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 12 (click to view)
Electrical Connection Diagram
For UK only: 230V...240V~
Sticking on the seal
� Clean the worktop in the area of the cut-out section. � Stick the one-sided self-adhesive sealing tape supplied all the way round the lower edge of the cooking surface along the outer edge of the glass ceramic panel. Do not stretch it. The cut ends should lie in the middle of one side. When you have cut it to length (add a few mm), press the two ends flush up against one another.