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N9010B
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Keysight N9010B EXA Signal Analyzer Service Guide
515
Assembly Replacement Procedur
es
Analog I.F. (AIF)/Digital I.F. (DIF) Assembly
Figure 15-63
W38, W40, W4
1, W42 Removal - Option B40, MPB, or DP2
514
516
Table of Contents
Main Page
Table of Contents
5
Overview
13
What You will Find in this Chapter
13
Keysight EXA Signal Analyzer Overview
14
Instrument Option Descriptions
15
Signal Analyzer Accessories
16
Manual Set on CD/DVD
16
50 Ohm Load
17
50 Ohm/75 Ohm Minimum Loss Pad
17
AC Probe
17
AC Probe (Low Frequency)
17
Broadband Preamplifiers and Power Amplifiers
17
RF and Transient Limiters
17
Power Splitters
18
Static Safe Accessories
18
Before You Start Troubleshooting
19
Lithium Battery Disposal
20
ESD Information
21
Protection from Electrostatic Discharge
21
Handling of Electronic Components and ESD
22
Test Equipment Usage and ESD
22
For Additional Information about ESD
22
Service Equipment You will Need
23
Calibration Application Software
23
Front End Controller Troubleshooting Kit
24
USB Keyboard and Mouse
25
USB Storage Device
25
Required Test Equipment List
26
After an Instrument Repair
38
Contacting Keysight Technologies
39
Instrument Serial Numbers
42
How to Return Your Instrument for Service
43
Service Order Number
43
Original Packaging
43
Other Packaging
44
Boot up and Initialization Troubleshooting
45
What You will Find in this Chapter
45
Check the Basics
46
Instrument Boot up Process
47
Typical Instrument Boot-Up Process Flow
48
Potential Problems During Boot Process
51
Yellow Standby LED Does Not Illuminate
51
Green Power on LED Does Not Illuminate
53
Fan(S) Are Not Operating
55
No Keysight Splash Screen Displayed
57
Instrument Hangs at the Keysight Splash Screen
58
PCI Enumeration Error
58
Instrument Cannot Completely Load or Run the Operating System
59
Troubleshooting a Blank Display
59
Verify Video Signal Path Integrity
60
Video Controller / Touch Screen Display Troubleshooting
60
Initializations DID Not Complete
60
Fails an Initial Alignment
61
Signal Level Verification
66
Signal Level Problem with Input Frequencies < 3.6 Ghz
66
Signal Level Problem with Input Frequencies > 3.6 Ghz
67
Instrument Messages
69
Introduction
69
Event Vs. Condition Messages
69
Event and Condition Categories
70
Event Message Format
71
Event Queues
72
Advisory Messages
74
Event Messages
80
800, Operation Complete Event
81
700, Request Control Event
81
600, User Request Event
81
500, Power on Event
81
-400 to -499, Query Errors
81
-300 to -399, Device-Specific Errors
82
-221 Settings Conflict Errors
85
-200 to -299, Execution Errors
97
-100 to -199, Command Errors
108
Error
110
Condition Messages
111
Condition Errors 1 to 99, Calibration
111
Condition Errors 101 to 199, Measurement Integrity
116
Condition Errors 201 to 299, Signal Integrity
119
Condition Errors 301 to 399, Uncalibrated Integrity
123
Condition Errors 401 to 499, Power
127
Condition Errors 501 to 599, Frequency
127
Condition Errors 601 to 699, Error Summaries
129
Condition Errors 701 to 799, Operation
130
Condition Errors 801 to 899, Temperature
131
What You will Find in this Chapter
133
RF Section Troubleshooting (Rf/Microwave Analyzers)
134
RF Section Description
134
Purpose
134
RF Section Theory of Operation
138
Troubleshooting
142
Quick Check to Verify the Low Band Signal Path
142
Troubleshooting a Low Band Problem
146
Quick Check to Verify High Band RF Path #1
169
Troubleshooting a High Band Problem
