Keysight Technologies U1818A Manual de servicio

Keysight U1818A/B

Active Differential Probe

Operating and

Service Manual

2 Keysight U1818A/B Operating and Service Manual

Notices

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 Technol-

ogies as governed by United States and

international copyright laws.

Manual Part Number

U1818-90001

Edition

Edition 5, April 17, 2019

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 fur-

nished 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 prod-

ucts may be downloaded from the

Web. Go to http://www.keysight.com/

go/conformity. You can then search by

product number to find the latest Dec-

laration of Conformity.

U.S. Government Rights

The Software is “commercial computer

software,” as defined by Federal Acqui-

sition Regulation (“FAR”) 2.101. Pursu-

ant to FAR 12.212 and 27.405-3 and

Department of Defense FAR Supple-

ment (“DFARS”) 227.7202, the U.S.

government acquires commercial com-

puter 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 stan-

dard commercial license, which is

embodied in its End User License

Agreement (EULA), a copy of which can

be found at http://www.keysight.com/

find/sweula. 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 soft-

ware or commercial computer software

documentation that is not customarily

provided to the public; or (2) Relinquish

to, or otherwise provide, the govern-

ment rights in 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 pursu-

ant to the FAR and the DFARS and are

set forth specifically in writing else-

where 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 27.404.2 and DFARS

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.

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 DIS-

CLAIMS ALL WARRANTIES, EITHER

EXPRESS OR IMPLIED, WITH REGARD

TO THIS MANUAL AND ANY INFORMA-

TION CONTAINED HEREIN, INCLUD-

ING BUT NOT LIMITED TO THE

IMPLIED WARRANTIES OF MER-

CHANTABILITY AND FITNESS FOR A

PARTICULAR PURPOSE. KEYSIGHT

SHALL NOT BE LIABLE FOR ERRORS

OR FOR INCIDENTAL OR CONSE-

QUENTIAL DAMAGES IN CONNECTION

WITH THE FURNISHING, USE, OR

PERFORMANCE OF THIS DOCUMENT

OR OF ANY INFORMATION CON-

TAINED HEREIN. SHOULD KEYSIGHT

AND THE USER HAVE A SEPARATE

WRITTEN AGREEMENT WITH WAR-

RANTY TERMS COVERING THE MATE-

RIAL IN THIS DOCUMENT THAT

CONFLICT WITH THESE TERMS, THE

WARRANTY TERMS IN THE SEPARATE

AGREEMENT SHALL CONTROL.

Safety Information

CAUTION

A CAUTION notice denotes a hazard. It

calls attention to an operating proce-

dure, 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 pro-

ceed beyond a CAUTION notice until

the indicated conditions are fully

understood and met.

WARNING

A WARNING notice denotes a hazard. It

calls attention to an operating proce-

dure, 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.

Keysight U1818A/B Operating and Service Manual 3

Regulatory Markings

The CE mark shows that the

product complies with all the

relevant European Legal

Directives.

This symbol indicates that this is an Industrial Scientific and

Medical Group 1 Class A product.

ICES/NMB-001 indicates that

this ISM device complies with

Canadian ICES-001.

Cet appareill ISM est conforme a

la norme NMB-001 du Canada.

The RCM mark is a registered trademark of the Australian

Communications and Media Authority.

4 Keysight U1818A/B Operating and Service Manual

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.

To return this unwanted instrument, contact your nearest Keysight Service Center,

or visit http://about.keysight.com/en/companyinfo/environment/takeback.shtml

for more information.

Sales and Technical Support

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

the following Keysight websites:

–www.keysight.com/find/mta

(product-specific information and support, software and

documentation updates)

–www.keysight.com/find/assist

(worldwide contact information for repair and service)

Keysight U1818A/B Operating and Service Manual 5

Table of Contents

Regulatory Markings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Waste Electrical and Electronic Equipment (WEEE) Directive . . . . . . . .4

Product category: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Sales and Technical Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

1Introduction

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

2 Service and Maintenance

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Other Probe Heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Other Available Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21

Handling Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Connecting/Disconnecting probe heads . . . . . . . . . . . . . . . . . . . . .24

Handling the probe cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Handling the probe amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Handling the differential browsers with ergonomic handle . . . . . . .28

Handling SMA probe heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29

Temperature rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Securing probe heads and amplifiers to your DUTs . . . . . . . . . . . . .31

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

Service Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

Replacing the wires on N5381A and N5382A probe heads . . . . . . .33

Procedures and soldering tips for using N5425A InfiniiMax ZIF probe

heads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

6 Keysight U1818A/B Operating and Service Manual

THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK.

