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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#1
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Aiwa CXNMT90 CD Player Read Problems
Worth a try cleaning properly. Generic advice follows.
Have two cotton swabs ready -- one moistened but not dripping with Windex or similar window cleaner, the other dry. Some prefer alcohol (91% isopropyl, NOT rubbing alcohol). GENTLY clean the lens in a circular motion, rolling the swab as you go. Follow with the dry one to get any residue. DO NOT adjust anything without proper test equipment and a service manual. You'd only make things worse, maybe to the point of not playing at all. Mark Z. -- Please reply only to Group. I regret this is necessary. Viruses and spam have rendered my regular e-mail address useless. "Kiran Venkatesh" wrote in message om... I've been reading about problems with Aiwa CD players and I was hoping if anyone could offer any advice for my situation. I have an Aiwa CXNMT90 system whose CD player will attempt to read a CD where the head will spin the disc several times and eventually give up after a few spins and move on to the next CD in the 5 CD tray. Some folks have said that a certain cable is to blame or optical pickups might be the problem (http://groups.google.com/groups?q=ai...repair&hl=en&l r=&ie=UTF-8&group=sci.electronics.repair&selm=8o25bs%24a4b%2 41%40nnrp1.deja. com&rnum=5). I have tried to use a lens cleaner but when using it, the CD player treated it as any normal CD and was not able to use the CD to clean the lens. I have some basic electronic experience (soldering iron, breadboard, etc..) and have access to a fully fledged electronics lab with help and am wondering if something like this can be fixed without the need to go to a professional, or is it not worth it considering the probability of making a mistake or the fact that new systems come cheap. Thanks in advance, Kiran |
#2
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Aiwa CXNMT90 CD Player Read Problems
I have an Aiwa
CXNMT90 system whose CD player will attempt to read a CD where the head will spin the disc several times and eventually give up after a few spins and move on to the next CD in the 5 CD tray. The objective lens either collected dust that's intercepting the beam or the ribbon cable that connects the optical pickup to the control/process electronics has developed breaks (assuming that your particular Aiwa uses a ribbon cable instead of a bona-fide wiring harness). I have tried to use a lens cleaner but when using it, the CD player treated it as any normal CD and was not able to use the CD to clean the lens. I would advise never to use those CD lens cleaning discs. They are not very effective and can damage the optical pickup when used. I have some basic electronic experience (soldering iron, breadboard, etc..) and have access to a fully fledged electronics lab with help You may not need those resources for this particular repair. It's a matter of taking the cover off and getting to the optical pickup with a cotton swab lightly dampened with medical grade rubbing alcohol. Gently rub the lens clean with the alcohol-moistened swab. It may also help to oil the disc spindle motor sleeve bearing with a sparing amount of high quality low viscosity oil. - Reinhart |
#3
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Aiwa CXNMT90 CD Player Read Problems
Thanks for the tips. Reinhart, I'll try and open up the unit to
access the lens to give it a clean. I'll let ya'll know how it goes. Much appreciated! Good luck. - Reinhart |
#4
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Aiwa CXNMT90 CD Player Read Problems
I have recently experienced the same problem. I will attempt to do the
same. I hope it works. By the way has it worked for you Reinhart? Blade5156 |
#5
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Aiwa CXNMT90 CD Player Read Problems
Thanks for the info. It worked.
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