sharp lc37bx5m

[willyam1]

hi to all.
this tv come on green led light ther backlight for a few sec the go off.
made the reset procedoor the letter K APEERS and the backlight goes off again.
green led stay on .
its seems to me that the inverter master slave is the problem or backlight ccfl is the problem IM3826-1 IM3826-2 RUNTKA216WJZZ.
24v ok i check the inv transformer ok all fet ok.
ic controller bd9777.
how to bypass this protect inv problem.
willyam

[willyam1]

Re: sharp lc37bx5m

hi.
to bypass the protect in ic BD9777 PIN 14 SHOULD BE CONECTED TO GND.
backlight is working but after a few min one of the trasformer is very hot and can see the pulses very distortion.
now have to find tran OR TO CHANGE THE INVERTER.
WILLYAM

[tom66]

Re: sharp lc37bx5m

You could also have a bad bulb in the panel.

[willyam1]

Re: sharp lc37bx5m

could be but useslly when bad bulb is bad the tras is not hot.
willyam