Manual
AVR300
E-30
AVR300
E-31
English
Hum on an analogue input:
Check that:
n
  all cables are making a good connection. If necessary 
withdraw the cable from the connector and plug it fully 
in again. (Turn the power off before doing this.)
n
  the connections inside the source cable connector are 
not broken or badly soldered.
n
  if the hum originates only when one particular source 
component is connected, that an aerial, cable or dish 
connection to this source is ground isolated. Contact 
your installation contractor.
n
  try switching the ground lift switch on the back panel.
There is radio or television reception interference:
n
  check where the interference is coming from. Switch 
off each source component in turn, then any other 
equipment. Most electronic equipment does generate 
low levels of interference.
n
  try re-arranging cabling from the nuisance source away 
from other cabling
n 
ensure that the cabling used is high quality, specied 
for its purpose, and is properly screened.
n 
if the problem persists contact your installer.
The source switching changes randomly or freezes on 
one source:
Check that:
n 
there are no static or impulse interference problems 
caused by nearby power equipment switching, e.g., 
heating or air conditioning control. Switch the AVR300 
off, wait ten seconds, then switch it on again to clear 
an operating problem. Contact your installer if the 
problem returns or persists.
Volume is always too loud when I turn the system on 
for the main zone or Zone 2:
Check:
n 
the ‘Max On Volume’ line of ‘General Settings’ or 
‘Zone 2 Settings’ pages in the Set-up Menu. They will 
need adjusting to a lower level.
You can’t select a particular input in Zone 2:
Check that:
n 
you have not blocked that particular input using the 
‘Access’ line of ‘Zone 2 Settings’ in the Set-up Menu.
When Zone 2 is put into stand-by, the main zone is 
also turned off:
Check that:
n
  the ‘Zone 2 Stand-by’ line of ‘Zone 2 Settings’ in the 
Set-up Menu is set to Local Only.
Unstable OSD on screen display:
The AVR300 defaults to the NTSC video standard for US 
units and PAL for European units.
If your display device is unable to display the default video 
standard, attach a source component the generates the 
video standard you wish to use; the AVR300 will switch 
automatically to the supplied video standard when the 
source is selected.
No Zone 2 audio when playing DTS lm:
Most two-channel DVD players cannot output a stereo 
decoded version of the DTS signal – the analogue outputs 
are muted when playing back DTS lms. If you want to 
watch a DVD in both the Main zone and Zone 2, please use 
the Dolby Digital sound track.
No centre image (vocal) in Zone 2 when using the 
multi-channel input:
Most DVD/SACD players are unable to provide a two-channel 
down-mix of source material at the same time as decoding 
a multi-channel audio stream. Therefore, only the front 
left and right channels from the multi-channel mix will be 
available in Zone 2.
To overcome this, play the stereo mix from the DVD-audio 
disc instead.
Strange aspect ratio of video in Zone 2:
Most DVD players can only decode video to one aspect ratio 
at a time. For example, if you are using wide screen in the 
main zone, then wide screen information will also be fed to 
Zone 2.
To overcome this, either set the lm to 4:3 for the main 
zone when you want to use Zone 2 as well, or change the 
Zone 2 display to a wide screen capable type.
Unable to adjust bass and treble controls:
Bass and treble is not available in ‘Direct’ mode. For 
Analogue Stereo and Digital Stereo modes, check that the 
‘Auto Stereo Tone Bypass’ line of ‘Speaker Eq’ in the Set-up 
Menu is set to NO.
Digital signal drops out when other electrical 
appliances turn on (heating, fridge, freezer, etc.):
If a poor quality or incorrect type of cable has been used for 
the digital inputs, they can pick up electrical noise. Change 
the cable to a 75Ω low loss coaxial type.
Check the connections have not oxidised. Clean the 
connectors with contact cleaner if they appear oxidised.










