Troubleshooting; Introduction - Keysight E4980A Service Manual

Keysight E4980A/E4980AL Precision LCR Meter
Service Guide
4

Troubleshooting

This chapter provides the procedure to isolate a faulty assembly in the
E4980A/ E4980AL.

Introduction

These servicing instructions are for use by qualified personnel only. To
avoid possible electrical shock, do not perform any servicing unless you
are qualified to do so.
The opening of covers or removal of parts is likely to expose dangerous
voltages. Disconnect the instrument from its power supply beforehand.
Many of the assemblies in the instrument are very susceptible to damage
from ESD (electrostatic discharge). Perform the following procedures only
at a static-safe workstation and wear a grounding strap.
DO NOT operate without following instructions. Programs or files in the
instrument may be broken.
29