Ultrasound Technologies Ltd
Fetatrack 360
Service Manual
Issue 1
Ultrasound Technologies Ltd
Contents
INTRODUCTION ...................................................................................................... 3
Specification ........................................................................................................................................................ 4
User Configuration ............................................................................................................................................. 5
SAFETY IN USE....................................................................................................... 5
Special Precautions ............................................................................................................................................. 5
Electrical Shock Hazard.................................................................................................................................... 5
Explosion Hazard.............................................................................................................................................. 5
Handling the Delicate Transducers ................................................................................................................... 6
Symbols used .................................................................................................................................................... 7
REFERENCE ........................................................................................................... 8
FT360 front panel controls................................................................................................................................. 8
Recorder On/Off ............................................................................................................................................... 8
Volume Up........................................................................................................................................................ 8
Volume Down ................................................................................................................................................... 8
US1 / US2 Transducer Select ........................................................................................................................... 8
Toco Zero ......................................................................................................................................................... 8
Indicators and Connectors ................................................................................................................................. 9
Power on Indication .......................................................................................................................................... 9
RS232 output .................................................................................................................................................... 9
Remote (patient) Event Marker......................................................................................................................... 9
Probe Connection.............................................................................................................................................. 9
Internal Layout ................................................................................................................................................. 10
Dismantling Procedure.................................................................................................................................... 10
Circuit Description ........................................................................................................................................... 11
Power supply Circuit....................................................................................................................................... 11
Ultrasound Circuit........................................................................................................................................... 12
Audio Amplifier.............................................................................................................................................. 12
Signal Pre-processing...................................................................................................................................... 13
Toco Circuit .................................................................................................................................................... 13
Microprocessor Circuit ................................................................................................................................... 14
Printer Interface .............................................................................................................................................. 14
Maternal SpO2................................................................................................................................................ 15
Fetal SpO2 ...................................................................................................................................................... 15
Fetal ECG Circuits.......................................................................................................................................... 15
Test Procedures................................................................................................................................................. 16
Introduction..................................................................................................................................................... 16
Performance Checks ....................................................................................................................................... 16
Basic Troubleshooting .................................................................................................................................... 18
Parts lists and Drawings................................................................................................................................... 19
©Ultrasound Technologies Ltd
Issue 1 2006
Page 2
Ultrasound Technologies Ltd
This booklet explains the operation and service of the FETATRACK 360
Intrapartuml Cardiotocograph. Care has been taken during the design and
manufacture of this product so that it meets all of the current safety
standards set down by IEC60601-1 .
If you require assistance understanding any part of this document, or have
any questions relating to the operation of the FETATRACK 360 please
contact:
Ultrasound Technologies Ltd
Lodge Way
Caldicot
NP26 5PS
UK
Tel
+44 (0) 1291 425425
Fax
+44 (0) 1291 427093
EMAIL service@doppler.co.uk
This service manual contains circuit descriptions, diagrams, parts and spares
lists is available for the FETATRACK 360 that are correct at the time of
printing. Due to continuous improvement certain sections may differ in
newer units if you have any doubt please contact the address above.
To maintain the FETATRACK 360’s performance it is recommended that it
be included in a periodic maintenance programme.
©Ultrasound Technologies Ltd
Issue 1 2006
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Ultrasound Technologies Ltd
Specification
Size:
Weight:
Voltage:
Safety:
350 x 370 x 140 mm
8 kg
100-240 Volts AC 50/60 Hz
Complies with EN60101-1
ULTRASOUND
Type:
Operating Frequency
Power Output
Signal Processing
Continuous Doppler
2MHz±2% and 1.8MHz ±2%
5 mW/sq cm max. SATA
Software AUTOCORRELATOR
DIRECT FECG (Intra models only)
Signal Range
40µV-5mV
Input Noise:
<1,4µV p-p
CMRR:
>125dB
ALARMS
Low Level:
High Level:
60 - 120 BPM, Adjustable in steps of 5 BPM
160 - 200 BPM, Adjustable in steps of 5 BPM
EXTERNAL UTERINE ACTIVITY
Type:
Flat faced Tocodynamometer
Signal Range:
0 - 99 relative contractions strength
INTERNAL UTERINE ACTIVITY (Intra models only)
Intrauterine Pressure: Type optional
Signal Range
0 - 99 mmHg
EVENT MARKER
Hand held, person operated
PRINTER
Type:
Print Speed:
Paper Size:
FHR Sensitivity:
UA Sensitivity:
IUP Sensitivity:
Thermal Array 8 dots/mm
1,2 and 3 cm/min
145 mm x 15 mtr
20 or 30 BPM/cm
30/cm
30mmHg/cm
DISPLAY/PRINTER RANGES
FHR Range:
30 - 250 BPM
FHR Accuracy:
+/- 1 BPM
UA Range:
0 - 99 units
FspO2 Range:
0 – 100%
OXIMETER
Oxygen Saturation
(%FSpO2)
Pulse Rate Range
0% to 100%
30 to 300 bpm
Accuracy
Blood Oxygen Saturation
Pulse Rate
Displays
Graphical Displays
Pulse Strength
For specification, see footnote “a”
30 to 300 bpm; ±3 bpm
3-digit
Graphic Bargraph
Measurement Wavelengths and Output Power
Red
661 nanometers @ 3 mw nominal
Infrared
905 nanometers @ 3 mw nominal
“a”. Calibration of the FetalSAT System was accomplished through carefully controlled hypoxia studies in a laboratory animal model
to establish the calibration coefficients. For specifications, see FetalSAT Specification Supplement (available upon request).
©Ultrasound Technologies Ltd
Issue 1 2006
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Ultrasound Technologies Ltd
User Configuration
Firstly connect the AC supply cord.
Facilities are provided to allow the setting of the FETATRACK 360 to meet
individual requirements. The functions which may be adjusted by the user are date,
time and alarm settings, and these are all accessed from the set-up menu which may
be accessed at power on.
Hold down the UA0 button whilst turning on the FETATRACK 360, to enter the
calibration mode . The display will show Entering Calibration Mode ................
After a few seconds the display will show the menu options available. To step through
the menu press UA0 repeatedly until the curser is over the option you wish to change.
To alter any value, use the volume control keys to achieve the desired setting. You
can move backwards on the screen by pressing the recorder button.
To exit the calibration mode use UA0 button to move the cursor to exit on the screen
and pressUA0 again. This will restart the system and return to normal operating
mode.
Special Precautions
Your FETATRACK 360 Antenatal Cardiotocograph has been designed for electrical
safety. All the safety and operating instructions should be read before operating the
FETATRACK 360. Failure to do so could result in injury to the user, patient or
damage to the System and accessories.
Electrical Shock Hazard
Do not defeat the grounding integrity of this System. Protection against electrical
shock, in the event of failure of basic insulation, is provided by the connection of the
chassis to the safety ground. Safety grounding occurs only when the 3-wire cable and
plug provided with the system are connected to a properly grounded receptacle.
Do not remove the System cover. The System should be serviced by trained and
qualified personnel only. Contacting the hazardous voltages within the System could
cause serious injury.
Do not use the System if the power cord has any cuts or openings.
Do not use the transducer if the cable has any cuts or openings.
Do not use the transducer if the transducer face is cracked or chipped.
Do not immerse the transducer cable connectors in any liquids. Electrical shock
could result.
Should the electrical safety fuses have to be replaced, use only fuses of the same type
and rating.
Explosion Hazard
Do not operate or use this system in the presence of flammable anaesthetics or gases
as it could lead to explosion.
©Ultrasound Technologies Ltd
Issue 1 2006
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Ultrasound Technologies Ltd
Handling the Delicate Transducers
The transducers are delicate parts of the ultrasound system and should be treated with
care. The delicate crystals in the transducer may crack and render the transducer
unusable if the transducer is subject to shock. Room temperature liquids should be
used for cleaning. Never use alcohol or mineral oil as an acoustic coupling agent as
transducer or cable damage could occur.
©Ultrasound Technologies Ltd
Issue 1 2006
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Ultrasound Technologies Ltd
Symbols used.
The following symbols are used on the FETATRACK 360 and are in accordance with
IEC60601-1 : 1990.
Where they are associated with the connection of external equipment, that equipment
in all cases must meet the relevant safety standard.
-
Alternating Current
-
Power On (Connection to the mains)
-
Power Off (Disconnection from the mains)
-
Type B Equipment
-
Type BF Equipment
-
Attention: consult accompanying documents
©Ultrasound Technologies Ltd
Issue 1 2006
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Ultrasound Technologies Ltd
FETATRACK 360 front panel controls
The front panel keyboard area contains 6 keys used to control the operation of the unit, they
are all indicated by Icons to aid language variations.
Set Uterine
Pressure to Zero
Maternal & Fetal
Electrocardiograph &
Ultrasound 2
Transducers
Input
Ultrasound
Volume
Decrease
Audio Selector
for Ultrasound
1&2
Ultrasound
Volume Increase
Internal & External
Uterine Pressure
Transducers Input
Printer On/Off &
Speed Control
Ultrasound 1
Transducer
Input Socket
Power On
Indicator
Printer Door Release
Lever
Recorder On/Off and speed change
This key is used to control the operation of the recorder. Press once and the chart recorder will
start, each consecutive short press will change the speed . Press and hold the key will stop the
recording.
Volume Up
This key is used to increase the audio volume level, or in configuration mode to change user
options.
Volume Down
This key is used to decrease the audio volume level.
US1 / US2 Transducer Select
Pressing this key changes the selected probe from US1 to US2 for volume output. This is used
when the unit is in Twins mode with two US channels for listening to either of the two fetus.
