DVD stopped playing all DVDs

this guy tells you all you want to know about them
Why the Cyberhome CH DVD 300 DVD Player is AWESOME

hi,
Its only a DVD player. it can play DVDs and CDs. There is no other input in this DVD which will convert the analoge to digital. You can't use this DVD player to make your tv a digital one. yha its true that you can watch DVDs and CDs through you tv.
OK

they are stop, eject, play ,ff, rr, pause, and power.

Most likely the DVD laser lens is dirty. Unplug the CH-DVD 300 from the wall outlet, wait 5 minutes, then remove the top cover. Next, remove the rectangular metal plate which covers the area where the CD or DVD disc would be when in the player's tray. Underneath the rectangular plate you should see two small lenses. Gently clean these lenses using ear swabs moistened with isopropyl alcohol. Reassemble the CH-DVD 300 in the reverse order that you disassembled it, plug it back into power, and now it should read your DVD discs just fine.

Check your dvd settings, read the manual that came with it. Or you can just pump up the brightness on the tv when watching movies.

Anyways, hope this helps.

I feel for you because I also have the same unit and have been frustrated in the past when I tried different dvd's to play. The conclusion that I have come to is that I only use my cyberhome player to play rented dvd's

I had same problem, I resolved by this way..
After opening cover , I found one ribbon wire was not moving freely,(That wire is connecting Lens), After stopping DVD, by hand I have done it free (for easy moving), After that it started working properly.

~Sudhakar
Pune-India

Chech the laser lens rails maybe got dirt clean it take off the grease they got.

Laser got weak. buy a new one

Goto the following site: http://www.drx9000repair.netfirms.com/#Cyberhome%20CH%20300 You more than likely have a bad power supply. The caps in the output circuit are pretty crappy and are well known for failure. Good luck! Art