Agilent Technologies Sprinkler 54621A Users Manual

54621A to the manual c76059c9-fe13-46a9-b751-67df079358da

2015-02-02

: Agilent-Technologies Agilent-Technologies-Agilent-Technologies-Sprinkler-54621A-Users-Manual-413400 agilent-technologies-agilent-technologies-sprinkler-54621a-users-manual-413400 agilent-technologies pdf

Open the PDF directly: View PDF .
Page Count: 111 [warning: Documents this large are best viewed by clicking the View PDF Link!]

Title page
- The Oscilloscope at a Glance
- In This Book
Contents
1 General Information
2 Preparing the Oscilloscope for Use
3 Testing Performance
4 Calibrating and Adjusting
5 Troubleshooting
- Solving General Problems with the Oscilloscopes
- Troubleshooting the Oscilloscope
6 Replacing Assemblies
7 Replaceable Parts
- To order a replacement part
Declaration of Conformity
Notices

Service Guide

Publication Number 54622-97037

December 2002

For Safety Information, Warranties, and Regulatory information, see the pages

at the end of this book.

Agilent 54621A/22A/24A

Oscilloscope and

Agilent 54621D/22D

Mixed-Signal Oscilloscope

service.book Page i Wednesday, December 18, 2002 8:35 AM

The Oscilloscope At a Glance

Choose from a variety of oscilloscopes for capturing

long, non-repeating signals

with 200 MSa/s sample rate and 2 MBytes of

MegaZoom deep memory per channel.

•Agilent 54621A - 2-channel, 60-MHz bandwidth

•Agilent 54621D - 2-channel +16 logic channels, 60-

MHz bandwidth

•Agilent 54622A - 2-channel, 100-MHz bandwidth

•Agilent 54622D - 2-channel +16 logic channels,

100-MHz bandwidth

•Agilent 54624A - 4-channel, 100-MHz bandwidth

Display shows current input signals

• All analog and digital (54621D/22D) channels

displayed in main and delayed mode

• Indicators for channel, time base, digital (54621D/

22D) channel activity, trigger and acquisition

status

• Softkey labels

• Measurement results

Digital channel controls select, position, and label

inputs (54621D/22D)

• Turn channels on or off individually or in groups

of 8

• Rearrange order of channels to group related

signals

• Create and display labels to identify channels

Run control keys begin and end data acquisition

• Run/Stop starts and stops continuous

acquisitions

• Single performs one acquisition

• Infinite persistence accumulates and displays the

results of multiple acquisitions

Horizontal Controls select sweep speed and delay

parameters

• Sweep speeds from 5 ns/div to 50 ns/div

• Delay control moves waveform display to point of

interest

• Delayed mode and delay allow zooming in to show

a portion of waveform in detail (split screen)

Trigger keys define what data the oscilloscope will

trigger on

• Source key allows conventional oscilloscope

triggering

• Modes include Edge, Pulse Width, Pattern, CAN,

Duration, I2C, LIN, Sequence, SPI, TV, and USB

triggering

General controls measure, save and restore results,

and configure the oscilloscope

• Waveform math including FFT, subtract, multiply,

integrate, and differentiate

• Use Quick Meas to make automatic

measurements Integrated counter included with

Quick Meas.

• Use cursors to make manual measurements

• Save or recall measurement configurations or

previous results

• Autoscale performs simple one-button setup of

the oscilloscope

Softkeys extend the functionality of command keys

Select measurement types, operating modes, trigger

specifications, label data, and more

Digital channel inputs through a flexible probing

system (54621D/22D)

• Sixteen channels through a dual 8-channel cable

with micro-clips

• Set logic levels as TTL, CMOS, ECL, or to a user-

definable voltage

Utilities

• Dedicated parallel printer port, controller

operation, floppy disk storage

Built in Quick Help system

• Press and hold any key front-panel key or softkey

to get help in 11 languages.

service.book Page ii Wednesday, December 18, 2002 8:35 AM

iii

In This Book

This book provides the service information for the Agilent 54621A/22A/24A

Oscilloscope and the Agilent 54621D/22D Mixed-Signal Oscilloscope.

This manual is divided into these chapters:

Chapter 1 provides general information and specifications.

Chapter 2 shows you how to prepare the oscilloscope for use.

Chapter 3 gives performance tests.

Chapter 4 covers calibration and adjustment procedures.

Chapter 5 provides troubleshooting information.

Chapter 6 gives the procedures and techniques for replacing assemblies and

other parts.

Chapter 7 includes a list of replaceable parts, part ordering information, and

shipping information.

At the back of the book you will find Safety information, Warranties, and

Regulatory information.

service.book Page iii Wednesday, December 18, 2002 8:35 AM

Contents

Contents-1

1 General Information

To inspect package contents 1-3

To inspect options and accessories 1-6

Performance Characteristics 1-9

2 Preparing the Oscilloscope for Use

Setting up the Oscilloscope 2-3

To adjust the handle 2-4

To power-on the oscilloscope 2-5

To adjust the display intensity 2-6

To connect the oscilloscope probes 2-7

To compensate your probe 2-7

To use the digital probes (mixed-signal oscilloscope only) 2-8

To connect a printer 2-12

To connect an RS-232 cable 2-12

To verify basic oscilloscope operation 2-13

Getting started using the oscilloscope interface 2-14

Using Quick Help 2-16

Selecting a language for Quick Help when the oscilloscope starts up 2-16

Selecting a language for Quick Help after you have been operating the

oscilloscope 2-17

Loading a language from floppy disk 2-18

Cleaning the oscilloscope 2-19

3 Testing Performance

List of Test Equipment 3-3

To construct the test connector 3-4

To test the 54621D/22D Oscilloscope digital channels 3-5

To verify threshold accuracy 3-6

To verify voltage measurement accuracy 3-10

To verify bandwidth 3-13

To verify horizontal Dt and 1/Dt accuracy 3-15

To verify trigger sensitivity 3-17

Agilent 54622A/22D/24A Performance Test Record 3-20

Agilent 54621A/21D Performance Test Record 3-21

service.book Page 1 Wednesday, December 18, 2002 8:35 AM

Contents

Contents-2

4 Calibrating and Adjusting

To adjust the power supply 4-4

To perform User Cal 4-7

To adjust the oscilloscope display 4-8

5 Troubleshooting

Solving General Problems with the Oscilloscopes 5-3

If there is no trace display 5-3

If the trace display is unusual or unexpected 5-4

If you cannot see a channel 5-5

Troubleshooting the Oscilloscope 5-6

To construct your own dummy load 5-7

To check out the oscilloscope 5-8

To check the Low Voltage Power Supply 5-11

To run the internal self-tests 5-13

6 Replacing Assemblies

To remove the cabinet 6-4

To remove the fan 6-5

To remove the floppy drive 6-6

To remove the front panel 6-7

To remove the display 6-8

To remove the system board 6-10

To remove the power supply 6-12

To remove the keyboard assembly 6-15

To remove the handle 6-16

7 Replaceable Parts

To order a replacement part 7-3

service.book Page 2 Wednesday, December 18, 2002 8:35 AM

General Information

service.book Page 1 Wednesday, December 18, 2002 8:35 AM

1-2

General Information

This chapter lists general information for the Agilent 54620-series

Oscilloscopes. It also includes performance characteristics and

specifications for the oscilloscopes.

service.book Page 2 Wednesday, December 18, 2002 8:35 AM

1-3

General Information

To inspect package contents

❏Inspect the shipping container for damage.

If your shipping container appears to be damaged, keep the shipping container

or cushioning material until you have inspected the contents of the shipment

for completeness and have checked the oscilloscope mechanically and

electrically.

❏Verify that you received the following items and any optional accessories in

the oscilloscope packaging (see figure following).

• 54620-Series Oscilloscope (54621A, 21D, 22A, 22D, or 24A)

• 10074C 10:1 150 MHz passive probes with ID:

(2) for 54621A, 21D, 22A, or 22D oscilloscopes

(4) for 54624A oscilloscope

• 54620-68701 digital probe kit (for 54621D or 22D)

• Accessory pouch and front-panel cover (standard for 54622A, 22D, and 24A)

(optional on 54621A and 21D; order N2726A)

• Power cord (see table 1-3)

• IntuiLink for 54600-series Oscilloscopes software and RS-232 cable (for

54622A, 22D, or 24A).

IntuiLink is a Windows application that makes it very easy for you to

download images, waveform data, or oscilloscope setups from the

oscilloscope to your pc using either Microsoft Word or Microsoft Excel. After

installation of IntuiLink, a tool bar in these Microsoft applications will make

connection and data transfer from the oscilloscope very simple.

