ViewSonic VA2013wm-4, Service Manual

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41
8.2 Power Board
R920
1K 1/10W 1%
MUTE
VOL
R935
NC
1 2
FB902
BEAD
+
C931
NC
!
C909
NC/0.22uF/275V
!
R916
3.6K 1/10W 1%
ON/OFF
+5V
DIM
Q904
KTD1028
+5V
C908
0.47UF
F901 FUSE
F902
FUSE
D905
31DQ06FC3
+
C922
470UF M 16V
1
2
3
D906
MBRF2060CT
R929 100 OHM 1/4W
R900
680K OHM 1/4W +-5%
R907
1K 1/10W 1%
R928
1K 1/10W 1%
C903
1000PF/250VAC
R910 100 OHM 1/4W
+5V1
!
C902
1000PF/250VAC
F903 FUSE
R903 100 OHM 1/4W
1
2
3
4
5
6
7
8
9
CN902
Wire Harness
+
C921
1000uF 16V
1 2
3
CN901
SOCKET
C917
0.001uF
R909 100 OHM 1/4W
R930 100 OHM 1/4W
R905
0R05 1/10W 5%
C916
0.001uF
R919
150R 1/8W 5%
C923
0.001uF
1
2
4
3
IC902
PC123X2YFZOF
R912 100 OHM 1/4W
IC903
KIA431A-AT/P
+16V
C900
3300pF 250V
+5Vi
1
2
HS1
HEAT SINK(Q901)
1
2
FB901
BEAD
R913
5.1 OHM 1/4W +-5%
R917
10R 1/4W 5%
!
C914
470pF
1
2
GND1
GND
C911
1500PF2KV
D904
FR103
D903
FR107
1
2
HS2
HEAT SINK(D901 D906)
R906
100K OMH 2W +-5%
R924
0.39 OHM 2W +-5%
R901
680K OHM 1/4W +-5%
R902
680K OHM 1/4W +-5%
ZD901
T ZX18B
!
!
!
+
C920
680uF 10V
!
!
L907
Coil
+ C907
120uF 450V
R918
10K 1/10W 1%
C926
0.1uF/16V
D907
IN4148
! R931
NC
R932
NC
R933
NC
R934
NC
+ C907
NC
2
1
3
4
-
+
BD901
KBP208G
!
1
2
3
D901
FMX-12SL
!
D908
NC/IN4148
+
C925
NC
R921
NC
L906
Coil
1
3
4
5
6
7
8
9
10
11
12
T901
POWER X'FMR
L905
Coil
C927
0.047uF
R923
220 OHM 1/4W
1
4
2
3
L901
30mH
+
C913
22uF/50V
+
C918
1000uF 25V
R914
43.2KOHM +-1% 1/4W
!
R908
10K OHM 1/4W +-5%
1
2
t
NR901
NTCR
Q901
STP10NK70ZFP
R9
04
75O
H
M
+
-5%
2W
S
R925
2.43K OHM 1% 1/10W
!
C915
0.01uF
C932
100PF1KV
CT
1
COMP
2
CS
3
GND
4
OUT
5
VCC
6
NC
7
HV
8
IC901
LD7576
C912
0.1uF
C924
0.1uF/16V