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    Gildo's Avatar
    Gildo Posts: 2, Reputation: 2
    New Member
    		  
    #1

    Mar 30, 2008, 09:20 AM
    Trouble with TV Panasonic
    I have a horizontal line in the center of my TV.
    Before, a little punch on the TV and all working OK.
    But now nothing to do, that horizontal line is always there.
    I know it's a vertical problem area.
    What to check please?

    Panasonic
    Model : PC-29XF10A
    Chassis : YAPEDP218


    Thanks!
    WallyHelps's Avatar
    WallyHelps Posts: 1,018, Reputation: 136
    Ultra Member
    		  
    #2

    Mar 30, 2008, 10:44 AM
    You may get some better advice from the others, but my first thought is that you've either got a short in the vertical deflection circuitry or the vertical output transistors have died. The short may be caused by an accumulation of dust, and punching the set would temporarily knock the dust loose. You might thoroughly blow out the inside with compressed air (will be a messy job, and don't do it when the wife is home) You might also have a bad connection, which a punch could temporarily fix.

    CAUTION: The inside of a TV is a very dangerous place. There are lethal voltages present!

    Be extremely careful, and good luck,
    WallyH
    Gildo's Avatar
    Gildo Posts: 2, Reputation: 2
    New Member
    		  
    #3

    Mar 31, 2008, 12:49 PM
    Hi!

    Found the problem.
    Re-soldered IC451 (vertical IC) and working fine.

    Thanks!
    biggsie's Avatar
    biggsie Posts: 1,267, Reputation: 125
    Ultra Member
    		  
    #4

    Mar 31, 2008, 12:55 PM
    Thank You for keeping us updated -- some leave you hanging??
    emerson26's Avatar
    emerson26 Posts: 1, Reputation: 1
    New Member
    		  
    #5

    Sep 16, 2009, 04:54 AM

    Meron po akong TV panasonic model no.PV-M1357W 120volts wla po siyang sound ill try n itest yung speaker OK nmn po sya ano kya problema nya??
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