Question about Bose Audio Players & Recorders

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I have a Bose w/cd player. Have had no problem until recently. I was listening to cds and I inserted a cd that I had burned and it played. Then I inserted a store bought cd I have and the message on display was 'reading cd' and then it displayed 'cd not readable.' What is the problem?

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  • Julie Barrera May 21, 2011

    Thank you so much. How do I open the unit? Would it be in the Bose manual?.

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The optical head inside your player has a plastic lens on it. To adjust to the different types of disks that lens is put on a suspension that is dinamically adjustable.
If you get a Not Readable message then the signal the laser sensor from the optical head receives a reflected signal that is too low. This happens either because the lens is covered in dust and you must clean it or the suspension of the lens is not working anymore and the reflected signal is no longer focused so it's too weak. This is almost always caused by a failure of the controller of the optical unit.
To do a proper diagnostic and attempt of fixing it you must open the unit, access the lens and clean it thoroughly with a can of compressed air and a q-tip. Use this occasion to check its suspension - sometimes dirt seeps in and partially blocks the movement.
If after that you don't see a marked improvement then the optical unit has failed and it will have to be replaced. If this is the case i think that it will be cheaper in the end just to replace the entire player.

Posted on May 21, 2011

  • Azrael SRL May 21, 2011

    You just take out the securing screws and the top lid will slide out giving you direct access to the optical unit. But you should do it yourself only if the player is out of warranty - opening it yourself would void it.

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