Front Panel Displays - Benchmark DAC2 D Instruction Manual

Front Panel Displays

There are sixteen status indicator lights on
the front panel. At least one light will be
illuminated whenever power is on.
Input Indicators
The input indicators show
which input is selected.
A flashing light indicates an
error on a digital input.
The HT light shows that HT
mode is active.
U A solid blue light indicates that the USB
input is selected and operating normally.
A blinking blue light indicates that the
input is selected but a connection to a
computer has not been established.
D1 A solid blue light indicates that optical
input D1 is selected and operating
normally. A blinking blue light indicates
that the input is selected but audio data
is not being received.
D2 A solid blue light indicates that optical
input D2 is selected and operating
normally. A blinking blue light indicates
that the input is selected but audio data
is not being received.
D3 A solid blue light indicates that coaxial
input D3 is selected and operating
normally. A blinking blue light indicates
that the input is selected but audio data
is not being received.
D4 A solid blue light indicates that coaxial
input D4 is selected and operating
normally. A blinking blue light indicates
that the input is selected but audio data
is not being received.
Note: D4 cannot be selected if the Digital
Pass Through function is enabled.
Instructions for configuring this jumper-
selected function can be found in the
Internal Settings section of this manual
(Page 28).
Manual for DAC2 D with 2.X Firmware - Rev. H
Input Error Codes
The input indicators flash when errors are
present on the selected digital input. Use the
following table to diagnose the problem:
Slow Flash No digital signal (output
(2Hz) muted)
Med. Flash Data transmission errors or
(7Hz) Non-PCM (output muted)
Rapid flashes Non-audio data is being
(14Hz) received (output muted)
Intermittent Some data corruption is
flashes occurring, converter may be
interpolating to replace
invalid samples, check the
cable.
Tip: Common causes of input errors:
 Disconnected or faulty cable
 Use of excessively long digital cables
 Use of analog cables for digital signals
 Use of optical cables for sample rates
exceeding 96 kHz
 Incompatible data type (AC3, ADAT, etc.)
 Non-audio data is being received
HT Indicator
HT A solid light indicates that the HT mode
is active on the selected input and the
volume control is in the factory
calibrated position (near full clockwise).
A blinking light indicates that the HT
mode is active but the volume control
has not yet reached its calibrated
position. The HT light and DIM/MUTE
light will blink together if the unit is
muted while HT mode is active.
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