9&iAN9
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(- IIF100AF100H SERVICEI{ANUAL
This manual is estabhshedfor repai-r'adju^stment
of portable x-ray deviceHF100
and HF100H.
Copy and transfer without notice is prohibit€d.
contents
No.
l.Introduction
1
2.Specifications
I
3.Operating procedures
=A
4.Pre-adjwtment
b
5.Re-adjustmentof kV
11
6.Re-adjustment of Pre-heat
time and mA
13
?.Re-adjustmentof exposuretime
16
S.Sampleof output waveform
L7
9.Circuit fiagram
18
1O.Referencematerials
19
L. Introduction
This service manual is appJJed
for HFl00 and HF100H x-ray unit.
HF100H is human use version. But there are mechanicaiand electric parts which are not
exchangeable. So,replacementon repair should be donecarefuliy.
Major differencebetweenHF100 and HF100H are as follows,
Parts
Collim ator mounting ring
Key boardPC.BoardO{3107A)
Timer P.C.BoardCA{31084)
Control P.C.Board0\49112)
Inverter GV19111)
Insert Box
Coliinator transformer
HFiOO
}IFiOOH
for R-120H
20mA
20mAfixed type
for R70
for HF100H
for HF100H
exchangeable
exchangeable
exchangeable
for R-i20H
exchangeable
exchangeable
exchangeable
for R70
-1-
2. SPECIIIICATIONS
POWER:
Range
Minimum voltage with no load
Maximum voltage qrith no load.
Frequency -----Elecbricity consumptionat 120V
Maximum voltage consumption_-_-----
NoTE :
100 - 130VAC
100vAc
l4OVAC
50/60H2
minimum 20A(40kD
maximum B2A(i00k\D
3.5kVA+LA%
This unit would be sererely drnaged if it
is 'sed, with incorrec.t line voltage.
OIIIPUT :
Inverter :
12}krrz hish frequencyi-nvertersystemwith
neutral ground
circuit, 2kW . 60kIIz inverter.
tube potential feedbacksvstem
tolerance +BkV or -+ tON
Filament circuit:
0.b Watt
4SkTlzinverter
tube cr:rrent feedbacksystem
tolerance +L0%
pre-heattime : approximately 2sec.
WARM uP TIME :
Approximately 10 secondsa-ftereach exposure
and after the initial power on-
X-RAYOIIIPUT:
Maximum tube voltage : 100kV + LOo/o (adjusted gZ.5
_ ggkv)
ar
Minimum tube voltage : 40kV + I0%
(adjusred at 41 _ Bgk\|
kV switch :
2kV steps
tube current :
20nA + IA% constant (adjusted.at
lgmA)
timer range - HFl00 :
0.01- 2.00 sec. 0.01 sec.steps
HF1OOH: 0.08- 4.00 sec. 0.01 sec.
steps
(adjusted at eachvalue + L% of
time base pulse
of 100H2)
X-RAY TT.IBE:
TOSHIBA D.124S
focal spot size : 1.2mmX 1.2mm
targetmaterial: tungsten
angle:
16o
anode heat storage eapacity: 14kJ (Z0.0klII,
-2-
COLLIIVIATOR: Continuousiyadjustableiight beam type with central ray indicator, and cassette
size/distanceto aid in correctpositioning.
R-i20H
On time :
90 sec.
buib :
Fuji Lamp Inc. , No. JC12V40W
product life :
longer than 50 hours
Illuminanee:
over 160lux at 21" SID
Contrastratio: over 3:1 at 3:1 at 211SID
R70
Refer instruetion manual of Advantech.
FILTRATION :
inherent filtration
coilimator filtration
totai frltration
WEIGHT :
HFi00 ---- i6.5kgs
HF100II --- 18.5kes
SIZE:
HF100---29 cm (W) x 23 cm (H) x 40.0cm (L)
HF100H -- 29 cm @ x 23 cm (FD x 38.bcm (L)
2.2mm Al
0.5mm Al
2.7mm Al
POWER CORD: 3.6m
EXPOSURE CORD: 3.0m
-3-
3. OPERATINGPROCEDTTRES
CoNNEcTIoN : After confirmingPowER coRD and EXPOSURESWTTCH
are usualcondirion,
connectthem to mainbodyof x-ray unit certainly.
(If connectorhaslock,confirmit is locked.)
