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N5230A
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Servic
e Guide
N52
30-90014
7-
17
PNA Series Microwa
v
e Network Analyzer
s
Repair and Replacement Procedures
N5230A
R
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A1
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Figure 7-6
A5, A6,
A7, A8, A9, and A10 Board Asse
mblies Removal
198
200
Table of Contents
Main Page
Default Chapter
3
Service Guide N5230-90014
3
Table of Contents
5
1 Safety and Regulatory Information
11
Information in this Chapter
12
Chapter One At-A-Glance
12
Safety Symbols
13
General Safety Considerations
13
Safety Earth Ground
13
Before Applying Power
13
Servicing
14
Electrostatic Discharge Protection
16
Regulatory Information
17
Instrument Markings
17
Lithium Battery Disposal
18
2 General Product Information
19
Information in this Chapter
20
Chapter Two At-A-Glance
20
Maintenance
21
Physical Maintenance
21
Electrical Maintenance
21
Analyzer Options Available
21
Options as Upgrades
21
Option 010, Time Domain
21
Option 014, Configurable Test Set
21
Option 080, Frequency Offset Mode
22
Option 1CM, Rack Mount Flange Kit for Instruments Without Handles
22
Option 1CP, Rack Mount Flange Kit for Instruments with Handles
22
Option 1E1, Source Attenuators
22
Option 221, 2-Port Front Panel Upgrade
22
Option 897, Built-In Tests for Commercial Calibration
22
Option 898 Built-In Tests for Standards Compliant Calibration
23
Option F06, 6 Ghz Frequency Range
23
Option F13, 13.5 Ghz Frequency Range
23
Analyzer Upgrades Available
24
Analyzer Accessories Available
24
CD-RW Drive
24
USB Hub
24
Required Service Test Equipment
25
Agilent Support, Services, and Assistance
28
Service and Support Options
28
Calibration Options
28
Contacting Agilent
29
Shipping Your Analyzer to Agilent for Service or Repair
29
3 Tests and Adjustments
31
Information in this Chapter
32
Chapter Three At-A-Glance
32
Before You Begin
34
Verify the Operating Environment
34
Protect against Electrostatic Discharge (ESD)
34
Allow the Analyzer to Warm up
34
Review the Principles of Connector Care
35
About System Verification and Performance Tests
36
System Specifications
36
Instrument Specifications
36
System Verification Procedure
37
Performance Tests
37
Certificate of Calibration
37
ANSI/NCSL Z540-1-1994 Verification
38
Non-ANSI/NCSL Z540-1-1994 Verification
39
Preliminary Checks
40
The Operator's Check
40
The Test Port Cable Checks
42
System Verification
49
What the System Verification Verifies
49
Measurement Uncertainty
50
Measurement Traceability
51
Performing System Verification
52
Performance Tests (Agilent N7840A Software Package)
58
Source Power Accuracy Test
58
Source Maximum Power Output Test
59
Source Power Linearity Test
59
Frequency Accuracy Test
60
Trace Noise Test
60
Receiver Compression Test
61
Noise Floor Test
62
Calibration Coefficients Test
63
Dynamic Accuracy Test
64
Adjustments
65
10 Mhz Frequency Reference Adjustment
65
LO Power Adjustment
66
Source Calibration Adjustment
67
Receiver Calibration Adjustment
68
4 Troubleshooting
71
Information in this Chapter
72
Chapter Four At-A-Glance
72
Protect against Electrostatic Discharge (ESD)
73
Assembly Replacement Sequence
73
Getting Started with Troubleshooting
74
Check the Basics
74
Troubleshooting Organization
75
Power up Troubleshooting
76
Power Supply Check
77
Troubleshooting LCD Display Problems
82
Front Panel Troubleshooting
86
A1 Front Panel Keypad and RPG Test
86
A2 Display Test
88
A3 Front Panel Interface Board
89
Rear Panel Troubleshooting
90
Checking the USB Ports
90
Checking the SERIAL (RS-232), PARALLEL (1284-C), or VGA Port
91
Checking the GPIB Port
91
LAN Troubleshooting
92
Measurement System Troubleshooting
96
Before You Begin-Consider: Where Do You See a Problem
96
Verifying the A, B, R1, and R2 Traces (Standard S-Parameter Mode)
98
Where to Begin Troubleshooting
99
Checking the Source Group
101
Checking the Signal Separation Group
112
Checking the Receiver Group
