Turns out this was not the manual i was looking for. The concertmate 670 keyboard i have is a "Realistic" model made for Radio Shack and none of the diagrams on the owners manual i received matches up. HOWEVER, I must say the service Owners Manual provides was fast and efficient by being available online. The manual was in good readable condition and easily downloaded.
Thank´s for your help, I already recived these manual from you
Text excerpt from page 18 (click to view)
Disc Operations
English
Checking the programme
1 Stop playback, then press à or ë
repeatedly.
2 Press � to exit.
OR
Press �� to start playback from the current programmed track Playing a disc without clearing the programme q Press one of the CD 1~5 buttons on the remote to select a disc for playback.
� After the selected disc has been played, the programme mode will resume.
Clearing the programme q Stop playback, then press � to clear the programme.
OR
Press the OPEN/CLOSE 0 button of the programmed disc tray.
� PROG disappears and "PROGRAM CLEARED" is displayed. Note: � The programme will be erased if the system is disconnected from the power supply.