User manual

Troubleshooting 33
Troubleshooting
Problem Probable cause(s) Remedy
One or more of the fixtures
is completely dead.
No power to fixture. • Check that power is switched on and cables
are plugged in.
Primary fuse blown. • Replace fuse.
Secondary fuse(s) blown (located on
PCB inside base).
• Check fuses on PCB and replace.
Fixtures reset correctly but
all respond erratically or
not at all to the controller.
The controller is not connected. • Check connections.
XLR pin-out of the controller does not
match pin-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 (page 13). If much under
100 percent, the problem may be a bad data
link connection, poor quality or broken
cabling, missing termination, or a defective
fixture disturbing the link.
Bad data link connection • Inspect connections and cables. Correct
poor connections. Repair or replace dam-
aged 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 (unplug both
connectors and connect them directly
together) until normal operation is regained.
Have the defective fixture serviced by a
qualified technician.
XLR pin-out on fixtures does not
match (pins 2 and 3 reversed).
• Install a phase-reversing cable between the
fixtures or swap pins 2 and 3 in the fixture
that behaves erratically.
No light and
 error
message displayed.
The power supply settings do not
match local AC voltage and frequency.
• Disconnect fixture. Check settings (“AC
power” on page 7) and correct if necessary.
Lamp missing or blown • Disconnect fixture and replace lamp.
Lamp cuts out
intermittently.
Fixture is too hot. • Allow fixture to cool.
• Clean fans, air filter and air vents.
• Ensure that ambient temperature (Ta) does
not exceed 40° C (104° F).
The power supply settings do not
match local AC voltage and frequency.
• Disconnect fixture. Check settings (“AC
power” on page 7) and correct if necessary.
Table 7: Troubleshooting