Agilent Technologies 8757D Installation and operation manual

Agilent Part Number: 08757-90195
Printed in USA June 2003
© Copyright 2003 Agilent Technologies, Inc. All rights reserved.
Installation Note
8757D/E CRT to LCD Upgrade Kit
Part Number 08757-60159

208757-90195
Notice
THE MATERIAL CONTAINED IN THIS DOCUMENT IS PROVIDED “AS IS,” AND IS SUBJECT
TO BEING CHANGED, WITHOUT NOTICE, IN FUTURE EDITIONS. FURTHER, TO THE
MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, AGILENT DISCLAIMS ALL
WARRANTIES, EITHER EXPRESS OR IMPLIED WITH REGARD TO THIS MANUAL AND ANY
INFORMATION CONTAINED HEREIN, INCLUDING BUT NOT LIMITED TO THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
AGILENT SHALL NOT BE LIABLE FOR ERRORS OR FOR INCIDENTAL
OR CONSEQUENTIAL DAMAGES IN CONNECTION WITH THE FURNISHING, USE, OR
PERFORMANCE OF THIS DOCUMENT OR ANY INFORMATION CONTAINED HEREIN.
SHOULD AGILENT AND THE USER HAVE A SEPARATE WRITTEN AGREEMENT WITH
WARRANTY TERMS COVERING THE MATERIAL IN THIS DOCUMENT THAT CONFLICT
WITH THESE TERMS, THE WARRANTY TERMS IN THE SEPARATE AGREEMENT WILL
CONTROL.
Getting Assistance from Agilent
By internet, phone, or fax, get assistance with all your test and measurement needs.
Online assistance: www.agilent.com/find/assist
United States
(tel) 1 800 452 4844
Latin America
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(fax) [phone]
Canada
(tel) 1 877 894 4414
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(tel) (preferred)
800 810 0189
(tel) (alternate)
10800 650 0021
(fax) 10800 650 0121

08757-90195 3
Description of CRT to LCD Upgrade Kit
This upgrade kit replaces the cathode ray tube (CRT) with a liquid crystal display (LCD).
About the Upgrade Kit
If you need assistance, contact Agilent Technologies. Refer to “Getting Assistance from
Agilent” on page 2 for a list of offices.
Products affected: . . . . . . . . . . . . . . . . . . . . . 8757D and all options
8757E and all options
Installation to be performed by: . . . . . . . . . . Agilent service center, personnel qualified by
Agilent, or customer
Estimated installation time: . . . . . . . . . . . . . 3 hours
Estimated verification time: . . . . . . . . . . . . . 20 minutes

408757-90195
Items Included in the Upgrade Kit
Table 1 lists the parts included in this upgrade kit, Agilent part number 08757-60159. Check
the contents of your kit against this list.
NOTE As you step through the removal portion of this procedure, discard all of
the old hardware. New hardware is provided in the upgrade kit.
Table 1 Upgrade Kit Contents (08757-60159)
Description Qty Part Number
Manual set (includes service and operating manual) 1 08757-90107
Installation note (this document) 1 08757-90195
Front sub-panel (sheet metal) 1 08757-00071
LCD shield 1 08757-00072
Switch guide 1 08757-40008
Main keypad rubber 1 08757-40017
Power supply cable 1 08757-60071
Display interface board 1 85101-60293
Keypad board 1 08757-60149
LCD assembly 1 08757-60151
Rear panel assembly 1 08757-60153
Front panel overlay Option 012 1 08757-80083
Front panel overlay 8757D Standard 1 08757-80084
Front panel overlay Option 001 1 08757-80085
Front panel overlay Option 002 1 08757-80086
ON/OFF overlay 1 08757-80098
Name plate (Agilent Technologies) 1 08757-80099
EPROM (U7) 1 08757-80103
EPROM (U29) 1 08757-80104
Hex nut (SMM3.0 6 SSHX) 10 0535-0031
Screw (SMM3.0 8 CWPNTX) 15 0515-0372
Screw (SMM3.0 10 CWPNTX) 12 0515-0374
Screw (SMM3.0 16 CWPNTX) 4 0515-0375

