Keysight Technologies 53210A - Introduction; Returning the Counter to Keysight Technologies for Service; About the Keysight 53210 A;53220 A;53230 A Calibration Menu; The Keysight 53210 A;53220 A;53230 A Calibration Procedures

2Service
100 Keysight 53210A/53220A/53230A Assembly Level Service Guide
Introduction
This chapter provides service information for your Keysight 53210A, 53220A, and
53230A Counters. It is divided into five major sections:
Returning the counter to Keysight Technologies for service
This section provides you with instructions on how to return the counter to
Keysight for service.
About the Keysight 53210A/53220A/53230A calibration menu
This section contains reference information that gives an overview of the
calibration menu for the Keysight 53210A, 53220A, and 53230A Counters.
The Keysight 53210A/53220A/53230A calibration procedures
This section provides step-by-step procedures for calibrating the
Keysight 53210A, 53220A, and 53230A Counters.
Pre-troubleshooting information
This section provides you with pertinent information such as safety considerations,
recommended test equipment, repair and after-service calibration considerations,
and assembly identification and location.
Troubleshooting information
This section provides you with troubleshooting procedures that can assist you to
isolate an instrument failure to the faulty assembly or module. A final section on
“Error Messages” can be used to help isolate a failed assembly for replacement.
NOTE
Unless otherwise indicated, this manual applies to all serial numbers for the
Keysight 53210A/53220A/53230A Counters.