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RCA ITC222 convergence power supply question

Discussion in 'Electronic Repair' started by Guest, May 15, 2006.

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  1. Guest

    Guest Guest

    Hi. Got an RCA D52W20B here. First off, to get it to run at all, I had to
    replace flyback, as it was shorted out internally. That made the tv run.
    However, the convergence power supply is not putting out. It has like 310
    volts DC going into it, but nothing coming out, whether connected up or not.
    I replaced TP630 power transistor as it was open. I can not find any other
    obvious bad parts on this board. Considered replacing the supply as it isn't
    very expensive, however there are none to be had according to our local RCA
    parts distributor, with no expected arrival date.

    This leaves me with fixing this one so I can get paid for the tv job.

    Anyone have any ideas, fixes or other suggestions about this supply?

    Cheers, Danny
     
  2. Jason D.

    Jason D. Guest

    Danny,

    you need service manual to throubleshoot this item. This is heavily
    engineered item that won't run till several conditions are met as part
    of safety circuits.

    Cheers, Wizard
     
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