The owner's manual/operating instructions that I purchased was the original factory document and it was in at least three and maybe more languages. I no longer have it because I sold the tape recorder and included the owner's manual/operating instructions and a service/repair manual that I bought on ebay for the new owner.
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.
Great price, Quick delivery, the document was very usefull A+++++++++++++++
Text excerpt from page 17 (click to view)
THE TOP OVEN
USES OF THE TOP OVEN
The top oven is the smaller of the two ovens. It is heated by elements in the top and bottom of the oven. It is designed for cooking on one level and for small quantities of food. It gives especially good results if used to cook fruit cakes, sweet or savoury flans or quiche. The top oven is also ideal for use as a warming compartment to warm dishes and keep food hot. temperature setting of 80CÂ° -100Â°C on the top oven control. Use a
SELECTING THE TOP OVEN
THINGS TO NOTE
1. The grill cannot be operated when the top oven is in use. If the grill and top oven controls are selected at the same time, only the top oven will operate. 2. The top oven neon indicator will glow until the oven has reached the desired temperature and then go out. It will turn ON and OFF periodically during cooking showing that the temperature is being maintained.
TO FIT THE TOP OVEN SHELF
The shelf should be fitted with the straight rods uppermost on the frame and the forms towards the back of the oven. If not fitted correctly the anti-tilt and safety stop mechanism will be affected.