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)
Adjusting
the oven temperature
control
Although your new ovens are properly adjusted to provide accurate temperatures, they may cook faster or slower than your old oven. If, after using the ovens for a period of time, you are not satisfied with the baking/ roasting results, you can change the temperature calibration by following these steps: 1. Make sure the Oven Temperature Control Knob is turned to the off position. Pull knob straight off and flip it over.
2. Loosen the locking screws inside the control knob. Note the position of the notches on the knob in relation to the skirt pointer. 3. To lower the temperature, hold knob skirt firmly and rotate the knob and notches in the direction of the LO arrow at the top of the skirt. Each notch equals about 10°F (5°C). 4. To raise the temperature, hold knob skirt firmly and rotate the knob and notches in the direction of the HI arrow at the top of the skirt. Each notch equals about 10°F (5°C). 5. Tighten the locking screws and replace the control knob.
