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 9 (click to view)
Sostituzione del cavo di alimentazione
Nel caso di sostituzione del cavo è necessario usare solo cavi del tipo H05V2V2-F T90 adatti al carico e alla temperatura di esercizio. Inoltre, è necessario che il cavetto di terra giallo/verde sia più lungo di circa 2 cm. dei cavetti di fase e neutro (Fig. 11)- (Fig. 12). Dopo l�allacciamento provare gli elementi riscaldanti facendoli funzionare per circa 3 minuti.
