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LICHTTECHNIK
6. Trouble Shooting
6.1 Does supply voltage correspond with ballast required voltage?
Guide
6.2 Ensure correct lamp is fitted
6.3 If lamp does not strike, the lamp heads safety loop may be broken - check if lens
door is fully shut and safety switches are activated.
6.4 Is there a good power supply to the ballast?
6.5 Is ballast main circuit breaker in “on” position?
6.6 If a ballast / head to ballast cable / luminaire system does not work then all three
units should be considered faulty.
Do not try a suspected luminaire with another ballast - you may end up with two faulty
ballasts!
To check if a ballast is good, run it with a known good luminaire and cable.
6.6 If a ballast cuts out after running a few minutes there are a number of possible
failures:
The lamp itself may be faulty or at the end of its life.
The thermal cutout in the ballast may have activated (red LED "Temp") due to
extreme ambient temperature or exposure to direct sunlight in hot summer
conditions. The ventilation might be restricted. In such a case the ballast can be used
after it had cooled down and the condition causing the overheating is removed.
The "Temp" LED indicates overtemperature before the EB is switched off by the
internal thermal switches.
Earth leakage of luminaires or head to ballast cables will also cause the protection
circuit to be activated. Test the module with a known good luminaire. If cables are
suspect, they should be exchanged with known good cables.
If a ballast is found to be faulty ideally it should be returned together with the luminaire
and cable to the ARRI-service location for examination.
Summary of Contents for EB 4000
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