ViewSonic VG700b-2, Service Manual

Page: 33 / 39

2.5V_AVDD_LV
+2.5V
3.3V_AVDD
GND
3.3V_AVDD
3.3V_AVDD
+3.3V
3.3V_AVDD
2.5V_VDD
GND
GND
GND
3.3V_DVDD
3.3V_DVDD +3.3V
GND
3.3V_DVDD
+5V
+5V
2.5V_VDD
GND
+2.5V
2.5V_AVDD
2.5V_AVDD_LV
GND
GND
+5V
GND
GND
GND
GND
+5V
GND
+5V
GND GND
GND
2.5V_AVDD
+2.5V
3.3V_DVDD
GND
GND
GND
3.3V_DVDD
3.3V_DVDD
LCDVCC
GND
3.3V_DVDD
GND
A16
/WR
TXODD2-
TXEVEN3-
TXODDC-
TXODD0-
TXEVENC-
TXEVEN0-
TXODD1-
TXEVEN2-
TXEVEN1-
TXODD3-
TXODD2-
RMADDR10
GPIO4/UART_DI
HFSn
GPIO12/NVRAM_SDA
TXEVENC-
GPIO9
GPIO3/TIMER1
RMADDR9
GPIO5/UART_DO
GPIO7
TCLK
TXEVEN2-
GPIO6
TXODDC-
XTAL
TXODD1-
TXODD0-
TXEVEN3-
TXEVEN1-
TXODD3-
GPIO10
GPIO2/PWM2
GPIO0/PWM0
GPIO5/UART_DO
TXEVEN0-
GPIO1/PWM1
HCLK
GPIO13/NVRAM_SCL
RMADDR8
/WR
RMADDR12 RMADDR14
RMADDR14
RMADDR7
RMADDR13
RMADDR3
RMDATA5
RMADDR15
RMDATA1
RMADDR[0..15]
RMADDR0
RMADDR5
RMADDR6
RMADDR8
RMADDR1
RMADDR6
RMADDR8
RMADDR11
RMADDR4
RMADDR9
RMADDR7
RMDATA6
RMADDR3
RMADDR14 RMDATA7
RMADDR13
RMADDR12
RMADDR2
RMADDR10
RMDATA2
RMADDR15
RMADDR15
RMDATA0
RMADDR4
RMADDR5
RMADDR9
RMADDR11 RMDATA4
RMADDR1
RMDATA3
ROM_OEn
RMADDR2
RMADDR0
RMDATA0
RMDATA7
RMDATA6
RMDATA2
RMDATA1
RMDATA5
RMDATA3
RMDATA4
R
M
D
A
T
A
[0
..7
]
LCDVCC
GPIO12/NVRAM_SDA
GPIO13/NVRAM_SCL
GPIO4/UART_DI HCLK
HFSn
/RESET
PBIAS_POL
/RESET
Mute_F
VGA-EN
A16
LVDS_SE
LVDS_SE
R46 10K/6
R54 10K/6
C83 33p/
6/
NS
C49
0.
1u/
6
C65
0.
1u/
6
R62 10K/6
C78
22u/25V
C55
22u/25V
C50
0.
1u/
6
CN5
1841 30P
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
C53
0.
1u/
6
C79
0.
1u/
6
C60
0.
1u/
6
C62
0.
1u/
6
R55 10K/6
C76
0.
1u/
6
R53 10K/6/NS
C51
0.
1u/
6
3.3V_A
AGND
U2
gm2121
135
134
131
130
127
126
103
102
23
24
25
26
27
28
29
32
34
62
36
37
61
10
11
12
13
9
8
17
16
18
19
33
22
38
156
155
154
153
152
151
150
149
148
139
6
5
4
3
2
1
160
159
140
141
147
145
146
142
7
119
117
129
133
125
122
121
14 30 143
113
20 43 79 98
40
41
106
104
105
115 110
101
100
15 21 31 44 107 91 99 137
120
118
114
116 111
35
123
59
60
63
58
57
56
55
54
53
50
49
48
47
46
45
51
52
78
39
112
128
132
136
124
90 157
158
138
64
65
66
67
68
69
70
71
72
73
74
75
76
77
108
109
80
81
82
83
84
85
86
87
88
89
92
93
94
95
96
97
144 42
RED+
RED-
GREEN+
GREEN-
BLUE+
BLUE-
XTAL
TCLK
GPIO0/PWM0
GPIO1/PWM1
GPIO2/PWM2
GPIO3/TIMER1
GPIO4/UART_DI
GPIO5/UART_DO
GPIO6
GPIO7
GPIO10
AVSS_OUT_LV_O
GPIO12/NVRAM_SDA
GPIO13/NVRAM_SCL
AVDD_LV_E_2.5
GPIO20/HDATA3
GPIO19/HDATA2
GPIO18/HDATA1
GPIO17/HDATA0
GPIO16/HFS
GPIO22/HCLK
RESETn
GPIO21/IRQn
GPIO15/DDC_SCL
GPIO14/DDC_SDA
GPIO9
GPIO8/IRQINn
RESERVED
ROM_ADDR0
ROM_ADDR1
ROM_ADDR2
ROM_ADDR3
ROM_ADDR4
ROM_ADDR5
ROM_ADDR6
ROM_ADDR7
ROM_ADDR8
ROM_ADDR15
ROM_DATA0
ROM_DATA1
ROM_DATA2
ROM_DATA3
ROM_DATA4
ROM_DATA5
ROM_DATA6
ROM_DATA7
ROM_ADDR14
ROM_ADDR13
ROM_ADDR9
ROM_ADDR11
ROM_ADDR10
ROM_ADDR12
ROM_OEn
VDD1_ADC_2.5
VDD2_ADC_2.5
AGND_GREEN
AGND_RED
AGND_BLUE
AGND_ADC
SGND_ADC
RVDD_3.
