Power Supply - HP Compaq dc7800 Small Form Factor Business Product End-Of-Life Disassembly Instructions

c. Lift the cover off the power supply. The cover you remove is in two pieces, and hinges connect the
covers to the power supply chassis.
d. Using dikes, cut all cables connected to the PCA in the power supply.
e. Remove the three screws that secure the power supply PCA to the chassis (see Figure 10).
f. Remove the power supply PCA from the power supply chassis.
g. Cut two capacitors from the PCA, as shown in Figure 10.

POWER SUPPLY 2:

a. Using dikes, cut the plastic clamp that secures the wires to the power supply cover (see Figure
12).
b. Using a phillips screwdriver, remove the eight screws that secure the cover to the power supply
chassis - two screws
on back, four screws on the top, and two screws on the back (see Figures 11 & 12).
NOTE: You do not need to remove the screws from the fan guard or the power
connector.
c. Lift the cover off the power supply. The cover you remove is in two pieces, and hinges connect the
covers to the power supply chassis.
d. Using dikes, cut all cables connected to the PCA in the power supply.
e. Remove the four screws that secure the power supply PCA to the chassis (see Figure 13).
f. Remove the power supply PCA from the power supply chassis.
g. Cut the small PCA from the large PCA (see Figure 14)
h. Cut 4 capacitors from the PCA, as shown in Figure 14.
POWER SUPPLY 3:
a. Using dikes, cut the plastic clamp that secures the wires to the power supply cover (see Figure
16).
b. Using a phillips screwdriver, remove the eight screws that secure the cover to the power supply
chassis - two screws
on back, four screws on the top, and two screws on the back (see Figure 15 & 16).
NOTE: You do not need to remove the screws from the fan guard or the power
connector.
c. Lift the cover off the power supply. The cover you remove is in two pieces, and hinges connect the
covers to the power supply chassis.
d. Using dikes, cut all cables connected to the PCA in the power supply.
e. Remove the three screws that secure the power supply PCA to the chassis (see Figure 17).
f. Remove the power supply PCA from the power supply chassis.
g. Cut 7 capacitors from the PCA, as shown in Figure 18.
POWER SUPPLY 4:
a. Using dikes, cut the plastic clamp that secures the wires to the power supply cover (see Figure
20).
b. Using a phillips screwdriver, remove the eight screws that secure the cover to the power supply
chassis - two screws
on back, four screws on the top, and two screws on the back (see Figures 19 & 20).
NOTE: You do not need to remove the screws from the fan guard or the power
connector.