I have repaired many of these cd players working at an authorized Kenwood service center for over 17 years.
There are only 2 things you can do as the end user of this unit.
1. Try cleaning the disc's. If the cd has any fingerprints or scratches on the inner most part of the cd, the laser will not be able to read the TOC. It is the first thing the cd player tries to do and if that fails for any reason, the disc can not be played at all.
You can purchase a disc cleaning kit, or you can do what I do. I spray a small amount of windex on the data side of the disc and then clean it with a soft cloth like a bath towel or terry cloth. This works as good or better than the cleaning kits and is much cheaper.
If that does not work you can go to the next step.
2.. Clean the lens of the laser with a cd cleaning disc. They can be purchased at many stores that sell cd players and music cd's.
You put it in the player and let it run about 20 to 30 seconds and then you eject it.
If neither of these things help, you most likely have a bad laser pick up. You will need to take it to an authorized Kenwood service center and you can count on the repair being anywhere from $120 to $175. Depending on the rates and the mark-up of the laser pick up.
This is a very good car stereo, and is probably worth the repair cost, but it does have a 2 year warranty. It is not too old, so it may still be under warranty. If so, the repair is free for you.
I hope this helps you with this problem, and if so, a good rating is always appreciated.
Let me know if you have any other questions about it.
on May 08, 2019