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is my Sony RPTV aging?

Discussion in 'Displays' started by kumar, Jul 30, 2010.

  1. kumar

    kumar Well-Known Member

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    My lovely 57" Sony RPTV (7 years old) is throwing some convergence issue.

    For the last week or so I see blue separated by at least 1/2 to 1 inch. I can see that clearly when there is a white text (appears as blue and yellow).


    First I did auto flash and then entered into manual convergence mode to fix it.

    Though I could fix some + in the middle of the screen, towards the corners it was pretty bad.

    I opened up the front panel and fixed the three focus knobs and it almost got corrected. In the process somewhere I added little bit red to the overall picture. I was planning to call some one in to calibrate the TV.


    I ran it for about 20 hours in the last week or so and again since last night, convergence has gone bad.


    Any idea how I could fix this. If I have to call an engineer, I am willing to do that. It's just that I like the picture quality in this when properly calibrated, and wouldn't mind spending to fix this.


    If guided, I can enter into the service menu too, but I do not have any tools/hardware to do repairs.



    Thanks in advance.
     
  2. Gregg Loewen

    Gregg Loewen Video Standards Instructor, THX Ltd.
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    sounds like the # 1 crt problem....convergence ICs.


    Figure 250-300 for an in home repair. A calibrator is not a repair technician.
     
  3. kumar

    kumar Well-Known Member

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    Thanks Greg,


    I will call a local repair guy. I hope he does a good job. If anyone know of a good repair technician in the Raleigh-Durham area that will be great.


    After fixing this, I would like to get it calibrated as well. I think I can extract a lot of juice from this TV. I always liked this technology than some of the LCD and plasma TVs. Some day I have to face the inevitable and jump to another technology, but until then I think properly calibrated RPTVs are great.


    Thanks again.
     
  4. Chad Erickson

    Chad Erickson Well-Known Member

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    Thanks for the repair estimate Gregg.

    I started have the exact same issue with my 55 inch Mits (WS55807) a couple weeks back. I called one place and they quoted me $400 for the repair. I'll have to do some calling around to see if i can find a cheaper quote. If you would happen to have any contacts in the Minnesota-Twin Cities area, i would great appreciate it.


    Kumar - best of luck to you.
     
  5. Al.Anderson

    Al.Anderson Well-Known Member

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    I had this done for $300 on my Panny and it's been working great for the ~2 years since. I've also read a lot of blogs that says this is a fairly easy do-it-yourself job if you're electrically handy at all. (I'm not.) All you need is a soldering iron. There are a few sites that give you step-by-step instructions. The replacement chips are about $8 a piece (you usually need two).
     
  6. Chad Erickson

    Chad Erickson Well-Known Member

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    Good to know that i should be able to get this done for less than i was quoted by the first guy. I'll have to check around and get a couple more estimates.
     

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