EDITION/REVISION A/0
R
NINGBO DAVID
SERVICE MANUAL
HKN-93 SERIES
INFANT RADIANT WARMER
NINGBO DAVID MEDICAL DEVICE CO., LTD.
ADD: NO.158 DAQING ROAD, SHIPU, NINGBO, ZHEJIANG PROVINCE, CHINA
POST CODE: 315731
FAX: 0086-574-65962111
MARKETING CENTER: NO. 11, ALLEY 722 SANGTIAN ROAD NINGBO, ZHEJIANG
POST CODE: 315040
TEL: 0086-574-87800008, 87800009
E-MAIL: sales@chinadavid.cn
FAX: 0086-574-87801111
david@mail.nbptt.zj.cn
WEBSITE: http://www.nbdavid.com
EUROPEAN REPRESENTATIVE: SHANGHAI INTERNATIONAL HOLDING CORP. GMBH (EUROPE)
ADD: EIFFESTRASSE 80, 20537 HAMBURG, GERMANY
TEL: 0049-40-2513175
FAX: 0049-40-255726
EDITION/REVISION A/0
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
WARRANTY
The product being described in this manual is warranted against defects in materials or
workmanship for one year from the date of shipment, with the following exceptions.
1. All consumable and disposable products are guaranteed to be free from defects upon shipment
only.
2. Calibrations are considered normal maintenance and are not included in the 1-year warranty.
During the warranty period any defective parts other than those listed above will be replaced at no charge
to the customer. This warranty is rendered void and our company cannot be held liable for conditions
resultant there from if:
1. Damage to the unit is incurred as a result of mishandling.
2. The customer fails to maintain the unit in a proper manner.
3. The customer uses any parts, accessories, or fittings not specified or sold by our company.
4. Sale or service is performed by the non-certified service/dealer agency.
This warranty is in lieu of all other warranties, expressed or implied, and our company shall in no
event be liable for incidental or consequential damages including loss of use, property damage, or
personal injury resulting from breach of warranty.
Please test each piece of equipment prior to initial use and at least annually thereafter. To comply
with this standard, we recommend that you participate in our training program before selling it. This
service can be performed by certified technicians through our Product Service Group and authorized
dealers.
SERVICE
For optimal performance, product service should be performed only by qualified service personnel.
Technical Services representatives can be reached for fixations and are dispatched for required
maintenance by calling 0086-574-87800008, 87800009. Customers outside China should contact their
local factory-authorized distributor for service.
COMPLEMENTARY NOTICE
This manual provides instructions for installation and maintenance of Infant Radiant Warmer Series
HKN-93A, HKN-93B, HKN-93. And HKN-93A is the most complex mode among warmer HKN-93series.
So the contect of this manual is based on HKN-93A, and the difference between these models is
explained in this manual.
Since Ningbo David, conducts a continuous product improvement program, circuit and component
improvements are sometimes incorporated into equipment before they can be incorporated into the
printed manuals. This manual contains proprietary information, repairs and authorized modifications
should be performed only by qualified service personnel to maintain your warranty and to avoid creating
safety hazards. We cannot assume responsibility for any conditions affecting the proper operation of this
equipment which may result from unauthorized repair modification. Therefore, some parts used in your
equipment may be different than those which appear in the parts list of this manual. This sometimes
occurs due to difficulty in parts procurement, but does not alter the function of the equipment
The device, accessories and the packaging have to be disposed of waste correctly at the end of the
usage. Please follow Local Ordinances or Regulations for disposal.
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TABLE OF DEFINITIONS AND SYMBOLS
TECHNICAL DEFINITIONS
SKIN TEMPERATURE SENSOR: A sensing device including the link with the equipment intended to
measure the infant’s baby temperature.
CONTROL TEMPERATURE: The preventative control temperature to the temperature control.
PRE-WARM MODE: A warm mode which can keep the mattress at a properly temperature. The heater
output will work automatically according to the set programme in this mode.
MANUAL MODE:
A operation mode of in which the heater output is either at a fixed level or a
proportion of its maximum output set by the operator.
BABY MODE:
A mode of operation in which the power output varies automatically in response to the
temperature of the baby, to achieve a temperature close to a value set by the operator.
STEADY TEMPERATURE CONDITION: A condition which is reached when the temperature, measured
at the center of the TEST DEVICE positioned on the mid point of the EQUIPMENT mattress, does not
vary by more than 1℃ over a period of 1 hour.
TEMPERATURE ALARM CHECKOUT STATE: The difference between the indicated temperature and
control temperature is within ±0.5℃ and such state lasts for over 10 minutes. When checkout the
temperature alarm function, operation should be enter this state.
APGAR TIMER: It offers the functions of three periods alarming indication: 1min, 5min, and 10min for
clinical treatment.
TOTAL IRRADIANCE FOR BILIRUBIN Ebi：Irradiance equal to the evaluated irradiance in the range
between 400 nm and 550nm.
UNIFORMITY G2 OF THE TOTAL IRRADIANCE FOR BILIRUBIN: Ratio of the lowest TOTAL
IRRADIANCE FOR BILIRUBIN Ebi min to the highest TOTAL IRRADIANCE FOR BILIRUBIN Ebi max on the
EFFECTIVE SURFACE AREA in section 5.
LIFETIME OF LIGHT SOURCE: Time after the average total irradiance for bilirubin Ebi is attenuated by
25%
NOTE, IMPORTANT, CAUTION AND WARNING
NOTE: A note is inserted in text to point out procedures or conditions, which may otherwise be
misinterpreted or overlooked. A note may also be used to clarify apparently contradictory or
confusing situations.
IMPORTANT: Similar to a Note but be used where greater emphasis is required.
CAUTION: A caution is inserted in text to call attention of a procedure which, It not followed exactly, can
lead to damage or destruction of the equipment.
WARNING: A warning is inserted in text to call attention to dangerous or hazardous conditions inherent
to the operation, cleaning, and maintenance of the equipment which may result in personal
Injury or death of the operator or patient.
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SYMBOLS
Attention, Consult Accompanying Documents.
Input Power
Type F Fuse 5AH/250V
Auxiliary Mains Output, MAX:0.3A
Type F Fuse 6.3AH/250V
Type T Fuse 800mAL/250V
Type T Fuse 315mAL/250V
Type T Fuse160mAL/250V
Heater Power Indicator
Type T Fuse 1.25AL/250V
Type T Fuse 400mAL/250V
Type T Fuse 1.6AL/250V
Type T Fuse 3.15AL/250V
Height adjustment down key
Height adjustment upper key
Data Communication Connector
Load Symbol
On (Power:Connection to the mains)
Off (Power:Disconnection to the
mains)
On (only for a part of equipment)
Off (only for a part of equipment)
Class I Equipment
Type BF Applied Part
Protective Earth (ground)
Earth (ground)
Danger! High voltage!
Timer Key
Set Up Key
Set Down Key
Keypad Lock Key
Calibration Key
Silence/Reset Key
Mode Select Key
LED mark *
Eye mask mark/
phototherapy unit
LED mark *
CE Marking
Date of Manufacture
Serial Number
NOTE: The label marked with * is usually sticked on the surface of phototherapy
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SERVICE MANUAL FOR INFANT RADIANT WARMER
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SEASONAL SAFETY CHECK
1. Please clean the plug of power cord at least once a year. Too much dust on plug may cause the fire.
2. The following safety checks should be performed at least every 12 months by a qualified person who
has adequate training, knowledge, and practical experience to perform these tests. The data should be
recorded in an equipment log. If the device is not functioning properly or fails any of the above tests, the
device has to be repaired.
1 . Inspect the equipment and accessories for mechanical and functional damage.
○
2 . Inspect the safety relevant labels for legibility.
○
3 . Inspect the fuse to verify compliance with rated current and breaking characteristics.
○
4 . Verify that the device functions properly as described in the instructions for use.
○
5 . Test the protection earth resistance according IEC 60601-1:1988 + A1:1991 + A2:1995: Limit
○
0.1Ω.
6 . Test the earth leakage current according IEC 60601-1:1988 + A1:1991 + A2:1995: Limit: NC
○
500μA, SFC: 1000μA.
7 . Test the enclosure leakage current according to IEC 60601-1:1988 + A1:1991 + A2:1995: Limit:
○
NC 100μA, SFC: 500μA.
8 . Test the patient leakage current according IEC 60601-1:1988 + A1:1991 + A2:1995: Limit: for
○
a.c.: 100μA (BF), for d.c.: 10μA (BF).
9 . Test the patient leakage current under single fault condition with mains voltage on the applied
○
part according IEC 60601-1:1988 + A1:1991 + A2:1995: Limit: for a.c.: 500μA (BF), for d.c.: 50μA (BF).
10 . Test the patient auxiliary leakage current according IEC 60601-1:1988 + A1:1991+ A2:1995:
○
Limit: NC for a.c.: 100μA (BF), for d.c.: 10μA (BF).SFC 500μA (BF), for d.c.: 50μA (BF).
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TABLE OF CONTENTS
SECTION
PAGE
1. GENERAL INTRODUCTION………………………………………………………………………………1-1
1.1 INTRODUCTION……………………………………………………………………………………………1-1
1.2 DESCRIPTION…………………………………………………………………………………...……… 1-1
1.3 COMPOSITION OF PRODUCTS………………………………………………………………...……… 1-1
2. INSTALLATION……………………………………………………………………………………………..2-1
2.1 UNPACKING…………………………………………………………………………………...………….2-1
2.2 INSTALLATION………………………………………………………………...………………….….…….2-1
2.3 OPERATION CHECKOUT PROCEDURE…………………………………...………………….….…….2-4
3. TECHNICAL INFORMATION………………………………………………………………………….…3-1
3.1 SPECIFICATION……………………………………………………………………………………………3-1
3.2 WORKING PRINCIPLE………………………………………………………………………...………….3-3
4. PREVENTATIVE MAINTENANCE………………………………………………………………………...4-1
4.1 GENERAL………………………………………………………………………………………………....4-1
4.2 CLEANING………………………………………………………………………………………...………...4-1
4.3 STERILIZATION……………………………………………………………………………...………...4-3
4.4 MAINTENANCE…………………………………………………………………………………………….4-3
5. SERVICE……………………………………………………………………………………………………...5-1
5.1 GENERAL………………………………………………………………………………………………….5-3
5.2 REPLACEMENT OF CHARGING BATTERY/FUSE/QUARTZ HEATER/
ILLUMINATION LIGHT/ PHOTOTHERAPY UNIT………………………………………………………5-1
5.3 SYSTEM SETTING PROCEDURES……………………………………………………………………5-4
5.4 TROUBLESHOOTING PROCEDURES…………………………………………………………………5-7
6. REPLACEMENT OF SPARE PARTS………………………………………………………………………6-1
6.1 GENERAL ……………………………………………………………………………………………………6-1
7. DIAGRAMS……………………………………………………………………………………………………7-1
7.1 GENERAL……………………………………………………………………………………………7-1
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SECTION 1
GENERAL INTRODUCTION
1.1 INTRODUCTION
This manual provides instructions for installation and maintenance of Infant Radiant Warmer Series
93.
This manual provides the guidance for the qualified service personnel. As for the instruction, please
refer to the user's manual.
1.2 DESCRIPTION
Based on HKN-93, the Infant Radiant Warmer HKN-93B added with the Phototherapy; Infant Radiant
Warmer HKN-93A added the Breath Resuscitation Bag and Infant Head Fixing Unit based on HKN-93B.
The Infant Radiant Warmer Series 93 adopts 3 kinds of control mode: Pre-warm mode, Manual mode
and Baby mode. Once the device starts working, it can enter into the Pre-warm mode automatically
without pressing any key.
The setting temperature and baby temperature can be indicated separately.
Except for the listed parts in 1.3, the warmer also has the quartz halogen lamp, X-ray tray and 4pcs
casters. ( Two of them with brakes).
1.3 COMPOSITION OF PRODUCTS
The following diagram shows the main parts of the infant radiant warmer (Based on the HKN—93A):
Warmer Module
I.V. Pole
Phototherapy unit
Phototherapy unit
Shelf
Temperature controller
Breath Resuscitation Bag
Infant Head Fixing Unit
Bassinet
Stand
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DESCRIPTION OF PART
EXPLANATION
Heater Head
This main part is composed of heater, reflective cover and so on, it is
intended to provide the radiation for electromagnetic spectrum infrared
range with weight of 16Kg, and its angle can be adjusted horizontal in two
ways. The lifetime of heater is 2000hrs.
Phototherapy
(For HKN-93B. 93A)
It is intended for treating the bilirubin of patient.
The light source of this device is LED, and its lifetime is 5000hrs.
Please wear the eye mask for patient when this part works, as for the
detail, please refer to the user’s manual.
I.V. Pole
Temperature Controller
Shelf
A kind of bearing part, which is used for hanging the infusion bottle.
