DCS Elgar Plus - Crackles or Pops Occur While Playing Music; One Audio Output Channel Is Low or Absent; The Left and Right Channels Are Swapped; The Main Display Turns on Briefly When a Control Is Operated, then Turns off

dCS Elgar Plus User Manual Manual for Software Issue 4.3x
dCS Ltd August 2005
Manual filename: Elgar Manual v4.4x.doc Page 66 email: more@dcsltd.co.uk
English version web-site: www.dcsltd.co.uk
The unit fails to respond to the controls
• Check that the STBY indicator is not lit - if so press the Power/Standby
button to return to normal operation. Alternatively, switch off, wait 10
seconds and switch on – Standby mode will be cancelled.
• While locking to a source or changing some settings (e.g. Filter), the
microcontroller inside Elgar Plus is busy and will not respond to new
commands for a few seconds.
• If the Mute fade-out rate is set to Mute-Slw, the unit may be unresponsive
for a few seconds while slow muting is in progress (see page 22)
• Short mains supply drop-outs may cause the microcontroller to lock up.
Switch off the unit, wait 10 seconds then switch on again. If this does not
clear the fault, please contact your dealer.
The Main Display turns on briefly when a control is operated, then turns off
• This happens when the Display Brightness is set to Bright 0. Change to
any other brightness setting to stop the display blanking out (see page 24).
The Left and Right channels are swapped
• Check that the audio output cables are not reversed.
• Open the menu and page through until the Swap page is displayed. If it is
set to Swap-On, change it to Swap-Off.
• Check that the channels are not swapped elsewhere in the system.
• If you are using Dual AES mode, ensure that AES 1 input is connected to
the output on the source equipment carrying the Left channel data (probably
labelled AES1 or AES A) and the AES 2 input is connected to the output on
the source equipment carrying the Right channel data (probably labelled
AES2 or AES B). See the manual for the source equipment for information,
and also page 23.
One audio output channel is low or absent
• Check that the Balance control is correctly set (see Rotary Control on
page 37).
• Check that the audio output cables are connected correctly and are not
damaged.
• Check that the balance is not offset elsewhere in the system.
The sound has a peculiar tonal balance
• Set De-Emphasis to Auto – see page 35.
• If this fails to correct the problem, the De-Emphasis flags in the data stream
may be incorrectly set (this is rare but it does happen). To find the correct
De-Emphasis characteristic, change the De-Emphasis setting to 50/15µs,
CCITT or Off in turn until the correct setting is found. When you change to a
different disk or tape, we recommend setting De-Emph to Auto again.
Crackles or pops occur while playing music
• The source may have a high level of jitter. Try setting the PLL parameter to
PLL:Wide. See page 25.
• The digital audio cable connecting Elgar Plus to the source may be
damaged, intermittent or of the wrong type. Some expensive cables are not
correctly designed for digital audio use. Try another cable.
• The CD may be dirty - clean it very carefully using a radial motion.
• The disk / tape may be damaged or contain corrupted data.
• The audio output level may be enough to overload a preamplifier or power
amplifier.