"Arfa Daily" wrote in message
news:XIq2o.233667$_F1.83027@hurricane...


"Samuel M. Goldwasser" wrote in message
...
steventhomas42 writes:

On Jul 22, 9:50 pm, "Mark Zacharias"
wrote:
"Arfa Daily" wrote in message

news:gwL1o.42479$AS4.26491@hurricane...







"steventhomas42" wrote in message
...
Back in November 2001, I posted a message to this group about
myPD- M551and got the right answer on the first try:

http://groups.google.com/group/sci.e...rowse_thread/t...

I acquired and installed that ribbon cab;e and used the CD changer
for
a couple of more years, but it developed another quirk that I have
not
taken the time to research until now. When you insert the 6-disc
cartridge and press play, it pulls in each disc, rejects it without
playing anything and moves to the next disc until it fails all of
them.

I was under the impression that the new pickup cable I put in was
actually an improved cable over the original. Was I mistaken, and
will another cable repair the problem, or do I have a different
problem now?

Thanks,

Steve

There are two very common problems on all of the Pioneer players
from that
era. First is the spindle motor. When a disc has loaded, does it
spin ? If
not, does it start if you 'help' it ? Second problem on ones with
the deck
mounted on top of the mech upside down, is the laser lens having
fallen
out of its carrier. Try gently shaking the player or tipping it
around to
see if you can hear anything rolling about. The lens can be
re-attached,
but it's a bit of a delicate job, and there are a couple of pitfalls
to
look out for. If it turns out to be either of these problems, post
back,
and one of us should be able to guide you through the repair
process.
FWIW, I think it is unlikely that you would have a problem again
with the
flexiprint cable.

Arfa

Also, collapsed rubber insulators allow the disc to scrape while
playing.
Very common, and causes skipping.

Mark Z.- Hide quoted text -

- Show quoted text -

It's not skipping because it never plays anything. The discs stay in
for about 5 seconds before they are returned to the cartridge and the
next disc is pulled.

As another post mentioned, first check to see if the disc is rotating
at all. While a disc is in position, you can give it a nudge to see
if it is free to spin. If it is free to spin but doesn't could be
a bad spindle motor or lack of focus due to a dropped lens (or something
else).

A common symptom of the bad spindle motor though is that the disc turns
too slowly to be recognized, not that it doesn't spin at all.



I've found both to be about equally the case, Sam. When they run slowly,
the Pioneers almost always 'squeal', which is a dead giveaway of spindle
motor trouble. But I've also had lots with a dead spot, and which don't
spin at all until given a little 'help'. Once they've been got running,
some will come up to speed ok enough to read the TOC, but others will run
slowly, and do the squealing thing.

Arfa






I've seen bad pickups squeal (oscillate) before the spindle motor even
turns. Also, sometimes a spindle motor can set up a mechanical resonance
with the pickup and you can hear it whistle at a rate equal to the disc
rotation. You can even see the sine wave imposed on the focus and tracking
error waveforms. This seems to happen more on Sony's, though...

Mark Z.