M8 Plus User Manual
14
V1.3 September 2012
www.chroma-q.com
'User' default settings
Each time the MENU button is pressed and held for 2 seconds, the unit will save that change and these ‘user defaults’ will
take precedence immediately.
These ‘User’ defaults can be reset to the ‘factory’ defaults using the method detailed above.
2.7
Troubleshooting
The LED display aids in the troubleshooting of the M8 Plus system. These indicators are located on the bottom of each unit.
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.
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 display indicator is on.
Unit set to wrong DMX address.
Check DMX address settings.
Unit does not respond to MX, DMX
display indicator is off.
Bad Cable.
No DMX at Splitter/ PSU.
Check cable and DMX run from
console.
Units run at different speeds.
Colour changer speed settings may be
different.
Cable lengths are too long.
No cable return line.
Check all colour changer 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.
Cable runs too long.
Too many units on one chain overloading
PSU.
Check voltage levels on last unit.
Should not be below 20VDC.
DMX display indicator is off on one
unit.
Colour changer not connected.
Bad cable.
Damaged transceiver IC in the colour
changer.
Check cable
Send unit back 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 bulb focus.
Replace gel strings and install IR filter.
Note:
A high percentage of problems are a direct result of poor cable and corrupt DMX control signals.
