User's Manual

15
Control Elements
9 Sync
The Sync button has various functions.
The first function is to display the synchronization status. If a source other than USB is
selected,thebuttonisillumintaedbluewhenthesourceissynchronizedtotheselected
clock. If USB is selected as source, the button will not light up, as USB cannot be synchro-
nizedtoanothersourceduetothesystem.Therefore,nosyncoptionsareavailablefor
USB. In addition, this button is also used to select the synchronisation source and refer-
ence levels.
Selection of the synchronization source:
YoucanswitchbetweendifferentsynchronizationsourcesbypressingtheSyncbutton.
Word, Source and all other inputs (except USB) are selectable.
TosynchronizetoanexternalWordClock(seepage11),“Word”mustbeselectedinthe
Syncsettingsofthedisplay.Noweveryselectedsource(exceptUSB)issynchronizedto
the external Word Clock.
If the sync source “Source” is selected and shown on the display, each source uses its
own sync code embedded in the signal.
Itispossibletosynchronizetoanyinputsource.BybrieflypressingtheSyncbuttonagain,
you can navigate through the input sources AES 1, AES 2, Coax 1, Coax 2, Opt 1 and Opt 2.
After that the selection continues from the beginning and starts again with “Word”.
If a sync source is not wired or does not provide a valid sync signal, the LED of the sync
button flashes and the display of the sample rate remains blank.
Mercurysupportssamplingratesfrom44.1kHzto768khz(PCM)andDirectStreamDigital
(DSD) to DSD4/DSD256.
Selection of reference levels:
To change into the mode to select different reference levels, press the Sync button for two
seconds. The display readout changes from “Sync” to “0dBfs” to indicate that the selec-
tion mode has been changed. On delivery of the device the reference level is calibrated
to 0dBfs = 18dbu. By pressing the Sync button again you can now switch through the
various reference levels.
10 Display
The display provides information about the sync source, the sample rate of the selected
source and the selected reference level.
Findfurtherinformationabouttheselectionofdifferentsynchronizationsourcesanddif-
ferent reference levels on this page under item 9.
11 Output
The level of the VAR OUT output can be controlled via this analog potentiometer. As vol-
ume control we use the ALPS RK27 “Big Blue” potentiometer with nice feel and excellent
channel synchronisation. This means that not only the auditory but also the haptic experi-
ence is at the highest level when adjusting the volume.