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Acer 390 Series Service Manual Page 183

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+3.3V
C209
IO_VOLTAGE
SCD1U
C214
C213
C204
C205
C207
SC1KP
SC1KP
SCD1U
SCD1U
SCD1U
IO_VOLTAGE
1,2
$CPUA18
1,2
1
$W/R#
1,2
RX13
$CPUA18
1
2
DUMMY-R3
256K L2 PIPELINE BURST CACHE
45
VCC
58
VCC
C208
C210
C211
109
VCC
SC2D2U16V5ZY
SCD1U
SC1KP
122
VCC
13
VCCQ
25
VCCQ
38
VCCQ
64
VCCQ
C206
C215
C212
77
VCCQ
SC2D2U16V5ZY
SCD1U
SC1KP
89
VCCQ
102
VCCQ
R180 10KR3
128
VCCQ
1
2
41
MODE
1
2
42
NC
114
2
$BWE# $BE#0
BWE#
R184
107
BW1#
$BE#1
108
DUMMY-R3
BW2#
$BE#2
111
BW3#
$BE#3
112
BW4#
$BE#4
117
BW5#
$BE#5
118
BW6#
$BE#6
119
BW7#
$BE#7
120
BW8#
$CPUA10
53
$BE#[0..7]
A7
$CPUA9
54
A6
$CPUA8
55
A5
$CPUA7
56
A4
$CPUA6
57
A3
$CPUA5
60
A2
61
$CPUA4
A1
R179
$CPUA3
62
A0
1
2
52
51 NC
$CPUA11
50 A8
DUMMY-R3
$CPUA12
49 A9
$CPUA13
48 A10
$CPUA14
47 A11
$CPUA15
A12
44
$CPUA16
$CPUA[3..17]
A13
$CADV#
2
1
$CPUADS#
2
$CADS#
2
$GWE#
2
$COE#
2
$CCS#
1
IO_VOLTAGE
1
3
$PCIRST#
8
$L2CLK
3
$ZZ
R188
1
2
$MKR#
DUMMY-R3
1
RX12
0R3
2
U45
1
VCC 28
A14
26
D7 19
$TAG7
A13
$CPUA5
10
D6 18
$TAG6
A0
$CPUA6
9
D5 17
$TAG5
A1
$CPUA7
8
D4 16
$TAG4
A2
$CPUA8
7
D3 15
$TAG3
A3
$CPUA9
6
D2 13
$TAG2
A4
$CPUA10
5
D1 12
$TAG1
A5
$CPUA11
4
D0 11
$TAG0
A6
$CPUA12
3
A7
$CPUA17
2
A12
$CPUA13
25
CS1* 20
A8
$CPUA14
24
OE* 22
A9
$CPUA16
23
WE* 27
A11
$TWE#
$CPUA15
21
GND 14
A10
S32K8-15
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
$
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
P
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
U
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
D
0
1
2
3
4
5
6
7
8
9
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6 6
6 7
6 8
6 9
7 0
7 1
7 2
7 3
7 4
7 5
7 6
7 9
8 0
8 1
8 2
8 3
8 4
8 5
8 6
8 7
8 8
9 1
9 2
9 3
9 4
9 5
U44
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
I O
IO27 96
1
2
3
4
5
6
7
8
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
1 7
1 8
1 9
2 0
2 1
2 2
2 3
2 4
2 5
2 6
IO28 97
IO29 98
IO30 99
IO31 100
IO32 101
2
IO33
3
IO34
4
IO35
5
IO36
6
IO37
7
IO38
8
IO39
9
IO40
IO41 10
IO42 11
IO43 12
IO44 15
IO45 16
IO46 17
IO47 18
IO48 19
IO49 20
IO50 21
IO51 22
IO52 23
IO53 24
IO54 27
IO55 28
IO56 29
IO57 30
IO58 31
IO59 32
IO60 33
IO61 34
IO62 35
A D
A D
IO63 36
A D
C E
C E
G N
G N
G N
G N
G N
G N
G N
G N
IO64 37
S P
S C
G W
O E
C E
C E
C E
C L
A 1
G N
G N
G N
G N
V #
2 #
3 #
Z Z
N C
D Q
D Q
D Q
D Q
D Q
D Q
D Q
D Q
#
#
#
#
#
2
3
K
4
D
D
D
D
S32K64-7
1 0
1 0
1 0
1 1
1 1
1 2
1 2
1 2
1 2
1 2
1 1
6 3
4 3
4 0
1 2
1 1
5 9
4 6
1 0
9 0
7 8
6 5
3 9
2 6
1 4
1
4
5
6
3
6
1
4
5
6
7
5
3
0
3
$
C
P
U
A
1
7
R182
2
10R3
R183
2
0R3
2
+3.3V
C364
C368
SC1KP
SCD1U
$TAG[0..7]
2
2
+5V
$CPUD[0..63]
1,2
$CPUD26
$CPUD27
$CPUD28
$CPUD29
$CPUD30
C378
$CPUD31
SCD1U
$CPUD32
$CPUD33
$CPUD34
$CPUD35
$CPUD36
$CPUD37
$CPUD38
$CPUD39
$CPUD40
$CPUD41
$CPUD42
$CPUD43
$CPUD44
$CPUD45
$CPUD46
$CPUD47
$CPUD48
$CPUD49
$CPUD50
$CPUD51
$CPUD52
$CPUD53
$CPUD54
$CPUD55
$CPUD56
$CPUD57
$CPUD58
$CPUD59
$CPUD60
$CPUD61
$CPUD62
$CPUD63
Title
Size Document Number
A3
Date:
+5V
U43A
4
14
Q 5
CY2
U47A
1 4
VCC
P R
2
SCD1U
D
1
3
3
CLK
Q 6
2
C L
7
GND
7
TSHCT08
SOAC74
1
+5V
U47B
1 4
1 0
U43B
4
14
Q 9
6
VCC
P R
12
5
D
11
7
TSHCT08
CLK
Q 8
C L
7
GND
SOAC74
1 3
+5V
U46
1
HP-IN 16
SH_DOWN
2
GND 15
GND
3
+OUTB 14
+OUTA
4
VDD 13
C377
VDD
5
-OUTB 12
SCD1U
-OUTA
6
-INB 11
-INA
7
BYPASS 10
GND
8
+INB 9
+INA
LM4863
+5V
U42
1
HP-IN 16
SH_DOWN
2
GND 15
GND
3
+OUTB 14
+OUTA
4
VDD 13
C367
VDD
5
-OUTB 12
SCD1U
-OUTA
6
-INB 11
-INA
7
BYPASS 10
GND
8
+INB 9
+INA
LM4863
+5V
1 0
U37B
14
Q 9
VCC
P R
12
D
11
CLK
Q 8
C L
7
GND
SSHCT74
1 3
+3.3V
U11B
1 4 4
5
6
7
SSLVT125
AVAILABLE TTL GATE
ACER TAIPEI TAIWAN R.O.C
CACHE RAM & TAG RAM
390 ACERNOTE LIGHT
REV
96183
SD
August 21, 1997
Sheet
5
of
23

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