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 you for your manual It has the basic things to and i use the Oszi for Longer Time.
THX
Text excerpt from page 22 (click to view)
Replacing
1. Make sure all surface units are off and
cool before replacing surface units and reflector bowls.
2. Llns up openings in the reflector bowl with the surface unit receptacle and the element holcldown clip.
3. Hold the surface unit as level as possible
with the terminal just started into the receptacle. Push the surface unit terminal into the receptacle.
4. When terminal is pushed into the receptacle as far as it will go, push down the edge of the surface unit
opposite the receptacle. The element hold-down clip will keep the surface unit from moving around. NOTE: Reflector bowls reflect heat back to the utensils on the surface units. They also help catch spills. When they are kept clean, they reflect heat better and look new longer. If a reflector bowl gets discolored, some of your utensils may not be flat enough, or some may be too large for the surface unit. In either case, some of the heat that�s meant to go into or around a utensil goes down and heats the reflector bowl. This extra heat can discolor it.