User manual
Universal User Manual  13   V1.4 September 2012 
www.chroma
-
q.com
Bracket Position  Standoff Position  Fixture 
3  Inside  Source 4 
A  Inside  Source 4 PAR 
C  Outside  Euro 215mm 
B  Outside  Silhouette 2K 
A  Outside  Various PAR 64 
1  Outside  Strand 2K 
Note: The Chroma-Q Universal should always be used with the safety wire provided. 
2.6  Troubleshooting 
The first vertical bar indicates that there is power (24VDC). 
The second vertical bar indicates that there is data (DMX). 
The horizontal bars indicate the data (DMX) signal level. 
Note:
Note:Note:
Note: The signal level changes during normal operation of the unit. 1st bar = 
25%, 2nd bar = 50% and 3rd bar = 75% 
Symptom  Possible Cause  Solution 
Unit does not respond to DMX control, 
but DMX indicator is on. 
Unit set to a wrong or different DMX 
address. 
Check DMX address settings. 
Unit does not respond to DMX, DMX 
indicator is off. 
Bad cable. No DMX present at 
Splitter/PSU unit. 
Check cable and DMX run from 
console. 
Units run at different speeds.  Scroller speed settings may be 
different. Cable lengths are too long. 
No cable return line. 
Check all scroller speed settings. 
Check the cable length and 
configuration. 
Ensure there is a cable return line in 
the system. 
Units have dim display indicators and 
run slowly 
Overloading of colour changer chain or 
cable runs too long. PSU overloaded. 
Check voltage levels on last unit. 
Should not be below 20VDC. 
DMX display indicator is off on one 
unit. 
Bad cable or blown transceiver IC in 
the scroller. 
Check cable or send unit for repair. 
Display indicators appear ok but gel 
string does not move. 
Mechanical (or electrical) failure in the 
unit. 
Turn unit on and off. Return unit for 
repair. 
Gel burns too quickly.  Fans have failed or are too slow. Poorly 
optimised lamp focus in fixture. 
IR filter medium not fitted. 
Check fans are operating. Optimise 
lamp focus. Replace gel strings & 
install IR filter. 










