Service And Maintenance; Replacing The Internal Dimmer; Tilt Lock - Martin MAC TW1 User Manual

Service and maintenance

DANGER! Read "Safety Information" on page 3 before servicing the MAC TW1. Disconnect
the fixture from power and allow to cool for 45 minutes before handling or removing any
cover. Refer any service operation not described here to a qualified service technician.
Important! Excessive dust, smoke fluid, and particle buildup degrades performance,
causes overheating and will damage the fixture. Damage caused by inadequate cleaning or
maintenance is not covered by the product warranty.
As with electronic components in general, the MAC TW1's PCBs are sensitive to ESD
(electrostatic discharge). The IGBT dimmer is particularly sensitive. Take precautions to
avoid ESD damage before opening the fixture. Service electronic components at a
static-safe workstation only.
It is Martin policy to use the best-quality materials and coatings available to ensure optimum performance
and the longest possible component lifetimes. However, optical components in all lighting fixtures are
subject to wear and tear over the life of the fixture, resulting in gradual changes in color rendition of dichroic
filters or the specular properties of reflectors, for example.
The extent of wear and tear depends heavily on operating conditions, maintenance and environment, so it is
impossible to specify precise lifetimes for optical components. However, you will eventually need to replace
optical components if their characteristics are affected by wear and tear after an extended period of use and
if you require fixtures to perform within very precise optical and color parameters.
To maximize the life of the MAC TW1 and protect the investment it represents, clean the fixture regularly –
especially the cooling systems – following the guidelines in this section.

Replacing the internal dimmer

MAC TW1 fixtures are available in multi-voltage IGBT internal dimmer and 80 V internal dimmer models.
The two internal dimmer types are also available as accessories. Removing one dimmer type and installing
another is a quick and easy operation. This task is explained in an Installation Note supplied with dimmer
units and included at the back of this user manual (see "MAC TW1 Internal Dimmer Installation Note" on
page 40).

Tilt lock

Important! Release the tilt lock before operating the fixture.
The tilt position of the head can be locked for transportation and
service with the tilt lock. To lock or unlock the head, move the
lock knob to the correct position as shown in Figure 8.
Service and maintenance
Figure 8: Tilt lock
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