Martin Exterior 400 User Manual page 11

Gobo installation
Wear clean, lint-free cotton gloves while handling optical parts.
6
5
4
(gobo wheel seen from front of module
facing towards front cover)
*Gobos shown installed in the gobo wheel are examples only – filters and gobos must be ordered separately.
To install a rotating gobo in the Exterior 400 Image Projector effects module:
1. See Figure 4. Refer to the diagram for gobo position numbers. The gobo wheel is shown from the front
(the side facing the front of the effects module, towards the front cover). It will help you identify gobo
positions if you note the position of the small magnet A on the gobo wheel opposite the open slot. Rotate
the gobo wheel if necessary for access to the different gobo positions.
2. If a gobo has already been installed, lift it away from the gobo wheel slightly to release it from its cutout
in the gobo wheel, then hold it by the edges and slide it outwards.
3. To insert a gobo, slide the goboholder B onto the gobo wheel C, working it in so that the gobo retaining
clips D engage in the slot around the edge of the goboholder. If necessary, lever the clips away from the
wheel slightly with a small screwdriver or similar tool. Push the goboholder in until it snaps into place in
its cutout in the gobo wheel.
Replacing gobos in goboholders
Gobos in rotating goboholders are interchangeable and can be replaced
with gobos either supplied or specifically approved by Martin.
See Figure 5. Gobos are held in rotating holders by a retention spring.
Note that the retention spring can only be used with gobos maximum 3
mm thick. Thicker gobos can be glued to the holder with a UV adhesive or
Loctite 330 Multibond with Activator.
Important! A gobo can fall out of its holder if the spring is inserted the wrong
way round.
To replace a gobo:
1. Put on clean, lint-free gloves to protect your fingers and to avoid
contaminating optical components with grease and dirt.
2. Remove the goboholder from the gobo wheel as described in the
previous section.
3. With a small screwdriver or similar, unhook the end of the gobo spring
furthest from the gobo and pull out the spring. Drop the gobo out of the
holder.
3
A
Gobo positions*
Figure 4: Installing a gobo
Installing color filters and gobos
B
1
2
D
C
Figure 5: Rotating
goboholder
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