Question about Zenith P42W22B/H 42 in. Plasma Television

3 Answers

I have a Zenith P42W22b tv that a friend gave to me. When i plug the tv in and press the power button, you hear a click like a relay, and then it sounds like the tv is warming up, but the screen doesnt come on. the little green light by the power button comes on, but nothing on the screen. any suggestions?

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  • littlekxride Oct 02, 2010

    ok. would you happen to have a part number for that?

  • littlekxride Oct 02, 2010

    ok thankyou. and i have the back of the tv apart now. whats involved in installing this part?

  • littlekxride Oct 03, 2010

    ok. i have the back of the tv apart now and i am a marine mechanic so i am firmilar with eletronics, how extensive is the work?

  • littlekxride Oct 03, 2010

    ok. well i just replaced the main audio/video input board in my samsung 65" projection tv. so hopefully its not too much harder

  • littlekxride Oct 08, 2010

    replaced that board. still same problem

  • littlekxride Oct 10, 2010

    I have a Zenith P42W22b tv that a friend gave to me. When i plug the tv in and press the power button, you hear a click like a relay, and then it sounds like the tv is warming up, but the screen doesnt come on. the little green light by the power button comes on, but nothing on the screen. i replaced the power supply board and still the same problem. any ideas?

  • littlekxride Oct 10, 2010

    do you have a picture of the horizontal output transformer and flyback?

  • littlekxride Oct 10, 2010

    its not a bad click. its just when you hit the power button,. it makes a noise like its turning on. and i have the back of the tv off and on the one board. there are 3 red indicator lights that come on

  • littlekxride Oct 10, 2010

    and which boards are the y and z and control boards? do you have pictures

  • littlekxride Oct 13, 2010

    just one click. do you have part number for this board?

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3 Answers

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  • Master
  • 4,889 Answers

Is it multiple clicks that you hear or just one? I its just one then its normal and the source of the problem is the main audio/video board of your tv, which needs to be replaced.

Posted on Oct 10, 2010

  • eagle338
    eagle338 Oct 13, 2010

    It will be better if you can get me the part number of the board itself, The reason for this is the same model of the tv manufactured in different years will have different versions o the board. So just to make sure that you get exactly the same replacement.

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  • Master
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Hi

Thanks for using FixYa. High pitch/click sound is caused due to power supply. You'll need to open the back of the unit and check/test HOT (horizontal output transformer) and flyback, replace the part that has gone bad however, replacing both the parts at the same time is recommended. Also check the power supply board for any bad components.This is only recommended if you have electrical expertise which I think you have as it seems that you are repairing
two TVs at the same time :-). Please accept the solution if the issue is resolved or post a comment for further assistance.

Thanks
Rylee

Posted on Oct 10, 2010

  • Rylee Smith
    Rylee Smith Oct 10, 2010

    I apologize for the above post it was for projection TV (got confused in your two questions) and I just checked yours is Plasma. The click sound that you hear can be caused due to a bad component inside the unit. Have you checked the Y and Z along-with the control board for bulged/swollen capacitors.

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  • Master
  • 2,777 Answers

Do you get any sound? If not it is most likely a failed power supply board on the tv. Unfortunately this is a very difficult repair, and unless you are an electrician I would not recommend attempting it. You will need to contact a local TV repair person in your area. If you think it may still be under warranty please contact the manufacturer to file an RMA. If you happened to purchase the TV with a major credit card (not a debit card) there is a good chance it may still be under the free extended warranty most credit cards place on electronics. Please contact your credit card company to inquire if they do this, and they will be able to file the claim and get you a refund for the TV.

So sorry that I don't have better news but it is definitely a power issue internally.

Thanks
Tim

Posted on Oct 02, 2010

  • 2 more comments 
  • Tim Grayson
    Tim Grayson Oct 02, 2010

    Yes I do, it is this part here, part # 3501V00053B:

    http://www.partstore.com/Part/LG+Electro...

  • Tim Grayson
    Tim Grayson Oct 03, 2010

    It's quite extensive, to explain how to do it over text is nearly impossible. You will need to locate the board inside the TV that has that part # printed on it, it will be in white characters on the board.

    Trying to find a picture so I can show you where, but I don't think I have anything like that, and of course don't have this exact model TV here in the shop to look at to take pictures of....

    Tim

  • Tim Grayson
    Tim Grayson Oct 03, 2010

    Nope, if you did one in that other TV it's very similar... you will have it no problem!

    Tim

  • Tim Grayson
    Tim Grayson Oct 08, 2010

    Yikes you can send it back for a full refund... going to re-***** here and update you in a bit.



    Tim

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