173
High Band Preamp (Option P07, P13, P26)
198
High Band Mixing Equations
198
Microwave Preselector Bypass (Option MPB)
199
RF Section Troubleshooting (Millimeter-Wave Analyzers)
201
What You will Find in this Chapter
201
RF Section Description
202
A9 Input Attenuator a
205
A10 Input Attenuator B
205
A11 Low Band Switch
205
A12 YTF Preselector
205
A13 RF Front End Assembly (Options 532, 544)
206
Troubleshooting
208
Quick Check to Verify the Low Band Signal Path
208
Troubleshooting a Low Band Problem
211
Quick Check to Verify High Band RF Path
218
Troubleshooting a High Band Problem
223
Front End Control Troubleshooting
231
What You will Find in this Chapter
231
A15 Front End Control Description
232
Purpose
232
A15 Front End Control Assembly Troubleshooting
238
Verifying Input Attenuator A, Input Attenuator B, Low Band Switch Logic and Power Supplies
239
Preselector Tune Output
249
Verifying Microwave Preselector Bypass Switch (Option MPB)
250
Oscilloscope Test
250
Verifying aux if Out, Rear Panel (Option CR3, CRP Only)
255
Standard Analyzer
255
Verifying Option CR3
256
Verifying Option CRP
257
Analog/Digital if Troubleshooting
259
What You will Find in this Chapter
259
25 Mhz BW if Section
261
A2 Analog I.F. Assembly Description
261
A2 Analog I.F. Assembly Theory of Operation
262
A2 Analog I.F. Troubleshooting
265
A3 Digital I.F. Assembly Description
272
A3 Digital I.F. Assembly Theory of Operation
273
A3 Digital I.F. Troubleshooting
275
40 Mhz BW if Section
280
A2 Analog if Assembly Description
280
A2 Analog if Assembly Theory of Operation
281
A2 Analog if Troubleshooting
284
A3 Digital if Assembly Description
291
A3 Digital if Assembly Theory of Operation
292
A3 Digital if Troubleshooting
294
L.O. Synthesizer/Reference Troubleshooting
303
What You will Find in this Chapter
303
A14 L.O. Synthesizer Assembly Description
304
Purpose
304
A14 L.O. Synthesizer Theory of Operation
305
Brief Description of the Major Blocks
305
A14 L.O. Synthesizer Troubleshooting
306
Verifying the 4800 Mhz Input Power & Frequency Stability
307
Verifying the 1St L.O. Output Power
310
A16 Reference Assembly Description
314
Purpose
314
A16 Reference Assembly Troubleshooting
316
Diagnostic Leds
323
Cpu/Disk Drive Troubleshooting
325
What You will Find in this Chapter
325
A4 Processor Description
326
Disk Drive
326
A4A1 Disk Drive Interface Board
326
Front Panel Interface
326
Graphics Controller
326
Power Supply Control
326
Rear Panel Connectivity
327
System Memory
328
System Processor
328
Processor Battery
328
SD Memory Card Slot
328
A4 Processor Assembly Troubleshooting
329
Boot-Up or Initialization Problems
329
BIOS Settings
329
A5 Disk Drive Description
330
Drive Partitioning
331
Instrument Image Recovery System
332
A5 Disk Drive Troubleshooting
333
Troubleshooting Software Related Issues
333
Reloading the Instrument Application Software
333
Disk Drive Recovery Process
334
What You will Find in this Chapter
337
A6 Power Supply Description
338
Purpose
338
Power Supply Theory of Operation
339
A6 Power Supply Basic Troubleshooting
344
(Cover On)
344
A7 Midplane Description
346
Purpose
346
A7 Midplane Assembly Troubleshooting
349
11 Front Panel/Motherboard Troubleshooting
351
What You will Find in this Chapter
351
A8 Motherboard Description
352
Purpose
352
A8 Motherboard Troubleshooting
353
A1 Front Panel Assembly
354
A1A2 Front Panel Interface Board
354
A1A3 Lcd
354
What You will Find in this Chapter
355
Block Diagrams
356
RF Lowband Path Block Diagram
357
RF Highband Path #1 Block Diagram
358
