Samsung SyncMaster 700p PLUS CSH7839L, Руководство по обслуживанию

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13 Schematic Diagrams
CSH7839L/CSH9839L 13-4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42 0.239
0.210
1.875
2.111
1.833
0.237
3.73
GND
5.05
3.24 ~ 5.02
0 ~ 5.06
4.51
0.112
Low
4.64
Low
0.604
3.65
GND
3.96
5.05
Low
High
–
–
–
Low
2.258
2.233
High
High
5.05
GND
0.238
0.210
1.871
3.34
1.830
–
0.236
3.72
GND
5.05
3.24 ~ 5.02
0 ~ 5.06
0.02
0.122
Low
4.46
Low
0.376
3.39
GND
0.337
5.05
Low
High
–
–
–
Low
2.258
2.233
High
High
5.05
GND
0.241
0.212
1.876
3.88
1.835
–
0.239
0.238
GND
5.05
3.24 ~ 5.02
0 ~ 5.06
4.5
0.172
Low
4.39
Low
0.378
3.36
GND
4.17
5.05
Low
High
–
–
–
Low
2.258
2.233
High
High
5.05
GND
pin # pin #
MODES MODES
31 kHz 31 kHz 69 kHz 69 kHz 96 kHz 96 kHz
Table 13-1. IC201 (ST72E75_3)
Unit: Vrms
up: 0.535, down: 1.478, left: 2.478, rignt: 3.45
pos: 0.539, pin: 1.476, menu: 2.476
D-Sub : High, BNC : Low
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32 0.610
Low
0 ~ 1.127
3.28
3.121
6.35
3.96
1.515
1.517
3.27
GND
0.073
7.97
8.01
2.81
3.23
GND
11.9
GND
5.42
8.07
3.52
3.38
2.92
Low
5.28
GND
3.18
11.92
4.94
4.94
5.05
0.382
Low
0 ~ 1.127
3.28
2.469
6.35
3.96
3.32
3.32
3.18
GND
0.096
7.97
7.95
2.91
3.21
GND
11.9
GND
5.22
8.07
3.52
3.44
2.86
Low
5.51
GND
1.85
11.92
4.94
4.94
5.05
0.384
Low
0 ~ 1.127
3.28
1.96
6.35
3.96
4.69
4.7
3.27
GND
0.131
7.96
7.91
2.90
3.20
GND
11.9
GND
5.18
8.07
3.51
3.40
2.81
Low
5.43
GND
2.77
11.92
4.94
4.94
5.05
pin # pin #
MODES MODES
31 kHz 31 kHz 69 kHz 69 kHz 96 kHz 96 kHz
Table 13-2. IC251 (TDA9110)
Unit: Vrms
3 3.42 V (IC201, #33)
CH1 P-P = 3.42 V CH1 RMS = 2.500 V
4 3.16 V (IC201, #32)
CH1 P-P = 3.16 V CH1 RMS = 2.560 V
5 12.08 V (Q253, Base)
CH1 P-P = 12.08 V CH1 RMS = 7.396 V
6 2.20 V (IC251, #15)
CH1 P-P = 2.20 V CH1 RMS = 2.776 V