Keysight Technologies 33210A Service Manual

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Keysight 33210A 10 MHz
Function/Arbitrary Waveform
Generator

Service Guide

Notices

CAUTION

WARNING

Copyright Notice

© Keysight Technologies 2008 - 2017
No part of this manual may be repro-

duced in any form or by any means
(including electronic storage and
retrieval or translation into a foreign
language) without prior agreement and
written consent from Keysight Technol­ogies as governed by United States and
international copyright laws.

Manual Part Number

33210-90010

Edition

Edition 2, October 1, 2017

Printed in:

Printed in Malaysia

Published by:

Keysight Technologies
Bayan Lepas Free Industrial Zone,
11900 Penang, Malaysia

Technology Licenses

The hardware and/or software
described in this document are fur­nished under a license and may be
used or copied only in accordance with
the terms of such license.

Declaration of Conformity

Declarations of Conformity for this
product and for other Keysight prod­ucts may be downloaded from the
Web.

U.S. Government Rights

The Software is “commercial computer
software,” as defined by Federal Acqui­sition Regulation (“FAR”) 2.101. Pursu­ant to FAR 12.212 and 27.405-3 and
Department of Defense FAR Supple­ment (“DFARS”) 227.7202, the U.S.
government acquires commercial com­puter software under the same terms
by which the software is customarily
provided to the public. Accordingly,
Keysight provides the Software to U.S.
government customers under its stan­dard commercial license, which is
embodied in its End User License
Agreement (EULA),The license set forth
in the EULA represents the exclusive
authority by which the U.S. government
may use, modify, distribute, or
disclose the Soft-ware. The EULA and
the license set forth therein, does not
require or per-mit, among other things,
that Keysight: (1) Furnish technical
information related to commercial
computer
computer software documentation that
is not customarily provided to the
public; or (2) Relinquish to, or otherwise
provide,
excess of these rights customarily
provided to the public to use, modify,
reproduce, release, per-form, display, or
disclose commercial computer
software or commercial com-puter
software documentation. No additional
government requirements beyond
those set forth in the EULA shall apply,
except to the extent that those terms,
rights, or licenses are explicitly
required from all providers of
commercial computer software pursu­ant to the FAR and the DFARS and are
set forth specifically in writing else­where in the EULA. Keysight shall be
under no obligation to update, revise or
otherwise modify the Software. With
respect to any technical data as
defined by FAR 2.101, pursuant to FAR

12.211 and

227.7102, the U.S. government
acquires no greater than Limited Rights
as defined in FAR 27.401 or DFAR

227.7103-5 (c), as applicable in any
technical data.

soft-ware or commercial

the govern-ment rights in

27.404.2 and DFARS

Warranty

THE MATERIAL CONTAINED IN THIS
DOCUMENT IS PROVIDED “AS IS,”
AND IS SUBJECT TO BEING
CHANGED, WITHOUT NOTICE, IN
FUTURE EDITIONS. FURTHER, TO THE
MAXIMUM EXTENT PERMITTED BY
APPLICABLE LAW, KEYSIGHT DIS­CLAIMS ALL WARRANTIES, EITHER
EXPRESS OR IMPLIED, WITH REGARD
TO THIS MANUAL AND ANY INFORMA­TION CONTAINED HEREIN, INCLUD­ING BUT NOT LIMITED TO THE
IMPLIED WARRANTIES OF MER­CHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. KEYSIGHT
SHALL NOT BE LIABLE FOR ERRORS
OR FOR INCIDENTAL OR CONSE­QUENTIAL DAMAGES IN CONNECTION
WITH THE FURNISHING, USE, OR
PERFORMANCE OF THIS DOCUMENT
OR OF ANY INFORMATION CON­TAINED HEREIN. SHOULD KEYSIGHT
AND THE USER HAVE A SEPARATE
WRITTEN AGREEMENT WITH WAR­RANTY TERMS COVERING THE MATE­RIAL IN THIS DOCUMENT THAT
CONFLICT WITH THESE TERMS, THE
WARRANTY TERMS IN THE SEPARATE
AGREEMENT SHALL CONTROL.

Safety Information

A CAUTION notice denotes a hazard. It
calls attention to an operating proce­dure, practice, or the like that, if not
correctly performed or adhered to,
could result in damage to the product
or loss of important data. Do not pro­ceed beyond a CAUTION notice until
the indicated conditions are fully
understood and met.

A WARNING notice denotes a hazard. It
calls attention to an operating proce­dure, practice, or the like that, if not
correctly performed or adhered to,
could result in personal injury or death.
Do not proceed beyond a WARNING
notice until the indicated conditions are
fully understood and met.

2 Keysight 33210A Service Guide

Keysight 33210A at a Glance

NOTE

The Keysight Technologies 33210A is a 10 MHz synthesized function generator
with built-in arbitrary waveform and pulse capabilities. Its combination of
bench-top and system features makes this function generator a versatile solution
for your testing requirements now and in the future.

Convenient bench-top features

– Up to 10 standard waveforms

– Built-in 14-bit 50 MSa/s waveform capability

– Precise pulse waveform capabilities with adjustable edge time

– LCD display provides numeric and graphical views

– Easy-to-use knob and numeric keypad

– Instrument state storage with user-defined names

– Portable, ruggedized case with non-skid feet

Flexible system features

– Four optional downloadable 8K-point arbitrary waveform memories (Option

002)

– GPIB (IEEE-488), USB, and LAN remote interfaces are standard

– LXI Class C Compliant

– SCPI (Standard Commands for Programmable Instruments) compatibility

Unless otherwise indicated, this manual applies to all Serial Numbers.

Keysight 33210A Service Guide 3

The Front Panel at a Glance

NOTE

1 Graph Mode / Local Key
2 On/Off Switch
3 Modulation/Sweep/Burst Keys
4 State Storage Menu Key
5 Utility Menu Key
6 Help Menu Key
7 Menu Operation Softkeys
8 Waveform Selection Keys

To get context-sensitive help on any front-panel key or menu softkey, press and
hold down that key.

9 Manual Trigger Key (used for

Sweep and Burst only )

10 Output Enable/Disable Key
11 Knob
12 Cursor Keys
13 Sync Connector
14 Output Connector

4 Keysight 33210A Service Guide

The Front-Panel Display at a Glance

Trigger

Output

Mode

Numeric
Readout

Information

Information

Status

Units

Display
Icon

Softkey Labels

To enter or exit the Graph Mode, press the key.

In Graph Mode, only one parameter label

Signal

Parameter

Name

Parameter

Value

Ground

is displayed for each key at one time.

Menu Mode

Graph Mode

Keysight 33210A Service Guide 5

Front-Panel Number Entry

You can enter numbers from the front-panel using one of two methods.

Use the knob and cursor keys to mod ify the displayed number.

1 Use the keys below the knob to move the cursor left or right.
2 Rotate the knob to change a digit (clockwise to increase).

Use the keypad to enter numbers and the softkeys to select units.

1 Key in a value as you would on a typical calculator.
2

Select a unit to enter the value.

6 Keysight 33210A Service Guide

The Rear Panel at a Glance

NOTE

External 10 MHz Reference Input

1

Terminal

2

Internal 10 MHz Reference Output
Terminal (Option 001 only)

3 External Modulation Input Terminal

Use the

– Select the GPIB address (see Chapter 3).

– Set the network parameters for the LAN interface (see Chapter 3).

– Display the current network parameters (see Chapter 3).

The External and Internal 10 MHz Reference Terminals (1 and 2, above) are
present only if Option 001, External Timebase Reference, is installed. Otherwise,
the holes for these connectors are plugged.

(Option 001 only)

menu to:

.

.

4 Input:

5 USB Interface Connector
6 LAN Interface Connector
7 GPIB Interface Connector
8 Chassis Ground

External Trigger/Burst Gate

Output: Trigger Output

Keysight 33210A Service Guide 7

WARNING

For protection from electrical shock, the power cord ground must not be
defeated. If only a two-contact electrical outlet is available, connect the
instrument’s chassis ground screw (see above) to a good earth ground.

8 Keysight 33210A Service Guide

In This Book

Specifications Chapter 1 lists the function generator’s specifications.

Quick Start Chapter 2 prepares the function generator for use and helps you

get familiar with a few of its front-panel features.

Front-Panel Menu Operation Chapter 3 introduces you to the front-

menu and describes some of the function generator’s menu features.

panel

Calibration Procedures Chapter 4 provides calibration, verification, and

adjustment procedures for the function generator.

Block Diagram Chapter 5 describes block and power supply operation of the

function generator.

Disassembly and Repair Chapter 6 provides guidelines for returning your

function generator to Keysight Technologies for servicing, or for servicing it
yourself. This chapter also contains a list of replaceable parts for the function
generator and how to order the parts.

Backdating Chapter 7 describes the differences between this manual and older

issues of this manual.

Keysight 33210A Service Guide 9

Waste Electrical and Electronic Equipment (WEEE) Directive

This instrument complies with the WEEE Directive marking requirement. This
affixed product label indicates that you must not discard this electrical or
electronic product in domestic household waste.

Product category:

With reference to the equipment types in the WEEE directive Annex 1, this
instrument is classified as a “Monitoring and Control Instrument” product.

The affixed product label is as shown below.

Do not dispose in domestic household waste.

Sales and Technical Support

To contact Keysight for sales and technical support, refer to the support links on
the following Keysight websites:

10 Keysight 33210A Service Guide

Table of Contents

Keysight 33210A at a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

The Front Panel at a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

The Front-Panel Display at a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Menu Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Graph Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Front-Panel Number Entry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

The Rear Panel at a Glance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

In This Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Waste Electrical and Electronic Equipment (WEEE) Directive . . . . . . .10

Product category: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Sales and Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

1 Specifications

2Quick Start

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

To Prepare the Function Generator for Use . . . . . . . . . . . . . . . . . . . . . .19

To Adjust the Carrying Handle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

To Set the Output Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

To Set the Output Amplitude . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

To Set a DC Offset Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

To Set the High-Level and Low-Level Values . . . . . . . . . . . . . . . . . . . .25

To Select “DC Volts” . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

To Set the Duty Cycle of a Square Wave . . . . . . . . . . . . . . . . . . . . . . . .27

To Configure a Pulse Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28

To View a Waveform Graph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

To Output a Stored Arbitrary Waveform . . . . . . . . . . . . . . . . . . . . . . . .30

To Use the Built-In Help System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

To Rack Mount the Function Generator . . . . . . . . . . . . . . . . . . . . . . . . .33

Keysight 33210A Service Guide 11

3 Front-Panel Menu Operation

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Front-Panel Menu Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

To Select the Output Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

To Reset the Function Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

To Read the Calibration Information . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

To Unsecure and Secure for Calibration . . . . . . . . . . . . . . . . . . . . . . . . 44

To Unsecure for Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

To Secure After Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

To Store the Instrument State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

To Configure the Remote Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

GPIB Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

USB Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

LAN Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

4 Calibration Procedures

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Keysight Technologies Calibration Services . . . . . . . . . . . . . . . . . . . . . 58

Calibration Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58

Adjustment is Recommended . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59

