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Service Guide
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Keysight N9010A EXA Service Guide
2
37
Fr
ont End Control
Troubleshooting
A15 Fr
ont End Contr
ol Description
Figur
e 6-1
A15 Fr
ont View
, Physical Connector
s (EFEC)
Figure
6-2
A15 Fr
ont View
, Physical Con
nectors (stand
ar
d FEC)
236
238
Table of Contents
Main Page
Default Chapter
2
Safety Notices
2
Table of Contents
5
1 Overview
15
What You will Find in this Chapter
15
Keysight EXA Signal Analyzer Overview
16
Instrument Option Descriptions
17
Signal Analyzer Accessories
18
Manual Set on CD/DVD
18
50 Ohm Load
19
50 Ohm/75 Ohm Minimum Loss Pad
19
75 Ohm Matching Transformer
19
AC Probe
19
AC Probe (Low Frequency)
19
Broadband Preamplifiers and Power Amplifiers
19
RF and Transient Limiters
20
Power Splitters
20
Static Safe Accessories
20
Before You Start Troubleshooting
21
ESD Information
23
Protection from Electrostatic Discharge
23
Handling of Electronic Components and ESD
24
Test Equipment Usage and ESD
24
For Additional Information about ESD
24
Service Equipment You will Need
25
Calibration Application Software
25
Front End Controller Troubleshooting Kit
26
USB Keyboard and Mouse
27
USB Storage Device
27
Required Test Equipment List
28
After an Instrument Repair
41
Contacting Keysight Technologies
42
Instrument Serial Numbers
45
How to Return Your Instrument for Service
46
Service Order Number
46
Original Packaging
46
Other Packaging
47
2 Boot up and Initialization Troubleshooting
49
What You will Find in this Chapter
49
Check the Basics
50
Instrument Boot up Process
51
Typical Instrument Boot-Up Process Flow
52
Potential Problems During Boot Process
55
Yellow Standby LED Does Not Illuminate
55
Green Power on LED Does Not Illuminate
57
Fan(S) Are Not Operating
59
No Agilent/Keysight Splash Screen Displayed
61
Instrument Hangs at the Agilent/Keysight Splash Screen
62
PCI Enumeration Error
62
Instrument Cannot Completely Load or Run the Operating System
63
Troubleshooting a Blank Display
63
Verify LCD Backlight Functionality
64
Verify Video Signal Path Integrity
67
Video Controller / LCD Troubleshooting
67
Initializations DID Not Complete
67
Fails an Initial Alignment
68
Signal Level Verification
73
Signal Level Problem with Input Frequencies < 3.6 Ghz
73
Signal Level Problem with Input Frequencies > 3.6 Ghz
74
3 Instrument Messages
75
Introduction
75
Event and Condition Categories
76
Event Message Format
77
Event Queues
78
Advisory Messages
80
800, Operation Complete Event
86
700, Request Control Event
87
600, User Request Event
88
500, Power on Event
89
-400 to -499, Query Errors
90
-300 to -399, Device-Specific Errors
91
-221 Settings Conflict Errors
94
-200 to -299, Execution Errors
104
-100 to -199, Command Errors
112
Error
115
Condition Errors 1 to 99, Calibration
116
Condition Errors 6 to 34, Calibration Skipped
116
Condition Errors 36 to 64, Calibration Needed or Failed
117
Condition Errors 65 to 92, Calibration Needed (Extended)
118
Condition Errors 67 to 95, Calibration Failure (Extended)
119
Condition Errors 101 to 199, Measurement Integrity
121
Condition Errors 201 to 299, Signal Integrity
124
Condition Errors 301 to 399, Uncalibrated Integrity
129
Condition Errors 401 to 499, Power
132
Condition Errors 501 to 599, Frequency
133
Condition Errors 601 to 699, Error Summaries
135
Condition Errors 701 to 799, Operation
137
Condition Errors 801 to 899, Temperature
138