115
Instrument Block Diagrams Sheet 1
117
Microwave PNA, N5230A, Passive
117
Instrument Block Diagrams Sheet 2
119
Microwave PNA, N5230A, Active
119
5 Theory of Operation
121
Information in this Chapter
122
Chapter Five At-A-Glance
122
Network Analyzer System Operation
123
Functional Groups of the Network Analyzer
123
Synthesized Source Group Operation
126
Basic Operation
126
Frequency Offset Operation (Option 080)
129
A7 and A9 Fractional-N Synthesizer Boards
129
A6 and A8 Multiplier Boards
129
A19 Switch/Splitter/Leveler/Amplifier/Multiplier (SSLAM)
129
A10 Frequency Reference Board
130
A16 Test Set Motherboard
131
Signal Separation Group Operation
135
A19 Switch/Splitter/Leveler/Amplifier/Multiplier (SSLAM)
136
A21 and A22 Test Port Couplers
136
A25 and A26 60-Db Source Step Attenuators (Option 1E1)
136
Configurable Test Set (Option 014)
136
Receiver Group Operation
139
A20 Mixer Brick
139
A5 SPAM Board (Analog Description)
139
Digital Processing and Digital Control Group Operation
141
Front Panel Subgroup
143
Data Acquisition and Processing Subgroup
144
Power Supply Group Operation
146
6 Replaceable Parts
147
Information in this Chapter
148
Chapter Six At-A-Glance
148
Ordering Information
149
Assembly Replacement Sequence
150
Rebuilt-Exchange Assemblies
151
Replaceable Parts Listings
152
Front Panel Assembly, All Options
154
Top Assemblies, All Options
156
Top Cables, All Options
158
Bottom Assemblies, Passive Configuration (Options F06 and F13)
160
Bottom Cables, Passive Configuration (Options F06 and F13)
162
Bottom Assemblies, Active Configuration
164
Bottom Cables, Active Configuration
166
Top Hardware and Miscellaneous Parts, All Options
168
Bottom Hardware and Miscellaneous Parts, All Options
170
Internal Hardware and Miscellaneous Parts, All Options
172
External Hardware and Miscellaneous Parts, All Options
174
Rear Panel Assembly, All Options
176
Hard Disk Drive Assembly, All Options
178
Miscellaneous Part Numbers
180
7 Repair and Replacement Procedures
183
Information in this Chapter
184
Chapter Seven At-A-Glance
184
Personal Safety Warnings
185
Electrostatic Discharge (ESD) Protection
185
Assembly Replacement Sequence
186
Removal and Replacement Procedures
187
Removing the Covers
188
Removing and Replacing the Front Panel Assembly
190
Removing and Replacing Front Panel Subassemblies
192
Removing and Replacing the Display Inverter Board and the Display Lamp
194
Removing and Replacing the A4 Power Supply Assembly
196
Removing and Replacing the A5 through A10 Boards
198
Removing and Replacing the A14 System Motherboard
200
Removing and Replacing the A15 CPU Board
202
Removing and Replacing the A16 Test Set Motherboard and the USB Hub
204
Removing and Replacing the A19 SSLAM
206
Removing and Replacing the A20 Mixer Brick (Quintbrick)
208
Removing and Replacing the A21 and A22 Test Port Couplers and Coupler Mounting Brackets
210
Tools Required
210
Removing and Replacing the A25 and A26 60-Db Source Step Attenuators (Option 1E1)
212
Removing and Replacing the A40 Floppy Disk Drive
214
Removing and Replacing the A41 Hard Disk Drive (HDD)
216
Removing and Replacing the Midweb and the B1 Fan
222
Removing and Replacing the Lithium Battery
225
Post-Repair Procedures
227
8 General Purpose Maintenance Procedures
229
Chapter Eight At-A-Glance
230
Information in this Chapter
230
Error Terms
231
Using Error Terms as a Diagnostic Tool
231
Performing Measurement Calibration
232
Using Flowgraphs to Identify Error Terms
232
Accessing Error Terms
236
Error Term Data
238
Option Enable Utility
242
Accessing the Option Enable Utility
242
Enabling or Removing Options
243
Repairing and Recovering Option Data
244
Installing or Changing a Serial Number
245
Firmware Upgrades
246
How to Check the Current Firmware Version
246
Downloading from the Internet
246
Operating System Recovery
247
Recovering from Hard Disk Drive Problems
247
Correction Constants
248
Storing Correction Constants
248
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