Agilent Technologies ESA-E E4407B Installation and operation manual

Installation Note
Part Number E4407-90043 Supersedes: E4407-90034
Printed in USA July 2005
Agilent Technologies
E4407B Spectrum Analyzer
External Mixing (Option AYZ)
Retrofit Kit

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.
Microsoft®is a U.S. registered trademark of Microsoft Corp.
© Copyright 2002 - 2005 Agilent Technologies, Inc.

Installation Note E4407-90043 3
Introduction
This procedure can be used to retrofit External Mixing (Option AYZ) into an E4407B spectrum analyzer.
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 is required to perform the required adjustments, and can be used to automate the performance
verification testing. Information on how to obtain this software can be found at:
www.agilent.com/find/calibrationsoftware
While Agilent 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.
Products Affected: . . . . . . . . . . . . . . . . . . . . . . . . . . E4407B
Serial Numbers:. . . . . . . . . . . . . . . . . . . . . . . . . . . . Any
To Be Performed By: . . . . . . . . . . . . . . . . . . . . . . . . (X) Agilent Technologies Service Center
(X) Personnel Qualified by Agilent
(Note: must have necessary test equipment and
ESA Calibration Software.)
( ) Customer
Estimated Installation Time: . . . . . . . . . . . . . . . . . 2.0 Hours
Estimated Verification Time: . . . . . . . . . . . . . . . . . 3.0 Hours
Additional Recommended Task: . . . . . . . . . . . . . . . Agilent recommends a full calibration be performed to
verify instrument specifications

Installation Note E4407-90043
4
Installation Kit Parts Lists
Tools Required
• T-10 TORX screwdriver
• T-15 TORX screwdriver
• Flat-blade screwdriver
• Sharp knife or razor blade
• Synthesized Sweeper
• Power Meter, Dual-Channel
• RF Power Sensor (2 required)
• Microwave Power Sensor
• APC 3.5 (m) Cable Assembly
Torque Settings
To avoid potential RFI leakage and prevent connector damage, tighten to the following torque limits:
Item Description Item Number
1 Adapter, SMA (f) to SMA (f) (Qty 2) 1250-1666
2 Cable Assembly, LOIS to Front Panel LO OUT E4404-20006
3 Cable Assembly, LOIS to Front Panel IF INPUT E4407-60008
4 O-Ring, 0.237 in. diameter (Qty 2) 0905-0790
5 Washer, Flat 0.255 in. ID (Qty 2) 3050-0420
6 Connector Label, Non-Opt UKB (A1MP21) E4407-80005
7 Connector Label, Opt UKB (A1MP21) E4407-80008
8 Option AYZ Installation Note this note
9 Option Upgrade Entitlement Certificate ---
10 LO Amp/IF Switch assembly E4404-60030
Item Torque
In-lb N-cm
SMA Connectors 8.5 95
3-mm, T-10 TORX screws 9 102
4-mm, T-15 TORX screws 21 236

Installation Note E4407-90043 5
Procedure
Verify A8A1 3 GHz RF Assembly Part Number
1. Turn on the analyzer and wait for the initial adjustments to complete.
2. Press System, More, Show Hdwr. This displays the Show Hardware screen, which lists the part number and
serial number of most of the installed board assemblies.
3. Locate the part number of the “50Ω3 GHz Input” assembly.
4. If the part number of the 50Ω3 GHz Input assembly is E440360002 or lower, the A8A1 3 GHz RF
assembly must be replaced. If the analyzer does not have the High Stability Frequency Reference,
Option 1D5, order E4403-60073. If the analyzer does have Option 1D5, order E4403-60074.
WARNING Before you disassemble the instrument, turn the power switch OFF and unplug the
instrument. Failure to unplug the instrument can result in personal injury.
CAUTION 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 E4407-90043
6
Dress Cover Removal
1. Referring to Figure 1, disconnect the analyzer from ac power (1).
2. Remove any adapters or cables (2) connected to the front frame.
3. Carefully place the analyzer on the work surface with the front frame (3) facing down.
4. Position the handle (4) as shown.
5. Remove the four screws (5) that hold the rear frame and dress cover in place.
6. Remove the rear frame (6).
7. Pull the dress cover (7) off towards the rear of the analyzer.
Figure 1 Dress Cover and Rear Frame Removal

