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IMPORTANT READ THIS FIRST
2 QUICK SET UP GUIDE
1 Unpack unit carefully
. Make sure that it is
in good condition. If not report to Icon Audio.
It is important that you keep packaging for
warranty/service return.
2 If Necessary fit the valves, or check that
they are firmly in place.
The EL34s (or
6CA7) should be fitted first observing the
numbers 1,2,3,4 on the rear of the valve, this
corresponds with the four sockets from left to
right viewed from the front. This is essential
as each valve is ‘set up’ in this position.
Do
not push or pull the EL34’s by the glass
envelope
, this could cause the glass
envelope to become detached from the base,
damaging the valve. The small valves may be
gently pushed into place (12AT7= ECC81,
12AX7= ECC83). It is normal for them to feel
a little loose.
3 Connect to source units
, e.g. CD, Tuner,
Tape, Phono pre amp (if used) etc via
appropriate phono sockets.
4 Connect to speakers
making sure that the
correct impedance (ohms) is chosen, (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 either
4 or 8 ohm terminals. Do not use 4 and 8
ohm at the same time.
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 terminal and
Green/Yellow to Earth terminal.
6 SWITCH ON!
The blue mains indicator
should light up and unit will take
approximately 40 seconds to start working.
All valves should have a visible 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 again and/Use 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.
Please note all these things are normal for
valve amplifiers:
A, Valves can get very hot, BEWARE!
B, The transformer cover will get quite warm
C, The amplifier may smell for a few weeks.
D, Mobile phone ‘breakthrough’ is normal.
E, Valves may make a ‘tinkling’ sound when
warming up and cooling down.
F, One channel may come on before the
other at switch on.
G, The volume control may sometimes
appear to sound ‘Scratchy’, this is not a fault!
H, There may be a ‘click’ when switching off.
8 Health and Safety
. The valves when
operating have high surface temperatures.
Keep out of reach of children and pets. The
use of the supplied guard is recommended in
these circumstances. Always unplug when
making adjustments.
Like all amplifiers
there are potentially lethal high voltages
inside (400v DC), which when switched off
can take several minutes 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.
Do
not adjust the EL34 grid bias pre sets without
reference to the manual. Incorrect adjustment
could cause the valves to overheat, with
resulting in damage to valves and amplifier.
