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Tape Player Plays Tapes At Higher Speed

Discussion in 'Electronic Repair' started by curious, May 16, 2004.

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  1. curious

    curious Guest

    This is weird :
    motor runs faster and plays tapes comarable to playing a 33 1/2 speed record
    in 45 rpm mode
    panasonic RX-FS470 ( stereo radio tape recorder )
    Thanks in advance for any suggestions
     
  2. Jerry G.

    Jerry G. Guest

    You should always indicate the make and model number when asking a question!

    There is fault with the servo control amplifier that drives the capstan
    motor. In many of the lower end tape players this circuit is built in to the
    motor itself. In the higher end players, this circuit is a separate circuit
    board from the motor. Many of the higher end tape machines use a motor that
    has a tacho feedback. If the tacho section is defective, the motor would be
    changed to repair the problem.

    In the case where the servo amp is built in to the motor, a new motor is
    installed to service the machine. The other type are able to be serviced by
    any knowledable technician.

    --

    Jerry G.
    =====

    This is weird :
    motor runs faster and plays tapes comarable to playing a 33 1/2 speed record
    in 45 rpm mode
    panasonic RX-FS470 ( stereo radio tape recorder )
    Thanks in advance for any suggestions
     
  3. Art

    Art Guest

    If the unit has mechanical speed selection mechanism, as a whole lot of late
    60 machines, you may have a bent bracket or even sloppy springs and latching
    mechanisms. May take a bit of dilignet investigation to determine if the
    motor is servo or if you have some mechanical alignment problem.
     
  4. Maybe a bad motor, or pinch roller not engaging. Or there could be tape
    wrapped around the capstan from a previous tape-eating.

    Mark Z.
     
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