3
RVDD_3.
3
RVDD_3.
3
AVDD_SDDS_3.3
CVDD_2.
5
CVDD_2.
5
CVDD_2.
5
CVDD_2.
5
PPWR
PBIAS
VDD_DPLL_3.
3
AVDD_RPLL_3.3
AVSS_RPLL
VDD_SDDS_3.
3
VDD_DDDS_3.
3
HSYNC
VSYNC
CRVSS CRVSS CRVSS CRVSS VSS_DPLL CRVSS CRVSS CRVSS
GND1_ADC
GND2_ADC
AVSS_SDDS
VSS_SDDS VSS_DDDS
GPIO11/ROM_WEn
ADC_TEST
AVDD_OUT_LV_E_2.5
AVSS_LV_E
AVDD_OUT_LV_O_2.5
AVSS_OUT_LV_E
CH0N_LV_E
CH0P_LV_E
CH1N_LV_E
CH1P_LV_E
CH2N_LV_E
CLKP_LV_E
CH3N_LV_E
CH3P_LV_E
AVSS_OUT_LV_E
AVDD_OUT_LV_E_2.5
VCO_LV
CLKN_LV_E
CH2P_LV_E
CRVSS
RESERVED
VBUFC
AVDD_BLUE_3.3
AVDD_GREEN_3.3
AVDD_RED_3.3
AVDD_ADC_3.3
RVDD_3.
3
RVDD_3.
3
CRVSS
CVDD_2.
5
CH3P_LV_O
CH3N_LV_O
CLKP_LV_O
CLKN_LV_O
CH2P_LV_O
CH2N_LV_O
CH1P_LV_O
CH1N_LV_O
CH0P_LV_O
CH0N_LV_O
AVDD_OUT_LV_O_2.5
AVSS_OUT_LV_O
AVSS_LV_O
AVDD_LV_O_2.5
AVDD_DDDS_3.3
AVSS_DDDS
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
RESERVED
GPO 0
GPO 1
GPO 2
GPO 3
GPO 4
GPO 5
GPO 6
GPO 7
CRVSS CRVSS
R48 47K/6/NS
C71
5p/6
C84 33p/
6/
NS
C47
0.
1u/
6
R47 47K/6/NS
C57
0.
1u/
6
R56 10K/6
R58 10K/6
C52
0.
1u/
6
C82 0.
1u/
6/
NS
U4 W39F010P-70B
3
29
28
4
25
23
26
27
5
6
7
8
9
10
11
12
21
20
19
18
17
15
14
13
24
31
32
1
16
2
30
22
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
OE
WE
VCC
NC
GND
A16
NC/A17
CE
C69
0.
1u/
6
C80
0.
1u/
6
C63
22u/25V
C77
0.
1u/
6
R61
10K/
6
C45
22u/25V
R57 10K/6
C86 0.1u/6
C54
220P/
6
C48
0.
1u/
6
C66
0.
1u/
6
C75
0.
1u/
6
C72
22u/25V
C73
0.
1u/
6
C61
0.
1u/
6
C59
0.
1u/
6
C64
0.
1u/
6
C56
0.
1u/
6
X1
14.318MHz
L14
CX000800000/1206
JP1
4-P/NS
1 2
3 4
1 2
3 4
L15
CX000800000/1206
L13
CX000800000/1206
R60 10K/
6
C81
220P/
6
L12
CX000800000/1206
U3
MAX6326UR29
1
2
3
OUT
GND
V
CC
R59 10K/6
L11
CX000800000/1206
U5
AT24C16-10SC-1.8
4
8 1
2
3
7
6
5
GND
VCC A0
A1
A2
WP
SCL
SDA
C46
0.
1u/
6
C85
0.
1u/
6
C68
0.
1u/
6
C67
0.
1u/
6
R49 22/6
C74
0.
1u/
6
R50 22/6
C70
5p/6
C58
0.
1u/
6
R51 10
K
/6
/N
S
R52 0/
6/
NS
PPWR 6
PBIAS 5
LCD_ON/OFF 5
MUTE 5,8
GREEN- 3
RED+ 3
BLUE- 3
GREEN+ 3
HS 3
VS 3
BLUE+ 3
HCLK 3
HFSn 3
GPIO6 5
GPIO10 5
RED- 3
GPIO0/PWM0 5
GPIO3/TIMER1 5
GPIO2/PWM2 5
GPIO7 5
GPIO1/PWM1 5
GPIO9 5
Mute_F 5
VGA-EN 3
GPO2 5
GPO1 5
32-Pin PLCC Socket
RM-14
OCM-START
H-PORT-EN
100mA
200mA
100mA
500mA
Close to respective power pins
Close to respective power pins
Close to respective power pins
Close to respective power pins
100mA
100mA
Close to respective power pins
Reset
Circuit
MAIN BOARD
ViewSonic Corporation
29
Confidential – Do Not Copy VG700b-2