IntuiLink software is available free on the web at:

www.agilent.com/find/5462xsw

RS-232 cable may be ordered separately, part number 34398A

If anything is missing, contact your nearest Agilent Sales Office. If the shipment

was damaged, contact the carrier, then contact the nearest Agilent Sales Office.

service.book Page 3 Wednesday, December 18, 2002 8:35 AM

1-4

General Information

• Agilent IntuiLink Data Capture (for 54622A, 22D, or 24A)

IntuiLink Data Capture is a standalone program for downloading waveform

data from the oscilloscopes to your PC via GPIB or RS-232 interface. It

provides the capability to transfer deep memory data out of the oscilloscope,

allowing up to 4MB (scope channels) and 8MB (logic channels). The

IntuiLink for 54600-Series limits the size of acquisition data available to a

maximum of 2,000 points regardless of actual number of acquisition points

on the screen. With the IntuiLink Data Capture, the amount of points

transferred will be the actual number of acquisition points currently

displayed or you may select the number of points to download. It provides

the following functionality:

• Download waveform data and display the data as a simple chart

• Save the data as binary or text files

• Copy the chart and a selected portion of the data to the clipboard. The

maximum data saved to the clipboard is 50,000 point

• Load saved waveform data back into the application

IntuiLink Data Capture software is available free on the web at:

www.agilent.com/find/5462xsw

RS-232 cable may be ordered separately, part number 34398A

❏Inspect the oscilloscope

• If there is mechanical damage or a defect, or if the oscilloscope does not

operate properly or does not pass the performance tests listed in the Service

Guide, notify your Agilent Sales Office.

• If the shipping container is damaged, or the cushioning materials show signs

of stress, notify the carrier and your Agilent Sales Office. Keep the shipping

materials for the carrier’s inspection. The Agilent Sales Office will arrange

for repair or replacement at Agilent’s option, without waiting for claim

settlement.

service.book Page 4 Wednesday, December 18, 2002 8:35 AM

1-5

General Information

Figure 1-1

Package contents for 54620-Series Oscilloscopes

10074C Probes

Power cord

Accessories pouch and

front-panel cover**

54620-61801 16-channel cable***

5959-9334 2” Probe

ground lead (qty 5)

5090-4833 Grabber

(qty 20)

IntuiLink for 54600-series

software, Data Capture

software and serial cable**

54620-Series Oscilloscope 54620-68701 digital probe kit*

* 54621D /22D only

** 54622A/22D/24A only

** The following additional replacement parts (not included) are available for the digital cable:

5959-9333 replacement probe leads (qty 5)

5959-9335 replacement pod grounds (qty 5)

01650-94309 package of probe labels

service.book Page 5 Wednesday, December 18, 2002 8:35 AM

1-6

General Information

To inspect options and accessories

❏Verify that you received the options and accessories you ordered and that none

were damaged.

If anything is missing, contact your nearest Agilent Sales Office. If the shipment

was damaged, or the cushioning materials show signs of stress, notify the carrier

and your Agilent Sales Office.

Some of the options and accessories available for the 54620-Series Oscilloscopes

are listed in tables 1-1 am 1-2. Contact your Agilent Sales Office for a complete

list of options and accessories.

Table 1-1 Options available

Option Description

003 Shielding Option for use in severe environments or with sensitive devices under

test–shields both ways (in and out):

RS-03 magnetic interface shielding added to CRT, and

RE-02 display shield added to CRT to reduce radiated interference.

1CM Rackmount kit (same as Agilent 1186A)

A6J ANSI Z540 compliant calibration service

See table 1-3 for power cord options

service.book Page 6 Wednesday, December 18, 2002 8:35 AM

1-7

General Information

Table 1-2 Accessories available

Model Description

01650-61607 16:16 logic cable and terminator (for use with 54621D/22D)

54620-68701 16:2 x 8 logic input probe assembly (shipped standard with 54621D/22D)

1146A 100 kHz current probe, ac/dc

1183A Testmobile scope cart

1185A Carrying case

1186A Rackmount kit

10070C 1:1 passive probe with ID

10072A Fine-pitch probe kit

10073C 10:1 500 MHz probe with ID

10075A 0.5 mm IC clip kit

10076A 100:1, 4 kV 250 MHz probe with ID

10100C 50Ω termination

10833A GPIB cable, 1 m long

34398A RS-232 cable (standard with 100 MHz models)

E2613B 0.5 mm Wedge probe adapter, 3-signal, qty 2

E2614A 0.5 mm Wedge probe adapter, 8-signal, qty 1

E2615B 0.65 mm Wedge probe adapter, 3-signal, qty 2

E2616A 0.65 mm Wedge probe adapter, 8-signal, qty 1

E2643A 0.5 mm Wedge probe adapter, 16-signal, qty 1

E2644A 0.65 mm Wedge probe adapter, 16-signal, qty 1

N2726A Accessory pouch and front-panel cover (standard with 100 MHz models)

N2727A Thermal printer and pouch

N2728A 10 rolls of thermal printer paper

N2757A GPIB Interface Module

N2758A CAN Trigger Module

N2771A 1000:1, 15 kV, 50 MHz high voltage probe

N2772A 20 MHz differential probe

N2773A Differential probe power supply

N2774A 50 MHz current probe, ac/dc

N2775A Power supply for N2774A

service.book Page 7 Wednesday, December 18, 2002 8:35 AM

1-8

General Information

Table 1-3. Power Cords

Plug Type Cable Part Number Plug Type Cable Part Number

Opt 900 (U.K.) 8120-1703 Opt 918 (Japan) 8120-4754

Opt 901 (Australia) 8120-0696 Opt 919 (Israel) 8120-6799

Opt 902 (Europe) 8120-1692 Opt 920 (Argentina) 8120-6871

Opt 903 (U.S.A.) 8120-1521 Opt 921 (Chile) 8120-6979

Opt 906 (Switzerland) 8120-2296 Opt 922 (China) 8120-8377

Opt 912 (Denmark) 8120-2957 Opt 927 (Thailand) 8120-8871

Opt 917 (Africa) 8120-4600

service.book Page 8 Wednesday, December 18, 2002 8:35 AM

1-9

General Information

Acquisition: Analog Channels

Performance Characteristics

* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and

±10 °C from firmware calibration temperature.

Acquisition: Analog Channels

Max Sample rate 200 MSa/s

Max Memory Depth 4 MB interleaved, 2 MB each channel

Vertical Resolution 8 bits

Peak Detection 5 ns

Averages selectable from 2, 4, 8, 16, 32, 64 ...to 16383

High Resolution Mode 12 bits of resolution when ≥500 us/div, average mode with average = 1

Filter: Sinx/x interpolation (single shot BW = sample rate/4 or bandwidth of scope, whichever

is less) with vectors on.

Acquisition: Digital Channels (on 54621D and 54622D only)

Max Sample Rate 400 MSa/s

Max Memory Depth 8 MB

Vertical Resolution 1 bit

Glitch Detection (min pulse width) 5 ns

service.book Page 9 Wednesday, December 18, 2002 8:35 AM

1-10

General Information

Vertical System: Analog Channels

Analog channels 54621A/21D, 54622A/22D: Ch1 and 2 simultaneous acquisition

54624A: Ch 1, 2, 3, and 4 simultaneous acquisition

Bandwidth (-3dB)* 54621A/22D: dc to 60 MHz

54622A/22D/24A: dc to 100 MHz

ac coupled 54621A/21D: 3.5 Hz to 60 MHz

54622A/22D/24A: 3.5 Hz to 100 MHz

Calculated rise time

(= 0.35/bandwidth) 54621A/22D: ~5.8 ns

54622A/22D/24A: ~3.5 ns

Single Shot Bandwidth 50 MHz

Range11 mV/div to 5 V/div

Maximum Input CAT I 300 Vrms, 400 Vpk

CAT II 100 Vrms, 400 Vpk

with 10074C 10:1 probe: CAT I 500 Vpk, CAT II 400 Vpk

Offset Range ±5 V on ranges <10 mV/div

±25 V on ranges 10 mV/div to 199 mV/div

±100 V on ranges ≥200 mV/div

Dynamic Range Lesser of ±8 div or ±32 V

Input Resistance 1 MΩ ±1%

Input Capacitance ~ 14 pF

Coupling ac, dc, ground

BW Limit ~ 20 MHz selectable

Channel-to-Channel Isolation

(with channels at same V/div) dc to 20 MHz > 40 dB

20 MHz to max bandwidth > 30 dB

Probes 10:1 10074C shipped standard for each analog channel

Probe ID (Agilent/HP &

Tek Compatible) Auto probe sense

11 mV/div is a magnification of 2 mV/div setting. For vertical accuracy calculations, use full scale of 16 mV for 1 mV/div sensitivity setting.

* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and

±10 °C from firmware calibration temperature.

service.book Page 10 Wednesday, December 18, 2002 8:35 AM

1-11

General Information

Vertical System: Analog Channels (continued)

ESD Tolerance ±2 kV

Noise Peak-to-Peak 2% full scale or 1 mV, whichever is greater

Common Mode Rejection Ratio 20 dB @ 50 MHz

DC Vertical Gain Accuracy*1±2.0% full scale

DC Vertical Offset Accuracy < 200 mV/div: ±0.1 div ±1.0 mV ±0.5% offset

≥200 mV/div: ±0.1 div ±1.0 mV ±1.5% offset value

Single Cursor Accuracy1±{DC Vertical Gain Accuracy + DC Vertical Offset

Accuracy + 0.2% full scale (~1/2 LSB) }

Example: For 50 mV signal, scope set to 10 mV/div (80 mV full scale), 5 mV offset,

accuracy = ±{2.0%(80mV) + 0.1 (10 mV) + 1.0 mV + 0.5% (5 mV) + 0.2%(80 mV)} = ± 3.78 mV

Dual Cursor Accuracy*1±{DC Vertical Gain Accuracy + 0.4% full scale (~1 LSB)}

Example: For 50 mV signal, scope set to 10 mV/div (80 mV full scale), 5 mV offset,

accuracy = ±{2.0%(80 mV) + 0.4%(80 mV)} = ±1.92 mV

11 mV/div is a magnification of 2 mV/div setting. For vertical accuracy calculations, use full scale of 16 mV for 1 mV/div sensitivity setting.