Time Required for Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

Automating Calibration Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Recommended Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Test Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Performance Verification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Quick Performance Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Performance Verification Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

Internal Timebase Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

AC Amplitude (high-impedance) Verification . . . . . . . . . . . . . . . . . . . . 69

Low Frequency Flatness Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

12 Keysight 33210A Service Guide

0 dB Range Flatness Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .72

+10 dB Range Flatness Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . .74

+20 dB Range Flatness Verification . . . . . . . . . . . . . . . . . . . . . . . . . . . .76

Calibration Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78

To Unsecure the Instrument Without the Security Code . . . . . . . . .78

Calibration Message . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80

Calibration Count . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81

General Calibration/Adjustment Procedure . . . . . . . . . . . . . . . . . . . . . .82

Aborting a Calibration in Progress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83

Sequence of Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84

Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85

Frequency (Internal Timebase) Adjustment . . . . . . . . . . . . . . . . . . . . . .86

Internal ADC Adjustment/Self Calibration . . . . . . . . . . . . . . . . . . . . . . .88

Output Impedance Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

AC Amplitude (high-impedance) Adjustment . . . . . . . . . . . . . . . . . . . .92

Low Frequency Flatness Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .94

0 dB Range Flatness Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . .96

+10 dB Range Flatness Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . .98

+20 dB Range Flatness Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . .100

Calibration Errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103

5Block Diagram

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .106

Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .107

Power Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110

6 Disassembly and Repair

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .112

Operating Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

Is the instrument inoperative? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113

Is the display working? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .113

Keysight 33210A Service Guide 13

Does the instrument fail self-test? . . . . . . . . . . . . . . . . . . . . . . . . . 113

Types of Service Available . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Extended Service Contracts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 114

Obtaining Repair Service (Worldwide) . . . . . . . . . . . . . . . . . . . . . . 114

Repackaging for Shipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115

Electrostatic Discharge (ESD) Precautions . . . . . . . . . . . . . . . . . . . . . 116

Surface Mount Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116

Troubleshooting Hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Unit is Inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Is the display working? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Unit Fails Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117

Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 118

Self-Test Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Power-On Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Complete Self-Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Self-Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120

Mechanical Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 122

General Disassembly Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . 123

Removing the Main Power Supply Assembly . . . . . . . . . . . . . . . . . 127

Front-Panel Removal Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . 128

Front-Panel Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

External Timebase Circuit Board Disassembly . . . . . . . . . . . . . . . . 134

Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

To Order Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135

7Backdating

Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139

14 Keysight 33210A Service Guide

Keysight 33210A 10 MHz Function/Arbitrary Waveform Generator
Service Guide

1 Specifications

For the specifications and characteristics of the 33210A 10 MHz Function/
Arbitrary Waveform Generator, refer to the datasheet at

http://literature.cdn.keysight.com/litweb/pdf/5989-8926EN.pdf

15

1 Specifications

THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.

16 Keysight 33210A Service Guide

Keysight 33210A 10 MHz Function/Arbitrary Waveform Generator
Service Guide

2 Quick Start

Introduction 18
To Prepare the Function Generator for Use 19
To Adjust the Carrying Handle 20
To Set the Output Frequency 21
To Set the Output Amplitude 22
To Set a DC Offset Voltage 24
To Set the High-Level and Low-Level Values 25
To Select “DC Volts” 26
To Set the Duty Cycle of a Square Wave 27
To Configure a Pulse Waveform 28
To View a Waveform Graph 29
To Output a Stored Arbitrary Waveform 30
To Use the Built-In Help System 31
To Rack Mount the Function Generator 33

17

2 Quick Start

Introduction

One of the first things to do with your function generator is
with the front panel. We have written the exercises
instrument for use and help you get familiar with some of its front-panel
operations. This chapter is divided into the following sections:

– To Prepare the Function Generator for Use on page 19

– To Adjust the Carrying Handle on page 20

– To Set the Output Frequency on page 21

– To Set the Output Amplitude on page 22

– To Set a DC Offset Voltage on page 24

– To Set the High-Level and Low-Level Values on page 25

– To Select “DC Volts” on page 26

– To Set the Duty Cycle of a Square Wave on page 27

– To Configure a Pulse Waveform on page 28

– To View a Waveform Graph on page 29

– To Output a Stored Arbitrary Waveform on page 30

– To Use the Built-In Help System on page 31

– To Rack Mount the Function Generator on page 33

in this chapter to prepare the

to become acquainted

18 Keysight 33210A Service Guide

To Prepare the Function Generator for Use

NOTE

Power
Switch

NOTE

1 Check the list of supplied items.

Verify that you have received the following items with your instrument. If
anything is missing, please contact your nearest Keysight Sales Office.

– Power cord (for country of destination).

– Certificate of Calibration.

– Keysight 33210A Product Reference CD (product software, programmi

examples, and manuals).

– Keysight Automation-Ready CD (Keysight IO Libraries Suite).

– USB 2.0 cable.

All of the 33210A product documentation is provided on the Keysight 33210A
Product Reference CD that comes with the product.

Quick Start 2

ng

2 Connect the power cord and turn on the function generator.

The instrument runs a short power-on self test, which takes a few seconds.
When the instrument is ready for use it displays a message about how to
obtain help, along with the current GPIB address and USB identification
string. The function generator powers up in the sine wave function at 1 kHz
with an amplitude of 100 mV peak-to-peak (into a 50Ω termination).
At power-on, the

connector, press the key

If the function generator does not turn on, verify that the power cord is
connected to the power receptacle on the rear panel (the power-line
automatically sensed at power-on). You should also make sure
generator is connected to a power source that is energized
function generator is turned on.

If the power-on self test fails, “Self-Test Failed” is displayed along with an error
code. See the Keysight 33210A Service Guide for information on error codes,
and for

Keysight 33210A Service Guide 19

instructions on returning the function generator to Keysight for service.

Output

connector

.

is disabled. To enable the Output

firmly

voltage is

that the function

. Then, verify that the

2 Quick Start

Carrying

Position

Extended

Retracted

To Adjust the Carrying Handle

To adjust the position, grasp the handle by the sides and pull outward. Then,
rotate the handle to the desired position.

20 Keysight 33210A Service Guide

To Set the Output Frequency

NOTE

At power-on, the function generator outputs a sine wave at 1 kHz with an
amplitude of 100 mV peak-to-peak (into a 50Ω termination). The following steps
show you how to change the frequency to 1.2 MHz.

1 Press the “Freq” softkey.

The displayed frequency is either the power-on value or the frequency
previously selected. When you change functions, the same frequency is used if
the present value is valid for the new function. To set the waveform period
instead, press the Freq softkey again to toggle to the Period softkey (the
current selection is highlighted).

2 Enter the magnitude of the desired frequency.

Using the numeric keypad, enter the value “1.2”.

Quick Start 2

3 Select the desired units.

Press the softkey that corresponds to the desired units. When you select the
units, the function generator outputs a waveform with the displayed frequency

.

(if the output is enabled). For this example, press MHz

Y

ou can also enter the desired value using the knob and cursor keys.

Keysight 33210A Service Guide 21

2 Quick Start

NOTE

To Set the Output Amplitude

At power-on, the function generator outputs a sine wave with an amplitude of 100
mV peak-to-peak (into a 50Ω termination). The following steps show you how to

change the amplitude to 50 mVrms.

1 Press the “Ampl” softkey.

The displayed amplitude is either the power-on value or the amplitude

previously selected. When you change functions, the same amplitude is

the present value is valid for the new function. To set the amplitude

level and low level, press the Ampl softkey again to toggle to the HiLevel and

LoLevel softkeys (the current selection is highlighted).

2 Enter the magnitude of the desired amplitude.

Using the numeric keypad, enter the value “50”.

used if

using a high

3 Select the desired units.

Press the softkey that corresponds to the desired units. When you select

units, the function generator outputs the waveform with the displayed

amplitude (if the output is enabled). For this example, press mV

Y

ou can also enter the desired value using the knob and cursor keys.

22 Keysight 33210A Service Guide

RMS

the

.

Quick Start 2

You can easily convert the displayed amplitude from one unit to another. For
example, the following steps show you how to convert the amplitude from
Vrms to Vpp.

4 Enter the numeric entry mode.

Press the key to enter the numeric entry mode.

5 Select the new units.

Press the softkey that corresponds to the desired units. The displayed value is
converted to the new units. For this example, press the Vpp softkey to convert
50 mVrms to its equivalent in volts peak-to-peak.

To change the displayed amplitude by decades, press the right-cursor key to
move the cursor to the units on the right side of the display. Then, rotate the
knob to increase or decrease the displayed amplitude by decades.

Keysight 33210A Service Guide 23

2 Quick Start

NOTE

To Set a DC Offset Voltage

At power-on, the function generator outputs a sine wave with a dc offset of 0 volts
(into a 50Ω termination). The following steps show you how to change the offset

to –1.5 mVdc.

1 Press the “Offset” softkey.

The displayed offset voltage is either the power-on value or the offset

previously selected. When you change functions, the same offset is used if the

present value is valid for the new function.

2 Enter the magnitude of the desired offset.

Using the numeric keypad, enter the value “–1.5”.

3 Select the desired units.

Press the softkey that corresponds to the desired units. When you select

units, the function generator outputs the waveform with the displayed

the output is enabled). For this example, press mV

Y

ou can also enter the desired value using the knob and cursor keys.

24 Keysight 33210A Service Guide

DC

.

the

offset (if

To Set the High-Level and Low-Level Values

You can specify a signal by setting its amplitude and dc offset values, as described
previously. Another way to set the limits of a signal is to specify its high-level
(maximum) and low-level (minimum) values. This is typically convenient for digital
applications. In the following example, let's set the high-level to 1.0 V and the
low-level to 0.0 V.

1 Press the “Ampl” softkey to select “Ampl”.

2 Press the softkey again to toggle to “HiLevel”.

Note that both the Ampl and Offset softkeys toggle together, to HiLevel and
LoLevel, respectively.

3 Set the “HiLevel” value.

Using the numeric keypad or the knob, select a value of “1.0 V”. (If you are
using the keypad, you will need to select the unit, “V”, to enter the value.)

Quick Start 2

4 Press the “LoLevel” softkey and set the value.

Again, use the numeric keypad or the knob to enter a value of “0.0 V”.

Note that these settings (high-level = “1.0 V” and low-level = “0.0 V”) are
equivalent to setting an amplitude of “1.0 Vpp” and an offset of “500 mVdc”.

Keysight 33210A Service Guide 25

2 Quick Start

To Select “DC Volts”

You can select the “DC Volts” feature from the “Utility” menu, and then set a
constant dc voltage as an “Offset” value. Let's set “DC Volts” = 1.0 Vdc.

1 Press and then select the DC On softkey.

The Offset value becomes selected.

2 Enter the desired voltage level as an “Offset”.

Enter 1.0 Vdc with the numeric keypad or knob.

You can enter any dc voltage from -5 Vdc to +5 Vdc.

