Samsung RT44MB - Checking Abnormalities of MAIN PCB ASSY

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2. Checking Abnormalities of MAIN PCB ASS'Y
Start-Up
Is power input between PIN1
and PIN5 on CN01 of MAIN PCB
discharged?
Is FUSE of MAIN PCB OK?
Is soldering and SHORT
on the soldered area of
MAIN PCB OK?
Is COMP RELAY and
defrosting RELAY OK when the
TEST S/W of MAIN PCB is
operated?
Repair Power Cord and
wires.
MAIN PCB ASS'Y is OK
NO
Replace Fuse.
NO
Check soldering.
NO
Check PCB.
NO
YES
YES
YES
YES