Advertisement
Trouble Shooting
Amplifier Dead
Check the 1 amp (2 amp USA) mains fuse which is in
a fuse holder which forms part of the mains socket on
the power supply switch. Replacements should be
20mm 1Amp (2Amp USA) 'anti-surge' or "T" type.
These are available free from Icon Audio should you
have any difficulty.
The fuse in the mains plug (if fitted) should be a 3 or 5
amp fuse, although unlikely, this should be checked if
the amplifier fuse is OK.
No sound
Have you selected the right input? Are the
connections OK? Is everything switched on? Are the
speakers connected?
Distorted sound.
Try another source; if sound improves then it's
probably something wrong with the first source. If no
improvement try different speakers, if no improvement
could be an amplifier problem.
Hum Problems
Try the rear "ground lift switch" in the "up" position, (it
would normally be "down".
These are generally caused by "bad" earths or bad
connections. A common cause is a 'hum loop' caused
by having too many earths, and may be identified by
unplugging each input source from the mains.
Other causes of low-level hum can be from adjacent
equipment, so experiment with moving equipment
around to see if this makes the hum better or worse.
One channel missing.
Usually 'bad' connections are on either the input or
the output. Try swapping the connection over to
establish if the cause is:
(a) Input to the amp.
channel.
(b) Amplifier or speakers.
Strange noises coming from speakers:
Try the "By Pass" switch in the "down" position if the
fault disappears it is the BA3, if the fault remains it is
elsewhere in your system.
A valve that is lit up is not a guarantee that it is
working properly; conversely a valve that is not lit up
will not be working.
The single 0A2 regulator valve should get warm with
a very dim violet glow which can only be seen in a
dark room.
Valve Life and Replacement
Valve life will depend upon such things as hours of
use and number of on/off cycles. As a rough guide we
would estimate life of approx 4 to 10 years. But this
can vary. For example a unit left on continuously for 6
months is equal to 4,400 hours the nominal life the
valves. If the unit is used most days we would
recommend changing the valves ever two years.
What can happen?
A valves is at the end of it life if one of the following
happens:
•
6N6s are twin triode valves. One of the two heaters may
fail, causing no sound.
•
A valve could get "noisy" or "microphonic"
•
The emission (and therefore output and sound quality)
may reduce slowly.
•
The valve works intemittantly.
•
An air leak causes the silver "getter" material to turn
white making the valve useless.
Sound will move to the other
Sound will not move.
Icon Audio is the best company to buy your valves from.
Unfortunately valves that are "tested" does not reveal noise or
hum that valves may suffer from. Replacement valves
purchased from us are tested for balance and matching, then
aged in the same equipment that the valve will be used in to
ensure that its works AND SOUNDS exactly as it should. This
way up to 25% of new valves are rejected so you can be sure of
the best quality regardless of whether this is a "standard" or a
"premium" valve.
It is essential that only the correct valves are used
as some similar looking valves have a different
pin connection and insertion could result in
damage to the amplifier and risk of electric shock.
It is not good practice to remove the valves
unnecessarily as this can strain the pins and cause
tiny air leaks. Icon Audio are happy to replace valves
and check to performance of your amplifier, and
advise on the latest upgrades available.
Although the two original 6N6 valves are normally
identical we suggest that if removed, they are
replaced in the same position. You could mark them,
e.g. with a felt tipped pen.
Service: Should you suspect a problem, you could
return the unit to your dealer or Icon Audio for a
periodic service or return the valves for testing free of
charge. You should carefully remove the valves they
should be well packed in cardboard & foam or similar,
and returned to Icon Audio for testing. (Valves are
very rugged if packed properly).
Specification & Features
•
Freq response 10hz-100khz +0 -0.1db
•
Gain= 0.94 or -0.6db
•
Signal to noise level -100db
•
THD 0.01%, @ 1khz, 2v rms 47k load
•
Output impedance 150 ohms
•
Maximum output 60 volts
•
All Triode design
•
No printed circuit board
•
Hand wired point to point components
•
0A2 gas regulated power supply
•
2x 6N6 Double triode
•
High quality metal film resistors
•
LED mains indicator
•
Audio grade Polypropylene audio capacitors
with Jensen copper foil in paper and oil option
•
Silver plated OFC PTFE audiophile audio cable
•
Rubicon/Nichichron power capacitors
•
DC heater power supply for minimum noise.
•
Audiophile Gold plated Input & output terminals
•
230/240volts, 20W 1A T (117v 2A USA)
•
mains lead, (UK plug 5amp fused)
•
C E certified ROHS/WEE compliant
•
Size & Weight 33W 14D 13H cm 2.9KG
•
Packed 39W 22D 24H 3.2KG
(Specifications subject to change, errors & omissions excepted 13/11/19)
icon Audio
351 Aylestone Road Leicester LE2 8TA
www.iconaudio.com
Ph +44 (0) 116 244 0593 +44 (0) 7787 158791
(UK) Ltd
Page 4
Advertisement
