Keysight P937 A Series Service Manual page 87

Removal and Replacement Procedures
Post-Repair Procedures
Calibration:
Although the analyzer functions, its performance relative to its specifications
has not been verified. It is recommended that a full instrument calibration be
performed using the TME Performance Tests. Refer to the TME webpage at
http://cal.software.keysight.com. If any of the tests fail, perform the
Adjustments (refer to "Adjustments" on page 48), then repeat the tests.
Keysight P937xA PXIe Service Guide 85