Keysight Technologies X-Series Manuale utente

N9042B

Cooling Fan Upgrade

Option HW2

X-Series Signal Analyzer

INSTALLATION NOTE

Notices

The information contained in this document is subject to change without notice.

Keysight Technologies makes no warranty of any kind with regard to this material, including but

not limited to, the implied warranties of merchantability and fitness for a particular purpose.

Keysight Technologies shall not be liable for errors contained herein or for incidental or

consequential damages in connection with the furnishing, performance, or use of this material.

Manual Part Number

N9042-90013

Edition

Edition 1, January 2023

Supersedes: none

Printed in USA/Malaysia

Published by:

Keysight Technologies, Inc.

1400 Fountaingrove Parkway

Santa Rosa, CA 95403

Installation Note N9042-90013 3

Option HW2 – Cooling Fan Upgrade

This document provides detailed instructions for the installation of the Cooling Fan upgrade for the

N9042B UXA Signal Analyzer.

Please be sure to read this entire document before attempting to perform this upgrade. Then, be

sure to perform the steps in this procedure in the order that they are listed so that the installation

will complete properly, and the instrument will function as desired when completed.

Compatibility

This instrument option requires no specific instrument firmware version and is compatible with all

N9042B instruments. However, all instruments with option G2H do not require this upgrade, they

include it from the factory.

Instrument Calibration

The validity of any existing calibration that the instrument being upgraded may have will not be

affected by the installation of this upgrade.

Products Affected: UXA N9042B

To Be Performed By: (X) Keysight Service Center

(X) Advanced User

()User

Estimated Installation Time:

Estimated Adjustment Time:

Estimated Verification Time:

1.5 Hours

0.0 Hours

1.0 Hours

4Installation Note N9042-90013

What You Will Find in this Document

ESD Information............................................................................................................ page 5

Upgrade Contents ........................................................................................................ page 7

Tools Required .............................................................................................................. page 7

Initial Instrument Functionality Check ........................................................................ page 7

Option G2H Check........................................................................................................ page 7

Upgrade Instructions.................................................................................................... page 8

Hardware Removal ................................................................................................... page 8

Hardware Installation ............................................................................................ page 13

Verify Operation ..................................................................................................... page 16

Instrument Button Up............................................................................................ page 17

Adjustments and Performance Verification ............................................................. page 18

Manual Procedures Required................................................................................ page 18

Automated Utilities Required................................................................................ page 18

Automated Adjustments Required ....................................................................... page 18

Automated Performance Verification Testing Required ...................................... page 18

Installation Note N9042-90013 5

ESD Information

Protection from Electrostatic Discharge

Electrostatic discharge (ESD) can damage or destroy electronic components. All work on electronic

assemblies should be performed at a static-safe workstation. Figure 1 shows an example of a

static-safe workstation using two types of ESD protection:

— Conductive table-mat and wrist-strap combination.

— Conductive floor-mat and heel-strap combination.

Both types, when used together, provide a significant level of ESD protection. Of the two, only the

table-mat and wrist-strap combination provides adequate ESD protection when used alone. To

ensure user safety, the static-safe accessories must provide at least 1 megohm of isolation from

ground.

Figure 1 Example of a Static-Safe Workstation

These techniques for a static-safe workstation should not be used when working on circuitry

with a voltage potential greater than 500 volts.

6Installation Note N9042-90013

ESD Information

Handling of Electronic Components and ESD

The possibility of unseen damage caused by ESD is present whenever components are transported,

stored, or used. The risk of ESD damage can be greatly reduced by paying close attention to how all

components are handled.

— Perform work on all components at a static-safe workstation.

— Keep static-generating materials at least one meter away from all components.

— Store or transport components in static-shielding containers.

Test Equipment Usage and ESD

— Before connecting any coaxial cable to an analyzer connector, momentarily short the center and

outer conductors of the cable together.

— Personnel should be grounded with a 1 megohm resistor-isolated wrist-strap before touching

the center pin of any connector and before removing any assembly from the analyzer.

— Be sure that all analyzers are properly earth-grounded to prevent build-up of static charge.

For Additional Information about ESD

For more information about preventing ESD damage, contact the Electrical Over

Stress/Electrostatic Discharge (EOS/ESD) Association, Inc. The ESD standards developed by this

agency are sanctioned by the American National Standards Institute (ANSI).

Always handle printed circuit board assemblies by the edges. This will reduce the possibility of

ESD damage to components and prevent contamination of exposed plating.

Installation Note N9042-90013 7

Upgrade Contents

This upgrade kits includes a new preassembled fan assembly to replace the existing one, along with

a new instrument dress cover to match the new location of the cooling fans. This kit is intended to

be used when either an older version of the assembly needs replacing, or when the owner of the

instrument has requested to have this newly designed assembly installed to reduce the acoustic

noise level of the instrument.

Tools Required

— TORX Driver, T-10

— TORX Driver, T-20

—Multi-BitTorqueDriver

Initial Instrument Functionality Check

Power on the instrument and allow it to complete its boot up process. Verify that there are no

instrument messages that would indicate that there is an issue with either the instrument hardware

or software. If there are any issues, investigate and fix the problem before continuing with this

upgrade.

Option G2H Check

While the instrument is still powered on check to see if the instrument has option G2H installed. To

do so press System, Show System and look on the System Information screen for option G2H.

If the instrument has option G2H installed it does not need this upgrade, as it should already have

this hardware installed.

Table 1-1 Upgrade Contents

Part Number Description Quantity

n/a Fan Assembly 1

N9041-60070 Dress Cover Assembly 1

8Installation Note N9042-90013

Upgrade Instructions

Hardware Removal

Dress Cover Removal

1. Turn the instrument off and disconnect the power cord.

2. Referring to Figure 2, remove the two screws (1) that attach the strap handles (2) from both

sides of the instrument and remove the strap handles.

Figure 2 Dress Cover Removal

3. Remove the four rear feet (4) by removing the four screws (3) and washers that attach them.

4. Remove the four bottom feet (6) by first removing the locking keys and then lifting the tabs

and sliding the foot toward the tabs.

5. Carefully slide the dress cover (5) off the instrument. This dress cover will not be reused.

Installation Note N9042-90013 9

Upgrade Instructions

Front Panel Removal

6. Referring to Figure 3, remove W1 (1) from the A7 Midplane board (2).

Figure 3 Disconnect W1 From A7 Midplane

7. Referring to Figure 4, remove the seven flathead screws (1) from each side of the A1 Front

Panel assembly and two flathead screws (2) from the bottom that attach it to the instrument.

Figure 4 Front Panel Screws

10 Installation Note N9042-90013

Upgrade Instructions

8. Referring to Figure 5, slide the A1 Front Panel assembly aware from the instrument enough to

access and remove W2 (1) from the A1A3 Front Panel Daughter board.

Figure 5 W2 Access and Removal

9. Set the A1 Front Panel assembly aside.

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