Samsung ME21F707MJT Service Manual page 35

5. Troubleshooting
5-2-1 Communication Error between Main PCB and Sub PCB
"E-83" is displayed.
Check the connection
between wire harness-C and the board.
Are they connected properly?
Check the connection
between wire harness-C and wire harness-D.
Are they connected properly?
Check Communication Wire
(Wire harness-C and Wire harness-D).
Are they damaged?
After Power > On,
NO
does the symptom continue?
Replace the Main PBA
and Sub module.
Perform the operation again and check if it
is working properly.
YES
NO
NO
S/W Error
YES
NO
Connect the wire properly.
NO
Connect the both
wire properly.
YES
Replace the wire.
35