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Intermittant Problem on SV2000 TV

Discussion in 'Electronic Repair' started by Arthur Shapiro, May 5, 2005.

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  1. First of all, I'm not a repair tech although I can deal with simple
    low v. circuitry and can wield a soldering station.

    The patient is a 20" Sv2000 of about 4 years vintage, used as a bedroom set.
    I don't have the model # handy, but am hoping what I'm describing is generic
    enough to get some suggestions.

    Over the last few months, the remote control has gotten quite intermittant -
    it will fail (no buttons do anything) for anywhere from a few minutes to a few
    hours. Then everything's back to normal for a while It isn't the remote or
    the batteries, as multiple remotes simultaneously all work or all fail.
    Recently the problem has gotten worse, in that the "outages" are longer and
    starting to exceed the time where things work correctly.

    Does this sort of failure ring an obvious bell with anyone? Is the logic that
    amplifies and decodes the received IR signal located on a single chip these
    days? It isn't even obvious to me where the signal is received - they've
    hidden the sensor quite well on the case; I haven't yet opened things up to
    investigate, but figured there's no harm in asking if this is a known failure
    mode on this brand of TV.

  2. Rono

    Rono Guest

    Likely, the IR (infa red) receiver has bad cold
    solder joints, or material, from maybe cleaning
    the crt screen. Rono.
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