Download the user manual to your TV. It will have all details about how to reset it to factory default. A factory default set should be done now. To download its user manual, click here.
SOURCE: WONT TURN ON
Most likely, the problem is a defective Main Processor Board. This is the board with the antenna, RCA and HDMI plugs. You cant repair or replace component parts on this board, so dont even try. You must replace the complete board. The TV says Sylvania, but it is a bloody Funia TV. Several years ago this foreign company bought out broke-azzz Sylvania . They are still carrying the Sylvania name since Sylvania was a popular TV name in the 70s. Every electronic company in the USA is now owned by the Chinese, so call Funai and order the part from them. Dont be surprise if they dont have a clue what the heck you asking for. America and all electronics have gone to the puddles. Do you know why? GREED.
SOURCE: tv tuned off and now red and green light just
It's the #1 plaguing issue with flat panel TV made by funai corp. Sylvania is one of those TV made by them.
Normally, when this happens, the TV goes into " Protection Mode " because of a failing circuit board. Most likely the TV has a power supply related problem.
The most common thing to go out on flat panel TVs is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board. But, I can't say it's 100% the problem because I can't actually look at the tv over the internet. I can only make guesses with the symptom.
You have a few choices:
1. You can try leaving the TV unplugged for 30 minutes so the TV can reset itself.
2. If by chance the TV is still under warranty, go that route.
3. If you have some electronic experience, if you can find and purchase a Service Manual over the internet; It will help you diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists.Usually, cost under $20. And most cases the new part cost less than $15.
4. Pay a TV shop to do the repairs. It maybe costly, but get an estimate of how much they will charge. That way you can decide if it worth repairing or replacing the whole TV.
I hope I shed some light on the subject for you.
SOURCE: Comcast remote control won't turn on or off Sylvania LC321SS9 TV
Usually you need to make the remote search for the right code that will work with your TV. Google you Comcast remote model for instructions and it willl how you the right steps.
SOURCE: Comcast remote cannot operate Funai/Sylvania
Currently there are no remotes nor any codes for them that will operate virtually any sylvania tv's. sorry, it's like the only model we have no resource for as of yet. -Comcast Tech
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