Confilu POWERSIMITCHis OFF and connectPOWERCORDto waII receptacie
of propermains.
flMhenyou usedextension
eord.,
B.bkwshouldbeobtained..)
PowER olrl :
SetPoWERSwITcH on controlpanelto on,then eachindicatorwill
be tr:rnedon.
Whenthe unit is warmin8up,exposures
cannot be taken. After approx.10sec.,
WARL{IIP indicatorwiII go0ff. The unit is nowready to use.
CAIIMON
DO NOT SWITCHONA}ID OFF QTIICKLYINASHORT TIME.
WHEN
TURNING ONAGAINAETERTRUNINGOFR WAII FORAT
LEASr 1
MINUTE. OTEERWISE,IIIGH FREQIIENCY INIiERTER CAT.INNOT
WORK
PROPERLY.
kv SETTING :
ser kv in the rangeof 40kv ro r00kv
TiMER SETTING : Settimer in the rangeof (IIF100: 0.01
sec.to 2.00sec.)(IIF100H
: 0.0gto 4.00
sec.)dependson subject,di.s6"rr"e
andscreen/frlmcombinationTime incrementsare 0.01sec.
ADJUSTMENT OF RADIATIONFIELD :
Pressingthe sellimatorswitchwil illuminate the field for
approx.(HF100:
90sec')(IIF100H: 30sec). Adjustlight field to positionof rad.io$aph
by two
knobsfor adjr5tmentof opening. Diring this time,usethe
ad.justment
knobs
to sizethe radiographas you needRADIOGRAP}IY:
Make sure that WARIVI
UP indicatoris OFF beforepressingexposureswitch.
CAT'TION
WAnI{ UP I}TDICATORBECOMESOFFAETER 10 SEC.
ITIOM POWERON.
WARI{ UP INDICATORBECOMESOFFAETER 10 SEC.
TR,OMEACH
EXPOST'RE.
IF WAR},IUP INDICATORIS ON, RADIOGRAPHTIS
IMPOSSIBI,E.
Make sure all WARNINGLAIUpSare off.
After all safety.checks,
pressonryfirst stage
of EXposLJREswTTCH.
-Th.o,
STAI\IDBYindicatorgoesoffafter I sec.
unit is read.yfor exposure.
Presssecpndstageof E)CPOSIJRE
swrrcH. x-RAy indicator is rit and
rafiography is executedfor the time set.
The ElGoStrRE SwITcH is a pnpIvIAN sbyle. So,
if the butron is released.,
expos.reis stopped. so, hordthe buttoo ,.rrtil.rpo..il
is conplete.
WARJ\,I
UP indicatorwill light after exposure.
X-RAYBUZreRis ON and OFF(onlyHF100).
4-
NOTE: Thefirst stageof E)(POStJRE
SWITCHis pre-heafsf filamenfi.
DONTKEEPONLYFIRSTSTAGEOFEXPOSTIRE
SWTTCII"OM I.ONGERTHAN
30sEC.
POWER OFF:
When the POWER SWTTCHis pressed,all of indieatonson the control panel are
olt.
WARMNG IAN{P : HF100/TIF100Hhave 2 kinds of warning lamps. if either of them is Lit, xray cannot be generated. Eaeh detail is as follows.
KI].{D OF WARMNG I,AX{P
DETAILS
COUNTER]\,IEASURE
WARM UP
The internal circuit is
warming up.
Wait until light goes off
ERROR
Unit malfunction.
Stop exposing and follow steps
below.
X If ERROR indicator is lit even when EXPOSURESWITCH BU|TON is released, it means an
unusual situation has beenoccurred. Therefore,turn offPOWER SWITCH, wait 3 minutes,
then start proceduresover again.
X This unit generatesx-ray by an inverter. Therefore,it requires warm up time to be stable after
power on and eachexposure.
When WARM IIP indicator is ofl warm up is finished.
-o-
4. PRE-ADJUSTNENT
+ E a c hP CB o a r d sd e l i v e r df r o n i l i k a s aF a c t o r y
h a v ea l r e a d y b e e na d j u s t e d .
(svB24SB)
0utput
a n dB l a c k ( - ) o , i r e s .. A d j u s t v R t o b e 2 4 v D C+ 0 . 8 v .
