Check the voltage and currrent factor of the battery charging circuit. Use a multimeter in voltage during charging and in series to the battery using a jumper to see the current to the battery. If the charge voltage currrent is good then the battery is faulty , if not the charging circuit must be checked.
It's not the disks its the the optical drive. Have you tried cleaning the lens with a DVD cleaning kit? Parts would cost more than the unit is worth to fix it.
your best bet is to try and thoroughly clean out the lens area. If you can purchase a can of air and use that from a 10 inch distance, Any closer could be damaging to your optical carriage most of the time it's just dust that accumulates.
Try a CD disc lens cleaner (can be found at Radio Shack, Wal Mart, Best Buy). Is it still under warranty? If not try your local TV repair shop for an estimate. But beware most shops do charge a diagnostic fee to look at the equipment. Note: Since these units can be found on the net for about $100 you may come out better with getting a new one.
(1)Power on
(2)On the remote control
(3)press SETUP button
(4)press right arrow key 3 times,
(the preference page will show up)
(5)press 9653
(6)Use the up and down key to select Region
(Select Region 0 for all regions)
(7)press SETUP again to save choices and exit
Plug in power plug from wall adapter on rear right of case. Power On/Off switch is on forward left side of case (forward of Brightness and Volume controls). This should be toward back of case to be off. If it is on. an LED on left front of case will be lit. This should be off for charging. When the battery is charging, an LED jus above the power jack will light up. When charging is complete, this LED will go off. The switch on the rear left side of the case is for internal/external video playing. It should be toward the front of the case for internal screen playing. (The FRONT of the case is the one that has the latch for opening the DVD cover.)
Sounds like the backlight isn't working, could be the flourescent tube or the inverter that powers it. At least those are the likely suspects in other LCD monitors that have similar problems.
I have the same model, exhibiting the same problems. I bought it in 2005, and have used it only on trips. I bought mine at Sam's club and I emailed them and Audiovox and have gotten no response. It says little of Sam's Club or of AudioVox!
I had same problem, took the back cover off. two scews that are right were the ribbon connects to the read head I believe are potentiometers adjusted with eyeglass screw driver a couple attempts it worked. I also disconnected the plug for external battery and left unpluged since I don't use battery