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10 Schematic Diagrams
10-1 Main Part Schematic Diagram
9
23
R516
GT501
D516
R531 V_REG_1
12
IC201 C404
3
R532 R507
T501
R526
R527
REG D515 R530
R505
18
S4 R458
4
C410 R239 REG
R410
11
L402
D431
Q423
Q402 C447
C408 C445 C448
14
T502
R212
C406
10
V_REG_1 R455 Q420
R211
C225
8
7
13
C431
C446
L403
S4 R456 R419 C442 R420 D430 C417 C412 C411 D612 HS403 Q608 Q422 BD402 C604 C603 C613 C624 C621 R425 R428 R431 D422 R444 D617 D405 Q403 R427 R432 Q404 C420 BD403 C419 D408 D409 C443 C444 BD401 D407 C421 Q407 L401 C441 R457 Q421 C425 C427 C430
R459 R443 C435
C436
D406
6
1 2
5
10-1
SyncMaster 755DFT
10 Schematic Diagrams
1 100 V (IC601, #1) 2 100V (IC601, #1) 3 2.00 V (IC401, #6) 4 1.00V (IC401, #8) 5 20.0 V (Q403, Collector)
CH1 P-P = 100 V
CH1 RMS = 350.2 V
CH1 P-P = 100V
CH1 RMS = 325.8 V
CH1 P-P = 2.00V
CH1 RMS = 5.868V
CH1 P-P = 1.00V
CH1 RMS = 1.298V
CH1 P-P = 20.0 V
CH1 RMS = 46.80V
6 200 V (Q404, Collector) 8 5 V (IC401, #12) 9 10.0 V (IC301, #6) 10 2.00 V (Q402, Gate)
7 1.00 V (IC401, #11)
CH1 P-P = 200V CH1 P-P = 5 V CH1 P-P = 10.0 V CH1 P-P = 2.00 V CH1 RMS = 7.692V CH1 RMS = 5.06 V CH1 RMS = 1.425 V
CH1 RMS = 387.2V
CH1 P-P = 1.00V
CH1 RMS = 3.008 V
11 50.0 V (Q402, Drain) 12 2.00 V (IC401, #32)
13 50.0 V (T502, #6)
14 100 V (T502, #1)
18 1.00 V (IC201, #13, 14)
CH1 P-P = 50.0 V CH1 P-P = 2.00V CH1 RMS = 6.124V
CH1 RMS = 73.7V
CH1 P-P = 50.0V
CH1 RMS = 75.6V
CH1 P-P = 100V
CH1 RMS = 124.0V
CH1 P-P = 1.00 V
CH1 RMS = 2.108V
23 5.00 V (Q303, Collector)
CH1 P-P = 5.00V
CH1 RMS = 28.33V
SyncMaster 755DFT
10-2
10 Schematic Diagrams
10-2 Video Part Schematic Diagram
24 20.00 V (CRT, G1) 15 1.00 V (IC101,#12,14,16)
20
19
CH1 P-P = 20.0V CH1 RMS = 66.68V CH1 P-P = 1.00V CH1 RMS = 2.452V
16 1.00 V (IC101, #18,21,24)
16 21 22
24
CH1 P-P = 1.00V CH1 RMS = 2.792V
17 20.0 V (IC103, #1, 2, 3)
15
CH1 P-P = 20.0V
CH1 RMS = 40.52V
19 1.00 V (IC101, #32)
17
CH1 P-P = 1.00V CH1 RMS = 4.516V
20 1.00 V (IC101, #1)
CH1 P-P = 1.00V
CH1 RMS = 5.024V
21 1.00 V (IC101, #18,21,24)
CH1 P-P = 1.00V
CH1 RMS = 2.580V
22 10.0 V (R,G,B, Video)
CH1 P-P = 10.0V
CH1 RMS = 17.02V
10-3
SyncMaster 755DFT
10 Schematic Diagrams
Memo
SyncMaster 755DFT
10-4