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Vanity
PRO
–
User Manual v1.2
Page 17 of 19
Troubleshooting
The Vanity PRO implements a robust system of its own health monitoring. The status and
functionality of all major components is continuously monitored and reported in the System Status
screen. Should the user experience any non-standard or unexpected behaviour, diagnosing the
potential issue is easy and straight forward.
Before a fault is suspected, the user should make sure that the unit is correctly installed,
the power, HDMI and digital audio cables are properly connected and secured (BNC connectors).
Also, the HDMI source should be checked for correct operation and configuration. The Vanity PRO
might not be receiving the expected audio format, sampling frequency or any audio at all due to
incorrect configuration of the HDMI source
–
universal player, streamer, or computer. With
computers, the HDMI audio support is sometimes restricted or non-existent due to software
drivers. The Vanity PRO has been extensively tested with many different Blu-ray and universal
players with positive results. With Windows based PCs, getting the HDMI audio to work sometimes
required trial & error experiments with HDMI audio drivers and settings.
The table below contains a non-exhaustive list of some issues the user might experience,
mainly due to large variability in device configurations the Vanity PRO can be used with.
Issue Possible cause Solution
HDMI Error reported at start
up.
HDMI part has no power.
Check power connection for
the HDMI part and reboot
the unit.
Audio sampling frequency
indicator remains orange.
HDMI source signal is
unstable or outside of
frequency stability
specifications.
Use different HDMI signal
source.
No audio from downstream
DAC, or DAC unlocked.
SPDIF/AES cable not
connected or audio
sampling frequency too
high.
Check the connections. Set
DSD to PCM sampling
frequency to 88.2kHz
Occasional dropouts in
reproduced audio
DAC with ESS chip might be
too sensitive to frequency
adjustments. See
Note 1
.
Consult the user manual of
your DAC for DPLL
adjustment.
Note 1: The user might experience occasional dropouts in the audio signal with a DAC based on a ESS (Sabre) DAC chip.
The jitter attenuation function of this chip called DPLL has several settings and with certain combinations of the DAC
’
s
local oscillator and the DPLL setting the DAC chip may momentarily unlock when the Vanity PRO is adjusting its own audio
clock. Many ESS chip-based DACs have the DPLL settings exposed to the user and using a lower DPLL setting usually fixes
the problem.