I have a Sharp MV-D2000 player that I hadn't used in some time, although it has been
connected to power. When I tried to use it just recently, it loaded the disc normally, spun up,
made the little seeking noises, spun down, and then ejected the disc. :( (I did try a number
of discs.) On just one occasion, just after power on, it did start to play, but the picture was
torn up badly.
I removed the cover and watched it power up and then loaded a disc. The carriage seems
to be moving ok, the disc spins up and then attempts to adjust speed, and the laser lens
advances and retracts (up/down). I dusted the lenses off with a soft brush, although they did not
appear to be dirty. No change in symptoms.
It will play audio CDs. I cleaned the spindle and the slipping "squeak" at startup, which
it had always had, went away. But the same symptoms persist. :(
> On Saturday, September 29, 2012 3:39:04 PM UTC-7, William Sommerwerck > wrote:
>> Check the disk. It might be cracked. (Yes, it's possible for one side to >> be
>> cracked and the other side okay.)
> I did try several discs, no change in symptoms. :(
If it plays audio discs, but not video ones, then the problem is almost certainly the laser. It's not always visible dust that causes the problem. The optical chamber below the lens is usually open to the air, and dust will settle in there on things like the critical angle mirror and pickup array. This severely compromises the performance of the laser. Sometimes, you can 'get it back' by carefully holding the lens to one side, and squirting some dry compressed air down the gap into the optical chamber.
Also, just because the lens didn't look dusty, that doesn't necessarily mean that it is optically clean. Many lasers that I see that are performing badly, have a sort of 'film' over the lens. This is only removed by gentle application of a cotton bud (Q-Tip) moistened in electronics grade IPA, and then the lens surface polished with a dry bud. This is very often the problem when the unit comes from a smoking household.