Crown Audio CTS4200A Manual Do Utilizador

Red LED, one per channel, fl ashes when 
the amplifi er output channel has stopped 
operating. Usually this means that the 
amplifi er must be serviced.

Red LED, one per channel, illuminates 
when the channel has shut down, or is very 
near shutting down, due to thermal stress 
or overload.

Green LED, one per channel, illuminates 
when the channel is initialized and ready to 
produce audio output. Indicator is off when 
the channel is set to standby mode via the 
System Architect or IQ Control Software 
packages.

Three green LEDS per channel indicate the 
amplifi er’s input and output signal levels.  
From bottom to top the LEDs are:

D. Signal: input signal is above –40 dBu.

E. –20 dB: amplifi er output is within 20 dB of 

clipping. 

F. –10 dB: amplifi er output is within 10 dB of 

clipping. 

Red LED, one per channel, illuminates 
when the channel’s output signal reaches 
the onset of audible clipping. The Clip 
Indicator also will illuminate during 
Ther mal Level Control (TLC) limiting or 
when the input compressor/limiter is 
protecting the amplifi er from input 
overload.

Front-to-rear forced airfl ow.

Blue LED indicates AC power has been 
applied and is within the safe operating 
range of the power supply.  The LED will 
fl ash when the AC line voltage is 
approxi mately 15% above or 25% below 
the nom inal rated value.

Yellow LED indicates control activity This 
LED is driven by the IQ-PIP2 module via 
the PIP2

 

interface. Note: Data indicator 

fl ashes only when the installed PIP module 
is polled for data, or is polled to see 
whether it is online.

Yellow LED illuminates when the rear-
panel Mode Switch is set to the “Bridge” 
position 

Push-on / push-off switch.