ViewSonic VG1930wm-3 Service Manual page 79

CN10
10
BL_ON
9
BL_ADJ
8
7
6
5
4
3
2
1
HEADER5X2
F2 F1
24V/5A/DIP/NC 24V/5A/NC
DIP
VCC_PANEL
R79
R80
10K
10K
Q9
R82 4K7
1
7 on_Panel
MMBT3904L
C42
0.1uF
S3
VCC_3.3
L1206
1 2
S5
+5V
L1206
1 2
S12
+12V
L1206
1 2
ViewSonic Corporation
+5V
BL_ON
L10 L1206
1 2
MLB-201209-0220P-N2
C85
+
TC20
220uF/16V 0.1uF
+12V
L11 L1206
1 2
+12V 3
MLB-201209-0220P-N2/NC
C86
+
TC21
220uF/16V/NC 0.1uF/NC
VLCD
VLCD 5
VCC_PANEL
Q8
R81
AO3401
0
R83
+
TC10
10K
10uF/16V
VCC_PANEL
76
Confidential - Do Not Copy
+5V
+5V
R67
10K
R68 0/NC R69
10K
Q5
C38
R70 4K7
1
0.1uF/NC
MMBT3904L
+5V +5V
R73
R72
1K 10K
BL_ADJ R74 4K7 R75 0/NC
Q7
C41
R77 4K7 -> 100K
1
Adj_BACKLIGHT 7
1uF
MMBT3904L
DVI5V
VGA5V
4 DVI5V VGA5V 4
+5V
3,4,7 +5V
D28 D27
SSM12L
BAT54C-GS08
T0-263
For 15" 3.3V Panel
U5 1084-33CM/NC
VCC5V
3 2
VI VO
4
VO
C43
0.1uF/NC
03/21 MODIFY
T0-252
U10
3 2
VIN VOUT
C81
1 4
ADJ TAB
0.1uF 1117-33
VG1930wm-3
on_BACKLIGHT 7
D25 1N4148
Q6
B
CHT2907
D26
1N4148
R78
100
Recommond to used "Blue" parts circuit
for VCC1.8V if you want to suppoert DDC
function when system power off
VCC_3.3
TC11 C44
+
100uF/16V/NC 0.1uF/NC
L12 L1206
1 2
MLB-201209-0220P-N2/NC
VCC3.3
VCC3.3 5,7
TC22 C80
+
0.1uF
100uF/16V
VCC1.8
VCC1.8 7
VCTRL 7
R71
50
TC9
+
4.7uF/50V
R76
2K
VCC3.3
VCC3.3 5,7
ViewSonic Corporation
Model
Title
POWER (DC TO DC)
Date Rev: