CHAPTER 17
Maintenance and Troubleshooting
216 DL.3 Digital Light User Manual
Maintaining the Filtering System
Like all high quality video projection units, the DL.3 fixture must be kept protected from
excessive amounts of glycol fog, mineral oil, and smoke. DL.3 fixtures incorporate multiple air
filters to reduce these risks to a minimum; however, the user must follow these guidelines to
ensure continued operation of the fixture:
• Air filters (both fixture and projector) should be checked and cleaned on a regular basis.
When used in a closed or fixed environment where fog or haze is used, we recommend at
least a weekly check.
• Do not situate DL.3 in areas of high fog density such as directly in front of a fog machine or
mineral oil hazer.
• Minimize the exposure of DL.3 to both glycol fog and mineral oil.

Filter Warnings

The DL.3 menu system displays a series of filter status and warnings to alert you when a filter
needs to be cleaned or replaced. These appear in a large format that can be viewed from a
distance. The Info_Status menu screen will include a detailed message concerning the large
format Error/Warning filter message. The following messages will give you information
regarding the status of the DL.3 filter system:
•Filter Missing Error: A filter not present or is not installed properly. Check and insert
missing filter.
•Filter Service Warning: The filter system is not operating optimally and needs to be
serviced soon.
•Filter Service Error: The filter system needs immediate servicing. Replace Filter.
For these and other Error/Warning messages, see “Status Message Menu Display” on page 17-
226.

Cleaning and Replacing Filters

The DL.3 system utilizes multiple filters to protect the internal media server and projector.
• A filter is located on the side of the fixture base housing attached with velcro for easy
removal and cleaning. Check this filter often for dust or debris that can be caused when
using the DL.3 in environments with confetti or pyrotechnics. This filter is washable, but
must be completely dry before re-installing.
• The internal projector has an electrically operated filter cartridge that automatically
advances to replace the filtering material periodically, based on hours of use. It shouldn’t
require any maintenance. For more information regarding this filter, you can refer to the
projector manual that was shipped with your fixture.