Check the wires and sockets... the solder can be broken.   Login to view image

MMh, i exchanged now also the third transistor on the PCB3, changed also another blue capacitor and checked the sockets. I resoldered some, but they looked good . no change. The player starts and then stops after about 10 seconds. What makes me nuts - it needs to be on this PCB as with another one the player worked well. What else could it be? best regards 69er

Anything i could test or do additionaly?

Why does everone instantly starts te change capacitors when things are not working all of a sudden. With this cd player 99% of failing to read disk is a belt problem wich does not put the tray in the exact position. Change belt first...see what happens. Greetings from Holland

I have never seen a tray belt cause a read failure. If the belt fails, the tray will usually not open fully - or not open/close at all. If the tray doesn't close fully, the disc will not start to spin. The symptoms of the disc spinning for a few seconds, not reading and then stopping is a sign of a laser starved of power. Replacing the capacitors on the servo board will alone fix this in 95% of cases. The last 5% is usually dirt on the laser lens or a combination of the two. If the disc doesn't start spinning at all, there could be a problem with cracked solder joints (as shown above) or a badly seated ribbon cable for the disc drive. The laser itself rarely dies. I don't recall ever replacing a laser in one of these decks, and I've done many. Martin

69er, can you show us a photo of the board (front and backside)? Martin