LG LD1455WLFCS2 - Troubleshooting: No Power; No Power Diagnosis Flowchart

Is nine pin wire of display
PCB Assembly broken?
Replace the
display PCB
assembly.
Check the
fuse or reset
the circuit
breaker.
Is the supplied voltage
230V AC?(+10%, -15%)
Yes
No
No
No
Yes
Yes
Is the current rating of
multi-outlet power strip
enough?
(Avoid connecting several
electric devices )
Alternate
with
explanation.
Is the connector
connected to PCB/Noise
filter disconnected or
disassembled?
Reconnect
or repair the
connector.
No
No
Replace the
main PCB
assembly.
Is LED on while the power
is on?
Is the connector
connected to Main PCB
Assembly disconnected or
disassembled?
Reconnect
or repair the
connector.
No
Yes
Yes
No Power
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