Vertical System: Digital Channels (54621D and 54622D only)

Number of Channels 16 Digital – labeled D15 – D0

Threshold Groupings Pod 1: D7 - D0

Pod 2: D15 - D8

Threshold Selections TTL, CMOS, ECL, user-definable (selectable by pod)

User-Defined Threshold Range ±8.0 V in 10 mV increments

Maximum Input

Voltage ±40 V peak CAT I

Threshold Accuracy* ±(100 mV + 3% of threshold setting)

Input Dynamic Range ±10 V about threshold

Minimum Input Voltage Swing 500 mV peak-to-peak

Input Capacitance ~ 8 pF

Input Resistance 100 kΩ ±2% at probe tip

Channel-to-Channel Skew 2 ns typical, 3 ns maximum

* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and

±10 °C from firmware calibration temperature.

service.book Page 11 Wednesday, December 18, 2002 8:35 AM

1-12

General Information

Horizontal

Range 5 ns/div to 50 s/div

Resolution 25 ps

Vernier 1-2-5 increments when off, 25 minor increments between major settings when on

Reference Positions Left, Center, Right

Delay Range

Pre-trigger (negative delay)

Post-trigger (positive delay) Greater of 1 screen width or 10 ms

500 seconds

Analog Delta-t Accuracy

Same Channel*

Channel-to-Channel

±0.01% reading ±0.1% screen width ±40 ps

Example: for signal with pulse width of 10 us, scope set to 5 us/div (50 us screen width),

delta-t accuracy = ±{.01%(10 us) + 0.1% (50 us) + 40 ps} = 51.04 ns

±0.01% reading ±0.1% screen width ±80 ps

Digital Delta-t Accuracy

Same Channel

Channel-to-Channel

(non-Vernier settings)

±0.01% reading ±0.1% screen width ±(1 digital sample period, 2.5 or 5 ns based on

sample rate of 200/400 MSa/s)

Example: for signal with pulse width of 10 us, scope set to 5 us/div (50 us screen width),

and single pod active (400 MSa/s), delta-t accuracy = ±{.01%(10 us) + 0.1% (50 us) + 2.5

ns} = 53.5 ns

±0.01% reading ±0.1% screen width ±(1 digital sample period, 2.5 or 5 ns)

±chan-to-chan skew (2 ns typical, 3 ns maximum)

Delay Jitter 10 ppm

RMS Jitter 0.025% screen width + 30 ps

Modes Main, Delayed, Roll, XY

XYZ blanking

Bandwidth

Phase error @ 1 MHz

1.4 V blanks trace (use External trigger)

Max bandwidth

1.8 degrees

* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and

±10 °C from firmware calibration temperature.

service.book Page 12 Wednesday, December 18, 2002 8:35 AM

1-13

General Information

Trigger System

Sources: 54621A/22A: Ch 1, 2, line, ext

54621D/22D: Ch 1, 2, line, ext, D15 - D0

54624A: Ch 1, 2, 3, 4, line, ext

Modes Auto, Auto level, Triggered (normal), Single

Holdoff Time ~60 ns to 10 seconds

Selections Edge, Pattern, Pulse Width, CAN, Duration, I2C, Sequence, SPI, TV, USB

Edge Trigger on a rising or falling edge of any source.

Pattern Trigger on a pattern of high, low, and don’t care levels and a rising or falling edge

established across any of the sources. The analog channel’s high or low level is defined

by that channel’s trigger level.

Pulse Width Trigger when a positive- or negative-going pulse is less than, greater than, or within a

specified range on any of the source channels.

Minimum pulse width setting: 5 ns

Maximum pulse width setting: 10 s

CAN Trigger on CAN (Controller Area Network) version 2.0A and 2.0B signals. It can trigger

on the Start of Frame bit of a data frame, a remote transfer request frame, or an overload

frame.

Duration Trigger on a multi-channel pattern whose time duration is less than a value, greater

than a value, greater than a time value with a timeout value, or inside or outside of a set

of time values.

Minimum duration setting: 5 ns

Maximum duration setting: 10 s

I2C Trigger on I2C (Inter-IC bus) serial protocol at a start/stop condition, a restart, a missing

acknowledge, or user defined frame with address and/or data values. Also trigger on

Missing Acknowledge, Restart, EEPROM read, and 10-bit write.

LIN Trigger on LIN (Local Interconnect Network) sync break at beginning of message frame.

Sequence Find event A, trigger on event B, with option to reset on event C or time delay.

SPI Trigger on SPI (Serial Peripheral Interface) a data pattern during a specific framing

period. Support positive and negative Chip Select framing ad well as clock Idle framing

and user-specified number of bits per frame.

USB Trigger on USB (Universal Serial Bus) Start of Packet, End of Packet, Reset Complete,

Enter Suspend, or Exit Suspend on the differential USB data lines. USB low speed and

high speed are supported.

TV Trigger on any analog channel for NTSC, PAL, PAL-M, or SECAM broadcast standards

on either positive or negative composite video signals. Modes supported include Field

1, Field 2, or both, all lines, or any line within a field. Also supports triggering on non-

interlaced fields. TV trigger sensitivity: 0.5 division of synch signal.

Autoscale Finds and displays all active analog and digital (for 54621D/54622D) channels, sets edge

trigger mode on highest numbered channel, sets vertical sensitivity on analog channels

and thresholds on digital channels, time base to display ~1.8 periods. Requires minimum

voltage >10 mVpp, 0.5% duty cycle and minimum frequency >50 Hz.

* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and

±10 °C from firmware calibration temperature.

service.book Page 13 Wednesday, December 18, 2002 8:35 AM

1-14

General Information

Analog Channel Triggering

Range (Internal) ±6 div from center screen

Sensitivity* Greater of 0.35 div or 2.5 mV

Coupling AC (~3.5 Hz), DC, noise reject, HF reject and LF reject (~ 50 kHz)

Digital (D15 - D0) Channel Triggering (54621D and 5462 2D)

Threshold Range (user-defined) ±8.0 V in 10 mV increments

Threshold Accuracy* ±(100 mV + 3% of threshold setting)

Predefined Thresholds TTL = 1.4 V, CMOS = 2.5 V, ECL = -1.3 V

External (EXT) Triggering

Input Resistance 1 MΩ ±3%

Input Impedance ~ 14 pF

Maximum Input CAT I 300 Vrms, 400 Vpk

CAT II 100 Vrms, 400 Vpk

with 10074C 10:1 probe:CAT I 500 Vpk, CAT II 400 Vpk

Range ±10 V

Sensitivity dc to 25 MHz, < 75 mV

25 MHz to max bandwidth, < 150 mV

Coupling AC (~ 3.5 Hz), DC, noise reject, HF reject and LF reject (~ 50 kHz)

Probe ID (Agilent/HP & Tek

Compatible) Auto probe sense for 54621A/22A

* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and

±10 °C from firmware calibration temperature.

service.book Page 14 Wednesday, December 18, 2002 8:35 AM

1-15

General Information

Display System

Display 7-inch raster monochrome CRT

Throughput of Analog Channels 25 million gray scale vectors/sec per channel

Resolution 255 vertical by 1000 horizontal points (waveform area)

32 levels of gray scale

Controls Waveform intensity on front panel

Vectors on/off; infinite persistence on/off

8 x 10 grid with continuous intensity control

Built-in Help System Key-specific help in 11 languages displayed by pressing and holding key or softkey of

interest

Real Time Clock Time and date (user setable)

Measurement Features

Automatic Measurements Measurements are continuously updated

Cursors track current measurement

Voltage (analog channels only) Peak-to-Peak, Maximum, Minimum, Average, Amplitude, Top, Base, Overshoot,

Preshoot, RMS (DC)

Time Frequency, Period, + Width, - Width, and Duty Cycle on any channels.

Rise time, Fall time, X at Max (Time at max volts), X at Min (Time at min volts), Delay,

and Phase on analog channels only.

Counter Built-in 5-digit frequency counter on any channel. Counts up to 125 MHz

Threshold Definition Variable by percent and absolute value; 10%, 50%, 90% default for time measurements

Cursors Manually or automatically placed readout of Horizontal (X, ∆X, 1/∆X) and

Vertical (Y, ∆Y). Additionally digital or analog channels can be displayed as binary or

hex values

Waveform Math 1-2, 1*2, FFT, differentiate, integrate.

