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 10 (click to view)
Separate parts A, B, C, D as shown in the figure
A B
C D
PR266
Place guide (A) on the inside part of the furniture door, up and down as shown in the figure and mark the position of external holes. After having drilled holes, fix the guide with the screws supplied.
50mm
A
20 mm
PR166
Fix cover (C) on guide (A) until it clips into place.
A
C
PR33
Open the appliance door and the furniture door at 90°. Insert the small square (B) into guide (A). Put together the appliance door and the furniture door and mark the holes as indicated in the figure. Remove the squares and drill holes with ø 2 mm at 8 mm from the outer edge of the door. Place the small square on the guide again and fix it with the screws supplied.
