[TechAssist] Re: Pioneer CD, PD-M550, Won't play

  • From: Gary McCartney <gary@xxxxxxxxxxx>
  • To: techassist@xxxxxxxxxxxxx
  • Date: Mon, 18 Aug 2003 17:52:31 -0400

With Pioneer CD players, quite often the problem turns out to be an
intermittant ribbon cable between the laser pickup and the main
board.The Pioneer part number for all the models I have worked on is:
PNP1343. If you repair cd players, it's agood idea to keep one of these
in stock. You may want to double check that this is the correct part 
number for your model.



Gary McCartney

McCartney Electronics
Guelph Ontario Canada 
Est. 1984
email: gary (at) number63.ca








D Thunhurst wrote:
> 
> Hi,
> I do very little with CD Players so I'm not all that familiar.
> Usually if cleaning the lens doesn't take care of the problem, I give them
> back.  I can't do that this time.  It belongs to my daughter.  Of course, my
> daughter thinks I know all there is to know about electronics (ha, ha).
> The problem is it will spin and attempt to read the disc.  You can see the
> lens move back and forth and sometimes it will play then jump to track 2 or
> 3 or 6 or what ever then back to 1.  Or it might not play at all.  I cleaned
> the lens, cleaned and lubed the sled, tried applying voltage to the motors
> and also while doing that, reverse the polarity to the motors (this done of
> coarse with the motors disconnected from the board).   I took resistance
> readings on the 4 pots then I tried to rock them to see if this made any
> difference but no help so set them back to where they were.  I also tried
> freeze to see if it nay be heat related.  Also esr'd the caps and checked
> for bad joints.
> My daughter claims it was working fine and then it just started doing this.
> Can the pick-up go bad without a warning? or is there a better solution?
> Any help sure would be appreciated.
> Thanks,
> Daryl
> Daryl's TV
> 3310 Dyer St.
> El Paso, TX 79930
> 915-565-9184
> 915-564-1024 Fax
> dthunhurst@xxxxxxx
> http://dynacomp.freeyellow.com
> 
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-- 




Gary McCartney

McCartney Electronics
Guelph Ontario Canada 
Est. 1984
email: gary (at) number63.ca

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