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Philips 34cm tv turned itself off.

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Discussion in 'Electronic Repair' started by whitebridge, Apr 8, 2007.

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  1. Apr 8, 2007 #1
    whitebridge

    whitebridge Guest

    Looking for Philips KR3684 34cm tv (circa 1980's) service manual, especially now it switched itself off (fuse OK, degausser sounds like it comes on, +300vdc present on filter cap, standby light off).

    Anyone know where I can source old Philips' tv schematics, even just it's startup circuit?
     
  2. Apr 9, 2007 #2
    Franc Zabkar

    Franc Zabkar Guest

    Without knowing anything about your particular set, I'd look for an
    open circuit startup resistor (~300K) connecting your PWM controller
    IC, or the base/gate of your chopper transistor, to the +300vdc
    supply.

    - Franc Zabkar
     
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