Martin MAC 250 ENTOUR Manual de usuario descargar pdf (Pagina 29)

Service 29

power and allow it to cool for at least 45 minutes before proceeding. Wear safety goggles

to protect your eyes.

1 Locate the lamp access cover at the back of the fixture head and remove the Phillips screws.

2 Pull out the lamp socket.

3 If changing the lamp, remove the old lamp from the socket.

4 Holding the new lamp by its ceramic base (do not touch the glass), align the small pin on the lamp with the

small hole in the socket and insert the lamp squarely. Make sure that the 4 small projections on the base

contact the face of the socket.

5 Clean the glass bulb with the cloth supplied with the lamp, particularly if your fingers touched the glass. A

clean, lint-free cloth wetted with alcohol may also be used.

6 Insert the lamp into the fixture with as little twist in the lamp wires as possible.

7 Align the screw holes and fasten the lamp access plate with 2 screws.

8 If replacing the lamp, reset the lamp hour and lamp strike counters as described on page 12.

9 Strike the lamp (after setup is complete) and adjust it for optimum performance by turning the 3 adjustment

screws one at a time until the brightest part of the beam is centered.

10 Adjust the lamp position if necessary by turning the 3 lamp adjustment screws to the middle of their range

using a 3 mm Allen wrench.

Cleaning

OPTICAL COMPONENTS

Use care when cleaning optical components. The surface on dichroic filters is achieved by means of special

multi-layer coatings and even small scratches may be visible. Residues from cleaning fluids can bake onto

components and ruin them.

1 Allow the components to cool completely.

2 Wash dirty lenses and filters with isopropyl alcohol. A generous amount of regular glass cleaner may also

be used, but no residues may remain.

3 Rinse with distilled water. Mixing the water with a small amount of wetting agent such as Kodak Photoflo will

help prevent streaking and spotting.

4 Dry with a clean, soft and lint-free cloth or blow dry with compressed air.

Figure 5: Lamp installation

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Martin MAC 250 ENTOUR Manual de usuario Pagina 29