26 Keysight 33210A Service Guide

To Set the Duty Cycle of a Square Wave

At power-on, the duty cycle for square waves is 50%. You can adjust the duty
cycle from 20% to 80% for output frequencies up to 5 MHz. The following steps

show you how to change the duty cycle to 30%.

1 Select the square wave function.

Press the key and then set the desired output frequency to any value up
to 5 MHz.

2 Press the “Duty Cycle” softkey.

The displayed duty cycle is either the power-on value or the percentage
previously selected. The duty cycle represents the amount of time per cycle
that the square wave is at a high level (note the icon on the right side of the
display).

Quick Start 2

3 Enter the desired duty cycle.

Using the numeric keypad or the knob, select a duty cycle value of “30”. The
function generator adjusts the duty cycle immediately and outputs a square
wave with the specified value (if the output is enabled).

Keysight 33210A Service Guide 27

2 Quick Start

To Configure a Pulse Waveform

You can configure the function generator to output a pulse waveform with variable
pulse width and edge time. The following steps show you how to configure a 500

ms pulse waveform with a pulse width of 10 ms and edge times of 50 ns.

1 Select the pulse function.

Press the key to select the pulse function and output a pulse waveform

with the default parameters.

2 Set the pulse period.

Press the Period softkey and then set the pulse period to 500 ms.

3 Set the pulse wid th.

Press the Width softkey and then set the pulse width to 10 ms. The pulse

width represents the time from the 50% threshold of the rising edge to the

50% threshold of the next falling edge (note the display icon).

4 Set the edge time for both edges.

Press the Edge Time softkey and then set the edge time for both the rising and

falling edges to 50 ns. The edge time represents the time from

threshold to the 90% threshold of each edge (note the display icon

28 Keysight 33210A Service Guide

the 10%

).

To View a Waveform Graph

NOTE

In the Graph Mode, you can view a graphical representation of the current
waveform parameters. The softkeys are listed in the same order as in the normal
display mode, and they perform the same functions. However, only one label (for
example, Freq or Period) is displayed for each softkey at one time.

1 Enable the Graph Mode.

Quick Start 2

Press the key to enable the Graph Mode. The name of the
selected
parameter’s numeric value field are both highlighted.

2 Select the desired parameter.

To select a specific parameter, note the softkey labels at the bottom of the
display.

– As in the normal display mode, you can edit numbers using either the

–

– To exit the Graph Mode, press again.

The key also serves as a key to restore front-panel control after
remote interface operations.

parameter,

For example

numeric keypad or the knob and cursor keys.

Parameters which normally toggle when you press a key a second time
toggle in the Graph Mode. However, you can see only one label for each
softkey at one time (for example, Freq or Period).

shown in the upper-left corner of the display, and the

, to select period, press the Period softkey.

currently

also

Keysight 33210A Service Guide 29

2 Quick Start

NOTE

NOTE

To Output a Stored Arbitrary Waveform

Arbitrary waveforms are optionally available with the 33210A (Option 002).

There are five built-in arbitrary waveforms stored in non-volatile memory

The following steps show you how to output the built-in “exponential fall” waveform
from the front panel.

For information on creating a custom arbitrary waveform, refer to “To Create and
Store an Arbitrary Waveform” in the User’s Guide.

1 Select the arbitrary waveform function.

When you press the key to select the arbitrary waveform function,

a temporary message is displayed indicating which waveform is currently

selected (the default is “exponential rise”).

2 Select the active waveform.

Press the Select Wform softkey and then press the Built-In softkey to select

from the five built-in waveforms. Then press the Exp Fall softkey. The

waveform is output using the present settings for frequency, amplitude, and

offset unless you change them.

.

The selected waveform is now assigned to the key. Whenever you press

this key, the selected arbitrary waveform is output. To quickly determine which

arbitrary waveform is currently selected, press .

30 Keysight 33210A Service Guide

To Use the Built-In Help System

The built-in help system is designed to provide context-sensitive assistance on
any front-panel key or menu softkey. A list of help topics is also available to assist
you with several front-panel operations.

1 View the help information for a function key.

Quick Start 2

Press and hold down the key. If the message contains
than will fit on the display, press the ↓ softkey or turn the knob clockwise to
view the remaining information.

Press DONE to exit Help.

2 View the help information for a menu softkey.

Press and hold down the Freq softkey.
information than will fit on the display, press the ↓ softkey or rotate the knob
clockwise to view the remaining information.

Press DONE to exit Help.

If the message contains

more information

more

Keysight 33210A Service Guide 31

2 Quick Start

NOTE

3 View the list of help topics.

Press the key to view the list of available help topics. To scroll through

the list, press the ↑ or ↓ softkey or rotate the knob. Select the third topic “Get

HELP on any key” and then press SELECT.

Press DONE to exit Help.

4 View the help information for displayed messages.

Whenever a limit is exceeded or any other invalid configuration is found, the

function generator will display a message. For example, if you enter a value

that exceeds the frequency limit for the selected function, a message will be

displayed. The built-in help system provides additional information on the

most recent message to be displayed.

Press the key, select the first topic “

then press SELECT.

Press DONE to exit Help.

Local Language Help: The built-in help system in available in multiple
languages. All messages, context-sensitive help, and help topics appear in the
selected language. The menu softkey labels and status line messages are not
translated.

To select the local language, press the key, press the System softkey, and
then press the Help In softkey. Select the desired language.

32 Keysight 33210A Service Guide

View the last message displayed”, and

To Rack Mount the Function Generator

NOTE

Rear (bottom view)

Front

You can mount the Keysight 33210A in a standard 19-inch rack cabinet using one
of two optional kits available. Instructions and mounting hardware are included
with each rack-mounting kit. Any Keysight System II instrument of the same size
can be rack-mounted beside the Keysight 33210A.

Quick Start 2

Remove the carrying handle, and the front and rear rubber bumpers
rack-mounting the instrument.

To remove the handle, rotate it to vertical and pull the ends outward.

To remove the rubber bumper, stretch a corner and then slide it off.

, before

Keysight 33210A Service Guide 33

2 Quick Start

NOTE

To rack mount a single instrument, order adapter kit 5063-9240.

To rack mount two instruments side-by-side, order lock-link kit 5061- 8769 and
flange kit 5063-9212. Be sure to use the support rails in the rack cabinet.

In order to prevent overheating, do not block the flow of air into or out of the
instrument. Be sure to allow enough clearance at the rear, sides, and bottom of
the instrument to permit adequate internal air flow.

34 Keysight 33210A Service Guide

Keysight 33210A 10 MHz Function/Arbitrary Waveform Generator
Service Guide

3 Front-Panel Menu

Operation

Introduction 36
Front-Panel Menu Reference 37
To Select the Output Termination 41
To Reset the Function Generator 42
To Read the Calibration Information 43
To Unsecure and Secure for Calibration 44
To Store the Instrument State 47
To Configure the Remote Interface 48
To Reset the Function Generator 42

35

3 Front-Panel Menu Operation

Introduction

This chapter introduces you to the front-panel keys and menu operation. This
chapter does not give a detailed description of every front-panel key or menu
operation. It does, however, give you an overview of the front-panel menus and
many front-panel operations. Refer to the Keysight 33210A User’s Guide for a
complete discussion of the function generator’s capabilities and operation.

– Front-Panel Menu Reference on page 37

– To Select the Output Termination on page 41

– To Reset the Function Generator on page 42

– To Read the Calibration Information on page 43

– To Unsecure and Secure for Calibration on page 44

– To Store the Instrument State on page 47

– To Configure the Remote Interface on page 48

36 Keysight 33210A Service Guide

Front-Panel Menu Reference

This section gives an overview of the front-panel menus. The remainder of this
chapter contains examples of using the front-panel menus.

Configure the modulation parameters for AM, FM, and PWM.

– Select the modulation type.

– Select an internal or external modulation source.

– Specify AM modulation depth, modulating frequency, and modulation shape.

Specify FM frequency deviation, modulating frequency, and modulation shape.

–

– Specify PWM deviation, modulating frequency, and modulation shape.

Configure the parameters for frequency sweep.

– Select linear or logarithmic sweeping.

– Select the start / stop frequencies or

Front-Panel Menu Operation 3

center / span frequencies.

– Select the time in seconds required to complete a sweep.

– Specify a marker frequency.

– Specify an internal or external trigger source for the sweep.

– Specify the slope (rising or falling edge) for an external trigger source.

– Specify the slope (rising or falling edge) of the “Trig Out” signal.

Keysight 33210A Service Guide 37

3 Front-Panel Menu Operation

Configure the parameters for burst.

– Select the triggered (N Cycle) or externally-gated burst mode.

– Select the number of cycles per burst (1 to 50,000, or Infinite).

– Select the starting phase angle of the burst (-360° to +360°).

– Specify the time from the start of one burst to the start of the next burst.

– Specify an internal or external trigger source for the burst.

– Specify the slope (rising or falling edge) for an external trigger source.

– Specify the slope (rising or falling edge) of the “Trig Out” signal.

Store and recall instrument states.

– Store up to four instrument states in non-volatile memory.

– Assign a custom name to each storage location.

– Recall stored instrument states.

– Restore all instrument settings to their factory default values.

– Select the instrument’s power-on configuration (last or factory default).

38 Keysight 33210A Service Guide

Front-Panel Menu Operation 3

Configure system-related parameters.

– Generate a dc-only voltage level.

– Enable / disable the Sync signal which is output from the “Sync” connector.
– Select the output termination (1Ω to 10 kΩ, or Infinite).

– Enable / disable amplitude autoranging.

– Select the waveform polarity (normal or inverted).

– Select the GPIB address.

– Specify the LAN configuration (IP address and network configuration).

Select how periods and commas are used in numbers displayed on the front

–

panel.

– Select the local language for front-panel messages and help text.

– Enable / disable the tone heard when an error is generated.

– Enable / disable the display bulb-saver mode.

– Adjust the contrast setting of the front-panel display.

– Perform an instrument self-test.

– Secure/unsecure the instrument for calibration and perform manual

calibrations.

– Query the instrument’s firmware revision codes.

Keysight 33210A Service Guide 39

3 Front-Panel Menu Operation

View the list of Help topics.

– View the last message displayed.

– View the remote command error queue.

– Get HELP on any key.

– How to generate a dc-only voltage level.

– How to generate a modulated waveform.

– How to create an arbitrary waveform.

– How to reset the instrument to its default state.

– How to view a waveform in the Graph Mode.

– How to synchronize multiple instruments.

– How to obtain Keysight Technical Support.

40 Keysight 33210A Service Guide

To Select the Output Termination

The Keysight 33210A has a fixed series output impedance of 50 ohms to the
front-panel Output connector. If the actual load impedance is different than the
value specified, the displayed amplitude and offset levels will be incorrect. The
load impedance setting is simply provided as a convenience to ensure that the
displayed voltage matches the expected load.

1 Press .

2 Navigate the menu to set the output termination.

Press the Output Setup softkey and then select the Load softkey.

3 Select the desired output termination.

Use the knob or numeric keypad to select the desired load impedance or press
the Load softkey again to choose “High Z”.

