Acer Extensa 900 Series Maintenance Manual page 144

2 $MA[0..11]
2,6 $MD[0..63]
2 $MWE#
2 $RAS#2
$RAS#3
2
R81
1 2
19 DIMM_DATA
2KR3
2 $CAS#[0..7]
C171
SC10U16V
Figure A-1 Notebook Main Board Logic Diagrams (Sheet 7 of 30)
A-8 Notebook Schematic Diagrams
DIMM SOCKET
DRAM_VCC
$MD[0..63]
$MD0
$MD1
$MD2
$MD3
$MD4
$MD5
$MD6
$MD7
$CAS#0
$CAS#1
$MA0
$MA1
$MA2
$MD8
$MD9
$MD10
$MD11
$MD12
$MD13
$MD14
$MD15
$MD16
$MD17
$MD18
$MD19
$MD20
$MD21
$MD22
$MD23
$MA6
$MA8
$MA9
$MA10
$CAS#2
$CAS#3
$MD24
$MD25
$MD26
$MD27
$MD28
$MD29
$MD30
$MD31
1
R82
3K3R3
2
$CAS#[0..7]
DRAM_VCC
C166 C167 C168 C169 C172
SCD1U SCD1U SCD1U SCD1U SCD1U
CN12
145
1 2
3 4 $MD32
5 6 $MD33
7 8 $MD34
9 10 $MD35
11 12
13 14 $MD36
15 16 $MD37
17 18 $MD38
19 20 $MD39
22
21
23 24 $CAS#4
25 26 $CAS#5
27 28
29 30 $MA3
31 32 $MA4
33 34 $MA5
35 36
37 38 $MD40
39 40 $MD41
41 42 $MD42
43 44 $MD43
45 46
47 48 $MD44
49 50 $MD45
51 52 $MD46
53 54 $MD47
55 56
57 58
59 60
61 62
63 64
65 66
67 68
69 70
71 72
73 74
75 76
77 78
79 80
81 82
83 84 $MD48
85 86 $MD49
87 88 $MD50
89 90 $MD51
91 92
93 94 $MD52
95 96 $MD53
97 98 $MD54
99 100 $MD55
101 102
103 104 $MA7
105 106 $MA11
107 108
109 110
111 112
113 114
115 116 $CAS#6
117 118 $CAS#7
119 120
121 122 $MD56
123 124 $MD57
125 126 $MD58
127 128 $MD59
129 130
131 132 $MD60
133 134 $MD61
135 136 $MD62
137 138 $MD63
139 140
141 142
143 144
146
SDIMM144
DRAM_VCC
C179 C180 C176 C177 C178
SCD1U SCD1U SCD1U SCD1U SCD1U
M+5V
1
R202
100KR3
2
DIMM_IN# 9
MOS_ON#
M+3.3V
1
R154 M+3.3V
100KR3 U51C
1 1
0 4
2
8 9
ID_CLK
7 SOLCX125M
23
19