Using Your A90 Integrated Amplifier; Front Panel Controls - Arcam A90 Handbook

Using your A90 integrated amplifier

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RECORD MODE
PHONES PHONO/AUX
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Front panel controls

This section describes how to operate your amplifier.
If your amplifier has not been installed for you, you should
first read the section 'Installation: A90 integrated amplifier' on
page 4.
POWER (and power indicator light)
Switches the unit on and off. (You can also switch the amplifier
into standby mode with the remote control handset.)
The light indicates the status of the amplifier. A red light means
the amplifier is in standby mode (press the
button on the remote control, or the
panel, to switch between standby and powered-up modes).
When you switch your amplifier on, the light glows amber for a
few seconds, during which time the speakers are disconnected.
The light changes to green when the amplifier is ready for use.
The light may flash if a fault has occurred – the fault type is
shown on the display. You should unplug the amplifier and leave
it for a few minutes before reconnecting. If the fault cannot be
cleared, unplug your amplifier and contact your Arcam dealer.
Source selectors
These buttons select the source connected to the
corresponding input. A light above the relevant button indicates
which input is currently selected and it will also usually be
shown on the display.
VCR
This input is similar to the other line level inputs on the amplifier
and may be used with a VCR or a second recording unit (e.g.
cassette deck).
TONE
Switches the tone circuits on and off, including settings for
individual sources. Note that the tone LED does not light unless
a tone setting has been made. (see page 8).
Control knob, SELECT and ENTER
The control knob has two functions:

A90/P90

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ENTER
SELECT
CD TUNER AV DVD
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POWER
2
4
6
as a volume control, to adjust the output of loudspeakers
and headphones connected to the amplifier, and of the
pre-amp output ( .
PRE OUT)
when used in conjunction with the
buttons, to customise amplifier settings (see page 8).
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Volume control settings
It is important to realise that the position of the volume control
is not an accurate indication of the power delivered to your
loudspeakers. The amplifier often delivers its full power long
before the volume control reaches its maximum position,
particularly when listening to heavily recorded compact discs.
However the amplifier also has to be capable of giving full
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power output from much lower level sources, such as tuners
and cassette decks. Using these sources, the volume control
setting may be much higher before distortion (audible overload)
sets in. To compensate for this, the input levels of each source
POWER/STANDBY
may be individually adjusted to avoid accidental overload (see
button on the front
page 8).
SP1 and SP2
These buttons allow you to select and deselect the main (
and secondary (
The light above each button glows if the corresponding
speakers are currently selected. (If both lights are out the
amplifier will appear not to work, as all speakers are switched
off!)
PHONES
This socket accepts headphones with an impedance rating
between 8Ω and 2kΩ, fitted with a 1/4-inch stereo jack plug.
If you wish to listen on headphones only, use the
buttons (if necessary) to mute the speakers. The headphone
socket is always active.
Remote control receiver
The remote control's infrared receiver is positioned to the left
of the
sight from the remote control to allow signals to be received.
MODE, UP and DOWN
These buttons are mainly for use with future optional modules,
however the
amplifier to move the cursor when customising the 'Welcome
3bobn
message' (see page 8).
and
SELECT ENTER
VCR TAPE TONE SP1
4 5
6 7
7
) set of speakers attached to your amplifier.
SP2
1
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button. Ensure the receiver is in a clear line of
RECORD
blbm
and buttons are used with the basic A90
UP DOWN
A90 INTEGRATED AMPLIFIER
SP2 POWER
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)
SP1
and
SP1 SP2