New laptop DDR2 lamp test instructions
Product synopsis:
This product for a generation notebook DDR2 test lamp upgrade the product, product comprehensive support laptop forward and reverse interface, it is to use leds light and destroy data to indicate the signals of opening address lines with short circuit, instead of traditional using a multimeter measurement method for them one by one, to repair it didn't turn on, don't show, don't read the fault of memory and so on the mainboard, maintenance is an essential tool notebook computer motherboard.
Instructions:
1, with the 3.3 V in tester (CR2032) battery, insert the corresponding notebook motherboard respectively the DDR2 memory each slot, mainboard don't have electricity, the bright and brightness lamp test consistent, signal lines that normal, if has the bright lights or very bright, indicating that this signal have open short-circuit fault, using a multimeter to further define the fault point. (note: all kinds of signals, because tester in each of the contractor the mainboard design and the different chipset, a part of the signal may show that the different, please maintenance personnel using the same motherboard control judge fault.)
2, memory pin the corresponding signal in the list below:
Pin
#
Front
Side
Pin
#
Back
Side
Pin
#
Back
Side
Pin
#
Back
Side
Pin
#
Back
Side
Pin
#
Back
Side
Pin
#
Back
Side
Pin
#
Back
Side
1
VREF
2
VSS
51
DQS2
52
DM2
101
A1
102
A0
151
DQ42
152
DQ46
3
VSS
4
DQ4
53
VSS
54
VSS
103
VDD
104
VDD
153
DQ43
154
DQ47
5
DQ0
6
DQ5
55
DQ18
56
DQ22
105
A10/AP
106
BA1
155
VSS
156
VSS
7
DQ1
8
VSS
57
DQ18
58
DQ23
107
BA0
108
/RAS
157
DQ48
158
DQ52
9
VSS
10
DM0
59
VSS
60
VSS
109
/WE
110
/S0
159
DQ49
160
DQ53
11
/DQS0
12
VSS
61
DQ24
62
DQ28
111
VDD
112
VDD
161
VSS
162
VSS
13
DQS0
14
DQ6
63
DQ25
64
DQ29
113
/CAS
114
ODT0
163
NC,TEST
164
CK1
15
VSS
16
DQ7
65
VSS
66
VSS
115
NC/S1
116
NC/A13
165
VSS
166
/CK1
17
DQ2
18
VSS
67
DM3
68
/DQS3
117
VDD
118
VDD
167
/DQS6
168
VSS
19
DQ3
20
DQ12
69
NC
70
DQS3
119
NC/ODT1
120
NC
169
DQS6
170
DM6
21
VSS
22
DQ13
71
VSS
72
VSS
121
VSS
122
VSS
171
VSS
172
VSS
23
DQ8
24
VSS
73
DQ26
74
DQ30
123
DQ32
124
DQ36
172
DQ50
174
DQ54
25
DQ9
26
DM1
75
DQ27
76
DQ31
125
DQ33
126
DQ37
175
DQ51
176
DQ55
27
VSS
28
VSS
77
VSS
78
VSS
127
VSS
128
VSS
177
VSS
178
VSS
29
/DQS1
30
CK0
79
33
CKE0
80
NC/CKE1
129
/DQS4
130
DM4
179
DQ56
180
DQ60
31
DQS1
32
/CK0
81
VDD
82
VDD
131
DQS4
132
VSS
181
DQ57
182
DQ61
33
VSS
34
VSS
83
NC
84
NC/A15
133
VSS
134
DQ38
183
VSS
184
VSS
35
DQ10
36
DQ14
85
NC/BA2
86
NC/14
135
DQ34
136
DQ39
185
DM7
186
/DQS7
37
DQ11
38
DQ15
87
VDD
88
VDD
137
DQ35
138
VSS
187
VSS
188
DQS7
39
ASS
40
VSS
89
A12
90
A11
139
VSS
140
DQ44
189
DQ58
190
VSS
41
VSS
42
VSS
91
A9
92
A7
141
DQ40
142
DQ45
191
DQ59
192
DQ62
43
DQ16
44
DQ20
93
A8
94
A6
143
DQ41
144
VSS
193
VSS
194
DQ63
45
DQ17
46
DQ21
95
VDD
96
VDD
145
VSS
146
/DQS5
195
SDA
196
VSS
47
VSS
48
VSS
97
A5
98
A4
147
DM5
148
DQS5
197
SCL
198
SA0
49
/DQS2
50
NC
99
A3
100
A2
149
VSS
150
VSS
199
VDDSPD
200
SA1
