Agilent Technologies 8730A Manuals

Manuals and User Guides for Agilent Technologies 8730A. We have 1 Agilent Technologies 8730A manual available for free PDF download: Service Manual

Agilent Technologies 8730A Service Manual (183 pages)

RF Network Analyzers and Tuner Analyzer

Brand: Agilent Technologies | Category: Measuring Instruments | Size: 1.56 MB

Table of Contents
10
Performance Tests
18
System Speci Cations Summary
19
Measurement Port Speci Cations
19
Source Speci Cations
19
Receiver Speci Cations
20
System Speci Cations
22
Performing the Operator's Check
23
Make a Ransmission Measurement
24
Make a Broadband Power Measurement
25
Make a Re Ection Measurement
26
If the Analyzer Fails the Operator's Check
27
Instructions for Using the Analyzer Performance Est Software
28
Introduction
28
Estimated Ime
28
Equipment
29
File Structure
31
Con Guration File
32
Getting Started
32
Performance Est Software Installation
33
Con Guration Menu
33
He Analyzer's HP-IB Address
33
He Attenuator Switch Driver Model Number (HP 11713A) and Address
34
He Printer Address (01)
34
He Program Directory and the Mass Storage Unit Speci Er
34
He Data Directory and MSUS
34
He Step Attenuator's 40 Db Card Selection (3)
34
Sensors
35
Db Attenuators (Pads)
35
External 10 Db Step Attenuator
35
Using the Program
36
Main Menu
36
Est Selection Menu
37
Miscellaneous Information
38
Individual Est Notes and Descriptions
38
Frequency Accuracy
38
Gain Compression
38
Noise Floor
39
Dynamic Accuracy
39
Power Flatness
40
Absolute Power Accuracy
40
Broadband Frequency Response
41
Directivity (Includes Source Match, Test Port Match, and Re Ection Tracking)
41
Spurs (Including Harmonics)
42
AM Delay Modulator (Option 1DA/1DB Analyzers Only)
43
Race Noise
43
Adjustments
44
Fractional-N VCO Adjustment
44
Required Equipment
47
Warmup Ime
47
Estimated Adjustment Ime
47
Procedure
47
Fractional-N Spur Adjustment
50
Required Equipment
54
Estimated Adjustment Ime
54
Procedure
54
Frequency Accuracy Adjustment
54
Warmup Ime
54
Estimated Adjustment Ime
57
Procedure
57
Set Serial Number, Adjustment #100
57
Required Equipment
57
In Case of DICulty
58
LO Power Correction, Adjustment #101
59
Required Equipment
59
Warmup Ime
59
Estimated Adjustment Ime
59
Procedure
59
Switched Gain Correction, Adjustment #102
60
Required Equipment
60
Warmup Ime
60
Estimated Adjustment Ime
60
Procedure
60
External Detector Correction, Adjustment #103
62
Required Equipment
62
Warmup Ime
63
Estimated Adjustment Ime
63
Procedure
63
Auxiliary Input Correction, Adjustment #111
64
Required Equipment
64
Warmup Ime
64
Estimated Adjustment Ime
64
Procedure
64
Required Equipment
65
Warmup Ime
65
Estimated Adjustment Ime
65
Procedure
65
In Case of DICulty
66
B Amplitude Correction, Adjustment #105
68
Required Equipment
68
Warmup Ime
68
Estimated Adjustment Ime
68
Procedure
68
Required Equipment
69
Warmup Ime
69
Estimated Adjustment Ime
69
Procedure
69
B* Amplitude Correction, Adjustment #110
70
Required Equipment
70
Warmup Ime
70
Estimated Adjustment Ime
70
Procedure
70
AM Delay Correction, Adjustment #112
71
Required Equipment
71
Warmup Ime
71
Estimated Adjustment Ime
71
Procedure
71
Re Ection (One-Port) Correction, Adjustment #107
72
Required Equipment
72
Warmup Ime
72
Estimated Adjustment Ime
72
Procedure
72
R* Amplitude Correction, Adjustment #108
73
Required Equipment
73
Warmup Ime
73
Estimated Adjustment Ime
73
Procedure
73
R* Frequency Response Correction, Adjustment #109
74
Required Equipment
74
Warmup Ime
74
Estimated Adjustment Ime
74
Procedure
74
Assembly Replacement
76
Required Ools
76
Major Assembly Removal/Replacement
77
A1 Front Panel Assembly Replacement
78
How to Remove the Front Panel Assembly
79
A2 CPU Board Assembly Replacement
80
How to Remove the CPU Board Assembly
81
A3 Fractional-N/Reference Assembly Replacement
83
How to Remove the Fractional-N/Reference Assembly
83
A4 Source Assembly Replacement
84
How to Remove the Source Assembly
84
A5 Receiver Assembly Replacement
85
How to Remove the Receiver Assembly
85
A6 Power Supply Assembly Replacement
87
How to Remove the Power Supply Assembly
87
