Agilent Technologies PSA Series Installation and operation manual

Installation Note
Part Number E4440-90613 Supersedes: E4440-90324
Printed in USA April 2008
Agilent PSA Series Spectrum Analyzers
Switchable Microwave Preselector Bypass
Option 123

Notice.
The information contained in this document is subject to change without notice.
Agilent 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. Agilent 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.
© Copyright 2004-2008 Agilent Technologies, Inc.

Installation Note E4440-90613 3
Switchable Microwave Preselector Bypass Installation Kit
Switchable Microwave Preselector Bypass
Installation Kit
Introduction
This installation note explains how to install the Switchable Microwave Preselector
Bypass into newer instruments that have the serial prefix listed above.
Because the mixer in this kit requires the same FELOMA LO output that the external
mixing option AYZ requires, the two options cannot be installed at the same time.
The retrofit adds a switchable alternate signal path when the analyzer start frequency is
above 3.05 GHz. This alternate path bypasses the preselector filter and mixer in the
normal highband path. The advantage of bypassing the preselector is that the
preselector filter will drift with time and temperature and will cause small amplitude
errors.
When the preselector is bypassed, images, multiples and out of band responses will
appear on the analyzer display since there is no longer a bandpass filter present to limit
the input frequency range of the analyzer. Therefore, the display may show many signal
responses even though only one response is the true signal. Since the preselector can be
switched in or out easily, it is possible to find a signal in preselected mode and tune to it,
then switch the preselector out and measure it.
Products Affected: PSA E4446A
PSA E4447A
PSA E4448A
Serial Numbers: US4430 / US9999
MY4430 / MY9999
SG4430 / SG9999
To Be Performed By: (X) Agilent Service Center
(X) Personnel Qualified by Agilent
( ) Customer
Estimated Installation Time:
Estimated Adjustment and Verification Time:
2.5 Hours
5.5 Hours (see note 1)
Additional Recommended Task Agilent recommends that a full calibration be
performed to verify instrument specifications.
(see note 2)

4Installation Note E4440-90613
Switchable Microwave Preselector Bypass Installation Kit
NOTE
1. The installation of this kit requires that some re-adjustment and performance testing
be performed in order to assure the new option is functioning properly. This installation
note includes a list of required adjustments and performance tests. Completing the list
of required performance tests does not guarantee the instrument meets all
specifications.
2. The instrument end user must determine whether they need a full instrument
calibration following the installation of the kit. If full calibration is required,
arrangements regarding the level of calibration must be made between the end user and
the calibration provider.
3. This option is licensed for one instrument model number/serial number combination.
The license key will only install on the designated instrument.

Installation Note E4440-90613 5
Switchable Microwave Preselector Bypass Installation Kit
Contents
Quantity Description Agilent Part
Number
1 Installation Note This note
1 Option Upgrade Entitlement Certificate 5964-5141
1 User's Guide, Volume 1 ---
1 Specifications Guide ---
1 3 dB Attenuator 0955-0246
1 Preselector Bypass Mixer 1NB7-8539
1 Mixer Bias Board E4440-60254
1 Option Driver Assembly E4440-60459
1 SW 3, Switch coax N1810-60052
1 SW 5, Switch 50 GHz 87222-60015
1 Bracket, mixer E4440-00062
1 Bracket, coax Switch E4440-00076
1 Bracket, switch E4440-00063
1 W89, Cable, coax, Switch SW3 bottom port to
RHYTHM/SBTX
E4440-60373
1 W90, Cable, flat flex, Preselector Bypass Mixer to Mixer
Bias Board
8150-5698
1 W92, Cable, Ribbon, Option Driver Assembly J8 to SW5 E4440-60455
1 W93, Cable, coax, Preselector Bypass Mixer to Switch 3
Coax Switch top port
E4440-60298
1 W94, Cable, coax, Coax Switch SW3 center connector to
3RD Converter
E4440-60373
1 W95, Cable, ribbon, Option Driver Assembly J7 to Mixer
Bias Board (opt 123)
E4440-60397
1 W96, Cable, ribbon, Driver board J9 to Coax switch E4440-60427
1 W98, Cable, semi-rigid, Preselector Bypass Mixer LO IN to
W46 / 3 dB attenuator
E4446-20074
1 W99, Cable, semi-rigid, Preselector Bypass Mixer to Switch
SW5 Port 4
E4446-20318
1 W100, Cable, semi-rigid, Switch SW5 port 1 from
attenuator. (For instruments that do not have opt 110)
E4446-20071

