Keysight Technologies N5247B Service Manual page 477

Repair and Replacement Procedures
Removing and Replacing the A23 Test Set Motherboard
6. Remove connector hardware from the rear panel TEST SET I/O connector.
7. Remove 10 screws (item C) from the A23 test set motherboard.
8. Slide the A23 test set motherboard toward the front of the instrument until
the rear panel BNC connectors are free of the rear panel, then lift the
motherboard and remove it from 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
Keysight N5247B Service Guide
Table 7-2 on page 7-92.
7-33