Source of FFT: differentiate, integrate, analog channels 1 or 2 (or 3 or 4 for 54624A), 1-

2, 1+2, 1*2

* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and

±10 °C from firmware calibration temperature.

service.book Page 15 Wednesday, December 18, 2002 8:35 AM

1-16

General Information

FFT

Points Fixed at 2048 points

Source of FFT Analog channels 1 or 2 (or 3 or 4 for 54624A), 1+2, 1-2, 1*2

Window Rectangular, Flattop, Hanning

Noise Floor -70 to -100 dB depending on averaging

Amplitude Display In dBV

Frequency Resolution: 0.097656/(time per div)

Maximum Frequency 102.4/(time per div)

Storage

Save/Recall (non-volatile) 3 setups and traces can be saved and recalled internally

Floppy Disk

Image formats

Data formats

Trace/setup formats

3.5” 1.44 MB double density

TIF, BMP

X and Y (time/voltage) values in CSV format

Recalled

I/O

RS-232 (serial) standard port 1 port; XON or DTR; 8 data bits; 1 stop bits; parity=none; 9600, 19200, 38400, 57600 baud

rates

Parallel standard port Printer support

Printer Compatibility HP DeskJet, HP LaserJet with HP PCL 3 or greater compatibility

Compatibility– black and white @150x150 dpi

gray scale @ 600x600 dpi

Epson–black and white @180x180 dpi

Seiko–DPU-414 black and white

Optional GPIB Interface Module Fully programmable with IEEE488.2 compliance

Typical GPIB throughput of 20 measurements or twenty 2000-point records per second.

* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and

±10 °C from firmware calibration temperature.

service.book Page 16 Wednesday, December 18, 2002 8:35 AM

1-17

General Information

General Characteristics

Physical:

Size

Weight 32.26 cm wide x 17.27 cm high x 31.75 cm deep (without handle)

6.35 kgs (14 lbs)

Calibrator Output Frequency ~1.2 kHz; Amplitude ~5 V

Trigger Out 0 to 5 V with 50 Ω source impedance; delay ~ 55 ns

Printer Power 7.2 to 9.2 V, 1 A

Kensington lock Connection on rear panel for security

Power Requirements

Line Voltage Range 100 - 240 VAC ±10%, CAT II, automatic selection

Line Frequency 47 to 440 Hz

Power Usage 100 W max

Environmental Characteristics

Ambient Temperature Operating -10 °C to +55 °C

Non-operating -51 °C to +71 °C

Humidity Operating 95% RH at 40 °C for 24 hr

Non-operating 90% RH at 65 °C for 24 hr

Altitude Operating to 4,570 m (15,000 ft)

Non-operating to 15,244 m (50,000 ft)

Vibration HP/Agilent class B1 and MIL-PRF-28800F Class 3 random

Shock HP/Agilent class B1 and MIL-PRF-28800F (operating 30 g, 1/2 sine, 11-ms duration, 3

shocks/axis along major axis. Total of 18 shocks)

Pollution degree2 Normally only dry non-conductive pollution occurs. Occasionally a temporary

conductivity caused by condensation must be expected.

Indoor use only This instrument is rated for indoor use only

* Denotes Warranted Specifications, all others are typical. Specifications are valid after a 30-minute warm-up period and

±10 °C from firmware calibration temperature.

service.book Page 17 Wednesday, December 18, 2002 8:35 AM

Preparing the Oscilloscope for Use

service.book Page 1 Wednesday, December 18, 2002 8:35 AM

2-2

Preparing the Oscilloscope for Use

To prepare your oscilloscope for use, you need to do the following tasks.

After y ou have completed them, you will be ready to use the oscil loscope.

In the following topics you will:

• adjust the handle

• power-on the oscilloscope

• adjust the display intensity

• connect the oscilloscope probes

• connect the digital probes (with 54621D and 54622D)

• connect a printer

• connect a RS-232 cable

• verify basic oscilloscope operation

• get started using the oscilloscope interface

• learn how to use Quick Help

This chapter also tells you how to:

• clean the oscilloscope

service.book Page 2 Wednesday, December 18, 2002 8:35 AM

2-3

Setting up the Oscilloscope

After you have done a few basic tasks, you will connect probes to the

oscilloscope. The number of probes, and the type of probes that you will

use depends on the oscilloscope model that you have.

• When using the Agilent 54621A and 54622A 2-channel Oscilloscopes, and

the Agilent 54624A 4-channel Oscilloscope, you will connect and use analog

probes to examine analog signals.

• When using the Agilent 54621D and 54622D Mixed-Signal Oscilloscopes, you

will connect and use both analog and digital probes to examine analog and

digital signals.

Analog channels

(2 or 4, depending

on the oscilloscope

model)

Analog channels (2)

Digital channels (16)

service.book Page 3 Wednesday, December 18, 2002 8:35 AM

2-4

Preparing the Oscilloscope for Use

To adjust the handle

1 Grasp the handle pivot points on each side of the instrument and pull

the pivot out until it stops.

2 Without releasing the pivots, swivel the handle to the desired position.

Then release the pivots. Continue pivoting the handle until it clicks into

a set position.

54622D

MIXED SIGNAL OS CILLOSCOPE

CHANNE L

INPUTS

5 ns1 s

150

Time/ Div

Sele ct

Agilent

service.book Page 4 Wednesday, December 18, 2002 8:35 AM

2-5

Preparing the Oscilloscope for Use

To power-on the oscilloscope

1 Connect the power cord to the rear of the oscilloscope, then to a suitable

ac voltage source.

The oscilloscope power supply automatically adjusts for input line voltages in the

range 100 to 240 VAC. Therefore, you do not need to adjust the input line voltage

setting. The line cord provided is matched to the country of origin. Ensure that

you have the correct line cord. See table 1-3

2 Press the power switch.

Some front panel key lights will come on and the oscilloscope will be operational

in about 5 seconds.

~5V

Trigger out

service.book Page 5 Wednesday, December 18, 2002 8:35 AM

2-6

Preparing the Oscilloscope for Use

To adjust the display intensity

The Intensity control is at the lower left corner of the front panel.

• To decrease display intensity, rotate the Intensity control counter-

clockwise.

• To increase display intensity, rotate the Intensity control clockwise.

Intensity control

The grid or graticule intensity on the display can be adjusted by pressing the

Display key, then turn the Entry knob (labeled on the front panel) to adjust

the Grid control.

Dim Bright

service.book Page 6 Wednesday, December 18, 2002 8:35 AM

2-7

Preparing the Oscilloscope for Use

To connect the oscilloscope probes

1 Connect the Agilent 10074C 1.5-meter, 10:1 oscilloscope probe to the

analog channel 1 or 2 BNC connector input on the oscilloscope, or

channel 1 through channel 4 on the 54624A.

Maximum input voltage for analog inputs:

CAT I 300 Vrms, 400 Vpk

CAT II 100 Vrms, 400 Vpk

with 10074C 10:1 probe: CAT I 500 Vpk, CAT II 400 Vpk

2 Connect the retractable hook tip on the probe tip to the circuit point of

interest. Be sure to connect the probe ground lead to a ground point on

the circuit.

The probe ground lead is connected to the oscilloscope chassis and the ground

wire in the power cord. If you need to connect the ground lead to a point in the

circuit that cannot be grounded to power ground, consider using a differential

probe.

To compensate your probe

You should compensate you probes to match their characteristics to the

oscilloscope. A poorly compenstated probe can introduce measurement errors.

To compensate a probe, follow these steps:

1 Connect the probe from channel 1 to the Probe Comp signal on the lower-

right corner of the front panel.

2Press

Autoscale.

3 Use a nonmetallic tool to adjust the trimmer capacitor on the probe for

the flattest pulse possible.

comp.cdr

Perfectly compensated

Over compensated

Under compensated

service.book Page 7 Wednesday, December 18, 2002 8:35 AM

2-8

Preparing the Oscilloscope for Use

To use the digital probes (mixed-signal oscilloscope only)

To use the digital probes (mixed-signal oscilloscope

only)

1 If you feel it’s necessary, turn off the power supply to the circuit under

test.

Turning off power to the circuit under test would only prevent damage that

might occur if you accidentally short two lines together while connecting

probes. You can leave the oscilloscope powered on because no voltage appears

at the probes.

2 Connect the digital probe cable to D15 - D0 connector on the front panel

of the mixed-signal oscilloscope. The digital probe cable is indexed so

you can connect it only one way. You do not need to power-off the

oscilloscope.

Use only the Agilent part number 54620-68701 digital probe kit supplied with

the mixed-signal oscilloscope.

Off

service.book Page 8 Wednesday, December 18, 2002 8:35 AM

2-9

Preparing the Oscilloscope for Use

To use the digital probes (mixed-signal oscilloscope only)

3 Connect a grabber to one of the probe leads. Be sure to connect the

ground lead. (Other probe leads are omitted from the figure for clarity.)

4 Connect the grabber to a node in the circuit you want to test.

Grabber

service.book Page 9 Wednesday, December 18, 2002 8:35 AM

2-10

Preparing the Oscilloscope for Use

To use the digital probes (mixed-signal oscilloscope only)

5 For high-speed signals, connect a ground lead to the probe lead, connect

a grabber to the ground lead, and attach the grabber to ground in the

circuit under test.

