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I have a techwood st67 3-disc changer that doesn't always recognize a cd much less actually read it... any ideas?

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The laser diodesI have a techwood st67 3-disc changer that doesn't - 2.gifwhich read the disc weaken over time and the lens can become dirty.Remove the case and you will see the 4mm dia. lens on the assembly riseup to read the disc when inserted. Eject the disc and lightly wipe thelens clean with a cellulose acetate Q tip or head cleaning cloth withjust a small amount of disc/optic/lens cleaner. Try playing the disc. Ifit will not read any discs then the laser diodes are to weak to read orthere is a malfunction in the digital signal processing board. Unless it is under warranty, you will need another unit.

Posted on Jul 19, 2009

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Yes, almost certainly a dirty laser, take the top off and twist a cotton bud on top of the little glass eye. even if you cannot see the dirt it will do the job most of the time,lasers do this with age also,so it could need replacing

Posted on Jul 19, 2009

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