Testing Ground Continuity - Christie Boxer 4K Series Service Manual

1. Remove the rear cover (on page 35).
2. Remove the bottom cover (on page 36).
3. Release the AC input module.
4. Disconnect the five harnesses.
5. Remove the nine screws securing the power supply bracket to the projector.
6. Swing the power supply bracket out and remove the power supply module.
7. Remove the four screws securing the power supply to the bracket.
8. Replace the power supply.
9. To re-install, follow these steps in reverse order.
Warning! If not avoided, the following could result in death or serious injury.
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Testing ground continuity

Complete a ground continuity test to verify a continuous conductive path exists for current to flow in
the event of a fault.
1. Check AC Input 1 earth terminal continuity.
a) Attach one test lead to the AC Input 1 ground post.
b) Attach the second test lead to the projector's metal foot post.
Boxer 4K Service Guide
020-101699-04 Rev. 1 (02-2018)
Copyright 2018 Christie Digital Systems USA, Inc. All rights reserved.
©
To ensure proper grounding of the product, insert the primary AC Input 1 and Input 2
connectors until you hear a click to indicate they are properly secured.
Electronics
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