Martin Mania PR1 User Manual page 13

3 Lift the gobo holder out of the fixture.
4 The gobo/texture glass is held in place by a steel spring. Remove the
spring to remove the gobo/texture glass that is presently installed.
Front lens side
5 Install the replacement gobo or textured glass. Note that the coated or
textured side should face the lamp.
6 Replace the gobo holder, and screw the access hatch closed, before
applying power.
Operation
Lamp side
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