Toco Zero
This key zeros the toco trace to the selected baseline.
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Ultrasound Technologies Ltd
Inputs / outputs and displays
Power on Indication
The green LED associated with the above symbol when bright indicates that power is
connected to the apparatus.
RS232 output
This output is for the connection of an external computer for data transfer. The maximum
voltage that can be applied to this output is 15VDC.
WARNING: Any external equipment connected to this output must meet the relevant safety
standard.
Remote Event Marker
Connection of an external event mark switch allows the patient to indicate events by printing
an arrow in the gap between the FHR and UA traces. The maximum voltage that can be
applied to this output is 15VDC.
Probe Connections US1, US2, Toco
This is for the connection of approved Doppler and toco transducers. The maximum voltage
that can be applied to this output is 15VDC.
©Ultrasound Technologies Ltd
Issue 1 2006
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Ultrasound Technologies Ltd
Internal Layout
With the top cover removed and the front panel facing you, there is one large printed
circuit board fixed to the base of the monitor this contains all the power supply circuits,
all the control circuits and the Ultrasound, Toco and digital signal processing circuits.
In addition, there is the optional ECG card and Maternal Pulse Oximetry card.
Mounted on the front panel are the input connectors, LCD graphic display module and user
interface keyboard.
Dismantling Procedure
Note: Before disassembling the unit, unplug the transducers, accessories cable (if
present), and the power cord from the instrument.
To remove the Top Cover, remove the four screws around the edge on the bottom of the
unit. The Top Cover can now be removed taking care to disconnect the earth bonding
cable connecting the lid to the base.
The display module can be removed from the front panel by careful removal of the 4
screws holding the part in place.
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Ultrasound Technologies Ltd
Circuit Description
Power supply Circuit
The 240/110 VAC supply enters the FETATRACK 360 via an IEC double fused inlet /
mains filter and switch and is fed to a torroidal transformer. The input supply voltage is
stepped down to a nominal 24 VAC, connected to the board via J17 and is then bridge
rectified by D24, smoothed by C147.
Regulated Supplies
The voltage regulators (U31 and U32) are fed from D24 at a voltage of around 36VDC. These
oscillate at approximately 120 KHz transferring pulses of current into L10 and L11
respectively. The output of inductor is fed back directly into U31 (32) which at pin 1 is
reference comparator and alters the pulses transferred into the inductor to obtain a stable
voltage output. The output of U31 is 5V DC and U32 is 15V DC. Pulses of current in to
inductor L11 are also taken into a charge pump to provide a stable –15V DC after regulator
transistor Q14.
D25 also supplies current to the printhead and motor drive circuits via Q13 and U33 which
provides a stable 24V DC .
Printhead and Motor Drive Supply
The printhead requires pulses of current equalling 10A but for a very small amount of time,
therefore current is taken from the charge built up in C155 rather than expecting the power
supply to supply the pulses. Q13 is connected as an ON/OFF switch to the printhead
voltage circuits to act as protection. An explanation of its operation can be found in section
PRINTER INTERFACE. When ON, current is fed to U33 connected as a variable
voltage regulator with a range of +18 v to +24 v where VR1 adjusts this voltage.
©Ultrasound Technologies Ltd
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Ultrasound Technologies Ltd
Ultrasound Circuit
Overview
The ultrasound circuit is built up of four discrete sections.
These are:
Oscillator and Transmitter amplifier
Receiver and Detector
Audio amplifier
Signal pre-processing.
These operate to produce a continuous wave of 2MHz ultrasound which is passed to the
transmitter crystal in the transducer. The signal is then reflected from moving interfaces
within the body to the receiver crystal in the transducer, amplified and then detected so the
audio Doppler shift of that moving interface can be heard audibly or passed via signal preprocessing to the A/D converter for rate calculation.
The circuit board has the option of two ultrasound circuits which operated at different
frequencies, the operation of each is identical as so only one is described here. The current
nominal frequencies are 2.1MHz for US1 and 1.8MHz for US2.
(US2 shown in brackets)
Transmitter and Receiver PSU
Power suppley for the Ultrasound Circuits is derived from the stable +15VDC and further
regulated through U35 (U36) to provide an ultrastable 10VDC
Oscillator and Transmitter output.
L4 (L8) forms an oscillator with Q4 (Q9)and its associated capacitors producing a sine wave
drive at the required frequency. This is fed via a high current output driver Q1 (Q6) and output
transformer L1 (L6).
Receiver and Detector
The reflected Ultrasound signal is fed via a resonant transformer L1 (L5) to the gate of Q3
(Q8), the drain of this FET connects to the source of Q2 (Q7) to form a cascode amplifier
From the drain of Q2 (Q7) the amplitude complex of the received signal is detected by
passing the signal through chopping FET detector Q5 (Q10) the gate of which is driven from
the transmitter signal . The raw low frequency heart complex is then amplified and filtered
by U1 (U4) where its associated components form a bandpass filter amplifier with a
bandwidth of 150Hz to 1KHz. This signal is passed to the audio section and the signal preprocessing .
Audio Amplifier
The audio signal then passes to a input selector U29 where the user can select via the front
panel which Ultrasound channel will pass to the audio circuits and then to digital gain control
U28 and buffer amplifier U37, where the volume setting is determined by the microprocessor
subject to the user setting. From here the gain controlled signal is fed to the input of a
monolithic power amplifier U30 and from here to the loudspeaker at J18.
©Ultrasound Technologies Ltd
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Ultrasound Technologies Ltd
Signal Pre-processing
The detected audio complex is fed to U6 a bandpass amplifier where the filter characteristics
are arranged to reject signals below 150Hz and above 1KHz , and the output is taken do a
digital AGC U3 (U7). The amplitude stabilised signal is then amplified and full wave rectified
by U2 (U5) . This full wave rectified signal is then buffered and smoothed by an active
filter. The smoothing is achieved by the low pass active filter having a 3db at 5Hz hence
giving the average value of the audio complex. This signal is then passed to the A/D
converter stage of the cpu U18 for further digital signal processing .
Toco Circuit
A stabilised ±5V from U23 provides the toco transducer excitation at J16. The output of the
Toco transducer is fed via a high gain amplifier U23 to a low pass filter U23 for signal
smoothing into the A/D converter U27 further digital signal processing U18.
Toco Zero is automatically adjusted by D/A converter U24 providing an offset voltage into the
input of U23 .
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Ultrasound Technologies Ltd
Microprocessor Circuit
The microprocessor circuit is arranged around twin MC68HC812 a fast second generation
central processing unit (CPU). When power is applied to the circuit a monitor circuit waits
for the power rail to become stable and then 100 ms later takes the reset on the CPU high
(logic 1) to 5 v. This starts the CPU working by reading the bytes at the very top of its
memory map from the EPROM (ROM). This shows the CPU the start position in ROM
from which to start executing. This sets up all the peripheral devices, which includes an
interrupt timer, starts the system clock which consists of interrupts from the cpu to the
watchdog ic at the rate of 1 every millisecond. As all functions are time dependant nothing
starts without this clock. The CPU now reads all the preset variables from the battery
protected RAM within the real time clock. The battery source is a lithium 3.6 v cell with a
nominal life of 10 years.
After the CPU has loaded the variables it rums a system check for any internal problems
which are reported on the system display.
Selection of the individual devices is controlled by cpu internal the chip select circuits.
Most analogue signals eventually require digital signal processing for display, chart
recording or digital transmission, the signals are presented to CPU, where an internal 8 bit
A/D converter with an 8 way multiplexed input converts the signals to digital form. The
converter accepts unipolar signals of 0 - 5 v..
The CPU with the display and keyboard circuit using on chip peripheral interface , as well as
detecting selection of ultrasound and the presence of an Event keypress.
Printer Interface
A proportion of the micro-circuit is dedicated to printer interface and control, the
primary interface circuit contains timers, serial drivers and peripheral drivers. The principal
of operation of the printhead and motor drive circuit is as follows :
Data is decoded by the software into bit positions within the allowable area of the printhead
. This data is then passed in serial form with a clock signal into the printheads serial buffer.
The data is latched by a pulse from the cpu via CMOS buffer, this gives added protection in
the case of device failure. Data is then burnt onto the printhead by strobes 1 to 4 from the
cpu which last less than 1 mS .
Under normal conditions with the printer OFF there is no supply connected to the printhead
or chart motor. Only when printing is requested does the cpu turn on the 24VDC supply.
The cpu also drives the chart recorder stepper motor via the high current microstep interface.
Data Storage (optional)
Full resolution patient data is stored on the optional data file when fitted to the unit. The file
can store in excess of 48 hours of data that can be subdivided into 16 separate patient files.
The data can be recalled to strip chart recorder or to UltraTrace fetal PC software. The Data
file card is fitted to the serial 2 channel of the controller card.
©Ultrasound Technologies Ltd
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Ultrasound Technologies Ltd
Maternal SpO2 (optional)
A maternal SpO2 card plugs into S1 and communicated to the microprocessor circuits via an internal
serial bus. The systems display will change to accommodate the additional board and reflect Maternal
heart rate , maternal pulse and Oxygen saturation level. The SpO2 figure sensor connects to the back of
the FT360 via J3, 15 pin multipurpose connection.
Fetal SpO2 (optional)
The Nonin fetalsat fetal pulse oximeter connects directly to multipurpose connector J3, 15 pin. The
FT360 will automatically identify the presence of the Fetalsat and the display will change to reflect the
fetal oxygen saturation level and pulse. The fetal oxygen saturation level will also be printed in the toco
trace of the strip chart recorder.
