Notes:
1.
If the device is in special mode for 10 seconds and the front knob is not touched, the
equipment automatically reverts to VOL/MUTE mode.
2.
In tone control mode, when you turn the knob in either direction it flashes fast while the
gain of the affected tone increases. When either end of the scale is reached (-10 ó
+10dB) or when it goes through the centre point (0dB) it flashes more slowly.
4.3. AUTO STANDBY Function
The AUTO STANDBY function (idle or low consumption mode) means you can install the
CA40 in inaccessible places and leave the device connected to the mains power supply indefinitely
because when no signal is detected, it automatically goes into standby mode, saving energy.
To enable AUTO STANDBY use the micro switch with the same name on the rear panel
of the unit (see section 7. DIAGRAM OF FUNCTIONS). When activated, if there is no audio signal
in any of the inputs (or the signal is very weak, below the activation threshold), the CA40
automatically goes into STANDBY mode, and the ON/STBY on the front panel of the device goes
orange. When a valid audio signal is detected in any of the inputs, the CA40 leaves standby mode
and starts operating normally again and the ON/STBY LED goes green.
When you enable AUTO STANDBY mode with the micro switch (position ON) one of two
things happens:
a)
There is NO audio signal in the inputs. Result: the amplifier immediately goes into
AUTO STANDBY mode
b)
There is an audio signal in the inputs. Result: the amplifier stays active
When the amplifier goes into AUTO STANDBY mode, all the LED indicators go out with
the exception of ON/STBY. If the amplifier is in STANDBY node and you turn the VOL/MUTE
knob to adjust the volume or activate the MUTE function, the LED lights will come on for a short
time then go out again. Remember that the first acting on the VOL/MUTE knob, this will only
reset the LED indicators, and will not change any of the settings.
When the unit is a special mode (source selection or setting adjustment) the LED
indicators will not go out even if the amplifier is in AUTO STANDBY mode.
4.4. LED indicators
•
SP: The signal presence or SP LED indicator shows that there is a signal in the
amplifier input. This lights up when the input level reaches the established
detection threshold.
•
CLIP: The saturation or CLlP LED indicator comes on when the signal delivered
to the speakers is close to the amplifier's clipping or saturation level. Input signals
should be set to ensure the CLIP (saturation or cut off) indicators never stay on,
but that they do so at most to the beat of the lowest sound frequencies. Otherwise
the amplified signal will be distorted with low quality and low integibility.
•
MUTE: This lights up when the MUTE function is active (silent mode)
•
ON/STBY: the green light comes on when the equipment is in normal operating
mode and it goes orange when it is in standby or low consumption mode
(STANDBY).
•
LEVEL: This flashes when you adjust the general level of the device. It also lights
up during special adjustment modes, input levels (see section 4.2. Special active
source selection mode and setting adjustments)
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