The tv screen does not turn on tv srceen blandk , use to have to wait for the light to turn on, then hit the switch on as soon as the light turns on, if not right away then the picture does not turn on at all.the tv is a prima LCD flat screen

Sustain board fault. If you wish to get some details; check the site linked here. Pull up older posts. http://electronicshelponline.blogspot.com/

Most likely you have a fault in the back light circuit. To verify this, turn on the set, when the screen goes black, take a bright flashlight and shine it on the screen. It may be easier to dim the lights in the room so that you can see the faint image on the screen. If you see the faint image, you indeed have a back light problem. You will need to get a diagnoses performed on the set to track down the problem

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turn tv on
on remote
1. hit tv
2. hold down setup till it blinks twice(tv button light)
3.then press 991 wait till it blinks (tv button light)
4.press channel up slowly until tv turns off
5. once it turns off hit setup again
6. press the tv then power button and then see if tv turns on if not then you just missed the code(repeat)

My flat screen will not turn on the green light flashes for a while then stops

1) Can be dust do a good clean
2)Check for the fuse and change it if needed.
3) Capacitor needs to be changed, you'll have to findout which one.

Hope it helps, good luck

Try holding the Play/Pause button down for a few seconds. Like maybe 5 or so, thats how my 3rd gen turns off.

it isnt the Y-SUS board, it is the Power supply, iv fixed this exact problem twice in the last month, try turning the tv on, and when it turns green, unplug it real fast, while light is still green, after 15 seconds plug it back in, then hit the power button, if it dont come on, hit the power button again, this time, as soon as it turns off, hit the power button again to turn back on, sometimes you can trick the tv and it will turn on, at least i was able to do it, and once it comes on, it should work fine, untill you turn it off again.

you need to hit the tv button, then hold down the setup untill the lights plink twice, then hit 991, then power, if it doesnt turn off, hit tv again, then the power again, keep doing that untill the tv turns off, as soon at it turns off, you need to hit the set up button again, that locks in the code, then you should be able to turn it back on with the remote

Try unplugging and replugging after waiting.