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BACKLIGHT DIMMING PROBLEMS :
Go to
•
Menu
£
Picture
£
Backlight
and vary level (0 – 50)
If no backlight changes observed:
•
Panel Connector
9
CNL801
minus (-) pin voltages
and
PWM_BLU
control voltages
CNM801
CNM802
while
changing backlight level.
If
•
minus (-) pin voltages
don’t change, and
PWM_BLU
changes, replace
SMPS
.
If
•
PWM_BLU
doesn’t change replace
Main/T-Con Board
.
Backlight Test :
In normal TV operating mode, use standard
IR Remote
or
Factory Remote
with commands.
Go to
MUTE
£
4
£
1
£
9
£
EXIT
4-10
4. Troubleshooting