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 11 (click to view)
Do not dispose of the batteries with your household waste.
The Philips batteries supplied with your receiver�s remote do not contain heavy metals such as Mercury, Lead or Cadmium. Nevertheless, in many countries, exhausted batteries may not be disposed of with your household waste. Please enquire about the local regulations regarding the disposal of used batteries.