6Installation Note E4440-90613
Switchable Microwave Preselector Bypass Installation Kit
1 W101, Cable, semi-rigid, Switch SW4 port 4 to Switch SW5
port 1 (For instruments that have Opt 110)
E4446-20081
1 W105, Cable, semi-rigid, Switch SW5 port 2 to W34 cable
that goes to A10 RYTHM/SBTX
E4446-20080
1 W46, Cable semi-rigid, A12 FELOMA to W98 / 3 dB
attenuator
E4440-20035
1 Thermal Pad N1996-40018
12 Screw, M3 X 0.5 8 MM-LG 0515-0372
2 Screw, M3 X 0.5 18 MM-LG 0515-0666
2 Screw, M3.5 X 0.6 8 MM-LG 0515-0458
3 Screw, M2.5 X 0.45, 6 MM-LG 0515-1934
2 Screw, M3 X 0.5, 6 MM-LG 0515-0430
1 Clamp, cable, PVC 1400-0611
2 SMA Hole Plug 6960-0076
Quantity Description Agilent Part
Number

Installation Note E4440-90613 7
Switchable Microwave Preselector Bypass Installation Kit
Tools Required
❏T-8 Torx driver
❏T-10 Torx driv er
❏T-20 Torx driv er
❏9/16-inch open end wrench
❏9/16-inch nut driver
❏tweezers
❏1/4-inch deep socket driver (for instruments with Option AYZ
❏Calibration software. Latest software information and downloads available at
http://www.agilent.com/find/calibrationsoftware
❏Test equipment supported by the calibration software.
❏PSA Series Spectrum Analyzer and Service Guide. This manual is available as part of
the E4446AU, E4447AU, or E4448AU Option OBW kits.
❏Microsoft®Windows®based personnel computer using LAN connection and
CD-ROM drive.
❏GPIB Interface. Agilent 82350B or 82357B. National Instruments PCI-GPIB or
GPIB-USB-HS
❏Windows 2000®(Service Pack 4), Windows XP®(Service Pack 2)
❏Crossover cable if PC or analyzer is not connected to network. Use a CAT, RJ45 cable
with cross pinning, Agilent p/n 8121-0545
❏Firmware A.0 9.10 or later. Download the latest revision form
http://www.agilent.com/find/psa_firmware, or order the Firmware Update kit.
Depending on your model number, the firmware update kit is ordered as: Order
E444xAU (Qty.1) Option UE2 (Qty. 1), where the “x” is the last digit of the model
number. For example: E4440AU option UE2.
Microsoft®, Windows®, and Windows XP®are US registered trademarks of Microsoft Corporation.

8Installation Note E4440-90613
Installation Procedure
Installation Procedure
For assistance at any time during this procedure, get in touch with your nearest Agilent
Technologies Sales and Service Office. To find your local Agilent office access the
following URL:
http://www.agilent.com/find/assist
Preliminary Hardware Verification
1. Check for the presence of Option 110, Preamplifier by pressing System, More, Show
System, and look at the option list.
• If Option 110 is present follow the instructions in this installation note in the
section named “Installing Option 123 with Option 110”.
• If Option 110 is not present then follow the instructions in this installation note in
the section named “Installing Option 123 without Option 110”.
2. Check for the presence of Option AYZ, External Mixing, by pressing System, More,
Show System, and look at the option list.
• If Option AYZ is present it must be uninstalled before Option 123 can be installed.
a. Delete Option AYZ License by pressing System, More, More, Licensing, Option.
Use the front panel numerical key pad to enter the option designator AYZ and
press the Enter key. Press Delete Option.
b. Check that Option AYZ has been removed by pressing System, More, Show
System, and looking at the option list.
c. Follow the instructions in this installation note in the section named
“Uninstalling Option AYZ” to remove the Option AYZ hardware.
• If Option AYZ is not present, then skip the section named “Uninstalling Option
AYZ”.
Before you begin the kit installation:
The instrument should be fully functional and pass all of the power on align tests. If an
alignment test fails, either note the failure and go on with the kit installation or repair
the problem now. Since the following installation involves removing and replacing cables
and removing and reinstalling major assemblies, you must be aware of the instrument
status before you begin the kit installation.

