A21 Pci Dsp Card / A24 Gpib Card Replacement; Tools Required; Removal Procedure; Replacement Procedure - Agilent Technologies ENA Series Service Manual

A21 PCI DSP Card / A24 GPIB Card Replacement

Tools Required

• TORX screwdriver, T10, T15, and T20
• Open-end wrench, 5/8 inch

Removal Procedure

Refer to Figure 6-13 for this procedure.
Step 1. Remove the outer cover as described in "Outer Cover Removal" on page 166.
Step 2. If the PCI angle (item 10) is attached, remove the four TORX T10 screws (item 9) and
remove the PCI angle.
Step 3. Disconnect the cables (item 1, 2, 3 and 4) from the A21 PCI DSP Card.
Step 4. Remove two TORX T10 screws (item 5) fastening the PCI DSP Card/GPIB Card assembly
to the rear panel.
Step 5. Disconnect the assembly from the A20 Digital Motherboard and Lift it.
Step 6. Remove the A21 PCI DSP Card or GPIB Card.
For removing the A21 PCI DSP Card.
• Remove a 5/8 inch nut (item 6) fastening the angle.
• Remove a TORX T10 screw (item 7) fastening the angle.
For removing the GPIB Card.
• Remove two TORX T10 screws (item 8) fastening the angle.

Replacement Procedure

Step 1. Reverse the order of the removal procedure.
Chapter 6
A21 PCI DSP Card / A24 GPIB Card Replacement
Replacement Procedure
185