6-46 Removing and Replacing Parts
EN
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.
1 Remove the Top Cover (page 6-12), Left and Right Side Covers
(page 6-23), and the Formatter Assembly (page 6-40).
2 Disconnect 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.
3 The 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.
4 Remove 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.
