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The TV was on and then all of a sudden no picture...no sound.. we then checked the power supply...and power was going to the tv....we unplugged...then plugged back up..a little sound..then a horizonal line went across the screen...then black..Can you tell us what we need to check...or what the problem my be?
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Hi there
I would go to menu on the remote , from there to picture go down the list, if you do not find anything there to help you. Go to Support and to the E manual .
Kolbrun
Your symptoms exactly match this scenario: a component involved in picture & sound was failing intermittently, then progressed to a hard failure.
My suspect: a power capacitor in the power supply. They sometimes fail this way - when the dielectric breaks down completely, then the power supply fails, causing no pic/sound.
Fix: replace power supply (or the specific capacitor, if you can determine which one died).
Power supply board is dead.That the board,the power a/c cord go into it.Replaced the power supply board will solved ur tv power lite LED light indicator blinking and ur tv power will be stable and work again.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
Check if you would have the same if you use a different signal source. Another DVD Player, a playstation or other AV devices. The source or the TV may not be understanding each other, one may be sending analog signals while TV is only recognizing digital.
Well, no sound no picture = power supply unit
Sound no picture= flyback
picture no sound =tuner/audio logic
You get my drift?
You power supply is bad you replace it you got another new TV, with this digital conversion hitting I would rather advise you to get a nice flat panel and donate that one to Goodwill
possibly external power supply faulty under load it may fail these power supplies ofen have capacitor failure open the power supply to check for leaking/bulging/swollen capacitor is around 2000uf rated at 12v
This indicates a problem in the power supply either the low voltage switching supply or the High voltage power supply. The sounds you hear is the shutdown circuit activating, I would not suggest that you try to repair this problem because of the dangers involved. I would suggest that you take it to a qualified TV repair shop. This problem should not cost you much, however it is the best choice for the problem you described.
Check soldered in fuse R607 in power supply circuit =
If open, replace it and bad converter xistors ( 2SC4834)
Next, replace shorted horizontal output transistor w/ first Quality.
Solder any / all bad connects,esp.horiz drive to base of horiz.
o / p xistor. Soldering is critical or it will blow up again......
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