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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 problem 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 · Replace power switch
· Bad power supply · Replace power supply
· Bad main controller · Replace main controller
Fixture powers up but
lamp does not ignite
· State/Power On parameter set to
NO
· Change parameter to YES
· Lamp temperature problems · Check error messages and follow instructions
· Lamp problems · Check error messages and follow instructions
Lamp ignited but has low
intensity/color
temperature
· Dimmer not at full output · Adjust dimmer value
· Lamp still cold
· Wait for lamp to come up with full output
temperature
· CTC or CMY filter interfering · Set color wheel or filter to home position
· Defective or old lamp · Replace lamp
· Misaligned lamp · Realign lamp
· Defective lamp wires or socket · Repair/change wiring or socket
· Defective ballast · Replace ballast
Lamp flickers or turns off
by itself
· Defective or old lamp · Replace lamp
· Temperature problems · Check error messages and follow instructions
· Defective lamp wires or socket · Repair/change wiring or socket
· Defective ballast · Replace ballast
Circuit breaker/fuse keeps
tripping/blowing
· Excessive circuit load · Check total load placed on the electrical circuit
· Short circuit along the power wires · Check for a short in the electrical wiring
Fixture does not respond
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 · Check polarity switch settings on the controller
· Loose DMX cables · Check cable connections
· Faulty DMX interface · Replace the Main board
· Faulty Display/Main board · Replace the Main board
DMX signal problems
(see Appendix > DMX
Primer)
· Non DMX cables · Use only DMX compatible cables
· Bouncing signals · Install terminator as suggested
· Long cable / low level signal
· Install an optically coupled DMX splitter right after
the fixture with the strong signal
· Too many fixtures
· Install an optically coupled DMX splitter after unit
#32 or before
· Interference from AC wires
· Keep DMX cables separated from power cables or
fluorescent/black lights
If you still experience technical problems after trying the above solutions, contact
CHAUVET® Technical Support.