Max. Load: 2Kg
The core part with 3 temperature control mode: pre-warm mode, manual
mode, baby mode, APGAR timer, timing function, and it is used for
automatic controlling of infrared radiation heat output, please refer to the
user's manual.
A kind of bearing part, which is used for putting some small objects.
Max. Load: 2 Kg
Bassinet
It is used for place the infant. The bassinet can be tilted. Max. Load: 10
Kg. This bassinet is equipped with 4pcs of panels to avoid the patient
falling off.
Size of mattress: 760mm × 595mm
Stand
A part which can support the main body of warmer. We have two kinds of
stand: fixed stand and vertical height adjustment stand. Usually we equip
the former one, and the second one is optional part. If equip the former
one the distance from the bassinet to the ground is 890mm; if equip the
vertical height adjustment one, the distance is 890mm~1030mm.
Breath Resuscitation Bag
(For HKN-93A)
It is intended to rescuing the neonate when the suffocation happens or
breath is blocked. Operate according to it’s manual.
Infant Head Fixing Unit
(For HKN-93A)
It is intended for fix neonate’s head during treatment. Operate according
to it’s manual.
NOTE: 1.Size of whole unit with fixed stand after installation: W730 × H1795 × D1100mm
2. Size of whole unit with vertical height adjustment stand: W730×H1795×D1100mm ~
W730×H1935×D1100mm
3. Weight of whole unit with fixed stand: 105Kg
4. Weight of whole unit with vertical height adjustment stand: 140Kg
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SECTION 2
INSTALLATION
2.1 UNPACKING
Generally, the WARMER is usually packed to one carton. When taking out the equipment from the
cartons, take care not to damage the spare parts of the WARMER.
FIGURE 2.1
2.2 INSTALLATION
At least two professionals are required to do the installation of the WARMER with spanners and
screwdriver.
Installation step:
A. INSTALL THE UPPER COLUMN GROUPWARE (UPPER COLUMN + WARMER MODULE)
a. The installation of the warmer with VHA.
① Unscrew the fixing bolt on the stand cover with screwdriver and remove the cover, and pull out
the power cord of warmer module.
②
Unscrew the Hexagon bolt M8X20, Spring washerΦ8, Flat washerΦ8 and external teeth
serrated lock washerΦ8 in figure 2.1 with spanner.
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③ Unscrew the pan head bolt M4X10, Spring washerΦ4, Flat washerΦ4 and external teeth
serrated lock washerΦ4 in figure 2.1 with screwdriver to disassemble the back cover of upper column.
④ Insert the upper column into the stand column, and tighten it with the previous unscrewed
Hexagon bolt M8X20, Spring washerΦ8, Flat washerΦ8 and external teeth serrated lock washerΦ8;
insert the power cord of warmer module into the socket in figure 4.2 long with the path inside the upper
column.
⑤ Assemble the stand cover into its original position with the unscrewed bolts and tighten the
cover with the unscrewed pan head bolt M4X10, Spring washerΦ4, Flat washerΦ4 and external teeth
serrated lock washerΦ4.
b. The installation of the warmer with fixed stand
①
Unscrew the Hexagon bolt M8X20, Spring washerΦ8, and Flat washerΦ8 on the upper
column.
②
Assemble the decoration slice into the column of stand as figure 2.2 indicates.
Cummerbund
Column
FIGURE 2.2
③ Insert the upper column groupware into the stand’s column as figure 2.3 indicates, and tighten it
with the previous unscrewed Hexagon bolt M8X20, Spring washerΦ8, and Flat washerΦ8.
Upper column
FIGURE 2.3
IMPORTANT: Please make sure that the upper column and the stand are vertical, or else, it will
affect the temperature uniformity on the mattress.
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B. INSTALL THE PANEL
Insert the panel into the Fixed seat as the arrow indicates in figure 2.4.1, and turn it upward to make
it vertical and press it as the figure 2.4.2 indicates.
Panel
Fixed Patch For Panel
FIGURE 2.4.1
FIGURE 2.4.2
NOTE: 1.Total 4 pieces panels, the panel with groove is the back panel.
2. Make the bassinet tilt when installing the back panel.
C. INSTALL SHELF AND I.V. POLE
①
Unscrew the pan head bolt M4X12, Spring washerΦ4, Flat washerΦ4 on upper column with
screwdriver.
②
Put the shelf on the upper column as figure 2.5.1 indicates, and tighten it with the previous
unscrewed pan head bolt M4X10, Spring washerΦ4, Flat washerΦ4.
③
Install the I.V. Pole on the upper column as figure 2.5.2 indicates and fix it with the tightening
clamp.
Tightening Clamp
Shelf
FIGURE 2.5.1
FIGURE 2.5.2
D. INSTALL THE PHOTOTHERAPY UNIT (FOR HKN-93B, HKN-93A)
①
In figure 2.6.1, connect the plug from phototherapy unit and the one from the Heater Head.
②
In figure 2.6.2, make the 3pcs round holes of calabash shape aim at the 3pcs bolts on the top of
Heater Head, and tighten it with the screwdriver.
Round holes of calabash shape
FIGURE 2.6.1
FIGURE 2.6.2
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E. INSTALL BREATH RESUSCITATION BAG (FOR HKN-93A)
①
In figure 2.7, install the hook of Breath Resuscitation Bag onto the column, and fix it with the
tightening clamp.
②
Put Breath Resuscitation Bag on the hook.
FIGURE 2.7
F. INSERT THE POWER CORD
Insert the power cord into its relevant socket. Check the WARMER according to the instruction in
section 2.3.
2.3 OPERATION CHECKOUT PROCEDURE
Please follow the below operation checkout procedure before use.
A. CHECK CASTERS
Check whether the caster can drop when lifting the radiant warmer 2cm above the ground. The drop
of the caster will cause danger during transporting.
IMPORTANT: At least two persons are required, one lifts the warmers, and the other has to check
the casters. It needs Min. 140Kg to light the whole unit. Please support the stand
with block to avoid the warmer inclining if the casters drop.
B. CHECK POWER FAILURE ALARM
When the general power supply and the switch of controller are turned off, pull off the power cord of
whole unit, the Power failure alarm should active, and the “Power” light will flash with continuous
audible sound.
This operation is used for checking if the power failure is normal or not. Insert the power cord again
or switch off the controller to silence alarming after finishing checking.
IMPORTANT: Please make sure that the internal charging battery is full before use it. If it is not
full, it may cause the power failure without any alarming. If the battery is full, and
there is no hint when disconnect the power cord, please refer to the qualified
service personnel.
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C. CHECK THE FUNCTION OF THE STAND (if applicable)
Step on the “upper” and “down” button on the bottom of the Stand after the power is supplied and
the adjustment to the height of the Stand should be actualized. If not, please refer to the qualified service
personnel.
NOTE: The vertical height adjustment Stand should be restarted after 30s.
D. START-UP THE CONTROLLER
Turn on the switch of the main power supply and temperature controller, the temperature controller
performs a long period sound “ringing” .All indicators are on, at this time, the device can do self-test
automatically for 5s. After then, the setting temperature indicator will display “--.-”, at the same time, the
baby temperature indicator displays the baby temperature, and the timer indicates the current time, and
the temperature controller can enter into the pre-warm mode automatically, and the pre-warm light will
be on. If one of them does not work, or the indication is incomplete, please refer to the qualified service
personnel.
E. CHECK WORKING MODE
① Place the skin sensor on the central of mattress, and record the baby temperature in the cold
stare, and then start the warmer to make the device enter into the pre-warm mode automatically for
30min, and please read the baby temperature to compare the indicated temperature after pre-warm and
the one in the cold state, it should not less than 4℃. If not, please replace the heater.
② please select the manual control mode, the system default of heat output proportion is 30%,
there is 3grades in the heat indicator, press Up or Down key to adjust the value within range of
0%-100%.
Please set the heat output proportion ＞30%. There is alarm every 15min, “CHECK” alarm light
flashes, and the set temperature indicator displays alarm code E0.9, press silence/reset key to silence
alarming. The device still works according to the current mode and heat output proportion. If do not press
silence/reset key when “CHECK” alarm actives, the device will decrease the heat output proportion to
30% in 1min. If not, please refer to the qualified service personnel.
③ In Baby mode, pull off the skin sensor, the audible and visual alarm will occur, the alarm light of
sensor and the set temperature indicator will show alarm code E0.1. Press silence/reset key to silence
alarming for 4min. connect again the skin sensor, the device will come back to the normal working
condition.
F. CHECK SETTING ALARM
In Baby mode, put the skin sensor into the water cup at temperature lower 3.5℃ than the set
temperature for 2min, the setting temperature alarm will active. The “Set” light should flash with
continuous audible sound, and the set temperature indicator will show alarm code E0.7. Press
silence/reset key to silence alarming for 4min.
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Set the temperature at 36℃, after the device enters into the temperature alarming checkout state,
put the skin sensor into the water cup at temperature 35.3℃±0.1℃ for 3min, the setting temperature
alarm will active. The “Set” light should flash with continuous audible sound, and the set temperature
indicator will show alarm code E0.8. Press silence/reset key to silence alarming for 4min.
G. CHECK DEVIATION ALARM
In baby mode, set the temperature at 35.0 ºC. Enter temperature alarm checkout state, put the
skin sensor into the water cup at 37 ºC. When the indicated temperature reaches 36.0 ºC, the upper
deviation alarm will active. The “H/L” light should flash with continuous audible sound, and the set
temperature indicator should show alarm code E0.5; Set the temperature at 35.0℃, after the device
enters into the temperature alarming checkout state, put the skin sensor into the water cup at
temperature 33℃, when the indicated temperature decreases to 34.0 ºC, the lower deviation alarm
should active. The “H/L” light should flash with continuous audible sound, and the set temperature
indicator should show alarm code E0.6. Press silence/reset key to silence alarming for 4min.
NOTE: If the system can not enter into the temperature alarm checkout state or the baby
temperature does vary ±1℃ than the setting temperature, the deviation alarm can
not occur.
H. CHECK OVER-TEMPERATURE ALARM
In baby mode, put the skin sensor into the water cups at 39.5℃±0.5℃, the over-temperature alarm
should active. The “Over” light should flash with continuous audible sound, and the set temperature indicator
should show alarm code E0.4. Press silence/reset key to silence alarming for 4min. reduce the baby
temperature and press silence/reset key to silence alarming.
I. CHECK APGAR TIMER
When the temperature controller is under the normal working state, press the APGAR key, the timer
start to indicate from 0s, when the timer indicates 50”～1’, 4’50”～5’, 9’50”～10’, it sounds “du…”, at the
same time, the APGAR timer is flashing.
J. CHECK THE TIMER
Under the normal working condition, press to indicate the current running time, If the indicated time
is not accurate, please reset, and the specific setting method is as follows:
Press the timer key, at the same time, turn on the controller for 3min, loosen the key when the
indicated setting interface appears.
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At this time, Set temperature indicator shows the setting code, baby temperature indicator will
indicate the relevant value (as for setting code, setting item and setting range, please refer to the
following table ), the timer indicator will indicates P002(it means it has entered into the setting interface).
Operator can choose the setting items by pressing the timer key or APGAR key, and press the up and
down key to choose the data setting. After then, press the set key to store the setting value, or you can
press the silent/reset key to store and exit after finishing all setting procedure. If turn off the power supply
without pressing the silent/reset key, and this setting is invalid, and system will store the previous setting
value.
TIME SET CODE
SETTING CODE
INDICATED ITEM
SET RANGE
001
The former two figure of year
19 ~20
002
The latter two figure of year
00 ~99
003
month
01 ~12
004
date
01 ~31
005
week
01~07（01means Sunday）
006
hour
00~23(24hrs)
007
minute
00~59
008
second
00~59
K. CHECK THE PHOTOTHERAPY AND THE TIMER
In normal working condition, press the timer mode key and choose the accumulative time mode of
phototherapy, the light is on. Press the switch of Phototherapy to active the unit, and the timer indicator
will indicates its timing from zero. Pressing the power key of the phototherapy again to turn it off, and the
timer indicator remains the time recorded and stops timing, which will keep on timing on the basis of the
previous time recorded when restarting the phototherapy. If not, please refer to the qualified personnel to
repair the phototherapy unit.
L. CHECK BASSINET TILT MACHANISM
Pull the pull handle as the arrow indicates to adjust the bassinet tilt.
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M. CHECK THE ADJUSTMENT FUNCTION OF ANGLE OF WARMER MODULE
Pull the handle for lock downward to rotate the heater module at horizon angle.
Handle for lock
N. CHECK ILLUMINATION LIGHT
Turn on the power switch of illumination light, and the light will be on.
O.CHECK THE PANEL
Push and pull the panel and check if the panels are firm or not and whether they are broken.
P. CHECK THE X-RAY TRAY
Push and pull the X-Ray tray and check if it is agile and handiness, or whether it is broken.
