28
LINUS10
4. OPERATION
4.2 Indicators
4.2.1 Limit LEDs (channel A / channel B)
This LED indicates an overloading of the corresponding amplifier channel.
4.2.2 Input signal LEDs (channel A / channel B)
The green signal LED is illuminated when the input signal level is -45 dBU or -60 dBFS and are unaffected by the DSP
output settings. Note that these LED's are driven only by the input signal and will therefore also be active if all output
channels are muted.
4.2.3 Sensor LED
This RED LED is off when the sensor feedback loop is closed. Should the choosen preset demand for a sensor feedback and
the cable is not connected this LED will be illuminated as a warning signal to check your cables.
4.3 Power amp protection systems
4.3.1 SOA protection
Ensure that the power transistors are only used in the Safe Operation Area (SOA). If that should not be the case, the SOA
protection would mute the corresponding channel. As soon as the power transistors are back in their SOA, the channel is
automati cally unmuted again.
4.3.2 DC protection
Each output of the power amp is constantly monitored for persistent DC voltage levels. If the 10 V threshold voltage is
exceeded at any of the out puts, the corresponding channel will be automatically switched off. A DC issue can be located in
the output stage, the driver stage, or at the input of the amplifier.
Output stage
When a persistent DC voltage is located at an output stage, the main SMPS will be permanently switched off. This will be
indicated on the display.
4.3.3 DC servo
To prevent DC offset at the speaker output, the LINUS10 amplifiers are fit ted with two DC servos (hence there are no
capacitors in the signal path).
Text position cursors are channel selection buttons
1= << and 2= >> digit selection via encoder knob.
Press encoder knob to confirm.
Use encoder knob to navigate to the store field and press it.
Defined “SNAPSHOT“ is displayed now in the snapshot library.
It includes all the defined speaker, signal routing and tuning
parameters.
Store Snapshot
Store to -S01-
Snapshot 1
Cancel >
Store >
P1:SNAPSHOT 1 #01
TIR TIR
PF-S> PF-S>
1 2