Service manual
8 7 6 5 4
3
2 1
A
B
C
D
12345678
D
C
B
A
VGA CONTROLLER
-WEV
-LCASV
-RASV
-UCASV
MD[0..15]
VCC
VCC
MA8A
MA7A
MA6A
MA5A
MA4A
MA3A
MA2A
MA1A
MA0A
MD15A
MD14A
MD13A
MD12A
MD11A
MD10A
MD9A
MD8A
MD7A
MD6A
MD5A
MD4A
MD3A
MD2A
MD1A
MD0A
IC37,IC32
VCC --- GND
1
2
3
45
6
7
8
BR1
33X4
1
2
3
45
6
7
8
BR2
33X4
R185
33
C211
C210
C205
C204
C197
C199
C198
C206
C212
C247
0.1uF
C33
10uF/10V
D0
2
D1
3
D2
4
D3
5
D4
7
D5
8
D6
9
D7
10
D8
31
D9
32
D10
33
D11
34
D12
36
D13
37
D14
38
D15
39
A0
16
A1
17
A2
18
A3
19
A4
22
A5
23
A6
24
A7
25
A8
26
VCC
1
VCC
6
VCC
20
NC
11
NC
12
NC
15
NC
30
GND
21
GND
35
GND
40
UCAS#
28
LCAS#
29
RAS#
14
WE#
13
OE#
27
IC37
HY514264B(SOJ)
1
2
3
45
6
7
8
BR4
33X4
1
2
3
45
6
7
8
BR5 33X4
1
2
3
45
6
7
8
BR6 33X4
1
2
3
45
6
7
8
BR7 33X4
C261
C260
C254
C253
C244
C243
C235
C234
C228
C236
C237
C245
C246
C255
C256
C262
IC28 VCC --- GND
/VIO2
/SBHE
/IOWR
/IORD
/SMEMW
/RFSH
/SMEMR
/RD
/AS
/RASPN12
RASPN2
RASPN2E
/M3SWP
/OWR
/PSRFO
/IPLON0
RES
VCC
VCC
= IC29 IC37
100pF
NOT USED
C167
0.1uF
C23
OS 33uF/10V
C186
100pF
C153
1000pF
C150
0.1uF
194
OS 10uF/10V
/VMEM
/VMEM2
/HWR
/LWR
#
/RES
A0
PCE21E
A20
/VWAITI
/VWAIT
/DWRI
/DRDI
VCC
VCC
C158
47pF
R121 0
R135
33
R129
33
C162
C157
330pF X2
R128 0
/VHEM
1
/VHEM2
2
/HWR
3
/LWR
4
DHAI
5
VCC
6
/ISPEN
7
/VWAITI
8
/VWAIT
9
/DWRI
10
/DWRO
11
/DRDI
12
/DRDO
13
RES
14
/RES
15
A0
16
GND
17
A20
18
PCE21E
19
PCE21O
20
PCE22O
21
PCE22E
22
/IPLON0
23
/PSRFO
24
/OWR
25
/M3SWP
26
Y2/SCLK
27
VCC
28
Y1/RESET
29
MODE
30
RASPN2E
31
RASPN2
32
/RASPN12
33
/AS
34
/RD
35
/RFSH
36
/SMEMR
37
/SMEMW
38
GND
39
/COE0
40
/IORD
41
/IORW
42
/SBHE
43
/VIO2
44
IC28
ISPLSI2032
C190
100pF
IC48 16PIN - - - VCC
8PIN - - - GND
A[0..23]
/RFSH
PCE21O
PCE22O
PCE22E
/SBHE
/IORD
/IOWR
/SMEMW
/SMEMR
A19
A18
A17
A23
A22
A21
A20
/VMEM2
/VIO2
VCC
VCC
1
2
3
4
VCC
VCC
C161
0.01uF
X5
15MHz
A
1
B
2
C
3
G1
6
G2A
4
G2B
5
Y0
15
Y1
14
Y2
13
Y3
12
Y4
11
Y5
10
Y6
9
Y7
7
IC48
74LV138
1
2
3
IC6A
74LV08
C55
0.1uF
C267
51pF
IC29 VCC --- GND
MD0
MD1
MD2
MD3
MD4
MD5
MD6
MD7
MD8
MD9
MD10
MD11
MD12
MD13
MD14
MD15
MA0
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
VCC
VCC
XIN
1
GND
2
AEN
3
-SBEH
4
-IOWR
5
-IORD
6
-SMEMW
7
-SMEMR
8
A21
9
A20
10
SA19
11
SA18
12
SA17
13
SA16
14
SA15
15
SA14
16
SA13
17
SA12
18
SA11
19
SA10
20
SA9
21
SA8
22
SA7
23
SA6
24
SA5
25
SA4
26
SA3
27
SA2
