Troubleshooting 4
© 2000 Martin Professional A/S, Denmark
Martin University MAC 2000 Service Seminar
Contaminated lamp: Oils from your fingers or other sources will burn into the glass
envelope, weaking it and reducing performance.
Defective ballast: Defective ballast can provide too much power to the lamp and result in
shorter lamp life.
LAMP CUTS OUT/ FIXTURE OVERHEATING (HTER, BTER)
Incorrect power setting: See the user manual for proper setting information.
Dust and dirt reducing air-flow: Clean the fixture, and check the air flow filters in the
head.
Bad fan or connection: Both fans in the head must be operating to provide adequate
cooling. Check that the fans are connected and working.
Defective thermo-switch: The thermo-switches - there are two - cut power to the lamp if
the fixture overheats. A faulty thermo-switch may cause the lamp to cut out at too low a
temperature. Never bypass the thermo-switches!
COLOR WHEEL
COLOR WHEEL LOSES STEP
Defective motor or motor driver. Check motor, cables, and driver accordingly.
COLOR WHEEL ROTATES SPONTANEOUSLY
Improper adjustment: This can occur when the fixture reaches operating temperature if
there is too much distance between the wheel’s magnet and the sensor IC. When the wheels
are properly aligned and in the adjustment position, the sensor must be parallel with the
magnet and directly over it at a distance of no more than 1.5 mm (1/16 in).
COLOR WHEEL TIME OUT (COER)
Improper alignment: The sensor may not be able to detect the indexing magnet if the
wheel is out of alignment. Refer to the color wheel adjustment procedure. If the color
wheel fails to reset when it is properly aligned, the sensor IC may be too far from the
indexing magnet. The maximum distance between the sensor and the magnet is 1.5 mm.
GOBOS AND EFFECTS
WHEELS LOSE STEP
Defective motor or motor driver. Check motor, cables, and driver.
WHEEL ROTATES SPONTANEOUSLY
Improper adjustment: This can occur when the fixture reaches operating temperature if
there is too much distance between the wheel’s magnet and the sensor IC. When the wheel
is properly aligned and in the adjustment position, the sensor must be parallel to the
magnet and directly over it at a distance of no more than 1.5 mm.
TIME OUT (G1ER, G2ER, R1ER, R2ER, EFER, REER)
Improper alignment: The sensor may not be able to detect the indexing magnet if the
wheel is out of alignment. If the wheel fails to reset when properly aligned, or if the
rotating-gobo or effect indexing fails, the sensor IC may be too far from the indexing
magnet. The maximum distance between the sensor and the magnet is 1.5 mm.
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