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Sony KV27TS27 et al.

Discussion in 'Electronic Repair' started by [email protected], Sep 27, 2005.

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    Was at Mom's today and whe still has one of these. It's on it's third
    CRT and sound module. With the description of the problem, turns red
    and shuts down I went and "wrapped the flyback", thus isolating it from
    an HK short.

    This is not the first time I've done, or encountered what I'm asking
    about. It seems that they designed in some sort of loose connection
    between the heater and the blue cathode. Why ? I know the blue is
    pushed alot harder in RPTVs, but this is not one of them.

    I've also seen this in other sets and some of the few monitors I've
    worked on. Why is this ?

    This is not a money thing, she is replacing the set when she moves into
    her new house in a few months, I'm really curious as to why they would
    couple the heater to the blue cathode.

    Strange: If you look at these things as they age, the blue gun is very
    rarely the problem.

    Any ideas ?


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