No Display (No Power) - LG LDG3015SB Service Manual

CHECKING FLOW CHART BY FAILURE

No display (No power)

Control Dead
Select a function
Any beeping
Sound?
Yes
Replace the Oven system
PCB (EBR72822702)
Normal?
Yes
END
No
No
Replace the DISPLAY PCB
(EBR72822801)
Normal?
Yes
END
Check AC input of SMPS PCB
- SMPS PCB CN1 (pin 1 and 3)
No
Replace the SMPS PCB
(EBR64624702)
END
10-2
120V AC?
Yes
2
Replace the SMPS PCB
(EBR64624702)
Normal?
Yes
END
No
1
No
3