ViewSonic VA2226w-1, Service Manual

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66
ViewSonic Corporation
Confidential - Do Not Copy
Model
Title
Date Rev:
ViewSonic Corporation
SCALER
To
CN901
From
CN802
Mute
VOL
Brightness
ON/OFF
add R123 on
DVT_DET line.
change C110 to
0805 packaging.
走線
.
改為圓弧
1: Down
2: UP
3: ADC (Power)
4: key 2
5: LED_Blue
6: GND
7: LED_Yellow
8: Key 1
HDCP_WP
EEP_WP
VCC5V
AVDD_33
VCC5V
VDDP_33
VCC5V
AVDD_18
VDDP_33
VCC3.3
AVDD_33
VDDC_18
VCC3.3
AVDD_33
VDDC_18
VCC3.3
AVDD_18 VDDP_33
VCC5V
VCC1.8
VCC5V
VCC3.3
VCC3.3
R
149
4K7
R123 1K
+
C102
100u/16V
R107
4K7
C
129
0.1/16V
R
148
10K
R106
4K7
C
159
0.1/16V
C
128
0.1/16V
R170
10K
R
210
10K
C
141
0.1/16V
C
135
0.1/16V
R112
1K
+
C151
10u/25V
R163 390 1%
R104
20K
FB102
60 Ω
R
209
10K
C
131
0.1/16V
C154
0.1/16V
C
161
0.1/16V
R
150
4K7
R155
1K
C103
0.1/16V
CN101
8P 2.0mm
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
R111
10K
R109
390
R101
33K
R166
NC
R
136
10K
1
3
2
Q102
PMBT3906
R154 1K
C
143
0.1/16V
R156
1K
R103
51
R161 100
R160
1K
TSUMU58WHJ-LF
U104
28
25
26
23
27
24
22
32
33
7
31
30
41
43
42
44
51
80
128
127
81
82
83
84
85
86
91
92
93
94
95
96
97
98
99
100
79
78
77
1 11
9
10
12
13
8
15
16
18
19
17 29 52
104 87
37
103 112
34
35
5
6
118
14 107
36
73
119
120
121
123
124
117 116 115
38
39
108
3
4
53 74 40 59
72 88 101 76 75
102
109
126 114
111 110
20
90 89
122
2
113 56 55 57 61 64 70 67
21
106 105
47
46
48
50
49
45
68 69 63 62
60 65 66 71
125
54 58
RIN0P
GIN0P
SOGIN0
BIN0P
RIN0M
GIN0M
BIN0M
HSYNC0
VSYNC0
REXT
REFP
REFM
SDO
SCK
CSZ
SDI
GPIO_P24/PWM2
LVACKM
XIN
XOUT
LVA2P
LVA2M
LVA1P
LVA1M
LVA0P
LVA0M
LVB3P
LVB3M
LVBCKP
LVBCKM
LVB2P
LVB2M
LVB1P
LVB1M
LVB0P
LVB0M
LVACKP
LVA3M
LVA3P
GND GND
RX2P
RX2N
RX1P
RX1N
AVD
D
_33
RX0P
RX0N
RXCKP
RXCKN
GND GND GND
VDDC VDDP
MODE
VCTRL
VDDP
DDCA_SDA/RS232_TX
DDCA_SCL/RS232_RX
DDCD_SDA
DDCD_SCL
NC
AVD
D
_33
VDDP
GPIO_P22/PWM1
GPIO_P04
GPIO_P00/SAR0
GPIO_P01/SAR1
GPIO_P02/SAR2
GPIO_P06
GPIO_P07
NC NC NC
I2C_MDA
I2C_MCL
RST
GPIO_P15
GPIO_P16
VDDC VDDC VDDP VDDP
GND GND GND LVA4M LVA4P
BYPASS
GPIO_P25
VDDC VDDP
NC NC
AVD
D
_33
LVB4M LVB4P
GPIO_P03/SAR3
GPIO_P14/PWM0
GND NC NC NC NC NC NC NC
AVD
D
_18
GND GND
GPIO45
GPIO46
GPIO44
GPIO42
GPIO43
GPIO47
GND GND GND GND
VDDP VDDP VDDP VDDP
GPIO_P13/PWM2
VDDP VDDP
C
133
0.1/16V
Q106
PMBT3904
1
3
2
U202
AT24C04N
1
2
3
4 5
6
7
8
A0
A1
A2
GND SDA
SCL
WP
VCC
R110
4K7
Q101
AP2305GN
1
3 2
+
C
142
22u/25V
R164
NC
R139
10K
CN104
FFC-CON
1
2
3
4
6
8
10
12
14
16
18
20
22
24
26
28
30
7
9
11
13
15
17
19
21
23
25
27
29
5
C110
4.7u/10V
C
145
0.1/16V
R105
390
C
132
0.1/16V
R
138
10K
R165
10K
C150
22p/50V
R
143
10K
1
3
2
Q105
PMBT3906
R153 1K
+
C108
220u/16V
R
146
10K
C111
NC
R
152
10
K
Q104
PMBT3904
1
3
2
U102
LD1117AL-1.8V
3
1
2
VIN
ADJ
VOUT
R
142
NC
C149
0.1/16V
R
141
10K
C109
NC
R168
10K
C153 0.1/16V
R162 100
R
135
10K
R140
10K
U105
SST25VF010A
1
2
3
4 5
6
7
8
CS#
SO
WP#
GND SI
SCK
HOLD#
VCC
X1
14.31818MHz
Q103
2N7002
1
3
2
C
136
0.1/16V
C
157
0.1/16V
C101
0.1/16V
C
144
0.1/16V
C
138
0.1/16V
R158 470
R169 NC/0
R167 NC/0
R157 1K
C
127
0.1/16V
R
147
10K
CN102
2x4P 2.0mm
1
2
3
4
5
6
7
8
R102
4K7
U101
AP1084K33LA
3
1
2
VIN
ADJ
VOUT
R
144
NC
C
158
0.1/16V
C105
0.1/16V
FB103
0 Ω
D101
SKS20-04AT
C107
0.1/16V
C
140
0.1/16V
C104
0.1/16V
C
147
0.1/16V
R
137
10
K
C
134
0.1/16V
R
151
10K
C152
22p/50V
C
130
0.1/16V
C
137
0.1/16V
C
160
0.1/16V
C
146
0.1/16V
C148
1u/16V
+
C
126
22u/25V
U107
AT24C04N
1
2
3
4 5
6
7
8
A0
A1
A2
GND SDA
SCL
WP
VCC
C106
0.1/16V
C
139
0.1/16V
R108
20K
R159 1K
DET_VGA 2
B- 2
CLK+ 2
VSYNC 2
SOG 2
CLK- 2
HSYNC 2
R+ 2
RIN 2
DDCA_SDA 2
DET_DVI 2
G- 2
SDA_DVI 2
DDCA_SCL 2
GIN 2
GNDG 2
GNDR 2
BIN 2
R- 2
SCL_DVI 2
GNDB 2
G+ 2
WP_VGA 2
B+ 2
HP_CTRL 2
VCC5V
2
VCC3.3
2
VA2226w-1