Panasonic SL-PC363 5-disc changer dislikes certain CD's.
Ryan Erickson
Hello!
I have a CD player here (my sister's, if your curious) that has started
rejecting certain CD's (consistently the same CD's -- I don't know if it
ever accepted them), and it doesn't appear to read the index correctly, and
after trying to read the index, it spins up to 'supersonic' speeds, and only
turning it off will let it release the CD. These CD's are not scratched,
etc., and work fine in other CD and CD-ROM players.
I have read the FAQ, and cleaned the lens, and have watched and observed the
sled and pickup assembly, etc., and am wondering what to check next. My
biggest problem is that it only rejects certain discs, unrelated to playing
time, from what I can tell. It doesn't even read the index on them. Can
the limit switch be set too far out from the center of the disc, and not
allowing the IR to get the index data off the disc? Is there something
geometry-related with the discs?
Thanks!
Ryan Erickson
ry...@erudite.com
Mzacharias
I have much experience on CD's, but less on Panasonic types. There is usually
a sensor strip and associated feeler/wiper underneath. This detects pickup
position, and often needs cleaning. You could try looking at the HF pattern if
you have access to a 'scope -- maybe adjusting the focus bias or focus offset
would help. Don't recommend touching any other adjustments, though. A small
drop of light oil at the spindle motor shaft wouldn't hurt, either. There is a
chance it's the pickup or a spindle height issue if the HF pattern is
especially noisy and won't adjust out.
Mark Z.
Wichita, KS.
>Subject: Panasonic SL-PC363 5-disc changer dislikes certain CD's.
>From: "Ryan Erickson" <ry...@erudite.com>
>Date: Thu, Mar 19, 1998 02:54 EST
>Message-id: <3510c...@news3.uswest.net>
Jerry G.
The tracking alignment is most probably on the edge, or the laser is a bit
weak and is seeing the data just at the edge of specs. You would need the
alignment disk and a good scope with the service manual to align it back.
When some models get older, just a bit of a touchup fixes things...
--
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========== Message Seperator =============
Ryan Erickson wrote in message <3510c...@news3.uswest.net>...
hfxh...@gmail.com
>
> I have a CD player here (my sister's, if your curious) that has started
> rejecting certain CD's (consistently the same CD's -- I don't know if it
> ever accepted them), and it doesn't appear to read the index correctly, and
> after trying to read the index, it spins up to 'supersonic' speeds, and only
> turning it off will let it release the CD. These CD's are not scratched,
> etc., and work fine in other CD and CD-ROM players.
>
> I have read the FAQ, and cleaned the lens, and have watched and observed the
> sled and pickup assembly, etc., and am wondering what to check next. My
> biggest problem is that it only rejects certain discs, unrelated to playing
> time, from what I can tell. It doesn't even read the index on them. Can
> the limit switch be set too far out from the center of the disc, and not
> allowing the IR to get the index data off the disc? Is there something
> geometry-related with the discs?
>
> Thanks!
>
> Ryan Erickson
> ry...@erudite.com