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 18 (click to view)
Sound Adjustment
Selecting the sound effect
Selecting the effect from the music menu
Press PRESET EQ or EQ +/�* (or MUSIC EQ, MOVIE EQ or GAME EQ on the unit) repeatedly to select the preset you desire.
Adjusting the sound
You can reinforce the bass and create a more powerful sound.
Press GROOVE.
Each time you press the button, the display changes cyclically as follows: GROOVE ON* t V-GROOVE ON* t GROOVE OFF
* The volume switches to power mode, the equalizer curve changes, and the �GROOVE� or �V GROOVE� lights up.
The preset name appears in the display. See the chart �Sound effect options�.
* for MHC-GX25 and MHC-RG220 (except for European and Russian models)
To cancel the sound effect
Press EFFECT ON/OFF on the unit or ON/ OFF*.
* for MHC-GX25 and MHC-RG220 (except for European and Russian models)
Using the sub woofer
(MHC-GX45 and MHC-RG440S only)
You can use the sound of the sub woofer to suit the sound source.
Press SUB WOOFER ON/OFF on the sub woofer.
Sound effect options
�SURR� appears if you select an effect with surround effects.
MUSIC EQ Effect
The indicator lights up while the sub woofer turns on. Press the button again to turn off the sub woofer.
Tip
ROCK POP
MOVIE EQ Effect
Standard music sources
You can use VOL +/� (or VOLUME control on the unit) to adjust the volume of the sub woofer linked to the front speakers.
MOVIE
Soundtracks and special listening situations
GAME EQ Effect
GAME
PlayStation 1, 2 and other video game music sources
Tip
You can also select �GROOVE�, �V GROOVE� or �EFFECT OFF� by pressing PRESET EQ (or EQ +/� for MHC-GX25 and MHC-RG220 (except for European and Russian models)) repeatedly.
