Re: Sharp Aquos Quattron LC-52LE810UN power cycle odd issue



ok I'll look into this!!...

Re: Sharp Aquos Quattron LC-52LE810UN power cycle odd issue

anyone have any idea? I'm pretty sure I have a cold joint on an IC on the main board but my question is which one?

Re: Sharp Aquos Quattron LC-52LE810UN power cycle odd issue

here is a better pic of board layout....

Re: Sharp Aquos Quattron LC-52LE810UN power cycle odd issue

here are a few pics. have everything connected but the panel itself and it behaves the exact same way.

I'm almost positive it's a thermal issue I'm just not sure what chips would make the set behave this way.

I'm thinking the freeze spray is a good idea as well....

Re: Sharp Aquos Quattron LC-52LE810UN power cycle odd issue

well I have the panel totally dis connected and the lights are acting the same.

it sure seems like solder on an IC or something. I guess a question would be, is there a particular IC that could control these led , then over heat and act up?

hey guys,

Ive been a long time lurker, I am a repair tech and I like to help people out when I can.

I have the above said set, given to me from a frustrated customer who has had it into 3 different shops and no joy on the repair. pretty odd I thought.

anyway, the symptom is as follows.

when the set is totally cold, it fires on no problem and will stay lit sometimes for up to 5 full mins , sometimes more sometimes less. then it starts power cycling. When it cycles the led light and shut down. There is no real code happening here, the...

Re: New Members - please post your introductions here

hello, im the electronic santa and i repair arcade pcbs, crt monitors, game consoles and vintage electronics including tube amplifiers and old radios

im in ontario canada

just wanted to say hi!!!!!!!!!!!!