4-4
TROUBLESHOOTING
Troubleshooting for the VIDEO System
1. No presentation of VIDEO signal pictures
YES
YES
The RGB signal is present at
The H/V sync signal is present
Fault in the MAIN PWB
Pins 1, 3, and 5 of the POMN
at Pins 7, 8, 9, and 10 of the
connector.
POMN connector.
NO
NO
YES
The H/V sync signal is present
Fault in IC5803/IC5804
at Pins 2 and 5 of IC5803.
Fault in IC5801/IC5802/
NO
IC5406
YES
The RGB signal is present at
Fault in peripheral circuits of IC5620
TP5610 to 5612.
NO
YES
The RGB signal is present at
Fault in IC5606 to IC5608 or peripheral circuits of IC5618
Pins 41 to 43 of IC5404.
NO
YES
The Y signal is present at Pins
Fault in peripheral circuits of IC5404
15 and 17 of IC5404, and the C
signal is present at Pin 13.
NO
YES
There are inputs of Signal Y at
Fault in peripheral circuits of IC5203 or IC5204
Pin 14 of IC5203 in NTSC mode,
Signal Y at Pin 16 in PAL mode,
Signal VIDEO at Pin 1 in SECAM
mode, and Signal Y at Pin 9 in S
input mode.
NO
Check peripheral circuits of IC5210 in case of NTSC error. (To *A)
Check peripheral circuits of Q5205 to Q5213 in case of PAL error. (To *B)
Check peripheral circuits of IC1001 in case of SECAM/S error.
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Содержание PlasmaSync PX-42VM1G
Страница 10: ...NEC Technologies PlasmaSync Plasma Monitor User s Manual...
Страница 118: ...METHOD OF DISASSEMBLY 7 1 1 Diagonal view of the main unit rear panel...
Страница 123: ...METHOD OF DISASSEMBLY 7 6 A01 C04 4 MAIN PWB ASSY 1 Remove the screw C04 and take out the MAIN PWB ASSY A01...
Страница 124: ...METHOD OF DISASSEMBLY 7 7 5 POWER UNIT 1 Remove the eight screws S02 and take out the POWER UNIT A10 A10 S02...
Страница 128: ...METHOD OF DISASSEMBLY 7 11 9 BRACKET MAIN 1 Remove the six screws S02 and take out the BRACKET MAIN M11 S02 M11...
Страница 134: ...MEMO...
Страница 135: ...DISASSEMBLY 8 1 S01 S01 M05 M06 M07 A06 S01 S01 S01 S01 S01 M01 M04 M06 S01 A04 P01 M03 S10 S03 S01 M02...
Страница 137: ...9 1 PACKAGING Packing details A Safety bracket SASSY B 1 Safety bag SASSY...
Страница 139: ...D CUSHION CARTON BOX 9 3 PACKAGING...
Страница 141: ...9 5 PACKAGING F CARTON BOX OUT...
Страница 147: ...CONNECTION DIAGRAMS 11 1...
Страница 148: ...BLOCK DIAGRAMS 12 1 MAIN PWB BLOCK...
Страница 149: ...BLOCK DIAGRAMS 12 2 VIDEO BLOCK...
Страница 150: ...BLOCK DIAGRAMS 12 3 AUDIO BLOCK...
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