Replacing The Power Supplies - Christie 4K40-RGB Series Service Manual

6. Replace the laser driver card cage.
7. To re-install, follow these steps in reverse order.

Replacing the power supplies

The 4K40-RGB Series power supply assembly includes individual 12V and 48V power supply modules
secured within a support bracket.
The 12V power supply module provides the required voltages for operating the electronics in the
projector and for receiving a UPS connection (if installed).
The 48V power supply module provides the required voltages for the lasers and pumps.
Before servicing, always carefully observe the original lead dress. Take extra precautions to secure all
harnessing properly, especially in the high voltage circuitry areas. Replace any wire that appears to
have damaged insulation.
1. Shut down the projector and ensure it is disconnected from AC.
2. Remove the rear cover (on page 33).
3. Unplug the 12V connector from the 12V power supply module.
4. Unplug the 48V connector from the 48V power supply module.
4K40-RGB Series Service Guide–D4K40-RGB, Roadie 4K40-RGB, Mirage 4K40-RGB
020-102960-02 Rev. 1 (12-2019)
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