6 Connect the ground lead on each set of channels, using a probe grabber.

The ground lead improves signal fidelity to the instrument, ensuring

accurate measurements.

Signal Lead

Ground Lead

Grabber

Circuit

Ground

Channel

Pod Ground

service.book Page 10 Wednesday, December 18, 2002 8:35 AM

2-11

Preparing the Oscilloscope for Use

To use the digital probes (mixed-signal oscilloscope only)

7 Repeat steps 3 through 6 until you have connected all points of interest.

8 If you need to remove a probe lead from the cable, insert a paper clip

or other small pointed object into the side of the cable assembly, and

push to release the latch while pulling out the probe lead.

Replacement parts are available. See the “Replaceable Parts” chapter for details.

Signals

Ground

service.book Page 11 Wednesday, December 18, 2002 8:35 AM

2-12

Preparing the Oscilloscope for Use

To connect a printer

The oscilloscope connects to a parallel printer through the Parallel output

connector on the rear of the oscilloscope. You will need a parallel printer cable

to connect to the printer.

1 Attach the 25-pin small “D” connector to the Parallel output connector

on the rear of the oscilloscope. Tighten the thumbscrews on the cable

connector to secure the cable.

2 Attach the larger 36-pin “D” connector to the printer.

3 Set up the printer configuration on the oscilloscope.

a Press the Utility key, then press the Print Confg softkey.

b Press the Print to: softkey and set the interface to Parallel.

c Press the Format softkey and select your printer format from the list.

For more information on printer configuration, refer to the “Utilities” chapter

in the User’s Guide.

To connect an RS-232 cable

The oscilloscope can be connected to a controller or a PC through the RS-232

connector on the rear of the oscilloscope. An RS-232 cable is shipped with each

54622A/22D/24A oscilloscope and may be purchased for the 54621A/21D

oscilloscopes.

1 Attach the 9-pin “D” connector on the RS-232 cable to the RS-232

connector on the rear of the oscilloscope. Tighten the thumbscrews on

the cable connector to secure the cable

2 Attach the other end of the cable to your controller or pc.

3 Set up the RS-232 configuration on the oscilloscope.

a Press the Utility key, then press the I/O softkey.

b Press the Controller softkey and select RS-232.

c Press the Baud softkey and set the baud rate to match your controller or pc.

d Press the XON DTR softkey and set the handshake to match your controller

or pc.

For more information on RS-232 configuration, refer to the “Utilities” chapter

in the User’s Guide.

service.book Page 12 Wednesday, December 18, 2002 8:35 AM

2-13

Preparing the Oscilloscope for Use

To verify basic oscilloscope operation

1 Connect an oscilloscope probe to channel 1.

2 Attach the probe to the Probe Comp output on the lower-right side of

the front panel of the oscilloscope.

Use a probe retractable hook tip so you do not need to hold the probe.

3Press the Save/Recall key on the front panel, then press the Default Setup

softkey under the display.

The oscilloscope is now configured to its default settings.

4Press the Autoscale key on the front panel.

You should then see a square wave with peak-to-peak amplitude of about 5

divisions and a period of about 4 divisions as shown below. If you do not see

the waveform, ensure your power source is adequate, the oscilloscope is

properly powered-on, and the probe is connected securely to the front-panel

channel input BNC and to the Probe Comp calibration output.

Verifying Basic Oscilloscope Operation

service.book Page 13 Wednesday, December 18, 2002 8:35 AM

2-14

Getting started using the oscilloscope interface

When the oscilloscope is first turned on, it performs a self-test, then

momentarily shows a startup screen as shown below.

This menu is only accessible when the oscilloscope first starts up.

service.book Page 14 Wednesday, December 18, 2002 8:35 AM

2-15

Preparing the Oscilloscope for Use

To verify basic oscilloscope operation

•Press the Getting Started softkey to view the symbols used in the

oscilloscope softkey menus.

Use the Entry knob labeled to adjust the parameter.

Press the softkey to display a pop up with a list of choices. Repeatedly

press the softkey until your choice is selected.

Use the Entry knob labeled or press the softkey to adjust the

parameter.

✓Option is selected and operational.

Feature is on. Press the softkey again to turn the feature off.

Feature is off. Press the softkey again to turn the feature on.

Press the softkey to view the menu.

Press the softkey to return to the previous menu.

Links you to another menu.

service.book Page 15 Wednesday, December 18, 2002 8:35 AM

2-16

Using Quick Help

The oscilloscope has a Quick Help system that provides user help for

each front-panel key and softkey on the oscilloscope. To view Quick Help

information:

1Press

and hold down the key for which you would like to view help.

2 Release the key after reading the message. Releasing the key returns

the oscilloscope to the previous state.

Selecting a language for Quick Help when the

oscilloscope starts up

When the oscilloscope first powers up, you can press the Language softkey to

select a language for viewing Quick Help. Successive press the Language softkey

until the desired language in the list selected.

You can also select and load a language later from the Utility Language menu.

service.book Page 16 Wednesday, December 18, 2002 8:35 AM

2-17

Preparing the Oscilloscope for Use

Selecting a language for Quick Help after you have been operating the oscilloscope

Selecting a language for Quick Help after you have been

operating the oscilloscope

1Press the Utility key, then press the Language softkey to display the

Language menu.

2Press the

Language softkey until the desired language in the list selected.

If the language you want to load is grayed-out in the list, you will need to load

the language from floppy disk. The language file can be downloaded from

www.agilent.com/find/5462xsw or call an Agilent center and request a language

disk for your instrument

service.book Page 17 Wednesday, December 18, 2002 8:35 AM

2-18

Preparing the Oscilloscope for Use

Loading a language from floppy disk

Language files can be downloaded from www.agilent.com/find/5462xsw or call

an Agilent center and request a language disk for your instrument.

1 Insert the floppy disk with a language file into the floppy disk drive on

the oscilloscope.

2Press the

Utility key, then press the Language softkey to display the

Language menu.

3Press the

Load Languages softkey to load the updated language file into

the oscilloscope.

4Press the

Language softkey and select the language to be viewed.

For more information about loading and deleting languages, refer to the

“Utilities” chapter in the User’s Guide.

service.book Page 18 Wednesday, December 18, 2002 8:35 AM

2-19

Cleaning the oscilloscope

1 Disconnect power from the instrument.

CAUTION Avoid Damage to Sensitive Electronic Components!

Do not use too much liquid in cleaning the oscilloscope. Water can enter the

front-panel keyboard, control knobs, or floppy disk damaging sensitive

electronic components.

2 Clean the oscilloscope with a soft cloth dampened with a mild soap and

water solution.

3 Make sure that the instrument is completely dry before reconnecting to

a power source.

service.book Page 19 Wednesday, December 18, 2002 8:35 AM

Testing Performance

service.book Page 1 Wednesday, December 18, 2002 8:35 AM

3-2

Testing Performance

This chapter explains how to verify correct oscilloscope operation and

perform tests to ensure that the oscilloscope meets the performance

specifications.

To completely test and troubleshoot the mixed-signal oscilloscope, you

will create and use a test connector accessory, as described in this

chapter.

• The test connector makes it easy for you to connect the oscilloscope

probes to function generators and measurement equipment with

minimum electrical distortion.

• The connector is used in the digital channel threshold accuracy test.

Let the Equipment Warm Up Before Testing For accurate test results, let

the test equipment and the oscilloscope warm up 30 minutes before testing.

Verifying Test Results During the tests, record the readings in the

Performance Test Record at the end of this chapter for your oscilloscope. To

verify whether a test passes, verify that the reading is within the limits in the

Performance Test Record.

If a performance test fails

If a performance test fails, first perform the User Cal procedure given in Chapter 4.

If the User Cal procedure does not correct the problem, refer to Chapter 4, Calibrating

and Adjusting.

service.book Page 2 Wednesday, December 18, 2002 8:35 AM

3-3

Testing Performance

List of Test Equipment

Below is a list of test and equipment and accessories required to perform

the performance test verification procedures.

Equipment Critical Specifications Recommended Model/

Part Number

Test connector, 8-by-2 Not required if 01660-63801 Test Fixture is available

See “To construct the test connector”

later in this chapter

n/a

Test fixture For testing digital channel threshold accuracy Agilent 01660-63801

Digital Multimeter 0.1 mV resolution, 0.005% accuracy Agilent 34401A

Power Splitter Outputs differ by 0.15 dB Agilent 11667B

Power Supply DC offset voltage of -5.5 V to 35.5 V, 0.1 mV resolution Agilent 3245A

Oscilloscope Calibrator 25 MHz—100 MHz sine wave, 5 ppm Fluke 5820A

BNC banana cable Agilent 11001-60001

BNC cable (qty 3) Agilent 10503A

Probe cable Agilent 01650-61607

Shorting Cap BNC Agilent 1250-0774

Adapter BNC(f) to banana(m) Agilent 1251-2277

Feedthrough 50Ω, BNC (m) and (f) Agilent 11048C

Adapter BNC Tee (m) (f) (f) Agilent 1250-0781

Blocking capacitor Agilent 10240-60001

Adapter (qty 3) N(m) to BNC(f) Agilent 1250-0780

service.book Page 3 Wednesday, December 18, 2002 8:35 AM

3-4

Testing Performance

To construct the test connector

The Agilent 54621D/22D Mixed-Signal Oscilloscope has digital channels that

you will need to connect to test equipment during testing. To easily connect the

digital channels, you will construct a test connector only if the 01660-63801

Test Fixture is not available.

