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 7 (click to view)
Setting up your TV
Connecting and placing the woofer unit
Connect the supplied woofer connector to the woofer terminal on the back of the TV. If the woofer unit is not connected, you will not be able to enjoy the bass sound. � Connect so that the lever is raised.
Lever
Place the woofer unit within the range of the connection cable. It is recommended that the woofer unit be placed with the speaker facing forwards.
� Do not place the woofer unit on top of the TV. � When the TV is used on a TV stand or table, do not place the woofer unit underneath the TV. � When disconnecting the woofer connector, do so while pushing the lever.
Placing the woofer unit
The woofer unit can be used either standing up or lying down.
