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Keysight N9000A Service Guide
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Keysight
N90
0
0A
C
XA Signal Analyzer
This manual
pr
ovides documentat
ion for the following
instruments:
N9000A Option 503 (9 kHz
3.0 GHz)
N9000A Option 507 (9 kHz
7.5 GHz)
Notice: This document contai
ns references to Agilent.
Please note that Agilent’s Te
st and Measurement business
has become Keysight Technologies. For more information,
go to www.keysig
ht.com.
Service Guide
2
Table of Contents
Table of Contents
7
Overview
15
What You will Find in this Chapter
16
Agilent CXA Signal Analyzer Overview
17
Agilent CXA Overview
17
Instrument Option Descriptions
18
Signal Analyzer Accessories
19
Manual Set on CD-ROM
19
50 Ohm Load
20
50 Ohm/75 Ohm Minimum Loss Pad
20
75 Ohm Matching Transformer
20
AC Probe
20
AC Probe (Low Frequency)
20
Broadband Preamplifiers and Power Amplifiers
20
RF and Transient Limiters
21
Power Splitters
21
Static Safe Accessories
21
Before You Start Troubleshooting
22
ESD Information
24
Protection from Electrostatic Discharge
24
Handling of Electronic Components and ESD
25
Test Equipment Usage and ESD
25
For Additional Information about ESD
25
Service Equipment You will Need
26
Calibration Application Software
26
USB Keyboard and Mouse
27
USB Storage Device
27
Required Test Equipment List
28
Required Equipment
28
After an Instrument Repair
36
Contacting Agilent Technologies
37
Instrument Serial Numbers
39
How to Return Your Instrument for Service
40
Service Order Number
40
Original Packaging
40
Other Packaging
41
Boot up and Initialization Troubleshooting
43
What You will Find in this Chapter
44
Check the Basics
45
CXA Instrument Boot up Process
46
Typical Instrument Boot-Up Process Flow
47
Potential Problems During Boot Process
49
Yellow Standby LED Does Not Illuminate
49
Green Power on LED Does Not Illuminate
51
Fan(S) Are Not Operating
53
No Agilent Splash Screen Displayed
55
Instrument Hangs at the Agilent Splash Screen
56
PCI Enumeration Error
56
Instrument Cannot Completely Load or Run the Operating System
57
Troubleshooting a Blank Display
57
Verify LCD Backlight Functionality
58
Verify Video Signal Path Integrity
61
Video Controller / LCD Troubleshooting
61
Initializations DID Not Complete
61
Fails an Initial Alignment
62
Signal Level Verification
63
Instrument Messages
65
Introduction
66
Event and Condition Categories
66
Event Message Format
67
Event Queues
68
Advisory Messages
70
800, Operation Complete Event
76
700, Request Control Event
77
600, User Request Event
78
500, Power on Event
79
-400 to -499, Query Errors
80
-300 to -399, Device-Specific Errors
81
-221 Settings Conflict Errors
84
-200 to -299, Execution Errors
94
-100 to -199, Command Errors
102
Error
105
Condition Errors 1 to 99, Calibration
106
Condition Errors 6 to 34, Calibration Skipped
106
Condition Errors 36 to 64, Calibration Needed or Failed
107
Condition Errors 65 to 92, Calibration Needed (Extended)
108
Condition Errors 67 to 95, Calibration Failure (Extended)
109
Condition Errors 101 to 199, Measurement Integrity
110
Condition Errors 201 to 299, Signal Integrity
112
Condition Errors 301 to 399, Uncalibrated Integrity
116
Condition Errors 401 to 499, Power
119
Condition Errors 501 to 599, Frequency
120
Condition Errors 601 to 699, Error Summaries
121
Condition Errors 701 to 799, Operation
122
Condition Errors 801 to 899, Temperature
123
RF Section Troubleshooting
125
What You will Find in this Chapter
126
RF Assembly Description
127
Purpose
127
RF Section Theory of Operation
128
Input Attenuator
128
Low Pass Filter
128
Preselector Filters
128
Mixer
128
1St if Amplifier
128
1St if Filter
128
2Nd lo
128
2Nd if Amplifier
129
2Nd if Filter
129
Step Attenuator
129
3Rd lo
129
3Rd if Amplifier
129
3Rd if Filter
129
Burst Carrier Trigger
129
Troubleshooting
130
Verifying the 50 Mhz Calibrator Signal
131
Verifying the 22.5 Mhz if Signal
133
Verifying the 300 Mhz L.O. Input Power
134
Digital if Troubleshooting
135
What You will Find in this Chapter
136
Digital I.F. Assembly Description
137
A3 Digital I.F. Assembly Theory of Operation
138
A3 Digital I.F. Troubleshooting
140
Verifying the 22.5 Mhz Input Power
140
Verifying the 10 Mhz Reference Input
142
Synthesizer/Reference Troubleshooting
