Installation manual

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SIMPLEX Fault Assistance Guide RevA
29 April 2009
5.4 Strobe Line Fault
• Check EOL resistor (56k)
• If ok, swap speaker lines to a different Zone (on amp)
Test to see if the fault has followed
• IF YES – the fault could be in the field (wiring, devices)
• IF NO – the fault is likely to be in the transformers/amplifiers
NOTE:
A good way to test where a fault is located within the panel is swapping identical
components over and testing to see if the fault follows the device. This allows you
to eliminate if the fault is located on a device/card within the panel or out in the
field wiring/devices.
If a fault was present but all strobe outputs are now normal, the Red LED will be steady. This
feature is designed to assist in determining if an "Audio fault” indication on the ECP is/was an
amplifier fault/speaker line fault or a strobe line fault. To extinguish the steady red LED, switch
the ECP to Isolate and back to Manual or Auto (all software versions) or press and hold
SILENCE for 2 seconds (ECP Version 2.0 and later).
5.4.1 Strobe Output Deliberations
Having eliminated the strobe card as the Audio Line Fault there are some other considerations
to keep in mind.
Strobe lights must be wired to the A and B terminals as shown in the diagram below (Strobe
Relay Driver Module and Strobe Light Connection).
The 2k7 resistor connected to each terminal pair when the system is shipped must be removed
and connected to the end of the strobe line. Keep in mind that the maximum load on each
output is 2Amps. Loads higher then this can blow fuses