Keysight Technologies N9020A Installation and operation manual

Notice: This document contains references toAgilent.
Please note that Agilent’s Test and Measurement
business has become Keysight Technologies. For
more information, go to www.keysight.com.
Keysight Technologies
N9020A Signal Analyzer
Analog Baseband IQ Inputs (Option BBA) Retrofit Kit
Installation Note

Notices
© Copyright 2012-2015 Keysight Technologies, Inc.
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
N9020-90189
Supersedes N9020-90167
Edition
Edition 1, May 2015
Printed in USA/Malaysia
Published by:
Keysight Technologies, Inc.
1400 Fountaingrove Parkway
Santa Rosa, CA 95403

Installation Note N9020-90189 3
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Products Affected: N9020A, MXA Signal Analyzer
Serial Numbers: All
Option BBA
To Be Performed By: (X) Keysight Service Center
(X) Personnel Qualified by Keysighta
( ) Customer
a.To ensure that this newly installed option is functioning properly, the procedure that follows includes the
requirement of performing certain adjustments and performance verification tests. However, the completion of
these tests does not guarantee that the instrument meets all advertised specifications.
Software and test equipment is required for making adjustments and for performance verification testing.
Information on how to obtain this software can be found at:
www.keysight.com/find/calibrationsoftware
While Keysight does recommend that a full calibration be performed after the installation of this upgrade, the
end user must ultimately determine whether they want this service or not. If a full calibration is required,
arrangements regarding the level of calibration must be made between the end user and the calibration
provider.
Estimated Installation Time:
Estimated Adjustment Time:
Estimated Verification Time:
2.0 Hours
0.5 Hours
1.25 Hours

4Installation Note N9020-90189
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Introduction
You may have received a front frame replacement kit and a memory upgrade kit in addition to this
Option BBA upgrade kit. If so, it is recommended that you first verify the amount of RAM in the
analyzer by performing the following steps:
1. Turn the instrument on.
2. Verify that the Operating System can be found and that the Keysight Spectrum Analyzer
measurement application starts up and is sweeping.
3. Connect a USB mouse.
4. Verify the RAM size by going to the Start menu, right click on “My Computer”, and select
“Properties”. A window will pop up showing the computer properties. Under the General
information tab the RAM size will be listed.
If the analyzer has 1 GB of RAM, the memory upgrade must be performed. This upgrade should be
installed during the BBA upgrade when there is access to the processor board. Installing the
memory upgrade now will cause extra assembly time that is not necessary. The BBA upgrade
procedure below will identify the appropriate time to perform the memory upgrade.
If the analyzer identifies as having 1 GB of memory and you did not receive the memory upgrade kit
(N9020-60035), stop and send an email to [email protected] with the following details:
— Subject: “1 GB Memory Upgrade Kit (BBA Upgrade)”
— Instrument serial number that is being upgraded
— Complete ship to address, so we priority ship the memory upgrade
If the analyzer already has 2 GB of RAM, you do not need to perform the memory upgrade and can
begin converting the installation of the new front frame. Instructions for the front frame
replacement kit are located inside that kit.
This procedure is used to retrofit Option BBA into the N9020A Signal Analyzer.
Earlier vintages of analyzers had an LCD which uses slightly different mechanical parts. This
installation note addresses both the LCD and LED displays.

Installation Note N9020-90189 5
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Installation Kit Parts List
Quantity Description Keysight Part Number
1 BBIQ Main Board N9020-60093
1 LED Board N9020-63095
1 BBIQ Interface Board N9020-60094
1 LED Board Overlay, Bottom N9020-80013
1 LED Board Overlay, Top N9020-80014
1 Cable, Flex Ribbon 8121-1683
1 Cable, Small Coaxial 8121-1401
1 Fan Bracket W1312-00133
1 Cable, Semi-Rigid N9020-20155
1 Cable, Semi-Rigid N9020-20156
1Inverter Top Shielda
a.These items are only used if the analyzer has an LCD display. LCD’s were used on serial prefix < MY or
SG5124 for the N9020A.
N9020-00010
1Inverter Bottom ShieldaN9020-00011
1 Core Bracket N9020-00012
2Grommeta0400-0385
60 Screws, M3 X 0.5 (8 mm long) 0515-0372
1 Vibration Mount 0460-2725
9 Screws, M3 X 0.5 (6 mm long) 0515-1227
9 Screws, M3 X 0.5 (8 mm long) 0515-1035
2 Screws, Hex Shoulder N9020-20017
4 Screws, M5 X 0.8 (14 mm long) 0515-5209
8 Fan Rivets 0361-1272
2 Main Board Warning Labels N9020-80036
1 Entitlement Certificate 5964-5178
1 Entitlement Certificate Envelope 5967-7169
2 #1 Cable Label 7121-5601
2 #7 Cable Label 7121-5607
2 #0 Cable Label 7121-5610
1Channel Grommet (edge protector)a0400-0018
5 Tie Wrap 1400-0249
1 Installation Note This note
1 Probe tip BNC adapter 5063-2143
1 Cable 8120-2682

