Question about Sony PFM-42V1 42 in. HD-Ready Plasma Television

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Sony Tv PFM-42 V1 doesn't show any picture or tv menu

I have a plasma sony pfm-42 V1 , That turns on , the light changes green , But no picture , Or menu is shown , Does anyone know which board should i change ? thank you

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  • sherif807 Jan 06, 2009

    HI , Thank you so much for your answer, The tv has audio , But no picture at all .thank you

  • sherif807 Jan 08, 2009

    thank you so much for your help , I checked the service manual , I will try to see if i can buy the parts off of ebay . Thank you so much for your help

  • CASSADINE7 Jan 10, 2009

    I HAVE A SONY 42 INCH PLASMA TV , IT HAS GREAT SOUND BUT NO PICTURE THE SCREEN IS BLACK AND THE MENU WONT SHOW EATHER. WHAT CAN I DO?

  • psrivas Mar 28, 2009

    I have a sony plasma about 8 -9 years old.  We almost never used it and then we bought a dvd player and my son tried to hook it up.  The picture came up a for a few seconds and then something blew out.  What do you think happened.  can it be fixed and is it worth it to fix it up

  • Anonymous Apr 19, 2009

    any ideas????

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This is a common problem with plasma tvs You did not mention whether you could generate any sound like through your dvd player or something like that. Whether you have audio or not makes a difference on which board may be causing you the problem. Just because it does not have a picture for tv viewing does not mean it won't produce some type of sound through your av1 input. Try it and I'll try to be more specific.

Posted on Jan 06, 2009

  • roberto serbin Jan 07, 2009

    Without looking at the schematic or parts diagram I cannot give you part #s but I can tell you that in all the plasma tvs there are two boards called theY-sus(tainer) or Z-sus(tainer) boards that in less than technical terms are responsible for producing the picture on your screen. The two working together develop the pixels on your screen in whatever depths of colors they are processing. Regardless of the brand or model, most techs will first replace the Z board, but the best solution is to replace both. The reason for this is that the power supply supplies voltage to the Z-board directly, then a power cable goes from the Z-board to supply voltage to the Y-board. The technical reasoning goes that whatever caused the Z-board to fail weakened in some way components in the Y-board that will cause it to eventually fail. When you take the back cover off these boards will be one on the left side and the other on the right side with inputs going in to the plasma screen itself. They are clearly marked on the board itself and with some sort of white printed sticker. Let me say that either board can cause a no picture problem. I have never been the kind of technician to say replace both to cover your bases, but these problem cases are unique to plasma(s) and some Lcd(s). Each one of those boards are also identifiable by the fact that there is one IC that is heavily heat sunk to dissapate heat from the IC. That IC I can tell you from experience is the problem on the failing board, but is in a position that is not serviceable for the typical consumer. These IC's have a tendency to fail due to heat. The quiet cooling fans on your tv if there at all just do not cool them down enough. Many plasma(s) are failing after only a couple of years or so of service. This is one of the most common problems out there today and I hate to be the bearer of bad news but in the near future as well for those being sold as of this date. If you have problems getting a part # or place to buy either board let me know and I will help you. Good luck and may God bless you.

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