HJK-120型(z型)主控板CPU集成块电压
|
型号
|
D12 7407
|
|
管脚
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
|
电压
|
4.85
|
11.75
|
0.1
|
0.2
|
4.85
|
11.75
|
0
|
11.7
|
4.3
|
1.3
|
0.6
|
1.0
|
0.45
|
5
|
|
备注
|
P13提机0.2v 挂机0.5v 故障:P3=0.47 P4=1.47 P13=0.7提机0.45
|
|
型号
|
D13 7407
|
|
管脚
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
|
电压
|
2.8
|
6.5
|
4.9
|
11.8
|
4.9
|
11
|
0
|
11
|
4.9
|
11
|
4.9
|
0
|
0
|
5
|
|
备注
|
或P1=3.6 P2=8.1正常
|
|
型号
|
D14 7407
|
|
管脚
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
|
电压
|
4.5
|
11
|
3.7
|
9.1
|
1.45
|
3.3
|
0
|
0.3
|
0.1
|
1.4
|
0.6
|
11
|
4.5
|
5
|
|
备注
|
故障:P10=11.7v (p12=0.27v) 注:P12=5.9V P13=2.5V表明245坏
|
|
型号
|
D15 7407
|
|
管脚
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
14
|
|
电压
|
5
|
5
|
0.1
|
0.1
|
0.1
|
0.1
|
0
|
0
|
0
|
0.1
|
0.1
|
5
|
5
|
5
|
|
备注
|
|
|
型号
|
D16 245
|
|
管脚
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
9
|
10
|
故障:
p2=0.5 p18>3.0同时引起D14P12=5.9V P13=2.5V
|
|
电压
|
5
|
1.5
|
0
|
5
|
2.2
|
2.0
|
2.0
|
2.0
|
2.0
|
0
|
|
管脚
|
11
|
12
|
13
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
|
电压
|
2.0
|
2.5
|
2.5
|
2.5
|
1.3
|
1.3
|
2.9
|
2.4
|
4.8
|
5
|
|
型号
|
D16 138
|
|
7400
|
|
管脚
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
4
|
11
|
|
|
|
|
电压
|
4.7
|
4.7
|
3.6
|
0
|
0
|
0
|
5
|
0
|
0-5
|
0
|
|
|
|
|
管脚
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
备注
|
P4 0-5V变化(静态)
|
|
电压
|
5
|
5
|
5
|
5
|
5
|
5
|
5
|
5
|
P11拨号后0-5V变化
|
|
备注
|
P9-11:3.5V-5v
|
|
|
型号
|
123
|
|
|
管脚
|
1
|
2
|
3
|
4
|
5
|
6
|
7
|
8
|
|
|
|
|
|
|
电压
|
0
|
0-5
|
5
|
0
|
0
|
0
|
5
|
0
|
|
|
|
|
|
|
管脚
|
9
|
10
|
11
|
12
|
13
|
14
|
15
|
16
|
|
|
|
|
|
|
电压
|
5
|
5
|
5
|
5
|
5
|
0
|
1.2
|
5
|
|
|
|
|
|
|
备注
|
|
|
申瓯HJK-120集团电话维修资料 申瓯HJKK-120电话交换机维修资料 申瓯120型程控电话交换机主板维修资料
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