Question about Coby DVD-218 DVD Player

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Loading ... then no disk

Whenever a DVD disk MP3 cd is inserted, that's the message I get: Loading ..., then 'no disk. Tried cleaning, but this did not help. Tried unplugging and wait overnight then try again, this didn't work. Tried adjusting the variable resistors on the lens assembly, nothing! My other suspicion is the motor that spins the disk itself, it seems to be going a bit slower. Maybe there is circuit component(s) that broke down or the motor may be bad. If there is a solution or confirmation, please let me know.

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6 Suggested Answers

  • 10 Answers

SOURCE: wrong disk problem

Then lens may need a damp isopropyl alcohol qtip run over it a few times, use 90%. If that doesnt work then try a cd cleaning disk to put in the player. The cd or dvd may also be too scratched to read.

Posted on Feb 12, 2007

  • 1070 Answers

SOURCE: Devise reads no disc when disc is inserted

there is a flat white strip that is connected to the body of the lens replace it if that does not remedy the problem replace the lens.good luck

Posted on Apr 19, 2007


where would you buy the CHANGE STRIP WIRE TO THE LENCE

Posted on Jun 22, 2008

  • 899 Answers

SOURCE: disk rotating and a message "invalid disk"

you can try manually cleaning the laser lens ( gently wipe , do not press down hard , it is suspended by fine wires ) using a q-tip and a drop of that cleaning solution you got with the laser lens disc. ( fluff another q-tip a little ) then dry wipe it with another q-tip and try a disc.
you can look at the laser lens and see if you see the laser come on also to determine if that is working ( do not look directly into the laser ! )
if the laser works but it still does not read discs after cleaning it manually , then there is a problem with the focus coil on the laser or the signal board is bad

Posted on Jan 15, 2009

  • 563 Answers

SOURCE: disk rotating and a message "invalid disk"

I work for Coby technical support. Our customer service phone number is 1-800-727-3592.

If the unit is showing "invalid disk" on every disk that you try to play, unfortunately, the unit has developed a defect and needs to be replaced. Our warranty is 90 days from the date of purchase. If you've had the player longer than 90 days, I regret to inform you it is out of warranty.

If you feel this solution doesn't deserve a good rating, please let me know why so that I may better assist you. If there is anything more I can do to help, I will!

Posted on Feb 05, 2009

  • 187 Answers

SOURCE: Previous question: played cd (book) now will not dvd

Laserunit defect.

Posted on Jul 29, 2009

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Have you already tried to clean the laser pickup lens?

If not, then maybe you should try (there are youtube videos explaining it).

If the unit has been operating for a few years or so and if cleaning the lens doesn't solve anything, then the next most likely problem is the spindle motor which needs to be either cleaned (which is a bit difficult) or replaced (which is either less difficult than cleaning or entirely impossible). The other motor that can cause problems is the slide (laser pickup position) motor, but if the buildup of the disk mechanism makes it impossible to replace the motor(s), then unfortunately the only solution is to replace the entire disk mechanism.



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Hi Leah,

Good description and good job in narrowing down the problem. The lens is the remaining common denominator.

You need to get a CD/DVD lens cleaner. It should have a disk and a bottle of cleaning solution. They are available in the electronics dept of most chain stores.

A couple drops of cleaning solution on the feathery cleaning element attached to the disk, insert the disk into the machine and hit play. Takes just a couple seconds.

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If when you insert the disk you hear a whirring and clicking noise, CD spins, and does not read, then that is a problem with the DVD lens.

The DVD lens try to focus on the DVD track, by moving lens pickup and spinning the disk, but cannot read the tracks because the lens is dirty or defective.

Try first cleaning the lens with a DVD cleaner disk. And also if you can see the lens from the outside try blowing some canned air on it.

If this still does not help, then the lens pickup may be faulty, in this case you often replace the whole DVD drive unit inside the DVD player.

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The message indicates that the system failed to read the index portion of the disc. Try cleaning the lens using a cotton swab and alcohol. Try playing a music CD as well. If hte CD plays but the DVD continues to fail, you have a failing optics assembly that needs to be replaced. This is the most common symptom of failing optics. DVDs will fail while CDs will play.
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here is the link to the user manual, troubleshooting and venturer support contact details; Hope this helps, please post again if not :)

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