Fetal ECG Circuits (optional )
“Internal” signals FECG and IUP are routed from the front panel to an optional card plugged into to the
main PCB at right angles via connector P1.
The input circuits are fully electrically isolated by a isolation PSU block mounted on the PCB and the
output signal are optically coupled. There is no ground connection between the input circuits and the
electrical circuits in the rest of the monitor.
ECG signals are fed from the sensors to the input of a high gain differential amplifier U14 / U15 and
instrumentation amplifier U11. The generated error signal is fed via U12 back to the LEG reference to
improve noise performance.
The output of U11 is routed to the un-isolated circuits through analogue opto coupler driven by U9.
Large DC offsets are corrected by feeding back the output of U11 to the input through U10.
The un-isolated signal is notch filtered at 50Hz or 60Hz using IC U5 and associated circuits and then
gain controlled from the microprocessor U18 using U1. The following circuits U2,U3, U17 form a filter
network with a cut off frequency of 80Hz.
©Ultrasound Technologies Ltd
Issue 1 2006
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Ultrasound Technologies Ltd
Test Procedures
Introduction
The following sections details tests to ensure that the FETATRACK 360 is operating within
specification. These tests may be performed in whole or part, however, if any repairs are
carried out to the power supply circuits then it is recommended that the whole test/calibration
procedure is undertaken.
The test procedures may be performed without removal of the circuit board from the unit.
Performance Checks
The following procedure is intended to provide a means of determining the functional
status of the unit. It should be included as part of a preventive maintenance plan and should
be performed on a regular basis.
1) Plug the monitor line cord into a grounded receptacle of suitable line voltage and
frequency as indicated on the rear panel of the FETATRACK 360 .
2) Turn monitor on. The green front panel LED will illuminate.
3) The display will first show the system selftest followed by the software revision
indicates the instrument is switched on and awaiting inputs.
This
4) Load chart paper to recorder (for assistance see operating instructions) ensure paper is
correctly aligned.
5) Depress printer on/off and recorder will run at either 1,2 or 3 cm/min dependent on the user
preset value.
Ultrasound
6) Connect ultrasound transducer to the pink or blue US sockets on the front panel and
increase volume to maximum.
7) Place transducer in palm of hand and gently stroke the back of the hand at a constant rate of
about 2 times a second.
8) Check audio volume is present, digital display will display the simulated rate (approx
120 ) and correspond with the data being printed on the chart paper.
UA / Toco / Contractions
9) Connect the toco transducer to the yellow UA input socket on the front panel and press
UA zero to set the baseline (baseline resets to value 1 -> 20 as selected in set up procedure).
10) Apply pressure onto the centre of transducer and check that the toco trace on chart
recording increases to 100 + 10%. Remove load and trace will return to baseline.
Event Marker
11) Connect the hand held remote event marker to the external mark socket. Depress the
button once and note that a half arrow is printed on the bottom of FHR recording.
©Ultrasound Technologies Ltd
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Ultrasound Technologies Ltd
Setting up the monitors
The mode of operation of the monitor is programmable through the front panel to give a
certain amount of customisation. The programming mode is entered by pressing and holding
UA Zero while turning the monitor ON.
Details of the user programmable options are at the beginning of this manual.
©Ultrasound Technologies Ltd
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Ultrasound Technologies Ltd
Basic Troubleshooting:
Unit turns on but LCD module displays one line of squares, all black, a stipe or no data
This is usually a failure of the LCD module but can be a failure of the main CPU. The best
option is to see if the monitor reacts to button presses, if it does then the module or its wiring is
faulty otherwise suspect the CPU. The cause of module failure is unknown other than
checking the wiring from the CPU board to the module. CPU failure can be due to corrosion of
the EPROM socket, removing the device and re-inserting cures 99% of all failures of this type,
otherwise the board requires detailed fault finding or replacement.
Ultrasound transducer does not detect a fetus
This can be poor placement of the transducer, not enough or incorrect coupling gel or a faulty
transducer or ultrasound circuit.
Place a small amount of gel on the face of the transducer and hold the transducer in the palm of
your hand. Stroke the back of your hand twice a second. The stroking should be audible and
the monitor should register around 120bpm.
If no sound or low sound suspect the probe or ultrasound circuits. The most likely cause of
failure is the transducer.
A different rate is shown on the display when compared to the chart paper
This is unlikely. The two systems are digitally linked and the effect is likely to be a user
misconception.
A different rate is shown on the display than I can count by ear
The monitor displays the average of the last 3 beats, even so, it is very much more accurate
that the user counting beats over the last 30 seconds.
Recorder door does not close
This can be caused by the right hand door catch being misaligned. When the door closure is
down this catch must close over the nylon roller sleeve on the right hand side of the recorder.
Adjust mechanism so this closes correctly.
Printing quality is poor (sections too light or missing)
Use of non standard chart paper damages the printer hear and creates a build up of thermal ink
on the head. Clean the head with a cotton bud and cleaning spirit.
Print head misalignment or non closure of printer door can also cause this problem.
Adjustment normally fixes the problem. In extreme cases the print head may also have failed.
Printing quality is poor due to FHR missing
This is normally due to the user not applying the transducer correctly or not using the correct
coupling gel, but can also be due to a failing ultrasound transducer. Ensure the user locates the
fetus correctly and check the trace for signs of large fetal movements that can indicate the fetus
has moved out of the transducers beam. If the toco transducer is connected you may also be
able to see maternal adjustment that can cause a intermittent connection to the skin.
Reapplication of the transducer usually solves these problems.
Toco transducer does not work
This can be poor placement of the transducer, or a faulty transducer or toco circuit.
Place a small amount of pressure on the face of the transducer and the display should respond
to this pressure. Check system zeroing by unplugging the transducer and re-connecting, the
monitor will respond by setting the transducer to zero.
©Ultrasound Technologies Ltd
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Ultrasound Technologies Ltd
Parts lists
The following section contains parts list and drawings for the FETATRACK 360.
©Ultrasound Technologies Ltd
Issue 1 2006
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Issue 1
Quantity
Per
fetatrack 360 main assy
Base Plate F360D106-101
Top Plate F360D107-101
Side Plate F360D108-101
Spring Clamp F360D109-101
Spring F360D110-101
Foot F360D111-101