Installation Note E4440-90613 9
Installation Procedure
Remove the Outer Case
CAUTION 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.
1. Disconnect the instrument from ac power.
2. Refer to Figure 1. Remove the two handles on the sides of the instrument as shown.
Use the T-20 driver to loosen the screws that attach each handle (1). Remove the
handles.
3. Remove the four bottom feet (2). Lift up on the tabs on the feet, and slide the feet in
the direction indicated by the arrows.
4. Remove the four screws (3) that hold the rear feet (4) in place.
5. Pull the instrument cover (5) off toward the rear of the instrument.
Figure 1 Instrument Outer Case Removal

10 Installation Note E4440-90613
Installation Procedure
Remove the Top Brace
1. Refer to Figure 2. Use the T-10 driver to remove the top screws (3) (one screw is
under the security label), and the side screws (2) attaching the top brace (1) to the
deck.
2. Remove the top brace from the deck.
Figure 2 Top Brace Removal

Installation Note E4440-90613 11
Installation Procedure
Uninstalling Option AYZ
1. Refer to Figure 3. Locate and disconnect semi-rigid cable W45 from W46. Remove
W46 from the FELOMA and discard W46 since it is no longer needed.
Figure 3 W46 Cable Location
2. Remove the front frame as described in the instructions in this installation note
under the section called “Drop the Front Frame”.
3. Refer to Figure 4. Remove cable W45 from the front panel 1st LO Out. Discard this
cable.

12 Installation Note E4440-90613
Installation Procedure
Figure 4 W45 Cable Location at Front Panel
4. Locate and remove cable W44 (IF Input on the front panel to J3 on the 3rd Converter
Assembly). Discard this cable.
5. Locate the two SMA Hole Plugs (6960-0076) from the kit.
6. Remove the 1st LO Out and IF Input Front Panel SMA Connectors with a ¼ inch
deep socket. Ensure you do not scratch the front panel. Discard the SMA connectors
and replace them with the SMA Hole Plugs.

Installation Note E4440-90613 13
Installation Procedure
Drop the Front Frame
1. Refer to Figure 5. Using the T-10 driver, remove the 7 screws
(1) that attach the front frame assembly (2) to the deck.
2. Pull the front frame off of the deck until it is disengaged from the disc drive.
3. At this point, the front frame can be placed flat on the bench for service while still
attached to the instrument.
Figure 5 Front Frame Assembly Removal

14 Installation Note E4440-90613
Installation Procedure
Installing Option 123 with Option 110
1. Locate the Coaxial Switch SW3 (N1810-60052) from the kit.
2. Locate the E4446-60373 gray flexible cable from the kit. This cable is reference
designator W94. Connect cable W94 to Coaxial Switch SW3 Port C. Torque to
10 in-lbs.
3. Locate the E4446-60298 gray flexible cable from the kit. This cable is reference
designator W93. Connect cable W93 to Coaxial Switch SW3 Port 2. Torque to
10 in-lbs.
4. Locate the E4446-60373 gray flexible cable from the kit. This cable is reference
designator W89. Connect cable W89 to Coaxial Switch SW3 Port 1. Torque to
10 in-lbs.
5. Locate the Coaxial Switch Bracket (E4440-00076) from the kit. Refer to Figure 6.
Install Coaxial Switch SW3 to the Bracket with two screws (0515-0666). Torque to
9in-lbs.
Figure 6 SW3 and Bracket
6. Locate the E4446-60427 Ribbon Cable from the kit. This cable is reference designator
W96. Connect cable W96 to Coaxial Switch SW3.
7. Refer to Figure 7. Install the Coaxial Switch Assembly (1) to the chassis with two
screws (0515-0430) (2) as shown. Torque to 9 in-lbs.