Front-Panel Menu Operation 3

Keysight 33210A Service Guide 41

3 Front-Panel Menu Operation

To Reset the Function Generator

To reset the instrument to its factory default state, press and then select the
Set to Defaults softkey. Press YES to confirm the operation.

For a complete listing of the instrument’s power-on and reset conditions, see
“Keysight 33210A Factory Default Settings” in the User’s Guide.

42 Keysight 33210A Service Guide

To Read the Calibration Information

NOTE

You can access the instrument’s calibration memory to read the calibration count
and calibration message.

Calibration Count You can query the instrument to determine how many

calibrations have been performed. Note that your instrument was calibrated
before it left the factory. When you receive your instrument, read the count to
determine its initial value. The count value increments by one for each calibration
point, and a complete calibration may increase the value by many counts.

Calibration Message The instrument allows you to store one message in

calibration memory. For example, you can store the date when the last calibration
was performed, the date when the next calibration is due, the instrument’s serial
number, or even the name and phone number of the person to contact for a new
calibration.

You can record a calibration message only from the remote interface and only
when the instrument is unsecured.

You can read the message from either the front-panel or over the remote
interface. You can read the calibration message whether the instrument is
secured or unsecured.

Front-Panel Menu Operation 3

1 Select the Cal Info interface.

Press and then select the Cal Info softkey from the “Test/Cal” menu.
The first line in the display shows the calibration count.

The second line shows the calibration message.
The last line indicates the current version of the firmware.

The calibration information will time-out and disappear after a few seconds.
Select the Cal Info softkey to show the information again.

2 Exit the menu.

Press the DONE softkey.

Keysight 33210A Service Guide 43

3 Front-Panel Menu Operation

NOTE

To Unsecure and Secure for Calibration

This feature allows you to enter a security code to prevent accidental
or unauthorized adjustments of the instrument. When you first receive your
instrument, it is secured. Before you can adjust the instrument,
you must unsecure it by entering the correct security code.

– The security code is set to AT33210A when the instrument is shipped from the

factory. The security code is stored in non-volatile memory, and does not

change when power has been off, after a Factory Reset (*RST command), or

after an Instrument Preset (SYSTem:PRESet command).
– The security code may contain up to 12 alphanumeric characters.

The first character must be a letter, but the remaining characters

can be letters, numbers, or an underscore ( _ ). You do not have to

use all 12 characters but the first character must always be a letter.

If you forget your security code, you can disable the security feature by applying
a temporary short inside the instrument as described in

“To Unsecure the Instrument Without the Security Code” on page 78.

44 Keysight 33210A Service Guide

To Unsecure for Calibration

Use the knob to change the displayed character.

and

Use the arrow keys to move to the next character

1 Select the Secure Code interface.

Press and then select the Test/Cal softkey.

2 Enter the Secure Code.

When the last character of the secure code is entered, the instrument will be
unsecured.

3 Exit the menu.

Front-Panel Menu Operation 3

Press the DONE softkey.

Keysight 33210A Service Guide 45

3 Front-Panel Menu Operation

Use the knob to change the displayed character.

and

Use the arrow keys to move to the next character

To Secure After Calibration

1 Select the Secure Code interface.

Press and then select the Test/Cal softkey.

2 Enter a Secure Code.

Enter up to 12 alphanumeric characters. The first character must be

a letter.

Use the knob to change the displayed character. Use the arrow keys to move

to the next character.

3 Secure the Instrument.

Select the Secure softkey.

4Exit the menu.

Press the DONE softkey.

46 Keysight 33210A Service Guide

To Store the Instrument State

You can store the instrument state in one of four non-volatile storage locations. A
fifth storage location automatically holds the power-down configuration of the
instrument. When power is restored, the instrument can automatically return to its
state before power-down.

1 Select the desired storage location.

Press and then select the Store State softkey.

2 Select a custom name for the selected location.

If desired, you can assign a custom name to each of the four locations.

Front-Panel Menu Operation 3

– The name can contain up to 12 characters. The first character

letter but the remaining characters can be letters, numbers
underscore character ( “ _ ” ).

– To add additional characters, press the right-cursor key until the cursor is

to the right of the existing name and then turn the knob.

– To delete all characters to the right of the cursor position, press .

– To use numbers in the name, you can enter them directly from the numeric

keypad. Use the decimal point from the numeric keypad to add the
underscore charac ter ( “ _ ” ) to the name.

3 Store the instrument state.

Press the STORE STATE softkey. The instrument stores the selected function,
frequency, amplitude, dc offset, duty cycle, symmetry, as well as any
modulation parameters in use. The instrument does not store volatile
waveforms created in the arbitrary waveform function.

Keysight 33210A Service Guide 47

must be a

, or the

3 Front-Panel Menu Operation

NOTE

To Configure the Remote Interface

The Keysight 33210A supports remote interface communication using a choice of
three interfaces: GPIB, USB, and LAN (LXI Class C compliant). All three interfaces
are "live" at power up. The following sections tell how to configure the remote
interface from the instrument front panel.

Two CDs, provided with your instrument, contain connectivity software to enable
communications over the remote interfaces. See “Connectivity Software and
Product CDs” in the Keysight 33210A User’s Guide for further information on
these CDs and the software they contain.

GPIB Configuration

1 Select the “I/O” menu.

Press

2 Set the GPIB address.

Use the knob and cursor keys or the numeric keypad to select a GPIB address

in the range 0 through 30 (the factory default is “10”).

The GPIB address is shown on the front-panel display at power-on.

3Exit the menu.

Press the DONE softkey.

USB Configuration

The USB interface requires no front panel configuration parameters. Just connect
the Keysight 33210A to your PC with the appropriate USB cable. The interface will
self configure. Press the Show USB Id softkey in the “I/O menu” to see the USB
interface identification string. Both USB 1.1 and USB 2.0 are supported.

and then press the

I/O softkey.

48 Keysight 33210A Service Guide

LAN Configuration

There are several parameters that you may need to set to establish network
communication using the LAN interface. Primarily, you will need to establish an IP
address. You may need to contact your network administrator for help in
establishing communication with the LAN interface.

1 Select the “I/O” menu.

Front-Panel Menu Operation 3

Press

2 Select the “LAN” menu.

Press the LAN softkey.

You can select Modify Settings to change the LAN settings, or Current Config
to view the current LAN settings (including the MAC address).

Press

From this menu, you can select Reset LAN to restart the LAN, IP Setup to set
an IP address and related parameters, DNS Setup to configure DNS, or
Password to set a password for the Web Server Interface.

and then press the

Modify Settings

I/O softkey.

.

Keysight 33210A Service Guide 49

3 Front-Panel Menu Operation

NOTE

To set a password use the knob and cursor keys (use to delete all
characters to the right of the cursor position). The Web Server Interface will
prompt for the password to protect certain windows. For further information, see
“Keysight 33210A Web Interface” of the User’s Guide for the Keysight 33210A.

3 Establish an “IP Setup.”

To use the Keysight 33210A on the network, you must first establish an IP

setup, including an IP address, and possibly a subnet mask and gateway

address. Press the IP Setup softkey. By default, both DHCP and Auto IP are set

to On.

With DHCP On, an IP address will automatically be set by DHCP (Dynamic

Host Configuration Protocol) when you connect the Keysight 33210A to the

network, provided the DHCP server is found and is able to do so. DHCP also

automatically deals with the subnet mask and gateway address, if required.

This is typically the easiest way to establish LAN communication for your

instrument. All you need to do is leave DHCP On.

With Auto IP On, if DHCP fails to assign an IP address, Auto IP will attempt to

do so after a time-out period.

However, if you cannot establish communication by means of DHCP or Auto IP,

you will need to manually set an IP address, and a subnet mask and gateway

address if they are in use. Follow these steps:

50 Keysight 33210A Service Guide

Front-Panel Menu Operation 3

a Set the “IP Ad dress.”

Press the softkeys to select DHCP Off and Auto IP Off. The manual
selection softkeys appear and the current IP address is displayed:

Contact your network administrator for the IP address to use. All IP
addresses take the dot-notation form "nnn.nnn.nnn.nnn" where "nnn" in
each case is a byte value in the range 0 through 255. You can enter a new
IP address using the numeric keypad (not the knob). Just type in the
numbers and the period delimiters using the keypad. Use the left cursor
key as a backspace key. Do not enter leading zeros. For further information,
see “More about IP Addresses and Dot Notation” at the end of this section.

b Set the “Subnet Mask.”

The subnet mask is required if your network has been divided into subnets.
Ask your network administrator whether a subnet mask is needed, and for
the correct mask. Press the Subnet Mask softkey and enter the subnet
mask in the IP address format (using the keypad).

c Set the “Default Gateway.”

The gateway address is the address of a gateway, which is a device that
connects two networks. Ask your network administrator whether a gateway
is in use and for the correct address. Press the Default Gateway softkey
and enter the gateway address in the IP address format (using the keypad).

d Exit the “IP Setup” menu.

Press DONE to return to the "Modify Settings" menu.

Keysight 33210A Service Guide 51

3 Front-Panel Menu Operation

4 Configure the “DNS Setup” (optional).

DNS (Domain Name Service) is an Internet service that translates domain

names into IP addresses. Ask your network administrator whether DNS is in

use, and if it is, for the host name, domain name, and DNS server address to

use.

Start at the “Modify Settings” menu.

Press the DNS Setup softkey to display the “Host Name” field.

a Set the “Host Name.”

Enter the host name. The host name is the host portion of the domain
name, which is translated into an IP address. The host name is entered as a
string using the knob and cursor keys to select and change characters. The
host name may include letters, numbers, and dashes (“-”). You can use the
keypad for the numeric characters only.

Press to delete all characters to the right of the cursor position.

b Set the “Domain Name.”

Press the Domain Name softkey and enter the domain name. The domain
name is translated into an IP address. The domain name is entered as a
string using the knob and cursor keys to select and change characters. The
domain name may include letters, numbers, dashes (“-”), and periods (“.“).
You can use the keypad for the numeric characters only.

Press to delete all characters to the right of the cursor position.

c Set the “DNS Server” address.

Press the DNS Server softkey and enter the address of the DNS server in
the IP address format (using the keypad).

52 Keysight 33210A Service Guide

5 Exit the menus.

NOTE

Front-Panel Menu Operation 3

Press DONE to exit each menu in turn, or p
directly.

ress

to exit the “Utility” menu

More about IP Addresses and Dot Notation

Dot-notation addresses ("nnn.nnn.nnn.nnn" where "nnn" is a byte value) such as
IP addresses must be expressed with care. This is because most web software on
the PC will interpret byte values with leading zeros as octal numbers. Thus,
"255.255.020.011" is actually equivalent to the decimal "255.255.16.9" rather
than "255.255.20.11" because ".020" is interpreted as "16" expressed in octal,
and ".011" as "9". To avoid confusion it is best to use only decimal expressions of
byte values (0 to 255), with no leading zeros.

