Vizio V555-G1 stuck on wallpaper; now stuck on V logo

[nomoresonys]

Test any caps that lead back to the chips, usually they are pretty close to the chip.

[x_orange90_x]

Test any caps that lead back to the chips, usually they are pretty close to the chip.

There's quite a few there! Would you say check any within the white box around the chip?

[nomoresonys]

Sure.

[lotas]

If some of the caps were shorted (and they are usually connected to the power supply), then the TV would not turn on at all and there would be no logo on the screen.

[nomoresonys]

Sure, it's troubleshooting for everyone, in this case we are concerned with the VOLTAGE checking, not if there's a short.

[lotas]

Test the little brown mlc caps around the mediatec chip, see if any are shorted, do the same for the eMMC.

I wrote about this.

[Diah]

its non HW issue, neither eMMC dead---- its just firmware issue chromecast os.. POINT

[x_orange90_x]

So there's nothing that can be done without removing the eMMC and reprogramming? I don't have the hardware for this so I imagine a new board is my only hope in getting this tv working again.

[nomoresonys]

Well looks bad, probably an eMMC issue, symptoms are there, maybe Diah is right on his theory, check ebay, they might be 25 to 40 bux for a mainboard, which isn't that bad for a 55. if you get one make sure you match up the digits on the white bar code sticker to insure a match.

[x_orange90_x]

Well looks bad, probably an eMMC issue, symptoms are there, maybe Diah is right on his theory, check ebay, they might be 25 to 40 bux for a mainboard, which isn't that bad for a 55. if you get one make sure you match up the digits on the white bar code sticker to insure a match.

It makes me so paranoid when there's SPECIFIC model boards but many models used for a single tv. In the case of this tv I've found there are two physically different boards, one having less ribbon connectors than the other.

[diif]

It depends on the serial number as to which board you use. https://www.shopjimmy.com/search.php..._query=V555-G1

[x_orange90_x]

It depends on the serial number as to which board you use. https://www.shopjimmy.com/search.php..._query=V555-G1

Mine is LTMWYILV which looks to be the most expensive and hardest to find 🙄 I did find the following that according to SJ is compatible:

https://shortcircuitsolution.com/pro...caAlDMEALw_wcB

[nomoresonys]

Yep, that's a match, all the serials that sj lists will work and both these bar code numbers 756TXICB02K040 or 905TXJSA550005, they are interchangeable.

[nomoresonys]

That one is a little cheaper but not much of a warranty: https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw= 756TXICB02K040&_sacat=0&_odkw=+905TXJSA550005&_osa cat=0&_sop=15

[x_orange90_x]

That one is a little cheaper but not much of a warranty: https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw= 756TXICB02K040&_sacat=0&_odkw=+905TXJSA550005&_osa cat=0&_sop=15

Nice! Thanks for the help! I made an offer on one so we'll see how it goes. I'm a little nervous though because I've read about people replacing main boards in Vizios with this same problem and it didn't fix it... Somehow.

[lotas]

Nice! Thanks for the help! I made an offer on one so we'll see how it goes. I'm a little nervous though because I've read about people replacing main boards in Vizios with this same problem and it didn't fix it... Somehow.

This is because people buy a working board with a broken screen, and then resell their non-working board to someone else....

[nomoresonys]

This is because people buy a working board with a broken screen, and then resell their non-working board to someone else....

You evidently don't know how ebay works, if you are sold a bad board, you get ALL your money back, so the vast majority of seller are NOT selling bad boards on purpose. Plus most people are honest, at least where I come from.

[lotas]

So, maybe you burned it during connection... and or damaged it during transportation and delivery, and the seller will prove that everything worked for him, there's no way to prove it.

[nomoresonys]

Doesn't matter, if buyer says it was bad, they get a refund, PERIOD. A seller with any sense insures the board.

[nomoresonys]

This is because people buy a working board with a broken screen, and then resell their non-working board to someone else....

Was speaking to THIS, where you basically call everyone a crook, I've bought hundreds of boards from ebay and as far as I recall, only received one bad tcon, which was refunded on the spot, that's who's selling things on ebay U.S.