Schematic Diagram - ViewSonic VX712 Service Manual

12. Schematic Diagrams
12.1 Power
L114
NC
CN101
VOL_ADJ
OUT L+
OUT L-
NC C101
NC
+12V
CN103
1 2 BL_ON_OFF
3 4 BL_ADJ
5 6
7 8
9 10
11 12
CONN
+5V
R112
R115 1K 1/16W
10K 1/16W
BL_ADJ
R101
Q101 4.7K
1
C114 PMBS3904
1uF/16V
0805
+5V
C
2N3904
R119 2N3906
1K 1/16W
R121 B E
220 1/16W
BL_ON_OFF
R122
Q103 4.7K
1
PMBS3904
C119
0.1uF C120
0.1uF
+12V +5V
NC
L115
MENU_KEY
LED_GREEN
AUTO_KEY
RIGHT_KEY
POWER_KEY
R105 NC
STDBY
R108 NC
MUTE
OUT R+
OUT R-
C108
NC
D115 SS14
VCC+5V
+12V VCC+5V
+5V
+
C109
C113 100uF/16V
+
100uF/16V
1/16W
BRIGHTNESS
modify 05102004
+12V
MCU_VCC
R217 R218
10K 1/16W
10K 1/16W
R220 4.7K 1/16W
1
PANEL_PW
1/16W
BACKLIGHT
C180
0.1uF
ViewSonic Corporation
R102 NC
R103 0 1/16W
R106 100 1/16W
R109 100 1/16W
R111 100 1/16W
OUT L+
OUT L-
C102 C103 C104 C105
0.001uF 0.001uF 0.001uF 0.001uF
U101
AIC1084-33M
3 2
VIN VOUT
1
ADJ
+
C111 C110
0.1uF 22uF/16V
VOL_ADJ
L113
NC
PANEL_POWER
+5V
+
C115 C116
22uF/16V 0.1uF
R219
NC
U108
AO3401
Q107
PMBS3904
R113 0 1/16W
+5V
R114 NC
+3.3V
R216 NC
+12V
- 76 –
CN102
1 2 R213
3 4 R104
5 6 R107
7 8 R110
9 10
11 12
13 14 OUT R+
15 16 OUT R- C106 C107 C179
0.001uF 0.001uF 1uF/25V
VCC+5V
D116
+3.3V
U102
GS1D
RT9164
3 2
VI VO
C176
C112
0.1uF 0.1uF
+5V
added 082704
R116
R117 NC
NC
R118 NC
Q102 1 R120 NC
C117 C118 NC
NC NC
Title
ViewSonic
Size Document Number
POWER
Date: Thursday , Decem ber 02, 2004 Sheet
Confidential - Do Not Copy
NC
LED_BLUE
0 1/16W
LED_ORANGE
100 1/16W
ENTER_KEY
100 1/16W
LEFT_KEY
+2.5V
C177
1uF
VOLUME
Rev
T1
2 of 4
VX712