Hi Cristian,
Thanks for your reply and kind words.
Just a short introduction: I am new on this forum and finally found after long internet searce your answer which enabled me to solve this SC-901 problem. Again many thanks for that. Riding almost 18 years my much beloved Garnett red 1999 (ex-German) C70 T5. The best car I ever had and still lots of fun driving it. After 21 years approxx. 220k km. So many good years to follow (I hope).
The SC-901 worked perfectly for about 19 years and as far as I can judge it is, for its time, a master piece of enginering and still with excellent performance.
Somewhere and somehow in 2018 the CD player would not reject anymore. The cd tray was stuck and the display showed 'CD3-error''. From other internet sites I discovered the trick how to release the tray and the cd by turning the upper gear, cleaning the lense etc.. But since then the SC-901 would not insert the cd tray anymore. After inserting the tray, with or without cd, there is not sign or sound of the motor mechanism to do any attempt to insert the tray. By turning the upper gear I think having found the right position of the insert mechanism in which it would feed in and after just a slight turn of the gear it would slide out. But again somehow the little motormechanism seems dead. After having inserted the tray and pushing the eject button the display again shows the ÇD3 error' message. So, somehow the apparatus recognizes that something is wrong with the cd player. I hardly can imagine that the motormechanism has been burned or something Is there something in the mechanism that requires a reset somehow to bring it in the correct position or a trick to re-activate the motormechanism again?
Do you might have any clue or idea about why the cd motor mechanism seems dead or does not respond?
Just out of curiosity.
Thanks in advance and best regards,
Anton