Been servicing for 22 yrs. , depends on model but most likely dirty lens as stated , use a moistened q-tip with pure water 1st. , then a moistened q-tip with isopropyl alcohol , 2nd. most common is the spindle motor , try LIGHT machine oil in a small hypo to the shaft (under the hub that cd rides , look for getting under a very small plastic washer that is sometimes present ). If you've adjusted those pots. prev. mentioned ....good luck , they set your vert. and horiz. bias coils in the laser block to focus and track the disc as well as the free run freq. reference to control the disc speed from 500-200 rpm from out to in on disc and must be set very accurately to spec on a freq. counter , usually after bridging certain pins on plug to set service mode . Do not remove the spindle hub as the distance to objective lens of laser is critical to focus , just like playing with the pots. Regards , Richard .
CD player plays some CDs, not others.
I need a little advice here. My Denon player (8 years old) will play most CDs just fine, but now and then certain CDs, which played just fine before, will no longer play. The display reads Track 01, and that is all. I can skip to track 02 but it still will not play. If I put in another CD, it will play. Then if I go back to the other CD, it will not read the CD. These are CDs that will play in my Sony Walkman, but for some reason my Denon is not able to read them anymore. They are in good shape, clean, and had played in the past. Is the laser shot?? Need a new player?? ALong those lines, what quality can I get in the $500-$600 range, single play or changer. I like Denon, but will try any other recommended to me. Thanks in advance. Al on Cape Cod