6Installation Note N9020-90189
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Tools Required
— T-10 Torx Driver
— T-20 Torx Driver
— 5/16-inch torque wrench
— 1/4-inch socket on 4 lb torque wrench
—scissorsorknife
—diagonalcutters
— USB storage device with > 2 GB free memory
Keysight Service Center
The following kit items will not be installed in the analyzer upgrade and need to be shipped back to
the end user for their use:
— 5063-2143, Probe tip BNC adapter
— 8120-2682, cable
— Entitlement Certificate
Before you disassemble the instrument, turn the power switch to Standby and
unplug the instrument. Failure to unplug the instrument can result in personal
injury.
Electrostatic discharge (ESD) can damage or destroy electronic
components. All work on electronic assemblies should be performed at a
static-safe workstation. Refer to the documentation that pertains to your
instrument for information about static-safe workstations and ordering
static-safe accessories.

Installation Note N9020-90189 7
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Installation Procedure
Standard Instrument (Benchtop Configuration)
1. Disconnect the instrument from ac power.
2. Refer to Figure 1. Using the T-20 driver, remove the 4 screws (1) (two on each side) that
attach the strap handles (2) on each side of the instrument.
3. Remove the four key locks from the instrument four bottom feet.
4. Remove the four instrument bottom feet.
5. Using the T-20 driver, remove the four screws (including washers) (3) that hold the rear feet
(4)in place.
6. Pull the instrument cover (5) off towards the rear of the instrument.
If the instrument is placed on its face during any of the following procedures, be
sure to use a soft surface or soft cloth to avoid damage to the front panel, keys, or
input connector.
Make sure any adapters on the front panel are removed.
If the analyzer has Option PRC, Portable Configuration, go to the “Portable
Instrument (Option PRC)” section to remove the outer case.

8Installation Note N9020-90189
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Figure 1 Benchtop Configuration Outer Case Removal
7. Proceed to the Front Frame Assembly Removal section to remove the front frame.

Installation Note N9020-90189 9
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Portable Instrument (Option PRC)
1. Disconnect the instrument from ac power.
2. Refer to Figure 2. Using the T-20 driver, remove the four screws (1), two on each side, to
detach the Bail Handle Assembly (2) from the front frame.
Figure 2 Bail Handle and Front Bumpers Removal (Option PRC)
3. Using the T-20 driver, remove the four screws (6) (two on each side) that attach the four strap
handle plugs (5) from both sides of the instrument. Discard these screws as they must be
replaced with the 0515-5209 screws supplied in this kit. Otherwise damage to the BBIQ
Interface Board will occur.
4. Refer to Figure 3. Using the T-20 driver, remove the four screws including washers (1) that
hold the rear bumpers (2) in place.
5. Pull the instrument cover (3) off towards the rear of the instrument.
Make sure any adapters on the front panel are removed.

10 Installation Note N9020-90189
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Figure 3 Portable Instrument Outer Case Removal (Option PRC)

Installation Note N9020-90189 11
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Front Frame Assembly Removal
VERY IMPORTANT (MUST READ)
It is critical that the analyzer being upgraded has a compatible front frame for Option BBA. A
compatible front frame will have a total of six screw holes on the left hand side of the analyzer, the
same side where the two fans are located.
Four of the screws are already in use attaching the front frame to the chassis. One screw hole will
be used later in this procedure to attach the BBIQ Interface Board to the side of the front frame. The
other screw is used to mount the strap handle for the Standard Benchtop Configuration or for the
strap handle plug if Option PRC, Portable Configuration is used. Refer to Figure 4.
Figure 4 Compatible Front Frame
If the front frame has a total of 5 mounting holes and you did not receive a replacement front frame,
stop and visit http://www.keysight.com/find/assist. Place a call to the appropriate phone number
about the front frame issue. Keysight will require the original order number and instrument serial
number that is being upgraded.

12 Installation Note N9020-90189
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
1. Refer to Figure 5. Using the T-10 driver, remove the eight screws (1), four on each side, to
detach the front frame from the chassis.
Figure 5 Front Frame Removal
Keysight Technologies uses the serial number information from the analyzer at the
time of the upgrade order to determine if a front frame upgrade kit is required.

