Leema-acoustics Tucana Handbook - Front Panel Controls

Front panel controls

Standby button 

The blue light in the centre of the standby button is illuminated if the unit is in standby mode.  Pushing the standby button once 

or pressing the power button on the remote control will turn the unit on.  The LED ring around the volume control will flash for a 

few seconds while the Tucana initialises.  If mains power has not been removed from the unit, the previously used input is re-

selected and the volume setting slowly raised to a low level. This fade up can be interrupted at any time by turning the volume 

control on the front, or by pushing either of the volume buttons on the remote control.

Source selection switch

Turning the input source selection switch will sequentially cycle through the amplifier’s input sources.  The audio will mute for a 

fraction of a second while switching to stop any unwanted clicks, then restore to a low level.  When AV direct is selected the 

volume initially returns to a low level then slowly fades up to a pre-set unity level.  The volume can be manually overridden at any 

time by turning the volume Knob or by pushing either of the volume buttons on the remote control.

Volume control

The volume control is in fact a high quality rotary encoder, which controls a Burr Brown precision attenuator under microprocessor 

control.  The ring of blue LED's around the control, act as a visual indication of the volume setting.  This has the advantage that it 

is clearly visible when viewed from a distance or when using the remote control.  This method of volume control permanently 

ensures the highest fidelity without the gradual degeneration of conventional motorised volume controls.  The volume control 

has no effect on the tape-output record loop, but does control the pre-out volume. 

Controls

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Remote control

There are only six buttons on the remote control 

Power

The power button (small red button) turns the unit on from standby or reverts to standby from power on.  When powered on, the 

volume ring will flash while the unit initialises then, if applicable, the previous input selection will be restored and the volume will 

slowly fade up to a low level.  The fade up sequence can be overridden at any time by using either the volume control or the 

remote control volume buttons.

Mute

Pressing the mute button once while the system is playing will cause the volume to rapidly fade to zero.  A second push of the 

button will restore the volume level. 

Input

The input up and down buttons cycle through the seven available input sources one-button push at a time. The audio mutes for 

a fraction of a second between selections.

Volume

Two buttons, one for up and one for down, control the volume.  If using a complete Leema system, the volume of the Hydra and 

Cygnus will also change in step with the Tucana. Short presses on the volume buttons will change the volume in small 

increments.  Press and hold the volume up or down buttons to smoothly raise or lower the volume.

Remote control

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