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NSM Hit120 Jukebox circa 1970s. Fails to select and play.

Fails to select a play. Player tracks endlessly up and down. Have replaced Credit unit with a known serviceable unit. Have corrected dry solder connections on Supply board and all ribbon sockets and plugs.
Problem started with just failing occasionally. (Corrected by jiggling the two ribbon connections on the Supply board. Got progressively worse until all movement stopped. Had the Supply board and the credit unit checked by Tasmanian outfit. They OK'd the Supply and replaced the Credit unit with a repaired and tested unit. After installation I am now back to the endless tracking without selection. Any suggestions.

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This is DOCTOR FIX IT.
ARE YOU STILL HAVING JUKEBOX PROBLEMS
DID YOU LOOK FOR THE LAMP THAT READS THE RECORD SELECTION WHEN THE MECH SCANS . DO YOU UNDER STAND THIS QUESTION.???
SEYMOUR LEVITT
IN-HOME JUKEBOX REPAIR.
6362273300
ST LOUIS MO. MO

Posted on Jun 25, 2009

  • DOCTOR FIX Jun 25, 2009

    IT SOUNDS LIKE THE READOUT LAMP THAT COUNTS THE RECORDS HAS GOTTEN LOOSE
    (SCREW THAT HOLDS THE LAMP RIDGED, HAS LOOSEN, AND TAT IS A PROBLEM IN READING YOUR RECORD.



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Sounds like the encoder on the mech. It's the black gear on the lower right that rotates through the box with the wires soldered to it. (right next to the white gear that makes the whole unit go left to right.) It uses an optical sensor to count the holes in the wheel/gear. It's not registering either because of the wiring or more likely gunk inside the unit blocking the optical sensor.

Posted on Jan 01, 2009

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Ouch!
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