ETC Source Four Revolution with Wybron - Manual (Page 23)

Configuration 19
Shutter Module (SM)
The Shutter Module contains a four-blade shutter mechanism. Each shutter can be rotated
+/– 45° (total range of motion = 90°).
C A U T I O N : The Shutter Module must be placed in the Rear Bay. It will not operate in the Front
Bay.
A counterweight frame insert is included to offset the weight of an installed shutter module.
When using the shutter module in your Revolution fixture, you must also insert the
counterweight frame into the gel frame slot at the front of the color scroller. This will ensure
proper pan and tilt function.
After the counterweight is inserted, secure it in place with the top latch (see page 26 ).
If desired, a standard (1.1 lb/0.5 kg) tophat can be substituted for the counterweight frame
insert.
C A U T I O N :
You must use a counterweight frame insert when using a shutter module. Failure
to do so may result in pan and tilt malfunction.
Counterweight Frame
with Weights