Keysight Technologies N9030B Installation and operation manual
Option HL2 Microwave Preselector Bypass
(MPB) and Low Noise Path (LNP)
for mm-Wave Instruments
Keysight Technologies
N9030B PXA Signal Analyzer
Installation Note
Notices
© Copyright 2016 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
N9030-90084
Edition
Edition 1, February 2016
Printed in USA/Malaysia
Published by:
Keysight Technologies, Inc.
1400 Fountaingrove Parkway
Santa Rosa, CA 95403
Installation Note N9030-90084 3
Option HL2 Microwave Preselector Bypass (MPB) and Low Noise Path (LNP) Retrofit Kit
Option HL2 Microwave Preselector Bypass (MPB) and
Low Noise Path (LNP) Retrofit Kit
Introduction
This installation note explains how to install the hardware, and provides guidelines for adjustment
and verification for Option MPB, Microwave Preselector Bypass, and Option LNP, Low Noise Path.
Please note that the Option HL2 kit designator is only an ordering number.
Option MPB provides a mechanical switch and associated hardware that bypass the A12 YTF (YIG
Tuned Filter). The YTF limits the bandwidth of the input signal and also this filter can drift causing
slight amplitude errors.
Option LNP provides a mechanical switch and associated hardware to bypass the A11 Low Band
Assembly when the instrument is tuned to frequencies above 3.6 GHz (High Band path). The A11
Low Band assembly contributes loss to the input signal path and reducing this loss improves the
Display Average Noise Level of the instrument. SHI performance increases also.
Products Affected: N9030B PXA, Option 544 and 550
Serial Numbers: All
To Be Performed By: (X) Keysight Service Center
(X) Personnel Qualified by Keysight
( ) Customer
Estimated Installation Time:
Estimated Adjustment Time:
Estimated Verification Time:
2.5 Hours
8.0 Hours
5.0 Hours
The instrument must be readjusted and the performance tested to assure the instrument meets
specifications following the hardware installation. The X- Series Performance Verification and
Adjustment Software must be used. All adjustments are automated. This software is included in
the N7814A performance test & adjustment software package, revision E.16.00 or greater.
The option is licensed for one instrument model number/serial number combination. The license
file that is downloaded from the web will only install on the designated instrument.
4Installation Note N9030-90084
Option HL2 Microwave Preselector Bypass (MPB) and Low Noise Path (LNP) Retrofit Kit
Installation Kit Parts List
Quantity Description Keysight Part Number
1 Installation Note This note
1 Option Upgrade Entitlement Certificate 5964-5178
1 Transfer Switch (SW4) 87222-60031
1 Transfer Switch, (top switch) (SW3) 87222-60029
1 Bracket, Switch N9020-00021
1 Cable, Wire Harness, Preselector Bypass Control E4410-60159
1 Cable, Coax, YTF - Bottom Switch port 3 N9020-20129
1 Cable, Coax, Bottom Switch Port 2 to Front End Assembly J 9 N9020-20130
1 Cable, Coax, Bottom Switch port 4 to YTF N9020-20128
1 Cable, Coax, Bottom Switch Port 1 to Top Switch Port 2 N9020-20151
1 Cable, Coax, Attenuator B - Top Switch Port 1 N9020-20171
1 Cable, Coax, Top Switch Port 4 to Low Band Switch Assembly J1 N9020-20125
1 Cable, Coax, Low Band Switch Assembly J3 to Top Switch Port 3 N9020-20127
1 Cable, Ribbon, Top Switch Control to Front End Controller Assembly J802
connector
N9020-60177
6 Screw M2.5 x 0.45 (6 mm long) Pan Head 0515-1934
14 Screw M3 x 0.5 (6 mm long) Flathead 0515-1946
2 Screw M3 x 0.5 (8 mm long) Flathead 0515-2032
2 Screw M3 x 0.5 (8 mm long) Pan Head 0515-0372
1 Connector Body (used on wire harness) 1252-1873
Installation Note N9030-90084 5
Option HL2 Microwave Preselector Bypass (MPB) and Low Noise Path (LNP) Retrofit Kit
Tools Required
—T-8TORXDriver
— T-10 TORX Driver
— T-20 TORX Driver
— 5/16-inch torque wrench
— Keysight Calibration and Adjustment Software, N7814A, revision E.16.00 or greater
— Test equipment and computer supported by the X- Series Performance Tests and Adjustment
Software
— PXA Signal Analyzer Service Guide. This manual is available online at the following URL:
www.keysight.com/find/N9030B_service_guide
— Microsoft Windows based personnel computer with internet access and USB port
— USB storage device with > 2 GB free memory
Initial Instrument Functionality Check
Power on the instrument and allow the instrument to boot up. Run an alignment and display the
measurement screen. (The instrument will probably display a spectrum analyzer screen and you will
see the instrument sweeping.)
