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to be the reference fixture. On the other fixtures, select SERV→CAL→P OF and press [Enter]. Adjust
the offset as necessary to align the beam with the reference beam. Press [Enter] to save the setting.
4. Tilt calibration is easiest when multiple fixtures are arranged horizontally. To calibrate, set pan positions
for easy side-by-side comparison and set each fixture to the same tilt DMX value. Select one fixture to
be the reference fixture. On the other fixtures, select SERV→CAL→T OF and press [Enter]. Adjust the
offset as necessary to align the beam with the reference beam. Press [Enter] to save the setting.
Cleaning
Regular cleaning is essential in order to obtain optimum fixture life and performance. Buildup of dust, dirt,
smoke particles, fog fluid residues, etc. degrades the fixture's light output and cooling ability.
Cleaning schedules for lighting fixtures vary greatly depending on the operating environment. It is therefore
impossible to specify precise cleaning intervals for the MAC 350 Entour. Environmental factors that may
result in a need for frequent cleaning include:
• Use of smoke or fog machines.
• High airflow rates (near air conditioning vents, for example).
• Presence of cigarette smoke.
• Airborne dust (from stage effects, building structures and fittings or the natural environment at outdoor
events, for example).
If one or more of these factors is present, inspect fixtures within their first 100 hours of operation to see
whether cleaning is necessary. Check again at frequent intervals. This procedure will allow you to assess
cleaning requirements in your particular situation. If in doubt, consult your Martin dealer about a suitable
maintenance schedule.
Use care when cleaning optical components and work in a clean, well lit area. The coated surfaces are
fragile and easily scratched. Do not use solvents that can damage plastic or painted surfaces.
WARNING! Disconnect from power and allow to cool before cleaning.
To clean the fixture:
1. Disconnect the fixture from power and allow it to cool for at least 20 minutes.
2. Remove the head covers.
3. Vacuum or gently blow away dust and loose particles with compressed air.
4. Remove dust from the head with a soft brush, cotton swab, vacuum, or compressed air.
5. Carefully clean the optical components. Remove smoke and other residues with cotton swabs or
unscented tissues moistened with isopropyl alcohol. A commercial glass cleaner may be used, but
residues must be removed with distilled water. Clean with a slow circular motion from center to edge.
Dry with a clean, soft and lint-free cloth or compressed air. Remove stuck particles with an unscented
tissue or cotton swab moistened with glass cleaner or distilled water. Do not rub the surface: lift the
particles off with a soft repeated press.
6. Reinstall all covers before applying power
Lubrication
In general, the MAC 350 Entour does not require lubrication. However, depending on use conditions, the
bushes and slider bars for the focus car may eventually require reapplication of the long-lasting teflon-based
grease applied at the factory. Noise when operating the focus is a sign that lubrication is required. This
operation can be carried out by a Martin service partner if necessary.
Do not lubricate plastic bushes.
Fuse replacement
WARNING! Disconnect from power before opening covers. Replace fuses with ones of the same
type and rating only. Never bypass or bridge a fuse.
The MAC 350 Entour™ is protected by two 10 AT (slow-blow) mains fuses located in fuseholders next to the
power cable entry (see Figure 1 on page 8).
To replace a fuse:
1. Isolate the fixture from power.
2. Use a flathead screwdriver to open the fuseholders and remove the fuses for testing or replacement.
Service and maintenance
29
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