Table 3-1 Materials Required to Construct the Test Connectors

1Obtain a BNC connector and an 8-by-2 section of Berg strip.

2On one side of the Berg strip, solder a jumper wire to all of the pins.

3On the other side of the Berg strip, solder another jumper wire to all of

the pins.

4Solder the center of the BNC connector to a center pin on one of the

rows on the Berg strip.

5Solder the ground tab of the BNC connector to a center pin on the other

row on the Berg strip.

Figure 3-1

Constructing the 8-by-2 Connector

Construct Test Connector only if Test Fixture is not available

The test connector is not required if 01660-63801 Test Fixture is available.

Description Recommended Part Qty

BNC (f) Connector Agilent 1250-1032 1

Berg Strip, 8-by-2 1

Jumper wire

service.book Page 4 Wednesday, December 18, 2002 8:35 AM

3-5

Testing Performance

To test the 54621D/22D Oscilloscope digital channels

The acquisition system testing provides confidence that the acquisition system

is functioning correctly. It does not, however, check a particular specification.

1Disconnect all probes from the circuit under test and from any other

input source.

2Using probe leads and grabbers, connect digital channels D0, D1, D2,

and D3 to the calibration point on the 54621D/22D front panel.

3Press the Autoscale key.

If four square waves appear, the acquisition system is functioning correctly.

If the square waves do not appear, go to the “Troubleshooting” chapter. Then

return here to finish testing the digital channels.

4Disconnect the digital channels from the calibration point.

5Use steps 2 and 3 to test the following sets of digital channels. After you

test one set of digital channels, remove them before connecting the next

set.

• D4, D5, D6, D7

• D8, D9, D10, D11

• D12, D13, D14, D15

Only the 54621D/22D Mixed-Signal Oscilloscope has Digital Channels

You need to perform these instructions only if you will be testing the digital channels

on the Agilent 54621D/22D Mixed-Signal Oscilloscope.

service.book Page 5 Wednesday, December 18, 2002 8:35 AM

3-6

Testing Performance

To verify digital channel threshold accuracy

This test verifies the digital channel threshold accuracy specification of the

Agilent 54621D/22D Mixed-Signal Oscilloscope.

Threshold accuracy test limits= ±(100 mV + 3% of threshold setting)

When to Test You should perform this test every 24 months or after 4000

hours of operation, whichever comes first.

What to Test Use these instructions to test the threshold settings of digital

channels D7-D0. Then, use the same instructions to test digital channels

D15-D8.

Verifying Test Results After each threshold test, record the voltage reading

in the Performance Test Record at the end of this chapter. To verify whether a

test pas ses, veri fy tha t the vol tag e read ing is wi thin the lim its in t he Pe rf or man ce

Test Record.

Table 3-2 Equipment Required to Test Threshold Accuracy

Test Threshold Accuracy only on the 54621D/22D Mixed-Signal Oscilloscope

You need to perform these instructions only if you will be testing the Agilent

54621D/22D Mixed-Signal Oscilloscope.

Equipment Critical Specifications Recommended Model/Part

Digital Multimeter 0.1 mV resolution, 0.005%

accuracy Agilent 34401A

Oscilloscope Calibrator DC offset voltage 6.3 V Fluke 5820A

BNC-Banana Cable Agilent 11001-60001

BNC Tee Agilent 1250-0781

BNC Cable Fluke 50Ω cable, P/N 686318

BNC Test Connector, 8-by-2 User-built (See “Obtain a BNC

connector and an 8-by-2 section

of Berg strip.” on page 3-4.)

Test Fixture PV test fixture Agilent 01660-63801

Probe Cable Agilent 01650-61607

service.book Page 6 Wednesday, December 18, 2002 8:35 AM

3-7

Testing Performance

To verify digital channel threshold accuracy

1Turn on the test equipment and the oscilloscope. Let them warm up for

30 minutes before starting the test.

2Set up the oscilloscope calibrator.

aSet the oscilloscope calibrator to provide a DC offset voltage at the

Channel 1 output.

bUse the multimeter to monitor the oscilloscope calibrator DC output

voltage.

3Use either method 1 or method 2, described in the following, to connect

the digital channels for testing.

aMethod 1 — Using the Test Connector

Use the 8-by-2 test connector and the BNC cable assembly to connect digital

channels D0-D7 to one side of the BNC Tee. Then connect the D0-D7 ground

lead to the ground side of the 8-by-2 connector. See figure 3-2.

Figure 3-2

Setting Up Equipment and Test Connector for the Threshold Test

Measure time

Save/Recall

Entry

Mixed Signal Oscilloscope

54620A

16 CHANNEL 500 MSa/s

STORA GE

TRIGGE RHORIZONTAL

CHANNEL

IN P U T S

Line

Time/D iv

Select

Trig ge r o u t

Delay

Positio n

Ext t rigge r in

HP 34401A

Test

Connector

BNC-Banana

cable

Channels 8 - 15

Channels 0 - 7

Oscilloscope

Calibrator

Digital

Multimeter

service.book Page 7 Wednesday, December 18, 2002 8:35 AM

3-8

Testing Performance

To verify digital channel threshold accuracy

bMethod 2 — Using the Test Fixture

Use the Agilent 01660-63801 Performance Verification Test Fixture and the

Agilent 01650-61607 cable, BNC Tee, and BNC cable to connect the digital

channels D0 - D15 to the oscilloscope calibrator. See figure 3-3.

Figure 3-3

Setting Up Equipment and Test Fixture for the Threshold Test

4Use a BNC-banana cable to connect the multimeter to the other side of

the BNC Tee.

5Connect the BNC Tee to the Channel 1 output of the calibrator as shown

in figure 3-2 and figure 3-3.

6On the oscilloscope, press the D7 Thru D0 key, then press the Threshold

softkey.

Measu re time

Save/Recall

Entry

Mixed Signal Oscilloscop e

16 CHANNEL 500 MSa/s

STORAG E

TRIGGER

HORIZONTAL

CHANNEL

INPUTS

Line

Time/Div

Select

Trigger out

Delay

Po si tio n

Ex t tr igg er in

thresh2.cdr

HP 34401A

01660-63801

Test Fixture

BNC-Banana

cable

01650-61607

Cable

Oscilloscope

Calibrator

Digital

Multimeter

service.book Page 8 Wednesday, December 18, 2002 8:35 AM

3-9

Testing Performance

To verify digital channel threshold accuracy

7Press the oscilloscope User softkey, then turn the Entry knob () on

the front panel on the oscilloscope to set the threshold test settings as

shown in Table 3-3.

Table 3-3 Threshold Accuracy Voltage Test Settings

8Do the following steps for each of the threshold voltage levels shown

in Table 3-3.

aSet the threshold voltage shown in the User softkey using the Entry knob on

the oscilloscope.

bEnter the corresponding DC offset voltage on the oscilloscope calibrator

front panel. Then use the multimeter to verify the voltage.

Digital channel activity indicators are displayed on the status line at the top

of the oscilloscope display. The activity indicators for D7-D0 should show all

of the channels at digital high levels.

cUse the knob on the oscilloscope calibrator to decrease the offset voltage,

in increments of 10 mV, until the activity indicators for digital channels

D7-D0 are all at digital low levels. Record the oscilloscope calibrator voltage

in the performance test record.

dUse the knob on the oscilloscope calibrator to increase the offset voltage,

in increments of 10 mV, until the activity indicators for digital channels

D7-D0 are all at digital high levels. Record the oscilloscope calibrator

voltage in the performance test record.

Before proceeding to the next step, make sure that you have recorded the

oscilloscope calibrator voltage levels for each of the threshold settings shown

in Table 3-3.

9Use the 8-by-2 test connector or the Agilent 01660-63801 Test Fixture

to connect digital channels D15-D8 to the output of the oscilloscope

calibrator. Then connect the D15-D8 ground lead to the ground side of

the 8-by-2 connector.

10 Repeat this procedure for digital channels D15-D8 to verify threshold

accuracy and record the threshold levels in the Performance Test

Record.

Threshold voltage setting

(in oscilloscpe User softkey) DC offset voltage setting

(on oscilloscope calibrator) Limits

+5.00 V +5.250 V ±1 mV dc Lower limit = +4.750 V

Upper limit = +5.250 V

–5.00 V –4.750 V ±1 mV dc Lower limit = –5.250 V

Upper limit = –4.750 V

0.00 V +100m V ±1 mV dc Upper limt = +100 mV

Lower limit = –100 mV

service.book Page 9 Wednesday, December 18, 2002 8:35 AM

3-10

Testing Performance

To verify voltage measurement accuracy

This test verifies the voltage measurement accuracy. In this test, you will

measure the output of a power supply using dual cursors on the oscilloscope,

and compare the results with the multimeter reading.

