Read LG GCWP1069CS2 / GCWP1069QS2 / GCWP1069LS2 Service Manual online
23
9
. DIAGNOSIS AND TROUBLESHOOTING
1. Be careful of electric shock if disconnecting parts while troubleshooting.
2. First, check the connection of each electrical terminal with the wiring diagram.
3. If you replace the MAIN PWB ASSEMBLY, reinsert the connectors correctly.
Is the supplied voltage AC 120 V, 60 Hz?
Is the voltage between the FILTER ASSEMBLY
connectors
connectors
and
AC 120 V, 60 Hz
Is the LED lamp
on?
Are the connectors
on the PWB loose?
Is wire of the DISPLAY PWB ASSEMBLY
broken?
broken?
Replace DISPLAY PWB ASSEMBLY
or repair wire.
or repair wire.
Check the fuse or reset
the circuit breaker.
the circuit breaker.
Replace the FILTER
ASSEMBLY (CIRC).
ASSEMBLY (CIRC).
Replace MAIN PWB
ASSEMBLY.
ASSEMBLY.
Reconnect.
Replace the CABLE
(HARNESS)
(HARNESS)
NO POWER
WARNING
!
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