Circuit Board Layout - Martin MAC 350 Entour User Manual

Circuit board layout

Figure 12: Main PCB and DIP switch
The MAC 350 Entour has a large fan on the back of the head. Two types of this fan are installed at the
factory, one with 2 and one with 3 wires. Airflow, cooling effect and noise levels are exactly the same for both
types of fan. On fixtures with the two-wire fan, DIP switch pin 1 on the main PCB must be set to the ON
position and all the other pins set to OFF in normal operation. On fixtures with the three-wire fan, all DIP
switch pins must be set to the OFF position in normal operation.
Service and maintenance 31