There should be no alignment failures. If there are failures, investigate and fix the problem before
continuing.
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.
6Installation Note N9030-90084
Option HL2 Microwave Preselector Bypass (MPB) and Low Noise Path (LNP) Retrofit Kit
Installation Procedure
Remove the instrument outer case, top brace, front panel, and right side chassis (RF side
bracket)
See the Instrument Outer Case, Top Brace, front frame, and RF area removal procedures in the
Service Guide’s “Assembly Replacement Procedures” chapter. If Option EXM External Mixing is
present, disconnect the semi-rigid cable connections behind the LO/IF input before removing the
front frame.
Installing the retrofit kit
Removing Cables
1. Refer to Figure 1. Locate Attenuator B (2) on the right side of the instrument, and remove
cable W6 from between Attenuator B and the Low Band Switch Assembly (3). This cable will
not be reused.
Figure 1 RF Section
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.
Installation Note N9030-90084 7
Option HL2 Microwave Preselector Bypass (MPB) and Low Noise Path (LNP) Retrofit Kit
2. Locate the YTF (4) and remove W56 from between the YTF and the Low Band Switch
Assembly (3), and remove W57 between the YTF and the Front End Assembly at J9. These
cables will not be reused.
3. Disconnect the W7 ribbon cable from the Low Band Switch Assembly.
Installing Switches and Control Cables
1. Refer to Figure 2. Locate the two switches and the switch bracket in the kit.
Figure 2 Bracket Mount to Switches
2. Attach the switches (2) and (4) to the bracket with the 0515-1934 screws. Note that the
switch with the wire pigtail (4) mounts below the switch without the pigtail (2).
Torque to 6 inch-lbs.
8Installation Note N9030-90084
Option HL2 Microwave Preselector Bypass (MPB) and Low Noise Path (LNP) Retrofit Kit
3. Refer to Figure 3. Locate the switch wire harness (1) and the empty connector body
1252-1873 (2). Plug the empty connector body into the switch wire harness connector that
has the orange, black, green wires. Plug the wire harness that has the yellow, black, green
wires into the bottom switch harness as shown
Figure 3 Switch Wiring
4. Locate the ribbon cable (3) in the kit and install it onto the top switch. Note the cable must
have a fold in it as shown. Ribbon cable (4) is the existing W7 cable removed from the Low
Band Switch Assembly earlier. Notice how this cable will be routed between the switches. The
other end of this cable should still be attached to the Front End Control Assembly. Notice the
fold in the ribbon cable.
Installation Note N9030-90084 9
Option HL2 Microwave Preselector Bypass (MPB) and Low Noise Path (LNP) Retrofit Kit
5. Refer to Figure 4. Position the switch/bracket assembly into the frame. Route W7 ribbon cable
between the switches. Notice the position of the other ribbon cable W55 and wire harness
W12. Secure the switch assembly with two 0515-2032 screws (1). Torque to 9 inch-lbs. Insert
W7 ribbon cable into Low Band Switch header. Ensure the locking tabs are engaged.
Figure 4 Cable Routing
10 Installation Note N9030-90084
Option HL2 Microwave Preselector Bypass (MPB) and Low Noise Path (LNP) Retrofit Kit
Installing Semi-Rigid Cables
1. Refer to Figure 5. Locate W52 N9020-20125 (1), and W54 N9020-20127 (2), in the kit and
install them as shown. Torque cables to 10 inch-lbs.
Figure 5 W52 and W54 Cable Installation
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