4 RF Section Troubleshooting (Rf/Microwave Analyzers)
139
What You will Find in this Chapter
139
RF Section Description
140
Purpose
140
RF Section Theory of Operation
144
Troubleshooting
148
Quick Check to Verify the Low Band Signal Path
148
Troubleshooting a Low Band Problem
152
Quick Check to Verify High Band RF Path #1
173
Troubleshooting a High Band Problem
177
High Band Preamp (P07, P13, P26)
201
High Band Mixing Equations
201
Microwave Preselector Bypass (Option MPB)
202
5 RF Section Troubleshooting (Millimeter-Wave Analyzers)
203
What You will Find in this Chapter
203
RF Section Description
204
A9 Input Attenuator a
207
A10 Input Attenuator B
207
A11 Low Band Switch
207
A12 YTF Preselector
207
A13 RF Front End Assembly (Options 532, 544)
208
Troubleshooting
210
Quick Check to Verify the Low Band Signal Path
210
Troubleshooting a Low Band Problem
213
Quick Check to Verify High Band RF Path
221
Troubleshooting a High Band Problem
226
6 Front End Control Troubleshooting
233
What You will Find in this Chapter
233
A15 Front End Control Description
234
Purpose
234
A15 Front End Control Assembly Troubleshooting
239
Verifying Input Attenuator A, Input Attenuator B, Low Band Switch Logic and Power Supplies
240
Preselector Tune Output
250
Verifying Microwave Preselector Bypass Switch (Option MPB)
251
Oscilloscope Test
251
Verifying Aux if Out, Rear Panel (Option CR3, CRP Only)
256
Standard Analyzer
256
Verifying Option CR3
257
Verifying Option CRP
258
7 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
What You will Find in this Chapter
303
8 L.O. Synthesizer/Reference Troubleshooting
304
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
317
Diagnostic Leds
326
9 Cpu/Disk Drive Troubleshooting
329
What You will Find in this Chapter
329
A4 CPU Description
330
CPU Identification
330
Disk Drive
332
Front Panel Interface
332
Graphics Controller
332
Power Supply Control
333
Rear Panel Connectivity
334
System Memory
334
System Processor
335
Processor Battery
335
SD Memory Card Slot (PC6 and PC7 Only)
335
A5 Disk Drive
336
Overview
337
Troubleshooting Software Related Issues
338
Reloading the X-Series Software
339
Disk Drive Recovery Process
340
Instrument Image Recovery System or Agilent Recovery System
340
Using the Instrument Recovery System
341
Replacing the Instrument Disk Drive
341
10 Power Supply/Midplane Troubleshooting
343
What You will Find in this Chapter
343
A6 Power Supply Description
344
Purpose
344
Power Supply Theory of Operation
345
A6 Power Supply Basic Troubleshooting
350
(Cover On)
350
A7 Midplane Description
352
Purpose
352
A7 Midplane Assembly Troubleshooting
355
11 Front Panel/Motherboard Troubleshooting
357
What You will Find in this Chapter
357
A8 Motherboard Description
358
Purpose
358
A8 Motherboard Troubleshooting
360
A1 Front Panel Assembly
361
A1A2 Front Panel Interface Board
361
A1A3 Lcd
361
A1A4 LCD Inverter Board/DC-DC Converter
361
A1A5 Front Panel USB Interface Board
361
12 Block Diagrams
363
What You will Find in this Chapter
363
Reference and Synthesizer Block Diagram
363
Block Diagrams
364
RF Lowband Path Block Diagram
365
RF Highband Path #1 Block Diagram
366
RF Highband Path #2 Block Diagram
367
Mmw RF Lowband Path Block Diagram
368
Mmw RF Highband Path #1 Block Diagram
369
Mmw RF Highband Path #2 Block Diagram
370
Mmw RF Highband Path #3 Block Diagram
371
25 Mhz Bandwidth I.F. System Block Diagram
372
40 Mhz Bandwidth I.F. System Block Diagram
373
(Serial Prefix < MY/SG/US5648)
374
