Service manual

D901 short and I902 open
Brightness
VCC12V
ON/OFF
5V
5V
D914
1N4148
R927
2.2K/1%
R906
10
C920
330PF/50V
R933
JUMPER
R930
5.1K
R905
1.5M,3KV
R911 10
C902
22P,3KV
R912
10
R909
2.2K/1%
P901
1
2
R935
JUMPER
R937
698/1%
R936
698/1%
C924
68nF
C905
5P,3KV
C923
0.1uF
R923
110K/1%
D921
NC
C909
330PF/50V
D920
NC
T902
2374300800
71,2
3,4
105,6
C908
0.056UF/50V
C916
22P,3KV
D916
SB140
C917
0.1uF
P903
1
2
R926
91K/1%
C907
0.1uF
R921
5.1K
R922
5.1M
C901
47nF
R920
698/1%
R919
698/1%
C921
0.1uF
D905
1N4148
D908
1N4148
D907
1N4148
+
C922
470U/16V
D911
1N4148
I901
OZ9932G
1
2
3
4 5
6
7
8
SST
CT
GNDA
DRV2 DRV1
VCCA
VSEN
ISEN
D913
1N4148
D909 SB140
L901
BEAD
R929
51.1K/1%
D919
1N4148
AP9977GM
Q911
1 2 3 4 5
6 7 8
D902
1N4148
R903
NC
D906
1N4148
D901
1N4148
C911
68nF
+
C915
33uF/25V
R918
1M
R914
681 1%
C910
0.1uF
C928
0.1uF
D910
1N4148
I902
78L05
2 3
1
IN OUT
GND
C925
0.1uF
R915
JUMPER
D903
1N4148
D912
1N4148
C927
1000P
C913
330P
C926
1000P
C912
27P
R908
10K
R916
JUMPER
D917
1N4148
Q907
2N7000 DIP SGD
AP9977GM
Q905
1 2 3 4 5
6 7 8
R924
1M
Q908 2N7002 DIP SGD
T901
2374301105>2374301204
71,2
3,4
105,6
P904
1
2
+
C906
470uF/16V
C919
0.056UF/50V
R910
NC
C918
5P,3KV
Q910 2N7000 DIP SGD Q909 2N7000 DIP SGD
P902
1
2
C914
0.01uF
D915
1N4148
R932
681 1%
D918
1N4148
R925
1.5M,3KV
R907
10
R934
1M
C904
1000P
R928
NC
Q901
2SC945P
C903
1000P
10.8. INVERTER
ViewSonic Corporation Confidential - Do Not Copy VA902-3_VA902b-3
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