The Keysight 33210A assumes that all IP addresses and other dot-notation
addresses are expressed as decimal byte values, and strips all leading zeros
from these byte values. Thus, if you try to enter "255.255.020.011" in the IP
address field, it becomes "255.255.20.11" (a purely decimal expression). You
should enter exactly the same expression, "255.255.20.11" in your PC web
software to address the instrument. Do not use "255.255.020.011"—the PC will
interpret that address differently due to the leading zeros.

Keysight 33210A Service Guide 53

3 Front-Panel Menu Operation

THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.

54 Keysight 33210A Service Guide

Keysight 33210A 10 MHz Function/Arbitrary Waveform Generator
Service Guide

4 Calibration Procedures

Introduction 57
Keysight Technologies Calibration Services 58
Calibration Interval 58
Adjustment is Recommended 59
Time Required for Calibration 60
Automating Calibration Procedures 61
Recommended Test Equipment 62
Test Considerations 63
Performance Verification Tests 64
Internal Timebase Verification 68
AC Amplitude (high-impedance) Verification 69
Low Frequency Flatness Verification 71
0 dB Range Flatness Verification 72
+10 dB Range Flatness Verification 74
+20 dB Range Flatness Verification 76
Calibration Security 78
Calibration Message 80
Calibration Count 81
General Calibration/Adjustment Procedure 82
Aborting a Calibration in Progress 83
Sequence of Adjustments 84
Self-Test 85
Frequency (Internal Timebase) Adjustment 86
Internal ADC Adjustment/Self Calibration 88
Calibration Message 80
Calibration Count 81
General Calibration/Adjustment Procedure 82
Aborting a Calibration in Progress 83

55

4 Calibration Procedures

Sequence of Adjustments 84

Self-Test 85

Frequency (Internal Timebase) Adjustment 86

Internal ADC Adjustment/Self Calibration 88

Output Impedance Adjustment 90

AC Amplitude (high-impedance) Adjustment 92

Low Frequency Flatness Adjustment 94

0 dB Range Flatness Adjustments 96

+10 dB Range Flatness Adjustments 98

+20 dB Range Flatness Adjustment 100

Calibration Errors 103

56 Keysight 33210A Service Guide

Introduction

Calibration Procedures 4

This chapter contains procedures for verification of the instrument's performance
and adjustment (calibration). The chapter is divided into the following sections:

– Keysight Technologies Calibration Services on page 58

– Calibration Interval on page 58

– Adjustment is Recommended on page 59

– Time Required for Calibration on page 60

– Automating Calibration Procedures on page 61

– Recommended Test Equipment on page 62

– Test Considerations on page 63

– Performance Verification Tests on page 64

– Internal Timebase Verification on page 68

– AC Amplitude (high-impedance) Verification on page 69

– Low Frequency Flatness Verification on page 71

– 0 dB Range Flatness Verification on page 72

– +10 dB Range Flatness Verification on page 74

– +20 dB Range Flatness Verification on page 76

– Calibration Security on page 78

– Calibration Message on page 80

– Calibration Count on page 81

– General Calibration/Adjustment Procedure on page 82

– Aborting a Calibration in Progress on page 83

– Sequence of Adjustments on page 84

– Self-Test on page 85

– Frequency (Internal Timebase) Adjustment on page 86

– Internal ADC Adjustment/Self Calibration on page 88

– Output Impedance Adjustment on page 90

Keysight 33210A Service Guide 57

4 Calibration Procedures

– AC Amplitude (high-impedance) Adjustment on page 92

– Low Frequency Flatness Adjustment on page 94

– 0 dB Range Flatness Adjustments on page 96

– +10 dB Range Flatness Adjustments on page 98

– +20 dB Range Flatness Adjustment on page 100

– Calibration Errors on page 103

Closed-Case Electronic Calibration The instrument features closed-case

electronic calibration. No internal mechanical adjustments are required. The
instrument calculates correction factors based upon the input reference value you
set. The new correction factors are stored in non-volatile memory until the next
calibration adjustment is performed. Non-volatile EEPROM calibration memory
does not change when power has been off or after a remote interface reset.

Keysight Technologies Calibration Services

Keysight Technologies offers calibration services at competitive prices. When your
instrument is due for calibration, contact your local Keysight Service Center for
recalibration. See "Types of Service Available" on page 114 for information on
contacting Keysight.

Calibration Interval

The instrument should be calibrated on a regular interval determined by the
measurement accuracy requirements of your application.

A 1-year interval is adequate for most applications. Accuracy specifications will
remain valid only if adjustment is made at regular calibration intervals. Accuracy
specifications are not valid beyond the 1-year calibration interval. Keysight does
not recommend extending calibration intervals beyond 2 years for any application.

58 Keysight 33210A Service Guide

Adjustment is Recommended

Specifications are valid only within the period stated from the last adjustment.
Whatever calibration interval you select, Keysight recommends that complete
re-adjustment always be performed at the calibration interval. This is necessary to
ensure that the instrument will remain within specification for the next calibration
interval. This criteria for re-adjustment provides the best long-term stability.

Performance data measured during Performance Verification Tests does not mean
that the instrument will remain within these limits unless the adjustments are
performed.

Use the "Calibration Count" feature (see page 81) to verify that all adjustments
have been performed.

Calibration Procedures 4

Keysight 33210A Service Guide 59

4 Calibration Procedures

START

Incoming

Verification?

YES

NO

Perform

Adjustments

(approx 1 Hour)

Do Performance

Verification Tests

(approx 1 Hour)

Do Performance

Verification Tests

(approx 1 Hour)

DONE

Time Required for Calibration

The Keysight 33210A can be automatically calibrated under computer control. With
computer control you can perform the complete calibration procedure and
performance verification tests in approximately 30 minutes once the instrument is
warmed-up (see Test Considerations on page 63). Manual adjustments and
verifications, using the recommended test equipment, will take approximately 2
hours.

60 Keysight 33210A Service Guide

Automating Calibration Procedures

You can automate the complete verification and adjustment procedures outlined
in this chapter if you have access to programmable test equipment. You can
program the instrument configurations specified for each test over the remote
interface. You can then enter read-back verification data into a test program and
compare the results to the appropriate test limit values.

You can also adjust the instrument from the remote interface. Remote adjustment
is similar to the local front-panel procedure. You can use a computer to perform
the adjustment by first selecting the required function and range. The calibration
value is sent to the instrument and then the calibration is initiated over the remote
interface. The instrument must be unsecured prior to initiating the calibration
procedure.

For further information on programming the instrument, see Chapters 3 and 4 in
the Keysight 33210A User’s Guide.

Calibration Procedures 4

Keysight 33210A Service Guide 61

4 Calibration Procedures

Recommended Test Equipment

The test equipment recommended for the performance verification and
adjustment procedures is listed below. If the exact instrument is not available,
substitute calibration standards of equivalent accuracy.

Instrument Requirements Recommended Model

Digital Multimeter
(DMM)

Power Meter 100 kHz to 100 MHz

Power Head 100 kHz to 100 MHz

Attenuator –20 dB Keysight 8491A Opt 020 Q, P, T

Frequency Meter accuracy: 0.1 ppm Keysight 53131A Opt 010 (high stability) Q, P, T

Oscilloscope

Adapter N type (m) to BNC (m) N type (m) to BNC (m) Q, P, T

Cable BNC (m) to dual-banana (f ) Keysight 10110B Q, P, T

Cable (2 required) Dual banana (m) to dual banana (m) Keysight 11000-60001 Q, P, T

Cable RG58, BNC (m) to dual banana Keysight 11001-60001 Q, P, T

Cable RG58, BNC (m) to BNC (m) Keysight 8120-1840 Q, P, T

[b]

ac volts, true rms, ac coupled
accuracy: ±0.02% to 1 MHz
dc volts
accuracy: 50 ppm

resolution: 100 μV
Resistance
Offset-compensated

accuracy: ±0.1Ω

1 μW to 100 mW (–30 dBm to +20 dBm)
accuracy: 0.02 dB
resolution: 0.01 dB

1 μW to 100 mW (–30 dBm to +20 dBm)

500 MHz
2 Gs/second
50Ω input termination

Keysight 3458A Q, P, T

Keysight E4418B Q, P, T

Keysight 8482A Q, P, T

Keysight 54831B T

Use

[a]

[a] Q = Quick Verification P = Performance Verification T = Troubleshooting

[b] An oscilloscope is not required for calibration, only for troubleshooting.

62 Keysight 33210A Service Guide

Test Considerations

For optimum performance, all procedures should comply with the following
recommendations:

– Assure that the calibration ambient temperature is stable and between 21 °C

and 25 °C (23 °C

– Assure ambient relative humidity is less than 80%.

– Allow a 1-hour warm-up period before verification or adjustment.

– Keep the measurement cables as short as possible, consistent with the

impedance requirements.

Calibration Procedures 4

±2 °C).

– Use only RG-58 or equivalent 50

Ω cable.

Keysight 33210A Service Guide 63

4 Calibration Procedures

Performance Verification Tests

Use the Performance Verification Tests to verify the measurement performance of
the instrument. The performance verification tests use the instrument’s
specifications listed in the “Specifications” chapter beginning on page 15.

You can perform three different levels of performance verification tests:

– Self-Test A series of internal verification tests that give high confidence that

the instrument is operational.

– Quick Verification A combination of the internal self-tests and selected

verification tests.

– Performance Verification Tests An extensive set of tests that are

recommended as an acceptance test when you first receive the instrument or

after performing adjustments.

Self-Test

A brief power-on self-test occurs automatically whenever you turn on the
instrument. This limited test assures that the instrument is operational.

To perform a complete self-test:

1 Press on the front panel.

2 Select the Self Test softkey from the “Test/Cal” menu.

A complete description of the self-tests can be found in Chapter 6.

The instrument will automatically perform the complete self-test procedure

when you release the key. The self-test will complete in approximately

15 seconds.

– If the self-test is successful, “Self Test Passed” is displayed on the

front panel.

– If the self-test fails, “Self Test Failed” and an error number are displayed.

– If repair is required, see Chapter 6, "Disassembly and Repair", for further

details.

64 Keysight 33210A Service Guide

Quick Performance Check

The quick performance check is a combination of internal self-test and an
abbreviated performance test (specified by the letter Q in the performance
verification tests). This test provides a simple method to achieve high confidence
in the instrument's ability to functionally operate and meet specifications. These
tests represent the absolute minimum set of performance checks recommended
following any service activity. Auditing the instrument’s performance for the quick
check points (designated by a Q) verifies performance for normal accuracy drift
mechanisms. This test does not check for abnormal component failures.

To perform the quick performance check, do the following:

1 Perform a complete self-test. A procedure is given on page 64.
2 Perform only the performance verification tests indicated with the

letter Q.

3 If the instrument fails the quick performance check, adjustment or repair is

required.

Performance Verification Tests

Calibration Procedures 4

The performance verification tests are recommended as acceptance tests when
you first receive the instrument. The acceptance test results should be compared
against the specifications given in Chapter 1. After acceptance, you should repeat
the performance verification tests at every calibration interval.

If the instrument fails performance verification, adjustment or repair is required.

Adjustment is recommended at every calibration interval. If adjustment is not
made, you must guard band, using no more than 80% of the specifications listed
in Chapter 1, as the verification limits.