Q. CHECK I.V. POLE
Check if the I.V. Pole stand is tight or not.
R. END
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SECTION 3
TECHNICAL INFORMATION
3.1 SPECIFICATION
Specifications for the Radiant Warmer are provided in table 3.1. All specifications are subject to
change without notice. Changing of the air flow indoor or the tilt of the bassinet, or using heat-producing
devices near the Radiant Warmer are all possibly effect on the correlation among the temperature
uniformity of the mattress, the indicated temperature or the baby temperature.
TABLE 3.1 SPECIFICATIONS
Power Requirements………………………………………………………………………AC220V-230V/50Hz
Maximum Power Output…………………………………………………………………750W(for fixed stand)
Maximum Power Output………………………………………800W(for vertical height adjustment stand)
Maximum Heater Power Output………………………………………………………580W/240V
Auxiliary Mains Power Output……………………………AC220V-230V/50Hz, MAX. CURRENT 0.3A
Heater power display…………………………………………… 0 to 100%, adjustable in 10% increments
Protective earthed resistance…………………………………………………………………………＜0.1Ω
Earth leakage current …………………………………………………………………………N.C.: ＜0.5mA
S.F.C.: ＜1mA
Patient leakage current …………………………………………………………………………N.C.: ＜0.1mA
S.F.C.: ＜0.5mA
Patient Leakage Current (MAINS VOLTAGE ON THE APPLIED PART) …………………S.F.C: ＜5mA
This equipment belongs to Class I, Type BF applied part, normal device（IP20）continuously operated.
TEMPERATURE CONTROL RANGE AND ITS SPECIFCIATION
Temperature control range……………………………………………………………………34.5℃~37.5℃
Baby Temperature display range………………………………………………………………5℃~65℃
Deviation between baby temperature and control temperature…………………………………≤0.5℃
Accuracy of skin temperature sensor………………………………………………………………≤0.3℃
Temperature uniformity of mattress……………………………………………………………………≤2℃
ALARM (See table 3.2)
Power alarm or Probe failure or disconnection of skin sensor………………………Alarm code E0.1
The probe for over-temp failure……………………………………………………………Alarm code E0.2
Deviation of two probes failure………………………………………………………………Alarm code E0.3
Over-temp alarm for skin sensor……………………………………………………………Alarm code E0.4
Upper deviation alarm…………………………………………………………………………Alarm code E0.5
Lower deviation alarm…………………………………………………………………………Alarm code E0.6
Wrong temperature set alarm in baby mode………………………………………………Alarm code E0.7
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TABLE 1.1 SPECIFICATIONS (continued)
The sensor position alarm in baby mode………………………………………………Alarm code E0.8
The tip every min in manual mode……………………………………………………Alarm code E0.9
Internal system failure…………………………………………………….……..Alarm code H0.1～H1.1
ENVIRONMENT TEMPERATURE
Operating Range………………………………………………….……..……………………+18℃～+30℃
Storage Range……..………………………………………………….……………………… -40℃～+55℃
ENVIRONMENT HUMIDITY
Operating Range…………………………………………………………………30%RH～75%RH
Storage Range………………………………………………………………………………………≤93%RH
ATMOSPHERE PRESSURE
Shipment and store atmospheric pressure range…………………………………500hPa~1060hPa
Working atmospheric pressure range…………………………………………………700hPa~1060hPa
AIR FLOW RATE
AMBIENT AIR MOVEMENT RATE………………………………………………………………… <0.3M/S
OTHER SPECIFICATION
Working noise…………………………………………Ambient noise≤40dB(A), working noise≤50dB(A)
APGAR Timer…………………………………………………………………………………Tones at 50” ～1’,
4’50” ～5’, 9’50” ～10’
Maximum bilirubin radiation on the Mattress effective range…………………………≥800uW/cm2
Bilirubin uniformity of radiating on the mattress effective range…………………………………>0.4
Average value general bilirubin radiation of on the mattress effective range…………600 W/cm2
ALARM NOISE…………………………………………………………………………… ≤80dB(A) on mattress
SILENCE/RESET KEY
Press to silence the alarming, press twice to reset alarming.
Silence………………………………………………………………………………silence alarming for 4min,
alarming will silence if there is any other alarming actives
Reset……………………………………………………silence alarming to come back to the setting state
The lifetime ……………………………………………………………………………………………8 years
(Lifetime means the period from sell-by date to the date of discarding as useless.)
FACTORY DEFAULT SETTING (ORIGINAL STATE)
Heater mode…………………………………………………………………………………Pre-warm mode
Heater output proportion under Manual mode ……………………………………………………… 30%
Set temperature under baby mode……………………………………………………………………36℃
Time Mode…………………………………………………………………………………………Clock mode
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TABLE 1.1 SPECIFICATIONS (continued)
Spectral energy distribution
Spectral distribution
In the range of 320nm to 550nm, Schematic diagram of Ebi full spectrum radiation
1.2
1
0.8
s （λ ） 0.6
0.4
0.2
0
390
430
470
510
550
λ （nm）
Testing device integralE
bicalibration trend
3.2 WORKING PRINCIPLE
3.2.1 GENERAL
This section covers the function and the working principle, as for the figure for control system,
please refer to figure 3.2 and 3.3.
Surface temperature on mattress can be reached during the radiant system in figure 3.1, the radiant
heater outputs in the way of fixed proportion to make the body temperature of patient resume; in Baby
mode, the device will adjust the heat output proportion automatically by comparing the baby temperature
and the set temperature to keep the heat balance.
NOTE: During the process of getting the radiation and heat, the losing heat in convection,
evaporation, radiation, conduction will affect the heat balance. Therefore, to make the
baby decrease the dissipation, it is necessary to use the device in the environment of no
rapid air flowing ,and cover waterproof velum (polyethylene velum) the naked skin or to
use the waterproof net to increase the humidity around the skin to decrease the water
evaporation.
FIGURE 3.1 RADIATION PRINCIPLES
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Keypad control
Temperature indication
Function alarm
Output port
Heat control output
A
MIAN
MCU
A/D
Temperature control probe of skin sensor
Communication connector
A/D
Auxiliary
MCU
Over-temp checking probe of skin sensor
Output Port
Heat control output
B
FIGURE 3.2 CONTROL BLOCK DIAGRAM
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Start
Initialization
Timer 2 interrupt
System self-test
Timing
Data display
Return
YES
Keypad checking
Keypad handling
NO
Data handling
INTO interrupt
YES
ADC data
Trouble checking
NO
Heating control
Return
Alarm
identification
Series port
interruption
Charging control
Data transfer
Data display
Return
FIGURE 3.3 PROGRAMMED BLOCK DIAGRAM
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3.2.2 Temperature Control
Incubator temperature is adjusted through the compurgation between the baby temperature and the
set temperature. The Infant Radiant Warmer adopts 3 kinds of control mode: Pre-warm mode, Manual
mode and Baby mode, and the different mode had different way of heating. The user can choose the
wanted control mode by pressing the keys on the controller.
Pre-warm mode: system will output the heat according to the programme, after a while, the system
will output the heat at 30% to maintain the temperature on the mattress until the mode changes.
Manual mode: system will output the fixed heat according to the heat output proportion to make the
temperature on the mattress reach the wanted value so as to make the body temperature of patient
resume. The system default of heat output proportion is 30%.
Baby mode: System will adjust through the heat output proportion according to the baby
temperature and the set temperature to keep the heat balance of patient.
3.2.3 ALARM
Alarm is used for monitoring the control system state. The system will check the state by the alarm
checkout procedure. When the checked data is abnormal, it will alarm. Table 3.2 listed alarm condition.
TABLE 3.1 ALARM
ALARM MESSAGE
Power Failure Alarm
code
E0.1
Sensor Alarm
indicator is on
code
E0.2
code
E0.3
Over-Temp
Alarm indicator is
on
code
E0.4
Deviation Alarm
indicator is on
code
E0.5
DESCRIPTION
There is no power supply.
Short-circuit or open-circuit occurs on the temperature control probe
inside of skin temperature sensor, or connection with warmer is not
well, the heater will stop working, please press the Silence/reset key to
silence alarming for 4min, and then it can reset if there is no failure.
Short-circuit or open-circuit occurs on the over-temp probe inside of
skin temperature sensor, the heater will stop working, please press the
Silence/reset key to silence alarming for 4min, and then it can reset if
there is no failure.
Deviation of baby temperature of two probes inside of skin temperature
sensor is more than 0.8℃, the heater will stop working, please press
the Silence/reset key to silence alarming for 4min, and then it can reset
if there is no failure.
In the Baby mode, when the temperature measured by skin
temperature sensor is ＞38.5℃, the heater will stop working , please
press the Silence/reset key to silence alarming for 4min, and then it can
reset if there is no failure.
When the indicated baby temperature is more than 1℃(set value), the
heater will stop working , please press the Silence/reset key to silence
alarming for 4min, and then it can reset if there is no failure.
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TABLE 3.1 ALARM (CONTINUE)
ALARM MESSAGE
Deviation Alarm
indicator is on
code
E0.6
code
E0.7
Setting Alarm
indicator is on
Checking Alarm
indicator is on
The alarming
indicator is on
code
E0.8
When the indicated baby temperature is lower than 1℃ (set value), the
heater will stop working , please press the Silence/reset key to silence
alarming for 4min, and then it can reset if there is no failure.
When the baby temperature is lower 3.5℃ than the setting temperature,
the heater will stop working , please press the Silence/reset key to silence
alarming for 4min, and then it can reset if there is no failure.
When the device has entered into the steady temperature condition
because of the accidental or unreasonable out of the steady temperature
condition, and it will not enter into this condition in 3min without the
deviation alarm, the heater will stop working , please press the
Silence/reset key to silence alarming for 4min, and then it can reset if there
is no failure.
code
E0.9
In the Manual mode, the “CHECK” alarm with audible and visual will active
every 15min, the heater will keep working , please press the Silence/reset
key to silence alarming for 4min; the heat output proportion will be limited
to 30% without pressing the Silence/reset key.
code
H0.1
RAM inside of main MCU fails, the heater will stop working during
alarming, it is invalid to press Silence/reset key.
code
H0.2
ROM inside of main MCU fails, the heater will stop working during
alarming, it is invalid to press Silence/reset key.
code
H0.3
Communication of main and auxiliary MCU fails, the heater will stop
working during alarming, it is invalid to press Silence/reset key.
code
H0.4
E2ROM inside main y MCU fails, the heater will stop working during
alarming, it is invalid to press Silence/reset key.
code
H0.5
RAM inside of auxiliary MCU fails, the heater will stop working during
alarming, it is invalid to press Silence/reset key.
code
H0.6
ROM inside of auxiliary MCU fails, the heater will stop working during
alarming, it is invalid to press Silence/reset key.
code
H0.7
code
H0.8
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DESCRIPTION
ADC1 failure(e.g., main system TLV2544, including
damage, no response and so on), the heater will
alarming, it is invalid to press Silence/reset key.
ADC2 failure(e.g., main system TLV2544, including
damage, no response and so on), the heater will
alarming, it is invalid to press Silence/reset key.
wrong sample, chip
stop working during
wrong sample, chip
stop working during
code
H0.9
SRAM failure(including system cord failure), the heater will stop working
during alarming, it is invalid to press Silence/reset key.
code
H1.0
The timer RTC inside the system fails or is not accurate, the heater will
stop working during alarming, it is invalid to press Silence/reset key.
code
H1.1
Heat circuit failure(e.g., heater, solid relay, mechanical relay and all control
circuit fails), the heater will stop working during alarming, it is invalid to
press Silence/reset key.
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SECTION 4
PREVENTIVE MAINTENANCE
4.1 GENERAL
The section provides cleaning and maintenance instructions.
WARNING: Please cut off all switch connected with the power supply before cleaning.
4.2 CLEANING
This device must be cleaned and sterilized for the first time for initial use, or after used it for
one week.
4.2.1 DISASSEMBLY BEFORE CLEANING
A. Please cut off the main power connection and turn off all switches before cleaning.
B. Take out the skin temperature sensor from the temperature controller.
C. Take out the mattress from the bassinet, and take off the bedspread.
D. Please disassemble the panel from the bassinet according to the contrary sequence as
the step B of 2.2 in section 2.
E. Pull out the X-ray tray from the bassinet.
F. Please disassemble the phototherapy unit according to 2.2. in section 2.
4.2.2 CLEANING PROCEDURE
Please use the detergent registered by nation, and please follow the instruction for detergent
usage. Please proceed the following procedure after cleaning all dirt on the disassembled parts.
Please dry them after cleaning.
CAUTION: Some chemical detergent will conduct electricity or leave some remains so as
to the accumulation of dust that is easy conduct electricity. Please keep the
detergent away from all electric parts. Please do not leave the detergent on
these parts .
A. Clean the skin temperature sensor.
Use a disinfectant-detergent to thoroughly clean all surfaces; then dry with a clean cloth or
paper towel.
