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TV Repair

Discussion in 'Electronic Repair' started by Reactor, Jul 6, 2007.

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  1. Reactor

    Reactor Guest

    Hi all,

    I have a 20" or so RCA / Thompson TV that is 12 years old. It appears that
    the tuner is flaking out for some reason or another; the picture on pretty
    much all channels is snowy to unviewable. It has sentimental value so I'd
    like to get it working.

    If I put some downward pressure on the F-connecor on the tuner, it
    frequently will clear the picture up almost completely, for anywhere from a
    few seconds to a few days. Then it's back to a bad picture.

    I know the problem is not in the cable A) between the set and the wall and
    B) between the wall and my splitter in the basement, as I have moved the TV
    to a completely different location, used completely different cables, and
    the behavior is the same.

    My first thought is that the solder connections on the tuner, which appears
    to be about the size of a box of matches, need to be reflowed.

    My questions are:

    Do you agree that the reflowing of the solder joints *might* fix the
    problem, and

    Can I buy just the tuner module for this chassis, or do I need to by an
    entire main board?

    Where can I buy these parts on line?

    Thanks!!
     
  2. Meat Plow

    Meat Plow Guest

    It might fix it.
     
  3. Smitty Two

    Smitty Two Guest

    I'd give it a 99% chance.
     
  4. 99,9% it will....
    unsolder the tuner box, then open it and resolder everything that seems
    loosen
    inside (it's better not to resolder SMDs)
     
  5. Charlie East

    Charlie East Guest

    Is this a Chassis # ctc175 thru 187? If it is, do a google search on the
    chassis #/tuner grounds. Lot of info out there, the tuner is built in so
    cant replace it. not too hard to repair if you can solder pretty good
    Charlie
     
  6. Reactor

    Reactor Guest

    Wow, thanks for all the responses . . . . I'll get the soldering gun out
    this weekend and let you know if I get it working.

    BTW, just kidding - - I'll use a soldering iron. . . . ;)
     
  7. JANA

    JANA Guest

    You can try to re-solder the connections in the area where the feed goes in
    to the tuner.

    If you start re-soldering everything in the tuner, there is a chance you can
    de-tune it. The circuits in the tuner are very critical.

    You may be able to order a new module from any of the authorized parts
    distributor for RCA parts. If the set is more than about 5 years old, the
    tuner may not be available.

    --

    JANA
    _____


    "Reactor" <bruce.gettel-at-myactv.net> wrote in message
    Hi all,

    I have a 20" or so RCA / Thompson TV that is 12 years old. It appears that
    the tuner is flaking out for some reason or another; the picture on pretty
    much all channels is snowy to unviewable. It has sentimental value so I'd
    like to get it working.

    If I put some downward pressure on the F-connecor on the tuner, it
    frequently will clear the picture up almost completely, for anywhere from a
    few seconds to a few days. Then it's back to a bad picture.

    I know the problem is not in the cable A) between the set and the wall and
    B) between the wall and my splitter in the basement, as I have moved the TV
    to a completely different location, used completely different cables, and
    the behavior is the same.

    My first thought is that the solder connections on the tuner, which appears
    to be about the size of a box of matches, need to be reflowed.

    My questions are:

    Do you agree that the reflowing of the solder joints *might* fix the
    problem, and

    Can I buy just the tuner module for this chassis, or do I need to by an
    entire main board?

    Where can I buy these parts on line?

    Thanks!!
     
  8. .....

    ..... Guest

    jana wrote :
     
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