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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Summary of Contents for PlasmaSync PX-42VM1G
Page 10: ...NEC Technologies PlasmaSync Plasma Monitor User s Manual...
Page 118: ...METHOD OF DISASSEMBLY 7 1 1 Diagonal view of the main unit rear panel...
Page 134: ...MEMO...
Page 137: ...9 1 PACKAGING Packing details A Safety bracket SASSY B 1 Safety bag SASSY...
Page 139: ...D CUSHION CARTON BOX 9 3 PACKAGING...
Page 141: ...9 5 PACKAGING F CARTON BOX OUT...
Page 147: ...CONNECTION DIAGRAMS 11 1...
Page 148: ...BLOCK DIAGRAMS 12 1 MAIN PWB BLOCK...
Page 149: ...BLOCK DIAGRAMS 12 2 VIDEO BLOCK...
Page 150: ...BLOCK DIAGRAMS 12 3 AUDIO BLOCK...
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