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Fault Diagnosis And Trouble Shooting; Troubleshooting - LG WD-1247RD Service Manual

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8-2.FAULT DIAGNOSIS AND TROUBLE SHOOTING

CAUTION
1. Be careful of electric shock or disconnecting the parts while trouble shooting.
2. First of all, check the connection of each part terminal with wiring diagram.
3. If you replace the MAIN PWB ASSEMBLY, Put in the connectors correctly.
NO POWER
When measuring the voltage of the outlet,
is the voltage AC 220-240V~?
YES
Is the led(1) on?
YES
Is connector(2) disconnected or
disassembled?
Is wire of the PWB ASSEMBLY disconnected?
Replace PWB ASSEMBLY
NO
NO
20
NO
Check the fuse?
NO
Replace MAIN PWB
ASSEMBLY
Reconnect the PWB
YES
ASSEMBLY
Reconnect the PWB
YES
ASSEMBLY

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