LG LFC20770SW - Page 52

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3
Check voltage between black & yellow
wires.
No Checking flow Result & SVC Action
Result SVC Action
5VDC Go to step #4
0VDC Replace Main PCB
4
1-. Execute I/M TEST MODE.
Result SVC Action
+/- 9.5VDC Go to step #5
0~1VDC Replace Main PCB
TEST
SWITCH
2-. Check voltage between red & white
wires.