Operation Settings
8
Function Setting procedure
A. USB upgrade settings
C. Filter Selection
(valid only in the operating
system)
1. Press the MUTE button and the indicator lights up to indicate
entry into setup mode.
2. momentarily toggle the OPT button (within 3s) to open the
filter setup, press the OPT button repeatedly and the filter will
toggle back and forth between the slow filter and the fast filter.
3. 1X indicator on = slow filter, 1X indicator off = fast filter.
4. Wait 10 seconds.
5. The DAC returns to its original state.
B. I2S Pinout
(Note: turn down the volume
before debugging the pins)
1. Select I2S Input .
2. Press the MUTE button, the indicator light indicates entering
the setting mode.
3. Momentarily switch I2S button (within 3s) to switch I2S
mode on, press I2S button repeatedly to select match mode,
1X, 2X, 4X will be turned on/off in fixed mode (indicates binary
000-111).
4. Wait 10 seconds.
5. DAC returns to its original state.
1. Select USB input, press the MUTE button, the indicator light
is on.
2. Press the USB button, the indicator light flashes, indicating
that it enters the software upgrade mode.
3. Power off and restart after the upgrade is completed.
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