Schematic Diagram - ViewSonic VA712b-2 Service Manual

11. Schematic Diagram

11.1 Power
+12V
CN701
BL_ON_OFF
1 2
BL_ADJ
3 4
5 6
7 8
9 10
11 12
CONN
+5V
R704
R701 1K 1/16W
10K 1/16W
BL_ADJ
R705
Q701 10K
C708
1uF/16V PMBS3904
0805
+5V
R708
NC / 1K 1/16W
R709
220 1/16W
BL_ON_OFF
R710
4.7K
Q702
C711
PMBS3904
0.1uF
+5V
delete
R715,R720,C712
R716
R723
10K 1/16W
10K 1/16W
R722 4.7K 1/16W
Q704
PANEL_PW
C718 PMBS3904
0.1uF
ViewSonic Corporation
D701 SMAL140
VCC+5V
+12V
+5V
TO-263
VCC+5V
U701
C701 3
VIN
+
1
ADJ
100uF/25V C702
C704
+
AIC1084-33PM
470uF/16V 0.1uF
1/16W
BRIGHTNESS
C
2N3904
2N3906
B E
1/16W
BACKLIGHT
PANEL_POWER
C713 +3.3V +5V
C716
+
100uF/25V 0.1uF
R717 R718
U703 NC 0
R721 51K 1/16W
AO3401L
C717
C720 R724
+
0.1uF
10uF/16V 10K 1/16W
VCC+5V
D702
U702 NC / AP1117 1.8V
3
VIN VOUT
GS1D
C719
+3.3V +
+3.3V
2 100uF/25V
+3.3V
VOUT
3.3V_Vd
C703
C705
+
100uF/25V 0.1uF
FB702
600 OHM
+12VA
+5VA
FB703
CN702
1 2 600 OHM
3 4
5 6
VOL_ADJ
7 8
9 10
OUT_L+
11 12
OUT_L+
OUT_L-
13 14
OUT_L-
C709
0.1uF
FB701
600 OHM R712
10K
VOL_ADJ
C715
C714
1uF/16V 0.1uF
0805
1/16W
Title
Size Document Number
Date: Thursday, July 28, 2005
- 76 –
2
1.8DVCC
DEL
C706
R702,R703
C707 +
0.1uF
100uF/25V
DGND
+12V +5V
R706 10K 1/16W
STDBY
R707 10K 1/16W
MUTE
OUT_R+
OUT_R+
OUT_R-
OUT_R-
C710
0.1uF
+5V
R711
NC
1/16W
R713 0 1/16W
Q703 B R714 NC
VOLUME
NC
715G1675-B
Rev
POWER T1
Sheet 1 of 4
ADC_1.8AVCC
RTD_1.8DVCC