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Where is the location of laser adjustment for Aiwa

Where is the location of laser pot for adjustment to a Aiwa CX-NR21EZ? - cd is failing to read

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Did you try cleaning the lens?

Also, motor brushes and commutators oxydize with many hours of performance and may need to be raplaced (the hard way is to dismantle the motors and clean them) - faulty motors can also disturb laser behaviour and, whether you believe it or not, sometimes a dirty main power switch will also affect focusing (all i'm saying here is that adjusting the pots might only improve the situation temporarily).

regards

3rq8 (Triarcuate)

Posted on Jul 26, 2009

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Posted on Jan 02, 2017

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The AIWA CX-ZR525 wont play cd's, it will only pick them up and leave them there with no music


Presuming that other sources work okay and the the cables are connected correctly.....Try a CD Lens cleaner.

If that doesn't work then it's time to open up the unit and manually clean the laser lens. If that still doesn't work then the laser might be dead. Replacement parts may be available. Whether or not you can do this as a DIY repair though is questionable. It depends on your skill.

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Open tray error and thensome.


Unreadable disc errors or open tray errors are commonly fixed by pot calibration or laser assembly replacement. Pot calibration is the cheaper of the two, and if it fails and burns out the laser, well, replacing the laser would be the next step anyway.

You shouldn't calibrate the pot without an ohms reader simply because you can burn out the laser, but you CAN wing it. I'd advise doing some searching on DVD Drive pot calibration for the Xbox 360, simply because I don't know which drive you have so I can't help identify anything for you.

I will say you have to disassemble it down until you see the motherboard, take out the DVD drive, open it up, and then calibrate the pot with a very small screwdriver. The location of the pot depends on your drive. If this fails, then buy a new laser assembly and replace it in the drive.

p.s. pot calibration is fancy terminology. There are basically 2 "screws" inside the drive, 1 pot is the DVD/games, and the other is CD. You'll want to very slightly tweak the DVD/games pot until it works, testing with each tweak. You barely need to adjust this "screw" for a significant change to happen. Also, always test with a DVD and then a game. It will read a DVD before a game.

Apr 09, 2010 | Microsoft Xbox 360 Console

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My xbox 360 BEN-Q drive has recently stopped working. I have tried EVERYTHING possible (POT Tweak, Cleaning the laser with alcohol,cleaning the entire xbox, making sure magnets are align). The laser still...


Replacing the laser should fix your system up just fine. You can find one at the following site for $16.95. The laser has two parts [obviously, since it has two POTs to adjust]. Most of the time, the DVD part will fail before the CD part. Replacing the laser should fix you up:

http://store.richspsxparts.com/xb360laforbe.html

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1 Answer

AIWA CD Problems


Sounds like the lasers need a POT (potentiometer) adjustment. Tools you will need are a multimeter with Ohms (preferably digital) either a #1 or #00 and #2 philips screwdriver. You will need access to the bottom of the laser. On the units I've worked on the POT faces the back of the unit. It will look like a philips head screw in a square metal casing. You should not need to completely remove the CD tray assembly but you can if you wish though I recommend removing the tray bezel Look for two legs on the side of the POT casing that go to the laser PCB. Measure the resistance across the two legs for an initial reading. On mine it was exactly 1kOhm. Now take the #1 or #00 philip screwdriver and adjust the screw to lower the resistance. POT screws are typically EXTREMELY sensitive so 1/16 of a turn can make a big difference. Start by lowering it by about 20-25%. So if the initial reading was 1kOhm aim for 750-800Ohms and test. You should use several disks for testing. If your unit is capable of CD-R/RW playback then have those available as they are generally more difficult to read. If you have playback gradually increase the resistance 5-10% until the disk is no longer readable or struggles to read. Now lower the resistance again 5-10% and retest. If all works well reassemble and enjoy. It is necessary NOT to lower the resistance too much as it will shorten the life of the laser and if too low could damage the disks. If you must go lower than 25-30% the laser is not worth salvaging. Typically 10-15% is all that is required. If you need more detail I recommend doing a search for 'xbox POT adjustment' as the procedure is essentially the same for all lasers and some xbox sites have good pictures so you can see what your doing before you dive in. Total repair time per unit will be 1/2 - 1hr, mostly spent in all the testing. Hope this helps. Good luck

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I read somewhere else that there was a class action settlement with aiwa (now expired) since many of these units had this problem. 

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This can be fixed by adjusting the POT on the rear side of the laser. My Aiwa had the same issue and there is an orange screw on the rear of the laser. Turn it about 1/16 - 1/8 turn COUNTER clockwise.

Please understand, this is a temporary fix, and will eventually ruin your laser mechanism completely. The company is out of business and the unit is 10 years old, so I didn't much care...perhaps I will run across a CD assembly I can replace it with, but this is a temporary fix for this issue.

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