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B. Clean the bedspread
Scrub the bedspread with the disinfectant-detergent. After washing in the clean water, then
make it dry.
C. Clean the panel
NOTE: Alcohol can cause crazing of the clear Acrylic panel. Do not use alcohol, acetone,
or any organic solvents for cleaning. Do not expose the panel assembly to direct
ultraviolet radiation.
Use a disinfectant-detergent to thoroughly clean all surfaces; then dry with a clean cloth or
paper towel.
D. Clean the X-ray tray
Use a disinfectant-detergent to thoroughly clean all surfaces; then dry with a clean cloth or
paper towel.
E. Clean the bassinet, tray and the I.V pole
Use a disinfectant-detergent to thoroughly clean all surfaces; then dry with a clean cloth or
paper towel.
F. Clean the phototherapy unit
Use a disinfectant-detergent to thoroughly clean all surfaces; then dry with a clean cloth or
paper towel.
NOTE: The light resource protective panel is made of acrylic glass, in order to avoid the
crack ,please do not clean it with alcohol, acetone or other organic solutions, do
not place it under the direct radiation ultraviolet.
G. Clean the surface of the device.
Use a disinfectant-detergent to thoroughly clean all surfaces; then dry with a clean cloth or
paper towel.
NOTE: You should wait for the heater head became cooling completely, then the surface of
it can be cleaned.
CAUTION: 1. Please avoid the liquor flowed into the device during cleaning.
2.The reflect cover is an important parts which used to reflect the infrared
radiation heater to the mattress. It is easy to damage and you must be very
careful to clean it to prevent damaging it, or change the shape of it.
H. Clean the resuscitate bag and infant head fixing unit
Please clean according to the instruction in User’s manual.
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4.2.3 ASSEMBLE AFTER CLEANING
NOTE: Before install the parts onto the radiant warmer, please check each parts carefully
and to see whether there is any broken. If there is any broken, it should be replaced
immediately.
A. Inset into the X-ray tray into the bassinet.
B. Please assemble the panel into the bassinet according to the step B of 2.2 in section 2.
C. Put the mattress into the bedspread, and then put the mattress on the bassinet.
D. Put the skin temperature sensor into the sensor socket.
E. Please assemble the phototherapy unit according to the step D of 2.2. in section 2.
4.3 STERILIZATION
NOTE: Please do not steam autoclave.
Please use the low temperature sterilization or gas sterilization.
Please clean the device completely before gas sterilization. All replacements should be
moved from the warmer. The new replacement should be installed after the sterilization.
NOTE: Sterilization must not exceed 54.5℃.
After gas sterilization, please keep ventilation for 16-24hrs. During the ventilation, the warmer
should work in the day environment of 32℃-35℃. If you do not use the warmer after ventilation,
please cover the warmer with the dustproof mantle.
4.4 MAINTENANCE
4.4.1 RECHARGEABLE BATTERY MAINTENANCE.
Please check the condition of the build-in rechargeable battery before the first use of device
or in the alternation of device using.
A. Operate the unit for a period of 12 to 24 hours.
B. Trigger a power failure alarm by disconnecting the AC power cord.
C. The power failure alarm should activate and continue to alarm for at least 10 minutes.
D. Reconnect the unit to the AC line and recharge the battery.
If the power failure alarm cannot last more than 10 minutes, please replace the rechargeable
battery. For this battery, it should be replaced by qualified service personnel.
4.4.2 HEATER’S REPLACE
In order to ensure the effect of the infrared radiant, when the lifetime of heater ends, it must
be replaced even it can still work. The reason is:
The electromagnetism spectrum infrared radiance of the heater will be reduced with the long
working time. This will make the device not achieve the standard as table 3.1 in this manual.
Therefore, the previous effect will not be good when the doctor uses it to keep the patient
warm.
For the heater’s replacing, please refer to section 5.
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4.4.3 ACCURACY CALIBRATUON OF BABY TEMPERATURE SENSOR
Skin temperature sensor must be calibrated every half a year. The reason is:
With aging of skin temperature sensor, and the accuracy of sensor will changes a little to
make the baby temperature and the real temperature different so that the output heat can not
neet the clinical need heat.
Calibration method: in working state, put the skin sensor into the water cup at 36℃±0.1℃ or
inset the 36℃ calibration device on the socket of skin sensor, press the calibration key until the
Baby temperature indicator displays “--,--” for 10s, after the flashing stops, the calibration will
end when it indicates 36℃, and the you can continue to use the skin sensor. When it indicates
“EL.L”, it means the calibration error, please replace the skin temperature sensor.
NOTE: The temperature of the water cup must keep at 35.3℃±0.1℃ during calibration.
4.4 MAINTENANCE OF PHOTOTHERAPY UNIT
When the lifetime of phototherapy unit ends, please replace it for the phototherapy effect
even though it can still work. The reason is:
The radiation of LED will decline with the long working time, so the device will not meet the
requirements of Max. General bilirubin radiation in table 3.1, so that the preventative effect of
bilirubin radiation will lose.
The following table lists some common trouble within the lifetime.
Failure
Group LED lamp is not on
Reason
4 pcs LED in series is one
group, usually one of them is
damaged.
Connect the power supply;
please check the LED failure
with multi-voltage meter.
1. fuse on LED power board
1. Replace the fuse;
is damaged;
2. bad connection between
the LED power board and
All LED lamp is not on
LED board;
3. Plug of phototherapy unit
2. check the connection
between the LED power
board and LED board;
3. Check the power cord of
phototherapy unit and the
is not inserted or the
power output socket of
connection is not good.
warmer module.
1. bad connection between
A lot of LED lamp is not on
Troubleshooting
1. check the connection
the LED power board and
between the LED power
LED board;
board and LED board;
2. the power spruce on the
2. Check whether the power
LED power board can not
cord of the damaged LED
work.
is open circuit or short
circuit.
Please refer to section 5 regarding the replacement of phototherapy unit.
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SECTION 5
SERVICE
5.1 GENERAL
This section provides system setting procedure and the troubleshooting procedure of these
parts: replacement of illumination light, Quartz heater, Fuse, Internal charging Battery and
Controller.
5.2 REPLACEMENT OF CHARGING BATTERY, FUSE, QUARTZ HEATER,
ILLUMINATION LIGHT AND PHOTOTHERAPY UNIT.
5.2.1 REPLACEMENT OF ILLUMINATION LIGHT
See figure 5.1, open the protective cover of warmer module, disconnect the cable for
illumination light, and then open its fixing seat with pincher in order to take out the lamp and
replace it.
Fixing seat
Cable for illumination light
Illumination light
FIGURE 5.1
5.2.2 EPLACEMENT OF QUARTZ HEATER
See figure 5.2, open the protective cover of warmer module, unscrew the cable of two sides
for quartz heater and the mounting nut for bracket, take out the spring, disassemble the bracket
to take out the quartz heater.
Bracket
Quartz heater
The mounting nut for bracket
Cable of two sides for quartz heater
FIGURE 5.2
NOTE: Replacing of the quartz heating pipe must after it is cooled down.
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5.2.3 REPLACEMENT OF CHARGING BATTERY
Open Controller and replace internal battery. See figure 5.3, disonnect the battery fastener
and the internal charing battery, and take out the plastic warsher to replace the battery.
Internal charing battery
Battery fastener
Plastic warsher
Fuse’s seat
Fuse’s seat
FIGURE 5.3
NOTICE: 1.During replacing the internal battery, the plastic washer should be placed the
original position, and keep correct connection between the anode/ cathode of
battery and its fastener;the faulty connection will cause the damage to the
battery and no hont for power failure alarm.
2.Please replace theb internal battery after using it for three years.
3. Battery will be automatically charged when the temperature controller works,
charging the battery outside of the incubator is forbidden.
4.The charging battery inside the wartmer is GP17R8H Ni-MH8.4V/170mAh, to
ensure safety, do not disassemble battery. Connect the battery correctly, do not
use other type battery.
5.It will not influence battery charging and the battery capacity when the battery
is full. (Switch on controller)
6. Please do not throw the old battery into fire or water to avoid explosion or
leakage.
7.Please dispose the Old battery accoring to local law, and please do not throw
them away randomly.
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5.2.4 REPLACEMENT OF FUSE
A.Open the fuse’s covers in figure 5.4.1 and 5.4.2 to replace 2 fuses F6.3AH/250V on VHA
and 2 fuses F5AH/250V on warmer module.(for infant radiant warmer with VHA)
Fuse’s Seat
Fuse’s Seat
FIGURE 5.4.1
FIGURE 5.4.2
FIGURE 5.4
B.Open the fuse’s covers in figure 5.5 to replace 2 fuses F5AH/250V on warmer module.(for
infant radiant warmer with fixed stand)
Fuse’s Seat
FIGURE 5.5
C.See figure 5.3, open the protective cover on warmer module, and open the the fuse’s
cover of T400mAL/250V and T800mAL/250V on power board to replace 2 fuses. Open the the
fuse’s cover of T160mAL/250V to replace the fuse.
IMPORTANT: Please cut off the power supply, and pull off the power cord to replace the
fuse according to the specification.
5.2.5 REPLACEMENT OF PHOTOTHERAPY UNIT (For HKN-93A, 93B)
Disassemble the phototherapy unit and unscrew the limit bolt on the protective cover and
LED board. Take out the LED board as figure 5.6 indicates to replace the LED power board and
LED board. Open the fuse’s cover to replace fuse T1.6AL/250V.
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LED board
Fuse T1.6AL/250V
Pull out the LED board as the arrow indicates
EDITION/REVISION A/0
LED power board
LED board
FIGURE 5.6
5.3 SYSTEM SETTING PROCEDURES
5.3.1 GENERAL
This paragraph provides controller system setting procedure. This procedure is only available
to the qualified service personnel.
NOTICE: Please follow by the procedures of item 5.3.3. if it is unnecessary, please do not
change data of system setting to avoid hazards.
5.3.2 BRIEF INTRODUCTION
Controller system setting procedures listed below:
1. Brightness
2. Spare
3. Baby temperature compensation
4. Machine Number
5. High baby temperature deviation
6. Low baby temperature deviation
7. Upper limit of baby temperature set
8. Lower limit of baby temperature set
9. Over temperature alarm value
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CODE 00.1 BRIGHTNESS
Stipulate the brightness of the indicators and the set range is 00.0~01.5. The higher the
value is, the brighter the data is.
CODE 00.3 BABY TEMPERATURE COMPENSATION
Stipulate the compensationof the baby temperature and the set range is -5.0~05.0. The first
figure for set means increasing or decreasing. Example:00.2℃ means that the baby temperature
will be added 0.2℃ as compensation. -1.3℃ means that the baby temperature will be reduced
1.3℃ ascompensation.
CODE 00.4 MACHINE NUMBER
Set range is 00.0~04.0. Example 00.1 means No.1 machine, 01.5 means No.15 machine.
CODE 00.5 HIGH BABY TEMPERATURE DEVIATION
Set high deviation under baby mode, set range is 00.0~03.0.
Example: the data 01.0
means high deviation 1.0 ℃.
CODE 00.6 LOW BABY TEMPERATURE DEVIATION
Set low deviation under baby mode, set range is 00.0~03.0.
Example: the data 01.0 means
low deviation 1.0 ℃.
CODE 00.7 UPPER LIMIT OF BABY TEMPERATURE SET
Set Max. set value of baby temperature, set range is 35.0~38.0.
Example: the data 37.5
means high deviation 1.0 ℃.
CODE 00.8 LOWER LIMIT OF BABY TEMPERATURE SET
Set Min. set value of baby temperature, set range is 30.0~35.0.
Example: the data 34.5
means.
CODE 00.9 OVER TEMPERATURE ALARM SET
Set range is 37.0~41.0. Example 38.5 means that alarm value of over temperature is
38.5.℃.
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5.3.3 PROCEDURE
At first, connected power supply, press and hold
for 2s as soon as switch on until Baby
temprature indicator displays “ --.-“, and no display on Set temprature indicator. And then,
press
Or
until Baby temprature indicator displays “78.6”, after then, press
into the system set screen, or press
to enter
to exit
.After entering into the set screen, Set temprature indicator displays set code, Baby
temprature indicator displays the specific set data.
Turn on the power switch
Press and hold the
for 3s
Enter password
Press
key, EXIT
Press
or
Then press
Error
key to enter password 78.6,
key to confirm
Password check
YES
System setting screen
Press
key or
Key (For HKN-93,press
or
key ) set temperature indicator displays the set code
Brightness set of indicator
Press
or
Key can change
current set value
END
Press
key
Press
SAVE and EXIT
and
together
Return to original set
FLOW CHART 5.1 SYSTEM SET PROCEDURE FLOW CHART
5-6
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
5.4 TROUBLESHOOTING PROCEDURES
5.4.1 GENERAL
Troubleshooting guides for the Controller are provided in Paragraph 5.4.3 and Paragraph 5.4.4.
