ViewSonic VE710b-4 Service Manual page 80

10.5. MCU (Realtek Scaler CPT Panel)
VCPU
R124
D113
1K
IN4148 Q101
2
MMBT3906
1
3
C117
10uF/16V
VCPU
C122
100nF
R128 R129
4K7 4K7
I105
1 8
A0 VCC
2 7
A1 WP
3 6
A2 SCL
4 5
GND SDA
24C16
MUTE
ST_DET1
VCC3V3
R146
10K
P104
1
2
3
4
5
6
7
8
CON8
C131 C130 C129 C128
NC/100p NC/100p NC/100p NC/100p
ViewSonic Corporation
3DVCC
3DVCC
R199
10K
R132 100
RTD_RESET
C118
NC/10uF/16V
X101
12MHz R127 C119 I104
1M 22pF
D114
12
IN4148
C121
22pF
11
7
19
R134 100
14
R135 100
13
27
26
16
9
30
31
LED_G
32
12V LED_O
33
R142 MTV312M64
9.09K
R148
3.32K
R156 100 2
R155 100 down
R154 100 up
1
R153 100
R152 100 green
R151 100 orange
R150 100 power
C126 C125 C127
NC/100p NC/100p NC/100p
77
VE710s-4_VE710b-4
Confidential - Do Not Copy
VCPU
VCC3V3
R125
C116
0R 0603
RN1
100nF
10K X4
1
3
P5.0
UP
2
P5.1
DOWN
1
X1 P5.2
2
42
P5.3
power
41
P5.4
40
X2 P5.5
34
P5.6
39
RESET DA8/HLFHO
38
DA9/HALFV
17
P1.0
18
P1.1
20
INT0/P3.2 P1.2
21
P1.3
22
P1.4
23
ISCL/P3.5/T1 P1.5
24
ISDA/P3.4/T0 P1.6
R136 NC
25
P6.0/AD0 P1.7
35
P6.1/AD1 DA7
36
P6.2 P4.0
37 VCC3V3
P6.3 P4.1
15
P6.4 P4.2
WP R138 NC
P6.5
28
P6.6 P3.1/TXD
29
P6.7 P3.0/RXD
R143
NC
VCC3V3
Q102
R149
MMBT3906
2
4K7 LED_O
1
3
C123
orange
NC
VCC3V3
Q103
MMBT3906
R157
2
4K7 LED_G
1
3
GREEN C124
NC 3 (C)
1 (B) 2 (E)
VCPU
RN2
10K X4
RN4
RN3
10K X4
10K X4
R130 1K
onPanel_12V
VCPU R137
NC
R140 R139
2K2 2K2
R144
R145
P701
Contral_key_pad
8 HEADER 2mm
PWR/LED
GREEN
S705 S704 S703 S702
onPanel_3V3
R133 1K
onBacklight
RTD_SCSB
RTD_SCLK
RTD_SDO_OR_SDI
100
DDC_CLK
100
DDC_DAT
PWR/SW
PSM/LED
ORANGE
S701
D701