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Electronic Theatre Controls Inc

DRd Dimming Engine Switch or Header Near Fan Header

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Explanation

Currently shipping DRd Dimming Engines have a switch which changes the fan speeds based on whether a recessed kit is installed. Early DRd Dimming Engines had a reserved header (position J2) next to the fan connection (J1). When the recessed kit was introduced for the DRd, position J2's header was replaced with a switch for the recessed option. See pictures below for reference:

Original:

IMG_6353.JPG

New:

IMG_6352.JPG

 

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