Paragraph 5.4.3 provides the alarm code when the controller alarms. Paragraph 5.4.4 provides
troubleshooting in the form of flowcharts.
z
It is confirmed that the system settings are correct before troubleshooting.
5.4.2 TEST EQUIPMENT REQUIRED
The test devices listed below are required for troubleshooting the Controller. Equivalent test
device may be substituted.
z
Digital VOM, FLUKE 8060A
z
31.0℃ Baby Temperature Simulation
Simulator probe for sensor
Resistor R1, 2=23166Ω±182Ω/0.25W/0.5%
5.4.3 TROUBLESHOOTING
All alarms have the relevant alarm code except for the power ٛ ailure alarm , please refer to Table
5.1.
TABLE 5.1 ERROR CODES
TYPE
ALARM
CODE
Main RAM failure alarm
H0.1
Replace main MCU
Main ROM failure alarm
H0.2
Replace main MCU
Double MCU communication failure alarm
H0.3
1. Check the connection of circuit between
the main MUC and auxiliary MCU
2. Replace main MUC and auxiliary MCU
E2PROM main MCU failure alarm
H0.4
Replace main MCU
5-7
W3
EXPLANATION AND
CORRECTIVE ACTION
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
TABLE 5.1 ERROR CODES（CONTINUE）
RAM failure alarm inside auxiliary MCU
H0.5
Replace auxiliary MCU
ROM failure alarm inside auxiliary MCU
H0.6
Replace auxiliary MCU
Main ADC failure alarm
H0.7
Refer to Flow chart 5.1
Auxiliary ADC failure alarm
H0.8
Refer to Flow chart 5.2
SRAM failure alarm
H0.9
Replace U7 on mian board
Real timer RTC failure alarm
H1.0
Replace U21 on mian board
Heat circuit failure alarm
H1.1
Refer to Flow chart 5.3
E0.1
Refer to Flow chart 5.4
E0.2
Refoer to Flow chart 5.5
Deviation failure alarm Skin
temperature sensor
E0.3
Refer to Flow chart 5.6
Over-temp alarm
E0.4
Refer to Flow chart 5.7
Upper deviation
E0.5
Lower deviation
E0.6
1. Check the position of sensor
2. Check the ambient temperature
3. Make the device far away the heat resource
Skin temperature sensor failure alarm
Deviation alarm
E0.7
Please set the temperature or change the cotrol
mode correctly
E0.8
Please check the condition of probe and the
patient’s skin
NO
Refer to Flow chart 5.8
Set alarm
Power failure alarm
5-8
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
5.4.4 TROUBLESHOOTING FLOW CHART
Before troubleshooting, forst, please switch off, and disconnect the power cable, and then open
the top cover of warmer module and the back cover of column. And then connect the power cable and
turn onthe switch, at the same time, make sure that power +5V, +12V of controller, element, and all
cables are in good condition.In working state, press
Key and
Key , and the Baby temperature
indicator displays the temperature measured by the Over-temp probe inside skin sensor, and Set
temperature indicator displays the voltage of battery, so it is easy to find the reason of failure.
Main ADC failure alarm
Primary power
On main board
NO
between R8 and R9
Check R8 and R9.
is +2.5V ?
YES
On main board
NO
Pin of U5-9 is +2.5V ?
Check the associated circuits
Between U5-9 and R8, R9
YES
On main board
Connect U5 to
NO
Check the associated circuits.
U16 is normal?
YES
Replace U5
FLOW CHART 5.1 MAIN ADC FAILURE ALARM
5-9
W3
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Auxiliary ADC failure alarm
Primary power
On main board
NO
between R14 and R15
Check R14 and R15.
is +2.5V ?
YES
On main board
Pin of U6-7 is +2.5V ?
NO
Check the associated circuits
Between U6-7and R14, R15
YES
On main board
Connect U6 to
U19 is normal?
NO
Check the associated
circuits.
YES
Replace U6
FLOW CHART 5.2 AUXILIARY ADC FAILURE ALARM
5-10
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Heat circuit failure alarm
Inside warmer module
open circuit of
heater?
YES
Replace heater
Checking point: Point A
Controller is in the heating stae of 100%
Pin 1of solid relay
Solid relay is
inside
the
power frame,
and J1 on the
power board
YES
Checking point: Point B
and J1-2 is AC power?
NO
On power board
Control terminal
of Solid relay K1 is
+12V?
YES
Check solid relay abd replay K1
NO
YES
On power board
Triode Q2-B, Q3-B is
Replace Q2, Q3
＞0.7V?
NO
On main board
U10-9, U10-7 is high level?
Check connection between
the main board and power
NO
board
Replace main board
FLOW CHART 5.3 HEAT CIRCUIT FAILURE ALARM (Sheet 1 of 4)
5-11
W3
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Checking point: Point A
Controller is in the state of non-heat
Solid relay is inside
the power frame
J1 is on powre board
Pin 1 of
sole relay and J1-2 is
AC power?
NO
Checking point: Point C
YES
On Power board
The control terminal
of solid replay K1 is +12V?
NO
Check solid relay and
relay K1
YES
On power board
Triode Q2-B, Q3-B is ＞0.7V?
YES
Replace Q2, Q3
YES
U10-9,
On main board
U10-7 is high level?
NO
Check connection between
the main board and power
board
YES
Replace main board
FLOW CHART 5.3 HEAT CIRCUIT FAILURE ALARM (Sheet 2 of 4)
5-12
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Checking point: Point B
NO
On power board
Voltage of U1-2 is ＞5mV?
Check inductor T1
YES
NO
On power board
Voltage of U1-1 is ＞2V?
Check U1, R1, C3
YES
On power board
Triode Q1-B is
NO
Check R2, R4, C4
＞0.7V?
NO
On main board
U11-2 is high level?
Check the connection between
main board and the power
board
YES
Replace main board
FLOW CHART 5.3 HEAT CIRCUIT FAILURE ALARM (Sheet 3 of 4)
5-13
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Checking point: Point C
YES
On power board
voltage of U1-2 is ＞5mV?
Check inductor T1
NO
YES
On power board
voltage of U1-1 is ＞2V?
Check U1, R1, C3
NO
YES
On power board
Triode Q1-B is ＞0.7V?
Check R2, R4, C4
NO
YES
On main board
U11-2 is high level?
Check the connection
between main board and
power board
NO
Replace the main board
FLOW CHART 5.3 HEAT CIRCUIT FAILURE ALARM (Sheet 4 of 4)
5-14
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Skin Temperature Sensor Failure Alarm (E0.1)
``
Check connection
between air sensor and
its seat, the connection
seat and J4 on main board
NO
Good conection
Inset the sensor or J3
The 31.0℃±0.2℃Baby Temperature Simulation (decade
, equal 23166Ω±182Ω) will instead skin sensor, turn on
power supply
Baby temperature indiccator
Display 31.0℃±0.2℃
NO
alarm code E0.1?
Replace the skin temperature sensor
YES
NO
On the main board
U5-7 is 2.3V?
Check relay R4 and the connecting
cable between resistor R4and U5-7
YES
Check U5
FLOW CHART 5.4 Skin Temperature Sensor Failure Alarm (Sheet 1 of 1)
5-15
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Skin Temperature Sensor Failure Alarm (E0.2)
``
Check connection
between air sensor and
its seat, the connection
seat and J3 on main board
NO
Good conection
Inset the sensor or J3
The 31.0℃±0.2℃Baby Temperature Simulation (decade
, equal 23166Ω±182Ω) will instead skin sensor, turn on
power supply
Probe temperature of skin
sensor 31.0℃±0.2℃
NO
alarm code E0.2?
Replace the skin temperature sensor
on page 5-8
YES
NO
On the main board
U6-6 is 2.3V?
Check relay R5 and the connecting
cable between resistor R5 and U6-6
YES
Check U6
FLOW CHART 5.5 Skin Temperature Sensor Failure Alarm
5-16
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Skin Temperature Sensor deviation Failure Alarm (E0.3)
``
Check connection
between air sensor and
its seat, the connection
seat and J3 on main board
NO
Good conection
Inset the sensor or J3
The 31.0℃±0.2℃ Baby Temperature Simulation (decade
, equal 23166Ω±182Ω) will instead skin sensor, turn on
power supply
2 Probes temperature of skin
sensor at 31.0℃±0.2℃
NO
alarm?
Replace the skin temperature sensor
on page 5-8
YES
NO
On the main board
U5-7 and U6-6
Check resistor R3 and R5
is 2.3 V?
YES
Check U5 or U6
FLOW CHART 5.6 Skin Temperature Sensor devoation Failure Alarm
5-17
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
OVER TEMPERATURE ALARM
YES
Heating source nearby
Far away from
heating source
NO
Over-temp probe
On page 5-8
NO
Temperature of Over-temp probe
Troubleshooting
Is normal?
according to flow
chart 5.5
YES
Solid relay is inside
the power frame, and
J1 on the power board
NO
Pin1 of sold relay and J1-2 is
Checking point:
AC power?
Point C ( page 5-13)
YES
NO
On powr board
Control terminal of solid relay K1
Check solid relay and
is +12V?
relay K1
YES
Triode Q2-B and
On power board
NO
Q3-B is ＞0.7V?
Replace Q2, Q3
YES
FLOW CHART 5.7 Over Temperature Failure Alarm
5-18
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
From sheet 1
On main board
U10-9, U10-7
NO
Is high level?
Check connection btween
Main board and power
board
YES
FLOW CHART 5.7 Over Temperature Failure Alarm (Sheet 2 of 2)
Power failure alarm
NO
Controller has AC power input?
Check main power input
YES
Fuse on the back cover of
YES
Replace fuse
controller is damaged?
NO
NO
Second output of power transformer
is normal?
YES
FLOW CHART 5.8 Power Failure Alarm (Sheet 1 of 2)
5-19
W3
Check transformer
and initial fuse
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
From sheet 1
NO
On power board
Output voltage of U3-3 is +5V?
Check F1, B1, U3,
C5, C9, C13,
C6, D4
YES
NO
On power board
J8-8 is high level?
Check connetion between
U5, U2, R17-R22 and
power board and
main board
YES
NO
On main board
J2-8 is high level?
Check the data bus
between the main
YES
board and power
board
Replace U11
FLOW CHART 5.8 Power Failure Alarm (Sheet 2 of 2)
5-20
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
SECTION 6
REPLACEMENT PARTS
6.1 GENERAL
This section provides parts lists for infant radiant warmer. Part numbers of accessories are
provided below:
Figure 6.1 Parts Location Diagram, whole unit
6-1
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Table 6.1 Replacement Parts List, whole unit
ITEM No.
DESCRIPTION
PART NUMBER
1
Warmer module
K05 000 00
2
column
K03 000 00
3
bassinet
K04 000 00
4
VHA stand
P01 000 00
5
controller
K02 000 00
6
Phototherapy unit
K06 000 00
Figure 6.2 Parts Location Diagram, Warmer Module
6-2
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Table 6.2 Replacement Parts List, Warmer Module
ITEM No.
DESCRIPTION
1
Shell for warmer module
K05 001 00
2
Switch panel
K05 002 00
3
Reflective mantle
K05 003 00
4
Reflection bar
K05 004 00
5
Protective rod
K05 005 00
6
Frame
K05 006 00
7
Spring II）
K05 007 00
8
Snap spring
K05 008 00
9
Cold lamp
K05 009 00
10
R4.0 transformer
K05 010 00
11
Top cover
K05 011 00
12
Cross groove pan head bolt M6×14
See No. of standard Parts
13
Cross groove pan head bolt M6×12
See No. of standard Parts
14
Cross groove pan head bolt M4×12
See No. of standard Parts
15
Flat washer 4
See No. of standard Parts
16
Spring washer 4
See No. of standard Parts
17
external teeth serrated lock washers 4
See No. of standard Parts
18
Wiring slice 4
See No. of standard Parts
19
Hexagon nut M4
See No. of standard Parts
20
Cross groove pan head bolt M3×12
See No. of standard Parts
6-3
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PART NUMBER
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Table 6.2 Replacement Parts and Accessories List
ITEM
DESCRIPTION
No.
PART NUMBER
21
Spring washer 3
See No. of standard Parts
22
Flat washer 3
See No. of standard Parts
23
Cross groove pan head bolt M4×40
See No. of standard Parts
24
Hexagon nut M3
See No. of standard Parts
26
Cross groove pan head bolt M3×8
See No. of standard Parts
26
External teeth serrated lock washer 3
See No. of standard Parts
27
Cross groove pan head bolt M4×30
See No. of standard Parts
28
Powe switch
K05 012 00
29
Cover nut M3
See No. of standard Parts
30
Cold pressure wiring terminal 4
K05 013 00
31
Quartz heater
K05 014 00
32
Compressed spring
P01 013 00
33
Scaleboard
K05 015 00
6-4
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Figure 6.3 Parts Location Diagram, Column
Table 6.3 Replacement Parts List, Column
ITEM No.
