Pca Dc Bias Board (Opt.xx5) Replacement (A57/A58); Tools Required; Removal Procedure; Replacement Procedure - Keysight E5071C ENA Service Manual

Replacement Procedure

PCA DC Bias Board (Opt.xx5) Replacement (A57/A58)

PCA DC Bias Board (Opt.xx5) Replacement (A57/A58)

Tools Required

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Removal Procedure

Refer to
Step 1. Remove the outer cover as described in
Step 2. Remove the 9/16 inch nut (item 2) fastening the rear cover.
Step 3. Remove the six TORX T10 screws (item 1) fastening the rear cover.
Step 4. Disconnect the cable (item 3) from the analog motherboard.
Step 5. Remove the three TORX T10 screw (item 4) fastening the DC Bias board.
Figure 6-35 PCA DC Bias Board Removal
Replacement Procedure
Step 1. Replace the PCA DC bias board by inverse procedure of removal.
Fasten the 9/16 inch nuts (item 2) using a open-end torque wrench.
266
TORX screwdriver, T10, T15, and T20
Open-end torque wrench, 9/16 inch (set to 3.46 N-m / 30.5 lb-in)
Figure 6-34 for this procedure.
"Outer Cover Removal" on page
Keysight E5071C ENA Network Analyzers
203.