Date:
February 12, 1997
Sheet
17
of
25
Size
Document Number
REV
A3
96149
SC
Title
370P/J (VGA CT65550)
TAIPEI TAIWAN R.O.C
ACER
1
2
3
4
5
6
7
8
RP11
SRN33
1
2
3
4
5
6
7
8
RP10
SRN33
VRAMOE#
VCASAL#
VCASAH#
VWEA#
VRASA#
18
18
18
18
C228
SCD1U
PRASA#
PCASAH#
PCASAL#
PWEA#
VGAPWR
VRAMVCC
CVCC0
CVCC1
+5V
3.3V
VAA[0..8]
V
M
A
D
3
V
M
A
D
4
V
M
A
D
5
V
M
A
D
6
V
M
A
D
7
V
M
A
D
8
V
M
A
D
9
V
M
A
D
1
0
V
M
A
D
1
1
V
M
A
D
1
2
V
M
A
D
1
3
V
M
A
D
1
4
V
M
A
D
1
5
V
M
B
D
0
V
M
B
D
1
V
M
B
D
2
V
M
B
D
3
V
M
B
D
4
V
M
B
D
5
V
M
B
D
6
V
M
B
D
7
V
M
B
D
8
V
M
B
D
9
V
M
B
D
1
0
V
M
B
D
1
1
V
M
B
D
1
2
V
M
B
D
1
3
V
M
B
D
1
4
V
M
B
D
1
5
V
A
A
0
V
A
A
1
V
A
A
2
V
A
A
3
V
A
A
4
V
A
A
5
V
A
A
6
V
A
A
7
V
A
A
8
+5V
AVCC
18
IDSEL
11
IRDY#
23
STOP#
27
DEVSEL#
25
PAR
31
C/BE3#
10
RESET#
207
C/BE1#
32
TRDY#
24
A
D
1
8
1
8
A
D
1
7
1
9
FRAME#
22
C/BE0#
43
C/BE2#
21
ROMA0
179
ROMA1
180
ROMA2
182
ROMA3
183
ROMA4
185
ROMA10
186
ROMA5
187
ROMA6
189
ROMA9
190
ROMA7
191
ROMA8
192
ROMA12
193
ROMA13
194
ROMA15
195
ROMA14
196
ROMA16
197
ROMA17
198
A
D
0
0
5
1
A
D
0
1
5
0
A
D
0
2
4
9
A
D
0
3
4
8
A
D
0
4
4
7
A
D
0
5
4
6
A
D
0
6
4
5
A
D
0
7
4
4
A
D
0
8
4
1
A
D
0
9
4
0
A
D
1
0
3
8
A
D
1
1
3
7
A
D
1
2
3
6
A
D
1
3
3
5
A
D
1
4
3
4
A
D
1
5
3
3
REFCLK
203
(RESERVED)
204
STNDBY#
178
A
V
C
C
5
9
A
G
N
D
5
6
B
V
C
C
9
B
V
C
C
4
2
D
V
C
C
6
6
I
V
C
C
8
0
M
V
C
C
C
1
0
8
I
G
N
D
7
7
M
G
N
D
C
1
0
5
M
G
N
D
B
1
3
9
I
G
N
D
1
8
4
B
G
N
D
1
2
B
G
N
D
2
6
B
G
N
D
3
9
D
G
N
D
6
3
M
A
D
8
1
7
0
M
A
D
9
1
7
1
M
A
D
1
0
1
7
2
M
A
D
1
1
1
7
3
M
A
D
1
2
1
7
4
M
A
D
1
3
1
7
5
M
A
D
1
4
1
7
6
M
A
D
1
5
1
7
7
A
A
0
1
4
5
A
A
1
1
4
6
A
A
2
1
4
7
A
A
3
1
4
8
A
A
4
1
4
9
A
A
5
1
5
0
A
A
6
1
5
1
A
A
7
1
5
2
A
A
8
1
5
3
RASA#
156
CASAH#
159
M
B
D
1
1
2
8
M
B
D
2
1
2
9
M
B
D
3
1
3
0
M
B
D
4
1
3
1
M
B
D
5
1
3
2
M
B
D
6
1
3
3
M
B
D
7
1
3
4
P0
71
P1
72
P2
73
P3
74
P4
75
P5
76
P6
78
P7
79
LP
68
FLM
67
SHFCLK
70
ENAVDD
62
R
60
G
58
B
57
HSYNC
65
VSYNC
64
ROMA11
188
ENAVEE
61
A
D
1
6
2
0
M
A
D
0
1
6
2
M
A
D
1
1
6
3
M
A
D
2
1
6
4
M
A
D
3
1
6
5
M
A
D
4
1
6
6
M
A
D
5
1
6
7
M
A
D
6
1
6
8
M
A
D
7
1
6
9
32KHZ
154
CASAL#
160
WEA#
157
M
B
D
0
1
2
7
M
B
D
8
1
3
5
M
B
D
9
1
3
6
M
B
D
1
0
1
3
7
M
B
D
1
1
1
3
8
M
B
D
1
2
1
4
0
M
B
D
1
3
1
4
1
M
B
D
1
4
1
4
3
M
B
D
1
5
1
4
4
RASB#
123
CASBH#
125
CASBL#
126
WEB#
124
P8
81
P9
82
P10
83
P11
84
P12
85
P13
86
P14
87
P15
88
ACTI
53
ENABKL
54
M
69
A20
199
ROMOE#
200
CLK
201
A23
28
SERR#
30
M
V
C
C
B
1
4
2
I
V
C
C
1
8
1
C
V
C
C
0
2
0
5
C
V
C
C
1
2
0
6
C
G
N
D
0
2
0
2
C
G
N
D
1
2
0
8
RSET
55
PERR#
29
A
D
1
9
1
7
A
D
2
0
1
6
A
D
2
1
1
5
A
D
2
2
1
4
A
D
2
3
1
3
A
D
2
4
8
A
D
2
5
7
A
D
2
6
6
A
D
2
7
5
A
D
2
8
4
A
D
2
9
3
A
D
3
0
2
A
D
3
1
1
MCD0
106
MCD1
107
MCD2
109
MCD3
110
MCD4
111
MCD5
112
MCD6
113
MCD7
114
MCD8
115
MCD9
116
MCD10
117
MCD11
118
MCD12
119
MCD13
120
MCD14
121
