Picture Issues with tv. LG 55lv5500

[DustyBeatz]

My tv powered on, but no picture or sound. The only fixes i could find were put the main board in the oven or replace a chip, but Ive never sodered before. I bought a main board off ebay that was in a 47lv5500 tv. The part number on the board is the same. After replacing the board, i got picture and sound. The problem is the picture is really fuzzy and there are a lot of coloring issues. I attached pictures. I pulled out one of the ribbons attached to the tcon board and got no picture. I replugged it in and unplugged the other ribbon and got a clearer picture but got black vertical lines throughout the picture. Any suggestions?

[budm]

Re: Picture Issues with tv. LG 55lv5500

The EAX??? white silkscreen as printed on the main board PCB is the Blank PCB P/N, the blank PCB can be stuffed with different parts to make many different PCB assemblies for the needed TV model number. So the board you bought is made for 47" model as printed on the sticker. You need to get the correct PCB assembly to match your model or you will have to find out what the exact parts and firmware are needed to convert the board made for 47" to be for 55" model.

[DustyBeatz]

Re: Picture Issues with tv. LG 55lv5500

EAX63333404 (0)

Im new to not only forums, but also tinkering with tvs. This EAX number matches the EAX number on the original board. Not sure if that matters.

[budm]

Re: Picture Issues with tv. LG 55lv5500

EAX63333404 (0)

Im new to not only forums, but also tinkering with tvs. This EAX number matches the EAX number on the original board. Not sure if that matters.

That is the Blank PCB P/N as explained.
See the white sticker with '47LVxxxx-UA' that sticker tells you that PCB assembly is made for 47LVxxx TV model. EBT or EBR on the barcode sticker is for the PCB assembly manufacturer P/N, you also have SVC Code number too. There are so many thing you have to match.
If the board you bought is also made for 55" then they would have put that model on the sticker also.
Look at the barcode sticker of your old board and the new board. That model has more than one version of the PCB assemblies.
Look here at some of the details description of each main board:
https://www.shopjimmy.com/catalogsea...?q=LG+55lv5500

I.E.
Blank board number: EAX63333404(0)
Mfg. PCB assembly P/N: LG EBR71850803, LG EBT61373708
For Panel Sticker Number: LC550EUF-SDA1
https://www.shopjimmy.com/lg-ebt6137...5lv5500-ua.htm

[nomoresonys]

Re: Picture Issues with tv. LG 55lv5500

Farther down on that page is a repair service for 50 bux or a mainboard for 75, like it says in the ad for mainboard, you can message them if any questions, you could message them with the numbers from your white sticker.

[DustyBeatz]

Re: Picture Issues with tv. LG 55lv5500

Well something I learned I guess. I will try the main board that actually matches my tv. Thank you guys for the helpful info!

[nomoresonys]

Re: Picture Issues with tv. LG 55lv5500

No problem, let us know how it goes.