Lever Assy F360D112-301 (includes plate & bush)
Lever Knob F360D112-401
Cam F360D113-101
Cam Bush F360D114-101
Peel Bar F360D115-101
Pivot Bar F360D116-101
Motor Pulley F360D117-101
Roller Pulley F360D118-101
Large Pulley F360D119-101
Small Pulley F360D120-101
Door Extrusion F360 (Machined) Drg 0113
Roller F360 F360D121-101
Paper Tray F360
Paper Out Sensor Assy F360
Rubbing Strip F360
Printhead Thermal QP128
Cable Assy Printhead Connector Drg FM1D125
Stepper Motor
Short Belt 71MXL F360
Long Belt 122MXL F360
Plastic Snap Rivet F360
Nylon Sleeve ??x12 F360
PTFE Bush 1.00 thick F360
Washer Nylon Flat M5 F360
Screw Set M3x?? F360
Screw Set M3x?? F360
Cap Heads M4x10 St/Steel F360
Nut M4 Full St/Steel A2
Housing Molex 4 Way 22-01-2045
Printer Parts
100-1111-00
100-1112-00
100-1113-00
100-1114-00
100-1115-00
100-1116-00
100-1117-00
100-1118-00
100-1119-00
100-1120-00
100-1121-00
100-1122-00
100-1123-00
100-1124-00
100-1125-00
100-1126-00
100-1108-00
100-1127-00
100-1128-00
100-1129-00
900-0076-00
900-0047-00
600-0007-00
900-0021-00
900-0077-00
900-0078-00
900-0079-00
900-0080-00
900-0081-00
961-0049-00
961-0050-00
961-0051-00
961-0052-00
961-0019-00
500-0011-00
© Ultrasound Technologies Ltd 2006
Description
Part Number
100-0117-00
Fetatrack 360 Main Asssy
Page 1 of 2
Crimps Molex
Screw M3x6 Csk Hd Pozi St/Steel A2
500-0012-00
961-0016-00
chassis assy
100-1047-00
100-1046-00
100-1045-00
100-1044-00
900-0027-00
100-0097-00
100-1091-00
100-1092-00
100-1083-00
900-0026-00
800-0016-00
800-0015-00
800-0017-00
800-0025-00
500-0056-00
600-0023-00
500-0030-00
500-0011-00
500-0017-00
500-0015-00
500-0057-00
500-0058-00
500-0059-00
500-0060-00
600-0022-00
900-0082-00
961-0028-00
961-0003-00
961-0015-00
961-0004-00
900-0064-00
500-0040-00
223-0683-00
© Ultrasound Technologies Ltd 2006
1
1
1
1
4
1
1
1
1
1
1
2
1
1
2
1
1
4
2
1
1
1
1
22
1
4
2
1
1
6
4
0
1
Issue 1
Quantity
Per
7
1
fetatrack 360 main assy
Base F360D102-101
Cover F360D103-101
Connector Plate F360D100-101
Printer Bracket F360D101-101
Feet Heavy Duty ABS
Fetatrack 360 PCB assy
Moulding Front Fetatrack 360
Moulding Rear Fetatrack 360
Label Set Fetetrack 360 Keypad with Green LED
Filter Mains Inlet (Traceable Product)
Transformer Mains (Traceable Product)
Fuse 500mA Antisurge 250V Glass T 20mm
Loudspeaker 3in 10W
LCD 200x128 STN Green/Yellow Green Backlight
Header IDC 20W
Ribbon Cable 20W (uon = mtrs)
Housing Molex 2 Way 22-01-2025
Housing Molex 4 Way 22-01-2045
Housing Molex 6 Way 22-01-2065
Housing Molex 8 Way 22-01-2085
Nicolay Socket 12W Pink
Nicolay Socket 12W Yellow
Nicolay Socket 12W Blue
Nicolay Female Contacts
Wire Eqpt Type 44 24AWG White (uom=mtrs)
EMI Absorber (Seward 3007-0500)
Spade Terminal 0.25 RT Angle
Screw M3x6 Pan Hd Pozi St/Steel A2
Screw M3x8 Pan Hd Pozi St/Steel A2
Screw M3x16 Csk Hd Pozi St/Steel A2
Connector Crimp Terminal 4.8x0.8mm
Header IDC 20 Way Straight
Resistor MF 68K 1% 0805
Description
Part Number
100-0117-00
Fetatrack 360 Main Asssy
Page 2 of 2
F360 US1 Trans
Faceplate Seward ultrasound 0210-3239
Crystal Set 2.1Mhz Pz27 disc od=25mm Seward
PCB Ultrasound F310 Transducer iss 6
Cable 360 Transducer US1/US2 Seward Grey 2m lengt
Transducer Body White Seward 0210-3232
Nicolay Contact Male 5630-4012
Nicolay Plug Free 12W Pink
Grommet Extended Black Rubber Small
Label FHR US1/US2 F360 Transducer
Label Serial Number 33 Series F360 Transducer
Cable Tie
100-1094-00
800-0027-00
800-0031-00
600-0019-01
100-1130-00
500-0064-00
500-0066-00
900-0039-00
100-1141-00
100-1140-00
900-0008-00
© Ultrasound Technologies Ltd 2006
Description
Part Number
Issue 1 ECN
1
1
1
1
1
6
1
1
1
1
1
Quantity
Per
100-0075-00
Fetatrack 21T/360 Ultrasound 1 Transducer Pink (M/1/0059)
Page 1 of 1
F360 US2 Trans
Faceplate Seward ultrasound 0210-3239
Crystal Set 2.1Mhz Pz27 disc od=25mm Seward
PCB Ultrasound F310 Transducer iss 6
Cable 360 Transducer US1/US2 Seward Grey 2m lengt
Transducer Body White Seward 0210-3232
Nicolay Contact Male 5630-4012
Nicolay Plug Free 12W Blue
Grommet Extended Black Rubber Small
Label FHR US1/US2 F360 Transducer
Label Serial Number 33 Series F360 Transducer
Cable Tie
100-1094-00
800-0027-00
800-0031-00
600-0019-01
100-1130-00
500-0064-00
500-0067-00
900-0039-00
100-1141-00
100-1140-00
900-0008-00
© Ultrasound Technologies Ltd 2006
Description
Part Number
Issue 1 ECN
1
1
1
1
1
6
1
1
1
1
1
Quantity
Per
100-0081-00
Fetatrack 210/260/360 Ultrasound 2 Transducer Blue (0215-
Page 1 of 1
F360 ToCo Trans
Probe Cable Clamp PD120
Toco Spring Diaphragm F360 Transducer
Membrane PVC Seward To-Co Transducer
Transducer Body White Seward 0210-3232
Faceplate Toco Seward F360
Toco Button F360 Transducer
Toco Clamp Ring F360 Transducer
PCB Toco F360 Transducer iss
Toco Button Screw F360 Transducer
Toco Adjustment Plate F360 Transducer
Cable 360 Toco Transducer Seward Grey 2m leng
Label Serial Number 34 Series F360 Transducer
Toco Beam Assy F360 Transducer
Resistor MFR4 240R 1%
Nicolay Plug Free 12W Yellow 5620-4012
Nicolay Contact Male 5630-4012
Screw M2x6 Pan Hd Pozi St/Steel A2
Screw M2x5 Csk Hd Pozi St/Steel A2
Screw M2x6 Csk Hd Pozi St/Steel A2
Grommet Extended Black Rubber Small
Terminal Pin Single Sided
IC Op-Amp OP07CD
Label UA F360 Toco Transducer
100-1072-00
100-1134-00
100-1087-00
100-1130-00
100-1131-00
100-1132-00
100-1133-00
800-0032-00
961-0053-00
100-1135-00
600-0024-01
100-1136-00
100-1137-00
210-0240-00
500-0063-00
500-0064-00
961-0054-00
961-0055-00
961-0056-00
900-0039-00
900-0084-00
431-0007-00
100-1138-00
© Ultrasound Technologies Ltd 2006
Description
Part Number
Issue 1 ECN
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
5
3
3
2
1
3
1
1
Quantity
Per
100-0079-00
AFM210/260/360 External Toco Transducer Yellow
Page 1 of 1
U12
U11
U13,18
U14,20
U16,21
U15
431-7404-00
432-0001-00
434-0001-00
433-0001-00
432-0002-00
432-0003-00
© Ultrasound Technologies Ltd 2006
323-0472-00
323-0332-00
323-0102-00
323-0681-00
323-0331-00
323-0221-00
323-0101-00
323-0470-00
323-0220-00
323-0151-00
320-0106-01
320-0105-00
320-0474-00
IC
IC
IC
IC
IC
IC
SM
SM
SM
SM
SM
SM
Page 1 of 4
74HCT04 SO14
74HCT541
68HC812
(32x8) Eprom 27C256
62256 (43256)
3777
Issue 2
Digital
Digital
Digital
Digital
Digital
Digital
1
1
2
2
2
1
20
1
2
11
4
1
4
2
1
4
1
1
4
4
Cap
Cap
Cap
Cap
Cap
Cap
Cap
Cap
Cap
Cap
Cap
Cap
Cap
Cap
Cer SM X7R 10nf 50V 20% 0805
Cer SM X7R 4.7nf 50V 20% 0805
Cer SM X7R 3.3nf 50V 20% 0805
Cer SM COG 1.0nf 50V 20% 0805
Cer SM COG 680pf 50V 20% 0805
Cer SM COG 330pf 50V 20% 0805
Cer SM COG 220pf 50V 20% 0805
Cer SM COG 100pf 50V 20% 0805
Cer SM COG 47pf 50V 20% 0805
Cer SM COG 22pf 50V 20% 0805
Cer SM COG 150pf 50V 20% 0805
Tant SM 10uf 20V 20% Case B
Tant SM 1uf 35V 20% Case A
Tant SM 0.47uf 25V 20% Case A
82
2
2
Electrolytic 10000uF 35V Snap In Panasonic TSUP Series
Electrolytic 1000uF 35V Panasonic FC Series
Electrolytic 270uF/330uF 16V Panasonic FA Series
Electrolytic 220uF 35V BCC 136 60221
Electrolytic 120uF 50V Panasonic FC Series
Electrolytic Min 100uf 16V 5mm Radial
Electrolytic 22uF 100V Panasonic FC Series
Cer SM Y5V 1uf 16V +20-80% 0805
Quantity
Per
1
1
2
4
2
4
2
4
Cap Cer SM X7R 100nf 50V 20% 0805
Cap Cer SM X7R 47nf 50V 20% 0805
Cap Cer SM X7R 33nf 50V 20% 0805
Cap
Cap
Cap
Cap
Cap
Cap
Cap
Cap
Description
fetatrack360 pcb assy
C147
C144
C158,163
C90,103,150,154
C149,152
C38,82,91,135
C159,166
C37,81,126,170
C1,2,6,17,18,20,22,23,24,25,28,29,30,31,3
5,40,41,44,45,49,62,64,65,68,69,70,71,72,
73,74,75,79,84,85,88,89,92,93,94,97,99,10
1,102,105,106,108,110,111,112,113,114,120
,121,122,123,124,125,127,128,129,130,131,
132,133,134,136,137,138,139,141,143,145,1
C43,87
C95,116
C8,13,19,21,32,34,36,39,52,57,61,63,76,78
,80,83,104,107,153,156.
