2014 Sanyo 50" LED DP50E84 main board

[ridgerunner]

The TV started occasionally crackling and popping through the speakers. This went on for a couple of weeks then started to get worse. Finally the set started shutting off and restarting on its own. I opened it up and looked around but did not see anything obvious. While the set was open it started its sound issues and I pressed on the IC pictured and the cracking and popping instantly went away. The set worked great for a few days the started the same problem again. Pressing the same IC had no effect this time. This is my first time working with SMD IC's and I failed miserably. I ended up damaging several mounting pads to the point that the board is no longer usable. I purchased a used main board with the same part number, installed this, hit the power button. The green led on the front of the set came on for about 10 seconds then turned off. The screen flashed momentarily. This happens every time you attempt to power on the unit. I cannot find much info about problems with this set. I am assuming because it is not very old. Has anyone experienced similar problems with this model?

Thanks

[budm]

Re: 2014 Samsung 50" LED DP50E84 main board

Do you SANYO?
Your attached pictures do not seems to work.

[ridgerunner]

Re: 2014 Samsung 50" LED DP50E84 main board

the tv started occasionally crackling and popping through the speakers. This went on for a couple of weeks then started to get worse. Finally the set started shutting off and restarting on its own. I opened it up and looked around but did not see anything obvious. While the set was open it started its sound issues and i pressed on the ic pictured and the cracking and popping instantly went away. The set worked great for a few days the started the same problem again. Pressing the same ic had no effect this time. This is my first time working with smd ic's and i failed miserably. I ended up damaging several mounting pads to the point that the board is no longer usable. I purchased a used main board with the same part number, installed this, hit the power button. The green led on the front of the set came on for about 10 seconds then turned off. The screen flashed momentarily. This happens every time you attempt to power on the unit. I cannot find much info about problems with this set. I am assuming because it is not very old. Has anyone experienced similar problems with this model?

Thanks

[ridgerunner]

Re: 2014 Samsung 50" LED DP50E84 main board

This is the board that I purchased to replace the damaged board.
http://www.ebay.com/itm/261983874921

[ridgerunner]

Re: 2014 Samsung 50" LED DP50E84 main board

Oh yes, it is a Sanyo. I have a Samsung with a main board issue also. Must have been thinking about that one while I was posting.

[tom66]

Re: 2014 Sanyo 50" LED DP50E84 main board

Renamed thread title.

Did you check the panel number matches your old set? For example, your new board may be for LG panel but your set has Chimei panel. Some TV main boards read the T-con EEPROM and will abort if there is a mis match.

It is also possible the board is defective.

[stjeff0]

Re: 2014 Sanyo 50" LED DP50E84 main board

We're working on a DP50E84 also. The symptoms include the flash at start, and then nothing no backlight. If you turn it off and back on, it works great. We've ran it for hours with no other issues. Initially we had a wonky picture due to cables connections from the 120 Hz board to the T-Con. We took the tape off that seemed to be stressing the ribbon cables to the 120 Hz board. That fixed the picture, but it stills doesn't come on until you turn it off and back on.