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Harnesses
Harnesses can transmit signals or electrical power.
Before servicing, always carefully observe the original lead dress. Take extra precautions to secure all
harnessing properly, especially in the high voltage circuitry areas (such as lamp cables). Replace any
wire that appears to have damaged insulation.
Replacing the mini-SAS cables
The mini-SAS harnesses move data from the light engine to the card cage.
1. Remove the light engine (on page 78).
2. Disconnect the red, green, and blue mini-SAS harnesses from the light engine.
3. Replace the mini-SAS harnesses.
4. Reconnect the mini-SAS harnesses to the light engine.
Make sure the access and bends are identical to what was installed or the harnesses do not
route properly.
5. Replace the light engine.
6. Reconnect the mini-SAS harnesses to the card cage.
Replacing the SID harness
Learn how to replace the SID harness.
1. Remove top cover (on page 33).
2. Release the two cable clips retaining the SID harness.
One end of the SID harness is fastened to the projector frame top structure and the other end
is connected to the in-line connector on the harness P/N: 001-113510-XX, which connects to
P89 on the HKBB.
3. Gently separate the other cables in the same run away from the SID cable.
4. Remove the screw securing the SID harness to the projector.
5. Cut the zip tie restraining the SID harness to the near-by harness.
6. Unplug the SID harness at the in-line connector.
7. Remove the SID harness.
8. Replace the SID harness.
9. To re-install, repeat these steps in reverse order.
4K40-RGB Series Service Guide–D4K40-RGB, Roadie 4K40-RGB, Mirage 4K40-RGB
020-102960-02 Rev. 1 (12-2019)
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2019 Christie Digital Systems USA, Inc. All rights reserved.
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