There could be several things going wrong. You could have damage to the power supply and or main board. I would recommend a professional diagnosis to pinpoint the problem.
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Program Your Cable or Satellite Remote Control to Work with Your TCL Roku TV
Providers
Codes for TCL Roku TVs
Programming Instructions
Comcast Cable (Xfinity)
11756, 12434, 12290, 12292
Comcast
Cox Communications
1756, 11756, 12434
Cox
DISH Satellite TV
1756, 535, 645
DISH Network
Frontier Communications
688
Frontier Communications
https://support.tclusa.com/tv-remote-codes/roku-tv-remote-codes
any answer here will be pure guessing. and the cost versus the risk of not working by replacing all four boards may make it worth buying a new tv instead.
if you were to try and fix it i would not do anything more than trying to fix or replace the power supply board. . if the power surge has gone further in the electronics. its rarely worth trying to fix
The power surge from lightening can come in thru the antenna or cable box. Also just the proximity of lightening can damage one item and not another. An ic chip can be destroyed from the charge in the air.Likely took out power and main brd both.
tried to reset the tv first, if struck by lightning the tuner will be damaged or the main board but since the tv is still working so i think not the lightning was the main cause.
Ensure the power outlet has power. Try TV on a different power outlet. Switch off TV manually, switch off power, remove plug and retry after 48 hours. If problem persists, please refer it to a qualified service technician.
Obviously the tv took the hit but the dvd player was spared. check and replace the fuse in the tv if it's open. If this does not fix it then get an est and file a claim with you homeowners insurance.
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