IF cleaning the optical pickup did not help it is likely you have a bad optical pickup and only the entire unit may be available---Here is some information that may be helpful:
http://www.hardwaresecrets.com/article/Anatomy-of-an-Optical-Drive/179/7
SOURCE: Toshiba SD-2050 problem reading discs
If it reads only the first track, it sounds like a mechanical obstruction of the laser assembly (something is physically blocking it from travelling on its rails). If you are so inclined, try removing the deck lid andgently pushing the laser (in an area where there's nothing fragile) along its track to see if it frees up. It doesn't usually take much.
SOURCE: DVD player recorder won't read or play any disc
This just worked for me. Don't know how long it will last though. I found it on this webpage
http://forum.ecoustics.com/bbs/messages/15118/130292.html
To do a reset:
On the remote control press the SETUP button,
Press the right key on the remote 3 times,
The Preference page will show up,
Press the down arrow five time to highlight
"default", hit right arrow to highlight "reset"
Press enter to reset. Turn off/on machine, etc.
SOURCE: Panasonic DMR-E55 DVD Recorder won't read most dvd-r brands
Hello jancinn,
This might be due to a dirty pickup or scan laser head, or the optics as a whole might be going bad (both are common problems). A qualified TV repair person should be able to determine if the scan laser or pickup head are bad by doing a laser power test. If the optical devices are dirty it is just a simple matter of cleaning them with a DVD cleaning disk, however if the optics are bad, then replacing them is actually cost inefficient, and you may want to think about getting a new DVD player/recorder.
I hope this helps,
Thank you,
Shuttle83
SOURCE: durabrand 7 " dvd portable started not reading discs suddenly "no valid disk"
I had this exact same problem. I took the bottom cover off and took a look at the gears. It turns out I had a rubberband stuck in the gears and it was not letting them turn correctly so I took it out and it works perfectly now.
SOURCE: "NO READ" on Panasonic DMR-EZ27 DVD Recorder
good day 2 you,, ,, i have some little advice on you,,
just open the top cover of your player and check the RIBBON WIRE of the LENS/EYE part then clean theGOLD FINGER/LINES
and get some clean cotton buds and a lighter fluid 2 clean the lens,,,,,ok,,
PS. dont use cd cleaner fluids,,, that wont clean, , , , , ,just lighter fluid ok!!!
GODBLESS U
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