sony hcd-d117

First check that the laser sled is totally free to move. 20 secs is about the time that a disc will play as a result of ' lens bend ' tracking, before the sled absolutely MUST move on ( about every 4 secs is how often it would LIKE to move on ).

If the sled does not move on, the tracking servo will lose lock. This may result in the disc spinning out of control, as spindle lock servo data is lost, which will often confuse the system control micro, locking out other functions such as drawer opening. Make sure that the lens is clean also.

Arfa