C109
C96,117
C4,12,16,33,42,47,56,60,77,86,140
C7,10,50,54
C48
C3,11,46,55
C5,51
C9
C98,100,118,119
C53
C167 (NOT 10Volt)
C115,142,155,161 (NOT 20Volt)
C15,27,59,67
311-0109-00
311-0108-00
311-0277-00
311-0227-00
311-0127-00
311-0106-00
311-0225-00
323-0105-00
323-0104-00
323-0473-00
323-0333-00
323-0103-00
Ref
Part Number
100-0097-00
ft 360 PCB Assy
X1
X2,3
R116,118,120,121
R117,166
R2,6,44,49,174
R171,172
820-0002-00
820-0003-00
224-0010-00
223-0010-00
223-0100-00
224-0220-00
© Ultrasound Technologies Ltd 2006
Q13
Q1,6,11,12
Q14
Q2,3,4,5,7,8,9,10
Diode SM 10BQ040 SMB
D25,26,27
D1,2,5,6,8,9,10,11,14,15,17,18,19,20,21,2 Diode SM BAS16 SOT23
Diode Zenner SM BZX84C5V1 SOT23
D7,16,23,29
Diode Zenner SM BZX84C6V2 SOT23
Diode Bridge 4 Pin SIL GBU4A
D24
Diode Zenner SM BZX84C10 SOT23
D30
420-1004-00
420-0016-00
420-8451-00
420-8462-00
411-0004-00
420-8410-00
420-0805-00
420-0848-00
420-0001-00
420-4416-00
U14,20
fetatrack360 pcb assy
Issue 2
Page 2 of 4
1R 5% 1206
1R 1% 0805
10R 1% 0805
22R 1% 1206
4
2
5
2
MF
MF
MF
MF
Resistor
Resistor
Resistor
Resistor
1
4
1
8
1
2
SM RFD8P05SM TO252AA (Tube = 75)
SM BC848B SOT23
SM FZT751 SOT223
SM 4416 SOT23
3
16
4
0
1
1
2
Quantity
Per
1
2
1
1
1
1
1
2
1
6
1
3
1
1
2
2
Crystal 32.768Hz 85SMX
Crystal SM 12MHz 86SMX
Transistor
Transistor
Transistor
Transistor
Socket IC SM 32W PLCC
Digital SM 39612
SM LT1076CQ
TH TO220 LM338T
SM DS1305E
Digital SM MAX202 SO16
Digital SM MAX549ACUA or AEUA
Digital SM MAX1243 SO8
Analogue SM 33064Z
Analogue SM DG211BDY
Analogue SM LM324 SO14
Analog Power Amp SIL9MPF TDA2614/N1
Analogue SM X9C103S SO8
Analogue SM LM336M-2.5
SRAM 1Kx8 CY7C155
Analogue SM TL072CD SO8 (Tube = 75)
Regulator ZSR1000 10V 200MA SOT223
533-0032-00
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
U17
U31,32
U33
U10
U8
U24
U27
U9,19
U29
U1,2,4,5,6,23
U30
U3,7,28
U25
U22
U26,34
U35,36
432-0004-00
440-1076-00
411-0338-00
436-1305-00
431-0202-00
431-0549-00
431-1243-00
431-0001-00
431-0211-00
431-0324-00
411-2614-00
431-9103-00
431-0336-00
436-0131-00
431-0072-00
431-1000-00
Description
Ref
Part Number
100-0097-00
ft 360 PCB Assy
L9
L10,11
L12
L1,5
311-0226-00
320-0001-00
311-0001-00
311-0838-00
© Ultrasound Technologies Ltd 2006
223-0184-00
223-0224-00
223-0334-00
223-0106-00
220-0202-00
220-0204-00
223-0123-00
223-0153-00
223-0163-00
223-0223-00
223-0273-00
223-0333-00
223-0363-00
223-0473-00
223-0683-00
223-0104-00
223-0122-00
223-0152-00
223-0222-00
223-0272-00
223-0472-00
223-0103-00
18
4
2
4
2
1
1
1
2
1
2
MF
MF
MF
MF
MF
MF
MF
MF
MF
MF
MF 100K 1% 0805
MF 180K 1% 0805
MF 220K 1% 0805
MF 330K 1% 0805
MF 10M 2% 0805
Variable Multi-Turn SM 2K 3224W
Variable Multi-Turn SM 200K 3224W
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
Inductor 22uH Panasonic ELC
Inductor
Inductor Torroid 100uH 10mm Dia (50uH Alt)
Inductor Fixed Toco 0838
Issue 2
10K
12K
15K
16K
22K
27K
33K
36K
47K
68K
1%
1%
1%
1%
1%
1%
1%
1%
1%
1%
Page 3 of 4
0805
0805
0805
0805
0805
0805
0805
0805
0805
0805
57
2
2
3
3
3
2
2
4
6
18
1
2
10
4
3
MF
MF
MF
MF
MF
MF
Resistor
Resistor
Resistor
Resistor
Resistor
Resistor
1K 1% 0805
1K2 1% 0805
1K5 1% 0805
2K2 1% 0805
2K7 1% 0805
4K7 1% 0805
15
4
2
Quantity
Per
Resistor MF 100R 1% 0805
Resistor MF 220R 1% 1206
Resistor MF 470R 1% 0805
Description
fetatrack360 pcb assy
R1,9,35,39,42,43,52,78,82,105,107,134,135
,160,182
R85,86,87,89
R88,144
R13,17,40,56,60,83,119,122,124,125,148,15
9,167,170,184,187,188,189
R163
R8,51
R11,19,26,30,54,62,69,73,181,185
R176,179,180,190
R37,80,186
R5,20,21,22,23,24,38,41,47,48,63,64,65,66
,67,81,84,90,91,92,93,94,95,96,97,98,99,1
00,101,102,103,104,108,109,110,111,113,11
4,126,127,128,130,131,133,136,137,138,139
,141,145,147,150,151,153,154,164,173,
R123,183
R161,168
R112,129,146
R29,72,178
R7,50,165
R142,155
R25,68
R33,76,140,162
R12,16,31,55,59,74
R3,4,10,15,27,32,36,45,46,53,58,70,75,79,
106,156,175,177
R18,28,61,71
R143,158
R34,77,157,169
R115,132
VR2
VR1
223-0101-00
224-0221-00
223-0471-00
223-0102-00
Ref
Part Number
100-0097-00
ft 360 PCB Assy
© Ultrasound Technologies Ltd 2006
fetatrack360 pcb assy
Issue 2
Page 4 of 4
1
FETA360 R2
800-0028-00
1
B1 (Fit On Test)
1
1
1
0.12
1
2
2
2
2
4
1
3
3
2
1
1
1
1
1
1
Battery Lithium 1/2AA 3.6v
Header Straight 2 Way 22-27-2021
Header Straight 4 Way 22-27-2041
Header Straight 6 Way 22-27-2061
Header Straight 8 Way 22-27-2081
Header Straight 15 Way 22-27-2151
Connector Socket RS232C D 9 way
Sterio Jack Socket
Socket 8w DIL
Conn DIN41612 32 Way a
Header Box 20 Way 2.54 Milligrid
900-0030-00
J18
J11,12,17
J1,5,16
J2,6
J7
J3
J10
S1
P1
J8
500-0023-00
500-0024-00
500-0025-00
500-0026-00
500-0028-00
500-0029-00
500-0052-00
500-0065-00
500-0039-00
500-0038-00
Inductor Fixed Toco 0842
Inductor Fixed Toco 0841
Inductor Fixed Toco 0876
Quantity
Per
2
2
2
Spacer M3 Hex 10mm
Heatsink Ultratec PFM1S2
Insulating Kit TO220 Silicone
Wire Black 24AWG UL1061 (300m Reel) UOM = Mtrs
Eyelet Connector 3mm
Screw M3x8 Pan Hd Pozi St/Steel A2
Screw M3x6 Pan Hd Pozi St/Steel A2
Washer M3 Plain St/Steel A2
Washer M3 Internal Shakeproof St/Steel A2
Nut M3 Full St/Steel A2
L3,7
L4,8
L2,6
311-0842-00
311-0841-00
311-0876-00
Description
961-0047-00
900-0029-00
961-0032-00
600-0010-00
961-0027-00
961-0015-00
961-0003-00
961-0018-00
961-0006-00
961-0005-00
Ref
Part Number
100-0097-00
ft 360 PCB Assy
CAM350 PRO V 7.0 : Sat Jun 10 10:08:58 2006 - (Untitled) : feta360r3-assy.
