Figure 72 Qx-Mini Board Leds - Mircom QX-mini Installation And Operation Manual

10.2.1 Troubleshooting using LEDs
The QX-mini board uses LEDs to indicate activity and trouble events. The following
procedures allow the operator to quickly diagnose board health or eliminate the most common
system issues.
Remote Mic
Trouble
Relay 1 Relay 2
Trouble Active
Relay 1
Relay 2
Active
Trouble
Power
CPU
Battery
FAIL
Trouble

Figure 72 QX-mini board LEDs

1. For Common Trouble, look at QX-mini Main Display for indication of
2. Examine QX-mini board for Trouble LEDs.
3. Examine QX-mini board for COMMS LEDs.
4. Check QX-mini Main Display Connection (no dedicated LED).
5. Confirm Configurator Software matches Hardware configuration (i.e. missing amplifier
board).
6. Check Panel Address DIP Switch settings.
122
RS485 OUT
Receiving
RS485 OUT
AC
Trouble
Trouble
Common
Alarm
Trouble
RS485 IN
Trouble
Trouble
Ground
Main Mic
Buzzer
Fault
Trouble
• AC Power
• Ground Fault
• CPU Fail
• Zone(s) Trouble
CPU
Transmiting
RS485 IN
Receiving
SLC
Synch
Aux 24V
Input 1
For (Future
Use)
System Checkout
Synch
Output
NAC 1
Trouble
NAC 1
NAC 2
ON
ON
Synch
Input 2
OUTPUT 1 OUTPUT 2
Synch Output
Trouble
NAC 2
Trouble