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Reliable Panasonic PV-4760 VCR now blowing fuses

Discussion in 'Troubleshooting and Repair' started by vintage, Sep 19, 2012.

  1. vintage

    vintage

    1
    0
    Sep 19, 2012
    My usually reliable Panasonic PV-4760 VCR didn't turn on the other day. Lifted the cover and noted the 125V 1.6A fuse in the power supply unit had blown. I replaced the fuse twice more but each one blew as soon as the unit was plugged back in. Any ideas on the problem? I would hate to have to trash what has been an outstanding component. Its vintage but it complements all my other high tech electronics and I'd like to salvage it. Thanks.
     
  2. (*steve*)

    (*steve*) ¡sǝpodᴉʇuɐ ǝɥʇ ɹɐǝɥd Moderator

    25,174
    2,690
    Jan 21, 2010
    I would suspect either the mosfet or one of the rectifiers in the power supply has failed short circuit. If you're looking at them, also check for dead electrolytic capacitors.
     
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