My Denon DVD-3910 will play DVDs just fine, but will not play CDs. When a CD is inserted, it ponders it for a minute, then acts exactly as if the CD was not in the unit: the display shows "0:00:00" and hitting "Play" puts up a hand icon (invalid command).
Any ideas? I believe the CD pickup is broken but the only part I found that I could buy is "traverse unit with laser and spinner motor" for $113+s/h.
Any other ideas?
Thats how some manufacturers sell there replacement parts as they come into the country assembled. it cost let to import but more for us. i once needed a spindle motor for a unit, no replacement except the manufacturer part. Had to buy entire laser assy and thats what they bare selling you too. If you already tryed to manualy clean the lens, look on the side of the laser pick-up. it might be made by sony or a popular manufacturer go by the number printed on the label on the side or bottom of the laser assy unit itself. Good Luck
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most sony CD and DVD players have a digital signature design to play CDs and DVDs that are original and licensed. some CDs or DVDs dont work since the player does not recognize or scan any digital signature embedded in the CD or a DVD. 2nd, lens problem causes most players not to read CDs nor DVDs. you can try to buy CD or DVD lens cleaners to have your lens cleaned.
If the lens is clean (clean with cotton swab and alcohol), then the optics are failing. DVDs require more power and accuracy to be read than CDs. The ability to read CDs but not DVDs is usually a good indication that the optics are starting to fail.
I have the Denon 2900 (about 4 years of use) and until recently, suffered from the same (growing) problem. CD's were very difficult to start/read. I recently found advice which I tried and was succesful with. It was manually cleaning the laserlens. I took away the outer housing by unscrewing all off the on top (6), side (4) and the back (2) bolts. After that I took out the top plate of the laserunit which took two very little screws taking out. Now you are looking at the cd-tray with the lens. Take a very soft and clean cloth and moisten it a little bit with clean water (be very carefull with the moistening, don't allow any waterdrop to come out of the cloth into the laserlens while cleaning! Carefully clean the lens and dry it with a dry part of the same cloth. Replace the top plate and the outer housing and the player will recognize the discs like it's new again. Good luck! Robert Jan, The Hague the Netherlands