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JC-1531 VMA-2
NEC JC-1531 VMA-2 Manuals
Manuals and User Guides for NEC JC-1531 VMA-2. We have
1
NEC JC-1531 VMA-2 manual available for free PDF download: Service Manual
NEC JC-1531 VMA-2 Service Manual (192 pages)
COLOR MONITOR
Brand:
NEC
| Category:
Monitor
| Size: 9.44 MB
Table of Contents
Table of Contents
35
1 Power Supply Circuit
36
(L-L) SWITCHING REGULATOR UNIT
37
(A) Rectifying and Filtering Circuit
37
(B) Auxiliary Power Supply Circuit
37
(C) Converter Circuit
38
(D) Output Rectifying Circuit
38
(E) Error Detection Amplifier Circuit
39
Oscillating and Control Circuit
39
(G) Overvoltage Protection
40
(H) Auto and Manual Degaussing Circuit
40
(1-Z) HV Voltage Circuit
41
(L-3) DC/DC Converter for H Deflection Circuit
45
(L-4) Low Voltage Chopper Regulator Circuit
48
2 Interface Circuit
50
(2-L) Sync Interface Circuit
50
Sync Switch and Video Clamp Pulse Circuit
51
Self Test Circuit
52
3 Video System
53
(3-L) Video Signal Amplifier
53
Brightness and Cut-Off Circuit
54
Video Mute and Video Blanking Circuit
55
ABL Circuit
55
4 Digital Control System
56
(4-L) Digital Control Circuit
56
5 Deflection System
60
5-L. Horizontal System
60
(5-1-L) H Synchronization Circuit
60
(5-L -2) H Phase Circuit
61
(5-L -3) H Drive Circuit
62
5-L-4. H OUTPUT Circuit
63
(5-L -5) Parabola Waveform Generating Circuit
65
Vertical System
67
(5-2-L) V Synchronization Circuit
67
Position Circuit
68
Size Circuit
69
Vertical Deflection Circuit
70
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