Shutter/CFW(-8) Replacement Instructions
This document describes how to upgrade a QSI 500/600 Series camera to support the 8-position
Color Filter Wheel and how to replace the shutter/CFW assembly on QSI 500/600 Series
cameras. The process is not complicated but it does require proper procedures and care in order
to ensure that the camera does not get damaged.
NOTE: If the camera is damaged during the upgrade process, the subsequent
repair by QSI will not be covered by the camera warranty.
Please read the complete instructions carefully before proceeding. The instructions may seem
long but the process is actually quite easy and should take only a few minutes. If you’re not
comfortable with the required steps, we recommend that you return your camera to QSI for the
upgrade.
Setup in a clean environment with as little air movement as possible. It’s best to
have the camera cover off for the shortest amount of time possible to prevent any
unnecessary contamination. Wash your hands to remove any oil from your fingers.
Required tools/supplies
 Allen Wrench set included with QSI camera
 Ziploc bag to protect filter wheel after it's been removed from the camera
 Optional: Face mask and nitrile or latex gloves to protect filters and window
when exposed. It's amazing how many particles and fluids come off a
human body.
1. Remove the screws holding the cover to the camera
Lift cover from camera, set aside.
Become familiar with the parts of the shutter/CFW assembly.
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2. Remove screw from center of filter wheel
Be careful not to touch or contaminate glass surfaces of filters.
Lift filter wheel from Shutter/CFW Assembly and place carefully in Ziploc back, set aside.
3. If upgrading to a600 Series camera to an 8-pos CFW, skip to Step 5. Continue with steps
3 and 4 only if replacing the shutter/CFW assembly on a 500 Series camera.
Remove 3 screws holding shutter carrier assembly to body. Set screws aside.
Carefully lift shutter assembly straight up providing a small amount of upward force at
connector. Set aside.
BE VERY CAREFUL NOT TO BEND CONNECTOR PINS OR APPLY SIDE
FORCE TO CONNECTOR
4. Install new Shutter/CFW Assembly.
Position the new shutter assembly over the camera body and carefully lower the connector onto
the pins connecting the shutter control circuit board to the main circuit board. All 10 pins must
engage. Be careful not to bend any connector pins. You may need to press gently down over
the connector to get it to seat fully. The 3 holes in the shutter carrier should be positioned over
the standoffs on the camera. Replace the 3 screws that hold the shutter carrier to the camera.
See image 3 above.
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5. Install 8-position Adapter Plate (if upgrading to 8-pos CFW)
The 8-pos CFW Adapter Plate is attached with 4 3/8” 4-40 hex head screws (see yellow arrows
below) on the bottom and left sides of the camera. Screws for the remaining 4 screws holes will
go through the cover and adapter plate into the camera body.
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6. Set Selector Switch for 5 or 8-position Filter Wheel
There is a small switch on the side of the shutter/CFW control board. Its position is laser
engraved on the Shutter/CFW Mounting Plate. See image 5 above. Move the switch to the left
when using a 5-position CFW, to the right when using an 8-position CFW.
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7. Install the Filter Wheel.
Remove your filter wheel from the Ziploc back if necessary. Screw the filter wheel into the
shutter/CFW assembly.
 Note that the 8-position CFW has a separate, larger mounting hole than the
5-position CFW. See image 5 above.
 If installing an 8-position CFW, note that there is a thin washer that must be placed
between the shoulder screw and the 8-position CFW. See image 7 below.
The O-Ring on the outside of the filter wheel should compress slightly against the filter wheel
motor. You may find it helpful to position a clear filter or empty filter position over the shutter
aperture in order to correctly position the screw hole. Rotate the filter wheel motor gently with
your finger to confirm that it is properly installed.
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6. Hold the camera up in front of your eyes to confirm that the shutter disk and filter wheel are
parallel and that the 10-pin connector is properly seated.
Replace the camera cover and tighten the cover screws. In installing an 8-position CFW, note
that some of the screws will go through the adapter plate into the camera body. See image 5
above for the position of the longer screws that go through the adapter plate.
7. Install the latest camera firmware, USB drivers and any required application plug-ins.
Visit the Software page on the QSI web site for the latest software
(http://www.qsimaging.com/software.html).
Confirm everything was installed correctly.
1. Unscrew the camera cap so you can look into the camera, again being careful not to
contaminate the filters.
2. Plug power cord into camera while looking into the camera.
3. You should see the shutter disk and filter wheel rotate to their "home" positions.
4. After the camera completes its startup sequence it will chirp twice to indicate that it
passed its self-test.
5. Take some images to confirm that everything is now working correctly.
If you have any questions please contact QSI Technical Support at support@qsimaging.com or
by calling 888-774-4223.
www.QSImaging.com
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