Question about Pioneer PD-F906 100-Disc CD Changer

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Pioneer PD-F906 Laser carriage at spindle/extended

I have found this item and just trying to figure it out. A music CD is not detected. Sometimes it will spin the disk and most of the time it does not. I have observed that the positioner is right up aginst the spindle. I would have suspected it to be at the outside edge. Either the sensor is not seeing any information or there is no reverse drive on the positioner. I took it apart and moved it back, but I missed seeing it move forward. Any good ideas. Thank you for your support. rlcorty@yahoo.com

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It might be an older CD player that can't read computer-made discs, or it could be a disc incapability... If you sure that the system supports the disc's format.. And it won't play other discs... try to clean the CD lens. CD lens cleaning discs: Every CD, stereo equipment, department, discount, store - and even sidewalk venders - carries CD lens cleaning discs. Are they of any value? Can they cause damage? I generally don't consider CD lens cleaning discs to be of much value for preventive maintenance since they may just move the crud around. However, for pure non-greasy dust (no tobacco smoke and no cooking grease), they may not hurt and could even do a good enough job to put off a proper cleaning for a while longer. However, it's also possible they will ruin the lens. Consider that the worst thing to do to a precision optical surface is to wipe it with a dry cloth as this is likely to scratch the surface as it rubs the dust over it. To the lens, a speck of dust is like a boulder. Once the lens is scratched, replacement of the entire optical pickup is the only remedy. And, since there are absolutely no sorts of standards for these things, it is possible for a really poorly designed cleaning disc to damage the lens even if the dust itself is non-abrasive. In addition, if the cleaning disc doesn't look like a CD to the optical pickup or disc-in sensor, the lens it may not even spin. So, the drawer closes, the drawer opens, and NOTHING has been accomplished! (But at least no damage will be done.) As if this isn't enough, NEVER put one into a high-X CDROM (DVD player or DVDROM drive). The high speed rotation may cause the cleaning disc and/or player/drive to self destruct. And, don't try a cleaning disc on an automotive CD player that sucks in the disk - it will get stuck.

Posted on Dec 27, 2005

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Posted on Jan 02, 2017

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