232 Chapter 5
Post-Repair Procedures
Introduction
Introduction
This chapter provides information on the actions you will need to take
to return an instrument to full operation following replacement of
instrument assemblies. This information includes a list of adjustments,
tests, configuration procedures and checks you will need to perform. In
addition, you will find procedures for performing manual adjustments,
tests, configurations, and checks. The Agilent N7812A E4406A
Calibration Application Software automates all of the adjustments and
tests the instrument to specifications. Never perform adjustments as
routine maintenance. Adjustments should be performed after a repair
or a performance test failure. For information on which tests to
perform, refer to Table 5-1 in this chapter.
The following sections are found in this chapter:
“Before You Start” on page 233
“Abnormal Indications during Procedure Execution” on page 233
“After Assembly Replacement” on page 233
“Post-Repair Procedures” on page 234
“Test equipment you will need” on page 236
“Manual Test, Adjustment, and Configuration Procedures” on
page 237
“External Keyboard Test” on page 239
“Configuring a Replacement CPU Assembly” on page 241
“External Keyboard Test” on page 239
“Configuring a Replacement Flash Memory Assembly” on page 244
“Internal 10 MHz Frequency Reference Adjustment” on page 248
“Internal 50 MHz Calibrator Adjustment” on page 250
“Burst Trigger Check” on page 254
“Baseband I/Q Amplitude Accuracy Test” on page 255
“Front Panel Test” on page 259
“Automated Adjustments” on page 261
Safety
Familiarize yourself with the safety symbols marked on the
instrument, and read the general safety considerations and the safety
note definitions in the front of this guide, before you begin the
procedures in this chapter.
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