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840Eazur
ENGLISH
15
The 840E 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.
An RS232C port is also featured which allows the 840E to be
controlled by C.I. systems.
In addition the unit features ‘direct’ IR/Control codes as well as toggle
codes for some of their features to simplify programming custom
installation systems. Special direct On/Off and Mute commands can be
accessed on the supplied remote control for teaching into C.I. systems
as follows:
1. Press and hold the Standby/On button. The remote first generates it's
standby (toggle) command. Keep the button held down, after 12
seconds an amplifier “On” command will be generated. If the button
is kept held down for a further 12 seconds, an amplifier player “Off”
command is generated.
2. Press and hold the Mute button. The remote first generates it's 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.
A full code table and RS232 protocol for this product is available on the
Cambridge Audio website:
www.cambridge-audio.com
Custom installation (C.I.) use
IR Emitter
In In Out
Control Bus
There is no power
Ensure the AC power cord is connected securely.
Ensure the plug is fully inserted into the wall socket and is switched on.
Check fuse in the mains plug or adaptor.
There is no sound
Make sure the unit is not in Standby mode.
Check that source component is properly connected.
Check that Input 8 (Rec In) is not switched on (unless a tape input is
required).
Check that your speakers are properly connected.
Make sure unit is not in mute mode.
There is no sound on one channel
Ensure that balance control is in the correct position.
Check speaker connections.
Check interconnects.
There is a loud buzz or hum
Check turntable or tone arm for ground and connection lead fault.
Ensure no interconnects are loose or defective.
Ensure that your tape deck/turntable is not too close to the unit.
Unable to make or play tape recordings
Check that Input 8 (Rec In) and Rec Out have been connected correctly.
There is weak bass or diffused stereo imaging
Ensure that speakers are not wired out of phase.
The remote handset will not function
Check that the batteries have not expired.
Ensure that nothing is blocking the remote sensor.
For more frequently asked questions (FAQs), technical advice and
information on getting the most out of your 840E, please visit the
Support section on Cambridge Audio’s website:
www.cambridgeaudio.com/support.php
For all servicing, in or out of warranty, please contact your dealer.
Troubleshooting
THD (+ noise) < 0.0006% @1kHz
< 0.003% @20kHz
S/N (unweighted) < 121dBr
< 100dBu
Frequency response 10Hz - 100kHz ± 0.1dB
Crosstalk @1kHz > 100dB
Input isolation > 115dB
Maximum output 8V rms unbalanced
8V + 8V rms balanced
Output impedence 100 Ohms (Unbalanced or Balanced)
Subwoofer out Flat or 200Hz 2nd Order Butterworth LPF
Max power consumption 36W
Bass & Treble controls Shelving type
Max bass boost/cut ± 10 dB at 10 Hz
Max treble boost/cut ± 7.5 dB at 20 kHz
Dimensions (H x W x D) 115 x 430 x 385mm
(4.5 x 16.9 x 15.2”)
Weight 8.7kg (19.1Lbs)
Technical specifications
15


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