6 Remove two screws (callout 7) and remove the left shield plate (callout 8). 8 Slide the power supply assembly out slightly. 9 Disconnect two connectors: one from the scanner controller board (SCB) and one from the intermediate PCB. 10 Thread the power supply connector up through the sheet metal. 11 Remove the power supply assembly. To reinstall Make sure not to pinch any cables when reinstalling the left shield plate. When reinstalling the power supply assembly, replace the two screws in the left and center holes. 152 Chapter 6 Removal and replacement C8523-90921 7 8 Power supply assembly (5 of 6) 7 Remove two screws (callout 9). Figure 139. 9 Power supply assembly (6 of 6)