Sharp LC-60C6600U main board or main board repair needed

[mu2]

Hi,

Anyone out there have a working main board for a Sharp LC-60C6600U?
The tv I have hangs up on the Sharp logo then goes off and repeats the cycle. I've tried various reset methods including trying to force a software upgrade with a flash drive.
I suspect that the eeprom is corrupt but I haven't found anyone selling just the eeprom or anyone repairing the main board.
The parts numbers on the board are DUNTKG460WE01. I think the original Sharp number is DKEYMG460FM02 as there is a sticker on the board with G460FM02
I believe the same board is used in several 60" and 70" Sharp models.

Thanks
Mike

[Nick's Tvs]

Re: Sharp LC-60C6600U main board or main board repair needed

Mike,

I have tried to fix this board myself in the past, tried a few different data recovery techniques off the Nand chip which holds the data, not sure if I was successful, but the symptoms didn't change after placing a new chip on. I have tried replacing the main CPU chip in case it could have been at fault somehow, tried replacing some of the other parts as well with no difference in symptoms. That Main CPU is a pain to replace, to many legs.
Let me know if you are able to find a new board and if there are more than one available. I would love to stock up on this guy.
Good luck .

[mu2]

Re: Sharp LC-60C6600U main board or main board repair needed

Nick,

That's really good information. So it looks like the best solution is another main board.
I've seen the same board number supposedly used in the 70" version of this set. If I happen to find one that is from a 70" will I have to get into the service menu and change settings - like the panel for example. I've done that for Samsung sets but never for a Sharp.
Is the G460FM02 the main number that I should look for in a replacement?
I also noticed that there isn't a heat sink on the processor but there is a thermal pad on the underside of the board directly under it. The pad is between the board and chassis. Makes me wonder if overheating is a cause of the issues.
Everyone seems to be out of the board but if I find a stash, I'll let you know.
I did find that PTS has a repair service for $125.

Thanks again,
Mike

[mu2]

Re: Sharp LC-60C6600U main board or main board repair needed

I found a replacement main board with exact part numbers.
Tv is now fully functional.
Just wanted to close out this thread.

Mike

[Andrunas]

Re: Sharp LC-60C6600U main board or main board repair needed

Hello!

I've got a very similar set (Sharp LC-60LE660U) that won't work. When plugged in, the white LED beneath the center of the screen immediately comes on, and I can see that the backlights also come on. But there's no picture, and the TV can't be turned on or off, neither with the remote nor with the Power button on the set. The Power Supply/LED board, and also the TCON board, have been substituted, but nothing changed. I assume the problem is in the Main board (DKEYMG460FM01)--which doesn't seem to have any user-replaceable components on it. I'm having trouble finding a replacement board, but your post suggests that you were able to. Can you tell me where you found it, and what you had to pay for it?

Also, I've read that the manufacturer (Sharp) says that the DKEYMG460FM02 or the DKEYMG460FM02N are substitute replacements. Can anyone verify this? And if those replacements are used, are any special adjustments or re-settings needed?

Thank you very much for any help you're able to give!

Vincent Andrunas
San Diego, CA

[budm]

Re: Sharp LC-60C6600U main board or main board repair needed

Look at SJ substituted boards:
http://www.shopjimmy.com/sharp-dkeym...c-60le660u.htm

[nomoresonys]

Re: Sharp LC-60C6600U main board or main board repair needed

https://www.ebay.com/itm/SHARP-Main-...oAAOSwaVRaqQLo
Seems a little pricey at 145 bucks free shipping, there is a make offer option on that one.

[Andrunas]

Re: Sharp LC-60C6600U main board or main board repair needed

Thanks for the help, guys... Shop Jimmy had nothing (I had tried there first), and Encompass had nothing in stock, but would accept defective boards for repair (about $141; probably more for shipping and possibly tax...). The e-bay one (for $145) was gone, despite being pricey... I found some online references that said DKEYMG460FM02N was a substitute/replacement for the original (DKEYMG460FM01), and I found one at Walker Global Parts for $92 plus shipping. They show a Florida location, but the board shipped from Buffalo, NY to me here in California--two days by Priority Mail (and no tax, whether you have a resale license or not). Cheerful customer service, speedy shipping (ordered Wednesday afternoon; arrived Friday morning). Substitution was good--the TV now works perfectly fine.

PTS Electronics (http://www.ptselectronicsinc.com) also says it will repair these boards for $95. They show none in stock, but say that you can send yours in for a fix. Of course, I expect you'll have to pay shipping both ways...

[nomoresonys]

Re: Sharp LC-60C6600U main board or main board repair needed

Good news, thanks for update.