Installation Note E4407-90043 7
Chassis Cover Removal
1. Lay the analyzer flat as shown in Figure 2.
2. Remove the screws (3) attaching the chassis cover to the chassis. Note that the number of screws
attaching the chassis cover may vary with option mixes.
3. Remove the chassis cover (1) from the chassis.
Figure 2 Chassis Cover Removal

Installation Note E4407-90043
8
A1 Front Frame Assembly
CAUTION Use ESD precautions when performing this replacement procedure.
Extension
The A1 front frame assembly can be extended from the instrument without detaching any connections.
1. Refer to Figure 3. Remove the two screws (1), on the bottom side of the instrument, that secure the front
frame to the RF assembly.
Figure 3 A1 Front Frame Assembly Removal
2. Place the instrument with the top side facing up and remove the remaining two screws (2) that secure the
front frame subpanel to the chassis.
3. Slide the front frame forward until it catches on the tabs on the sides of the chassis.

Installation Note E4407-90043 9
Removal
To completely remove the A1 front frame assembly, complete the “Extension” procedure, then continue with
the following steps:
1. Refer to Figure 4. Disconnect the ribbon cable (1) from the A1A1 front panel interface board. Analyzers
with Option B7B will have a second ribbon cable connecting to A1A1. Disconnect the second ribbon cable if
present.
Figure 4 Front Frame Ribbon Cable
2. Carefully pull the sides of the front frame subpanel away from the chassis and over the tabs on the
chassis.
3. Slide the front frame forward to disengage from the chassis assembly.

Installation Note E4407-90043
10
Install A8A4 LOIS Assembly (provided in this kit)
1. Refer to Figure 5. Locate the A8A4 LO/IF Amplifier/Switch (LOIS) in the microcircuit area.
Figure 5 Removing A8A4 LOIS Assembly
2. Disconnect any cables and loads (1) from the LOIS assembly.
3. Remove the three screws (2) and remove the LOIS assembly.
4. Install the LOIS assembly supplied in this kit and secure in place with the three screws.
Tighten to 9 inch-pounds.
Caution: Use care not to pinch any cables during reassembly.
5. Reconnect the cables and loads to the correct locations. Tighten the SMA connectors to 10 inch-pounds.
6. Record the LO Dac values from the label affixed to the front of the A8A4 LOIS assembly for future use
during the LO Power adjustment.
Band = 1 Dac Value = _______________
Band = 2 Dac Value = _______________
Band = 3 Dac Value = _______________
Band = 4 Dac Value = _______________
TG LO Dac Value = _______________
EXT LO Dac Value = _______________

Installation Note E4407-90043 11
A1A1 Front Panel Interface Board Removal
1. Refer to Figure 6. Remove the disk drive door (1).
2. Remove the RPG knob (2).
3. Remove the volume knob (3).
TIP You may need to exert considerable force in order to remove the RPG knob. It may be necessary
to pry it off using a screwdriver as shown in Figure 6.
Figure 6 Removing the Front Frame Knobs

Installation Note E4407-90043
12
4. Refer to Figure 7. Disconnect the two 2-wire backlight cables (1) from the front panel interface inverter
board.
5. Disconnect W3 ribbon cable (2) from the front panel interface board.
Figure 7 Disconnecting the Front Frame Wiring Connections
CAUTION The W3 display ribbon cable connector (2) is delicate. With a small screwdriver or similar tool,
gently push the lock tabs out from the back of the connector. Excessive force on the locking tab
can break the retaining clips, and if broken, board replacement will be necessary.

Installation Note E4407-90043 13
6. Refer to Figure 8. Remove the four screws (10) that secure the A1A1 front panel interface board (11) to
the front frame.
7. Remove the front panel interface board from the front frame assembly.
Removal
NOTE There is a water-seal gasket placed around the volume control shaft that will need to be
repositioned during the replacement procedure.
Figure 8 Front Frame Assembly Parts

Installation Note E4407-90043
14
Attach Connector Label and Connector Covers to Front Frame
1. Locate the appropriate connector label in the kit. The connector label has holes to accommodate the
various front panel connectors and the volume control. The frequency range of the analyzer appears near
the hole next to the INPUT connector. This kit contains two connector labels identifying different
frequency ranges for analyzers with and without option UKB. Choose the connector label that is
appropriate for the analyzer being retrofitted.
2. If the analyzer does not have a tracking generator, remove the hole plug for the RF OUT connector.
3. Remove the two connector covers from the front panel by pinching them from the sides and removing them
(4) through the front of the front frame assembly.
Figure 9 Connector Covers