Z . _ U 3 l 0a8dAj u s r n e n(rr e f e r p a g e7 )
k Y a d ju st n e n t:
I . T h i s a d j u s t m e ni ts n e e dt h e s p e c i a l t e s t e q u i p n e n (t H F
tester).
2. C h e c kt h e D Cv o it a g eb e t w e e tnh e k V t e s t p o i n t ( + )
and (-) on the
[F tester.
3 ' S e t t h e k v s e i e c t o rt o l 0 O k va n d t u r n Y R 1( l , I 3 l 0 g A )
s0 that rheDC
voltaseis S.0VDC.
4 . C h e c kt h e e a c hk V .
5 ' F i n a l v c h e c kt h e k v b v u s i n ga n e x t e r n a lk v
t e s t e r s u c ha s
victoreen
NER0'Thereadingw
s i l l i n d i c a t t i - i i t t t e l o w e rt h a n t h e t h e
a
c
t
u
a
because
o f t h e t e s t e r d y n a m i ciso r - h i g h f r e q u i n r v ' * _ r . yp r 0 d u c tl o u r p u r
ion. s0
d o n ' l a d j u s t o v e r 9 ? k Va s i n d i c a t e db v t e s t i n g
device.
n A a d ju st n e n t,
l ' T h i s a d i u s t m e nits n e e dt h e s p e c i a l t e s t
e q u i p m e n(tH F t e s t e r ) .
2 . C h e c kt h e D Cv o l t a g eb e t r e e nt h e m At e s t p o i n t ( + )
and (_) 0n the HF
tester.
3 ' s e t t h e n A i n d i c a t o rt o 2 O maAn d t u r n v R s ( l , { 3 l 0 g A )
s0 that the DC
v o lt a g e i s 2 . 0 V D C .
E r p o s u r et i n e a d j u s t n e n t :
T i m eb a s e i s 1 0 0H z ( i 0 m s e c) .
w h e ns h o r t p i n o f . p z i s p u t e d o u t ,
X-RAY
L E I i s l i t n o t r e l a t e de i t h t i n e i .
nf
T I I I Et e r n i n a l a n dG N Dt e r n i n a l b v 0 ; ; i i l o r r o p r , } { e a s u r ve0 l t a g e b e t w e e o
a n d a d j u s t b y t u r n i n ey R 6 .
I lllPORTANTD i s c o n n e ct th e c o n n e c t oIrp z o n [ t 3 t 0 g A
- i n " r pi ic. i b o a r d b e f o r ep u l ]
o ut s h o r t p i n o f x - r a v . 0 t h e r w i s e ,
a n d x - r a v n i i l b e g e n e r a t e ud n r e l a t e dr i i r r - t ibnoear r dw i I I w o r k
setting and
X - r a yu n i t n i g h t b e b r o k e n .
* P u t i n a n dp u l l o u t c o n n e c t o r s p 0 f E R
at
0FF.
-6
T
r 2v
J
{-
1 OmS
---)
X T i M EB A S E
WAYEFORI\I
REFFRENCT
E h: e r ea r e t h r e es h o r tp i n s 0 n } r 1 3 1 0 (8 A
L B D ,I 0 S E Ca n d I E S T) .
E a c hf a c t o r sa r e a s f o l l o r s .
LBD:
l0SEC:
i { h e np u t i n , l i g h t i n e t i m eo f c oI l i m a t o ri s 4 5 s e c .
i { h e np u l l o u t , i t i s g 0 s e c .
Whep
n u t i n , i l / A RUl p
r |t i m e i s I s e c . l Y h e pn u l I o u t , i t
is l0 sec.
T h i s s h o r t p i u i s f o r a d j u s t n e n at t f a c t o r y
b e f o r es h i p m e n ts.o , d o n ' t u s e t h e u n i t c i t h s h o r t p i n .
TEST:
N e v e rp u l i o u t t h i s s h o r t p i n .
( refer pageg )
+
t
+
?
+
?
o v e r v o l t a g e p r o t e c t i o nc i r c u i t Y R I )
g y e r c u r r e n t p r o t e c t i o nc i r c u i t vRz)
D Cv o l t a g e a d j u s t c i r c u i t ( V R 3
a d i u s t i n g t h e D Cv o l t a g eh a v et o u se s p e c i
a l e q ui p n e n t .
