CHAPTER 20
Preventive Maintenance and Troubleshooting
Inanimate objects can be classified scientifically into three major categories; those that don't work, those that break down and those that get lost.—Russell Baker, Pulitzer Prize-winning newspaper columnist
When automated lighting was in its infancy, two things were certain; they were sure to impress and they were sure to break down. The MARC 350 lamp, originally designed for 16 mm movie projectors, was a popular lamp source for automated lighting in the early 1980s because it had an integral dichroic reflector, a high color temperature, and a relatively small arc, which made it easier to collect the light. But it also required the use of an electronic switching power supply, which, at ...
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