Power Failed(Dead), No Display - LG LRE3061ST Service Manual

CHECKING FLOW CHART BY FAILURE
Power Failed (Dead),
No display?
Plug the unit
1
Check the button beep.
Touch the Clear button,
Can hear the beep sound?
No
2 Is the voltage normal?
Check the AC voltage between
1 st pin and 3 rd pin of CN1.
Is the voltage 120V?
CN1
Yes
Yes
Change the Main PCB
No
Go to No 4
Unplugged the unit
3
Is the connector connected to Main
PCB disconnected or disassembled?
(CN1)
CN1
No
-9-2-
Yes Reconnect or repair the
connector