Re: Sharp LC50LE752E no picture and backlight, indicator light is lit

Thank you for your reply Diah.
Due to travel I have only been able to test it yesterday.

I identified 3 memory chips (IC3501, IC3502, IC3503) and used freeze spray on all of them and tried to turn the TV on (1st attempt). Unfortunately no change. Tried the freeze spray on the standby chip as well (IC3800)(2nd attempt) as well as the complete region of that side of the main board (3rd attempt). No change in any of the attempts.

What other things could the culprit be?

Re: Sharp LC50LE752E no picture and backlight, indicator light is lit

Working link to board diagrams:
[url]https://1drv.ms/b/s!AkpE6xgs6VHNhGPiV_knaaYrNn3R?e=O5Mh3S[/url]Re: Sharp LC50LE752E no picture and ...e=O5Mh3S[/url]

I acquired a free 50” TV. IT is a Sharp LC50LE752E. It does not show a picture and has no backlight, although the indicator light turns blue meaning it has turned on.

When power is plugged in, the indicator light will turn on blue, the backlight stays off and nothing is visible, even with a flashlight. When pressing the touch buttons on the tv nothing happens. When pressing buttons on the remote control the indicator light will blink indicating the IRsignal was received, but nothing happens.

When I hold the force-on-combination it will turn on. It then shows a perfect...

Re: New Members - please post your introductions here

Hello all. I am royzhero from Netherlands. Iam a hobbyist in electronics repair