HP 5000n manual DC Controller Board and Power Supply, 46Removing and Replacing Parts

DC Controller Board and Power Supply

This assembly contains two PCAs. One houses the DC Controller and the High-Voltage Power Supply, and the other contains the Low- Voltage Power Supply.

1Remove the Top Cover (page 6-12), Left and Right Side Covers (page 6-23), and the Formatter Assembly (page 6-40).

2Disconnect four cables on the right side of the chassis. (The fourth may have been disconnected during fan removal (page 6-39) already.) For the two large connectors, use a flat- blade screwdriver to release the locks by pressing down on the tabs on top of the connectors. Be sure to pull the cables away from the chassis.

3The remaining connections are located on the left side of the chassis. Disconnect the ribbon cable, the 2-pin, the 3-pin, and the two 20-pin connectors. Be sure to pull the cables away from the chassis.

4Remove five screws on the back side of the chassis (Figure

6-37). Two machine screws (A) are located on the top surface of the metal housing, one machine screw (C) has a lock washer and a ground wire, and two self-tapping screws (B) are located at the bottom of the DC Controller Assembly.

6-46Removing and Replacing Parts EN