Test limits: ±2.0% of full scale ±1 LSB*

• Full scale is defined as 16 mV on the 1 mV/div range.

• Full scale on all other ranges is defined as 8 divisions times the

V/div setting.

*1 LSB = 0.4% of full scale

Table 3-4 Equipment Required to Verify Voltage Measurement Accuracy

Do this procedure first for Channel 1. Then repeat the procedure for Channel 2.

1Set up the oscilloscope.

aAdjust the channel 1 position knob to place the baseline at approximately

0.5 division from the bottom of the display.

Equipment Critical Specifications Recommended Model/Part

Power supply 14 mV to 35 Vdc,

0.1 mV resolution Fluke 5820A or Agilent 3245A

Digital multimeter Better than 0.01% accuracy Agilent 34401A

Cable BNC, Qty 2 Agilent 10503A

Shorting cap BNC Agilent 1250-0774

Adapter BNC (f) to banana (m) Agilent 1251-2277

Adapter BNC tee (m) (f) (f) Agilent 1250-0781

Blocking capacitor Agilent 10240B

service.book Page 10 Wednesday, December 18, 2002 8:35 AM

3-11

Testing Performance

To verify voltage measurement accuracy

bSet the Volts/Div setting to the value in the first line in Table 3-5.

Table 3-5 Settings Used to Verify Voltage Measurement Accuracy

cPress the Acquire key. Then press the Averaging softkey and set #Avgs to 64.

Wait a few seconds for the measurement to settle.

2Press the Cursors key, set the Mode softkey to Normal, then press the XY

softkey and select Y. Press the Y1 softkey, then use the Entry knob

(labeled on the front panel) to set the Y1 cursor on the baseline of

the signal.

Volts/Div Setting Power Supply Setting Test Limits

5 V/Div 35 V 34.04 V to 35.96 V

2 V/Div 14 V 13.616 V to 14.384 V

1 V/Div 7 V 6.808 V to 7.192 V

0.5 V/Div 3.5 V 3.404 V to 3.596 V

0.2 V/Div 1.4 V 1.3616 V to 1.4384 V

0.1 V/Div 700 mV 680.8 mV to 719.2 mV

50 mV/Div 350 mV 340.4 mV to 359.6 mV

20 mV/Div 140 mV 136.16 mV to 143.84 mV

10 mV/Div 70 mV 68.08 mV to 71.92 mV

5 mV/Div 35 mV 34.04 mV to 35.96 mV

2 mV/Div 14 mV 13.616 mV to 14.384 mV

1 mV/Div* 7 mV 6.616 mV to 7.384 mV

*Full scale is defined as 16 mV on the 1 mV/div range.

Full scale on all other ranges is defined as 8 divisions times the V/div setting.

service.book Page 11 Wednesday, December 18, 2002 8:35 AM

3-12

Testing Performance

To verify voltage measurement accuracy

3Use the BNC tee and cables to connect the oscilloscope calibrator

/power supply to both the oscilloscope and the multimeter.

4Adjust the output so that the multimeter reading displays the first

Volts/div supply setting value in Table 3-5.

Wait a few seconds for the measurement to settle.

5Press the Y2 softkey, then position the Y2 cursor to the center of the

voltage trace using the Entry knob.

The ∆Y value on the lower line of the display should be within the test limits of

Table 3-5. If a result is not within the test limits, see the “Troubleshooting”

chapter. Then return here.

6Continue to check the voltage measurement accuracy with the

remaining Volts/div setting values in Table 3-5.

7When you are finished checking all of the power supply setting values,

disconnect the power supply from the oscilloscope.

8Repeat this procedure for Channels 2, 3, and 4, if applicable on your

oscilloscope model.

Figure 3-4

Using a Blocking Capacitor to Reduce Noise

Use a Blocking Capacitor to Reduce Noise

On the more sensitive ranges, such as 1 mV/div, 2 mV/div, and 5 mV/div, noise may

be a factor. To eliminate the noise, use a BNC Tee, blocking capacitor, and BNC

shorting cap to shunt the noise to ground. See figure 3-4.

To oscilloscope input

BNC shorting

cap

To Power Supply or

Calibrator

Blocking

Capacitor

service.book Page 12 Wednesday, December 18, 2002 8:35 AM

3-13

Testing Performance

To verify bandwidth

This test verifies bandwidth. In this test you will use an oscilloscope calibrator

with a level sinewave output.

You will use the peak-to-peak volt age both at 1 MHz and at bandwidth frequency

to verify the bandwidth response of the oscilloscope.

54622A, 54622D, and 54624A

Test limits at 1 mV/div to 5 V/div:

• All channels (±3 dB)

• dc to 100 MHz

• ac coupled 10 Hz to 100 MHz

54621A and 54621D

Test limits at 1 mV/div to 5 V/div:

• All channels (±3 dB)

• dc to 60 MHz

• ac coupled 10 Hz to 60 MHz

Table 3-6 Equipment Required to Verify Bandwidth

Equipment Critical Specifications Recommended Model/Part

Oscilloscope Calibrator Fluke 5820A

Cable * Type N (m), 24-inch Agilent 11500B

Feedthrough 50Ω, BNC (m) and (f) Agilent 11048C

* The oscilloscope calibrator is supplied with 2 or more coaxial cables N (m), BNC (m),

1 meter long, Fluke P/N 686318.

service.book Page 13 Wednesday, December 18, 2002 8:35 AM

3-14

Testing Performance

To verify bandwidth

1Connect the oscilloscope calibrator output through a 50Ω feedthrough

to the oscilloscope channel 1 input.

2Set up the oscilloscope.

aSet the time base to 500 ns/div.

bSet the Volts/Div for channel 1 to 200 mV/div.

cPress the Acquire key, then press the Averaging softkey.

dTurn the Entry knob to set #Avgs to 8 averages.

3Set the calibrator to “Level Sine” and OPR/STBY to “OPR”.

4Set the calibrator for 1 MHz and six divisions of amplitude.

5Press Autoscale on the oscilloscope.

6Press the Quick Meas key, then press the Peak-Peak softkey.

Wait a few seconds for the measurement to settle (averaging is then complete).

View the Pk-Pk reading at the bottom of the display.

Record the reading: Vp-p = _______ V.

7Change the frequency of the signal generator to the value shown below

for your instrument.

Table 3-7 Signal Generator Frequency Setting

8Change the time base to 5 ns/div.

aWait a few seconds for the measurement to settle.

bView the Pk-Pk reading at the bottom of the display.

cRecord the reading: Vp-p = ______ mV.

9Calculate the response using this formula:

If the result is not ±3 dB, see the “Troubleshooting” chapter. Then return here.

10 Repeat this procedure (steps 1 to 9) for channel 2, 3, and 4, as applicable

to your oscilloscope model.

Proceed to the next step after you have completed the procedure for channels

2, 3, and 4, as applicable.

Selected Channel 54621A/21D 54622A/22D 54624A

Channel 1 60 MHz 100 MHz 100 MHz

Channel 2 60 MHz 100 MHz 100 MHz

Channel 3 ——100 MHz

Channel 4 ——100 MHz

20 10log Step8Result

Step6Result

--------------------------------

⋅

service.book Page 14 Wednesday, December 18, 2002 8:35 AM

3-15

Testing Performance

To verify horizontal Dt and 1/Dt accuracy

To verify horizontal ∆t and 1/∆t accuracy

This test verifies the horizontal ∆t and 1/∆t accuracy. In this test, you will use

the oscilloscope to measure the output of a time mark generator.

Test limits: ±0.01% of reading ±0.1% of full scale ±40 ps (same channel)

Table 3-8 Equipment Required to Verify Horizontal ∆t and 1/∆t Accuracy

1Connect the oscilloscope calibrator to channel 1 using the 50 Ω

feedthrough at the oscilloscope input. Then, select Marker and set the

calibrator for 100 µs markers.

2Set up the oscilloscope.

aPress the Display key, then set the Vectors softkey to off.

bPress the Autoscale key.

cSet the time base to 20 µs/div.

dPress the Main/Delayed key, then set the Time Ref softkey to Left.

eAdjust the Trigger Level knob to obtain a stable display.

3Press the Quick Meas softkey, set the Source softkey to 1, then select and

measure Frequency and Period. Measure the following:

Frequency 10 kHz — The test limits are 9.98 kHz to 10.02 kHz.

Period 100 µs — The test limits are 99.79 µs to 100.2 µs.

If the measurements are not within the test limits, see the “Troubleshooting”

chapter. Then return here.

Equipment Critical Specifications Recommended Model/Part

Oscilloscope Calibrator Stability 5 ppm after 1/2 hour Fluke 5820A

Cable BNC, 3 feet Agilent 10503A

Feedthrough 50Ω, BNC connectors (m) and (f) Agilent 11048C

service.book Page 15 Wednesday, December 18, 2002 8:35 AM

3-16

Testing Performance

To verify horizontal Dt and 1/Dt accuracy

4Change the calibrator to 1-µs markers. Change the time base to

200 ns/div. Adjust the trigger level to obtain a stable display.

