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Technical Information
Legend™ 412 Series User Manual Rev. 04 -27-
Troubleshooting Guide
Symptom Cause(s) Action(s)
Product does not light up
Dimmer fader set to “0” Increase the value of the dimmer channel
All color faders set to “0” Increase the value of the color channels
All colors in Static mode are set to “0” Increase the values of the colors
No power Verify external power circuit and wiring
Faulty internal power supply
Send unit for repair
Faulty main control board
One of the LEDs does
not work
Faulty LED
Send unit for repair
Faulty LED module
Faulty LED driver
Two or more LEDs do
not work on a single
module
Faulty LED module
Send unit for repair
Faulty LED driver
The wrong LEDs light up
when using DMX
Wrong personality Change the personality
Wrong DMX address Change the DMX address
Circuit breaker/fuse
keeps tripping/blowing
Excessive circuit load Reduce total load placed on the electrical circuit
Short circuit along the power wires Check electrical wiring
Unit does not power up
No power Check for voltage on outlet
Loose or damaged power cord Check power cord
Blown fuse Replace fuse
Faulty internal power supply Send unit for repair
Unit does not respond to
wired DMX or responds
erratically
Wrong DMX addressing Check unit addressing
Damaged DMX cables Check DMX cables
Wrong polarity on the controller Check polarity switch settings on the controller
Loose DMX cables Check cable connections
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 before a
long section of cable or right after the unit with
the strong signal
Too many units
Install an optically coupled DMX splitter after unit
#32
Interference from AC wires
Keep DMX cables separated from power cables
or fluorescent/black lights
Faulty Display/Main/DMX interface board Send unit for repair
Faulty Display/Main board Send unit for repair
If you still experience technical problems after trying the above solutions or if you
need to send the product for repair, contact CHAUVET® Technical Support.