DESCRIPTION
1
Tightening clamp
K03 001 00
2
shelf
K03 002 00
3
Seat for shelf
K03 003 00
4
Cross arm of I.V. Pole
K03 004 00
5
Infusion rod
K03 005 00
6
Ferrite
K03 006 00
7
Nylon strap
K03 007 00
8
Sping washer 5
See No. of standard Parts
9
Cross groove pan head bolt M5×16
See No. of standard Parts
10
Cross groove pan head bolt M4×10
See No. of standard Parts
11
Flat washer 4
See No. of standard Parts
12
Spring washer 4
See No. of standard Parts
6-5
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PART NUMBER
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Figure 6.4 Parts Location Diagram, Bassinet
6-6
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Table 6.4 Replacement Parts List, Bassinet
ITEM No.
DESCRIPTION
1
Back panel
K04 001 00
2
Front panel
K04 002 00
3
Left panel
K04 003 00
4
Right panel
K04 004 00
5
Fixing seat
K04 005 00
6
Left socket
K04 006 00
7
X-ray tray
K04 007 00
8
Right socket
K04 008 00
9
Hexagon nut M6
See No. of standard Parts
10
Spring washer 6
See No. of standard Parts
11
Flat washer 6
See No. of standard Parts
12
Pull handle
13
Spring washer 4
See No. of standard Parts
14
Cross groove pan head bolt M4×12
See No. of standard Parts
15
Flat washer 4
See No. of standard Parts
16
Waving handle
K04 010 00
17
Slotted tightening clamp M4×10
See No. of standard Parts
18
Regulate and compress packing
K04 011 00
19
External teeth serrated lock wahser 4
20
Bearing groupware
K04 012 00
21
Sliding block
K04 013 00
22
Cross connector
K04 014 00
23
transmission shaft
K04 015 00
24
Limit knot
K04 016 00
25
Hexagon slotted nut M12
See No. of standard Parts
26
Slot pin 3.2×18
See No. of standard Parts
K04 009 00
6-7
W3
PART NUMBER
See No. of standard Parts
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Figure 6.5 Parts Location Diagram, fixed Stand
Table 6.5 Replacement Parts List, fixed Stand
ITEM No.
DESCRIPTION
PART NUMBER
1
Pin head
K01 001 00
2
Pin column
K01 002 00
3
spring
K01 003 00
4
Bakelite handle
K01 004 00
5
Flat washer 8
6
Seal for guard rail
K01 005 00
7
shelf
K01 006 00
8
Caster with brake
K01 001 00
9
Caster without brake
K01 002 00
See No. of standard Parts
6-8
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Figure 6.6 Parts Location Diagram, VHA stad
Table 6.6 Replacement Parts List, VHA stad
ITEM No.
DESCRIPTION
1
Cross groove pan head bolt M4×10
See No. of standard Parts
2
Spring washer 4
See No. of standard Parts
3
Flat washer 4
See No. of standard Parts
4
Switch groupware
P01 009 00
5
Tread switch
P01 013 00
6
Hexgon round headbolt M6×25
See No. of standard Parts
7
Spring washer 6
See No. of standard Parts
8
Flat washer 6
See No. of standard Parts
9
Height adjustment transformer
P01 014 00
10
Height adjustment column
P01 007 00
11
Caster with brake
K01 001 00
12
Caster without brake
K01 002 00
6-9
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PART NUMBER
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Figure 6.7 Parts Location Diagram, Controller
6-10
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Table 6.7 Replacement Parts List, Controller
ITEM No.
DESCRIPTION
1
Fuse’s seat
Y02 025 00
2
Switch 129-432
K02 001 00
3
Power socket（include power filter FN9222-10-06）
4
Front push
K02 002 00
5
RS-232 communication connector groupware
H02 019 00
6
Cross groove pan head bolt M3×12
See No. of standard Parts
7
Flat washer 3
See No. of standard Parts
8
Spring washer 3
See No. of standard Parts
9
Hexagon nut M3
See No. of standard Parts
10
Cross groove pan head bolt M3×30
See No. of standard Parts
11
Buzzer
02 040 00
12
Transformer groupware
02 032 00
13
Cross groove countersunk head bolt M4×12
See No. of standard Parts
14
Spring washer 4
See No. of standard Parts
15
Hexagon nut M4
See No. of standard Parts
16
Solid relay
17
Cross groove countersunk head bolt M3×6
18
Power board
19
Battery box
20
Cross groove countersunk head bolt M3×12
See No. of standard Parts
21
Wiring slice 3
See No. of standard Parts
22
Earthed label
02 017 00
02 043 01
K02 003 00
See No. of standard Parts
K02 004 00
02 028 00
6-11
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PART NUMBER
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Table 6.7 Replacement Parts List, Controller
ITEM
DESCRIPTION
No.
PART NUMBER
23
Hexagon nut M5
See No. of standard Parts
24
Spring washer 5
See No. of standard Parts
25
Flat washer 5
See No. of standard Parts
26
External teeth serrated lock washer 5
See No. of standard Parts
27
Retagualr socket CB2-16S
K02 004 00
28
Support rod 3
K02 005 00
29
Paper washer Φ3
30
Adjustable wiring pin
K02 006 00
31
Power output socket SS－8B
K02 007 00
32
AC power cord
See No. of standard Parts
02 030 00
6-12
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SERVICE MANUAL FOR INFANT RADIANT WARMER
Figure 6.8
EDITION/REVISION A/0
Parts Location Diagram, Controller
Table 6.8 Replacement Parts List, Controller
ITEM No.
DESCRIPTION
1
Operatin panel for controller
K02 008 00
2
Cross groove pan head bolt M3×6
See No. of standard Parts
3
Spring washer 3
See No. of standard Parts
4
Paper washer Φ3
See No. of standard Parts
5
Main board
K02 009 00
6
Display frame
K02 010 00
7
Skin temperature sensor
H02 030 00
6-13
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PART NUMBER
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Table 6.9 Satandard parts list
ITEM
DESCRIPTION AND SPECIFICATION
No.
PART NUMBER
1
Cross groove pan head bolt M6×14
BZ 084
2
Cross groove pan head bolt M6×12
BZ 015
3
Cross groove pan head bolt M4×12
BZ 009
4
Flat wahser 4
BZ 037
5
Spring washer 4
BZ 044
6
External teeth serrated lock washer 4
BZ 088
7
Wiring slice 4
BZ 077
8
Hexagon nut M4
BZ 054
9
Cross groove pan head bolt M3×12
BZ 004
10
Spring washer 3
BZ 043
11
Flat washer 3
BZ 036
12
Cross groove pan head bolt M4×40
BZ 100
13
Hexagon nut M3
BZ 053
14
Cross groove pan head bolt M3×8
BZ 002
15
External teeth serrated lock washer 3
BZ 102
16
Cross groove pan head bolt M4×30
BZ 083
17
Cover nut M3
BZ 159
18
Spring washer 5
BZ 045
19
Cross groove pan head bolt M5×16
BZ 116
20
Cross groove pan head bolt M4×10
BZ 008
21
Hexagon nut M6
BZ 056
22
Srping washer 6
BZ 046
23
Flat washer 6
BZ 039
6-14
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SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Table 6.9 Satandard parts list
ITEM No.
DESCRIPTION AND SPECIFICATION
24
Slotted tightening clamp M4×10
BZ 169
25
Hexagon slotted nut M12
BZ 170
26
Slot pin 3.2×18
BZ 171
27
Flat washer 8
BZ 040
28
Hexagon round head bolt M6×25
BZ 147
29
Cross groove pan head bolt M3×30
BZ 082
30
Cross groove countersunk head bolt M4×12
BZ 023
31
Cross groove countersunk head bolt M3×6
BZ 017
32
Cross groove countersunk head bolt M3×12
BZ 020
33
Wiring slice 3
BZ 076
34
Hexagon nut M5
BZ 055
35
Flat washer 5
BZ 038
36
External teeth serrated lock washer 5
BZ 051
37
Paper washer Φ3
BZ 050
38
Cross groove pan head bolt M3×6
BZ 001
6-15
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PART NUMBER
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
SECTION 7
DIAGRAMS
7.1 GENERAL
The section provides wiring diagrams for Infant radiant warmer, parts location diagrams, and
schematic diagrams of controller.
CZ1: Retagular faucet CB2-16
RL1: Heater 580W/240V
K1: Controller ‘s switch RK1-01C/2×2
F1: T type fuse 1.25AL/250V
CZ2,CZ3: Connector 25471-4-B
B: R40 transformer
RL2: Illumination light
SD-14.5V/50W
K2: Switch of illumination light
RK1-01C/2×2
D: Earthed slice
OT1.5-4
F2: T type fuse 3.15AL/250V
WIRING DIAGRAMS OF WARMER MODULE
7-1
W3
SERVICE MANUAL FOR INFANT RADIANT WARMER
F1, F2：F type fuse 5AH/250V
X51: RS232 connector
T: Transformer R.20
F3:T type fuse
160mAL/250V
X52: Retagular faucet
CB2-16
D: Wiring slice OT1.5-4
EDITION/REVISION A/0
F4: T type fuse 315mAL/250V
B: Buzzer EFM-236LB/12VDC
S: General power switch
129-432
G: Charging battery GP17R8H Ni-MH8.4V/170mAh
K: Solid relay GN84137010-25A
X53: Auxiliary power output faucet SS-8B
X50: Power filter FN9222-10-06
WIRING DIAGRAMS OF CONTROLLER (Fixed stand)
7-2
W3
SERVICE MANUAL FOR INFANT RADIANT WARMER
F1, F2：F type fuse 5AH/250V
X51：RS232 connector
T：Transformer R.20
F3: T type fuse
160mAL/250V
X52: Retagualr faucet
CB2-16
D：Wiring slice OT1.5-4
G：Charging battery GP17R8H Ni-MH8.4V/170mAh
EDITION/REVISION A/0
F4:T type fuse 315mAL/250V
B: Buzzer EFM-236LB/12VDC
K: Solid relay GN84137010-25A
X50: Power filter FN9222-10-06
X53：Auxiliary power output faucet
WIRING DIAGRAMS OF CONTROLLER（ VHA stand）
7-3
W3
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
PARTS LOCATION DIAGRAM FOR POWER BOARD
7-4
W3
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Parts List of power board
ITEM NO.
CODE
DESCRIPTION AND SPECIFICATION
1
R1,R2,R11,R23,R24,R25
Resistor
0805-10KΩ
6
2
R3
Resistor
RJ-0.25-10KΩ
1
3
R4～R7,R16,R28,R31
Resistor
0805-1KΩ
7
4
R8,R12,R14,R15,R17～R20
Resistor
0805-2KΩ
8
5
R9,R10,R13,R29
Resistor
0805-200Ω
4
6
R21
Resistor
0805-7.5KΩ
1
7
R22
Resistor
0805-3KΩ
1
8
R26
Resistor
0805-100Ω
1
9
R27
Resistor
RJ-0.25-30KΩ
1
10
R30
Resistor
0805-510Ω
1
11
C1,C2,C5～C8,C15～C17,C25
Capacitor
0805-0.1μF
10
12
C3
Capacitor
0805-2200pF
1
13
C4
Capacitor
1210-10μF
1
14
C9～C12
Capacitor CD11-25V-470μF
4
15
C13,C14
Capacitor CD11-16V-2200μF
2
16
C18
Capacitor
1
17
C19,C20
Capacitor CA45D-50V--4.7μF
2
18
C21～C24
Capacitor CA45D-25V--1μF
4
19
U1,U2
Integrated circuit LM358D
2
20
U3,U4
Integrated circuit MC7805CT
2
21
U5
Integrated circuit SN74AHCT00
1
22
U6
Integrated circuit 7812CT
1
23
U7,U11
Integrated circuit TLP521-1
2
24
T1
Inductor
1
7-5
W3
QUANTITY
0805-0.01μF
TVA1421-01
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Parts List of power board
ITEM NO.
