Chauvet DMX-1655R, Technical Reference Manual

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DMX-1655 Manual Version 1.11 19
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General Troubleshooting
Symptom Solution(s)
Fixture has no pow er Check for pow er on Mains.
Check fixture’s fuse.
Lamps cuts off sporadically Possible bad lamp or fixture is overheating. Check the fan. Lamp may be at end of its
life.
Motor movements are jerky or
jumpy Possible bad motor driver or sensors.
Beam is very dim Clean optical system or replace lamp.
Fixture is on but there is no
movement to the audio Adjust the audio sensitivity pod.
Fixture does not respond to DMX 1. DMX LED should be on. If it is not, check the DMX connector and cables for
proper contact.
2. If the DMX LED is on and does not respond to the channel, check the address
settings and DMX polarity.
3. If you have intermittent DMX signal problems, check the pins on connectors or
on PCB of the unit or the previous one.
4. Use another DMX controller to rule out controller issues.
5. Check if the DMX cables run near or run alongside high voltage cables that may
cause damage or interference to DMX interface circuit.
6. Wrong DMX address in the unit. Set the proper address.
Some units do not respond to the
Easy Controller 1. You may have a break in the DMX cabling. Check the LED for the response of
the master/ slave mode signal.
Does not respond to sound 1. Check the unit that is not receiving DMX signal.
2. Check microphone to see if it is good by tapping the microphone
A channel is not w orking w ell 1. The stepper motor might be damaged or the cable connected to the PCB is
broken.
2. The motor’s drive IC on the PCB might be out of condition.
If pan belt is broken
1.
Turn off the main pow er.
2. Unscrew all the screw s (A) and open
the base-housing cover (B).
3. Unplug all the connect w ires (C)
from the arm to PC board and
igniter.
4. Unscrew (D) screws to release
bridge (E).
5. Unscrew the (F) screw s that connect
the axis gear (G).
6. Change a new belt (H) by going
through all connect ing w ires from
the base, and through the bridge to
the correct position.
7. Set the gear axis back to the bridge
and screw it. Note: do not press the
belt.
8. Put the belt around the axis gear and
motor gear.
9. Plug all the connect w ires (C) that
form the arm to PC board and
igniter.
10. Adjust the pan home position.
11. Screw the base-housing cover (B).