Keysight E4990A Troubleshooting Guide

Network Analyzer 15
Contents
Regulatory Compliance Information 6
Safety Notice Supplement 7
1 Troubleshooting
Introduction 18
How to exit from the E4990A Measurement View 19
To Troubleshoot the Instrument 20
Primary Trouble Isolation 20
No Display Troubleshooting 22
Booting Process Troubleshooting 27
Troubleshooting Using Diagnostic Test 32
Diagnostic Test 32
Function Specific Troubleshooting 34
To Check the Front Panel 35
To Check the Touch Panel 35
To Check the LCD 36
To Check the External Keyboard 36
To Check the Mouse 36
To Check the External Monitor Output Port 37
To Check the External Trigger Input 37
To Check the GPIB 37
To Check the USB 37
Performance Test failure Troubleshooting 39
Recommended Adjustment for Performance Test failure 39
Performance failure Troubleshooting 40
Adjustment failure Troubleshooting 40
2 Post Repair Procedure
Post Repair Procedures 44
License file 44

Keysight E4990A Specifications

General

Brand	Keysight
Model	E4990A
Category	Measuring Instruments
Language	English