( r e f e r p a g el 0 )
Adjustneno
t f
Adjustneno
t f
A d j u s t m e not f
A d j u s t m e not f
frequenco
yf Inverter
(VRl)
p r e - h e a tt i n e . ( Y R 3 ) b o a r d .
k V .( V R 4 )
n r A(.y R S )
-e
P
A\oDE
ftTt
M31O7AII
EP M9ll0
WODE
M
FlwEtaT
n
tr'l0r
F
SODE
dD
M9110
qNODE
o
ffiT
FIN^SST
T
fl
bl
i cou-nunron
i
PARTSPRICELISTFORMINXRAY
HF1OO
INDEX
NO.
a
I
PARTS
NO.
DESIGNATION
10606 Collimator
R-1?0ttM2(yellow)
la
10607 lndicationplate(lN)
1b
10608 Indication
pbte (OUT)
1c
10541 Plastic front for collimator
2
10762 Case bottom (Yellow)
3
10586 Plasticfoot (TM-127No.2)
4
10753 Tape measure(Yellow)
tr
10688 Fuse holder
6
10754 3-pin powerrecepteqlg(CM-t t
7
1 0 7 5 5 Exposure switch cord receptaqle(65g02-004)
I
10689
I
1 0 0 8 1 Nylonwasher
10
10082
Metal sDacer
11
10083
Split lock washer
12
10084
Holdingscrew
13
| 0690 Mounting plate (without degrees)
14
10259 Holdingpart
15
10703 Handle(yellow)
16
10594 Rubbergrip
17
10265 Omament olate
1B
10682 lndicatingplate
19
I 0585
20
1 0 7 6 1 M9111PC board(lnverter)IZOV
21
10 6 9 2 Side frame
22
23
| 0694 fulber piate(Bottom)
10693 Rubberplate(Side)
24
I 0695 1F701inqertbox(HFl00/200)
25
10590 Brassring
26
10696 Chassis
27
I 0697 Spacer(M3x5)
28
10698 M9112 PC board(Control)
29
10764 Collimatortransformer(HT-l 2I )
30
10 7 5 0 SVB24SAPC board(100V)
31
10700 M3lqB PCboard(Timer)
32
10585 Spacer(M3x10)
Mounting plate (without degrees)
Spacer (M3x10)
HFtm fi)
PARTSPRICELISTFORMINXRAYHFl OO
INDEX
NO.
PARTS
NO.
DESIGNATION
33
10701 M3107PC board(Kevboard)
34
107A2 Soacer(M3x6)
35
10703 M3106PC board(with cord)(lndicator)
36
10765 Case top (Yeflow)
37
10705 Mountins plate for level indicator
38
10706 Level indicator
39
10707 Cord hood
40
10708 Rubberblock
41
10709 Plastic shield plate
42
1 0 7 1 0 Sheet kev plate
€
1071
44
10712 Powerswitchsheld(MURON-FH)
45
1 0 7 1 3 LED indicatinglamp (Green)
46
10714 LED inciicatinelamp (Oranee)
47
1 0 7 1 5 LED indicatins lamp (Red)
48
1 0 7 1 6 Cover plate
49
10766 Front panel (Yellow)
50
10732 Exoosure switch complete
51
10767 cap bolt (4M-5)
52
10584 Lead cap with l.Omm Al. Filter
53
10768 Nut plate
54
110V
mountinenne(HF200.HF100)
10769 Colfimator
55
10770 Rotatine pedestal of collimator
56
10 7 7 1 Shaft for collimator roration
3t
r0772 Knob for collimator rotation (MSA-l45)
58
10773 Ball oluneer(BSU6)
60
10774 Spacer for collimator rotation (4ER-3)
Power switch
_=o,
-r)li
N
W
AM
&
u
@
ffi
@
a
|N
;
n
dbe
[-il]
6'tr
9
-. mr
@
(ul
<u I--
im
l:ut
mr.
I
i
I i
l-tu.ro.I.r!rr.
*"T__
*
l r { g l l i P CB 0 A R aDd j u s t m e n t
=i
f.)x
;;O
T h i s a d j u s t m e nht a s t o b e d o n e a f t e r c o n n e c t
U u t 4 c t u a l e x p o s u r ei s n 0t n e c e s s a r y .
