Service manual

59
ViewSonic Corporation Confidential - Do Not Copy VA503b-2_VA503m-2
Model
Title
Date Rev:
ViewSonic Corporation
POWER SUPPLY
PGND
ON/OFF
VOL
MUTE
BRIGHTNESS
VCC3.3V
VCC3.3V
+14V 3,4
R801
2M4
R804
68
+
C815
47u/25V
ZD802
P6KE200A-LF
R821
1M
R802
10
C813
47p/1KV
R808
10K
CN801
90mm 8P
1
2
3
4
5
6
7
8
C824
3300p/400V
R820
1M
+
C805
82u/450V
C803
4700p/1KV
P801
AC_SKT
1 2 3
D805
SRF1040CM
1
2
3
ZD803
NC/3V9
D803
SRF10100C
1
2
3
R816
6R8
R810
51K 1%
R809
100 1%
+
C812
1000u/10V
L801
12mH
41
32
+
C814
47u/25V
R814
1K
L802
5uH
D806
A02-LF
Q801
NC/PMBT3904
1
32
+
C808
680u/25V
R819
NC/10K
IC803
TL431
3
1
2
+
C810
220u/25V
R822
2M4
C806
2200p/250V
C823
NC/0.1/50V
R805
2M4
C802
1000p/500V
R812
6R8
R817
8K2 1%
R828 100 1W
IC801
LTV817M
3
14
2
R807
510K
C811
1000p/500V
R811
1K6 1%
R825
470K
R823
2M4
R827
10K
D804
MUR1100ERL
R818
3K3 1%
C801
2200p/250V
ZD805
12V
R815
1K
IC802
TOP245YN
1
2
3 4 5
6
C
L
X S F
D
C816
0.1/100V
R813
NC/1K
T801
SPW-065
1
2
3
5
4
8
6
7
11
9
10
ZD801
12V
C804
0.47/275V
R806
10
ZD804
NC/16V
R829
200
C820
2200p/400V
R824
510K
+
C819
47u/25V
Q802
2SC1815
1
3
2
+
C818
47u/25V
C822
0.1/50V
D809
1N4148
-+
D801
BL4-06
1
2
4
3
RT801
NTC 5R
F801
2A/250V
R803
510K
L803
5uH
B801
Bead_Jumper
C817
0.1/50V
C821
0.1/50V