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TV fault

Discussion in 'Hobby Electronics' started by Alan, Nov 30, 2005.

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  1. Alan

    Alan Guest

    Gday Guys,
    I have a 4yr old Philips 76cm TV which is turning off as soon as the
    picture appears on the screen.
    The standby LED then flashes twice a second. Is that indicating a fault in
    a certain area ?
    I suspect it is the FBT, but I'm hesitant to buy one incase it isn't.
    Does anyone know of a test I can do to check the FBT ?
    I have no diagram either. I will appreciate any info. Thanks, Alan *
     
  2. crazy frog

    crazy frog Guest

    check the fbt transistor take it out and
    connect a 60 to 100w bulb to the power supply
    output or the collector of the fbt transistor on the board
    and grownd to test the power supply , if ok there
    should be 110-130volts at the bulb.
    then check fbt transformer and zener diodes
    if any and fbt transistor.

    do not putt youre meter on that point
    when fbt is working, it will damage youre
    meter.
     
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