0 l c 0 n n e c t 0 r sc 0 m
E a c hP C b o a r d sd e l i v e r e df r o ml ' { i k a s aF a ct o r y h a v eaI r e a d yb e e na d ju st e d .
1 . A d j u s t m e n0r f v R 3 ( D C 3 7 0) V
A d j u st v o l t a s e b e t w e e 3
n 7 0 V( + )
YR3.
2. A dj u s t n e n t o f V R Z ( O v e rC u r r e u t
A d ju st v oI t a g e b e t Y e e n
O C P( + )
YR2.
nl
A dj u s t m e n to f V R I ( 0 v e r V o i t a g eP rot e ct l 0 n
A d j u s t v o i t a g eb e t w e e O
n V P( + )
ND
I f a c t u a l m e a s u r evdo l t a g ew o u l db e B
raltt
b
cl
rcuit )
a c a nb e c a l c u l a t e d
as folioning.
a = $ x 0 .0 0 6 1
9-
Ngi I 2 PC BOARDadj ustment
MIx:Is'rzeI
:lir:L
t
{sl:t(
F'=
l6,1.;:-;
coil=
t: t:- (
+:2
*-'l',e
I
i:
u'
'it'
o
g
4
u
r
-'l
:,1,i
2 i i i : l +;f-l
r
r=tA I-]
.T
il%n
oRt
u . r , , , - \+c n f f i + =
:
_--",r/
\(-)-",.^,82e#G.rr
-ll r"
s|tY:',,1
/ pYll:',,,d
i"l l- '''l-h.&
F:++=t_l:
JL lli:t :
3tflk
pF'ffi
^
;=,
-'i,a,u:s
,C*E
=
B
t,-lnt*-f^
{Lj
v
*l
:.dtr{=l;,@
+tf-l-i;.i,
t=
-lf-
ll-V\
-
/lVnl r
+n65
tuif@p*qi,D.=;,H*it
I i {,ii=(
1''l
>11,li).r*-gi P''- :;\<
J'i
Y[stPai
I
?
,,,r( FY=ll;( l-
ilo'o
jl'rr^'lufi
SfLl
-. ,
f=$=g=
r:*=r=t{=l+'ltt*-MA
tp n5{
Rso
$
* rx
rjJ-.s
t='ffit
J,,{=ffi:,
ff:-+.+=1il't
1'-1
- |
^.,r-'^Ij"-y
or! (!(r
u?,,. Enslorocro
T hi s a d j u s t m e nh! a s t o b e d o n ea f t e r c o n n e c ta l l o f q o n n e c t o r Sc o m l e t e i
exp0su Ie I s !!l__4!!_q!!al
+ E a c hP C b o a r d sd e l i v e r e df r o ml { i k a s aF a c t o r vh a v ea l r e a d vb e e na d j u st e d '
t f FQi
i . A d j u s t n e no
A dj u s t f r e q ue n c yb et w ee n F Q I( + )
2 . C h e c ko f F Q z
C h e c ki f J r e q u e n cbye t r e e nF Q z ( + a) n dG N D ( - i)s 9 0 k H z+ 5 X .
3 . A d j u s t m e Dotf P r e - H e avto lt a g e
A d j u s t v o l t a g eb e t w e ePnR E ( +a)
S E T )t o b e c e n t e r .
4 . S e t V R 4( = E P
6 . S e t V R 5 ( = l PS E T )t o b e c e n t e r .
But
5 . R e a d j u s t m e on ft k V
Th
.fIL LUd
a d j u s t n e nh
t a s t o b e d o n ea f t e r c o n n e c at l l o f c o n n e c t o rcso m p l e t e i y ,
exposure
rs not necessary.
Note
T h i s a d j u s t m e nrte q u i r e st h a t a n e x p o s u r b
e e m a d e . P l e a s eo b s e r v e
a l I r a d i a t i o n r e l a t e ds a f e t y p r e c a u t i o n s .
N ot e
T h i s a d j u s t m e nntu s t b e d o n ew h e n e v earn i n s e r t o r a n i n v e r t e r b o a r d
( M g l 0 1P
B C B )i s r e p l a c e d .
EquipmenD
t : u a l t r a c e s t o r a g eo s c i l l o s c o p ea n dD Cv o l t m e t e r .
