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 you for your manual It has the basic things to and i use the Oszi for Longer Time.
THX
Text excerpt from page 6 (click to view)
Subwoofer Operation
A
BC
D
E
F
A POWER switch
Press this switch to turn the main power on and off.
C SIGNAL switch
Slide this switch to turn the subwoofer ON/AUTO/OFF. ON: The subwoofer is always ON. If it is difficult to detect a signal in AUTO, turn the SIGNAL switch to ON.
AUTO: When the input signal is detected, the subwoofer turns on. When no signal is detected for 15 to 20 minutes, the subwoofer turns off (standby). OFF: The equipment draws nominal non-operating power from the AC outlet with its POWER switch in the OFF position. Turns OFF the subwoofer.
B POWER indicator
When the power is on, the indicator lights green. When the power is in standby, the indicator lights red.
