My NAD C 541 cd player will not play any discs. I open it put the disc in and it tries to scan and then rejects the disc and opens on its' own. There is the word 'over' in red below the track number indicator and I can't get rid of this. Is this what is wrong and how do I fix it. Thanks Lindsay

The blue lines you mention should flash when trying to find
the 'Table of Contents' of your CD, even if a CD isn't loaded.
If when a CD is loaded and these lines flash for a while without
any CD info e.g track no. / disc length then it's more likely that a problem has occurred with the laser.
Various NAD CD players use the Sony KSS-213 Laser unit
and for some reason particularly with NAD CD players, they tend
to drift out of calibration over time so what i usually do when i come across this is very finely adjust the pot trim on the laser itself and testing a CD between adjustments.

Hi,

Seems that your player is looking for the index on your CD.
You can try to clean the laser carefully.
If your not familiar to do that, ask somebody.

Regards Gerard

Put in an ordinary audio CD and play to notice if the CD is detected. If yes the optical is working, if not there is no laser scanning and the possibility that the laser head can be defective.
Now certain cleaner disks will not be tracked to run for cleaning as it is not read. Hence it will reject. So it is ideal to clean manually the laser head eye using a cotton bud with gentle pressure on the lens eye.
If there is no result then watch if the CD spins or tries to spin. If so the board seems to work unless a test is taken on the main board but the possibility of a defective optical head can be the suspected fault.
If any of the above seems otherwise we must recheck with possibilities of a malfunction of the main processor board

HI.This will occur when the optical assembly becomes unstable. this ((Whole One Piece)), assembly incorporates the spin/load motor, optics housing /arm, tracking device and tracking rail. This is connected to the loading dock assembly. This 'NO Disc' or CD NOT PLAYABLE, code is the result of a failed or burned out lens, or misaligned loading mechanism. It is possible that you have a dirty lens cap. you can try using a cleaning disk in this case to confirm actual lens failure. if the cleaning doesn't restore normal reading capabilities, this will confirm my diagnosis.

You will need to have the optical assembly replaced in this case. once replaced, your unit will be able to read and track once more

BLOW IT OUT NWITH A AIR COMPRESSER

I have the same problem. When I insert a disk, my NAD T 550 DVD player displays 'No Disc'. It started with new disks while still reading older disks, but at some time it stopped recognizing any disk. Did you receive any suggestion yet or has anyone a suggestion?

hello marc you have a dirty laser,blocked sensor or even a misaligned condition try this clean the lens put a disc and turn it off with the tray inside wait about a minute and turn it on saludos

Does it have a failing drawer belt? My 522 was fixed after that.

Could be some dirt on laser lenses. Try to clean it.

What your husband is doing appears to be the right approach. Looks like the CD was not inserted properly and must've gone out of its seating and preveting the door from opening. Just pusing the CD back to position should take care of it.