Federal Signal Corporation Personnel Alerting System, Installation And Operation Instructions Manual

Page: 78 / 84

OPTIONS
78
7.3 Troubleshooting
PROBLEM ACTION
1. NO RADIO DECODE A. Unit is not programmed to recognize that
particular code sequence (or) Signal is not
being received properly.
B. Verify programming is correct. Check the
received audio signal quality at the RX test
pin on the front of the control board.
2. LOW OUTPUT FROM
SPEAKERS Check battery voltage. Also, check signal
indicators on amplifiers during a function. If
indicators are off, remove amplifier for
service.
3. FUNCTION STOPS BEFORE
NORMAL TIME-OUT Batteries may require further charging.
Check battery voltage under load. Check
charger output.
4. LOCAL PA FEEDS BACK Lower PA volume using knob above MIC
connector.
5. LOCAL PA HAS LITTLE OR NO
OUTPUT Hold MIC close to mouth. Increase PA
volume using knob above MIC connector.
6. BATTERIES NOT HOLDING
CHARGE Check that charger fuses are intact and
check charger output.
Test batteries.
7. RELAY OUTPUT ON
MOTHERBOARD DOESN’T
OPERATE Check that the relay on the system
motherboard is operating (indicated by LED
D2). Also check fuse F1 on motherboard (20
amp slo-blow)
8. RADIO PA TAKES TOO LONG
TO TIME OUT Check radio for proper operation of squelch.
CD LED should light while carrier is present.
9. LANDLINE ACTIVATION INPUTS
DO NOT FUNCTION Verify minimum 1- second contact closure is
applied to JP14 on the motherboard.
NOTE: For additional help contact the FWS Service Dept. at (800) 524-3021.