Xerox 7750DXF - Phaser Color Laser Printer Service Manual page 255

Engine Control Interface Board
Caution
Two connectors have locks to release before pulling on the harnesses.
Method #1
1.
After removing the engine control board, see page 8-42.
2. Disconnect the 8 wiring harnesses.
3. Loosen the 2 mounting bracket screws and remove the interface board from the
white plastic mounting posts.
Method #2
1. Lower the HVPS assembly to a horizontal position.
2. Disconnect the 8 wiring harnesses.
3.
Remove the 2 screws that secure the engine control interface board mounting
bracket to the printer frame.
4. Remove the engine control interface board and mounting bracket from the printer
frame.
Service Parts Disassembly
7750-023
8-43