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 1 (click to view)
6"
MODEL PE588B-CN UNISPHEREO B
Slips out of swivel stand adapter, easily and quickly, for hand-held use
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Your selection of a Shure UNISPHERE Cardioid Microphone will contribute significantly to the professional quality of your performance. This ball-type microphone has a wire-mesh screen with a special filter which provides protection from wind, blast and "pop" (explosive breath sounds). This feature allows you to work as close to the microphone as you wish, either indoors or out-of-doors. Another feature of your unidirectional microphone is that it effectively controls feedback (that very annoying loudspeaker "squeal") because it picks up sound only from the front of the microphone. Unwanted audience noise or other noises occurring at the rear of the microphone are eliminated or suppressed. This allows you to work at significantly greater distances from your microphone than with non-directional (omnidirectional) microphones, without picking up objectionable background sound or feedback. (See inside for infornzation on how to use your Shure Microphone more effectively.)