SHARP LC-32CHF5111K - stuck at color test mode

[YellowJacket]

Hi friends,

TV has stuck at - as I googled the term - color test mode. Slowly flashing colors white, red, green, blue, black, over and over again. I tried some hints from internet, like pressing some remote buttons, but nothing worked. I also tried factory reset for Sharp TVs => "while holding vol– & input buttons on tv plug in set when “k” appears push vol– & chan- " , but TV doesn't even start during buttons pressed.
So I decided to flash new firmware to SPI ROM. What do you say, would it help? If so, where can I find some dump? I was unable to find any. Thank you in advance, if you need more information, let me know.

[Davi.p]

Re: SHARP LC-32CHF5111K - stuck at color test mode

The problem is mostly in tcon i think, try this for now, detach one of the tcon output flats when tv on, then turn off, re attach then on.. in extreme cases change tcon.

[YellowJacket]

Re: SHARP LC-32CHF5111K - stuck at color test mode

Davi.p - excelent clue. Yeah, TV works now. There were some damaged pins on ribbon cable between main board and T-Con. By damaged I mean like scuffed or what. I cleaned with IPA for now, if it comes back, I will order a new cable.
Big thanks to you, Davi.p.

[nomoresonys]

Re: SHARP LC-32CHF5111K - stuck at color test mode

ok, so the fix was clean and reset cables.

[Davi.p]

Re: SHARP LC-32CHF5111K - stuck at color test mode

yes of course, if tcon fed but no data in then starts auto test..