D
C
B
J1
Tdr_Sense_US1
RxSig1
USTx1
6
4
1
Tdr_Sense_US1
L1
0838
RxSig1
C2
100nF
R2
10R
E
C
R4
100K
R3
100K
3
C3
220pF
1
Ultrasound Transducer connection
6
5
4
3
2
1
3
2.1MHz Transmitter / Receiver
C1
100nF
6
2
2
3
B
3
2
1
2
1
R5
10K
3
1
S
D
S
D
L3
0842
R6
10R
G
G
3
Vrf1
1
C7
680pF
D1
BAS16
2
D2
BAS16
C6
100nF
Vcc
R8
1K5
L4
0841
10nF
C19
A
C5
100pF
R7
27K
3
C9
47pF
R10
100K
R18
180K
R11
2K2
S
D
C10
680pF
Q4
MMBF4416
US1_connected {04}
MMBF4416
Q5
3
2
1
G
C4
1nF
2
1
3
G
C11
220pF
C12
1nF
C13
10nF
L2
0876
100R
R9
1
D
C8
10nF
2
S
+
+
1K0
R13
R12
68K
C14
10uF
I+
3
U1
neg12V
11
LM324M
C15
0u47F
3
I-
1R
R14
2
4
+12V
C23
100nF
neg12V
IN
C25
100nF
C24
100nF
+
1K0
R17
R16
68K
ZSR1000G
C18
100nF
+12V
U35
OUT
C22
100nF
1
10nF
C21
C17
100nF
C20
100nF
1
4
I+
neg12V
11
U1
+12V
LM324M
I-
4
C29
100nF
C28
100nF
C27
0u47F
5
6
3
2K2
R19
100nF
C30
Vrf1
7
+12V
100nF
C31
5
6
FH1_Audio {06}
5
I+
neg12V
11
BAS16
D6
7
+12V
BAS16
4
D5
U2
LM324M
I-
10K
R21
1
14
I-
11
3
2
I+
LM324M
neg12V
U1
+12V
4
10K
R23
12
13
I+
1
10
9
6
11
U1
neg12V
C35
100nF
I+
LM324M
I-
+12V
4
10nF
C36
180K
R28
Average value circuit
neg12V
11
U2
+12V
4
LM324M
I-
R25
36K
6
10nF
C34
2K2
R26
100K
R27
10nF
C32
1nF
C33
10K
R24
5
1uF
C37
+
U/D {02,04}
INC {02,04}
C40
100nF
12
13
I+
U2
neg12V
11
LM324M
I-
+12V
4
CS_Agc_US1 {04}
C38
100uF
Vcc
100R
R35
C39
10nF
7
R34
330K
Copyright
ultratec 2003
3
2
CS
U/D
INC
Lodge Way
Portskewett, Caldicot
South Wales. NP26 5PS. UK
7
11
U6
VL
VW
VH
1
9
6
5
3
100R
R39
I+
11
8
12
13
4
11
neg12V
ECN
PR
Issue
1
2
R40
1K0
AGC
I+
U6
+12V
LM324M
I-
8
8
Drawn: NAS
Drg No:
Date:
Name: FETA36~3
Sheet 1
Fetatrack 360 Ultrasound 1 Circuit
D7
BZX84C5V1
neg12V
U2
+12V
4
LM324M
I-
X9C103
10
VSS
U3
neg12V
VCC
I+
LM324M
I-
4
+12V
Fetal_Complex_FH1 {04}
14
7
2
1
8
Ultrasound Technologies Ltd
8
68K
R31
4
100K
R15
1nF
C16
4
R30
2K2
22K
R29
100K
R32
47K
R33
Q1
BC848B
R1
100R
3
4
2
C41
100nF
R36
100K
1nF
C42
4K7
R37
USTx1
3
1
R38
10K
1
10K
R22
1
3
1
3
MMBF4416
Q2
MMBF4416
Q3
3
1
3
2
10K
R41
47nF
C43
10K
R20
of 6
June 03
May 06
Date
14
D
C
B
A
D
C
B
A
J2
Tdr_Sense_FECG
Tdr_Sense_US2
RxSig2
USTx2
6
1
Tdr_Sense_FECG
Tdr_Sense_US2
L5
0838
RxSig2
4
C45
100nF
R44
10R
E
C
R46
100K
R45
100K
3
C46
220pF
1
Ultrasound Transducer connection
8
7
6
5
4
3
2
1
3
1.8MHz Transmitter / Receiver
C44
100nF
6
2
3
B
3
2
1
2
1
R48
10K
R47
10K
3
1
S
D
S
D
L7
0842
R49
10R
G
G
3
Vrf2
1
C50
680pF
Vcc
D9
BAS16
2
D11
BAS16
D8
BAS16
D10
BAS16
C49
100nF
Vcc
R51
1K5
L8
0841
3
2
C51
220pF
1
C53
220pF
2
R53
100K
FECG_connected {04}
3
G
C55
220pF
1
R61
180K
R54
2K2
S
D
C54
680pF
US2_connected {04}
MMBF4416
Q10
D
2
100R
R52
10nF
C61
Q9
MMBF4416
1
G
C48
470pF
R50
27K
C52
10nF
3
C47
1nF
2
S
L6
0876
MMBF4416
Q7
MMBF4416
Q8
C56
1nF
C57
10nF
1
R55
68K
+
+
1K0
R56
C58
10uF
Vrf2
3
4
U4
neg12V
11
LM324M
I+
C59
0u47F
3
I-
1R
R57
2
C62
100nF
+12V
100K
R58
1nF
C60
1
1
10nF
C63
U36
IN
4
I+
C69
100nF
11
neg12V
U4
+12V
LM324M
I-
C68
100nF
neg12V
C65
100nF
C64
100nF
5
6
C67
0u47F
3
+12V
+
1K0
R60
R59
68K
ZSR1000G
OUT
2K2
R62
4
C72
100nF
C71
100nF
100nF
C70
4
7
C74
100nF
C73
100nF
+12V
100nF
C75
3
2
FH2_Audio {06}
5
I+
neg12V
11
BAS16
D15
1
+12V
BAS16
4
D14
U5
LM324M
I-
10K
R64
14
I-
11
5
6
I+
LM324M
neg12V
U4
+12V
4
10nF
C76
12
13
1nF
C77
R68
36K
I+
7
10
9
6
U4
neg12V
11
C79
100nF
I+
LM324M
I-
+12V
4
10nF
C80
180K
R71
Average value circuit
neg12V
11
U5
+12V
4
LM324M
I-
10K
R67
10nF
C78
2K2
R69
100K
R70
6
1uF
C81
8
C82
100uF
U/D {01,04}
INC {01,04}
C84
100nF
10
9
I+
U5
neg12V
11
LM324M
I-
+12V
4
CS_Agc_US2 {04}
+
Vcc
100R
R78
C83
10nF
7
R77
330K
Copyright
ultratec 2003
11
U/D
INC
CS
Lodge Way
Portskewett, Caldicot
South Wales. NP26 5PS. UK
7
12
13
VSS
U7
VL
VW
I+
14
10
9
4
11
U6
neg12V
ECN
PR
Issue
1
2
R83
1K0
AGC
I+
LM324M
I-
+12V
8
8
Drawn: NAS
Drg No:
Date:
Name: FETA36~3
Sheet 2
Fetatrack 360 Ultrasound 2 Circuit
D16
BZX84C5V1
neg12V
11
U5
+12V
4
LM324M
I-
6
5
3
100R
R82
VH
7
X9C103
U6
neg12V
VCC
I+
LM324M
I-
4
+12V
Fetal_Complex_FH2 {04}
8
7
2
1
8
5
6
Ultrasound Technologies Ltd
68K
R74
5
10K
R66
4
R73
2K2
22K
R72
100K
R75
47K
R76
USTx2
3
4
2
C85
100nF
R79
100K
1nF
C86
4K7
R80
1
10K
R65
1
3
1
3
R81
10K
Q6
BC848B
R42
100R
R43
100R
3
1
3
1
3
1
3
1
3
2
10K
R84
47nF
C87
10K
R63
Date
June 03
May 06
of 6
8
D
C
B
A
D
C
B
8
7
6
5
4
3
2
1
R86
100R
R87
100R
J5
J4
C88
100nF
6
5
4
3
2
1
Vcc
neg12V
aux_signal_control {04}
Aux_connection {04}
1
+12V
Vcc
pox_photo_diode_signal {04}
pox_sensor_type_line {04}
pox_cable_shield {04}
pox_signal_shield {04}
pox_photo_diode_bias {04}
Aux Signal Connection
6
5
4
3
2
1
Aux RS232
J3
11
12
13
14
15
15 Pin D-Type Socket
1
RS232_Tx
2
RS232_Rx
3
4
5
6
7
8
pox_led_drive_line {04}
9
pox_led_drive_line2 {04}
10
RS232
Vcc
C89
100nF
KeyOut
Key[5]
Key[4]
Key[3]
Key[2]
Vcc
D[6]
D[4]
2
8
13
7
14
6
P19
P17
P15
P13
P11
P9
P7
P5
P3
P1
P20
P18
P16
P14
P12
P10
P8
P6
P4
P2
20
18
16
14
12
10
8
6
4
CSlcd
WR {04}
R2in
MAX202E
R2out
R1out
T2in
R1in
T1in
C2-
C2+
C1-
C1+
T2out
U8
Vcc
9
12
10
11
5
4
3
1
+
C93
100nF
C92
100nF
C90
220uF
Printhead interface
15
14
13
12
11
10
9
8
7
6
5
4
3
2
+
T1out
V-
V+
J7
1
+24V {06}
2
11
12
13
14
15
16
17
18
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
U11
VR1
250K
Vcc
BATT
3.6V
B1
Rx_Data
1
-
+
Rx_Data_Aux
A8
A7
A6
A5
A4
A3
A2
A1
G2
G1
OUT
ZM33064Z
IN
U9
X1
19
1
9
8
7
6
5
4
3
2
3
Vcc
Vcc
R91
10K
Gnd
INT1
n/c3
INT0
N/C2
X2
n/c1
X1
VBat
U10
R95
10K
2
74HCT04D
U12
11
12
13
14
15
16
17
18
19
20
R97
10K
reset
3
WR {04}
CS_Toco_Adjust {04,05}
1
CE
n/c4
SCLK
SDI
SDO
Vccif
PF
n/c5
Vcc1
R96
10K
sermode
DS1305E
R93
10K
Vcc2
R90
10K
Vcc
10
9
8
7
6
5
4
3
2
1
R92
10K
LCD contrast control
32KHz
ACT541
Tx_Data_Aux
Tx_data
C91
100uF
D[7]
D[5]
D[3]
LCD_reset
D[1]
Front Panel Display Interface
J8
19
17
15
13
11
D[2]
