Question about Zenith Televison & Video

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My Zenith tv rarely turns on clicks and goes to standby and im not sure what its call but a yellow transformer on the power board make a squealing nose for like 5 seconds after it goes to standby. No Capacitors are swollen and after i used the auto convergence it turned its self off and i haven't been able to get it to turn on since even if i can get a new power board i dont know where to look?

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To find a new power supply board all you need to do is search on Ebay or Google etc with your model number. Also try shopjimmy.com

Posted on May 24, 2011

  • Joeneedhelpi May 24, 2011

    also it shut off during auto convergence and now the pic has a ghost effect there is not manual convergence mode

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1 Answer

Won't power on


Sounds like a Zenith or LG TV. It is most probably the Y board, when you hear the clicking sound is usually that. I am sharing this with you because it happened to me with a Zenith (POS). The red light (on my TV) is in the bottom right corner. In my case it was the Y Board. Best of luck

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My 40' vivo tv has turned off and won't turn back on but the red stand by light is on??


If the standby light is on and it does not respond, it is most likely to be a problem with the power supply . First try this, unplug and leave the set like that for a few hours. Then plug it back in to see if the tv attempts to turn on when you try to power it up. See if you hear a "click" even if it goes back to standby. Let me know what you found so that I can help you test the power supply board to confirm, if necessary.

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Sony Bravia LCD KLV-32U300A Symptoms: ~ powering up problem, whenever try to turn on click twice and power goes completely off no standby indicator as well. i have to discharge the stored current in the...


I know its a 32 inch TVand its probably about 2 years old, give or take. If you got a warranty on it, I suggest calling whoever you got it from (BestBuy,Amazon, etc) and seeing what they can do for you to get it fixed for free. Otherwise call Sony abotu getting a real tech out to either fix or swap parts on the TV at your house, or where to send it for repair. Depending on what it costs, you are probably better off buying a new 32inch LCD TV for about $400.

It seems you have isolated it down to the power supply though. If you are confident enough, you can get a replacement on ebay for abotu $100.

Just depends on what you value more: time or money.

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Hi, i have viewsonic 1940w. When i turn it on it makes buzzing sound and after 5-30 seconds it goes in stand by mode(orange light). Sometimes screen flickers to. If you turn off monitor and on again you...


I fixed this same Viewsonic problem by replacing the electrolytic caps on the power board and re-soldering the power transformer joints. The noise is coming from the transformer, if you torque it the noise stops. Cold solder joints must have been the cause (large posts did not heat up enough during construction). The bad joints might have caused a cap to overheat too, not sure but one was swollen and leaking and after replacing them the squealing was stronger and allowed a longer running time to locate the cold joint.

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1 Answer

Won't turn on - relay clicks, power supply squeals, relay clicks, etc,


The television has a protection circuit. Sound like you know something about electronics so that is cool.

I suspect the HOT or High Voltage Transformer. If you want to operate on it, they typically will short externally from moisture or plastic high voltage breakdown. The TV starts, shorts as it cannot come to full high voltage, then shuts down. If your brave, you can unsolder the HOT which is the part that is on the main board or that comes from the top of the picture tube wire into a dark or spaceship type object.look underneath, sometimes they short underneath and you can scrap the carbon and get it to at least start up and work. Do not leave this as a fix as it can be a fire hazard.


The HOT is the most common. They are around 20-60 bucks. 34" TV. I am assuming this one without looking it up it is NOT a flat screen, as most do not squeal like that nor do they have to de-gausse like the old ones. I just looked it up and yes it is not a flat screen. Old school, so that is more thank likely the problem.

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1 Answer

Hi thanks for replying


The clicks you are referring to sound like High Voltage Leaks or Arcing. While it is clicking check for sparks around the high voltage transformer only with your eyes from a distance. If you see sparks shut it off immediately.

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1 Answer

Won't turn on - relay clicks, power supply squeals, relay clicks, etc,


need check B+, standby power supply, and Horizontal defletion and components

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1 Answer

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Sounds pretty bad to me, I had a computer monitor that did a similar thing when plugged in after blowing, it's not a good thing. I didn't even bother to mess with it. You may have to replace the whole power board or at least have a whole handful of pieces to re-solder. It most likely isn't worth it unless your other tv's are under 30" and you don't have a lot of money ;)

- Dave

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