Question about Toshiba CZ27V51 27" TV

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TV Tuner failure after warm up

I'm a Systems Engineer and my father has a Toshiba CZ27V51 TV that started to exhibit intermittent tuner drop outs where the tuner drops the TV signal and goes static until you wiggle the coax cable a little. Once you wiggle it, the problem goes away for few but reoccurs. It seems to be a possible failure with the tuner control card and/or board. I opened up the unit but was unable to see any damage other than a loose cable on the tube itself which was reseated. I wanted to inquire if others have seen this issue and if Toshiba has any solutions towards salvaging a some what good and decent tv.

thanks
anthony

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  • anthony ryan Jan 21, 2008

    The f connector is attached to a relay (tin box) EL933L3 / 9K2678 which contains a F860 fuse. It is soldered down to the board pretty well so I think it might just be a fuse or something. I am gonna see if I can just order that box.

    Has anyone seen this type of problem with this tv?

  • 800mk2 Jun 20, 2008

    i put a new antenna but the tv is not giving a good picture i check the tunner and all the voltages arround it

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Check where the F connector is soldered inside the tuner circuitry, it may have a loose solder joint there. Also check the inside of the connector where the coax is attach, sometimes the inside conductors spreads and do not make good electrical contacts.
Good Luck.

Posted on Jan 21, 2008

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