Special Note:
Amplitude and Flatness Verification Procedures

Measurements made during the "AC Amplitude (high-impedance) Verification"
procedure (see page 69) are used as reference measurements in the flatness
verification procedures (beginning on page 71). Additional reference
measurements and calculated references are used in the flatness verification
procedures. Photo-copy and use the table on page 67 to record these reference
measurements and perform the calculations.

Keysight 33210A Service Guide 65

4 Calibration Procedures

The flatness verification procedures use both a DMM and a Power Meter to make
the measurements. To correct the difference between the DMM and Power Meter
measurements, the Power Meter reference measurement level is adjusted to set
the 0.00 dB level to the DMM measurement made at 1 kHz. The flatness error of
the DMM at 100 KHz is used to set the required 0.00 dB reference.

The instrument internally corrects the difference between the high-Z input of the
DMM and the 50 Ω input of the Power Meter when setting the output level.

The reference measurements must also be converted from Vrms (made by the
DMM) to dBm (made by the Power Meter).

The equation used for the conversion from Vrms (High-Z) to dBm (at 50 Ω) is as
follows:

Power (dBm) = 10 log(5.0 * V

Flatness measurements for the –10 db, –20d B, and –30 dB attenuator ranges are
verified as a part of the 0 dB verification procedure. No separate verification
procedure is given for these ranges.

rms

2

)

66 Keysight 33210A Service Guide

Amplitude and Flatness Verification Worksheet

1 Enter the following measurements (from procedure on page 69).

1kHz_0dB_reference = __________________________ Vrms

1kHz_10dB_reference = __________________________ Vrms

1kHz_20dB_reference = __________________________ Vrms

2 Calculate the dBm value of the rms vol tages.

1kHz_0dB_reference_dBm =

1kHz_10dB_reference_dBm =

1kHz_20dB_reference_dBm =

3 Enter the following measurements (from the procedure on page 71).

100kHz_0dB_reference = __________________________ Vrms

100kHz_10dB_reference = __________________________ Vrms

100kHz_20dB_reference = __________________________ Vrms

4 Calculate the dBm value of the rms vol tages.

100kHz_0dB_reference_dBm =

100kHz_10dB_reference_dBm =

100kHz_20dB_reference_dBm =

5 Calculate the offset values.

100kHz_0dB_offset

100kHz_10dB_offset

100kHz_20dB_offset

10 * log(5.0 * 1kHz_0dB_reference

=

__________________________ dBm

10 * log(5.0 * 1kHz_10dB_reference

=

__________________________ dBm

10 * log(5.0 * 1kHz_20dB_reference

=

__________________________ dBm

10 * log(5.0 * 100kHz_0dB_reference

=

__________________________ dBm

10 * log(5.0 * 100kHz_10dB_reference

=

__________________________ dBm

10 * log(5.0 * 100kHz_20dB_reference

=

__________________________ dBm

==100kHz_0dB_reference_dBm – 1kHz_0dB_reference_dBm

__________________________ dBm (use on page 72)

=

100kHz_10dB_reference_dBm

=

__________________________ dBm (use on page 74)

==100kHz_20dB_reference_dBm – 1kHz_20dB_reference_dBm

__________________________ dBm (use on page 76)

Calibration Procedures 4

2

)

2

)

2

)

2

)

2

)

2

)

– 1kHz_10dB_reference_dBm

Keysight 33210A Service Guide 67

4 Calibration Procedures

Internal Timebase Verification

This test verifies the output frequency accuracy of the instrument. All output
frequencies are derived from a single generated frequency.

1 Connect a frequency counter as shown below (the frequency counter input

should be terminated at 50 Ω).

2 Set the instrument to the output described in the table below and measure the

output frequency. Be sure the instrument output is enabled.

Keysight 33210A Measurement

Function Amplitude Frequency Nominal Error

Q Sine Wave 1.00 Vpp 10.000,000,0 MHz 10.000 MHz

± 200 Hz

[a]

[a] The error is ± 100 Hz within 90 days of calibration, or ± 200 Hz within one year.

3 Compare the measured frequency to the test limits shown in the table.

68 Keysight 33210A Service Guide

AC Amplitude (high-impedance) Verification

This procedure checks the ac amplitude output accuracy at a frequency of 1 kHz,
and establishes reference measurements for the higher frequency flatness
verification procedures.

1 Set the DMM to measure Vrms Volts. Connect the DMM as shown below.

2 Set the instrument to each output described in the table below and measure

the output voltage with the DMM. Press to set the output impedance to
High–Z. Be sure the output is enabled.

Calibration Procedures 4

Keysight 33210A Measurement

Output Setup Function Frequency Amplitude Nominal

Q High Z Sine Wave 1.000 kHz 20.0 mVrms 0.020 Vrms ± 0.00091 Vrms

Q High Z Sine Wave 1.000 kHz 67.0 mVrms 0.067 Vrms ± 0.00138 Vrms

Q High Z Sine Wave 1.000 kHz 200.0 mVrms 0.200 Vrms ± 0.00271 Vrms

[b]

Q High Z Sine Wave 1.0v00 kHz 670.0 mVrms

Q High Z Sine Wave 1.000 kHz 2.000 Vrms

Q High Z Sine Wave 1.000 kHz 7.000 Vrms

Q High Z

[a] Based upon 1% of setting ±1 mVpp (50 W); converted to Vrms for High–Z.

[b] Enter the measured value on the worksheet (76) as 1kHz_0dB_reference.

[c] Enter the measured value on the worksheet (76) as 1kHz_10dB_reference.

Square Wave

[a]

1.000 kHz 900.0 mVrms 0.900 Vrms ± 0.0100 Vrms

0.670 Vrms

2.0000 Vrms

7.000 Vrms

± 0.00741 Vrms

[c]

± 0.0207 Vrms

[d]

± 0.0707 Vrms

Error

[a]

Keysight 33210A Service Guide 69

4 Calibration Procedures

[d] Enter the measured value on the worksheet (76) as 1kHz_20dB_reference.

3 Compare the measured voltage to the test limits shown in the table.

70 Keysight 33210A Service Guide

Low Frequency Flatness Verification

This procedure checks the AC amplitude flatness at 100 kHz using the reference
measurements recorded in the "Amplitude and Flatness Verification Worksheet".
These measurements also establish an error value used to set the power meter
reference. The transfer measurements are made at a frequency of 100 kHz using
both the DMM and the power meter.

1 Set the DMM to measure ac Volts. Connect the DMM as shown in the figure on

page 69.

2 Set the instrument to each output described in the table below and measure

the output voltage with the DMM. Press to set the output impedance to

High-Z. Be sure the output is enabled.

Keysight 33210A Measurement

Output Setup Function Frequency Amplitude Nominal Error

Q High Z Sine Wave 100.000 kHz 670.0 mVrms

Q High Z Sine Wave 100.000 kHz 2.000 Vrms

Q High Z Sine Wave 100.000 kHz 7.000 Vrms

Calibration Procedures 4

[a]

0.670 Vrms

2.000 Vrms

7.000 Vrms

± 0.0067 Vrms

[b]

± 0.020 Vrms

[c]

± 0.070 Vrms

[a] Enter the measured value on the worksheet (page 67) as 100kHz_0dB_reference.

[b] Enter the measured value on the worksheet (page 67) as 1k00Hz_10dB_reference.

[c] Enter the measured value on the worksheet (page 67) as 100kHz_20dB_reference.

3 Compare the measured voltage to the test limits shown in the table.

4 You have now recorded all the required measurements on the worksheet (page

67). Complete the worksheet by making all the indicated calculations.

Keysight 33210A Service Guide 71

4 Calibration Procedures

0 dB Range Flatness Verification

This procedure checks the high frequency ac amplitude flatness above 100 kHz on
the 0dB attenuator range. (Flatness is relative to 1 kHz.)

1 Connect the power meter to measure the output amplitude of the instrument

as shown below.

2 Set up the function generator as follows:

– Output impedance: 50 Ω (press and select Output Setup).

–Waveform: Sine

– Frequency: 100 kHz

– Amplitude: 3.51 dBm

Make sure the output is enabled.

3 On the power meter, use the Relative Power function to set the current reading

as the reference value. This will allow you to compare future measurement

results in dB.

4 Set the power meter offset to equal the 100kHz_0dB_offset value previously

calculated. This sets the power meter to directly read the flatness error

specification relative to 1 kHz. 100kHz_0dB_offset is calculated on the

"Amplitude and Flatness Verification Worksheet".

72 Keysight 33210A Service Guide

Calibration Procedures 4

5 Set the function generator to each output described in the table below and

measure the output amplitude with the power meter (the relative
measurement in dB).

Keysight 33210A Measurement

Output Setup Function Amplitude Frequency Nominal Error

Q 50 Ω Sine Wave +3.51 dBm 100.000 kHz 0 dB ± 0.1 dB

50 Ω Sine Wave +3.51 dBm 200.000 kHz 0 dB ± 0.2 dB

50 Ω Sine Wave +3.51 dBm 500.000 kHz 0 dB ± 0.2 dB

50 Ω Sine Wave +3.51 dBm 2.000 MHz 0 dB ± 0.2 dB

50 Ω Sine Wave +3.51 dBm 3.000 MHz 0 dB ± 0.2 dB

Q 50 Ω Sine Wave +3.51 dBm 4.000 MHz 0 dB ± 0.2 dB

50 Ω Sine Wave +3.51 dBm 5.000 MHz 0 dB ± 0.2 dB

50 Ω Sine Wave +3.51 dBm 8.000 MHz 0 dB ± 0.3 dB

Q 50 Ω Sine Wave +3.51 dBm 10.000 MHz 0 dB ± 0.3 dB

6 Compare the measured output to the test limits shown in the table.

Keysight 33210A Service Guide 73

4 Calibration Procedures

+10 dB Range Flatness Verification

This procedure checks the high frequency ac amplitude flatness above 100 kHz on
the +10dB attenuator range. (Flatness is relative to 1 kHz.)

1 Connect the power meter to measure the output amplitude of the instrument

as shown on page 72.

2 Set up the function generator as follows:

– Output impedance: 50 Ω (press and select Output Setup).

–Waveform: Sine

– Frequency: 100 kHz

– Amplitude: 13.00 dBm

Make sure the output is enabled.

3 On the power meter, use the Relative Power function to set the current reading

as the reference value. This will allow you to compare future measurement

results in dB.

4 Set the power meter offset to equal the 100kHz_10dB_offset value previously

calculated. This sets the power meter to directly read the flatness error

specification relative to 1 kHz. 100kHz_10dB_offset is calculated on the

"Amplitude and Flatness Verification Worksheet".

5 Set the instrument to each output described in the table below and measure

the output amplitude with the power meter (the relative measurement in dB).

