No Display (No Power) - LG LWD3010ST Service Manual

CHECKING FLOW CHART BY FAIRURE

No Display (No Power)

Control Dead
Select a function
Any beeping
Sound?
Yes
Replace the MAIN PCB
(EBR64624503)
Normal?
Yes
END
No
No
Replace the DISPLAY
(EAJ61309901)
Normal?
Yes
END
Check AC input of SMPS PCB
- SMPS PCB CN1 (pin 1 and 3)
No
Replace the SMPS PCB
(EBR64624701)
END
9-2
120V AC?
Yes
2
Replace the SMPS PCB
(EBR64624701)
Normal?
Yes
END
No
1
No
3