Make sure that the laser isn't stuck somewhere down its track, and refusing
to home. Quite common on players that are not used much, and that leave the
laser at the last played point when you take out the disc. Many portables do
this.

Also, make sure that the laser lens is not ' filmy '. It can get like it if
it is in a smoky atmosphere. Other than this, the " NO DISC " message is
very often an indication of a failed laser. Just for sport, try getting it
to play a CD. If it doesn't play it, suspect one of the problems above. If
it does play it, suspect a defective laser.

Arfa

The disk does not spin up.
i can see the laser moving up and downand back and forth a bit to try
to find track 0. but if the disk won't spin it cannot function.
.. I tried moving hte head to the outside track but it just moves back
and no disk spin.
The disk moves a bit, maybe a 1/4 revolution, then stops. If all else
fails i'll open it and look for a burnt resistor or somthing.