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

Replacement Procedure

Power Inlet Assembly Replacement

Power Inlet Assembly Replacement

Tools Required

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Removal Procedure

Refer to
Step 1. Remove the 3/4 Rack Module Top as described in
Replacement" on page
Step 2. Remove the PPMC PCA as described in
page
Step 3. Remove the A1 Mother Board as described in
Replacement" on page
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.
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.
100
Torque screwdriver, TORX T20
Torque screwdriver, TORX T8
Torque screwdriver, TORX T10
Box torque wrench, 5/8 inch
Figure 6-14 for this procedure.
73.
84.
86.
"3/4 Rack Module Top
"PPMC PCA Replacement" on
"A1 Mother Board
Keysight E4980A/E4980AL Precision LCR Meter