0 s c iI I o s c o p es e t t i n g s:
Ep0M91028
C h a n n eIl
I p @ l l { 9 1 0 2 8 C h a n n e2l
I ine
D CV o lt m e t e r :
P o s i t i v ep r o v e
N e g a t i v ep r o b e
I Yolt/Div.
0.5 Voit/Div.
l0 mSec/Div.
k Y 0 9 10 2 8
c h a si s g r o u n d
X-ray unit setting:
70kY-0.1 sec.
A d j u st t n e n tV R :
v R 40 M 9I t2 B
C h e c kt h e k Y b y o s c i l l o s c o p e a, n d a d j u s t a v e r a g eo f p e a k
v a l u e o f E P w a v ef o r u rb y Y R 4t o b e 3 . 4 Y .
A f t e r t h e a d j u s t r r e n ts, e t I - r a y u n i t t o l 0 ( ) k Va n d a d j u s t
a v e r a g eo f p e a kv a l u e o f E P s a v e f o r m b y Y R 4t o b e 4 . 4 \ .
C A U T I 0 NC)h e c kt h e k Y b y u s i n g a n e x t e r n a lk V t e s t e r s u c ha s t h e V i c t o r e e nN E R O .
A n d d o n o t a d j u s t o v e r l 0 O k Va s k Y t e s t e r h a s d e v i a t i o no f t 3 k V i t s e l f .
A d j u s t b e t w e e 9n 7 . 5 - 9 9 k Y .
- 1l
b - t . t R d j u s t m eo
n ft T O k yb y t u r n i n gV R 4 l
A d j u s t r h e C H I ( E p )b v V R 4r o b e 3 . 4 v _ t 0 . 5 v .
i k y i s i n c r e a s e db v @
Tek nrrn: SkS/s
Sarnpte tllfl
( i l tI t l i r l l r
3 . . 1v
Clf I turx
3 . 7 2v
---;t
-**tl
|l
(:ht lllglr
.t.94 V
Ch I trl:r
6.7v
l
,,-raorol
6. Readjustmen
o tf P r e - H e aat n d m A
T h1 s a d i u st m e n th a s t o b e d o n ea f t e r c o n n e cat l l o f c o n n e c t o r cs o r n p l e t e l
A c t u a l e x p o s u r ei s n e c e s s a r y .
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M
PARTSPRICELIST FOR MINXRAY
HF1OOH
INDEX
NO.
PARTS
NO.
1
DESIGNATION
Collimator(R-72)
2
10749 Case bottom for HFl00H (Yellow)
3
10586 Plasticfoot (TM-127No2)
4
10753 Tape measure(Yellow)
5
10688 Fuse holder
6
10754 3-pin power receptacle(CM-11
7
10755 Exposuregwitchcordreceptacfe(65902-004)
8
10690 Mor.rntingplate (without degrees)
o
10081 Nylon washer
10
10082 Metal sDacer
11
10083 Split lock washer
12
10084 Holdi[g screw
13
1 0 7 1 5 LED indicatinglamp(Red)
14
r 0259 Holdingpgrt
15
| 0756 Front panel (Yellow)
16
10735 Collimntor mountingring
17
10736 Spacer for collimator
l8
10732 Exposure switch condcomplete
19
10585 Sp a cer(M3x10)
20
21
1 0 7 6 1 U.9111PC board(lnverter)
10692 Side frame
22
10694 Rubber plate (Bottom)
23
10693 Rubber plate (9ide)
24
10695 lF/01 insertbox(HF100/200)
25
105s0 Qqagsring
26
10696 Chassis
27
10697 Spacer (M3x5)
28
1 0 7 1 8 M9112 PC board(Control)
29
10757 Collimator transformer
30
10750 SVB24SAPC board
31
1 0 7 I1
32
1 0 5 8 5 Spacer(M3xlq)
33
10701 M3107PC boerd(Keyboard)
34
10702 Spacer (M3x6)
35
10703 M3106 PC board (with cord) (lndicator)
M3108PC board(Timer)
PARTSPRICELISTFORMINXRAY
HFl OOH
DESIGNATION
10748
) HFlOOH
Finishingwasher (M3
Ovalheadphillipsscrew(3xg)
10714
1 0 7 1 3LED indicatinglamp (Green)
Plastjc shield plate
10760 Shegt key plate
r 0 7 1 1 lqwer switch
1 0 7 t 2 Power switch sheld (MURON_
Rubberblock
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