CE Series Power Amplifiers
4 Advanced Features
and Options
4.2.2 Fault Monitoring
The Fault
When using this circuit, the LED will glow under any of these conditions:
•The amplifier has just been turned on and is still in the
•The heatsinks are too hot.
•The transformer thermal protection is activated.
•The amplifier output wires have developed a short circuit.
•The limiter has been overdriven by > 6 dB for a long time.
•The amplifier output stage has stopped operating. Refer the unit to an authorized Crown Service Cen- ter.
•The amplifier is turned off.
If you choose to design your own circuit to interface this signal to your system, note that this RJ jack is polarity sensitive. Pin 2 must be grounded, and Pin 5 must be supplied with a positive voltage
The mating connector for the CE Series TX
Figure 4.3 Location of Fault Jack
Figure 4.4 Fault Status LED Circuitry
Figure 4.5
Operation Manual | page 17 |