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7. SERVICE NOTES
7.1 TROUBLESHOOTING
Cracking noises when switching on and off
POSSIBLE CAUSES
> Household electrical equipment such as
older refrigerators or 12-volt halogen light-
ing systems can generate strong radio
interference when they switch on and off.
This electrical interference can cause an
audible crack or pop through the speakers.
REMEDY
> Connect your hi-fi system to a central
mains distribution board plugged into a wall
socket. Do not connect any other electrical
equipment either to the board or socket.
Volume imbalance between the left and right channels
POSSIBLE CAUSES
> Damaged cables and poorly fitting phono
plugs can create resistance in the signal
path, which can cause one channel to
sound louder than the other.
> Recording equipment (reel-to-reel, cas-
sette, CD or DAT recorder) with a faulty
input or lead can overload the output and
cause an imbalance between the left and
right channels.
REMEDY
> Change the lead, clean plugs and sockets
with isopropyl alcohol.
Warning: Do not use contact cleaning
sprays.
> To isolate the cause of the problem, dis-
connect your recording device(s) one at a
time. Check the interconnect cables used for
recording and renew them if necessary. If
you still have not alleviated the cause of the
problem, have your recording equipment
checked for faults.
Increased hiss on one channel
POSSIBLE CAUSES
> Hiss that varies in level is a sign of a
faulty or worn driver tube.
REMEDY
> You must replace the tube that is causing
the problem. Return the amplifier to us. We
will also gladly ship replacement tubes. You
will find important instructions on replacing
tubes in Section 6.1.
Please note:
OCTAVE offers a 12-month warranty on
tubes.
7.2 SERVICE ADDRESS
If none of these service tips have helped
because your problem is not included here,
please contact your OCTAVE dealer or mail
our Service Support directly.
[email protected]
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