Replacing The Front Ir Sensor Board (Front Irb) - Christie Crimson Series Service Manual

4. Pull back the harness and pull up the board off the post.
5. Replace the board, if required.
6. To re-install, repeat these steps in reverse order.

Replacing the front IR sensor board (front IRB)

The front IR sensor board (front IRB) receives command codes from the IR remote to control the
projector operation.
1. Remove the front cover (on page 41).
2. Disconnect the front IR harness (J108).
3. Remove the single screw securing the front IR sensor board to the bracket.
Crimson Service Guide–Crimson HD25, Crimson WU25, Crimson HD31, Crimson WU31, Mirage HD25, Mirage WU25
020-102733-02 Rev. 1 (01-2020)
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Printed circuit boards and sensors
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