Question about Cambridge Audio 640C

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Radomly clips or skips

My 640C randomly clips or skips.  Not quite a skip and dosn't happen in the same place twice.  Happens on new CD's.  Ran Lense Cleaner disc and still happens.

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Re: Radomly clips or skips

I have exactly the same thing. I am on my second one too.
Mine is an australian model purchased in Sydney.

Posted on Dec 15, 2007

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If you have access to the lased head, gently wipe the lens with a stick with cotton moistened with isopropyl alcohol, or regular sanitary alcohol. Use circular movement. Then, gently shine the lens with dry cotton. DO NOT PRESS THE LENS !!!! If the issue persists, it's more complicated. You need to have access to the tiny trimmer below or near the laser head. Using a plastic screwdriver, rotate the trimmer clockwise about 2-3 degrees. Test playing. If track doesn't skip, hit the CD player's case with the finger, to check if track skips because of shock. If skips, rotate trimmer again 1-2 degr. Check again. If it doesn't work, try rotating counterclockwise. You need patience. Hope it is useful.

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I have a very similar type unit, a Nakamichi CDC-3 that had the same problem. I found this link....

I spent about two hours fixing mine. The sled mechanism was binding somehow, causing random skipping. The first 10 minutes was getting it apart and figuring what was wrong, the remainder was spent getting all those tiny parts back in the proper place.

Look up the exact symptom before going at it (probably long skips). Set aside a long slow lazy day with nothing to do. DO NOT drink too much coffee, you will be handling tiny parts that go in tedious locations, so you don't need caffeine jitters adding to your misery. Take your time and be careful. It's well worth it. Mine plays like a new one.

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