Ppmc Pca Replacement; Tools Required; Removal Procedure; Replacement Procedure - Agilent Technologies E4980A Service Manual

PPMC PCA Replacement

Tools Required

• Torque screwdriver, TORX T20
• Torque screwdriver, TORX T8

Removal Procedure

Refer to Figure 6-7 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 four TORX T8 screws (item 1) fastening the PPMC PCA.
Step 3. Remove the Angle CPU (item 2) from the PPMC PCA.
Step 4. Disconnect the ground cable (item 3).
Step 5. Carefully disconnect the PPMC PCA from A1 Mother Board.
Step 6. Carefully disconnect the GPIB cable (item 4) from PPMC PCA.
Step 7. Remove the USB gasket (item 5) from the PPMC PCA.

Replacement Procedure

Step 1. Reverse the order of the removal procedure.
NOTE When you fasten the PPMC PCA with the four TORX T8 screws, set screwdriver's torque
to 3 in-lb.
Chapter 6
Replacement Procedure
PPMC PCA Replacement
101