Question about Mitsubishi Televison & Video

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We have a mitsubishi hd1080 tv rear projection unit. It will power on but then shuts off after a couple of seconds. We did the diagnostic test referenced on this site and got the 2,2 code. What is the solution?

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  • ljohio Aug 04, 2010

    The earlier advice was less than complete; I need more information.

    Model No. is 55411.

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  • Mitsubishi Master
  • 11,800 Answers

Error code 22 = short circuit protection. That means that the power source has detected a short on one of its output lines and has shut itself down for protection. To find the cause you must open the tv, find the output line that is shorted using an good AVOmeter then checking one by one the parts that are powered by that line, the failed part. To do that you need good electronics experience, otherwise you will not be able to interpret the indications of the meter.
If you don't have any then it's better to call a repairman.

Posted on Aug 04, 2010

  • 1 more comment 
  • ljohio Aug 05, 2010

    This is pretty non specific!! One response on your website said this was the easier error to fix. Can you provide more details?

  • Azrael SRL Aug 05, 2010

    You know, there are around 150 parts on that power source. To find out which has failed you must test the board, as i said. I can't help you more because i don't have the unit in my hand to test it myself, you have to do that. If after testing you still don't know what is wrong then post here the results of the tests and ask for more help. 


  • Azrael SRL Aug 05, 2010

    BTW it is one of the easiest failures to fix, a shorted component is much easier to find than a defective one.


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  • Master
  • 8,619 Answers

Hi


Thanks for using FixYa. Error code 2-2 means short protect which is either caused by bad convergence ICs and/or 2 Pico fuses (F9A05 and F9A04). You’ll need to open the back of the unit and replace the parts that have gone bad to resolve this issue.
Please do accept the solution if the issue is resolved or post a comment for further assistance.


Thanks
Rylee

Posted on Aug 04, 2010

  • 1 more comment 
  • Rylee Smith
    Rylee Smith Aug 04, 2010

    If it was not complete then you could have posted back for more assistance as stated earlier. Please check this picture to know the location of convergence ICs:






    Please do accept the solution if the issue is resolved or post a comment for further assistance.


    Thanks
    Rylee

  • ljohio Aug 05, 2010

    Sorry about that; don't really know how your system works. The diagram below does not match with our tv; just took the back off. Model is WS 55411.

  • Rylee Smith
    Rylee Smith Aug 05, 2010

    Thats fine, the diagram was just an example of convergence ICs location if yours does not have a black heat sink you can check this picture:


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