Service manual

Servicing the Mainframe 49Chapter 3
Replacing the
Power Supply
Assembly
This section gives guidelines to replace the Power Supply Assembly
(E8408-69005 [Standard] or E8408-90006 [Option 001]) in the E8408A
mainframe (see Figure 3-3).
Note Although the Power Supply Assembly contains the power supply and the
Interconnect Board, do NOT remove the Power Supply or the Interconnect
Board from the Assembly. Return the entire Power Supply Assembly to
Agilent for a (remanufactured) Power Supply Assembly. See Table 3-1
for replacement part numbers.
Be sure to observe static-free procedures when removing/installing the
Power Supply Assembly.
1 Turn off mainframe power and remove the AC power cord.
2 Follow the steps in Figure 3-3 to remove the Power Supply Assembly.
3 Reverse the steps in Figure 3-3 to replace the Power Supply
Assembly and to restore the mainframe to its original configuration.
Figure 3-3. Removing the Power Supply Assembly
7 Screws
Remove
1
to Remove From
Pull Assembly Out
2
Mainframe
from
Rear Panel