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 27 (click to view)
Deactivating the child safety device 1. If necessary, switch on the appliance using the On/Off button. 2. Press and hold the Baking/Roasting Programme button and the button at the same time, until SAFE disappears from the display. The child safety device is now deactivated and the appliance is again ready for use.
Button Beep
Switching off button beep 1. If necessary, switch off the appliance using the On/Off button. 2. Press and hold und buttons at the same time until a signal sounds (approx. 2 seconds). The button beep is now switched off.
Switching on button beep Press and hold und buttons at the same time until a signal sounds (approx. 2 seconds). The button beep is switched on again.
The oven's safety cut-out function
3
The oven automatically switches itself off if it is not switched off after a certain period of time or if the temperature is not adjusted. The last temperature to have been set flashes in the temperature display and a signal sounds. The oven switches itself off at a temperature of:
30 - 120 °C 120 - 200 °C 200 - 250 °C after after after 12,5 hours 8,5 hours 5,5 hours
In the display OFF appears. Operating the oven following the safety cut-out Switch the oven off completely. Switch on again and the oven can be operated as normal.