Barcode Reader - Handheld Barcode Scanner User Manual
Table Of Contents

        Appendix 
Q-Scan 250 & Q-Roll 250 User Manual  16    2005-11-15/13:24 
General Troubleshooting 
Applies to 
Symptom  Solution(s) 
Lights 
Foggers 
& Snow  Controllers 
Dimmers
& Chaser 
Auto shut off  Check fan thermal switch reset 
 
Beam is very dim or not 
bright 
Clean optical system or replace lamp 
Check 220/110v switch for proper setting 
 
Breaker/Fuse keeps 
blowing 
Check total load placed on device 
 
Chase is too slow  Check users manual for speed adjustment 
 
   
Device has no power  Check for power on Mains. 
Check device’s fuse. (internal and/or external) 
 
   
Fixture is not responding  Check DMX Dip switch settings for correct addressing 
Check DMX cables 
Check polarity switch settings 
 
Fixture is on but there is 
no movement to the 
audio 
Make sure you have the correct audio mode on the control 
switches. If audio provided via ¼” jack, make sure a live audio 
signal exists 
Adjust sound sensitivity knob 
 
   
Lamps cuts off 
sporadically 
Possible bad lamp or fixture is overheating. 
Lamp may be at end of its life. 
 
Light will not come on 
after power failure 
Some discharge lamps require a cooling off period before the 
electronics in the fixture can kick start it again, wait 5 to 10 
minutes before powering up 
 
Loss of signal  Use only DMX cables 
Install terminator 
Note: Keep DMX cables separated from power cables or black 
lights. 
       
Motor movements are 
jerky or jumpy 
Possible bad motor driver or sensors 
Check polarity switch on controller 
 
 
Moves slow  Check 220/110v switch for proper setting 
 
No flash  Re-install bulb, may have shifted in shipping 
 
No light output  Check slip ring & brushes for contact 
Install bulb 
Call service technician 
 
Relay will not work  Check reset switch 
Check cable connections 
 
Remote does not work  Make sure connector is firmly connected to device 
   
Stand alone mode  All CHAUVET lighting fixtures featuring stand-alone functions 
do not require additional settings, simply power the fixture and 
it will automatically enter into this mode 
 
Unit wobbles when 
rotating 
Check for damages possibly incurred during shipping 
 










