No Power On - Mitsubishi E55LCD Service Manual

8. No power on

Check the +12V power provided from Power
Board.
NG
OK
Check the +5V and +3.3V power from IC601.
NG
OK
Proceed section 9 "Checking the operation of
CPU ".
Failure point
Power Board failure.
Failure point
"Checking the DC/DC
converter circuit".
6-12