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 14 (click to view)
2. Push the appliance into place. The plug socket necessary for connection of the appliance to the electricity supply should be positioned, so that the plug is not placed in the recess. 3. To adjust the height proceed as follows: - Loosen or tighten the two front feet. - The rear feet are adjusted by turning the screw in the front kick plate to the left or right.
N.B. The joint cover (B) is to be assembled after having installed the appliance in the recess.
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4. If necessary, pads are supplied for the rear feet to make sliding the appliance in and out of the recess easier. To fit the pads, press them onto the rear feet. If required, the dimensions of these pads can be reduced by breaking them where marked.
5. Screw appliance into place and retain the cabinet with screws through the securing brackets into the worktop or adjacent woodwork as necessary.