Keysight 33210A Measurement

Output Setup Function Amplitude Frequency Nominal Error

Q 50 Ω Sine Wave +13.00 dBm 100.000 kHz 0 dB ± 0.1 dB

50 Ω Sine Wave +13.00 dBm 200.000 kHz 0 dB ± 0.2 dB

50 Ω Sine Wave +13.00 dBm 500.000 kHz 0 dB ± 0.2 dB

50 Ω Sine Wave +13.00 dBm 2.000 MHz 0 dB ± 0.2 dB

50 Ω Sine Wave +13.00 dBm 3.000 MHz 0 dB ± 0.2 dB

Q 50 Ω Sine Wave +13.00 dBm 4.000 MHz 0 dB ± 0.2 dB

50 Ω Sine Wave +13.00 dBm 5.000 MHz 0 dB ± 0.2 dB

74 Keysight 33210A Service Guide

Calibration Procedures 4

Keysight 33210A Measurement

Output Setup Function Amplitude Frequency Nominal Error

50 Ω Sine Wave +13.00 dBm 8.000 MHz 0 dB ± 0.3 dB

Q 50 Ω Sine Wave +13.00 dBm 10.000 MHz 0 dB ± 0.3 dB

6 Compare the measured output to the test limits shown in the table.

Keysight 33210A Service Guide 75

4 Calibration Procedures

CAUTION

+20 dB Range Flatness Verification

This procedure checks the high frequency ac amplitude flatness above 100 kHz on
the +20dB attenuator range. (Flatness is relative to 1 kHz.)

1 Connect the power meter to measure the output voltage of the instrument as

shown below.

Most power meters will require an attenuator or special power head to
measure the +20 dB output.

2 Set up the function generator as follows:

– Output impedance: 50 Ω (press and select Output Setup).

–Waveform: Sine

– Frequency: 100 kHz

– Amplitude: 23.90 dBm

Make sure the output is enabled.

76 Keysight 33210A Service Guide

Calibration Procedures 4

3 On the power meter, use the Relative Power function to set the current reading

as the reference value. This will allow you to compare future measurement
results in dB.

4 Set the power meter offset to equal the 100kHz_20dB_offset value previously

calculated. This sets the power meter to directly read the flatness error
specification relative to 1 kHz. 100kHz_20dB_offset is calculated on the

"Amplitude and Flatness Verification Worksheet".

5 Set the instrument to each output described in the table below and measure

the output amplitude with the power meter.

Keysight 33210A Measurement

Output Setup Function Amplitude Frequency Nominal Error

Q 50 Ω Sine Wave +23.90 dBm 100.000 kHz 0 dB ± 0.1 dB

50 Ω Sine Wave +23.90 dBm 200.000 kHz 0 dB ± 0.2 dB

50 Ω Sine Wave +23.90 dBm 500.000 kHz 0 dB ± 0.2 dB

50 Ω Sine Wave +23.90 dBm 2.000 MHz 0 dB ± 0.2 dB

50 Ω Sine Wave +23.90 dBm 3.000 MHz 0 dB ± 0.2 dB

Q 50 Ω Sine Wave +23.90 dBm 4.000 MHz 0 dB ± 0.2 dB

50 Ω Sine Wave +23.90 dBm 5.000 MHz 0 dB ± 0.2 dB

50 Ω Sine Wave +23.90 dBm 8.000 MHz 0 dB ± 0.3 dB

Q 50 Ω Sine Wave +23.90 dBm 10.000 MHz 0 dB ± 0.3 dB

6 Compare the measured output to the test limits shown in the table.

Keysight 33210A Service Guide 77

4 Calibration Procedures

NOTE

NOTE

Calibration Security

This feature allows you to enter a security code to prevent accidental
or unauthorized adjustments of the instrument. When you first receive your
instrument, it is secured. Before you can adjust the instrument,
you must unsecure it by entering the correct security code.

See “To Unsecure and Secure for Calibration” on page 44 for a procedure to enter
the security code from the front panel. Use the CAL:SEC:STAT ON command to
enter the security code using the remote interface.

– The security code is set to AT33210A when the instrument is shipped from the

factory. The security code is stored in non-volatile memory, and does not

change when power has been off, after a Factory Reset (*RST command), or

after an Instrument Preset (SYSTem:PRESet command).
– The security code may contain up to 12 alphanumeric characters.

The first character must be a letter, but the remaining characters

can be letters, numbers, or an underscore ( _ ). You do not have to

use all 12 characters but the first character must always be a letter.

If you forget your security code, you can disable the security feature by applying
a temporary short inside the instrument as described below.

To Unsecure the Instrument Without the Security Code

To unsecure the instrument without the correct security code, follow the steps
below. See “To Unsecure and Secure for Calibration” on page 44. See

“Electrostatic Discharge (ESD) Precautions” on page 116 before beginning this

procedure.

If you do not have a record of the security code, there are two codes you may
wish to try before you use the procedure below. First try AT33210A (the factory
default code). If that code does not work, you may wish to try the single letter A
as the security code. If someone has re-secured calibration without entering a
new code, the defaul t code is the letter A.

1 Disconnect the power cord and all input connections.

78 Keysight 33210A Service Guide

Calibration Procedures 4

U101

U102

Pads

WARNING

2 Disassemble the instrument using the “General Disassembly Procedure” on

page 123.

3 Apply a temporary short between the two exposed metal pads on the

A1 assembly. The general location is shown in the figure below. On the PC
board, the pads are marked CAL ENABLE.

Keysight 33210A Service Guide 79

4 Apply power and turn on the instrument.

Be careful not to touch the power line connections or high voltages on the
power supply module. Power is present even if the instrument is turned off.

5 The display will show the message “Calibration security has been disabled”.

The instrument is now unsecured.

6 Turn off the instrument and remove the power cord.

7 Reassemble the instrument.

Now you can enter a new security code, see “To Unsecure and Secure for

Calibration” on page 44. Be sure you record the new security code.

4 Calibration Procedures

Calibration Message

The instrument allows you to store one message in calibration memory. For
example, you can store the date when the last calibration was performed, the date
when the next calibration is due, the instrument's serial number, or even the name
and phone number of the person to contact for a new calibration.

You can record a calibration message only from the remote interface and only
when the instrument is unsecured. Use the CAL:STRING <message> command.

You can read the message from either the front-panel or over the remote
interface. You can read the calibration message whether the instrument is secured
or unsecured. Reading the calibration message from the front panel is described
on “To Read the Calibration Information” on page 43. Use the CAL:STRING?
query to read the message over the remote interface.

80 Keysight 33210A Service Guide

Calibration Count

You can query the instrument to determine how many calibrations have been
performed. Note that your instrument was calibrated before it left the factory.
When you receive your instrument, read the count to determine its initial value.
The count value increments by one for each calibration point, and a complete
calibration may increase the value by many counts. See “To Read the Calibration

Information” on page 43. Use the CAL:COUNT? query to read the count over the

remote interface.

Calibration Procedures 4

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4 Calibration Procedures

NOTE

General Calibration/Adjustment Procedure

The following procedure is the recommended method to complete an instrument
calibration. This procedure is an overview of the steps required for a complete
calibration. Additional details for each step in this procedure are given in the
appropriate sections of this chapter.

1 Read "Test Considerations" on page 63.

2 Unsecure the instrument for calibration (see page 78).

3 Perform the verification tests, beginning on page 64, to characterize the

instrument (incoming data).

4 Press on the front panel.

5 Select the “Test / Cal” menu.

6 Select Perform Cal.

7 Enter the Setup Number for the procedure being performed. The default setup

number is “1” and, from the front panel, the number will increment as the

procedures are performed.

8 Select BEGIN.

9 For setups that require an input, adjust the value shown in the display to the

measured value and select ENTER VALUE.

10 The setup will automatically advance to the next required value.

To cancel the adjustment procedure, select CANCEL STEP. The display will
return to the setup number entry.

11 When finished, select END CAL.

12 Secure the instrument against calibration.

13 Note the new security code and calibration count in the instrument’s

maintenance records.

82 Keysight 33210A Service Guide

Aborting a Calibration in Progress

CAUTION

Sometimes it may be necessary to abort a calibration after the procedure has
already been initiated. You can abort a calibration at any time by turning off the
power. When performing a calibration from the remote interface, you can abort a
calibration by issuing a remote interface device clear message followed by a *RST.

The instrument stores calibration constants at the end of each adjustment
procedure. If you lose power, or otherwise abort an adjustment in progress, you
will only need to perform the interrupted adjustment procedure again.

If power is lost when the instrument is attempting to write new calibration
constants to EEPROM, you may lose all calibration constants for the
function. Typically, upon re-applying power, the instrument will report error
“-313, Calibration Memory Lost”.

Calibration Procedures 4

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4 Calibration Procedures

Sequence of Adjustments

The adjustment sequence shown in the following sections of this chapter is
recommended to minimize the number of test equipment set-up and connection
changes.

You may perform individual adjustments as necessary. Setups 1 through 7 must be
performed in order and must be performed before any other setup procedure.

84 Keysight 33210A Service Guide

Self-Test

NOTE

NOTE

Calibration Procedures 4

Self-Test is performed as the first step to ensure the instrument is in working
order before beginning any additional adjustments.

Be sure to follow the requirements listed in “Test Considerations” on page 63
before beginning any adjustments.

1 Press on the front panel. Select Perform Cal on the “Test / Cal” menu.

Enter setup number “1” and select BEGIN.

Setup

1 Performs the Self-test. The Main Output is disabled during test.

2 If the instrument fails any self-test, you must repair the instrument before

continuing the adjustment procedures.

The self-test procedure takes approximately 15 seconds to complete.

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4 Calibration Procedures

Frequency (Internal Timebase) Adjustment

The function generator stores a calibration constant that sets the VCXO to output
exactly 10 MHz.

1 Set the frequency counter resolution to better than 0.1 ppm and the input

termination to 50 Ω (if your frequency counter does not have a 50 Ω input

termination, you must provide an external termination). Make the connections

shown below.

2 Use a frequency counter to measure the output frequency for each setup in the

following table.

Setup

2 <10 MHz 1 Vpp Output frequency is slightly less than 10MHz

3 >10 MHz 1 Vpp Output frequency is slightly more than 10MHz

4 ~10 MHz 1 Vpp Output frequency should be near 10MHz

[a]

5

[a] Constants are stored after completing this setup.

Nominal Signal

Frequency Amplitude

10 MHz 1 Vpp Output frequency should be 10MHz ±1ppm

3 Using the numerical keypad or knob, adjust the displayed frequency at each

setup to match the measured frequency. Select ENTER VALUE.

4 After performing setup 5:

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Calibration Procedures 4

a If your calibration procedures require you to verify the adjustment just

made, exit the calibration menu and perform “Internal Timebase

Verification” on page 68.

b If you are making all the adjustments and then verifying the instrument’s

performance, continue with the next procedure in this chapter.

Keysight 33210A Service Guide 87

4 Calibration Procedures

Modulation In

NOTE

Internal ADC Adjustment/Self Calibration

The function generator stores calibration constants related to the gain and offset
of the internal ADC. Setup 6 must always be performed before any later
adjustments are attempted. The internal ADC is then used as a source for the
calibration constants generated in setup 7.

