Code 3 MX 7000 - Manual (Page 27)

PROBLEM POSSIBLE CAUSE SOLUTION
Lighthead oscillates when selecting Lighthead not sensing position.
Alley and/or Takedown modes.
Check the following:
Bad wiring harness
Replace wiring harness
Bad connection Check connections (Figure 10 & 11)
Failed position sensor Replace lighthead assembly
Lighthead doesn’t move when Alley Failed lighthead assembly Replace lighthead assembly
and/or Takedown mode is selected,
but moves in Intersection mode
Lighthead does not move when any Bad motor wire to module Check connections / Replace wire
mode is selected. Failed light bar wire harness Check light bar wiring harness
No power to control module Check +12VDC switching control
Failed lighthead assembly Replace lighthead assembly
Failed control module Replace control module
Lighthead operates properly, Lamp burnt out Replace lamp (50W maximum)
but lamp is not on Bad lamp wire to module Check connections / Replace wire
Driver side lighthead oscillates and Driver side lighthead not sensing
Passenger side lighthead does not
Check for the following:
move when Takedown is selected. Bad wiring harness Replace wiring harness
Note: In Takedown mode,Passenger Bad wiring harness connection Check connections (Figure 10 & 11)
side lighthead will not move until Failed position sensor Replace lighthead assembly
Driver side lighthead has located
Intersection mode selected, Driver No problem Normal operation, Intersection mode
and Passenger side Alley modes overrides Alley mode.
do not function
Takedown mode selected, no No problem Normal operation, Takedown mode
other modes operational overrides all other modes
Troubleshooting
All Excalibur strobe lightbars are thoroughly tested prior to shipment. However, should you encounter a
problem during installation or during the life of the product, follow the guide below for information on repair and
troubleshooting. Additional information may be obtained from the factory technical help line at 314-426-2700
ext. 2131.
NO STROBE LIGHTS IN THE LIGHTBAR OPERATE - Check the following: 1) +12 VDC source connection
for the control switch box and any in line fuse 2) Connection of the RED and RED/BLK wire at the control
switch box 3) Check the 15 Amp ATO fuse on each power supply. If the fuse is blown, replace it with another
15 Amp fuse and test the lightbar. If the fuse continues to blow, return the power supply only, NOT the entire
lightbar, to the factory for service. For instructions on power supply removal see the " Electronics Module
Removal " section of this manual.
Do not replace the fuse with one of a higher rating. This will damage the power supply and void all
warranties.
WARNING!
!
ONE STROBE LIGHT MODULE DOES NOT OPERATE - Check the defective strobe light module by
switching it with a module that is known to be working.
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