Keysight Technologies N5247B, Service Manual

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7-92 Keysight N5247B Service Guide
Repair and Replacement Procedures
Post-Repair Procedures
7-
Post-Repair Procedures
After the replacement of an assembly, you must perform the service
procedures in the order listed in Table 7-2 .
Procedures referenced in this table are located in Chapter 3, “Tests and
Adjustments,” unless specified otherwise.
STOP!
Before returning the repaired instrument to the customer, it is
critical to ensure the product is safe for use. Before powering on the
instrument, verify there is ground continuity between the ground
terminal on the AC Inlet and the metal frame of the product. It is
also critical to perform a voltage test on the outer surfaces of the
product to confirm the instrument does not present an electric
shock hazard.
IMPORTANT! Before you begin any testing on a System or instrument,
always inspect the connectors on the instrument, the calibration kit,
cables and adapters.
IMPORTANT!
For the most current information on the Table 7-2 “Verification,
Performance, and Other Tests and Procedures” column’s content, refer to
https://cal.software.keysight.com/PNA/Help/N7840AWebHelp.htm .
Keysight personnel: see Figure 1-1 on page 1-6 to review where the
calibration stickers should be placed on the PNA.
Table 7-2 Related Service Procedures
Replaced Assembly
Adjustments
and Other Procedures
Verification, Performance,
and Other Tests and Procedures
A1 front panel display board No adjustment needed
Front Panel Keypad and RPG Test
and A3 Display Test in Chapter 4
A2 USB board No adjustment needed Check for proper operation
A3 display assembly Touchscreen Adjustment and
Verification
A3 Display Test in Chapter 4