Martin MAC III AirFX User Manual page 11

Lamp adjustment
Warning! Adjust the lamp with the fixture cool. The fixture may become hot during adjustment, so
wear heat-resistant safety gloves.
As well as being undesirable for aesthetic reasons, a significant hot-spot in the beam will focus extra heat
onto optical components and may cause damage that is not covered by the product warranty.
After fitting a new lamp, adjustment may be required to obtain an even beam.
To adjust the lamp:
1. If the fixture has been in use, allow it to cool for at least 2 hours 45 minutes to avoid the danger of burns,
and wear heat-resistant safety gloves.
2. Apply power, allow the fixture to reset, then set
zoom to narrow, turn on the lamp and open the
mechanical shutter.
3. Aim the fixture at an even surface and make
sure no further commands can be sent by
DMX.
4. See Figure 3. Screw the three lamp adjustment
screws in or out to obtain the most even beam.
Figure 3: Lamp adjustment screws
Lamp 11