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 11 (click to view)
Cocción tradicional El calor proviene de arriba y de abajo, por lo tanto, espreferible utilizar las guÃas centrales. Si la cocción necesita más calor por la parte inferior o por arriba, utilizar las guÃas superiores o inferiores.
CONSEJOS PARA TRADICIONAL
Para la cocción de los dulces