28 V Rear Panel Output Check - Agilent Technologies PSA Series Service Manual

Post-Repair Procedures

28 V Rear Panel Output Check

28 V Rear Panel Output Check
Description
Instruments with Option 219 and instruments with Front End Driver
assemblies E4440-60242 (<27 GHz models) or E4446-60059 (> 27 GHz
models) have a switchable 28 V connector on the rear panel.
Connect a voltmeter to the rear panel Noise Source Drive Out
connector. To turn on and off the 28 V, press then . Key in
System Service
−49
the password , and press . Press then press the
Enter Service Noise
key to toggle the 28 V on and off. The voltage should read 28 V
Source
±0.2 V.
Chapter 12 421