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CTC203: no luminance after power surge

Discussion in 'Electronic Repair' started by Ray Carlsen, Jul 9, 2005.

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  1. Ray Carlsen

    Ray Carlsen Guest

    This RCA CTC203AD4 chassis took a power surge that buldged the input
    filter cap and blew the fuse. Replacing both brought the set up again
    but there is no picture. I cranked up G2 and can make out a faint image
    with OSD. There is video on U12101 pin 42 but the CRT cathodes are up to
    180V, so no pix. User functions work but I can't change channels. The
    OSD shows the channel number change but the set stays on 3. I have no
    schematic and very little experience on these newer chassis. Am I SOL
    without chipper check? Seems more like a component failure, but what?
    What could a power surge do this far "inland". Thanks for any help!


    PS Sorry for the repost, but I forgot to mention my addy is
    spamblocked. To reply, email but leave out the zeros.
  2. Art

    Art Guest

    T1 chip, main procesor ic may have sustained a hit as probably the eprom.
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