WT-R1075TH - LG Washing Machine Service Manual (repair manual). Page 51

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50
4-9-1. TROUBLESHOOTING ELSE
Is the button of panel 
stuck? 
Is the display PCB broken? 
(check the buzzer sound 
and LED light 
while push the button )
Replace the 
DISPLAY 
PWB 
ASSEMBLY
Repair the 
button
BUTTON DOESN’T WORK
No
Yes
Yes
Yes
No
Reconnect or 
Repair 
the connector
Is the connector connected 
to Main PWB / Display 
PWB disconnected or 
disassembled? 
Connecting connector
MAIN PWB~ Display PWB
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