Why is my Denon DN-X1500 showing a version up error in the screen every time i power up the unit

SOURCE: How to reset my Denon DN-V210 DVD Player to factory default?

Hi Jason,
I have just bought this unit and have been using the menu recently. The only ways i can see to do it would be to either, (as you say) plug it into a HDTV, or navigate the menu blind and hope for the best. 
If you press SETUP on your remote once to get to the menu setup screen and then push the RIGHT navigation button 3 times this should take you to the system setup screen. Then push the DOWN navigation button 4 times and then push ENTER. At this point it asks you for a 4 digit password to reset the unit which is a factory preset, 5555, so type that in. This should then reset the DVD player to factory settings.
Hope it helps,
Nick

SOURCE: TOC ERROR ON DENON DN-C615

Take this info with a grain of salt. I recently received one of these units with a TOC error, and after removing the drive assembly and reinstalling it, the problem went away. Before removal, I observed the motor spinning poorly and even backwards. Rather than pull the whole drive assembly, I would first eject the drive and remove the face from the tray. This is done by putting your thumbs on the tray and pulling up with your pointer fingers underneath the face. It should just snap off and snap back on the same way. Try playing a disc now, if it works try loosening the screws on the drive assembly and shifting the assembly towards the front of the unit, tighten the screws and put the face back on. You should be good to go. There are four screws holding the assembly down, the two in the back can only be accessed when the tray is in the open position. The front two are accessible through holes in the tray, and I don't recall if the tray has to be open or not, but that's easily observable. If it's still not working, there is a flat-flex cable running to the laser assembly. Pull and reseat this gently. Try to only manipulate the cable by the blue reinforcement tab. I hope this helps!

SOURCE: need an instruction manual for denon dn-1800f?

http://www.denondj.com/Assets/Dimages/Products/Manuals/cd709d3d980d4f2d8013fea6e875c68d.pdf?ts=062556

Girish Bhat

• 106 Answers
• Posted on Jan 24, 2010

SOURCE: Hi. My denon dn s3500 just says disc error when I

clean the lens...if it does not work replace the lens.

SOURCE: denon error 104

error 104 is unable to actuate focus. Which means the laser lens assembly is most likely defective