Question about Sony FD Trinitron WEGA KV-34HS420 34" TV

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PICTURE AND SOUND KEEP GOING OUT AND COME BACK FOR 30 SECONDS

TV TURNS ON PIC AND SOUND FINE THEN PIC AND SOUND ON FOR 30 SEC AND OFF FOR 30 JUST KEEPS GOING BACK AND FORTH. TRIED USING DRY AIR TO REMOVE DUST FROM INSIDE TV, BUT DID NOTHING.

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One of the power supply areas are most likely going intermittent. This can be from cold solder connections on the circuit boards, or from some components failing due to age.

An experienced tech should be able to service your set, but it will be expensive for the time involved. Sometimes these types of faults can be very time consuming to resolve.

Jerry G.

Posted on Nov 25, 2008

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73" Mitsubishi DLP. turned on the tv and got only sound, no picture. after a minute it would shut down and red light would pop on the front. replaced bulb and hooked it back up. now it turns on but af


Try cleaning the little fans that keep the bulb cool, the temp sensor will shut it off so not to damage the bulb , the winning sound may be the fan going bad or not working like it should.

Mar 07, 2013 | Televison & Video

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Turn power on, approx. 30 sec later it the power


It varies as to what is actually making the TV shut down. Shorting the connectors on the A.C. plug have nothing to do with it turning back on. Its just the fact you are unpugging it for a few moments.

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Power light comes on for 2 seconds and then off.


Need to have the power supply rebuilt, expect to pay around $350 Julio at milleniumtvsvc@gmail.com

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1 Answer

T V blinks to black every few seconds otherwise works fine


Sony put i pic killer circut in there tvs. if the tube was not
giving the proper feed voltage on the guns in
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if you turn up the brightness
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1 Answer

Video warps on edges then cuts out to black, then fades back in


Hi,

Please dont rate me if could not fix your problem. Check the tv lamp. If doest work well, replace it. Thank you..

Nov 29, 2008 | Samsung TXM3096WHF 30" TV

1 Answer

Screen Goes Black


it sounds like your "lamp" is going out look for a hidden compartment.. or in your owners manual to see where its located its an easy fix and costs much less than a new tv

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1 Answer

Tv no pic or sound


If you hear the high voltage try to come up and set shuts down in 2 secs it could be your FBT also these sets have alot of poor connections chassis should be resolder.

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1 Answer

Rca d52w15


Most likely a bad flyback. It's a cheap part, but service people are even having a harder time getting ahold of one since they are failing often.

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1 Answer

Rca projection tv sound problem


You could try to get the set fixed but I would say the set is just worn out.

Time to buy a new TV I think (going by the picture above anyway)

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1 Answer

Audio ok, but Video goes from color to black.


the tv turns on fine, but after 5 - 30 min or so, "sometimes MORE " the picture all of a sudden go's black. Sound is ok it is 100% loose contact problem. 1 please check for any connector or print for loose. 2 in signal processor ic there might be loose. remember there is no component failure.

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