Article View: sci.electronics
Article #9932S L O W walkman playback, help!
From: WDBURNSMTUS5.BITNET William D. B...
Date: Tue, 05 Feb 1991 20:32
Date: Tue, 05 Feb 1991 20:32
29 lines
2061 bytes
2061 bytes
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,
|\/\/\/| /____________________________________________________________/
| | /____________________________/ /
| (o)(o) /William D. Burns / InterNet: /
( _) / (906) 482-FIXX / WDBURNS@mtus5.cts.mtu.edu /
| ,___| /____________________________/ Bitnet: /
| / / Michigan Tech University WDBURNS%MTUS5.BITNET /
/ \ /____________________________________________________________/
/______\ (funny, one-liner here..)
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!uunet!samsung!umich!terminator!usenet 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