CODE
DESCRIPTION AND SPECIFICATION
QUANTITY
25
U8
Integrated circuit TLP521-2
1
26
U9
Integrated circuit MAX232CSE
1
27
U10
Integrated circuit MAX489CSD
1
28
U12
Integrated circuit SN74LVC1G3157
1
29
K1,K2
Relay
JW1Afsn-DC12V
2
30
Q1～Q5,Q7,Q8
Triode
S8050
7
31
Q6
Triode
S8550
1
32
B1,B2
Rectifier Bridge
33
D1,D2,D3,D10
Diode
1N4148
4
34
D4,D5
Diode
1N5339B
2
35
D6,D7
Diode
1N4002
2
36
D8
Diode
1N5350B
1
37
D9
Diode
HZ11B1
1
38
DC1
DC/Dc power module
39
J1
Socket
ME040-50802
1
40
J2,J6
Connector Receptacle XY2.5-3
2
41
J3
Connector Receptacle XY2.5-4
1
42
J4
Connector Receptacle XY2.5-2
1
43
J5
Connector Receptacle XY4-4
1
44
J7
Connector Receptacle XY2.5-10
1
45
J8
DC-2-16（vertical）
1
46
J9
Connector Receptacle ME040-50803
1
47
F1
Fuse
T 800mAL/250V
1
48
F2
Fuse
T 400mAL/250V
1
GBU10005
F0505S-1W
2
1
7-6
W3
J9
+12
3
2
1
3PIN
BLUE LED
10k
ctr_bat R23
J1
2PIN
Heater
J2
1
2
3
2
1
+12
K2A
D10
K1B
JW1aFSN
K1A
+12
JW1aFSN
D3
1N4148
+12
R25
10k
Q4
8050
R28
T1
Q6
8550
R26
100
Q8
1K
R31
8050
1k
R6
Q2
D2
1N4148
R16
1K
C1
3
+12
R1
C3
U1A
1
R4
6
5
2
3
1k
R20
2K
R22
3K
+5
LM358
R19
2K
R21
7.5K
+12
10k
222
VCC +5
R18
2K
R17
2K
VCC
104
2
ctr_relay
C18
103
bat_voltage
ctr_ssr
R3
10k
R27
30k
ctr_led
C2
104
8050
Q3
D1
1N4148
8050
bat+
D9
HZ11B1
Q5
R7
ctr_bat
1K
J8
16PIN
+5
C4
10uF
R2
10K
U2A
LM358
U2B
LM358
Q1
8050
2
1
+5
J5
4
3
2
1
VCC
1
3
J3
4PIN
AC
-
+
B1
AC
4
3
2
1
1
2
bat+
+
-
J4
Va
Vin
U3
MC7805CT
C9
470uF
1
U6
MC7812CT
IN
Vin
U4
MC7805CT
C11
470uF
1
1
R11
10K
C10
470uF
R15
2K
R14
2K
R12
2K
+5A
C20
4.7uF Q7
8050
C15
104
C5
104
BATTERY
1
2
+5A
+5A
200
R29
5
7
1N4002
1N4002
D7
D6
GBU10005
AC
AC
B2
GBU10005
3
4
Va
Vout+
bat+
VIN
Vout-
DC1
GND
H0505S-1W
U8A
TLP521/2
U8B
TLP521-1
U11
TLP521-1
U7
T400mA
F2
F1
T800mA 4
VCC
C19
4.7uF 2
pwr_state
4PIN
TRANS-OUT
C25
3
104
SN74AHCT00
U5A
heater_state
R5
1K
VCC
1
7
R8
2K
R9
200
R10
200
R13
200
TLP521/2
C21
1uF
+5V
+5V
OUT
+5A
3
3
3
C13
2200uF
C14
2200uF
C12
470uF
C16
104
C6
104
C7
104
C8
104
VS-
VCC
+12
D4
1N5339B
D8
1N5350B
104
C17
C23
1uF
D5
1N5339B
4
5
14
7
13
8
6
+5
+5A
+5A
14
13
12 A
11 B
10 Z
9 Y
8
C2+
C2T1OUT
T2OUT
R1IN
R2IN
VCC
NC
A
B
Z
Y
NC
5
2
SN74LVC1G3157
B1VCC
B2
A
S GND
MAX489CSD
U12
NC
RO
/RE
DE
DI
GND
GND
MAX232
U10
C1+
C1T1IN
T2IN
R1OUT
R2OUT
C22
1uF U9
2
VS+
1
3
11
10
12
9
1
2
3
4
5
6
7
3
1
4
6
C24
1uF
1
2
3
4
5
6
7
8
9
10
J7
RS232
7-7
JW1aFSN
1N4148
K2B
+5
JW1aFSN
R24
10k
3
2
1
1K
R30
510
SCHEMATIC DIAGRAM FOR POWER BOARD
GND
2
GND
2
GND
2
3PIN
SSR ctr
J6
3PIN
Bell
8050
W3
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
EDITION/REVISION A/0
SERVICE MANUAL FOR INFANT RADIANT WARMER
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
PARTS LOCATION DIAGRAM OF MAIN BOARD 1
7-8
W3
SERVICE MANUAL FOR INFANT RADIANT WARMER
PARTS LOCATION DIAGRAM OF MAIN BOARD 2
7-9
W3
EDITION/REVISION A/0
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Parts List of main board
ITEM NO.
CODE
DESCRIPTION AND SPECIFICATION
QUANTITY
1
R1,R2
Resistor
0805-1KΩ
2
2
R3,R4,R5
Resistor
RJ-0.25-20KΩ
3
3
R6,R7,R10～R13,R16,R17
Resistor
0805-10KΩ
8
4
R8,R9,R14,R15
Resistor
RJ-0.25-10KΩ
4
5
RG1
Resistor
Group RAA09103G-1/8-10KΩ
1
6
C1～C17,C21,C22
Capacitor
0805-0.1μF
19
7
C18～20,C25～C34,C41,C42
Capacitor
0805-0.01μF
15
8
C23,C24
Capacitor CA45B-16V-10μF
2
9
C35,C36
Capacitor CD11-16V-220μF
2
10
C37～C40
Capacitor
4
11
U1
Integrated circuit SN74AHCT139D
1
12
U2
Integrated circuit SN74AHCT32
1
13
U3,U4
Integrated circuit SN74LVC1G3157DBVR
2
14
U5,U6
Integrated circuit TLV2544CD
2
15
U7
Integrated circuit DS1230Y-100
1
16
U8
Integrated circuit SN74AHC273DW
1
17
U9
Integrated circuit SN74AHCT04
1
18
U10～U12
Integrated circuit SN74LS244
3
19
U13
Integrated circuit
SN74AHCT74A
1
20
U14,U15
Integrated circuit
TPS3824-50
2
21
U16
Integrated circuit AT89C51ED2-SLSIM
1
22
U17
Integrated circuit SN74AHCT373DW
1
23
U18
Integrated circuit DS12C887
1
24
U19
Integrated circuit AT89C4051-24PU
1
25
JZ1,JZ2
crystal oscillator
2
26
L1～L6
Inductor
27
J1
Group leads
28
J2
DC-2-16（vertical）
1
29
J4
Connector Receptacle XY2.5-6
1
30
J5
single row , male
1
0805-22pF
CCS11.0592MHz
NL3225-220/1210
PJ-2×40（10 contacts）
DPCZ-60T（9contacts）
6
1
7-10
W3
+5
2
C9
104 5
6PIN
2PIN
J4
J3
A14
A15
envi
VDD
GND
RST
RST
wdi
R3
20K
+5
3
1
+5
R4
20K
rst
SCHEMATIC DISGRAM OF MAIN BOARD
C40
22pF
10
/RD 19
/WR 18
rst
JZ2
21
11.0592M20
CSTART 17
16
+5
35
15
14
43
42
41
40
39
38
37
36
104
104
C10
AT89C51ED2-P44
P3.7/RD
P3.6/WR
RST
XTAL1
XTAL2
EA/VP
P3.5/T1
P3.4/T0
P3.3/INT1
P3.2/INT0
P0.0/AD0
P0.1/AD1
P0.2/AD2
P0.3/AD3
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
U16
TLV2544
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
103
C41
P3.0/RXD
P3.1/TXD
ALE/P
PSEN
C25
103
A8
A9
A10
A11
A12
A13
A14
A15
VCC
R12
10K
+5
/RD
C4
104
VCC
ADCS
LEDCS
CLK
DIN
DOUT
wdi
S0
10K
10K
C23
10uF
11 RXD
13 TXD
33 ALE
32
24
25
26
27
28
29
30
31
2
3
4
5
6
7
8
9
R9
R8
16 ADCS
15
14
13
12
VCC
11
10 CSTART
9
+5
2
5
VCC
SN74LVC1G3157
B1VCC
B2
A
S GND
U4
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
P2.7/A15
VCC
SDO
/CS
SDI
REFP
SCLK
REFM
EOC/(-INT)
FS
VCC
/PWDN
A0
GND
A1
/CSTAR
A2
A3
U5
C2
3
1
4
6
CS4
CS2
CS3
CS5
RXD1
RXD2
C3 RXD
104 S0
12
11
10
9
CS2
D0
D1
D2
D3
D4
D5
D6
D7
ALE
D0
D1
D2
D3
D4
D5
D6
D7
4
5
6
7
8
9
10
11
12
1
1
11
3
4
7
8
13
14
17
18
10
9
8
7
6
5
4
3
25
24
21
23
2
26
1
+5
WE
OE
CE
Q0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
104
C11
R/W
AS
CS
IRQ
RST
DS
VCC
SQW
104
DS12C887
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
GND
MOT
U18
SN74AHC373
C12
OE
LE
D0
D1
D2
D3
D4
D5
D6
D7
U17
9
5
4
15 /WR
14 ALE
13 CS1
19 RTC_INT
18 /rst
17 /RD
24
23
D4
D5
D6
D7
D0
D1
D2
D3
D0
D1
D2
D3
R13
10K
VCC
3
4
7
8
13
14
17
18
8
6
9
7
5
3
18
16
14
12
18
16
14
12
CLK1 11
1
/rst
D0
D1
D2
D3
D4
D5
D6
D7
SN74AHCT32
U2C
SN74AHCT32
U2B
VCC
A0
A1
A2
A3
A4
A5
A6
A7
27 /WR
22 /RD
20 A15
VCC
2
5
6
9
12
15
16
19
D0
D1
D2
D3
D4
D5
D6
D7
VCC
11
12
13
15
16
17
18
19
28
/WR 10
CS3
/RD
CS4
VCC
D0
D1
D2
D3
D4
D5
D6
D7
VCC
G1
104
C5
3
DS1230Y-100
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
U7
104
C21
SN74AHCT32
U2A
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
2
1
104
C6
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
+5
G
104
C16
SN74LS244
+5
VCC
A1
A2
A3
A4
SN74LS244
U12B
G
Y1
Y2
A1
Y3
A2
Y4
A3
A4
Y1
Y2
Y3
Y4
U12A
G
A1
A2
A3
A4
SN74LS244
Y1
Y2
Y3
Y4
U11A 104
C7
SN74AHC273DW
CLK
CLR
D1
D2
D3
D4
D5
D6
D7
D8
U8
CLK1
G2
11
13
15
17
19
2
4
6
8
1
2
4
6
8
1
2
5
6
9
12
15
16
19
+5
10K
RG1
key5
key6
key7
key8
key1
key2
key3
key4
1
104
11
13
15
17
19
U11B
Y1
Y2
Y3
Y4
led_alm
VCC
SN74LS244
A1
A2
A3
A4
2
4
+5
G
SN74AHC04
SN74AHC04
U9A
U9B
C1
1
2
3
4
5
6
7
8
9
9
7
5
3
ctr_ssr
ctr_relay
+5
11
13
15
17
19
2
4
6
8
9PIN
J5
ctr_led
RENB
WENB
TXD2
TO-RXD
1
C27
103
C28
103
C29
103
C30
103
C31
103
C32
103
C33
103
Y1
Y2
Y3
Y4
Y1
Y2
Y3
Y4
104
C22
C13
1045
2
SN74LS244
A1
A2
A3
A4
G
SN74LS244
U10B
A1
A2
A3
A4
G
U10A
VCC
C34
103
key1 key2 key3 key4 key5 key6 key7 key8
G1
heater_state
power_state
G2
led
WENB
RENB
3
1
2
3
4
5
6
7
8
9
10
ctr_ssr
bell
led_pwr
VCC
VCC
VCC
10K
VCC
clear
R16
10K
10K
103
C42
1
2
3
C14 ADC2_int 4
104
5
skin2
6
7
8
R15 10K
R14
R11 10K
VCC
R10
C39
22pF
C38
22pF
3
1
1
TXD1 2
RXD1 3
JZ1
4
11.0592M
5
6
7
8
9
10
RST
RST
U15
TPS3824-50
VDD
GND
9
7
5
3
18
16
14
12 RXD2
TO-RXD
TLV2544
L1
L2
L3
L4
L5
L6
VCC
C36
220uF
ctr_led
+5
VCC
16
15
14
13
VCC
12
11
10 cstart2
9
20
19
VCC
18
17
16 cstart2
15
14
13
12
11
VCC
SDO
/CS
SDI
REFP
SCLK
REFM
EOC/(-INT)
FS
VCC
/PWDN
A0
GND
A1
/CSTAR
A2
A3
U6
VCC
P1.7
P1.6
P1.5
P1.4
P1.3
P1.2
P1.1
P1.0
P3.7
104
C15
R1
1K
C35
220uF
AT89C4051
RST
RXD
TXD
XTAL2
XTAL1
/INT0
/INT1
T0
T1
GND
U19
R17
10K
+5
bat_voltage
ctr_bell
ctr_bat
heater_state
power_state
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
VCC
C24
10uF
C8
104
C26
103
U13B
SN74LS74A
VCC
16PIN
J2
clear
C37
22pF
R7
10K
D0
D1
D2
D3
D4
D5
D6
D7
RTC_INT
ADC_INT
VCC
/rst
R6
10K
R5
20K
VCC
2
5
VCC
SN74LVC1G3157
1
2
3
4
5
6
7
8
Y0
Y1
Y2
Y3
SN74LS139A
G
A
B
U1B
B1VCC
B2
A
S GND
U3
15
14
13
DOUT
DIN
CLK
ADC_INT
3
1
4
6
A12
A13
bat_voltage
C20
103
C18
103
CS1
TXD1
TXD2
TXD
S0
C19
103
4
5
6
7
104
C17
U14
TPS3824-50
1K
skin2
skin1
VCC
Y0
Y1
Y2
Y3
SN74LS139A
G
A
B
+5
VCC
R2
6
5
4
3
2
1
1
2
1
2
3
U1A
4
WDI
7-11
9
8
7
6
5
4
3
2
1
4
WDI
ctr_relay
9
8
Q
Q
PRE
CLK
D
CLR
W3
LEDCS
DI N
CLK
led_alm
led_pwr
10
11
12
13
J1
10PIN
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
SCHEMATIC DIAGRAM OF DISPLAY BOARD 1
7-12
W3
SERVICE MANUAL FOR INFANT RADIANT WARMER
SCHEMATIC DIAGRAM OF DISPLAY BOARD 2
7-13
W3
EDITION/REVISION A/0
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Parts list of diplay board
ITEM NO.
