Keeping both SHIFT and STOP buttons held down, turn the left knob to adjust the LCD’s
contrast. Still keeping both buttons down, turn the middle knob to turn the LCD Backlight Hi or
Lo. Turning the right knob adjusts the idle timeout duration. (Once this timeout is reached
without any user actions or host messages, the LED’s turn off and the LCD goes dim. Touching
any button or knob brings them back on.) You can also initiate a calibration of the touch sensors
and the fader by holding SHIFT and STOP and pressing the F4 button.
Selecting Native Mode
The AlphaTrack control panel (manager application) allows the user to select the driver’s mode
of operation as either an emulation or native mode. Alternatively, the application may force the
driver into native mode by sending the following system exclusive message. This ensures that
AlphaTrack will be in the proper mode without requiring any user action other than running the
application.
f0 00 01 40 20 01 00 f7 Force the AlphaTrack driver into native mode
Important: All the other messages defined in this document are only valid when the TranzPort
driver is set to native mode.
Device Inquiry
When in native mode, the AlphaTrack will respond to a MIDI Device Inquiry message.
f0 7e 00 06 01 f7 Inquiry sent to AlphaTrack
The AlphaTrack then responds with the following message:
f0 7e 00 06 02 00 01 40 20 00 01 00 30 31 30 30 f7
In this response, “00 01 40” is the Frontier Design Group manufacturer’s system exclusive ID
code. The next bytes, “20 00 01 00,” represent AlphaTrack (different that “00 00 01 00” for the
TranzPort, for example). The final four bytes before the end of sysex give the software revision
in ASCII (30 31 30 30 = “v01.00”). This value may change with software updates.
Buttons and LED’s
REW Button ............................................................Button Down: 90 5b 7f MIDI IN
Button Up: 90 5b 00 MIDI IN
FFWD Button ..........................................................Button Down: 90 5c 7f MIDI IN
Button Up: 90 5c 00 MIDI IN
STOP Button ...........................................................Button Down: 90 5d 7f MIDI IN
Button Up: 90 5d 00 MIDI IN
AlphaTrack Native Mode Version 1.0 Page 3 of 9
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