REFERENCE and SYNTHESIZER BLOCK DIAGRAM (Serial Prefix < MY/SG/US5648)
374
EXA Computer Block Diagram
377
13 Service and Diagnostics Menus
379
Overview
379
Controlling Access
379
Secure Service Access, Software Versions A.01.XX through A.03.XX
380
Secure Service Access, Software Version ≥ A.04.00
380
Menus
381
Service Key Descriptions
385
Timebase
385
Corrections
386
Band Lock
388
LO Band Lock
389
LO Control
389
Align
390
14 Replaceable Parts
395
What You will Find in this Chapter
395
How to Order Parts
397
Replaceable Parts
398
Hardware
415
15 Assembly Replacement Procedures
463
What You will Find in this Chapter
463
Before Starting
464
Safety
464
Tools You will Need
465
Adjustments Tests after an Instrument Repair
465
Major Assembly Locations
466
Instrument Outer Case
467
Standard Instrument
467
Option PRC
469
Top Brace and Reference Bracket
472
Removal
472
Replacement
473
RF Area (Option 503, 507, 513, 526)
474
Low Band Switch
477
Standard Instruments with Serial Number < MY/SG50510001
477
Low Band Switch
481
Standard Instruments with Serial Number > MY/SG50510001
481
Low Band Switch and Coaxial Switches Options DP2, MPB, B40
485
Attenuators
501
YTF Preselector
503
RF Area (Option 532, 544)
506
Low Band Switch
509
Low Band Switch and Coaxial Switch Options DP2, MPB, B40
513
Attenuators
516
YTF Preselector
518
RF Front End Assembly - Options 503, 507, 513, 526
521
Removal
521
Replacement
522
RF Front End Assembly - Options 532, 544
523
Removal
523
Replacement
524
Front End Control Assembly
525
Removal
525
Replacement
527
L.O. Synthesizer Assembly
528
Removal
528
Replacement
529
Rear Panel
530
Removal
530
Replacement
530
Reference Assembly
531
Removal
531
(Serial Prefix < MY/SG/US5648)
531
Removal
533
(Serial Prefix ≥ MY/SG/US5648)
533
Replacement
535
Power Supply Assembly
536
Removal
536
Replacement
538
CPU Assembly
539
Removal
539
Replacement
541
Disk Drive
542
Rear Panel Removable Disk Drive
542
Internally Mounted Disk Drive
546
A4A1 CPU Memory Card (N9010A-PC6 and N9010A-PC7 Only)
552
Disk Drive Interconnect
553
Analog I.F. (Aif)/Digital I.F. (DIF) Assembly
555
Removal
555
Separate AIF/DIF Assembly
558
Replacement
559
Midplane Assembly
560
Removal
560
Replacement
561
Motherboard Assembly
563
Removal
563
Replacement
566
Fan Assembly
568
Removal
568
Replacement
570
Input Connector Assembly
571
Removal
571
Replacement
572
Front Frame Assembly
573
Removal
573
Replacement
574
Bail Handle Removal (Option PRC)
575
Front Frame Assembly Components - LCD
576
Front Frame Assembly Components - LED
584
16 Post-Repair Procedures
593
What You will Find in this Chapter
593
Before Starting
593
Post-Repair Procedures
594
Additional Tasks
598
17 Functional Tests
631
Functional Test Versus Performance Verification
631
Before Performing a Functional Test
632
Test Equipment
633
Displayed Average Noise Level (DANL)
636
Procedure
636
Frequency Readout Accuracy
639
Procedure
640
Second Harmonic Distortion (SHD)
642
Test Limits
642
Procedure
643
Amplitude Accuracy at 50 Mhz
645
Procedure
646
Testing Preamp Option (P03, P07, P13, P26, P32, P44)
648
Frequency Response (Flatness)
649
Procedure
650
Frequency Response (Flatness), Preamp on
653
Procedure
654
Scale Fidelity
658
Procedure
659
18 Instrument Software
663
What You will Find in this Chapter
663
Instrument Software Overview
664
Software Licensing
665
Software Updates
666
Instrument Measurement Application Software
666
89601 VSA Software
666
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