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RCA F31700GGFX1 with CTC169JS5 Chasis

Discussion in 'Electronic Repair' started by redhog727, Feb 14, 2006.

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  1. redhog727

    redhog727 Guest

    I'm trying to repair the TV specified in the thread's title.
    It was working fine but about a week ago it started intermittentl
    shutting itself off and back on. The picture looked fine while it wa
    on, but after about a minute or two, the screen would shrink to a shor
    vertical line (meaning not exactly from top to bottom), it would sho
    some random patterns and then would go off. About two seconds later
    it'd come back on on its own.

    After turning it off, it will not come back on again. Can't even hea
    the relay trying to turn the set on.

    Fuse is OK.
    Tested C4403 with an In-Circuit DCR ESR CapAnalyzer and it tested a
    normal.
    Tested the CR-4118 in place with a DMM and seems OK as well.
    Nothing seems to be burnt (color or smell).

    I have some experience with audio equipment as well as PCs.
    I'm familiar with flyback operation and shock hazards.
    However, I don't have experience with TVs.

    Can someone please advise on what the problem might be?
    Thanks in advance.

    Redho
     
  2. CR4118 should always be changed if it's the original one...it will check
    good but break down under load.

    See this list of part that must be changed on these for reliable operation &
    is considered a general tune up for any CTC169 chassis......this is a good
    place to start.

    ---------------------------------------------------------------
    Text pasted from WinSTIPS 2.0
    http://www.ServiceSoftware.com
    ---------------------------------------------------------------

    RCA CTC169

    <Common Failure>



    When Working On Any Of The Ctc169 Chassis Replace The Following If They Are
    The Original Parts.
    Cr4118 (Ecg580 Or Equiv)
    C4102 2.2uf 100v
    C4104 15uf 63v
    C4108 47uf 50v ( Sometimes This Is A 39uf)

    ---------------------------------------------------------------



    --
    ==========================
    Jeff Stielau
    Shoreline Electronics Repair
    344 East Main Street
    Clinton,CT 06413
    860-399-1861
    860-664-3535 (fax)

    ========================
     
  3. redhog727

    redhog727 Guest

    Jeff and Stuart:

    Thank you both for your replies.
    Stuart's link has some helpful info, and some of it includes Jeff'
    recommendations.

    I'll let you know what the outcome is.

    Thanks again.

    Redho
     
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