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Screw (SMM4.0 10 CWPNTX) 19 0515-0380
Screw (SMM3.0 6 CWPNTX) 10 0515-0430
Screw (SMM3.5 6 PCFLTX) 10 0515-1382
Screw (SMM5.0 10 PCFLTX) 4 0515-1384
Screw (SMM3.0 20 CWPNTX) 6 0515-1410
Screw (SMM4.0 7 PCFLTX) 12 0515-2086
Screw (SMM3.5 8 PCPNTX) 6 0515-1402
Cable clamp (rear frame) 1 1400-0017
Tie wrap 6 1400-0249
Actuator clamp (CLP CA.15DI.62W) 1 1400-0510
Switch guide spring 2 1460-1573
RPG assembly 1 1990-1525
FUSE (F5) (5A 250V) 1 2110-0010
Washer 4 2190-0016
Hex-nut 2 2950-0043
Grommet (CHANNEL NPR.047W) 1 4320-0002
Label (5 amp fuse) 1 9320-5885
RPG knob 1 01650-47401
Table 1 Upgrade Kit Contents (08757-60159)
Description Qty Part Number

608757-90195
Installation Procedure for the Upgrade Kit
The network analyzer must be in proper working condition prior to installing this option. Any
necessary repairs must be made before proceeding with this installation.
WARNING The servicing instructions are for use by qualified personnel only. To
avoid electrical shock, do not perform any servicing unless you are
qualified to do so.
Electrostatic Discharge Protection
Protection against electrostatic discharge (ESD) is essential while removing or connecting
cables or assemblies within the network analyzer.
Static electricity can build up on your body and can easily damage sensitive internal circuit
elements when discharged. Static discharges too small to be felt can cause permanent
damage. To prevent damage to the instrument:
•always wear a grounded wrist strap having a 1 MΩresistor in series with it when handling
components and assemblies.
•always use a grounded, conductive table mat while working on the instrument.
•always wear a heel strap when working in an area with a conductive floor. If you are
uncertain about the conductivity of your floor, wear a heel strap.
Figure 1-1 shows a typical ESD protection setup using a grounded mat and wrist strap. Refer
to Table 2, “Required Equipment and Tools” on page 8 for part numbers.
Figure 1-1 ESD Protection Setup

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Overview of the Installation Procedure
1. Remove the outside covers.
2. Remove the inside covers.
3. Remove the front panel.
4. Remove the CRT.
5. Remove the rear panel.
6. Remove the power supply board.
7. Remove the front frame.
8. Remove the CRT shield.
9. Install the LCD shield.
10. Install the front frame.
11. Install the power supply board.
12. Install the rear panel assembly.
13. Install the keypad board.
14. Install the keypad assembly.
15. Install the LCD assembly.
16. Install the display interface board.
17. Final button-up.
18. Operator’s check.
19. Troubleshooting.

808757-90195
Equipment and Tools Required
Table 2 Required Equipment and Tools
Description Part Number
T-10 TORX driver (set to 10 in-lbs) N/A
T-15 TORX driver (set to 21 in-lbs) N/A
15/64 open-end wrench N/A
Hex screwdriver (5.5 mm) N/A
Flatblade screwdriver (small) N/A
Needle-nose pliers N/A
ESD grounding wrist strap 9300-1367
5 ft grounding cord for wrist strap 9300-0980
2 x 4 ft conductive table mat and 15 ft grounding wire 9300-0797
ESD heel strap (for use with conductive floors) 9300-1308

08757-90195 9
Step 1. Remove the Outside Covers
WARNING The opening of covers or removal of parts is likely to expose
dangerous voltages. Disconnect the product from all voltage
sources while it is being opened.
Refer to Figure 1-2.
1. Disconnect the power cord.
2. Remove the strap handle by removing two screws (item ①).
3. Remove the four rear panel feet (item ②).
4. Loosen the top cover screw (item ③) and slide the top cover off.
5. Slide the side covers off. One side cover has a rear center screw.
6. Loosen the bottom cover screw (item ③) and slide the bottom cover off.
7. Remove the trim strip (item ④). Use a flatblade screwdriver to lift it out of the frame.
Figure 1-2 Outside Cover Removal

10 08757-90195
Step 2. Remove the Inside Covers
Refer to Figure 2-1.
1. Remove the logger cover by removing two screws (item ①).
2. Remove the CRT cover by removing twelve screws:
•fivescrews(item
②) (Two of these screws do not hold the cover in place, but need to be
removed.)
•fivescrews(item③)
• two screws (item ④)
Figure 2-1 Inside Cover Removal

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Step 3. Remove the Front Panel
Refer to Figure 3-1.
1. Turn the instrument over to expose the bottom side of the instrument.
2. Disconnect the detector connections (J2, J3, J4, and J5) from the motherboard. (There may
be three or four depending on the option configuration.)
Figure 3-1 Detector Connectors

