640T V2.0
DAB/FM tuner
Azur DAB/FM tuner
13
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
Ensure that the amplifier is set correctly.
Check that the interconnects are inserted correctly.
Check aerial connections and an available station is selected.
The sound is distorted or garbled
Check aerial connections and placements.
There is a hum coming from the speaker
Ensure that all cable connections are secure, particularly ground/shield
connections.
There is unwanted background noise and interference
Move the unit away from other electrical equipment that is likely to
cause interference.
Re-orientate the aerial.
The remote handset will not function
Check that the batteries have not expired.
Ensure that nothing is blocking the remote sensor.
TROUBLESHOOTING
The 640T V2.0 has a Control Bus input/output that allows unmodulated
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 IR repeater systems.
The Control Bus sockets are colour coded orange. The 640T V2.0
features an IR emitter input allowing modulated IR to be received (IR
commands received here are not looped out of the Control Bus). The
640T V2.0 also features direct IR/Control codes as well as toggle codes
for many of its features to simplify programming custom installation
systems. Special direct commands can be accessed on the supplied
remote control for teaching into C.I. systems as follows:
Specific power on/off commands – Press and hold the
Standby
button.
The remote first generates it's usual amp and tuner standby (toggle)
commands (both are sent). Keep the button held down, after 12
seconds an ‘Amp On’ command will be generated, then if the button is
kept held down after a further 12 seconds an ‘Amp Off’ command is
generated, then separated by 12 second pauses, ‘Tuner On’, and finally
‘Tuner Off’.
Specific band selection commands – Press and hold the
DAB/FM
button. The usual band toggle command is first, then the ‘DAB Mode’
command, followed by the ‘FM Mode’ command is generated.
Specific NCT commands – Press and hold the
NCT
button. The usual
NCT toggle command is first, then the ‘Warm’ command, the ‘Dynamic’
command and then the ‘Off’ command.
Specific Mute On/Off commands – Press and hold the
Mute
button. The
usual mute toggle command is first, followed by the ‘Mute On’
command, and then the ‘Mute Off’ command.
A full code table for this product is available on the Cambridge Audio
website at www.cambridge-audio.com.
CUSTOM INSTALLATION (C.I.) USE