MCD15
122
C
A
0
9
0
C
A
1
9
1
C
A
2
9
2
C
A
3
9
3
C
A
4
9
4
C
A
5
9
5
C
A
6
9
6
C
A
7
9
7
C
A
8
9
8
H
R
E
F
9
9
RASC#
101
CASCH#
103
CASCL#
104
WEC#
102
OEC#
100
B
G
N
D
5
2
D
G
N
D
8
9
M
V
C
C
A
1
5
8
M
G
N
D
A
1
6
1
OEAB#
155
U12
CT65550
1
2
R55
4K7R3
1
2
3
4
5
6
7
8
RP13
SRN4K7
1
2
R41
33R3
VMAD[0..15]
VMBD[0..15]
V
M
A
D
0
V
M
A
D
1
V
M
A
D
2
AD22
VAA0
VAA5
18
18
1
2
R191
10KR3
1
2
G5
GAP-CLOSE
IRDY#
TRDY#
DEVSEL#
STOP#
PAR
FRAME#
PCIRST#
CBE#[0..3]
CBE#0
CBE#1
CBE#2
CBE#3
+5V
3,4,21
3,4,21
3,4,21
3,4,21
3,4,21
3,4,21
3,4,8,21
24
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
U8
QPRN-R27C15
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
U11
QPRN-R27C15
Y0
Y1
PCASBH#
PCASBL#
1
2
3
4
5
6
7
8
RP20
SRN22
1
2
3
4
5
6
7
8
RP25
SRN22
1
2
3
4
5
6
7
8
RP26
SRN22
1
2
3
4
5
6
7
8
RP1
SRN22
UD[0..3]
LD[0..3]
VCASBH#
VCASBL#
UD3
UD2
UD1
UD0
LD3
LD2
LD1
LD0
SUD3
SUD2
SUD1
SUD0
19
19
18
18
18
SUD[0..7]
SUD7
SUD6
SUD4
SUD5
19
20
20
20
20
20
Y[0..7]
UV[0..7]
ZV_PCLK
R
G
B
HSYNC
VSYNC
Y2
Y3
Y4
Y5
Y6
Y7
UV0
UV1
UV2
UV3
UV4
UV5
UV7
UV6
ZV_PCLK
19
19
19
U8,U10,U11: P/N 69.20010.001
SHFCLK
MOD
LP
FLM
PERR#
SERR#
$VGACLK
$G14.318M
32K2
DDC_DATA
DDC_CLK
STANDBY#
RGBGND
4
3,21
7
7
7
8
20
20
20
20
19
AD[0..31]
ENAVEE
ENAVDD
R[0..7]
A
D
0
A
D
1
A
D
2
R0
R1
R2
R3
R4
R5
R6
R7
3,4,8,20,21,24
8,19
18
19
1
2
3
4
5
6
7
8
RP28
SRN22
1
2
3
4
5
6
7
8
RP29
SRN22
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
U10
QPRN-R27C15
A
D
3
A
D
4
A
D
5
A
D
6
A
D
7
A
D
8
A
D
9
A
D
1
0
A
D
1
1
A
D
1
2
A
D
1
3
A
D
1
4
A
D
1
5
A
D
1
6
A
D
1
7
A
D
1
8
A
D
1
9
A
D
2
0
A
D
2
1
A
D
2
2
A
D
2
3
A
D
2
4
A
D
2
5
A
D
2
6
A
D
2
7
A
D
2
8
A
D
2
9
A
D
3
0
A
D
3
1
Z
V
_
H
R
E
F
Z
V
_
V
R
E
F
RGBGND
MOAT
1
2
R37
560R3
ZV_HREF
ZV_VREF
RGBGND
19
19
Summary of Contents for Extensa 61X
Page 6: ...vi ...
Page 26: ...1 8 Service Guide Figure 1 5 Main Board Layout Bottom Side ...
Page 49: ...System Introduction 1 31 1 5 1 3 Power Management Figure 1 14 Power Management Block Diagram ...
Page 55: ...System Introduction 1 37 1 6 System Block Diagram Figure 1 15 System Block Diagram ...
Page 64: ...Major Chips Description 2 7 2 2 5 Pin Diagram Figure 2 4 M1521 Pin Diagram ...
Page 99: ...2 42 Service Guide 2 5 3 Pin Diagram Figure 2 10 C T 65550 Pin Diagram ...
Page 117: ...2 60 Service Guide Figure 2 12 Functional block diagram CardBus Card Interface ...
Page 119: ...2 62 Service Guide Figure 2 14 PCI to CardBus terminal assignments ...
Page 135: ...2 78 Service Guide 2 7 3 Pin Diagram Figure 2 16 NS87336VJG Pin Diagram ...
Page 145: ...2 88 Service Guide 2 8 2 Pin Diagram Figure 2 17 YMF715 Block Diagram ...
Page 185: ...Disassembly and Unit Replacement 4 5 Figure 4 3 Disassembly Sequence Flowchart ...
Page 209: ...B 2 Service Guide ...
Page 210: ...Exploded View Diagram B 3 ...