Bayer HealthCare RapidPoint 400 Series Service Manual page 361

c. Remove the illumination housing assembly.
4. Install the new illumination housing assembly using the two screws.
When reconnecting the fiber bundle, ensure that the fiber
CAUTION:
bundle bottoms out in the connector to avoid erroneous optics readings.
5. Reconnect the fiber bundle to the illumination housing assembly.
6. Check that the fiber bundle is not bunched or crimped.
7. Reassemble in the reverse order.Refer to Installing the Rear Cover,
Cartridge Interface Assembly, and Power Module Assembly on
page 378
8. Perform all system tests to ensure proper system operation.
Rev. C Replacing Components 361