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Article #1593

My CD player is running slow!

#1593
From: Matthew J Marjanovic
Date: Sat, 02 Jun 1990 18:23
31 lines
1806 bytes
Is it possible?

Someone gave me a supposedly broken tape player to look
  at, and while I was doing comparitive studies with CD recordings
  I noticed that my CD player was running just a little bit slow:
  	everything was just a bit flat, and a good tape player would
 	perceptibly overtake the CD in about ten seconds.


I haven't opened up my player yet to snoop around, but what are the
   chances of me being able to tweak it up to speed?

They player is a Garrard GCD-46 boombox deal, with the CD tray on top.

If there is a simple potentiometer in there labeled "Speed Adjust", what
  can I use besides my ear to calibrate the machine?  Are there any test
  signals that a player produces (or is a calibration disc necessary?)?
I do have access to good quality oscilliscopes and the like, if I need them.


Thanks in advance for anything that will save me from 
  taking this in, and for getting this fixed before I 
  leave for home on Wednesday....


____________________________________________________________________
Matt Marjanovic          | "He who has never envied the vegetable,
maddog@athena.mit.edu    |    has missed the human drama."
                         |                      -- E.M. Cioran
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!snorkelwacker!bloom-beacon!athena.mit.edu!maddog
From: maddog@athena.mit.edu (Matthew J Marjanovic)
Newsgroups: rec.audio,sci.electronics
Subject: My CD player is running slow!
Message-ID: <1990Jun2.182334.21396@athena.mit.edu>
Date: 2 Jun 90 18:23:34 GMT
Sender: news@athena.mit.edu (News system)
Reply-To: maddog@athena.mit.edu (Matthew J Marjanovic)
Organization: Massachusetts Institute of Technology
Lines: 31