12 08757-90195
Refer to Figure 3-2.
3. Turn the instrument over to expose the top side of the instrument.
4. Remove the softkey cover (item ①). Gently lift the softkey cover off using something such
as a flatblade screwdriver.
5. Remove the bezel by removing the two screws underneath the softkey cover.
6. Remove the two top and bottom frame screws (item ②).
7. Remove the two center screws (item ③) and tip the front panel partially out of the frame.
Figure 3-2 Front Panel Removal

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NOTE Option 002 has a gray RF cable that connects the keypad assembly to
connector J1 on the CAL/MOD driver board (green guides). Lift the board
slightly and use a 15/64 open-end wrench to disconnect the cable.
Refer to Figure 3-3.
8. Disconnect the gray ribbon cable (item ④) from the motherboard. The front panel is now
free from the analyzer.
Figure 3-3 Front Panel Ribbon Cable Removal

14 08757-90195
Step 4. Remove the CRT
NOTE Recycle or dispose of the cathode ray tube (CRT) in accordance with
applicable environmental laws.
Refer to Figure 4-1.
1. Remove the connector clip from connector J4 and unplug the large ribbon cable (item ①).
2. Disconnect white power cable (item ②) from connector J1 on the graphics board and
connector J1 on the power supply board. Discard the power cable. A new power cable with
eight conductors is provided in the upgrade kit.
3. Disconnect the rear panel ribbon cable (item ③) from connector J2.
Figure 4-1 CRT Removal
4. Disconnect the gray CRT ribbon cable (item ④) from connector J3 by lifting the graphics
board.
5. Remove the graphics board.
6. Slide the CRT out of the front frame.

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7. Disconnect the white cable (item ⑤) from connector J2 by lifting the CAL/MOD driver
board.
CAUTION Mark the log amplifier boards (08757-60087) and the corresponding white
board tab so that their placement order is uniquely identified. (Use a
permanent marker). It will be necessary to replace each board in their
original slot during the installation procedure. The instrument’s
calibration will be invalid if the boards are not replaced in their original
positions.
8. Remove all of the printed circuit boards from the board cage:
• CPU (orange guide)
• ADC (yellow guide)
• GPIB (blue guide)
• CAL/MOD driver (green guide)
• Log Amplifiers (white guide) (Refer to caution above.)

16 08757-90195
Step 5. Remove the Rear Panel
Refer to Figure 5-1.
1. Turn the instrument over to expose the bottom side of the instrument.
2. Disconnect the thermistor switch by removing two screws (item ①).
3. Cut the two tie wraps that bundle the blue and red cables, and the gray and white/gray
cables (item ②).
4. Disconnect the red and blue fan wires (item ③) from connector J3.
5. Using needle-nose pliers, disconnect the five transformer wires and one gray wire
from the line module (item ④).
6. Using a flat blade screwdriver loosen, but do not remove, the nine screws on the green
connectors and disconnect the eight transformer wires (item ⑤): red/blue/red,
yellow/green/yellow, and purple/blank/purple.
Figure 5-1 Power Supply Cable Removal

08757-90195 17
Refer to Figure 5-2.
7. Remove the four bottom and two top rear panel screws (item ⑥) and tip the rear panel
partially out of the frame.
8. Disconnect the large gray ribbon cable (item ⑦) from the motherboard. The rear panel is
now free from the analyzer. Discard the rear panel; a new one is provided in the upgrade
kit.
Figure 5-2 Rear Panel Removal

18 08757-90195
Step 6. Remove the Power Supply Board
Refer to Figure 6-1.
1. Remove the plastic warning shield on the power supply board. Using needle-nose pliers,
pinch and hold the protruding plastic sleeve (item ①) while lifting the plastic shield off the
board.
Figure 6-1 Plastic Warning Shield

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Refer to Figure 6-2.
2. Remove the power supply board by removing nine screws (item ②). Use the plastic ring
(item ③) to help lift the board. You may encounter resistance as you are removing the
board due to the length of the pins on connector J2.
Figure 6-2 Power Supply Board (top view)

20 08757-90195
Step 7. Remove the Front Frame
Refer to Figure 7-1.
1. Remove the ON/OFF switch plate by removing three screws (item ①).
2. Remove the front frame by removing eight screws (item ②): four on each side of the
instrument frame.
Figure 7-1 Front Frame