Samsung SyncMaster 700p PLUS CSH7839L, Руководство по обслуживанию

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13 Schematic Diagrams
CSH7839L/CSH9839L 13-6
1
2
3
4
5
6
7
8 3.027
2.493
0.709
1.535
0
2.070
11.73
4.96
2.621
2.494
0.439
1.472
0
3.71
11.74
4.96
2.57
2.495
0.278
1.548
0
5.33
11.74
4.96
pin #
MODES
31 kHz 69 kHz 96 kHz
Table 13-3. IC401 (KA3843B)
Unit: Vrms
1
2
3
4
5 3.05
3.05
–10.79
0.286
11.93
3.88
3.89
–11.97
1.916
11.92
4.25
4.25
–11.93
2.631
11.92
pin #
MODES
31 kHz 69 kHz 96 kHz
Table 13-4. IC402 (TDA2006V)
Unit: Vrms
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
4.96
4.96
1.515
0
0.656
3.63
0
11.88
2.634
2.634
11.89
11.89
0
4.96
11.88
4.96
4.95
4.96
1.325
0
0.601
3.71
0
11.86
4.07
4.07
11.86
11.86
0
4.96
11.86
4.96
4.93
4.96
1.306
0
0.611
3.75
0
11.85
4.46
4.46
11.85
11.85
0
4.96
11.85
4.96
pin #
MODES
31 kHz 69 kHz 96 kHz
Table 13-5. IC501 (TL494CN)
Unit: Vrms
8 230 V (Q405, S
CH1 P-P = 230 V CH1 RMS = 150.1 V
7 10.96 V (IC401, #6)
CH1 P-P = 10.96 V CH1 RMS = 6.180 V
9 29.8 V (T402, #8)
CH1 P-P = 29.8 V CH1 RMS = 7.14 V
10 54 V (Q406, Drain)
CH1 P-P = 54 V CH1 RMS = 22.44 V
11 11.6 V (Q406, Gain)
CH1 P-P = 11.6 V CH1 RMS = 6.944 V
12 18.6 V (Q407, Base)
CH1 P-P = 55.2 V CH1 RMS = 9.52 V
13 1.216 kV (Q407, Collector)
CH1 P-P = 1.216 kV CH1 RMS = 316 V
14 11.36 V (Q501, Gain)
CH1 P-P = 11.36 V CH1 RMS = 6.944 V
15 808 V (T501, #1)
CH1 P-P = 808 V CH1 RMS = 244 V
16 234 V (Q503, Drain)
CH1 P-P = 234 V CH1 RMS = 171.5 V
17 12.40 V (IC501, #9, 10)
CH1 P-P = 12.40 V CH1 RMS = 5.840 V
18 42.8 V (T551, #7)
CH1 P-P = 42.8 V CH1 RMS = 13.78 V
19 580 V (T551, #1)
CH1 P-P = 580 V CH1 RMS = 278.2 V
20 0.8 V (Q554, Emitter)
CH1 P-P = 0.8 V CH1 RMS = 10.216 V