My Epic A42T Sport treadmill screen stays black and doesn’t seem to turn on at all when I plug in and turn on my machine. I used it with no issue just yesterday. Powered it off and unplugged it while not in use. I checked that the outlet is good/has power to it.

SOURCE: KDS usa flat screen monitor model 780 2003

Shine a light on the screen and see if the Icons are there.. Could be a CCFL bad or inverter problem..

SOURCE: Machine stopped working

I actually returned the machine, and was given a replacement.

SOURCE: Vizio Plasma 42HDTV - Power, No Video

Most likely the TV has a power supply related problem. It's possible that it maybe a bad capacitor or transformer on the power supply board. 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. If by chance the TV is still under warranty, go that route.
2. 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.
3. 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: My tv screen went black and will not turn on. I

Power supply board,the cause,must replaced.

SOURCE: hp dv2910us screen stays black

Hi,
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