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 10 (click to view)
Detachable face
Theft protection
This unit is equipped with a detachable face. A car radio without face is worthless for thieves. Protect your car radio and detach the face when you leave your car. It is very easy to attach and detach the detachable face. Note: Do not pull the detachable face straight out from the chassis, but detach it as illustrated below. Be sure not to drop the panel. Do not expose the detachable face to direct sunlight or other heat sources. Do not leave it in a humid place. Detaching the detachable face Press the REL button to release the control panel. Then pull it off gently as illustrated. If the unit was still in operation, it will turn off now. All current settings remain stored. If a cassette is inserted, it will be kept in the unit. The radio will turn on automatically when you attach the detachable face again. Attaching the detachable face Slide the panel (B) from the left to the guide of the chassis (A). Gently push the left side of the panel against the front of the chassis until it snaps into place.
Selecting the audio source
Use the SIX (source) button to select between radio, cassette and CD or Aux-in mode. The CD mode is not available unless a CD changer is connected. The Aux-in mode is available if a changer is not connected. (See DSC programming.) To select the operating mode: l Press SRC.
Affixing the detachable face
If you wish to fix the detachable face permanently to the chassis, screw down the enclosed bolt at the left hand side of the chassis into the hole (C), see Fig.
