23
Classic PRE
User Instructions
Troubleshooting guide
If your preamplifier is not operating properly, disconnect
the power and check carefully all connections.
If you are in any doubt, consult your retailer.
No sound
The preamplifier is
switched off or in Standby
Bring the unit out of
Standby
(Standby light - GREEN)
Mute is on
Deselect Mute
The source is not working
(e.g. CD not playing or
paused)
Check the source
No sound (digital sources)
The sample rate or sound
format of the digital signal
from the source may not
be correct.
Check that the sample rate
from the source is within
the specification of the
preamplifier and that the
program is encoded as two
channel stereo.
No sound from one loudspeaker
BAL control at extreme
limit
Centralise Balance
Does your speaker have
fuses?
Check speaker, replace
fuses
Speaker cables /
interconnects faulty
Check connections, cables -
replace if needed
Spurious noises from speakers
Interconnects or
connections faulty
Check, replace where
necessary
Remote control not working
Remote control not
operating
Check batteries
Remote control lights flash
This indicates that the
batteries are flat
Error indicators
Your preamplifier has a unique error indication system
to help you to diagnose problems. There are two error
condition messages that may be displayed in the event of
a system error –
Error - PSU
This error will be displayed
if there is a fault with the
internal power supply of
the preamplifier.
A PSU error cannot be
corrected by the user. The
preamplifier should be
returned to your retailer.
Error - Mains
This error will occur
if there’s a significant
disturbance in the mains
power supply.
Switch off mains power,
wait for 30 seconds and
re-connect power. The
error should not re-occur if
the mains power supply is
stable.
If a fault condition still remains, return the preamplifier
to your Cyrus appointed retailer or an authorised Service
Centre.