WT4901CW - LG Washing Machine Service Manual (repair manual). Page 37

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37
Replace the 
DISPLAY PCB 
ASSEMBLY
Is the display PCB broken? 
(check the buzzer sound and 
LED light while touch the 
LCD)
Yes
Yes
No
Is the connector connected to 
Main PCB / Display PCB 
disconnected or 
disassembled?
Reconnect or 
repair the 
connector
Connecting connector
Main PCB~ Display PCB
POWER BUTTON DOESN’T WORK
Yes
No
Is the button of panel stuck? 
Repair the button
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