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returns the m920 to normal stereo operation, as in-
dicated by the brackets changing back to the current
output level numbers.
UP/DOWN (VOLUME UP AND DOWN/ MENU NAV)
In
normal operation pressing the up or down buttons
will change the selected m920 output level respec-
tively in 0.5dB steps. Also, pressing the UP or DOWN
buttons while the selected output is muted will
unmute the output. NOTE: Pushing and holding the
UP / DOWN buttons results in continuous volume
changes. The longer a button is held the quicker the
volume level changes.
If the setup menu is active the UP and DOWN but-
tons are used to scroll through the available setup
menu items and parameters – just like rotating the
encoder knob on the m920.
Fixed DAC Output Configuration
When the m920 is functioning as a standalone dig-
ital-to-analog converter, the unbalanced line output
of the (L1) can be configured as a fixed DAC output.
In this configuration, the selected DAC source is
output on the L1 connector without passing through
the attenuator circuitry. This provides the purest
signal path for the most critical DAC applications and
prevents accidental changes in volume, balance, etc.
Caution should be taken when using this operating
mode as full amplitude signals will be present on
the L1 output.
When configured for fixed DAC output mode the
m920 will disable the volume control selection of the
L1 output as well as the line output mode selection
in the setup menu. The headphone and balanced
line output (L2) will function normally.
To configure the m920 for fixed DAC operations do
the following:
1. Unplug the AC power cord from the rear of the
m920
2. With a #2 Phillips screw driver remove the 8
mounting screws from the top cover.
3. Remove the lid and find the Fixed DAC Output
jumpers J10, J11, and J12.
4. Referring to the diagram below, move the
jumpers to the indicated position.
