Troubleshooting
23
T
ROUBLESHOOTING
A
* To test the data link with an ohm meter, disconnect the link from the controller
and measure the resistance across pins 2 and 3 of the XLR male plug. The reading
should be around 120 ohms. Readings from 400 - 20,000 ohms indicate the data
link is not terminated. Infinite resistance indicates a bad connection, broken wire, or
a defective fixture. Very low readings indicate a short circuit in the link or a
defective fixture.
problem
probable cause(s)
suggested remedy
None of the fixtures
respond to the controller.
The controller is discon-
nected from the data link.
Connect controller.
Blackout or standby mode
selected.
Press blackout button.
Some fixtures do not
respond, respond errati-
cally, or continuously reset.
Bad data link connection.
Check data link connec-
tions/cables and correct
accordingly.*
DMX signal polarity
reversed.
Swap pins 2 and 3. See
section 2.
DMX signal reflection.
Insert termination plug in
the last light on the link.
Incorrect addressing of fix-
tures.
Check addresses.
Fixtures not on.
Turn on fixtures.
Fixtures do not execute pro-
gramming on one or more
channels.
Fader control is overriding
programming.
Deactivate the FIXTURE
button.
No light from some or all fix-
tures.
The scenes do not contain
‘Lamp On’ instructions for
fixtures with remote lamp
on/off.
Make sure the “Lamp On”
command is saved in at
least one scene.
One or more bank names
have disappeared
Bank name or names have
been deleted by going into
EDIT mode, selecting
SHOW and then pressing
ENTER without giving a
new name to the bank.
Rename banks (see “Giving
names to banks” on page
15)
Summary of Contents for Freekie
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