Hi all,

i have been working on that CD player fir a while:

what started out as a possible Datalink issue seems to be a different issue.

the player plays a couple of CDs perfectly fine and suddenly won’t read another disc - starts to spin, 

and stops without reading the TOC.

i have been through the service mode procedure x times, set the focus offset as per manual, checked the

laser current - all fine…..well, for a couple of discs that is.

it looks like the focus offset is breaking down after having played some CDs in a row.

All elco caps on the servo board have been replaced - the famous blue axial philips cap has been replaced with its Vishay replacement.

the laser supply voltage is present.

suspicious solder joints have been reflown - the two big golden Roederstein caps from the power supply on board 5 have also been replaced.

i wonder if one of the ICs on the servo board have a problem ??

the laser is not dead but my main suspect is the focus offset setting - something seem to break down ?!

at the end as usual: any inputs, suggestions or solutions are desperately needed here.

thank you 

ALF