Internal media frame (imf), Internal media – ETC Source Four Revolution User Manual

Page 31

Routine Maintenance

Internal Media Frame (IMF)

The internal media frame is designed to hold two pieces of gel within two semi-circular

removable frames. Performance of the gel in the internal media frame will vary with

frequency of use, materials and transmission properties of the gel. Some gels will perform

better than others.

It is possible for the gel in the internal media frame to warp or wear out, which can affect

the operation of the internal media frame mechanism or cause unwanted noise. If this

occurs, replace the gel. If the IMF is making noise, see

Changing the gel in the internal media frame:

Step 1:

Power-down the fixture. See

Step 2:

Lock the fixture head and yoke in a convenient position using the pan and tilt

locks.

Step 3:

Remove the scroller cartridge. Pull the latch on top of the scroller cartridge

forward and pull the scroller up out of the head. The gel string is held in tension

and may roll back after being released from the head.

Step 4:

Remove the head cover by loosening the two captured screws holding it in place

and lifting the cover off the head.

Step 5:

Slowly pull the front lens forward until the internal media frame is accessible, and

open, if necessary.

Step 6:

Remove the frames from each side of the internal media frame mechanism by

pulling the tab straight out of each wing. Do not flex or twist the wings.

Do not flex or twist the wings.