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 40 (click to view)
Installation and connection instructions
3
The special spanner (E) and the caps (D) (2 each) and (G) (1 each) are supplied with it. 3. Remove the two screws (A) with the special spanner. 4. Remove the 4 screws (B). 5. Remove the transit bar (C). 6. Screw the 4 screws (B) back in for safe keeping. 7. Close the 2 large holes with the caps (D). Important! When fitting the plastic caps, press until they snap into the rear panel securely. 8. Remove the screw F, including the compression spring with the special spanner E. 9. Cover the hole with the cap G. Important! When fitting the plastic caps, press until they snap into the rear panel securely.
