Power Inlet Assembly Replacement; Tools Required; Removal Procedure; Replacement Procedure - Agilent Technologies E4980A Service Manual

Power Inlet Assembly Replacement

Tools Required

• Torque screwdriver, TORX T20
• Torque screwdriver, TORX T8
• Torque screwdriver, TORX T10
• Box torque wrench, 5/8 inch

Removal Procedure

Refer to Figure 6-14 for this procedure.
Step 1. Remove the 3/4 Rack Module Top as described in "3/4 Rack Module Top Replacement" on
page 90.
Step 2. Remove the PPMC PCA as described in "PPMC PCA Replacement" on page 101.
Step 3. Remove the A1 Mother Board as described in "A1 Mother Board Replacement" on
page 103.
Step 4. Disconnect the power cable connector (item 1) from the Power Supply Assembly.
Step 5. Remove the TORX T20 screw (item 2) fastening the ground cable.
Step 6. Remove the two TORX T10 screws (item 3) fastening the Inlet Assembly.
Step 7. Remove the Inlet Assembly (item 4) from the Rear Panel.
Step 8. Detach the fuse box (item 5) from the original Inlet Assembly and remove the fuse (item 6
).

Replacement Procedure

Step 1. Reverse the order of the removal procedure.
NOTE
When you fasten the ground cable with the TORX T20 screw, set screwdriver's torque to
21.1 in-lb.
When you fasten the Inlet Assembly with the two TORX T10 screws, set screwdriver's
torque to 8.7 in-lb.
Do not forget to insert the fuse in the new Inlet Assembly.
Chapter 6
Replacement Procedure
Power Inlet Assembly Replacement
115