573.3.4 Power Supply Assy(1) Remove Guide Paper (B), Cover Blank Lower and Rear Cover (B). (See 3.3.1)(2) Unplug connectors to Power Supply Unit 1.(3) Unscrew the screw 2 and release Earth Wire 3.(4) Unscrew the screw 4 and remove Bracket PG 5.(5) Unscrew 2 screws 6. Pulling forward the protrusion on Power Supply Unit 1 and sliding itin the arrow direction through 2 inserting positions, remove Power Supply Unit.(6) For installation, reverse the removal procedure.(Note on Installation)1. Insert the protrusion on Power Supply Unit 1 into the inserting positions on Lower Cover 7and mount the Unit.2. The fan should be installed, matching the direction of air flow to the direction of arrow shownin the figure.1237456ProtrusionAir Flow