Agilent Technologies E4411-60019 Installation and operation manual

Part Number E4411-90045 Supersedes October 1998
Printed in USA May 2000
Installation Note
Agilent Technologies ESA Spectrum Analyzer
Gasket Upgrade Kit
Kit Number E4411-60019

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
shallnotbeliableforerrorscontainedhereinorforincidentalorconsequentialdamagesinconnectionwith
the furnishing, performance, or use of this material.
© Copyright 1998, 1999, 2000 Agilent Technologies, Inc.

Installation Note E4411-90045 3
E4411-60019
Introduction
This kit is intended for customers whose ESA spectrum analyzers have accumulated dust particles or
cloudiness on the lens. It provides gaskets for placement around the lens to reduce further
contamination. Also, a new lens/keypad assembly is required for this upgrade and must be ordered
separately.
Installation Kit Parts List
Table 1 Parts Kit E4411-60019 Contents
NOTE This kit does not include a lens/keypad assembly. Because of variations in these
assemblies, it has been left up to the person performing the upgrade to order the
appropriate lens/keypad assembly for the instrument. Refer to the instrument
service guide for the applicable part number.
Product Affected: . . . . . . . . . . . . . . . . . . . . . . . . ESA Spectrum Analyzers
Serial Numbers: . . . . . . . . . . . . . . . . . . . . . . . . All
Options: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . All
To Be Performed By: . . . . . . . . . . . . . . . . . . . . . (X) Agilent Technologies Service Center
( ) Personnel Qualified by Agilent Technologies
( ) Customer
Estimated Installation Time: . . . . . . . . . . . . . . 0.5 hour
Estimated Verification Time: . . . . . . . . . . . . . . 0.5 hour
Item Quantity Description Part Number
1 2 Long Gaskets 6.3 in. 8160–0959
2 2 Short Gaskets 4.4 in. 8160–0960
3 1 Installation Note E4411-90045

4 Installation Note E4411-90045
Tools Required
Figure 1 TORX Tool
WARNING Opening covers or removing parts is likely to expose dangerous voltages.
Disconnect the product from all voltage sources before opening covers.
WARNING The spectrum analyzer contains potentially hazardous voltages. Failure
to heed the safety precautions can result in severe or fatal 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.
Description Part Number
TORX Hand Driver — Size T10 8710-1623
TORX Hand Driver — Size T15 8710-1622

Installation Note E4411-90045 5
Procedure
Removing the Outer Case
1. Disconnect the spectrum analyzer from ac power.
2. Carefully place the analyzer on the work surface with the front frame facing down.
Refer to Figure 2 for steps 3 and 4.
3. Remove the four screws (1) that hold the rear frame (2) and outer case (4) in place.
4. Pull the instrument outer case and rear frame off toward the rear of the instrument.
CAUTION The rear EMI contact grid (3) that clips onto the rear panel can come loose. Note
the correct position to reattach the gasket.
Figure 2 Outer Case, Rear Frame Removal

6 Installation Note E4411-90045
Removing the Front Frame
The front frame assembly can be extended from the instrument without detaching any connections.
Refer to Figure 3 for steps 1 through 3.
1. With the instrument still on its face, remove the two screws (5) on the bottom side of the instrument
that secure the front frame to the RF assembly.
2. Place the instrument with the top side facing up and remove the remaining three screws (1) that
secure the front frame to the inner shield. Remove the two screws (2) that secure the front frame
subpanel to the chassis.
3. Slide the front frame (4) forward until it catches on the tabs (3) on the sides of the chassis.
Figure 3 Front Frame Assembly Removal

Installation Note E4411-90045 7
Refer to Figure 4 for steps 4 through 6.
4. Disconnect the ribbon cable (1) from the front panel interface board.
5. Carefully pull the sides of the front frame subpanel away from the chassis and over the tabs.
6. Slide the front frame forward to disengage from the chassis assembly.
Figure 4 Front Frame Ribbon Cable

8 Installation Note E4411-90045
Removing the Display
CAUTION The display and lens surfaces are very easily scratched. Avoid touching them with
your bare hands or other objects.
1. Place the front frame assembly face down on the work surface.
Refer to Figure 5 for steps 2 through 5.
2. Disconnect the two-wire backlight cable (1) from the front panel interface board.
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 will brake the retaining clips, and if broken,
board replacement will be necessary.
3. Disconnect the W3 display ribbon cable (2) from the front panel interface board. The ribbon cable
connector has a lock that needs to be slid out before removing the ribbon cable.
4. Remove the four screws (3) securing the display bracket (4) to the front frame.
5. Carefully lift the display and bracket out of the front frame assembly and put it in a safe place.
Figure 5 Display Removal

Installation Note E4411-90045 9
Installing the EMI Gaskets
1. Refer to Figure 6. Use a pair of needle-nose pliers to remove the metal fingers located in three
places on the front frame around the lens opening.
NOTE The fingers are held in place with adhesive and some force may be required to
remove them.
Figure 6 Metal Finger Location

10 Installation Note E4411-90045
Refer to Figure 7 for steps 2 through 6.
2. Locate the two long (8160–0959) and two short (8160–0960) EMI foam gaskets.
3. Install one of the short gaskets, along the left or right edge of the opening, approximately 1 mm
from the edge, as shown in the figure. Use the following steps:
a. Remove the protective paper backing from the gasket strip, to expose the self-stick adhesive.
b. On the inside of the front frame, center and align the gasket along the edge of the opening. (The
short gaskets should have approximately equal amounts of overlap at the top and bottom of the
opening.)
c. Firmly press along the length of the gasket to adhere it to the frame.
4. Repeat steps 3a through 3c with the remaining short gasket along the opposite edge of the opening.
5. Repeat steps 3a through 3c to install one of the long gaskets, along the top or bottom edge of the
opening as shown in the figure.
NOTE Make sure that the long gaskets touch the ends of the short gaskets. This is
necessary to create an airtight seal around the inner plastic lens and the LCD
display. The seal minimizes particulate contamination that may cloud the lens.
6. Repeat steps 3a through 3c with the remaining long gasket along the opposite edge of the opening.
NOTE The long gaskets will either partially or completely cover holes in the subpanel
through which rubber front panel alignment posts protrude. This is normal and
will not adversely affect the function of the gasket.
Figure 7 Gasket Placement