Installation Note E4407-90043 15
Figure 10 Connector Label Installation
4. Peel off the old connector label loosening any residual adhesive with a sharp knife or razor blade as you go.
5. Before installing the new connector label, make sure the surface is free of any adhesive residue left from
the old label. Failure to do so may result in an uneven (lumpy) appearance of the new label.
6. Peel the backing (2) off the new label, as shown in Figure 10.
7. Align and install the label by placing a finger in the RF OUT and VOLUME holes (3). Observe the
alignment of the INPUT and PROBE POWER holes.
Refer to Figure 9.
TIP It may be helpful to trim off about 2 mm of the tabs (5) on the connector covers prior to
reinstalling them. This will help in aligning the covers.
8. Reinstall the two connector covers from the front panel by pinching them from the sides and installing
them through the front of the assembly.
9. Align the connector covers so they open downward.
10.Reinstall the hole plug that was removed if your analyzer does not have a tracking generator.

Installation Note E4407-90043
16
Add Cables and Connectors for External Mixing
Figure 11 Installing SMA to SMA Connectors
1. Locate the SMA to SMA connectors, flat washer, and o-rings in the kit. Each SMA to SMA connector
includes a hex nut. Remove this nut from the connector.
2. Refer to Figure 11. Install the SMA to SMA connectors (1) from the backside of the “mid section” (6).
Secure each connector with an o-ring (2), flat washer (3), and the nut (7) that was included with the
connector as shown in the figure. Torque the nut to 21 inch-pounds.
3. Connect one end of the flexible coax cable, W39 (4) included in the kit to the back of the SMA to SMA
connector nearest the BNC AMPTD REF OUT connector. Torque the connector to 10 inch-pounds.
4. Route the other end of W39 (4) through the hole (5) in the midsection as shown in Figure 11.

Installation Note E4407-90043 17
Figure 12 Connecting the Semi-Rigid Coax Cable
1. Refer to Figure 12. Remove the 50 Ohm termination connected to A8A4J4 (1). The termination will later
be connected to the 1st LO OUTPUT connector on the front panel.
2. Connect the semi-rigid coax cable, W38 (2) between A8A4J4 (1) and the remaining SMA to SMA
connector (3) on the midsection. Ensure that W38 stays parallel to W23 (4). Torque the connections to 10
inch-pounds.
3. Connect the free end of W39 (5) to A8A4J6 (6).

Installation Note E4407-90043
18
Replace A1A1 Front Panel Interface Board
1. Refer to Figure 8. Place the front panel interface board (11) in the correct position in the front frame
assembly. Make sure the water seal is in place around the volume control shaft.
2. Replace the four screws that secure the board to the front frame. Tighten them to 9 inch-pounds.
3. Refer to Figure 7. Connect the W3 display ribbon cable (2) to the front panel interface board.
TIP An easy way to insert this delicate cable into the connector is to place your finger on the cable,
in the center of the LCD display, and gently slide the cable toward the connector until they
align. Then, providing guidance with the other hand as necessary, slide the cable until the end
slips into the connector.
Ensure the cable end is seated completely and is aligned straight within the connector body.
Continue to hold the cable in place with your finger, and with the other hand gently press the
locking tabs (5) into place.
If you experience display problems, check this connection.
4. Reconnect the two 2-wire backlight cables (1) to the inverter board, making sure that the cables are
dressed away from the openings for the control knobs.
5. Press the volume and RPG knobs onto their control shafts.

Installation Note E4407-90043 19
Replace Front Frame Assembly
1. Align the A1 front frame subpanel rails with the chassis as shown in Figure 13.
Figure 13 Front Frame Assembly Replacement
2. Refer to Figure 14. Connect the ribbon cable (1) to the front frame assembly. If Option B7B is installed,
there will be two ribbon cables to connect.

Installation Note E4407-90043
20
Figure 14 Front Frame Ribbon Cable
3. Carefully slide the front frame toward the chassis, assuring the ribbon cable(s) are not pinched between
assemblies, and the RF input connector lines up correctly with the opening in the front frame.
4. Refer to Figure 13. Replace the screws that secure the front frame to the chassis (2) and to the RF
assembly (1). Tighten them to 9 inch-pounds.
5. Connect the 50 ohm termination removed earlier to the 1st LO OUTPUT connector.