Troubleshooting - GE FRU-57QL Series Service Manual

1. Faulty Start ( Lights OFF, Front PCB Power Dead )
Power plug or fuse is
connected?
1st power of SMPS
Main PCB Fuse is
connected?
Voltage value on
Main PCB is OK?
Wire connection of
Front PCB is OK?
Checkup and connect
Front PCB wires
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Start
Yes
is ON?
Yes
Yes
Yes
Yes
No
Chage the plug or Fuse
No
Check the plug connection
from compressor room and to
CN1 of Main PCB
No
Change the fuse
( on the Main PCB )
No
Change the Main PCB
No
Chage Front PCB
35
TROUBLE SHOOTING