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Cambridge Audio Azur 651W Manual

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8
Power syncing (On/Standby control)
When going in/out of Standby mode the Azur 851E pre-amplier can (if
desired) automatically control the 651W when connected via the Control
Bus sockets (the Control Bus sockets are colour-coded orange on the
rear panels of compatible Azur models). For this feature to work the units
must be connected together by RCA/phono leads. No further setup is
necessary.
Connect the Control Bus Out from the 851E to the Control Bus In on the
651W. Continue the chain to other Azur models if it is required to sync
more units (refer to the 851E’s own manual for more information as this
requires some setup).
Note: The 851E features a Trigger Out which can alternatively be used to
control the 651W’s Standby/On status if desired. Again, the procedure is
simply to connect the two units together (using a 3.5mm to 3.5mm mono
mini-jack lead in this case).
Control Bus is the recommended method when using an 851E and other
Cambridge Audio equipment with Control Bus In/Out.
Trigger In/Out can be useful if the 651W (and indeed 851E) is desired to
be controlled by other equipment that features trigger outputs (Custom
install and/or Multi-Room Systems etc).
651W
851E
1. Control Bus
2. Trigger In/Out
1
2
Powering On/Off the 651W
As well as simply using the front panel button the 651W features multiple
ways it can be automatically powered on and off.
A trigger 5-12V AC or DC input to the Trigger In on the rear panel can
power up or down the unit from custom install systems or preamps with
trigger outputs. This is an ‘edge triggered’ input so that the 651W will
power on with a zero-to-positive voltage transition and power down with
a positive voltage to zero transition.
Alternatively the 651W features a Control Bus Input for use with our
matching 851E preamp that allows a single RCA/Phono to RCA/Phono
cable to be connected between them that allows the 851E preamp to
communicate with the 651W and automatically control its power status.
For custom install situations it is also possible to send Infra Red or
Control Bus commands (see our website for the code table) to the 651W
and also affect power control.
Lastly the 651W can sense its audio inputs and automatically power up
if a signal is present and conversely Auto-Power Down if no signal has
been present for 30 mins.
To enable/disable Auto Power Up/Auto Power Down see the next section
on the hidden conguration menu.
The 651W features a Control Bus input/output that
allow un-modulated remote control commands
(positive logic, TTL level) to be received electrically
by the unit and looped to another unit if desired.
These control commands are typically generated
by custom installation (multi-room) systems or
remote IR receiver systems. The Control Bus sockets are colour-coded
orange.
An IR Emitter Input is also provided that allows modulated IR remote
control commands to be received electrically by the unit. Commands on
this input operate the unit only and are not looped out demodulated on
the Control Bus Output.
The unit responds to ‘direct’ IR/Control codes as well as toggle codes
for some features to simplify programming custom installation systems.
Special direct On/Off and Mute commands can be accessed from the
851E pre-amplier remote control for teaching into C.I. systems as
follows:
1. Press and hold the Standby/On button. The remote rst generates
a standby (toggle) command. Keep the button held down, after 12
seconds an amplier “On” command will be generated. If the button
is kept held down for a further 12 seconds, an amplier player “Off”
command is generated.
2. Press and hold the Mute button. The remote rst generates a mute
(toggle) command. Keep the button held down, after 12 seconds a
“Mute on” command will be generated. If the button is kept held down
for a further 12 seconds, a “Mute off” command is generated.
These commands are recognised by the 651W via the IR Emitter input.
A code table for this product is available on the Cambridge Audio website:
www.cambridge-audio.com
Custom installation (C.I.) use
IR Emitter
In In Out
RS232C
Control Bus
… 8 …


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