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I have replaced the main board and the t-con board but still no picture. Powers on and I can click and hear sound.
no back light when I do the flashlight test. Once in a while when I power on I get a quick glimpse of tcl image but then goes black… I purchased 9/2019 and because i can’t produce receipt tcl won’t honor warranty.
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This article will probably help, but do you want to spend $ and your time doing this…
TCL No Backlight, Black Screen, Flashlight Test Good, Menu Sounds Good
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TCL 55S405 purchased December 18, 2018. Backlight/LED failure 09/15/2021.
crwdns2934271:0crwdnd2934271:0 TBonez crwdne2934271:0