5Measure the following:

Frequency 1 MHz — The test limits are 997.9 kHz to 1.002 MHz.

Period 1 µs — The test limits are 997.9 ns to 1.002 µs.

If the measurements are not within the test limits, see the “Troubleshooting”

chapter. Then return here.

54622A/22D/24A only

6Change the calibrator to 10-ns markers. Change the time base to

5 ns/div. Adjust the trigger level to obtain a stable display.

7Measure the following:

Frequency 100 MHz — The test limits are 99.10 MHz to 100.9 MHz.

Period 10 ns — The test limits are 9.91 ns to 10.09 ns.

If the measurements are not within the test limits, see the “Troubleshooting”

chapter. Then return here.

54621A and 54621D

only

8Change the calibrator to 20 ns markers. Change the time base to 5 ns/div.

Adjust the trigger level to obtain a stable display.

9Measure the following:

Frequency 50 MHz — The test limits are 49.77 MHz to 50.23 MHz.

Period 20 ns — The test limits are 19.91 ns to 20.09 ns.

If the measurements are not within the test limits, see the “Troubleshooting”

chapter. Then return here.

service.book Page 16 Wednesday, December 18, 2002 8:35 AM

3-17

Testing Performance

To verify trigger sensitivity

This test verifies the trigger sensitivity. In this test, you will apply 25 MHz to the

oscilloscope. You will then decrease the amplitude of the signal to the specified

levels, and check to see if the oscilloscope is still triggered. You will then repeat

the process at the upper bandwidth limit.

Test limits for the Internal trigger:

1 mV to 5 V/div (dc to max bandwidth): greater of 0.35 div or 2.5 mVp-p

Test limits for the External trigger:

dc to 25 MHz: <75 mVp-p

25 MHz to max bandwidth: <150 mVp-p

Table 3-9 Equipment Required to Verify Trigger Sensitivity

Equipment Critical Specifications Recommended Model/Part

Oscilloscope Calibrator 25-MHz, 60-MHz and 100-MHz sine

waves Fluke 5820A

Power splitter Outputs differ < 0.15 dB Agilent 11667B

Cable * BNC, Qty 3 Agilent 10503A

Adapter N (m) to BNC (f), Qty 3 Agilent 1250-0780

Feedthrough 50Ω, BNC connectors (m) and (f) Agilent 11048C (2 required)

* The oscilloscope calibrator is supplied with 2 or more coaxial cables N (m), BNC (m),

1 meter long, Fluke P/N 686318.

service.book Page 17 Wednesday, December 18, 2002 8:35 AM

3-18

Testing Performance

To verify trigger sensitivity

Test Internal Trigger Sensitivity

1Press the Save/Recall key, then press the Default Setup softkey.

2Connect the calibrator to channel 1 using a 50Ω feedthrough at the

oscilloscope input.

3Verify the trigger sensitivity at 25 MHz and 0.35 divisions.

aSet the output of the calibrator to 25 MHz, and set the amplitude to about

100 mVp-p.

bPress the Autoscale key.

cSet the time base to 50 ns/div.

dSet channel 1 to 100 mV/div.

eDecrease the output of the calibrator until 0.35 vertical divisions of the

signal are displayed.

The trigger should be stable. If the trigger is not stable, try adjusting the

trigger level. If adjusting the trigger level makes the trigger stable, the test

still passes. If adjusting the trigger does not help, see the “Troubleshooting”

chapter. Then return here.

fRecord the result as Pass or Fail in the Performance Test Record.

4Verify the trigger sensitivity at maximum bandwidth and 0.35 division.

aChange the output of the calibrator to 100 MHz for the 54622A/22D/24A or

60 MHz or the 54621A/21D, and set the amplitude to about 100 mVp-p.

bSet the time base to 10 ns/div.

cDecrease the output of the calibrator until 0.35 vertical divisions of the

signal is displayed.

The trigger should be stable. If the trigger is not stable, try adjusting the

trigger level. If adjusting the trigger level makes the trigger stable, the test

still passes. If adjusting the trigger does not help, see the “Troubleshooting”

chapter. Then return here.

dRecord the result as Pass or Fail in the Performance Test Record.

5Repeat this procedure for channels 2, 3, and 4, as applicable to your

oscilloscope model.

service.book Page 18 Wednesday, December 18, 2002 8:35 AM

3-19

Testing Performance

To verify trigger sensitivity

Test External Trigger Sensitivity

Verify the external trigger sensitivity at these settings:

100 MHz (54622A/22D/24A), <150 mVp-p

60 MHz (54621A/21D), <150 mVp-p

25 MHz (All models), <75 mVp-p

1Use the power splitter to connect the calibrator to both the channel 1

input and the external trigger input. The Ext Trigger input is on the rear

panel of the mixed-signal oscilloscope and the 4-channel oscilloscope.

Connect 50Ω feedthroughs to the oscilloscope inputs.

2Change the output of the calibrator to 100 MHz for the 54622A/22D/24A

or 60 MHz for the 54621A/21D, and set the amplitude to 106 mVrms

(300 mVp-p).

The power splitter divides the 300 mVp-p so that 150 mVp-p is applied to each

of the oscilloscope inputs.

3Press the Autoscale key.

4Press the Trigger Edge key, then press the Ext softkey to set the trigger

source to external trigger.

5Check for stable triggering, and adjust the trigger level if necessary.

6Record the results as Pass or Fail in the Performance Test Record.

If the test fails, see the “Troubleshooting” chapter. Then return here.

7Change the output of the calibrator to 25 MHz and set the amplitude to

25.74 mVrms (75 mVp-p).

8Check for stable triggering, and adjust the trigger level if necessary.

9Record the results as Pass or Fail in the Performance Test Record.

If the test fails, see the “Troubleshooting” chapter. Then return here.

service.book Page 19 Wednesday, December 18, 2002 8:35 AM

3-20

Agilent 54622A/22D/24A Performance Test Record

Agilent 54622A/54622D/54624A

Serial No. ______________________________________ Test by _____________________________

Test Interval ____________________________________ Work Order No. ______________________

Recommended Next Testing ________________________ Temperature ____________

Threshold Specification Limits Ch D7-D0 Ch D15-D8

Accuracy Test 5 V - 250 mV 4.750 V ________ ________

(100 mV + 3% of

threshold setting) 5 V + 250 mV 5.250 V ________ ________

-5 V - 250 mV -5.250 V ________ ________

-5 V + 250 mV -4.750 V ________ ________

0 V - 100 mV -100 mV ________ ________

0 V + 100 mV 100 mV ________ ________

Voltage Measurement Accuracy

Range Power Supply Setting Test Limits Channel 1 Channel 2 Channel 3 Channel 4

5 V/Div 35 V 34.04 V to 35.96 V ________ ________ ________ ________

2 V/Div 14 V 13.616 V to 14.384 V ________ ________ ________ ________

1 V/Div 7 V 6.808 V to 7.192 V ________ ________ ________ ________

500 mV/Div 3.5 V 3.404 V to 3.596 V ________ ________ ________ ________

200 mV/Div 1.4 V 1.3616 V to 1.4384 V ________ ________ ________ ________

100 mV/Div 700 mV 680.8 mV to 719.2 mV ________ ________ ________ ________

50 mV/Div 350 mV 340.4 mV to 359.6 mV ________ ________ ________ ________

20 mV/Div 140 mV 136.16 mV to 143.84 mV ________ ________ ________ ________

10 mV/Div 70 mV 68.08 mV to 71.92 mV ________ ________ ________ ________

5 mV/Div 35 mV 34.04 mV to 35.96 mV ________ ________ ________ ________

2 mV/Div 14 mV 13.616 mV to 14.384 mV ________ ________ ________ ________

1 mV/Div 7 mV 6.616 mV to 7.384 mV ________ ________ ________ ________

Bandwidth Test Limits Channel 1 Channel 2 Channel 3 Channel 4

3 dB at 100 MHz ________ ________ ________ ________

Horizontal ∆t and 1/∆t Accuracy

Generator Setting Test Limits Results

Frequency 10 kHz 9.98 kHz to 10.02 kHz ________

Period 100 µs 99.79 µs to 100.2 µs ________

Frequency 1 MHz 997.9 kHz to 1.002 MHz ________

Period 1 µs 997.9 ns to 1.002 µs ________

Frequency 100 MHz 99.10 MHz to 100.9 MHz ________

Period 10 ns 9.91 ns to 10.09 ns ________

Trigger Sensitivity Test Limits Channel 1 Channel 2 Channel 3 Channel 4

Internal trigger 25 MHz at 0.35 division ________ ________ ________ ________

100 MHz at 0.35 division ________ ________ ________ _______

Ext

External trigger 25 MHz at <75 mVp-p ________

100 MHz at <150 mVp-p ________

service.book Page 20 Wednesday, December 18, 2002 8:35 AM

3-21

Agilent 54621A/21D Performance Test Record

Agilent 54621A/54621D