Installation Note N9020-90189 13
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
2. Refer to Figure 6. Pull the front frame carefully away from the chassis. Remove the ribbon
cable W1 from the A8 Motherboard.
Figure 6 Front Panel Cable
W1 may have locking springs on each side. Depress the spring on each side of the
connector to remove from the motherboard.
Figures in this installation note show an analyzer with an LED display. Analyzers
with an LCD display will vary slightly in appearance.

14 Installation Note N9020-90189
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Top Brace and Reference Bracket
Removal
1. Refer to Figure 7. To remove the top brace (1) and reference bracket (2), use the T-10 driver
to remove the twelve panhead screws (3) (0515-0372), six on each side, attaching the braces
to the chassis. Also remove the six flathead screws (4) (0515-1227) attaching the top brace to
the boards.
2. Refer to Figure 8. Remove the two screws (3) at the rear panel.
Figure 7 Top Brace and Reference Bracket Removal

Installation Note N9020-90189 15
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Rear Panel
Removal
1. Refer to Figure 8. Using the T-10 driver, remove the remaining eighteen screws (2) attaching
the rear panel (1) to the chassis. The rear panel can now be removed.
2. If the analyzer identified as having 1 GB of RAM on page 4 of this installation note, now is the
appropriate time to install the extra 1 GB RAM into the processor board for a total of 2 GB of
RAM. Locate the memory upgrade kit and begin at page 5 of the “Option MS1, Upgrade to 2
GB SDRAM” installation note. Complete through page 9 and stop at the Functional Check
section as the additional RAM will be verified later in this procedure.
Figure 8 Rear Panel Removal

16 Installation Note N9020-90189
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
RF Bracket
Removal
1. Refer to Figure 9. Remove the RF bracket (1) by removing the remaining eight screws (2)
using the T-10 driver.
Figure 9 RF Bracket Removal

Installation Note N9020-90189 17
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
L.O. Synthesizer Assembly
Removal
1. Refer to Figure 10. Remove the cables W4 and W6 from the L.O. Synthesizer assembly (1)
using the 5/16 inch wrench.
2. The L.O. Synthesizer assembly can now be unplugged from slot 5 on the motherboard by
pulling up on the board and lifted out of the chassis.
Figure 10 L.O. Synthesizer Assembly Removal

18 Installation Note N9020-90189
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Front End Control Assembly
Removal
1. Refer to Figure 11. Remove the ribbon cables W16, W17, and W18 and the wire harness W22
from the Front End Control assembly (1).
2. The Front End Control assembly can now be unplugged from slot 6 on the motherboard by
leveraging up on the ejector and lifting the board up on the other side.
Figure 11 Front End Control Assembly Removal
W22 connects to J301, W18 connects to J103, W16 connects to J801 and W17
connects to J104.

Installation Note N9020-90189 19
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
W4 and W5 Semi-rigid Cables
Removal
1. Refer to Figure 12. Locate W4 and W5. If the part numbers on the cable labels are
N9020-20155 and N9020-20156, you do not need to perform steps 2 - 4 and can skip to the
IMPORTANT note on page 20. Otherwise go to step 2 to remove the existing cables.
2. Before cutting the four tie wraps, make a note on where they are physically located; two up
front and two toward the rear of the analyzer.
3. Cut the four tie wraps and remove semi-rigid cable W4. W4 attaches A13J4 RF Front End
Assembly (1) to A14J740, L.O. Synthesizer Assembly.
4. Remove semi-rigid cable W5. W5 attaches A13J1 RF Front End Assembly (1) to A16J702,
Reference board.
Figure 12 RF Front End Assembly Removal
W3 connects to J2, W20 connects to J6, W4 connects to J4, W5 connects to J1,
W15 connects to J7 and W7 connects to J9 on the RF Front End Assembly.

20 Installation Note N9020-90189
Option BBA, Analog Baseband I/Q Inputs Retrofit Kit
Replacement
1. Refer to Figure 13. Locate angled semi-rigid cable N9020-20156 (W4), supplied in the kit.
Install this cable from A13J4, RF Front End Assembly and locate close to A14J740 L.O.
Synthesizer Assembly, which was previously removed. Torque both ends to 10 inch-pounds
using a 5/16-inch torque wrench.
2. Locate angled semi-rigid cable N9020-20155 (W5), supplied in the kit. Install this cable from
A13J1 RF Front End Assembly to A16J702 Reference board. Torque both ends to
10 inch-pounds using a 5/16-inch torque wrench.
Figure 13 Semi-rigid Cables
3. Install four ties wraps, 1400-0249 in the previous location noted in step 1 above.
IMPORTANT Refer to Figure 14 and Figure 15. Orientate the instrument as shown. If the fan
bracket does not cover the screw hole as shown in Figure 14, the fan bracket
and fan rivets supplied in the upgrade kit will NOT be used. Proceed to the
“Option BBA Hard ware” section.