RF Highband Path #2 Block Diagram
359
Option 532, 544 Mmw RF (Low Freq) Block Diagram
360
Option 532, 544 Mmw RF (Highband Path #1) Block Diagram
361
Option 532, 544 Mmw RF (Highband Path #2) Block Diagram
362
Option 532, 544 Mmw RF (Highband Path #3) Block Diagram
363
Reference and Synthesizer Block Diagram
364
25 Mhz Bandwidth I.F. System Block Diagram
365
40 Mhz Bandwidth I.F. System Block Diagram
366
EXA Computer Block Diagram
367
13 Service and Diagnostics Menus
369
Overview
369
Controlling Access
370
Secure Service Access
371
Service Key Descriptions
375
Timebase
375
Alignments
376
Corrections
380
Band Lock
382
LO Band Lock
383
LO Control
384
Front Panel Key Test
385
Front Panel Display Test
385
Multitouch Test
385
14 Replaceable Parts
387
What You will Find in this Chapter
387
How to Order Parts
389
Replaceable Parts
390
Hardware
403
15 Assembly Replacement Procedures
441
What You will Find in this Chapter
441
Before Starting
442
Safety
442
Tools You will Need
443
Adjustments Tests after an Instrument Repair
443
Major Assembly Locations
444
Instrument Outer Case
445
Standard Instrument
445
Option PRC
447
Top Brace
450
Removal
450
Replacement
450
RF Area (Option 503, 507, 513, 526)
451
Low Band Switch - Standard Rf/Microwave Instruments
454
Low Band Switch and Coaxial Switches - Rf/Microwave Instruments with Options DP2, MPB, B40
457
Attenuators - Rf/Microwave Instruments
473
YTF Preselector - Rf/Microwave Instruments
475
RF Area (Option 532, 544)
478
Low Band Switch
481
Low Band Switch and Coaxial Switch
485
Options DP2, MPB, B40
485
Attenuators
488
YTF Preselector
490
RF Front End Assembly (Option 503, 507, 513, 526)
493
Removal
493
Replacement
494
RF Front End Assembly (Options 532, 544)
495
Removal
495
Replacement
496
Front End Control Assembly
497
Removal
497
Replacement
499
L.O. Synthesizer Assembly
500
Removal
500
Replacement
500
Rear Panel
501
Removal
501
Replacement
501
Reference Assembly
502
Removal
502
Replacement
504
Power Supply Assembly
505
Removal
505
Replacement
506
CPU Assembly
507
Removal
507
Replacement
508
A5 Solid State Drive
509
Disk Drive
509
A4A1 CPU Memory Card
511
Disk Drive Interconnect
511
Analog I.F. (Aif)/Digital I.F. (DIF) Assembly
514
Removal
514
Separate AIF/DIF Assembly
517
Replacement
518
Midplane Assembly
519
Removal
519
Replacement
521
Motherboard Assembly
522
Removal
522
Replacement
525
Fan Assembly
527
Removal
527
Replacement
529
Input Connector Assembly
530
Removal
530
Replacement
531
Front Frame Assembly
532
Removal
532
Replacement
533
Bail Handle Removal (Option PRC)
534
Front Frame Assembly Components
535
Display Assembly
541
Post-Repair Procedures
545
What You will Find in this Chapter
545
Before Starting
545
Post-Repair Procedures
546
Additional Tasks
550
17 Functional Tests
561
Functional Test
561
Performance Verification
561
Before Performing a Functional Test
562
Test Equipment
563
Displayed Average Noise Level (DANL)
566
Procedure
566
Frequency Readout Accuracy
569
Procedure
570
Second Harmonic Distortion (SHD)
572
Procedure
573
Amplitude Accuracy at 50 Mhz
575
Procedure
576
Testing Preamp Option (P03, P07, P13, P26, P32, P44)
578
Frequency Response (Flatness)
579
Procedure
580
Frequency Response (Flatness), Preamp on
583
Procedure
584
Scale Fidelity
588
Procedure
589
18 Instrument Software
591
What You will Find in this Chapter
591
Instrument Software Overview
592
Software Licensing
593
Software Updates
594
Instrument Measurement Application Software
594
89601 VSA Software
594
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