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SONY - PFM-500A2WE 16:9 42-inch Plasma fault 22-12

When switched on, the display starts to power up ie, the fans start running for about 5 secs and then it shuts down and displays the above error code. How do I know if the panel has failed or just the power supply failure? Please advise, thanks!

12 22 meanseither the Plasma Panel has failed or the Power Supply has failed. 12means "warning decrease of panel high voltage" and 22 means "warning ofdecrease of middle panel voltage".

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  • Anonymous Dec 07, 2008

    Same as above...

  • Rob 3 Mar 15, 2009

    Same problem 12/22 error code, but if it is the voltages which ones to look for and what readings should they give. thanks

  • Rob 3 Mar 15, 2009

    same as above 12/22 error code but what voltages to check if it is power related, VRS VA etc... 185VDC 65 VDC??? thanks

  • Anonymous Mar 30, 2009

    i'm having the same problem with my tv. the problem started just after a move. i believe it has something to do with that because it worked perfectly prior to the move.


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Hi I have found what goes wrong in this screen!
if you take it apart and email me i will send you a photo of the different things to look at for !
i have spare parts if any of your problems are not the same as mine!

Posted on Jun 11, 2010

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