Question about Mitsubishi VS-5043 50" Rear Projection Television

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TROUBLE SHOOTING TV

I HAVE THE PROBLEM IT SEEMS EVERYONE ELSE IS HAVING A POWER SURGE AND NOW I TRY TO TURN ON TV IT TURNS ON THEN RIGHT BACK OFF AGAIN AND MAKES THE CLICKING NOISE. FIRST WHERE IS THE RESET BUTTON?

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Youve lost your power supply there is no reset for your model tv.

Posted on Aug 25, 2008

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First is you removed power by unplugging the surge protector---this may have confused the micro in the set.

Unplug the set itself (with it turned off) for a while and plug it back to see--sounds like this is your problem to me. Usually in this case only the on/off button on the set works.

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Tv doesn't come on. when tring to turn on you hear a buzz then it turns back off. Could it be the power supply board?


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Directv box went out yesterday and had it replaced today. Went to turn tv back on and it turns on for about 2 seconds then turns back off. Unplugged for about 5 minutes and still does the same thing. ...


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7 blinks followed by 8 blinks


The buzzing sound you hear is typically the FBT shorting out when you turn the TV on. If you open the back panel and watch the FBT as you try to turn on the TV you can see it shorting out. It will be obvious.

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The clicking is the power on relay closing and opening. This happens because the TV has several built in safety systems that will detect and over voltage and over current load situation.The power supply starts up for an instant, senses and overload of either or both kinds and then the safety switches trigger a cutoff. When this happens the power supply will not start up again because another circuit called a latch keeps it disabled. By unplugging the AC cord and trying to start it again releases the latch until the failure triggers it again.
On these TVs the power supply is rarely the cause of the shutdown. Something further down inside the TV has failed. Replacing just the power supply will not fix the problem. The most common reason there would be an overload would be in the high voltage circuit that lights up the 3 CRTs, next would be the coils around the CRTs that bend the beams to make the picture. This is normal circuit aging and wearing out. Unless you are very skilled with trouble shooting TVs I would recommend having a service center look at it. An authorized JVC shop would be your best choice because they will have access to the manuals and bulletins and have probably had other similar JVC units thru their shops.

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