Chapter 5: Maintaining and Servicing the INTEGRITY
41
Integrity Lightbar
Troubleshooting the Lightbar
This section provides troubleshooting assistance for common problems. If you have any questions left
unanswered, call the Federal Signal Service Department at 1-800-433-9132, 7 a.m. to 5 p.m., Monday
through Friday (CT).
Table 5.1 Troubleshooting tips
Problem
Corrective Action
The lightbar does not light
✔
Check that the lightbar’s red power line (+BAT) and the black
ground- power line (–GND) are properly connected to a good,
fully charged 12-volt battery. Check the 40 A fuse.
✔
Ensure that the ground connection from the lightbar controller to
the aluminum extrusion is good.
✔
Check that the CAT5 cable is connected to the Serial Interface
Module (J1) and there are no damaged pins in the sockets.
✔
Try a new CAT5 cable.
✔
Check the connections on the Serial Interface Module:
1. the black wire and the black/white wire are connected to
ground (–GND)
2. the white wire is connected to 12 Vdc. Check the 1 A fuse.
3. a MODE wire has 12 Vdc
✔
Check the position of Switch 1 on SW-2 in the Serial Interface
Module. If Switch 1 is down (ON), ensure that the ENABLE
control wires (green/white and orange/black) have 12 Vdc
applied.
✔
Check the positions of the DIP switches in the Interface Module.
✔
Check the fuses on the mainbar controller.
✔
Reset the controller (page 39).
An LED module does not light
✔
Swap the LED board with good board to see if the board is bad.
✔
Check the connections of the cable that goes from the lightbar
controller to the LED ROC board.
✔
If it is a rear module, check the SignalMaster connections.
✔
Reset the controller (page 39).
Half of an LED module does not light
✔
Replace the ROC board that the LED is on.
✔
Reset the controller (page 39).
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Summary of Contents for Integrity44
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