1 Make the connections as shown below.

2 Set the DMM to display 5 1/2 digits.
3 Enter the following setup, and then measure the dc value.

Nominal Signal

Setup DC level

[a]

6

[a] Constants are stored after completing this setup.

~1.1 Vdc ±10% Calibrates the internal ADC.

4 Enter the measured value of the dc source using the numeric keypad or knob.

This setup requires approximately 15 seconds to complete.

5 Disconnect all cables from the rear panel Modulation In connector.

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Calibration Procedures 4

6 Enter and begin the following setup.

Setup

[a]

7

[a] Constants are stored after completing this setup.

Self-calibration. The output is disabled.

7 There are no specific operational verification tests for setups 6 and 7 since the

constants generated affect almost all behavior of the instrument. Continue
with the next adjustment procedure in this chapter.

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4 Calibration Procedures

Output Impedance Adjustment

The function generator stores calibration constants for the output impedance. The
output impedance constants are generated with and without the distortion filter
and using all five attenuator paths.

1 Set the DMM to measure offset-compensated, four-wire Ohms. Set the DMM

to use 100 NPLC integration. Make the connections as shown below.

2 Use the DMM to make a resistance measurement at the front panel Output

connector for each setup in the following table. The expected measured value

is approximately 50 Ω.

Setup

10

[a]

8

[a]

9

[a]

-30dB range

-20dB range

-10dB range

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Calibration Procedures 4

Setup

[a]

11

[a]

12

[a] Constants are stored after completing this setup.

0dB range

+10dB range

3 Using the numeric keypad or knob, adjust the displayed impedance at each

setup to match the measured impedance. Select ENTER VALUE.

4 There are no specific operational verification tests for Output Impedance.

Continue with the next adjustment procedure in this chapter.

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4 Calibration Procedures

AC Amplitude (high-impedance) Adjustment

The function generator stores a calibration constant for each high-impedance
attenuator path. The gain coefficient of each path is calculated using two
measurements; one with the waveform DAC at + output and one with waveform
DAC at – output. The setups, therefore, must be performed in pairs.

1 Connect the DMM as shown below.

2 Use the DMM to measure the dc voltage at the front-panel Output connector

for each setup in the following table.

Setup

13 +0.015 V Output of -30dB range

[a]

14

15 +0.05 V Output of -20dB range

[a]

16

17 +0.15 V Output of -10dB range

[a]

18

19 +0.50 V Output of 0dB range

Nominal Signal

DC level

-0.015 V Output of -30dB range

-0.05 V Output of -20dB range

-0.15 V Output of -10dB range

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Calibration Procedures 4

Setup

[a]

20

21 +0.15 V Output of -10dB range (Amplifier In)

[a]

22

23 +0.50 V Output of 0dB range (Amplifier In)

[a]

24

25 +1.5 V Output of +10dB range (Amplifier In)

[a]

26

27 +5 V Output of +20dB range (Amplifier In)

[a]

28

[a] Constants are stored after completing this setup.

Nominal Signal

DC level

-0.50 V Output of 0dB range

-0.15 V Output of -10dB range (Amplifier In)

-0.50 V Output of 0dB range (Amplifier In)

-1.5 V Output of +10dB range (Amplifier In)

-5 V Output of +20dB range (Amplifier In)

3 Using the numeric keypad or knob, adjust the displayed voltage at each setup

to match the measured voltage. Select ENTER VALUE. (Entered values are
rounded to the nearest 100 μV).

4 After performing setup 28:

a If your calibration procedures require you to verify the adjustment just

made, exit the calibration menu and perform “AC Amplitude

(high-impedance) Verification” on page 69.

b If you are making all the adjustments and then verifying the instrument’s

performance, continue with the next procedure in this chapter.

Keysight 33210A Service Guide 93

4 Calibration Procedures

Low Frequency Flatness Adjustment

The Low Frequency Flatness adjustment calculates the flatness response of
3 attenuator paths with the Elliptical filter and 2 attenuator paths with the Linear
Phase filter.

1 Set the DMM to measure Vrms. Make the connections shown on page 92.

2 Use the DMM to measure the output voltage for each of the setups in the table

below.

Setup

[a]

29

[a]

30

[a]

31

[a]

32

[a]

33

[a]

34

[a]

35

[a]

36

[a]

37

[a]

38

[a] Constants are stored after completing this setup.

Nominal Signal

Frequency Amplitude

1 kHz 0.56 Vrms Flatness for 0dB, Elliptical Filter

100 kHz 0.56 Vrms Flatness for 0dB, Elliptical Filter

1 kHz 0.56 Vrms Flatness for 0dB, Linear Phase Filter

100 kHz 0.56 Vrms Flatness for 0dB, Linear Phase Filter

1 kHz 1.7 Vrms Flatness for +10dB, Elliptical Filter

100 kHz 1.7 Vrms Flatness for +10dB, Elliptical Filter

1 kHz 5.6 Vrms Flatness for +20dB, Elliptical Filter

100 kHz 5.6 Vrms Flatness for +20dB, Elliptical Filter

1 kHz 5.6 Vrms Flatness for +20dB, Linear Phase Filter

100 kHz 5.6 Vrms Flatness for +20dB, Linear Phase Filter

3 Using the numeric keypad or knob, adjust the displayed voltage at each setup

to match the measured voltage. Select ENTER VALUE.

4 After performing setup 38:

a If your calibration procedures require you to verify the adjustment just

made, exit the calibration menu and perform “Low Frequency Flatness

Verification” on page 71.

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Calibration Procedures 4

b If you are making all the adjustments and then verifying the instrument’s

performance, continue with the next procedure in this chapter.

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4 Calibration Procedures

NOTE

0 dB Range Flatness Adjustments

1 Connect the power meter as shown on page 98.

2 Use the power meter to measure the output amplitude for each of the setups

in the table below.

Setup 39 establishes the power meter reference for all the remaining setups in
this table. You must always perform setup 39 before any of the following setups.

Setup

Nominal Signal

Frequency Amplitude

[a]

39

40

41

42

43

44

45

46

47

48

49

50

51

100 kHz 0.28 Vrms 2 dBm Power Meter Reference for 0dB Range

[a]

200 kHz 0.28 Vrms 2 dBm Flatness for 0 dB, Elliptical Filter

[a]

500 kHz 0.28 Vrms 2 dBm Flatness for 0 dB, Elliptical Filter

[a]

1.5 MHz 0.28 Vrms 2 dBm Flatness for 0 dB, Elliptical Filter

[a]

[a]

[a]

[a]

[a]

[a]

[a]

[a]

[a]

3 MHz 0.28 Vrms 2 dBm Flatness for 0 dB, Elliptical Filter

4 MHz 0.28 Vrms 2 dBm Flatness for 0 dB, Elliptical Filter

6 MHz 0.28 Vrms 2 dBm Flatness for 0 dB, Elliptical Filter

8 MHz 0.28 Vrms 2 dBm Flatness for 0 dB, Elliptical Filter

9.9 MHz 0.28 Vrms 2 dBm Flatness for 0 dB, Elliptical Filter

200 kHz 0.28 Vrms 2 dBm Flatness for 0 dB, Linear Phase Filter

500 kHz 0.28 Vrms 2 dBm Flatness for 0 dB, Linear Phase Filter

1.5 MHz 0.28 Vrms 2 dBm Flatness for 0 dB, Linear Phase Filter

3.0 MHz 0.28 Vrms 2 dBm Flatness for 0 dB, Linear Phase Filter

52 Setup not used for this instrument

53 Setup not used for this instrument

[a] Constants are stored after completing this setup.

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Calibration Procedures 4

NOTE

NOTE

Setups 52 and 53 (previous page) are not used in this instrument.
From the front panel, press the Enter softkey to advance the setup from 52 to 53.
No number entry is required.

3 Using the numeric keypad, adjust the displayed amplitude at each setup to

match the measured amplitude (in dBm). Then select ENTER VALUE.

In order to get dBm you must use the numeric keypad (not the knob) to enter the
number, and then select “dBm”.

4 After performing setup 51:

a If your calibration procedures require you to verify the adjustment just

made, exit the calibration menu and perform “0 dB Range Flatness

Verification” on page 72.

b If you are making all the adjustments and then verifying the instrument’s

performance, continue with the next procedure in this chapter.

Keysight 33210A Service Guide 97

4 Calibration Procedures

NOTE

NOTE

+10 dB Range Flatness Adjustments

The Linear Phase path is not adjusted. It is approximated using the other path’s
values.

1 Connect the power meter as shown below.

2 Use a power meter to measure the output amplitude for each of the setups in

the table on the next page.

Setup 54 establishes the power meter reference for all the remaining setups in
this table. You must always perform setup 54 before any of the following setups.

Setup

[a]

54

[a]

55

Frequency Amplitude

100 kHz 0.9 Vrms 12 dBm Flatness for 10 dB, Elliptical Filter

200 kHz 0.9 Vrms 12 dBm Flatness for 10 dB, Elliptical Filter

Nominal Signal

98 Keysight 33210A Service Guide

Calibration Procedures 4

NOTE

Setup

56

57

58

60

61

62

[a] Constants are stored after completing this setup.

Frequency Amplitude

[a]

[a]

[a]

59 4.0 MHz 0.9 Vrms 12 dBm Flatness for 10 dB, Elliptical Filter

[a]

[a]

[a]

Nominal Signal

500 kHz 0.9 Vrms 12 dBm Flatness for 10 dB, Elliptical Filter

1.5 MHz 0.9 Vrms 12 dBm Flatness for 10 dB, Elliptical Filter

3.0 MHz 0.9 Vrms 12 dBm Flatness for 10 dB, Elliptical Filter

6.0 MHz 0.9 Vrms 12 dBm Flatness for 10 dB, Elliptical Filter

8.0 MHz 0.9 Vrms 12 dBm Flatness for 10 dB, Elliptical Filter

9.9 MHz 0.9 Vrms 12 dBm Flatness for 10 dB, Elliptical Filter

3 Using the numeric keypad, adjust the displayed amplitude at each setup to

match the measured amplitude (in dBm). Then select ENTER VALUE.

In order to get dBm you must use the numeric keypad (not the knob) to enter the
number, and then select “dBm”.

4 After performing setup 62:

a If your calibration procedures require you to verify the adjustment just

made, exit the calibration menu and perform “+10 dB Range Flatness

Verification” on page 74.

b If you are making all the adjustments and then verifying the instrument’s

performance, continue with the next procedure in this chapter.

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4 Calibration Procedures

CAUTION

NOTE

+20 dB Range Flatness Adjustment

Most power meters will require an attenuator (–20 dB) or special power head
to measure the +20 dB output.

Be sure to correct the measurements for the specifications of the attenuator you
use. For example, if the nominal attenuator value
is –20 dB at the specified frequency, you must add 20 dB to the power meter
reading before entering the value.

1 Make the connections as shown below:

2 Use the power meter to measure the output amplitude for each of the setups

in the table on the next page.

Setup 63 establishes the power meter reference for all the remaining setups in
this table. You must always perform setup 63 before any of the following setups.

100 Keysight 33210A Service Guide