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From: WDBURNS%MTUS5.BITNET (William D. Burns)
Newsgroups: sci.electronics
Subject: S L O W walkman playback, help!
Message-ID: <020591.153229WDBURNS%MTUS5.BITNET>
Date: 5 Feb 91 20:32:29 GMT
Sender: usenet@terminator.cc.umich.edu (usenet news)
Organization: U of Michigan, ITD Research Systems
Lines: 29

Greetings all,
   I have a Sony WM-AF64 Walkman that has seen a bad day.  I don't know how
this happened, but all of a sudden it's playing tapes at ~ 3/4 speed.  The LED
power indicator reads OK and exhibits this behavior while on batteries or
plugged in to the AC adaptor.
   I called a home-town "fix-it shop" and they would have to send it away
(i.e. BIG money to fix).  I can buy the tech manual for $30-40 but I was
wondering if someone out in net-land has any experience with this particular
model and/or is willing to send me a copy of the point-to-point schematic
diagram for this little guy.
   It seems to be a problem with the power supply to the DC motor but without
a diagram, I'm a little lost dealing with all those tiny, surface-mount
components.  Also, do these things you striaght DC motors or some sort of
servo motor?  I am studyiny electrical engineering so feel free to be as
technical as you wish.

   Any help would be apprecicated,

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