Installation Note E4440-90613 15
Installation Procedure
Figure 7 Coaxial Switch Assembly Installation
8. Refer to Figure 8. Remove the screw from the cable hold down rod on the mid web to
allow the “10” cable and other cables to be free.
9. In order to remove the RYTHM end of the cable, and replace the cable, several board
assemblies must be removed. Refer to Figure 8 and Figure 9. Please note the position
and routing of all cables. All of the flexible coax cables are color coded, but the ribbon
cables are not.

16 Installation Note E4440-90613
Installation Procedure
Figure 8 Assembly and Cable Location
Figure 9 Options 110 and 123 Rear View

Installation Note E4440-90613 17
Installation Procedure
10.Remove the Front End Driver being careful to avoid damaging the ribbon cables.
11.Remove the Synthesizer assembly after removing the rigid cable and the two
retaining screws.
12.Remove the Reference assembly.
13.Locate cable W17, (RYTHM highband output to 3rd Converter J1) and take note of
the cable routing. Refer to Figure 10. Using needle nose pliers, carefully grab the
body of the cable SMB connector and gently rock the SMB connector free of the
RYTHM. Discard this cable.
Figure 10 W17 Location

18 Installation Note E4440-90613
Installation Procedure
14.Locate cable W89, one end is already connected to Switch SW3 bottom port. Refer to
Figure 11. Route the cable next to the RF section sheet metal and directly to the
RYTHM as shown. Carefully align the SMB connector end of the cable with the
RYTHM connector by looking through the hole in the chassis. Press the SMB
connector on.
Figure 11 W89 Location
15.Reinstall the A13 Front End Driver, Synthesizer Assembly and the Reference
Assembly. Assure all cables are routed correctly.
NOTE The shrink-wrapped ferrite beads on the cable can be moved slightly to
aid cable routing.

Installation Note E4440-90613 19
Installation Procedure
16.Refer to Figure 12. Locate and remove cable W107 (Switch SW4 Port 4 to W34 on the
RYTHM/SBTX). Discard this cable, since it will be replaced by another cable.
Figure 12 Option 110 Cable Location
17.Locate and remove cable W102 (Switch SW4 Port 3 to Preamplifier). This cable will
be replaced later. It is removed to allow the Switch Assembly to be removed.
18.Locate and remove cable W103 (A15 Attenuator to Switch SW4 Port 1). This cable
will be replaced later. It is removed to allow the Switch Assembly to be removed.
19.Locate and remove cable W104 (Preamplifier Output to Switch SW4 Port 3). This
cable will be replaced later. It is removed to allow the Switch Assembly to be removed.
20.Locate and remove ribbon cable W91 (Option Driver Assembly to Switch SW4). This
cable will be replaced later. It is removed to allow the Switch Assembly to be removed.
21.Remove the three screws (2) that attach the Switch Bracket to the Mixer Bracket. Lift
the Switch Bracket Assembly from the instrument.
22.Locate Switch SW5 (87222-60015) from the kit. Install Switch SW5 to the Bracket
below Switch SW4 with three screws (0515-1934) Torque to 6 in-lbs with a Torx T-8
driver.
23.Re-Install Switch Assembly to Mixer Bracket with three screws (0515-0372) Leave
screws loose to allow cables to be installed.

20 Installation Note E4440-90613
Installation Procedure
24.Locate Preselector Bypass Mixer (1NB7-8539) and E4440-20318 semi-rigid cable
from the kit. This cable is reference designator W99. Refer to Figure 13. Connect W99
to the Preselector Bypass Mixer (1). Leave loose.
Figure 13 Preselector Bypass Switch and W99 Installation
25.Connect cable W99 to Switch SW5 port 4 as shown. Leave loose.
26.Install Preselector Bypass Mixer to the chassis with three screws (2) (0515-0372).
Torque to 9 in-lbs.
27.Go back and torque both ends of Cable W99 to 10 in-lbs.
28.Go back and torque the three screws on the Switch Assembly to 9 in-lbs as shown.
29.Locate E4440-60455, Ribbon Cable. This cable is reference designator W92. Connect
Ribbon Cable to Switch SW5.
30.Reconnect ribbon cable W91 (Option Driver Assembly J3 to Switch SW4).
31.Locate and remove cable W33 (Attenuator B to W34 on the RYTHM/SBTX). Discard
this cable, since it will be replaced by another cable. Leave W34 on the RYTHM/SBTX
in place. Refer to Figure 14.