ViewSonic VA930-1 VLCDS24020-1W Service Manual page 36

RP31
FBLK
OSD_B
OSD_G
OSD_R
R64
33
OSD_CLK
R65
33
OSD_HS
R66
100
OSD_VS
3V3
RP33
4.7KRP
VSYNC_MCU
C128
22P
X1
12MHZ
C129
22p
SD_MODE
VGA_CON
ASIC_RESET
INPUT_SELECT
R73
220
VSYNC_IN
C130
220P
R74
100
HSYNC_IN
C131
33P
R75 33
MCU_ISP_SCL
R76 33
MCU_ISP_SDA
SCDT
U16
3V3
PSC0
1 14
1OE_ VCC
X2 SD_MODE
2 13
1A 4OE_
L24
BEAD(0603)
47u/16v
1 2 3 12
12MHZ 1Y 4A
4 11
2OE_ 4Y
C134
NC 5 10
2A 3OE_
GND
6 9
2Y 3A
7 8
GND 3Y
74LCX125
R80
R81
4.7KRP
5 4
6 3
7 2
8 1
C125 C126 C127
R61
220P NC NC
1K
R72
1M
7
X1
x2
8
X2
9
P4.5
10
P4.4
11
P4.3
U15
12
P4.2
13
P4.1/VSYNC
SM0230
14
P4.0/HSYNC
15
P3.0/Rxd/HSCL
16
P3.1/Txd/HSDA
17
P3.2/INT0
RP39
4.7KRP
3V3
C133
C132
C70
0.1u 0.1u
D6
R77
1N4148
4.7K
0
VCLK00
NC
VCLK01
ViewSonic Corporation
R62
5V_STBY
100
C123
0.1u
R67
1K
Q2
1
MMBT3904L
C124 R120
1K
1u
BL_ON_OFF
3V3
R153 RP34 RP35
4.7KRP 4.7KRP
100K
39
P5.6/DA2
38
P5.5/DA1
37
P5.4/DA0
36
P5.3/AD3
PSC0
35
P5.2/AD2
34
P5.1/AD1
33
P5.0/AD0
32
P1.7
3V3
31
P1.6
30
P1.5
RP36 RP37
29
P1.4 4.7KRP
4.7KRP
LED_GRN
LED_AMBER
DPWBN5419T8----
BOARD ID: QPWB-5419T8---C
33
Confidential – Do Not Copy
R63
100
BL_BRI
3V3
GREEN_LED
GREEN_LED
R69 Q3 R68
2K
LED_AMBER 2N3906 330
1
Q4
AMBER_LED
AMBER_LED
2N3906
R70
2K
LED_GRN
1
R71
330
LVDS_PD
AUDIO_EN
HP_SENSE
PSC1
PSC0
5V_STBY
ADC1
ADC2
R151
4.7K
R152
100
RP38
Q1
4.7KRP
MMBT3904L
1
AUDIO_MUTE
R28
4.7K
MCU_SCL1
MCU_SDA1
PD
PDO
ROM_SDA
ROM_SCL
8 1
ASIC_SCL VDD A0
7 2
ASIC_SDA
WP A1
R78
33
6 3
SCL A2
R79
33
5 4
SDA VSS
U17
24LC16
AUDIO_MUTE
POWER_ON_OFF
ViewSonic VA930
Title
Size Document Number
SMO230
Custom
Date: Thursday, July 04, 2002 Sheet
VA930-1
AUDIO_MU
3V3
C135
0.1u
Rev
C
of