Keysight Technologies 34970A Service Manual

Also see for 34972A: Manual

Contents

Keysight Technologies 34970A Service Manual Manual pdf 179 page image

Service 6Keysight 34970A/34972A Service Guide 179Self-Test ProceduresPower-On Self-TestEach time the instrument is powered on, a small set of self-tests are performed.These tests check that the minimum set of logic and measurement hardware arefunctioning properly. Any plug-in modules installed are verified for two-waycommunication with the main controller.Complete Self-TestHold down any front panel key for 5 seconds while turning on the power toperform a complete self-test. The instrument beeps when the test starts. If allself-tests pass the display shows PASS for five seconds and the instrumentreturns to the last measurement function.Plug-in Module Self-TestNo user self-test exists for the plug-in modules. The plug-in modules performtheir own self-test when power is applied. Additionally, the mainframe checkstwo-way communication with all plug-in modules at power on.Each plug-in module also performs error checking at regular intervals duringoperation and any errors detected are reported via the status system to the maincontroller.NOTE The following pages contain a subset of the 34970A/34972A error messages.Refer to the 34970A/34972A User’s Guide for the complete error messagelisting.