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Panasonic VCR PV-4551 - ejects during recording

Discussion in 'Electronic Repair' started by Rich, Nov 17, 2003.

  1. Rich

    Rich Guest


    The VCR will eject during record, at random it seems. Never completes
    a 1 hr show. Just noticed that it will even eject, while not
    recording, but programmed for record. About 10 min after programming
    and turning the power off, the tape got ejected.

    Have not seen it eject during play. Still plays and records well,
    when it does.

    Model PV-4551. Made in 1995. Extremely light use, one show per month
    at most.

    Any hints? TIA

  2. Patch

    Patch Guest

    I would guess the safety record switch is dirty\bad. This is the switch
    that prevents accidental recording of a commercial tape. You need to pull
    the chassis to get to the switch. You might want to call your local repair
    shop & ask for an estimate.
  3. Hello Rich.

    try clean the "tape in" sensor that are in the middle of the tape perhaps it
    dirty. It could be that but maybe not.

    Best regards Thias Russell
  4. Rich

    Rich Guest

    Thanks Patch and Thias,

    This seemed to do the trick. The switch has two sets of contacts.
    The stationary blade in both was oxidized quite a bit (black where it
    should be been brass). Cleaned it, and it's working so far. Seems
    like a pretty bad choice of material for the switch.

    I'm not a repairman and would have never guessed it, since the
    ejection took place even when the tape was not moving. Perhaps, when
    you first insert the tape, the contact force penetrates the oxide just
    a bit, but with any vibration even of the house, it relaxes enough to
    break the circuit.


  5. Rich

    Rich Guest

    Thanks Patch,

    This is the switch that I was referring to in my other post. That's
    the one that was oxidized. Works now.

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