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 27 (click to view)
Sub-Menu Navigation
Surround Enhances audio response when listening to stereo. Press to select Surround.
CH VOL OK VOL
Other adjust AI Sound Surround Speakers HDMI In Audio leveler On Off On Auto 0
CH
Press to select On or Off. � On : For stereo audio. � Off : For monaural audio.
Note: Fixed to Off when �Speakers� is set to Off.
Speakers This feature is used to turn TV speakers On or Off (see page 14, Amplifier Connection). Press to select Speakers.
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Other adjust AI Sound On Off On Auto 0 Surround Speakers HDMI In Audio leveler
VOL
OK CH
VOL
Press to select On or Off. � On : TV speakers operate normally. � Off : TV speakers off.
Note: AI Sound, Surround and Audio leveler are not available when selecting Off.
HDMI In When using HDMI (see page 12), this feature will let you switch Analog or and Digital Input. Press to select HDMI In.
CH
Other adjust AI Sound Surround Speakers HDMI In Audio leveler On Off On Auto 0
VOL
OK
VOL
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Press to select the mode. � Auto : Automatically selects Analog / Digital signal. � Digital : Digital Input only. � Analog : Analog Input only.
Audio leveler The audio leveler monitors the difference in audio levels between input signals from external equipment and minimizes the change in output volume that could occur when switching input signals. Press to select Audio leveler.
CH
Press to adjust Audio level.
VOL
VOL
OK
Other adjust AI Sound Surround Speakers HDMI In Audio leveler
On Off On Auto 0
CH
Note: Audio leveler is not available when �Speakers� is set to Off.
