Question about Sony PFM-42X1 Plasma TV

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Hi, I have a Sony plasma PFM-42X1 and it fails to start. When you turn it on at the wall the panel ticks twice (like a switching power supply) Green light is on. After it finishes ticking the green light turns red and that is it. is this an power supply problem??or not . am also an technician. please let me know. thank you

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  • h_karso Oct 06, 2010

    hi sir, but you not sure the problem is the Y-sus board? when yes, where can l order an y-sus board

    can you please an address. thank you

  • h_karso Oct 06, 2010

    thank you very much.

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The light turns red to signal the fact that the power source goes in protected mode - its safety system has detected a short on one of its outputs. So yes, it could be a problem with the power source itself - some of its filtering capacitors have aged and are now drawing a lot of current thru themselves. But it's much more likely that the problem is somewhere else - in your case the most probable fault is the Y-sus board, since the fault appears when it's time to start the plasma panel.

Posted on Oct 06, 2010

  • Azrael SRL Oct 06, 2010

    Unless the tv can be tested , only god can be sure what board is defective. I'm not god so i can't be sure - i made an educated reasoning based on the behavior you described.



    A replacement board
    http://cgi.ebay.com/SONY-6871QYH033A-Y-S...

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