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Try other discs to see if its still working properly...most likely the recording on the disc is not burnt properly or there's something wrong with the disc, (ie, scratched or surface dirt etc) or the DVD player just can't read the disc...for example can it read the type of disc(does it read dvd+r or dvd-r, or both?--- if i remember rightly)..... I've had discs that have had bad recordings but can still be read if placed into tray a particular way around... randomly try different positions, also cleaning disc as you go...depending on how desperately you want it to read the disc...could also be bad disc batch... there could be many reasons...
there are mauy different dvd applications did you read what type if disc to use a lot of older units use dvd ram disks and can't use regular also try a dvd - disk and a dvd + disk the speed of the disc also plays a roll in weather it will work or not
4x 8x 16x 20x check the manufacture
If no disk is detected it means that the lens are dirty or defective.
If the lens cleaner disk, or using Qtips and alcohol did not work, then the lens pickup or the disk drive must be replaced.
this involves precision soldering and must be done by a technician.
When player says no disk, even if the disk inside, and you hear a whirring and clicking noise when you insert a disk, that means that the CD lens is dirty or defective, and the CD drive cannot read the initial CD track, and returns no disk.
Try first using a CD cleaner disk, if that does not work, then you will need to take the apart the unit to clean lens with isopropyil alcohol and cotton sticks.
See also the following websites on how to clean the lens, use a cleaner disk first:
I have seen this problem on several Yamada & Xoro brand DVD players. If you remove the lid after powering down with the disc tray closed and a disc in it you may well find the ribbon cable to the read head is rubbing on the disc. The ribbon cable is held to the base of the box by a sticky pad under a 45 degree bend in it and a piece of sticky tape !!!. Power up unit, open disk tray, power it down, retape cable to base securely with small strips of duct or gaffer tape (using tweezers helps) and hey presto it will work again. The cable rubbing slows the disk spin speed hence "data read error" unit assumes "bad/faulty/wrong type of disk". All that technology screwed up by using a cheap bit of tape in the factory assembly, amazing eh !.
I work for Coby technical support. Our customer service phone number is 1-800-727-3592.
the unit is showing "wrong 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
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