7
5
3
9
RD
A[0] {04}
D[0]
LCD_font_select
R89
100R
Key[1]
Front Panel Key Pad Interface
J6
R85
100R
R88
470R
A
13
11
9
5
3
R94
10K
6
8
10
12
74HCT04D
U12
74HCT04D
U12
74HCT04D
U12
74HCT04D
RD
Toco_A/D_CS {05}
LCD_reset
reset
RTC_Select
Serial_Clock
4
1
10K
R101
J9
unconnected spare
RTC_Select
Serial_Out
74HCT04D
U12
Serial_Out
Serial_In
Serial_Clock
Serial_In
R99
10K
U12
Vcc
Vcc
Vcc
R98
10K
Tx_Data_Aux
Rx_Data_Aux
Tx_data
Rx_Data
Key[5]
Key[4]
Key[3]
Key[2]
Key[1]
10K
R100
10K
R102
10K
R104
4
alarm {06}
US1_audio {06}
US2_audio {06}
86
85
94
93
92
91
90
89
88
87
27
26
25
24
23
22
21
20
84
83
82
81
78
77
76
75
10
9
8
7
6
5
4
3
104
103
102
101
100
99
98
97
112
111
110
109
108
107
106
105
Vcc
KeyOut
PrintVoltageOn/Off {06}
LCD_font_select
MotorPhase2Zero
MotorPhase1Zero
10K
R103
VRL
VRH
AN8
AN7
AN6
AN5
AN4
AN3
AN2
AN1
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
PH7
PH6
PH5
PH4
PH3
PH2
PH1
PH0
PJ7
PJ6
PJ5
PJ4
PJ3
PJ2
PJ1
PJ0
SS
SCK
U13
D17
BAS16
Vcc
MC68HC812A4
SDO/MOSI
SDI/MISO
TXD1
RXD1
TXD0
RXD0
PT7
PT6
PT5
PT4
PT3
PT2
PT1
PT0
3
1
Vcc
R105
100R
C94
100nF
D18
BAS16
100K
R106
Vcc
5
XIRQ
IRQ
R/_W
LSTRB/TAGLO
ECLK
IPIPE0/MODA
IPIPE1/MODB
ARST
XFC
XTAL
EXTAL
RESET
BKGD/_TAGHI
CS0
CS1
CS2
CS3
CSD
CSP0
CSP1
D7
D6
D5
D4
D3
D2
D1
D0
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
reset
J10
Paper Out Sensor
4
3
Event Marker
2
1
R114
10K
6
J12
C101
100nF
+24V {06}
2
1
C100
22pF
R116
1R
22 D[7]
21 D[6]
20 D[5]
19 D[4]
18 D[3]
15 D[2]
14 D[1]
13 D[0]
D[0:7]
C105
100nF
5
Vcc
13
C108
100nF
VR1
Dis2
Dis1
Phase2
Phase1
R121
1R
C107
10nF
28
Vcc
17
19
2
18
3
4
7
Copyright
ultratec 2003
Vref
Reset
CS
WR
NC
AO
D7
D6
D5
D4
D3
D2
D1
D0
1
20
16
5
15
14
6
7
8
9
reset
D[7]
D[6]
D[5]
D[4]
10 D[3]
11 D[2]
12 D[1]
13 D[0]
NJU39612E2
U17
C115
1u0F
Motor Control
Vss
DA2
DA1
SIGN2
SIGN1
VDD
J13
Vcc
19 D[7]
18 D[6]
17 D[5]
16 D[4]
15 D[3]
13 D[2]
12 D[1]
+
1
Issue
R124
1K0
CSmotordrive
A[0] {04}
8
ECN
Date
June 03
Vcc
8
Digital Printer Control and user interface
Drg No:
Drawn:
Lodge Way
Portskewett, Caldicot
Date:
South Wales. NP26 5PS. UK Name: FETA36~3
Sheet 3
of 6
Ultrasound Technologies Ltd
MotorPhase1Zero
MotorPhase2Zero
C109
4700pf
Vcc
17
8
14
11
15
10
6
5
4
3
2
1
Vcc
C114
100nF
11 D[0]
Debug Control
Vcc
C172
100nF
reset
debug
cs_dpr {04}
U15
NJM3777
C171
100nF
OE
WE
CS
A14
A13
A12
A11
A10
A9
A8
D7
A7
D5
D4
D3
D2
D1
D0
C113
100nF
D6
HM62256
U16
C112
100nF
A6
A5
A4
A3
A2
A1
A0
C111
100nF
WR {04}
22
27
20
A[14] 1
A[13] 26
A[12] 2
A[11] 23
A[10] 21
A[9] 24
A[8] 25
A[7] 3
A[6] 4
A[5] 5
A[4] 6
A[3] 7
A[2] 8
A[1] 9
A[0] 10
C110
100nF
7
VR2
Gnd4 Gnd2
E2 C2 E1 C1 RC Gnd3 Gnd1
MB2
MA2
MB1
MA1
R120
1R
23
21
2
4
20
C106
100nF
VMM2 VMM1
11.05920MHz
X2
O7
O6
O5
O4
O3
O2
O1
O0
C103
220uF
C104
10nF
+
R118
1R
Motor Drive Output
4
R113
10K
XTAL
R115
10M
2
R111
10K
Vcc
C98
22pF
U14
A[0:16]
C102
100nF
27256PLC
VPP
OE
CE
3
J11
R110
10K
R112
16K
EXTAL
2
25
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
C99
100nF
1
XTAL
C95
33nF
Vcc
Vcc
31
A[14]
23
30
A[13]
3
A[12]
CS_Volume {06}
27
A[11]
debug
EXTAL
28
A[9]
A[10]
U/D_audio {06}
C96
3n3F
29
A[8]
24
4
5
6
7
8
9
10
11
A[7]
A[6]
A[5]
A[4]
A[3]
A[2]
A[1]
A[0]
C97
100nF
INC_audio {06}
CSmotordrive
CSlcd
R109
10K Vcc
Vcc
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
R108
10K
36
37
38
39
48
49
50
51
44
47
46
40
19
68
69
70
71
72
73
74
35
34
33
32
31
30
29
28
18
17
16
13
12
11
67
66 A[14]
65 A[13]
64 A[12]
63 A[11]
62 A[10]
61 A[9]
60 A[8]
59 A[7]
58 A[6]
57 A[5]
56 A[4]
55 A[3]
54 A[2]
53 A[1]
52 A[0]
100R
R107
R117
1R
2
R119
1K0
1
22
+12V
9
Vcc
16
D[0:7] {04}
12
6
3
R122
1K0
5
7
4
19
3
6
2
3
1
18
R123
12K
1
1K0
R125
D
C
B
A
D
C
B
A
Vcc
Aux_Card_TX
Aux_Card_Rx
FECG_Cont1
FECG_Cont2
FECG_Cont3
FECG_Cont4
FECG_Clock
FECG_Gain
ua_signal {06}
FECG_Signal_complex
+12V
1
ecg / iup interface card connector
P1
1
A1
2
A2
3
A3
4
A4
5 neg12V
A5
6
A6
7
A7
8
A8
9
A9
10
A10
11
A11
12
A12
13
A13
14
A14
15
A15
16
A16
17
A17
18
A18
19
A19
20
A20
21
A21
22
A22
23
A23
24
A24
25
A25
26
A26
27
A27
28
A28
29
A29
30
A30
31
A31
32
A32
1
2
2
INC {01,02}
R133
10K
Vcc
Fetal_Complex_FH2 {02}
Fetal_Complex_FH1 {01}
Aux_connection {03}
FECG_Signal_complex
aux_signal_control {03}
FECG_connected {02}
IUP_connected {05}
Toco_connected {05}
US2_connected {02}
US1_connected {01}
ua_select_ip {06}
toco_select_ip {06}
FECG_Cont4
FECG_Cont3
FECG_Cont2
FECG_Cont1
FECG_Clock
FECG_Gain
Toco_Adjust_Clock {05}
Toco_Adjust {05}
Toco_Data {05}
Aux_Card_Rx
aux card (FECG) serial communication
Aux_Card_TX
pox_serial_output
CS_Agc_US2 {02}
CS_Toco_Adjust {03,05}
ecg_bleep {06}
CS_Agc_US1 {01}
U/D {01,02}
Vcc
86
85
94
93
92
91
90
89
88
87
27
26
25
24
23
22
21
20
84
83
82
81
78
77
76
75
10
9
8
7
6
5
4
3
104
103
102
101
100
99
98
97
112
111
110
109
108
107
106
105
3
U18
1
OUT
ZM33064Z
IN
U19
MC68HC812A4
Vcc
VRL
VRH
AN8
AN7
AN6
AN5
AN4
AN3
AN2
AN1
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
PH7
PH6
PH5
PH4
PH3
PH2
PH1
PH0
PJ7
PJ6
PJ5
PJ4
PJ3
PJ2
PJ1
PJ0
SS
SCK
SDO/MOSI
SDI/MISO
TXD1
RXD1
TXD0
RXD0
PT7
PT6
PT5
PT4
PT3
PT2
PT1
PT0
3
3
R126
10K
Vcc
36
37
38
39
48
49
50
51
44
47
46
40
19
68
69
70
71
72
73
74
35
34
33
32
31
30
29
28
18
17
16
13
12
11
67
DDP[7]
DDP[6]
DDP[5]
DDP[4]
DDP[3]
DDP[2]
DDP[1]
DDP[0]
66 ADP[14]
65 ADP[13]
64 ADP[12]
63 ADP[11]
62 ADP[10]
61 ADP[9]
60 ADP[8]
59 ADP[7]
58 ADP[6]
57 ADP[5]
56 ADP[4]
55 ADP[3]
54 ADP[2]
53 ADP[1]
52 ADP[0]
reset2
XIRQ
IRQ
R/_W
LSTRB/TAGLO
ECLK
IPIPE0/MODA
IPIPE1/MODB
ARST
XFC
XTAL
EXTAL
RESET
BKGD/_TAGHI
CS0
CS1
CS2
CS3
CSD
CSP0
CSP1
D7
D6
D5
D4
D3
D2
D1
D0
A21
A20
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
4
XTAL2
EXTAL2
R127
10K
reset2
debug2
4
Vcc
R128
10K
R129
16K
C116
33nF
R130
10K
R131
10K
Vcc
