ViewSonic VS11422 Service Manual page 78

DDC_CI_5V
RP1 RP1
U1 U1
3
3 DDC2_SDA 1B
6
3 DDC2_SCL 2B
8
2,5 DDC_CLK 3B
11
2,5 DDC_DAT 4B
DDC_CI_5V
14
VCC
7
GND
C25 C25
GND_POWER
6 PANEL_ON/OFF
6 DCDC_ON/OFF
MCU_VCC
R30 R30
R33 R33
BUS_POWER
GND_POWER
R36 R36
R41 R41
GND_POWER
GND_POWER
ViewSonic Corporation
D12 D12
2 VGA_5V
BUS_POWER
3 BUS_POWER
D13 D13
2
1A
DDC_CLK_OUT V5A
5
2A 6 V5A
9
3A
DDC_DAT_OUT
12
4A
DDC_CI_5V
1
1OE
4
2OE
10
3OE
13
4OE
R19 R19 R20 R20
Q2 Q2
1 DDC_CI_SEL
GND_POWER
R22 R22
Q3 Q3 RP3 RP3
1
RP4 RP4
R23 R23
GND_POWER
Q4 Q4
1
RP5 RP5
5 4
GND_POWER 6 3
7 2
6 INV_ON/OFF
8 1
6 AUDIO_FUNCTION
2 CONNECT
6 MUTE
R27 R27 R29 R29
3 DDC2_SCL
3 DDC2_SDA
R31 R31
DDC_CI_SEL
5 RESET_RTD
6 LED_GRN
6 LED_ORG
R35 R35 DDC_DAT_OUT
2,5 DDC_DAT
DDC_CLK_OUT
2,5 DDC_CLK
R34 R34
R38 R38 R39 R39
MCU_VCC
U3 U3
1 8
A0 VCC
C27 C27
2 7
A1 TEST
IICSCL
3 6
A2 SCL
IICSDA
4 5
GND SDA
Confidential - Do Not Copy
75
DDC_CI_5V
Q1 Q1
1 2 2 3
1 2
D14 D14 D15 D15
1 2 1 2
R21 R21 D16 D16
GND_POWER
MCU_VCC
3.1~3.6V
2 1
RESET_MCU 5
C26 C26
+ +
D17 D17
D18 D18
1 2
R24 R24
GND_POWER
P50 2
DA0/P5.0
P51 3
DA1/P5.1
P52 4
DA2/P5.2
P53 5
DA3/P5.3
P54 6
DA4/P5.4
P55 7
DA5/P5.5
P56 8
P5.6/HSCL2
P57 9
P5.7/HSDA2
VSYNC
P32 14
P3.2/INT0
P33 15
P3.3/INT1 P6.6/CLOK1
P34 16
P3.4/T0
P35 17
P3.5/T1
P76 18
P7.6/CLKO2 P6.3/AD3
P77 19
P7.7 P6.2/AD2
P6.1/AD1
P31 13
HSDA1/P3.1/TXD P6.0/AD0
P30 11
HSCL1/P3.0/RxD
U2 U2
Y1 Y1
2
R40 R40
C28 C28 C29 C29
GND_POWER
VG2230wm-1
RP2 RP2
IICSCL
IICSDA
R25 R25 RTD_SCSB
RTD_SCSB 5
RTD_SCLK
RTD_SCLK 5
R26 R26
D19 D19
1
NC
33
NC
34
NC
35
NC
12
NC
23
NC
32 R32 R32
31 P67 MENU_ISP
P6.7 MENU 6
30 P66
YOUT 5
29 P65
P6.5 KEY_DOWN 6
28 P64
P6.4 KEY_UP 6
27 P63
SOURCE_SELECT 6
26 P62
AUTO_ADJ 6
25 P61
PWR_SW 6
24 P60
R37 R37
GND_POWER
P50
44
DA0/P5.0
P51
45
DA1/P5.1
P52
46
DA2/P5.2
P53
47
DA3/P5.3
P54
48 32
DA4/P5.4 NC
P55
1 31
DA5/P5.5 NC
P56
2 30
P5.6/HSCL2 NC
P57
3 29
P5.7/HSDA2 NC
P30
5 28
HSCL1/RXD/P3.0 VSYNC
P31
8
HSDA1/TXD/P3.1
P67
27
P6.7
P66
26
P6.6/CLKO1
P32 P65
9 25
P3.2/INT0 P6.5
P33 P64
10 24
P3.3/INT1 P6.4
P34 P63
11 23
P3.4/T0 P6.3/AD3
P35 12 22 P62
P3.5/T1 P6.2/AD2
P76 13 21 P61
P7.6/CLKO2 P6.1/AD1
P77 14 20 P60
P7.7 P6.0/AD0
U4 U4
NC/MTV512/RoHS NC/MTV512/RoHS
RTD_SDIO0 5
RTD_SDIO1 5
RTD_SDIO2 5
RTD_SDIO3 5
V5A
ViewSonic Corporation
Model
MCU
Title
Date Rev: