Removing And Replacing The A14 System Motherboard - Agilent Technologies E8362C Service Manual

Repair and Replacement Procedures

Removing and Replacing the A14 System Motherboard

Removing and Replacing the A14 System Motherboard
Tools Required
• T-10 TORX driver (set to 9 in-lb)
• T-20 TORX driver (set to 21 in-lb)
• 5/16-inch open-end torque wrench (set to 10 in-lb)
• ESD grounding wrist strap
Removal Procedure
Refer to Figure 7-11 for this procedure.
1. Disconnect the power cord.
2. Remove the outer and inner covers. Refer to
3. Remove the front panel assembly. Refer to
page 7-10.
4. Remove the A12 source 20. Refer to
5. Remove the A13 (Option 080) frequency offset receiver assembly, if present. Refer to
Replacing the A13 Frequency Offset Receiver Assembly" on page
6. Remove the A11 phase lock board. Refer to
page 7-20.
7. Remove the A4 power supply assembly. Refer to
Assembly" on page 7-16.
8. Remove the card cage boards (A6, A8, and A10). Remove A9 (Option 080), if present. Refer to
and Replacing the A6, A8, A9, and A10 Boards" on page
9. Remove the A15 CPU board. Refer to
10. Remove the Midweb. Refer to
11. Remove the ribbon cable clamp (item
clamp aside for reinstallation later.
12. Disconnect the front panel ribbon cable (item
the USB hub assembly cable (item
13. Remove the remaining three screws (item
14. Lift the A14 system motherboard out of the analyzer.
Replacement Procedure
1. Reverse the order of the removal procedure.
2. Perform the post-repair adjustments, verifications, and performance tests that pertain to this removal
procedure. Refer to Table 7-2 on page
7-26
"Removing the Covers" on page
"Removing and Replacing the Front Panel Assembly" on
"Removing and Replacing the A12 Source 20" on page
"Removing and Replacing the A11 Phase Lock Board" on
"Removing and Replacing the A4 Power Supply
"Removing and Replacing the A15 CPU Board" on page
"Removing and Replacing the Midweb and the B1 Fan" on page
⑥
) by removing the attachment screw (item
①
), the test set motherboard ribbon cable (item
③
) from the A14 system motherboard.
④
) that secure the A14 system motherboard.
7-82.
PNA Series Microwave Network Analyzers
E8362C, E8363C, E8364C
7-6.
7-24.
7-18.
Service Guide E8364-90038
7-22.
"Removing and
"Removing
7-28.
7-76.
⑤
). Set the cable
➁
), and