C117
3n3F
XTAL2
EXTAL2
C118
22pF
Vcc
ADP[14]
ADP[13]
ADP[12]
ADP[11]
ADP[10]
ADP[9]
ADP[8]
ADP[7]
ADP[6]
ADP[5]
ADP[4]
ADP[3]
ADP[2]
ADP[1]
ADP[0]
2
25
23
31
30
3
27
24
28
29
4
5
6
7
8
9
10
11
ADP[0:15]
U20
C119
22pF
R132
10M
5
12MHz
X3
O7
O6
O5
O4
O3
O2
O1
O0
DDP[0:7]
5
27256PLC
VPP
OE
CE
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
R166
1R
25
24
21
23
2
26
1
ADP[3]
ADP[4]
ADP[5]
ADP[6]
ADP[7]
ADP[8]
ADP[9]
ADP[10]
ADP[11]
ADP[12]
ADP[13]
ADP[14]
18 DDP[3]
19 DDP[4]
20 DDP[5]
21 DDP[6]
22 DDP[7]
pox_led_drive_line2 {03}
pox_led_drive_line {03}
pox_sensor_type_line {03}
pox_photo_diode_bias {03}
pox_signal_shield {03}
pox_photo_diode_signal {03}
OE
WE
CS
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
28
19
18
17
16
15
13
12
11
10
9
11
7
12
6
13
14
3
5
15
4
16
2
8
DDP[7]
DDP[6]
DDP[5]
DDP[4]
DDP[3]
DDP[2]
DDP[1]
DDP[0]
C121
100nF
J14
Vcc
1
S1
Debug Control
6
5
4
3
2
1
Vcc
D7
D6
D5
D4
D3
D2
D1
D0
C120
100nF
6
pulse oximeter interface
reset2
Vcc
HM62256
debug2
pox_cable_shield {03}
22
27
20
3
4
5
6
7
8
15 DDP[2]
9
10
ADP[2]
14 DDP[1]
ADP[0]
ADP[1]
13 DDP[0]
U21
Vcc
6
C123
100nF
C124
100nF
pox_serial_output
Vcc
C122
100nF
ADP[0]
DDP[7]
5
4
3
2
1
24
23
22
DDP[5]
DDP[6]
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
DDP[4]
DDP[3]
DDP[2]
DDP[1]
DDP[0]
ADP[9]
ADP[8]
ADP[7]
ADP[6]
ADP[5]
ADP[4]
ADP[3]
ADP[2]
ADP[1]
OEr
INTr
BUSYr
WEr
CEr
D7r
D6r
D5r
D4r
D3r
D2r
D1r
D0r
A9r
A8r
A7r
A6r
A5r
A4r
A3r
A2r
A1r
A0r
Vcc
46
48
49
50
51
34
33
32
31
30
29
28
27
36
37
38
39
40
41
42
43
44
45
52
D[7]
D[6]
D[5]
D[4]
D[3]
D[2]
D[1]
D[0]
A[9]
A[8]
A[7]
A[6]
A[5]
A[4]
A[3]
A[2]
A[1]
A[0]
Vcc
7
Copyright
ultratec 2003
1
2
Issue
PR
ECN
8
Date
June 03
May 06
of 6
Fetatrack 360 Digital Signal Processing
8
Drg No:
Drawn: NAS
Lodge Way
Portskewett, Caldicot
Date:
South Wales. NP26 5PS. UK Name: FETA36~3
Sheet 4
WR {03}
cs_dpr {03}
D[0:7]
A[0:16]
Ultrasound Technologies Ltd
CY7C131
OEl
INTl
BUSYl
WEl
CEl
D7l
D6l
D5l
D4l
D3l
D2l
D1l
D0l
A9l
A8l
A7l
A6l
A5l
A4l
A3l
A2l
A1l
A0l
U22
7
D
C
B
A
D
C
B
J16
1
Toco Connector
6
5
4
3
2
1
tdr_sense_iup
tdr_sense_toco
toco_signal_return
toco_negative_exe
toco_positive_exe
tdr_sense_iup
tdr_sense_toco
2
I-
11
3
2
10K
R139
Vcc
D20
BAS16
D22
BAS16
D19
BAS16
Vcc
D21
BAS16
5
6
7
8
7
Vcc
3
3
11
R141
10K
LM336M
2.5V
U25
C125
100nF
IUP_connected {04}
I5
6
5R
VM
VP
R144
470R
Vcc
I+
LM324M
neg12V
U23
10K
R142
4
+12V
Toco_connected {04}
SCLK
MAX549
OUTB
CS
REF
OUTA
DIN
VDD
GND
Auto Zero Control
4
3
2
1
U24
toco dc excitation 5.3V
toco_negative_exe
I+
LM324M
4
neg12V
R137
10K
1
U23
R136
10K
Toco_Adjust_Clock {04}
Toco_Adjust {04}
CS_Toco_Adjust {03,04}
toco_positive_exe
10K
R138
+12V
R134
100R
R135
100R
R145
10K
C126
1uF
Toco_VRef
10K
R148
4
9
4
I+
11
neg12V
C128
100nF
C127
100nF
neg12V
U23
+12V
LM324M
I-
+12V
R152
10K
10
toco_signal_return
Toco_VRef
4
R154
10K
R153
10K
8
I+
U23
neg12V
11
LM324M
I-
+12V
4
5
14
100K
R156
5
toco input amplifier gain = 3.3
12
13
100nF
C129
33K
R155
A
2
47K
R140
8
4
R143
220K
4K7
R146
R147
100K
1
3
1
3
1
3
1
3
1
R151
10K
10K
R149
10K
R150
330K
R157
R167
1K0
I+
TL072
I-
220K
R158
R187
1K0
6
5
I-
TL072
I+
100nF
C131
neg12V
1
7
U26
+12V
U26
neg12V
+12V
toco filter gain = 2
C130
1uF
3
2
4
8
8
4
6
6
C132
100nF
1K0
R159
3
2
C134
100nF
D23
BZX84C5V1
Copyright
ultratec 2003
Adc
7
Lodge Way
Portskewett, Caldicot
South Wales. NP26 5PS. UK
8
1
Issue
Toco_Data {04}
8
ECN
Toco_A/D_CS {03}
Date
June 03
of 6
Toco_Adjust_Clock {04}
Fetatrack 360 Toco Circuit
5
6
7
8
Drawn: NAS
Drg No:
Date:
Name: FETA36~3
Sheet 5
GND
DOUT
CS
SCLK
MAX1243
U27
Toco_VRef
REF
SHDN
AIN
VDD
toco_ua_signal {06}
4
3
2
1
Ultrasound Technologies Ltd
toco_signal {06}
C133
100nF
Vcc
7
D
C
B
A
D
C
1
+
C136
100nF
100R
R160
Vcc
neg12V
CS_Volume {03}
U/D_audio {03}
INC_audio {03}
C135
100uF
US1_audio {03}
US2_audio {03}
FH2_Audio {02}
toco_signal {05}
7
2
1
8
CS
U/D
INC
VSS
U28
DG211
IN4
D4
S4
Gnd
V-
S1
D1
IN1
VCC
8
7
6
5
4
3
2
1
X9C103
VL
VW
VH
IN3
D3
S3
VL
V+
S2
D2
IN2
15
16
6
5
3
2
15K
R161
9
10
11
12
13
14
ua_signal {04}
FH1_Audio {01}
Vcc
C137
100nF
47K
R162
C138
100nF
+12V
ua_select_ip {04}
2K7
R190
toco_select_ip {04}
100nF
C139
1uF
C170
U29
toco_ua_signal {05}
R163
1k2
B
10K
R164
3
2
3
I+
TL072
I-
ecg_bleep {04}
1
+12V
U34
neg12V
4
3
AC2
alarm {03}
R188
1K0
R189
1K0
6
5
I-
TL072
I+
+12V
330K
R169
C142
1u0F
neg12V
+
7
U34
4
C147
10,000uF
8
9
C148
100nF
R172
22R
R170
1K0
Vcc
R171
22R
4
C144
1000uF
DCD24
PrintVoltageOn/Off {03}
3
DC+
1
10K
R173
C146
100nF
C145
100nF
+
5
C149
120uF
IN-
+
C150
220uF
U30
6
L9
22uH
TDA2614
IN+
7
2
1
B
1
2
3
GND
VIN
R174
10R
C151
100nF
A
5
E
C
5
R178
22K
R177
100K
C153
10nF
R176
2K7
+
VSW
2
3
FB
B
1
VC
U31
LT1076CQ
E
C
R175
100K
4
Q13
RFD8P05SM
S
3
2
1
J18
5
C156
10nF
R179
2K7
FB
VC
VSW
C155
1uF
4
R181
2K2
2
+
C160
100nF
Vcc
+24V {03}
C161
1uF
7
+
R185
2K2
R184
1K0
R183 +
12K
C163
330uF
+
BZX84C10V0
D30
BZX84C5V1
D29
22uF 100V
C166
+12V
Copyright
ultratec 2003
7
Lodge Way
Portskewett, Caldicot
South Wales. NP26 5PS. UK
Ultrasound Technologies Ltd
C164
100nF
C165
100nF
NOTE
alternate versions of L10 and L11 require different pinout
C159
22uF 100V
6
R182
100R
C158
330uF
C157
100nF
VR2
2K
Vout
Adj
R180
2K7
Vin
U33
LM338T
3
GND
VIN
U32
LT1076CQ
Speaker
C154
220uF
BC848B
Q12
AC1
15K
R168
BC848B
Q11
3
G1
D25
2
1
2
1nF
C140
2
1
10BQ040
D
2
3
J17
100nF
C141
L10
100uH
2
GBU4A
100nF
C143
2
1
1
D26
2
1
2
1
1
L11
100uH
AC Power Input
D27
6
2
5
1
4
L12
100uH
3
2
2
10BQ040
10BQ040
1
2
2
3
Q14
FZT751
10uF
C167
+
ECN
PR
1
2
8
Date
June 03
May 06
of 6
neg12V
C168
100nF
Issue
8
Power supplies and Audio circuit
Drawn: NAS
Drg No:
Date:
Name: FETA36~3
Sheet 6
R186
4K7
C
2
1
C152
120uF
+
E
3
A
4
27K
R165
4
8
1
1
8
4
2
3
2
3
B
D
C
B
A