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Spectral 300 Q4 MKIII
Problem
Probable cause(s)
No power to the fixture
One or more
fixtures do not
function at all
Internal fuse blown
Fixtures reset
The controller is not connected
correctly, but all
3-pin XLR Out of the controller
respond
does not match XLR In of the first
erratically or not
fixture on the link (i.e. signal is
at all to the
reversed)
controller
Poor data quality
Bad data link connection
Fixtures reset
correctly, but
Data link not terminated with 120
some respond
Ohm termination plug
erratically or not
Incorrect addressing of the fixtures
at all to the
controller
One of the fixtures is defective and
disturbs data transmission on the
link
3-pin XLR Out on the fixtures does
not match (pins 2 and 3 reversed)
Fixture is too hot
No light or LEDs
cut out
LEDs damaged
intermittently
The power supply settings do not
match local AC voltage and
frequency
Ordercode: 43561
Solution
●
Check if power is switched on
and cables are plugged in
●
Return the Spectral to your
Showtec dealer
●
Connect controller
●
Install a phase reversing cable
between the controller and the
first fixture on the link
●
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
●
Inspect connections and cables.
Correct poor connections. Repair
or replace damaged cables
●
Insert termination plug in output
jack of the last fixture on the link
●
Check address setting
●
Bypass one fixture at a time until
normal operation is restored:
unplug both connectors and
connect them directly together.
●
Have the defective fixture
serviced by a qualified technician
●
Install a phase-reversing cable
between the fixtures or swap pin 2
and 3 in the fixture that behaves
erratically
●
Allow the fixture to cool down
●
Make sure the front lens is not
blocked
●
Turn up the air conditioning
●
Disconnect the fixture and return
it to your dealer
●
Disconnect fixture. Check settings
and correct if necessary
24
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