Technical Information
Legend 300E Spot User Manual Rev. 01g -27-
Troubleshooting Guide
Symptom Cause(s) Action(s)
Fixture does not power up
· No power on outlet · Repair outlet pr oblem or use another outlet
· Blown fuse · Replace blown fuse with same type and rating
fuse
· Bad power cord/plug · Repair or replace power cord/plug
· Bad power switch · Replac e power switch
· Bad power supply · Replac e power supply
· Bad main controller · R eplace m ain controller
Fixture powers up but
lamp does not ignite
· State/Power On paramet er set to
NO · Change parameter to YES
· Lamp temperature probl ems · Check error messages and f ollow instructions
· Lamp problems · Check error m ess ages and follow instructi ons
Lamp ignited but has l ow
intensity/color
temperature
· Dimmer not at full output · Adjust dimmer value
· Lamp still cold · Wait for lam p to come up with ful l output
temperature
· CTC or CMY filter interf ering · Set color wheel or f ilter to home positi on
· Defecti v e o r old lamp · Replace lamp
· Misaligned lamp · Realign l am p
· Defecti v e l amp wires or socket · Repair/change wiring or s oc k et
· Defecti v e b allast · Replace ballast
Lamp flickers or turns off
by itself
· Defective or old lamp · Replace lamp
· Temperature problems · Check error m essages and follow ins tructions
· Defecti v e l amp wires or socket · Repair/change wiring or s oc k et
· Defecti v e b allast · Replace ballast
Circuit breaker/fuse keeps
tripping/blowing
· Excessive circuit load · Check total load placed on the electrical circ uit
· Short circuit along th e power wires · Check for a short in the electrical wiri ng
Fixture does not respon d
to DMX when nearby
fixtures on the same
universe do
· Wrong DMX addressing · Check DMX mode and starting DMX address
· Damaged DMX cables · Check DMX cables
· Wrong polarity on the controller · C heck polarity switch s ettings on the controll er
· Loose DMX cables · Check cable connections
· Faulty D MX interf ace · Replace th e Main board
· Faulty Displ ay/Main board · Replace t he Main board
DMX signal problems
(see Appendix > DMX
Primer)
· Non DMX c ables · Use only DMX compatible cabl es
· Bouncing signals · Install t erminator as suggested
· Long cable / low level si gnal · Install an opticall y coupled DMX splitter right after
the fixture with the strong signal
· Too many fixtures · Install an optically coupl ed D M X spl itt er after unit
#32 or before
· Interference from AC wir es · Keep DMX cables sep arated from power cab les or
fluoresc ent/black lights
If you still experience technical problems aft er trying the above solutions, contact
CHAUVET® Technical Support.