14
Troubleshooting
No Light
This troubleshooting guide is meant to help solve simple problems. If a problem occurs, carry out the steps
below in sequence until a solution is found. Once the unit operates properly, do not carry out following
steps.If the light effect does not operate properly, refer servicing to a technician.
Response: Suspect three potential problem areas: the power supply, the lamp, the fuse.
1.
Power supply. Check that the unit is plugged into an appropriate power supply.
2.
The LEDs. Return the LED Tunnel Flower to your Showtec dealer.
3.
The fuse. Replace the fuse. See page 13 for replacing the fuse.
No Response to DMX
Response: Suspect the DMX cable or connectors, a controller malfunction, a light effect DMX card
malfunction.
1.
Check the DMX cable: Unplug the unit; change the DMX cable; then reconnect to electrical power.
Try your DMX control again.
2.
Determine whether the controller or light effect is at fault. Does the controller operate properly with
Other DMX products ? If not, take the controller in for repair. If so, take the DMX cable and the light
effect to a qualified technician.
Problem
Probable cause(s)
Remedy
One or more
fixtures are
completely dead.
No power to the fixture
· Check that power is switched on
and cables are plugged in.
Primary fuse blown.
· Replace fuse.
Fixtures reset
correctly, but all
respond
erratically or not
at all to the
controller.
The controller is not connected.
· Connect controller.
3-pin XLR Out of the controller
does not match XLR Out of the first
fixture on the link (i.e. signal is
reversed).
· Install a phase reversing cable
between the controller and the first
fixture on the link.
Fixtures reset
correctly, but
some respond
erratically or not
at all to the
controller.
Poor data quality
· Check data quality. If much lower
than 100 percent, the problem may
be a bad data link connection, poor
quality or broken cables, missing
termination plug, or a defective
fixture disturbing the link.
Bad data link connection
· Inspect connections and cables.
Correct poor connections. Repair or
replace damaged cables.
Data link not terminated with 120
Ohm termination plug.
· Insert termination plug in output jack
of the last fixture on the link.
Incorrect addressing of the fixtures. · Check address setting.
One of the fixtures is defective and
disturbs data transmission on the
link.
· Bypass one fixture at a time until
normal operation is regained: unplug
both connectors and connect them
directly together.
· Have the defective fixture serviced
by a qualified technician.
3-pin XLR Out on the fixtures does
not match (pins 2 and 3 reversed).
· Install a phase-reversing cable
between the fixtures or swap pin 2
and 3 in the fixture, that behaves
erratically.
No light
The power supply settings do not
match local AC voltage and
frequency.
· Disconnect fixture. Check settings
and correct if necessary.
