Question about Technics SL-PD687 5-Disc CD Changer

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Distorted sound when playing CD

Over time, I got intermittent distortion of sound on the CD player. Eventually, it was distorted all of the time. Sort of "jumpy" and "slippery". Everything else on the boombox works fine. The same audio CDs sound fine on other CD players.

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  • LehuaPahoa May 31, 2008

    I have cleaned it again and again, and have tried different brands, just to be sure. It didn't help.

  • LehuaPahoa Jun 01, 2008

    What is the optical connection and what do I need to do to use it?

  • benzsty Sep 14, 2008

    I have a Sony cd Player. I cleaned the lens and even adjusted the laser. The disc spin it plays and then all I hear is distortion.

  • twinspin2 Dec 30, 2008

    I have had the same problem too. I see that the laser pickup mechanism is available as a replacement part for about £40. Trouble is I cannot seem to disassemble the two parts of the mechanism. There must be a trick or something that is not obvious.

  • Anonymous Feb 07, 2009

    The only time i have sound is when I play cd's and it is distorted. I can still make out the song some what.


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I had exactly the same problem and ordered a new laser pickup costing about £40.00. A bit of a gamble and a little fiddly until you know how to do it. I also purchased a service manual to help me disassemble the mechanism. I am an electronics/radio engineer so I managed to do the job successfully but wouldn't recommend it to the average handyman without temperature controlled soldering iron desoldering pump and suitable tools including wriststrap and antistatic mat. The player now sounds better than it did ever with clear and brilliant audio. Total cost about £50.00 but worth it for me. If anyone feels that they can tackle this repair I can give further details on separating the servo board from the laser assembly.

Posted on Jan 08, 2009

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I have 2 of the CDP-CX400 machines that do the same as you are describing. The only solution I was able to discover, with amazing results, was to use the optical connection. The sound is far superior. My challenge now is trying to get the crossfade between the two players to work via optical.

Good Luck!


Posted on Jun 01, 2008

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Have you tried cleaning the cd lens ?insert a lens cleaning cd , follow the voice instructions and your cd player will be as good as new.HAPPY LISTENING.

Posted on May 31, 2008

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