
C
HAPTER
3. M
AINTENANCE
P
ROCEDURES
3-5
02.9654.0010
CONFIDENTIAL
23-Jan-98
3.2
Fault Isolation
3.2.1
Fault Isolation Chart
Assuming that all other system components, including lamp run and power
cables, are functional and that proper system power has been supplied:
Symptom
Probable Cause
Corrective Action
No power to DMX power
pack
•
Loose power cable connector
•
Faulty PCB or PCB connection
Intermittent power to
DMX power pack
•
Loose power cable connector
•
Faulty PCB or PCB connection
•
Loose toroidal transformer
DMX power pack does not
strike VL6/VL5Arc
luminaire lamp
•
Module jumper configuration
•
Module 12.5A fuses
•
Lamp cable connection
•
PCB connections
•
Faulty module
•
Faulty lamp cable
DMX power pack does not
allow manual intensity
control of VL5 luminaires
•
Module jumper configuration
•
Module 12.5A fuses
•
Lamp cable connection
•
PCB connections
•
Faulty module
•
Faulty lamp cable
DMX power pack
determined to be faulty
•
Faulty power supply
•
Faulty PCB assembly
VL5 1000W lamp very
bright then burns out
•
C3 module configured for 1200W
operation
VL5 1200W lamp
operating very dim
•
C3 module configured for 1000W
operation
VL5Arc 575W lamp
operating very dim
•
APS6 module configured for 400W
operation
VL6 400W lamp very
bright then burns out
•
APS6 module configured for 625W
operation
DMX power pack shuts off
unexpectantly
•
Power pack has overheated
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