Date:
January 27, 1997
Sheet
18
of
25
Size
Document Number
REV
A3
96149
SC
Title
370P/J (VRAM & VGA BYPASS CAPACITOR)
TAIPEI TAIWAN R.O.C
ACER
VMAD10
VMAD11
VMAD12
VMAD13
VMAD14
VMAD15
VCC
1
DQ0
2
DQ1
3
DQ2
4
DQ3
5
VCC
6
DQ4
7
DQ5
8
DQ6
9
DQ7
10
N.C
11
N.C
12
N.C
13
N.C
14
WE
15
RAS
16
N.C
17
A0
18
A1
19
A2
20
A3
21
VCC
22
VSS
44
DQ15
43
DQ14
42
DQ13
41
DQ12
40
VSS
39
DQ11
38
DQ10
37
DQ9
36
DQ8
35
N.C
34
N.C
33
N.C
32
LCAS
31
UCAS
30
OE
29
A8
28
A7
27
A6
26
A5
25
A4
24
VSS
23
U42
S256K16-60
C80
SCD1U
VMAD[0..15]
VMAD0
VMAD1
VMAD2
VMAD3
VMAD4
VMAD5
VRAMVCC
17
LCD_3/5V#
ENAVDD
LCDPWR
S1
S2
0
0
0
1
1
0
1
1
0
1
0
0
0
0
0
1
Close 105(MGNDC),108(MVCCC) PIN
C226
SC10U16V
C221
SC1U16V5JX
C211
SC1U16V5JX
3.3V
3.3V
C55
SCD1U
C57
SC10U16V
1
2
G2
GAP-CLOSE
C56
SC1000P50V3KX
VGAPWR
VGAPWR
1
2
3
4
8
7
6
5
U3
SI4435DY
1
2
R127
10KR3
C24
SCD1U
1
2
R22
10KR3
1
2
R23
22KR3
3
1
2
Q1
RN1424
+5V
DCBATOUT
Close 66(DVCC)PIN & 63,89(GND)PIN
MOAT
MOAT
C32
SCD1U
C18
SC10U16V
1
2
R147
33R3
C19
SCD1U
C205
SCD1U
1
2
R154
33R3
C193
SC10U16V
C196
SCD1U
C192
SCD1U
C200
SC10U16V
1
2
L6
HF70ACB
VGAPWR
CCFTPWR
C81
SCD1U
C31
SCD01U
C199
SCD01U
C191
SCD01U
VAA[0..8]
VWEA#
VRASA#
VAA0
VAA1
VAA2
VAA3
VMAD6
VMAD7
CVCC1
CVCC0
AVCC
17
17
17
VCASAL#
VCASAH#
VAA4
VAA5
VAA6
VAA7
VAA8
VMAD8
VMAD9
VRAMOE#
VCASAL#
VCASAH#
17
17
VRAMOE#
VCASBL#
VCASBH#
VAA4
VAA5
VAA6
VAA7
VAA8
VMBD8
VMBD9
VMBD10
VMBD11
VMBD12
VMBD13
VMBD14
VMBD15
VRAMOE#
VCASBL#
VCASBH#
17
17
17
VCC
1
DQ0
2
DQ1
3
DQ2
4
DQ3
5
VCC
6
DQ4
7
DQ5
8
DQ6
9
DQ7
10
N.C
11
N.C
12
N.C
13
N.C
14
WE
15
RAS
16
N.C
17
A0
18
A1
19
A2
20
A3
21
VCC
22
VSS
44
DQ15
43
DQ14
42
DQ13
41
DQ12
40
VSS
39
DQ11
38
DQ10
37
DQ9
36
DQ8
35
N.C
34
N.C
33
N.C
32
LCAS
31
UCAS
30
OE
29
A8
28
A7
27
A6
26
A5
25
A4
24
VSS
23
U40
S256K16-60
C222
SCD1U
C96
SCD1U
VAA0
VAA1
VAA2
VAA3
VMBD0
VMBD1
VMBD2
VMBD3
VMBD4
VMBD5
VMBD6
VMBD7
VWEA#
VRASA#
VRAMVCC
LCD+5V
3.3V
3.3V
RGBGND
GND
1
IN
2
IN
3
EN#
4
OUT
8
OUT
7
OUT
6
OUT
5
UX3
TPS2013D
CX24
SCD1U
1
2
RX6
100KR3
## CIRCUIT MODIFY , CHANGE COMPONENT
C82
SCD1U
C97
SC10U16V
4
5
6
1
4
7
U17B
SSHC00
ENAVDD
VRAMVCC
+5V
17
1
2
GZ1
GAP-CLOSE
VMBD[0..15]
17
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 ...