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Quick Set Up Guide - icon Audio Stereo 20 Instructions Manual

Valve amplifier

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1 Unpack unit carefully. It is important
that
you
keep
warranty/service return/transit or storage.
2 Check that the valves are fitted
properly. Handle the valves with a soft
cloth. The valves may be gently pushed
into place. It is normal for them to feel a
little loose. If not fitted fit the valves in the
appropriate position before proceeding.
The three 'driver' valves are marked. The
Russian EL:84's may not be marked but
are the larger four which go to the rear.
3 Connect to source units, e.g. CD,
Tuner, Tape, Phono pre amp (if used) etc
via appropriate phono sockets.
4 Connect to speakers A suitable
impedence is from 4 to 8 ohms (see back
of speakers). Most modern speakers are
4ohms. Don't forget to get the correct
polarity of speaker cables. (See speaker
connections chapter). If 'bi-wiring' both
'common' should go to the black terminal,
and both 'positive' (or red) should go to
the red terminal. Do not use more than
one pair of speakers. A second banana
plug may be accommodated through the
'bare wire' hole in the post.
5 Connect to mains supply using
supplied IEC mains lead to 240v supply.
If for some reason the welded plug
must be removed, please remove fuse
and dispose of immediately. (As they
can be a danger to children if plugged in).
The replacement plug should be wired in
the following way Brown to Live terminal,
Blue
to
Neutral
Green/Yellow to Earth terminal.
6 SWITCH ON! The blue mains indicator
should light up and unit will take
approximately
40
working. All valves should have a visible
IMPORTANT READ THIS FIRST

2 QUICK SET UP GUIDE

packaging
for
terminal
and
seconds
to
start
orange glow from the cathode heaters.
With the volume control set to minimum
(fully anti-clockwise) there should be no
sound coming from the speakers except a
barely discernable gentle hum. If there
are any unpleasant sounds coming from
the speakers, switch off and refer to the
'Trouble Shooting' section or contact Icon
Audio.
If your unit is fitted with the HT delay
timer, operation will begin after the unit
switches the HT on (approx 25-50 secs),
your may hear very low distorted sound
from the speakers during the warm up
time. This is because there is virtually no
HT to operate the amplifier. We suggest
you reduce the volume until the HT cuts
in.
7 Your unit should now be functioning.
If
not
check
wiring
selector/tape monitor/volume to choose
source program and suitable listening
volume. Do not operate at a high volume
for the first five minutes to allow the
valves to warm up properly.
8 Health and Safety. The valves when
operating
have
temperatures. Keep out of reach of
children and pets. The use of the supplied
guard
is
recommend
circumstances.
Always
making adjustments. Like all amplifiers
there
are
potentially
voltages inside (300v DC), which when
switched off can take up to 1 hour to
discharge! Do not remove bottom panel
unless you are a competent engineer.
There are no user serviceable parts
inside. Like other household electrical
appliances do not leave unattended
whilst switched on.
again
and/Use
high
surface
in
these
unplug
when
lethal
high
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