Chapter 5 - Description of Controls
Global
When the [GLOBAL] button is pressed, its LED will light. The [GLOBAL] button gives us access to the following settings which affect the entire instrument:
Page 1: Adjust Display Contrast: 1Ð10. This controls the contrast of the LCD display. The value range is 1Ð10, and the default is 5. Use the [VALUE/ENTER] knob to adjust the contrast to a comfortable setting.
ADJUST DISPLAY CONTRAST: 5
Page 2: Footswitch Range . This page has two values which determine the start and end point of the range of Programs that are selectable via the [ADVANCE] footswitch connector. Both values have a range of Preset 00Ñ99, User0 00Ñ99 and User1 00Ñ99. For more information, see the Footswitch section in Chapter 6.
FOOTSWITCH: Preset00 TO
Page 3: VU Meter Peak Hold. When set to ÒONÓ, the VU metersÕ peak LED indicators will remain lit for about a second.
VU METER PEAK HOLD: OFF
Page 4: Input Audio Source. Normally, this is set to ÒANALOG DATAÓ for using the analog input connectors on the rear panel. If using the Alesis Optical DIGITAL [IN] connector, however, this should be switched to ÒOPTICAL DATAÓ. When using the S/PDIF inputs, this parameter should be set to ÒS/PDIF DATAÓ. When the input is set for either ADAT or S/PDIF, the [DIG.IN] indicator will light. At the same time, the Sample Clock Source parameter (see below) is automatically switched to ÒOPTICALÓ or ÒS/PDIFÓ.
INPUT AUDIO SOURCE: ANALOG DATA
Page 5: Sample Clock Source. Normally, when using the analog inputs, this parameter is set to Internal, so that the Q20 uses its own ÒINTERNALÓ sample clock for processing effects in the digital domain. However, if you are recording digitally onto ADAT using the Q20Õs optical connectors, and you are using either an Alesis BRC or
SAMPLE CLOCK SOURCE:INTERNAL
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