A7 Display Assembly Replacement
88
How to Remove the Display Assembly
88
How to Replace the Power Switch or Brightness Control
88
How to Adjust the Position of the CR
88
A8 3.5" Internal Disk Drive Assembly Replacement
89
How to Remove the 3.5" Disk Drive Assembly
89
Attenuator Replacement
89
AM Delay Modulator Replacement
89
Post Repair Procedures
90
How to Order Parts
91
Save Ime by Calling (800) 227-8164
91
Troubleshooting and Block Diagrams Introduction
92
General Notes
92
Service Kit
94
How to Use the Extender Board
95
Initial Observations - Normal Power-Up Sequence
96
Operator's Check
97
Category 1 Failures - Dead or no Response, no Display, Unreadable Display, or Error Messages on the Display
98
Roubleshooting A6 Power Supply Assembly Problems
98
Check the Rear Panel Leds
98
Measure the Power Supply Voltages
99
Remove Assemblies
100
Roubleshooting Digital Group Problems
100
Error During Power-Up
100
Est Status Leds
101
Est Status Leds Code
101
Error Occurs During DSP Initialization or Calculating CoeCients
105
Clear the Nonvolatile SRAM
105
Measure the 5 Mhz Reference Signal
105
Front Panel Problems
106
Other Power-Up Problems
106
Other Error Messages
107
Category 2 Failures - no Error Message, but Nonfunctional Measurement
108
Roubleshooting the A3 Fractional-N/Reference Assembly
108
Phase Lock Problems
108
Detailed Fractional-N/Reference Roubleshooting
109
Source Frequency Versus Fractional-N Frequency
109
Roubleshooting the A4 Source Assembly
110
Roubleshooting the A5 Receiver Assembly
110
A5 Receiver Assembly Diode Replacement
112
Detailed Receiver Roubleshooting
115
Category 3 Failures - Inaccurate (but Reasonably Functional) Measurements
116
Roubleshooting Spurious Responses and Inaccurate Data
116
Spurious Signals
116
Spurs in the Data Race
117
Inaccurate Data
117
Receiver Power Problems
118
Category 4 Failures: Peripheral Device Problems
119
DIN Keyboard
119
S-232 Printers and Plotters
119
Centronics (Parallel) Printers and Plotters
119
HP-IB Systems
120
HP-IB Problems with Printers or Plotters
120
General Checks for HP-IB Systems
120
LAN Roubleshooting (Option 1F7)
120
Ping Command
121
How to Ping
121
Available HP LAN Cables
124
Service Related Menus
130
Introduction
130
Ests and Adjustments Menu
131
Select Self- Est Menu
131
Select Adjustment Menu
133
Instrument Info
135
Update Corr Const Menu
135
Service Utilities Menu 1
136
Meas Cal Options Menu
138
Analog Bus Menu
138
Analog Bus Nodes
139
Service Utilities Menu 2
140
Service Utilities Menu 3
140
View Array Master Menu/View Array Interpol Menu
141
Miscellaneous Service Functions
141
Clearing Nonvolatile Memory (SRAM)
141
HP-IB Command Reference for Service
142
Syntax Summary
142
Softkey SCPI Commands
142
Alphabetical SCPI Command Summary
143
Theory of Operation
144
Introduction
144
System Heory
144
Analyzer Functional Group
145
Power Supply Heory
145
Digital Control Heory
145
A1 Front Panel Assembly
145
A2 CPU Assembly
145
A7 Display Assembly
146
A8 3.5" Internal Disk Drive Assembly
146
Source Heory
147
A3 Fractional-N/Reference Assembly
147
A4 Source Assembly
147
HP 8713C/14C A4 Source Assembly
150
A5 Receiver Assembly
151
Parts List Analyzer Hardware
152
Speci C Assembly and Cable Locations
152
A1 Front Panel Assembly and Cable Locations
155
A3 Fractional-N/Reference Assembly and Cable Locations
157
A6 Power Supply Assembly and Cable Locations
165
A7 Display Assembly and Cable Locations
166
Storing Correction Constants to Disk
171
Loading Correction Constants from Disk
172
Storing Correction Constants to EPROM
172
Installing Correction Constants from Disk
172
In Case of DICulties
172
Upgrading or Re-Installing Firmware
173
How to Upgrade or Re-Install the Firmware
173
Safety, Warranty, and Assistance
174
Safety Symbols
174
General Safety Considerations
175
Safety Earth Ground
175
Servicing
175
Warranty
176
Limitation of Warranty
176
Exclusive Remedies
176
Assistance
177
Shipment for Service
177
Index
180

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Agilent Technologies 8730A Service Manual (183 pages)

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