Schematic Diagrams - ViewSonic G90fB-4 Service Manual

10£® Schematic Diagrams
10-1. CPU
H801
G1
1
-24.85V
Bri
2
H-FLY
3
ABL
4
CLBL
5
+12V
6
C913
+5V 1000P
7
GND
8
+6V
9
C914
1000P
Vs
10
+80V
11
CS3
CS4
OFF
CS1
CS2
H802
VE
1
DDC5V
2
V-SYNC-IN
3
ZD103 C125
6.2V
1000P
H-SYNC-IN
4
SELF
5
ZD105
6.2V
DDC-SCL
6
ZD102
6.2V
DDC-SDA
7
ZD101
6.2V
GND
8
SCL
9
SDA
10
R138
2K2
R141
2K2
The test condition of every IC PIN voltage :H-Freq:68KHZ;V-Freq:85HZ;Pattern:white;
ViewSonic Corporation
5V
J015
10K
J071 R139
Jump 100
C100
+
47UF
C101
C107
0.1UF 100
C110
100
R122
100
R118
100
IC102
56C1133-508
R166
M24C08-BN6
1 8 100
A0 VCC
R109 R108
2K2
2K2
2 7
A1 WP
R117 R105
100 100
3 6
A2 ISCL
R143 R103
100 100
4 5
A4 ISDA
R149
4.7K
C129 C128
100P 100P
C103 C104
0.1UF 100UF 16V
+
D107
R110
R123
4.7K
JUMPER
IN5817
R119
47
ZD104 C127
6.2V 39P
R112
47
R106
15K R107
R124
4K7
1K
C145
22UF
R153 C102
R116
2.7K 0.1UF
3.9K
J126
47 1/4W R104
R102
100 100
R129
C406 470 C106
R125 1000
0.1UF
470
C108
1000
Confidential - Do Not Copy G90fB-4
46
R137
2.2K
IC101
56C1125-575-X
SAA4849PS
R115
1 56
SwiChoice SELF
5.015V 0.232V 100
R113
2 55
ISCL DSDA
C122
3.212V 4.980V 10
100P
R111
3 54
ISDA DSCL
10
2.658V 4.984V C121
100P R132
4 53
Mute G1 Vs
0.728V 0.017V
100
R172
5 52
ROTA Hs
2.912V 0.324V 100 R114
R145
NC
6 51
H-LIN EEP W/R
0.673V 4.999V 100
7 50
Unlock Pro
0.130V 0.218V
R159
8 49
CLAMP VsOUT
0.314V 0.140V 100
R140
9 48
CS1 REM
ZD106
4.996V 3.035V 100
TZX5V1B
10 47
CS2 NC
0.010V 0.020V
11 46
CS3 XTAL2
4.996V 1.321V X101
48MHz
12 45
93C22-48-H
CS4 XTAL1
4.996V 1.321V
13 44
OFF MODE
4.963V 0.004V
14 43
VSSE VDDA
0.005V 3.281V R131
C119 C120
+
0.1UF 2.2K
10UF 16V
15 42
VDDD Vssa
3.246V 0.019V
C126
16 41
V5V BOP
5.008V 2.474V C117 C118 Jumper
0.047UF 100V 1UF 50V
17 40
VSSD Bin
0.004V 2.324V
R142
18 39
BDRV Bsens
0.591V 1.286V
220K 1/4W
C116
2N2
19 38
HBGND AGND
0.004V 0.003V
C115
0.47U
20 37
HDRV Vref
0.549V 2.492V
R134
21 36
HFB Iref
0.780V 2.499V 3.9K
22 35
XRAY EWdrv
C114
0.004V 2.089V
NC R135
470
23 34
RST VOUT2
C109
0.004V 0.853V
2200 R154
470
24 33
Vfocus VUOT1
C124
2.077V 0.860V
2200
25 32
Deguss EHT
0.011V 1.031V R157
NC
26 31
ABLadj HCadj
1.726V 4.511V
27 30
KEY2 Uvolt
4.858V 3.362V
28 29 C123 R146
KEY1 Sincolor
R147
4.859V 0.191V 0.01uF 8K2
R164 7.5K
100
C105
1uF
R407
1K
Q412
D401
BF423
MLL4148
Q413
R419
PH2369
22K 1/2W
R150
NC
R130
R126
R144 R148
10K 10K
10K
3.3K
R183
R181
R182 27K
2K4
5K6
R165
R133
1.6K 8.2K R167
ZD107 62
HZ4C2-E
R161
180K 1/4W
H803
12V
5
KEY1
R151 4
680 KEY2
3
LED
2
GND
1
R120.
1K 1/4W
LED2 LED2
R121 TBC337-40
Orange Green
Q902
220 1/4W
R162
R155
PH2369
2K TBC327-16
1K
R163
1K
CSÕæÖµ±í
<33KHz
33KHz~40.5KHz
40.5KHz~45KHz
45KHz~51KHz
51KHz~62KHz
62KHz~71KHz
71KHz~83KHz
<83KHz
HUNLOCK
R408 100K
D402 MLL4148
R411
+12V
3K9
C405
R412 +
100U
27K
16V
R416
-120V
75K 1/4W
G1
P-Sense
5V
KEY2
R128
2K4
KEY1
R127
5K6
+5V
+190V
+12V
KEY1
KEY2
LED
VER-
VER+
+12V
Q414
BDRV
Q415
CS1 CS2 CS3 CS4
0 0 0 0
0 0
1 1
0 0 0
1
1 0 0 1
1 1 0 1
1 0 1 1
0 1 1 1
1 1 1 1