PAL 1200, PAL 1200 E, PAL 1200 FX User Manual
35
a p p e n d i x e
T R O U B L E S H O O T I N G G U I D E
Problem
Probable cause(s)
Suggested remedy
None of the PALs respond to the
controller.
The controller is disconnected from the data
link.
•
Connect controller.
Use of incorrect cable between the controller
and the first PAL on the data link.
•
If using a DMX controller with standard 5 pin out-
put socket, remember to use a 5 to 3 pin adapter
cable that reverses pins 2 and 3, between the
controller and the first PAL on the data link.
One or more of the PALs does
not respond to the controller or
responds erratically.
Bad data link connection.
•
Check connections/cables in the data link and
correct accordingly.
Data link not terminated with
termination plug.
•
Insert termination plug in the last light on the data
link.
Incorrect addressing of the PALs.
•
Ensure that all lights are addressed in compli-
ance with the controller configuration.
PALs not powered on.
•
Power on PALs.
PALs have failed in protocol auto-detection.
•
Switch off the PALs and then back on again. In
general, switch on the controller before the PALs.
One of the lights is defective and disturbs the
data transmission on the link.
•
By-pass one light at a time until normal operation
is regained. Do this by unplugging the XLR in-
and-out connectors and then connect these
directly together.
Special DMX protocol (dPr2) option set incor-
rectly.
•
Navigate in control menu to SPEC > dPr2 and
toggle the option to OFF unless using an MA
Scancommander.
Fuse, F201, on receiver board blown.
•
Replace fuse (see section 8).
No light emission and “LErr”
appears on the display.
The lamp will not strike due to insufficient
mains voltage.
•
Measure mains voltage and check against ballast
and transformer tappings. Correct tappings if
necessary.
There is no lamp in the fixture.
•
Install a lamp.
Fixture appears to be completely
dead (no reset when switching
on).
Mains fuse blown.
•
Replace mains fuse.
PCB fuse(s) blown.
•
Replace PCB fuse(s).
Lamp is cutting out intermittently. Ambient temperature is too high.
•
Reduce ambient temperature.
Fans are running on reduced speed (desk
controlled).
•
Switch to high fan speed via controller.
Reduced air flow due to fan clogged by dirt
and dust.
•
Clean fan.
Incorrect ballast and transformer tappings.
•
Measure mains voltage and check against ballast
and transformer tappings. Correct tapping if nec-
essary.