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4-10
TROUBLESHOOTING
Troubleshooting for the AUDIO System
No sound generation from the speaker
Is the mute function canceled?
NO
YES
Is the audio input correctly selected?
Check various settings.
NO
YES
Is the signal present at M2801 of the SP PWB?
Check the speaker and speaker cable.
NO
YES
Are signals present at the LM and RM
connectors of the AUDIO PWB?
NO
YES
Disconnection, etc. in the LM and RM connector
cables
5
Is the signal present at the AB connector of the
AUDIO PWB?
NO
YES
Fault around the POWER circuit
Are there various power voltages available at
NO
the PA connector?
YES
Fault around the MAIN PWB and IC9501
Is the rectangular wave signal of 5Vp-p available at
NO
Pins 1 and 2 of the AE connector when the sound
volume and others are changed?
YES
Fault in the AUDIO PWB
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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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