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Troubleshooting – No AV Video
Troubleshooting – No AV Video
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CN403
L101
Check the cable between the main board and panel and
replace the LCD panel.
Does the LED light up when turn on the power?
Check the power port.
NO
YES
Does the waveform at L101 ?
Does the TX** signal appear at Pin 14 and 15
of CN403?
The scaler (IC408) is abnormal.
Replace the main board.
NO
YES
Reconnect the cable.
NO
YES
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Summary of Contents for 460DX - SyncMaster - 46" LCD Flat Panel...
Page 7: ...Introduction Rear Introduction Rear Rear 1 POWER S W 2 POWER IN Connection Terminal ON OFF ...
Page 15: ...Accessories Sold Separately Unpacking Unpacking Speaker wire ...
Page 27: ...Installing Stand Kit Installing Stand Kit Installing the Semi Stand ...
Page 47: ...Block Diagram Block Diagram Main Circuit Main Circuit Main ...
Page 48: ...Block Diagram Block Diagram Network Circuit Network Circuit Main ...
Page 50: ...Block Diagram Block Diagram Network Power Network Power Network Power Tree ...
Page 56: ...Schematics Power Schematics Power IC601 3 3V 1 8V IC604 3 3V 2 5V IC602 12V 3 3V ...
Page 57: ...Schematics Power Schematics Power IC610 5V 3 3V ...
Page 67: ...Schematics Sound AMP Schematics Sound AMP Sound Processor IC502 Speaker output CN506 ...
Page 68: ...Schematics EPROM Schematics EPROM Function CN402 RS232 IC109 EEPROM IC403 ...
Page 102: ...MDC Multi Display Control Program MDC Multi Display Control Program How to install ...
Page 120: ...MDC Multi Display Control Program MDC Multi Display Control Program ...
Page 130: ...40 SMPS Board Block Diagram 40 SMPS Board Block Diagram ...
Page 131: ...46 SMPS Board Block Diagram 46 SMPS Board Block Diagram ...
Page 132: ...Network Power Board Block Diagram Network Power Board Block Diagram ...