SHARP LED TV Model: LC-48LE653U

[Andrew F. Ali]

Hi Friends. I got this TV to repair today. When it is plugged into the ac the white indicator LED comes on the Backlights come on and on the screen I can see the SHARP logo for about 3sec then the set shut down and repeats this cycle. The pwr-on, blu-on signals from the Main Bd cycles. I have a constant 19Vdc std-by voltage. I tested the backlights and the top and bottom strings are 80.6Vdc, resp. I disconnected the Main Bd from the PSU and forced the PSU on with a bench 3Vdc supply the backlights came on and stayed on and is getting a healthy supply.The T-CON Bd is getting a good 12Vdc supply, but cycling with the rest of the TV.
I am thinking this is a Main Bd/Software issue. Is this diagnostic correct and if it is, could someone direct me to where I may get the software??

[budm]

Re: SHARP LED TV Model: LC-48LE653U

It does sound like main board problem. where the exact problem is I do not know.

[Andrew F. Ali]

Re: SHARP LED TV Model: LC-48LE653U

Thanks budm for your response. Is there a site where I may be able to download the software? I think the eeprom may be defective or forgot the info.Attached is a photo of the Main Bd.
The numbers I see on the label: CSD 3648-0122-0395 and another No.: 3648-0122-0150(4A)
I can't seem to find a replacement board either.

[dick_barton]

Re: SHARP LED TV Model: LC-48LE653U

Ignore, (found a mainboard but it was the wrong one.)

[Andrew F. Ali]

Re: SHARP LED TV Model: LC-48LE653U

Thanks dick barton. I was wondering if a 'hard start' might help me reset this?? Press down the VOL DOWN and INPUT buttons then plug into ac. Think I'll try that and see what happens. Will report back

[vinceroger69]

Re: SHARP LED TV Model: LC-48LE653U

Not sure if your a member of this forum but maybe worth asking on here too
http://televid-sib.ru/index.php?board=1178.0

[Andrew F. Ali]

Re: SHARP LED TV Model: LC-48LE653U

OK. Here is the update. I found and purchased an exact board off e-bay for USD 97.00. Kind of expensive but this was the only one available. I received it yesterday and installed it. IT WORKED!!!...TV is now fixed. I did not have to do any adjustments. Just plug n' play. Thanks budm you were correct, once again. Thanks to also to dick barton and vinceroger69 for helping me out here. Apparently this is a common problem with the LE653U series from the research done on other forums.

[dick_barton]

Re: SHARP LED TV Model: LC-48LE653U

Glad you got there in the end but pity about the price.

[Andrew F. Ali]

Re: SHARP LED TV Model: LC-48LE653U

Converted to my currency that is TTD 710.00. The price of the TV is TTD 4500.00. The 'Customer' was happy to get his TV this morning. So I guess it worked out OK after all.

[budm]

Re: SHARP LED TV Model: LC-48LE653U

Thanks for the follow-up on the repair, glad to know it is fixed.