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.
Actually, I was looking for this information for 3 years!...now thanks to you, the manual is on my hands and of great help, cause I understand now where I was doing wrong connections and wires...excellent, I'll be back to you if in need, thank you.
Text excerpt from page 5 (click to view)
Using your cooktop
LEFT REAR CONTROL KNOB \ RIGHT REAR CONTROL KNOB
SIGNAL
LIGHT
LEFT FRONT CONTROL KNOB
RIGHT FRONT CONTROL KNOB
Using the Control Knobs
PUSH IN AND TURN
Signal light
One of the signal lights will glow when a surface unit is on. NOTE:
When a signal light goes off the sutiace unit will still be hot. Do not leave or store plastic, pans or other items on surface units. Control knobs must be pushed in before turning them to a setting.
They can be set anywhere HI and OFF. between
