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RCA 52" TV CTC 178 pin trouble.

Discussion in 'Electronic Repair' started by Dani, Nov 7, 2007.

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  1. Dani

    Dani Guest

    M # P52755BA Ch # CTC178L2B, pix not quite wide enough, & slightly
    keystoned, found
    a bad connection @ CR401 in pincushion circuit, replaced it, found
    Q801 leaky (IRF730), replaced it, R801 is burnt, but ok C4402 is ok
    (0.94 uf @ 250 volt.), I think U4801 is bad.
    It's an LM311N. R4307 in the 26 volt line gets hot, & is dropping
    about 9 volts across it.
    Have any repair tips, on this unit? Dani.
     
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