28
SA1
29
SA0
30
-BIOSEN
31
-REFRESH
32
GND
33
VDD
34
SD15
35
SD14
36
SD13
37
SD12
38
GND
39
SD11
40
SD10
41
SD9
42
VDD
43
SD8
44
SD7
45
SD6
46
GND
47
SD5
48
SD4
49
SD3
50
SD2
51
SD1
52
SD0
53
GND
54
VDD
55
IOCHRDY
56
-MEMCS16
57
-IOCS16
58
GND
59
VDD
60
DCLK
61
DISP
62
LP
63
FP
64
UD7
65
UD6
66
UD5
67
UD4
68
UD3
69
UD2
70
UD1
71
UD0
72
GND
73
VDD
74
LD7
75
LD6
76
LD5
77
LD4
78
LD3
79
LD2
80
LD1
81
LD0
82
BACKON
83
LCDON
84
LOGICON
85
GND
86
VDD
87
MA9
88
MA8
89
MA7
90
MA6
91
MA5
92
MA4
93
MA3
94
MA2
95
MA1
96
MA0
97
GND
98
VDD
99
-RAS
100
-UCAS
101
-LCAS
102
-WE
103
MD15
104
MD14
105
MD13
106
MD12
107
MD11
108
MD10
109
GND
110
VDD
111
MD9
112
MD8
113
MD7
114
MD6
115
MD5
116
MD4
117
MD3
118
MD2
119
MD1
120
MD0
121
GND
122
VDD
123
RESET
124
MINTEST
125
TEST
126
GND
127
XO
128
IC29
MN89303A
100pF x 2
-WEV
-LCASV
-UCASV
-RASV
-WEV
-LCASV
-RASV
-UCASV
VCC
MA8A
MA7A
MA6A
MA5A
MA4A
MA3A
MA2A
MA1A
MA0A
MD15A
MD14A
MD13A
MD12A
MD11A
MD10A
MD9A
MD8A
MD7A
MD6A
MD5A
MD4A
MD3A
MD2A
MD1A
MD0A
VCC
VEE
D0
2
D1
3
D2
4
D3
5
D4
7
D5
8
D6
9
D7
10
D8
35
D9
36
D10
37
D11
38
D12
40
D13
41
D14
42
D15
43
A0
18
A1
19
A2
20
A3
21
A4
24
A5
25
A6
26
A7
27
A8
28
VCC
1
VCC
6
VCC
22
NC
13
NC
14
NC
17
NC
32
GND
23
GND
39
GND
44
UCAS#
30
LCAS#
31
RAS#
16
WE#
15
OE#
29
IC32
M5M4V4265T-6
R191
10K X5
R193
R192
R202
R208
C220
100pF
C219
C218
C221
100pF
1
2
3
45
6
7
8
BR3
BR33x4
23
1
Q3
DTA144EK
for LCD CN
-24V
33 x 4
330pF x 4
DL0
DL1
DL2
DL3
DL4
DL5
DL6
DL7
VCC
NOT USED
NOT USED
DL4
DL5
DL6
DL7
DL0..DL3
12
3
1
2
3
LCDENB
+12V
C160
C164
C166
C169
C171
C173
C175
C178
23
1
Q2
DTC114YK
R161
1/2W 1.2K
R181
47K
Q4
KTA1273Y
Q5
KTC3199GR
R183
47K
R182
15K
1
2
3
4
CN12
R170 33
X1
1
X2
2
GND
3
FS0
4
OE#
8
FS1
7
VDD
6
CLK
5
IC31
W42C31-03
C29
OS 10uF/10V
C181
0.1uF
R171 0
R163
X6
25.175MHz
C176
8pF X2
33 x 4
BKLT
MA1
MA2
MA3
MA4
MA5
MA6
MA7
MA8
IC29 #1
VCC
NOT USED
LCDENB
R124
R134
R126
R127
R184
R177
R169
R162
R155
R149
R145
R142
FB16
BFW7550R2
7PIN - - - GND
IC48 VCC --- GND
IC41 14PIN - - - VCC
IC41 VCC --- GND
DISP
LP
FP
D[0..15]
/VWAITI
D8
D9
D10
D11
D12
D13
D14
D15
D0
D1
D2
D3
D4
D5
D6
D7
VCC
VCC
DCLK
for LCD CN
IC6 VCC --- GND
C182
0.1uF
12
13
11
IC41D
74HC00
1
2
3
IC41A
74HC00
C79
0.1uF
R125
1K
C156
330pF
C148
100pF
C149
330pF
C152
330pF
C179
2/14
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