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94MS42 Rev. B1 S/W Ver 2.06
Opening the Lamp Head
•
Unplug the unit.
•
Remove the glass and the four screws attaching the large outer reflector
section.
C DO NOT TOUCH THE REFLECTOR SURFACE WITH
YOUR HANDS.
Remove the 2 center screws from the bottom side and the 2 screws from
the top side of the lighthead.
Bottom
View
Remove the 6 screws from each side of the lamphead and remove the
two endcaps. On 8kW lampheads you can now access the trigger board
and shutter position switch that are located at the opposite end from the
shutter motor under the air plenum plate.
Shutter
The shutter is controlled by the PC board, with information from a switch
in the lamp head to provide position information. During cool-down and
exposure, the shutter is open and during warm-up and idle, the shutter is
closed.
The PC board compares the shutter position with the requested position.
The shutter motor will run until the switch position matches. The shutter
motor has a brake that is magnetically operated. Whenever the power is
released from the motor, the brake falls into a slot. There is an LED on
the PC board that lights whenever the shutter is being energized. (Look
in the PC board pin section for a diagram of the LEDs).
Bottom
View
Side
View
Top
View
13-9
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