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7 GREEN - POWER LED. This led is ON when the system is connected
to the AC power source and the main on/off switch is in position 1.
8 GREEN - SIGNAL LED. This led is ON when the audio input signal
is superior to -20 dB. When there is no input signal the led is fl ashing.
9 YELLOW - STATUS LED. This LED is fl ashing during the bootstrap pro-
cedure and in case of communication problems with the DSP processor.
10 RED/ORANGE - LIMITER LED. This led is ON when the limiter
circuit is active to prevent output distortion or damage of the speaker:
ORANGE - Soft limiter circuit. When the LED is fl ashing ORANGE one
of the power amplifi ers reaches the maximum output for short perio-
ds of time and the working condition can be considered normal. RED
- Hard limiter. When the LED is fl ashing RED (following the signal)
one of the power amplifi ers reaches the maximum output for longer
periods of time. When the LED is blinking RED one of the RMS limiter
circuit is active in order to prevent damage to one of the transducers
or power amplifi ers.
Always avoid operating conditions where the System works for
long periods of time with the RED LED fl ashing or blinking.
11 DATA INPUT. This port is used to update DSP fi rmware, DSP
presets, microprocessor fi rmware.
TTL33-A/TTL31-A
INPUT PANEL LEDS
The input panel presents 4 system LEDs:
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