Question about Quantegy 456 Reel-To-Reel Recording Tape

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Capstan motors of Teac X7 rotate only manually (very stiff)

Reel to Reel Teac X7 has dual capstan motors. Worked fine several months ago. After lack of use, the capstan motors would not move the tape on playback. After rotating them manually to test for gumminess now they rotate only when substantial torque is manually applied, not by their own power. They rotate together (drive belt still connected, maybe?). I tried a drop of oil, no help. The service manual gives no clue how to take the machine apart or what may be wrong. Is there a book or some source of information which can help? Can the motors be lubricated? Is that the problem? Or do the motors have to be replaced? Are they available? Should I take it to a repair facility?

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  • Anonymous May 23, 2009

    My problem was not stiffness per se but no drive power getting to the capstans.  It turns out my drive belt had lost all elasticity.  I assume your drive belt is the same vintage as mine.  (Note that my X-7 was always maintained in a climate controlled area.)


    I removed the top (big mistake) which enabled me to see the belt and determine the problem source.  In the process I have messed up my automatic shutoff controls.


    Then I  found website www.obsoletemedia.com/tapedecks/x7rbelt/replace belt.htm.  This explains how to get into the machine without removing the top and replace the drive belt.  It also gives a source for new belts!!  Now the recorder works fine except for automatic shutoff.  Hooray (almost)

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Allied electronics still has these small motors. They probably won't have the same part numbers though. You will need the printed information from the motor as well as accurate dimensions for an accurate comparison.
Good Luck.

Posted on Feb 20, 2009

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