
6-6
3. Checking the back light unit
NG
NG
OK
NG
OK
Is 12V voltage provided to
inverter?
Failure point
Check the ON/FF signal
of equal “H” at CN1 pin6?
Check Inverter F1 open.
Failure point
F1 failure. Replace the
inverter board.
Failure point
1) Inverter cable disconnection.
OK
1)
µ
-p failure.
2) Printed wire broke
between
µ
-p trace to CN1
pin6.
Is 12V-source voltage
provided to pins 1 and 2 of
CN1 in inverter module?
OK
NG
Failure point
Inverter cable disconnection.
Check Power Board.