Operation Settings
7
Function Setting procedure
A. USB upgrade settings
C. Filter selection
(valid only in the operating
system)
1. Press the MUTE button once, the indicator light indicates
that it enters the setting mode.
2. switch the OPT button momentarily (within 3s), then press
the OPT button again to switch the mode.
NOS indicator on = slow filter, NOS indicator off = fast filter.
3. Wait for 10 seconds.
4. 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 once, the indicator will light up to
indicate entering the setting mode.
3. Momentarily toggle the I2S button (within 3s), 1X, 2X, 4X
will turn on/off in a fixed pattern by repeatedly toggling to
select the matching pattern (indicates binary 000-111).
4. Wait 10 seconds.
5. DAC returns to its original state.
1. Press the USB button , the indicator light is on.
2. Press the STANDBY button , the indicator light is on to
indicate entering the standby mode.
3. Press the PHASE button to enter the software upgrade mode.