Question about Numark Industries Numark CDN 22 Mk4 Double DJ CD Player

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My numark cdn22 mk4 doesn't work at one side. the right to be specific. he can't read the disc and says al the time read. when i want to eject the cd the cd player opens and the cd is stil spinning in the plastic frame. when the cdplayer is trying to read the cd he makes a ticking sound and it doesn't stop. the point is that i do not have any guarantee any more.

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6ya6ya
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Posted on Jan 02, 2017

djromann
  • 158 Answers

SOURCE: my numark cd mix2

Hallo! This is caused by the laser fault. First unplug the cord, high voltage!!! Disassemble the device, look under the cd place you will see a little lense. Clean it VERY DELICATE with a piece of cottonwool with alcohol, can clean it twice with alcohol and then with a dry one. If doesn't help, then need to replace the laser reader system with a new one, it's that where the lense is placed, it must have on it an badge with the serial number, you can search it by that number/code.

Posted on May 18, 2011

  • 5603 Answers

SOURCE: use the cdn22 on weekends

Check for contamination on the disks that won't load. Also if you have things like cigarette smoke or "fog" machine that can cause the problem. The precision of the head of the CD players is amazing as the tracks are millionths of an inch apart and it doesn''t take much to cause a problem. If trying to load again the disk finally works, then it may not be registering on the hub quite right. Care in centering MAY help.

Posted on Mar 14, 2011

jdvillanueva
  • 2098 Answers

SOURCE: Hi, I purchased the Numark Twin

Hi kshanley,
If you have necessary tools and test instruments, know safety precaution in basic troubleshooting try the steps below to solve your problem.
Assuming that the disc is good.
1.Clean the lens. - Sometimes because of dust and any fine foreign objects the lens can't read any disc. If you have a CD Lens cleaner, play it to the affected area. If this is not available you may manually clean the optical lens. Open the cover and gently clean the eye of the lens by smooth,clean,soft cotton buds. Be careful while doing this, just a gentle stroke only.
2.Check the ribbon - Check the ribbon connected to the lens from the main board for scratch, damage. Once it has an open line then of course the lens can't read the disc. Also try to erase the contact by pencil eraser. If you've done the steps above and the symptoms still there then the next step requires you a little knowledge in soldering technique and reading the ohmmeter.
3.Check the motor - Check the motor that spin the disc with an ohmmeter. You can test it using the ohmmeter (x1) even it is connected on the lens assembly.Good motor - reading should be fairly high and it will spin. Bad motor- reading will drop to low resistance and will not spin.

Click this link for more info.



LINK1

LINK2


Hint : Most of my repaired unit the above parts are commonly caused of the problem.
If you confirmed that you have a defective motor then replace it with a new one. Before replacing the new motor you have to check the clearance of the disc holder with the old one. The clearance should be the same as the old because if not the lens will not read the disc if it is too far or too close.
If the above steps didn't cure the problem, high chance that your optical lens was faulty.

If you can't do the job yourself, I would advice you to look for a professional to troubleshoot the symptom.

Also, check if your unit is under warranty period, avail it because the manufacturer will fix it for free. Don't attempt to open the cover(it will void the warranty).



Hope I helped you.
Have a nice day!
Thanks for using Fixya.

Posted on May 03, 2011

djredskyy
  • 670 Answers

SOURCE: Numark CD DJ IN A

Was it working at first, and it just stopped? Try unhooking everything and just isolate the one cdj and plug it in see if it will eject. If its Brand New and this just started happening my sugguestion is to take it back to the store. you get what you pay for and numarks whole dj in a box line is the bottom line stuff.

Posted on Jun 15, 2011

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