LG GC-B207GLQV

Replace
MAIN PCB
After plug in,
If CO E disappeared,
Explain to the customer!
Yes
MAIN PCB
Is the CON5 loose?
No
Yes
Test Point Result
pin15 To pin18 1 V to 4 V
Receive signal voltage
Main PCB
Is the voltage between pin15
and pin15 of CON5 as below?
No
Reconnect
Replace
MAIN PCB
Yes
Test Point Result
Pin15 To pin17 1 V to 4 V
Send signal Voltage
Main PCB
Is the voltage between pin15
and pin17 of CON5 as below?
No
Pin15Pin18
Pin15Pin17
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