Keysight U1818A/B Operating and Service Manual 7

List of Figures

Figure 1-1 Keysight U1818A/B active differential probe . . . . . . .10

Figure 1-2 Power probe bias cable . . . . . . . . . . . . . . . . . . . . . . . .11

Figure 1-3 Banana plug cable . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Figure 1-4 E2695A differential SMA probe head for InfiniiMax probe

Figure 1-5 N5380A InfiniiMax II 12GHz differential SMA adapter 12

Figure 1-6 N5381A 12GHz InfiniiMax differential solder-in probe head

and accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Figure 1-7 N5382A InfiniiMax II 12GHz differential browser . . . . .13

Figure 1-8 N5425B 12GHz InfiniiMax ZIF solder-in probe head . .14

Figure 1-9 N5426A 12GHz InfiniiMax ZIF Tip - kit of 10 . . . . . . . .14

Figure 2-1 N5451A differential long wire ZIF tip . . . . . . . . . . . . . .17

Figure 2-2 E2677A 12 GHz differential solder-in probe head . . .17

Figure 2-3 E2678A single-ended/differential socketed probe head

Figure 2-4 E2675A differential browser kit . . . . . . . . . . . . . . . . . .18

Figure 2-5 E2679A single-ended solder probe head . . . . . . . . . .19

Figure 2-6 E2676A single-ended browser probe head . . . . . . . . .19

Figure 2-7 E2669A differential connectivity kit . . . . . . . . . . . . . . .20

Figure 2-8 E2668A single-ended connectivity kit . . . . . . . . . . . . .20

Figure 2-9 N2880A in-line attenuator kit . . . . . . . . . . . . . . . . . . .21

Figure 2-10 N2881A DC blocking capacitor . . . . . . . . . . . . . . . . . .21

Figure 2-11 11852B minimum loss attenuator pad . . . . . . . . . . . .21

Figure 2-12 N2784A 1-arm probe positioner . . . . . . . . . . . . . . . . .22

Figure 2-13 N2785A 2-arm probe positioner . . . . . . . . . . . . . . . . .22

Figure 2-14 N2787A 3D probe positioner . . . . . . . . . . . . . . . . . . . .23

Figure 2-15 N5450A InfiniiMax extreme temperature cable extension

Figure 2-16 E3620A 50W dual output power supply, two 25V, 1A 23

Figure 2-17 Pull the probe head straight out to disconnect it from the

amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Figure 2-18 An improper way to disconnect a probe head from an

amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25

Figure 2-19 Straight pins in an amplifier . . . . . . . . . . . . . . . . . . . . .25

8 Keysight U1818A/B Operating and Service Manual

Figure 2-20 The recommended way to coil and store your probe . 27

Figure 2-21 Steps to mount the browser in the ergonomic handle 28

Figure 2-22 Steps to remove the browser from the ergonomic handle

Figure 2-23 Attaching the SMA head support . . . . . . . . . . . . . . . . 30

Figure 2-24 Correct securing methods . . . . . . . . . . . . . . . . . . . . . . 31

Figure 2-25 Incorrect securing method because glue is placed on the

probe head tip . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 2-26 Holding tip with vise . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Figure 2-27 Use trim gauge to gauge the wire . . . . . . . . . . . . . . . . 36

Figure 2-28 Cut the wires even with the trim gauge . . . . . . . . . . . 37

Figure 2-29 N5382A wire bend down at about 30 degree . . . . . . . 37

Figure 2-30 ZIF tip (open position) and ZIF probe head . . . . . . . . . 39

Figure 2-31 ZIF tip (closed position) with ZIF probe head inserted 39

Figure 2-32 IC package for example ZIF tip installation . . . . . . . . . 41

Figure 2-33 Solder added to target points . . . . . . . . . . . . . . . . . . . 42

Figure 2-34 Fluxing of the target points . . . . . . . . . . . . . . . . . . . . . 42

Figure 2-35 Small amount of solder added to ZIF Tip of soldering iron

Figure 2-36 ZIF tip positioned and soldered in place . . . . . . . . . . . 44

Figure 2-37 Using non-conductive tool to open the ZIF connector . .

Figure 2-38 ZIF Tip left behind in DUT with ZIF latch open . . . . . . 45

Figure 2-39 Use non-conductive tool to close the latch . . . . . . . . 46

Keysight U1818A/B Active Differential Probe

Operating and Service Manual

1 Introduction

Product Overview 10

This chapter provides you the overview of Keysight U1818A/B active differential

probe.

1Introduction

10 Keysight U1818A/B Operating and Service Manual

Product Overview

The Keysight U1818A/B active differential probes provides high differential input

impedance from 100kHz to 7 or 12GHz. The new probes are designed to be

directly compatible with Keysight’s network, spectrum and signal source

analyzers. The U1818A/B probes provide high-frequency probing solution for R&D

and quality assurance engineers performing RF/Microwave and high-speed

digital design and validation in the wireline, wireless communications and

aerospace/defence industries.

Figure 1-1 Keysight U1818A/B active differential probe

Key features of Keysight U1818A/B active differential probes

– Broad bandwidth with flat frequency response, +/- 1.5dB, which ensures

excellent measurement accuracy and helps users achieve the best product

specifications

– Low noise floor, less than -130dBm/Hz at 10MHz to 12GHz, which allows

measurements to be made at a low signal amplitude

– Convenient biasing from Keysight’s RF and microwave instruments probe

power port or bench top power supply for user flexibility

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