CODE
DESCRIPTION AND SPECIFICATION
QUANTITY
1
R1,R2
Resistor
0805-24KΩ
2
2
R3,R4
Resistor
0805-10KΩ
2
3
R5,R6
Resistor
0805-1 KΩ
2
4
C1,C2
Capacitor
5
C3,C4
Capacitor CA45D-16V-10μF
2
6
Q1,Q2
Triode
2
7
U1,U2
Integrated circuit MAX7221CGW
2
8
J1
Double row, male
1
9
H1
LED
Φ5 red
1
10
H2,H15,H16,H17
LED
Φ5 green
4
11
H4～H9
LED
ENA-L10ZAD
6
12
H10～H12
LED
ENA-L10ZAG
3
13
H13
LED （(yellow and green)）
1
14
H14
LED
1
15
V1
Nixietube
NET-5631AG
1
16
V2
Nixietube
NET-3631AG
1
17
V3
Nixietube
NEQ-2841AG
1
0805-0.1μF
8050
SPCJ-2×60（10contacts）
ENA-B10ZAG
2
7-14
W3
J1
10PIN
10
9
8
7
6
5
4
3
2
1
VCC
led_alm
led_pwr
+5
VCC
U1
C1
104
C3
10uF
V+
SA
SB
SC
SD
SE
SF
SG
SDP
DOUT
DIG8
CON
VCC
19
14 SA1
16 SB1
20 SC1
23 SD1
21 SE1
15 SF1
17 SG1
22 SDP1
24 next
8
4
SA1 11
7
SB1
SC1
4
2
SD1
SE1
1
SF1 10
SG1
5
SDP1 3
V1
A
B
C
D
E
F
G
DP
NET-5631A
V2
A
B
C
D
E
F
G
DP
NET_3631A
baby
DIG.1
DIG.2
DIG.3
NC
DIG.1
DIG.2
NC
DIG.3
set
9
DIG3
DIG2
12 DIG1
8
6
DIG5
12 DIG4
9
DIG6
6
8
DIG14
environment bat_full/charge
H15
LED
led_alm
led_pwr
R3
10k
R4
10k
set_alm
H5
H16
LED
check_alm
SC1
H6
H17
LED
Q1
8050
Q2
8050
1
2
H1
LED
alarm led
H4
K A
K A
3
4
+5
R5
1K
+5
R6
1K
H9
deviation_alm
DIG12
power alarm led
H8
sensor _alm over_alm
H7
SCHEMATIC DIAGRAM OF DISPLAY BOARD
7-15
R1
24K
18
LEDCS 12
1
DIN
13
CLK
DIG14 5
DIG6 10
DIG5 3
DIG4 7
DIG3 6
DIG2 11
DIG1 2
9
RST
CS
DIN
CLK
DIG7
DIG6
DIG5
DIG4
DIG3
DIG2
DIG1
GND
MAX7221
SA1 11
7
SB1
4
SC1
2
SD1
SE1
1
SF1 10
SG1
5
SDP1 3
manual
H13
LED2
SDP2
SA2
SC2
SF2
SC2
DIG12
H14
LED10
2
1
A K
A K
4
3
2
1
A K
A K
4
3
2
1
A K
A K
4
3
pre_warm
H12
H3
LED
SE2
SD2
SE2
SF2
SB2
SG2
SDP2
20
H2
LED
DIG11
18
19
H11
DIG8
17
H10
9
DIG9
16
DIG13
8
DIG10
12 DIG7
6
14
15
C2
DIG1
DIG2
DIG3
DIG4
13
2
1
SB1
12
A K
A K
2
1
A K
A K
4
3
10
4
3
SA1
9
11
V3
A
B
C
D
E
F
G
DOP
NEQ-2841A
SDP2
SA2
SD2
SB2
8
104
C4
SA2 11
7
SB2
SC2
4
2
SD2
SE2
1
SF2 10
SG2
5
SDP2 3
6
7
VCC
VCC
19
14 SA2
16 SB2
20 SC2
23 SD2
21 SE2
15 SF2
17 SG2
22 SDP2
24
8
4
4
5
10uF
V+
SA
SB
SC
SD
SE
SF
SG
SDP
DOUT
DIG8
CON
3
U2
RST
CS
DIN
CLK
DIG7
DIG6
DIG5
DIG4
DIG3
DIG2
DIG1
GND
MAX7221
2
R2
24K
18
LEDCS 12
1
next
13
CLK
DIG13 5
DIG12 10
DIG11 3
DIG10 7
DIG9 6
DIG8 11
DIG7 2
9
W3
1
2
1
A K
A K
4
3
2
1
A K
A K
4
3
2
1
A K
A K
4
3
EDITION/REVISION A/0
SERVICE MANUAL FOR INFANT RADIANT WARMER
SB2
SC2
SA2
SD2
SE2
SF2
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
PARTS LOCATION DIAGRAM of LED board
Parts List of LED board
ITEM NO.
CODE
DESCRIPTION AND SPECIFICATION
QUANTITY
1
R1～R40
Resistor 180Ω±1%
40
2
H1～H160
Blue light LED
160
3
J1
XY4-6S Connector Receptacle
4
LED base
RL804DBC030-0
1
160
7-16
W3
W3
7-17
R21
180
+15C
R1
180
+15A
H85
LED
H86
LED
H87
LED
H88
LED
H81
LED
H82
LED
H83
LED
H84
LED
H8
LED
H4
LED
R22
180
H7
LED
H6
LED
H2
LED
H3
LED
H5
LED
H1
LED
R2
180
R23
180
R3
180
SCHEMATIC DIAGRAM OF LED BOARD
H92
LED
H91
LED
H90
LED
H89
LED
H12
LED
H11
LED
H10
LED
H9
LED
R24
180
R4
180
H96
LED
H95
LED
H94
LED
H93
LED
H16
LED
H15
LED
H14
LED
H13
LED
R25
180
R5
180
H100
LED
H99
LED
H98
LED
H97
LED
H20
LED
H19
LED
H18
LED
H17
LED
R26
180
R6
180
H104
LED
H103
LED
H102
LED
H101
LED
H24
LED
H23
LED
H22
LED
H21
LED
R27
180
R7
180
H108
LED
H107
LED
H106
LED
H105
LED
H28
LED
H27
LED
H26
LED
H25
LED
R28
180
R8
180
H112
LED
H111
LED
H110
LED
H109
LED
H32
LED
H31
LED
H30
LED
H29
LED
R29
180
R9
180
H116
LED
H115
LED
H114
LED
H113
LED
H36
LED
H35
LED
H34
LED
H33
LED
R30
180
R10
180
H120
LED
H119
LED
H118
LED
H117
LED
H40
LED
H39
LED
H38
LED
H37
LED
R31
180
+15D
R11
180
+15B
H124
LED
H123
LED
H122
LED
H121
LED
H44
LED
H43
LED
H42
LED
H41
LED
R32
180
R12
180
H128
LED
H127
LED
H126
LED
H125
LED
H48
LED
H47
LED
H46
LED
H45
LED
R33
180
R13
180
H132
LED
H131
LED
H130
LED
H129
LED
H52
LED
H51
LED
H50
LED
H49
LED
R34
180
R14
180
H136
LED
H135
LED
H134
LED
H133
LED
H56
LED
H55
LED
H54
LED
H53
LED
R35
180
R15
180
H140
LED
H139
LED
H138
LED
H137
LED
H60
LED
H59
LED
H58
LED
H57
LED
R36
180
R16
180
H144
LED
H143
LED
H142
LED
H141
LED
H64
LED
H63
LED
H62
LED
H61
LED
R37
180
R17
180
H148
LED
H147
LED
H146
LED
H145
LED
H68
LED
H67
LED
H66
LED
H65
LED
R38
180
R18
180
H152
LED
H151
LED
H150
LED
H149
LED
H72
LED
H71
LED
H70
LED
H69
LED
R39
180
R19
180
H156
LED
H155
LED
H154
LED
H153
LED
H76
LED
H75
LED
H74
LED
H73
LED
R40
180
+
+1
+15
+1
H80
LED
LED
H79
H78
LED
H77
LED
H160
LED
H159
LED
H158
LED
H157
LED
R20
180
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
PARTS LOCATION DIAGRAM OF LED BOARD
7-18
W3
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
Parts List of LED BOARD
ITEM NO.
CODE
DESCRIPTION AND SPECIFICATION
1
C1～4,C13～C16
Capacitor CT4-0.1μF-63V
8
2
C5～C8
Capacitor CD11-470μ-35V
4
3
C9～C12
Capacitor CD11-2200μ-25V
4
4
B1
Transistor GBU10005
1
5
U1～U4
Integrated circuit MC7815CT
4
Heat sink DSJ-55
4
1
6
7
F1
Fuse
T1.6AL/250V
8
J1
Connector, receptacle XY4-2
1
9
J2
Connector, receptacle XY4-6
1
7-19
W3
QUANTITY
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0
U1
MC7815
1
C1
0.1uF
Vin
+15V
C5
C9
2200uF
2
1
2PIN
F1
U2
MC7815
B1
3
AC
+
1
FUSE1
4
-
Vin
+15V
C6
C10
2200uF
470uF
GBU1005
U3
MC7815
1
C3
0.1uF
+15B
3
+15C
Vin
+15V
3
C7
C11
2200uF
U4
MC7815
1
C4
0.1uF
C15
0.1uF
GND
2
470uF
C14
0.1uF
GND
2
AC
2
1
C2
0.1uF
C13
0.1uF
GND
2
470uF
J1
+15A
3
+15D
Vin
+15V
C8
3
C12
2200uF
GND
2
470uF
C16
0.1uF
J2
+15A
+15B
+15C
+15D
1
2
3
4
5
6
6PIN
SCHEMATIC DIAGRAM OF LED BOARD
7-20
W3
XZ2
XZ13
2
5
X2'
3
6
To controller
4
2
1
X3
1 XZ12-2
XZ12-2
F3
2
1
XZ7
X2
6 XZ4
3 XZ8
5
4
XZ1
XZ3
XZ11
XZ5
2
XZ19
XZ6
XZ20
D
1
XZ12-1
XZ13
2
S3
3
1
X1
T
XZ5
XZ3
XZ7
3
4
1
XZ16
2
XZ18
XZ16
XZ9
S1
S2
V
XZ6
XZ4
XZ8
XZ15
F1
XZ17
XZ2
XZ18
3
XZ1
XZ20
1
XZ11
XZ10
2
XZ17
XZ15
2
WIRING DIAGRAM OF VHA STAND
3
7-21
XZ19
2
XZ23
1 2
X3'
XZ24
XZ21
XZ25
T:Power transformer R50
V:Rectifier bridge GBU10005
D1、D2：Diode 1N5401
S1:Power switch
X1:Socket
F1,F2:F fuse 6.3AH/250V
F3:Wiring fuse F103
（T 800mAL/250V）
X2:Connector ZJLJQ-6
M:JC35A-200 Electric handspike
S2、S3:Micro switch Z15G1306
S4、S5: Micro switch VSI0N021C2
XZ26
1
2
1
XZ22
W3
1
F2
SERVICE MANUAL FOR INFANT RADIANT WARMER
EDITION/REVISION A/0