145
What You will Find in this Chapter
146
A9 L.O. Assembly Description
147
Purpose
147
A9 L.O. Assembly Troubleshooting
148
Verifying the 1St L.O. Output Power
149
Verifying the Reference Signal
150
Cpu/Disk Drive Troubleshooting
151
What You will Find in this Chapter
152
A3 CPU Description
153
Disk Drive
153
Front Panel Interface
153
Graphics Controller
153
Power Supply Control
153
Rear Panel Connectivity
153
System Memory
154
System Processor
154
A4 Hard Disk Drive
155
Overview
156
Troubleshooting Software Related Issues
157
Reloading the X-Series Software
158
Hard Drive Recovery Process
159
Agilent Recovery System
159
Using the Instrument Recovery System
160
Replacing the Instrument Hard Disk Drive
160
Power Supply/Midplane Troubleshooting
161
What You will Find in this Chapter
162
A5 Power Supply Description
163
Purpose
163
Power Supply Theory of Operation
164
A5 Power Supply Basic Troubleshooting (Cover On)
168
A6 Midplane Description
169
Purpose
169
A6 Midplane Assembly Troubleshooting
171
Front Panel/Motherboard Troubleshooting
173
What You will Find in this Chapter
174
A7 Motherboard Description
175
Purpose
175
A7 Motherboard Troubleshooting
176
A1 Front Panel Assembly
177
A1A2 Front Panel Interface Board
177
A1A3 Lcd
177
A1A4 LCD Inverter Board
177
A1A5 Front Panel USB Interface Board
177
Block Diagrams
179
What You will Find in this Chapter
180
Block Diagrams
181
RF Block Diagram
182
L.O. Synthesizer & Reference Block Diagram
183
Synthensizer & Reference Block Diagram
183
Digital I.F. Block Diagram
184
CXA Computer Block Diagram
185
Service and Diagnostics Menus
187
Overview
188
Controlling Access
188
Secure Service Access
188
Menus
189
Service Key Descriptions
192
Service
192
Timebase
193
Corrections
194
Band Lock
196
LO Band Lock
197
Align
198
Replaceable Parts
201
What You will Find in this Chapter
202
How to Order Parts
203
Replaceable Parts
204
Hardware
209
Assembly Replacement Procedures
225
What You will Find in this Chapter
226
Before Starting
227
Safety
227
Tools You will Need
228
Adjustments Tests after an Instrument Repair
228
Major Assembly Locations
229
Instrument Outer Case
230
Standard Instrument
230
Option PRC
232
Top Brace and Reference Bracket
235
Removal
235
Replacement
235
RF Assembly
236
Removal
236
Replacement
237
Rear Panel
238
Removal
238
Replacement
238
Assembly
239
Removal
239
Replacement
240
Power Supply Assembly
241
Removal
241
Replacement
242
CPU Assembly
243
Removal
243
Replacement
243
Hard Disk Drive
244
Installation Procedure
244
Powering on the Instrument
249
Accepting the End-User License Agreement (EULA) Screen
249
Setting System Date and Time
251
Utilities, Adjustments, and Performance Verification Tests
251
Additional Tasks
252
DIF Assembly
254
Removal
254
Replacement
254
Midplane Assembly
255
Removal
255
Replacement
256
Motherboard Assembly
257
Removal
257
Replacement
260
Fan Assembly
262
Removal
262
Replacement
264
Input Connector Assembly
265
Removal
265
Replacement
266
Front Frame Assembly
267
Removal
267
Replacement
268
Bail Handle Removal (Option PRC)
269
Front Frame Assembly Components
270
Post-Repair Procedures
277
What You will Find in this Chapter
278
Before Starting
278
Post-Repair Procedures
279
Calibration File Backup
282
BIOS Setup Changes
283
Functional Tests
289
Functional Test Versus
290
Performance Verification
290
Before Performing a Functional Test
291
Test Equipment
292
Displayed Average Noise Level (DANL)
294
Procedure
294
Frequency Readout Accuracy
296
Procedure
297
Second Harmonic Distortion (SHD)
298
Test Limits
298
Procedure
299
Amplitude Accuracy at 50 Mhz
300
Procedure
301
Testing Preamp Option (P03, P07)
303
Frequency Response (Flatness)
304
Procedure
305
Frequency Response (Flatness), Preamp on
307
Procedure
308
Scale Fidelity
310
Procedure
311
Instrument Software
313
What You will Find in this Chapter
314
Instrument Software Overview
315
Software Licensing
316
Software Updates
317
Instrument Measurement Application Software
317
89601 VSA Software
317
Other manuals for Keysight N9000A
Manual
52 pages
Measurement Guide
225 pages
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Keysight N9000A Specifications
General
Brand
Keysight
Model
N9000A
Category
Measuring Instruments
Language
English
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