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N9030B
Keysight Technologies N9030B
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444
N903
0B P
XA Signal Analyz
er Service Guide
Assembly Replacement Procedur
es
RF Ar
ea (Options 503
, 508, 513, 526)
Figure 16-10
Low Band Switch Bracket Removal
W56
N9020-20123
T
ab
le 16-4
Item
Keysight Pa
rt Numb
er
443
445
Table of Contents
Main Page
1. Overview
5
Table of Contents
5
Overview
15
What You will Find in this Chapter
15
Keysight PXA Signal Analyzer Overview
16
Virus Information
16
Instrument Option Descriptions
17
Signal Analyzer Accessories
20
Manual Set on CD/DVD
20
50 Ohm Load
21
50 Ohm/75 Ohm Minimum Loss Pad
21
75 Ohm Matching Transformer
21
AC Probe
21
AC Probe (Low Frequency)
21
Broadband Preamplifiers and Power Amplifiers
22
RF and Transient Limiters
22
Power Splitters
22
Static Safe Accessories
22
Before You Start Troubleshooting
23
Lithium Battery Disposal
24
ESD Information
25
Protection from Electrostatic Discharge
25
Handling of Electronic Components and ESD
26
Test Equipment Usage and ESD
26
For Additional Information about ESD
26
Instrument Maintenance
27
Cleaning the Instrument
27
Cleaning Connectors
27
Battery Information
28
Service Equipment You will Need
29
Tools You will Need
29
Calibration Application Software
29
After an Instrument Repair
44
Contacting Keysight Technologies
45
Instrument Serial Numbers
48
How to Return Your Instrument for Service
49
Service Order Number
49
Original Packaging
49
Other Packaging
50
Chapter 6 Front End Controller Troubleshooting Kit
30
USB Keyboard and Mouse
31
USB Storage Device
31
Required Test Equipment List
32
2 Boot up and Initialization Troubleshooting
51
What You will Find in this Chapter
51
Check the Basics
52
PXA Instrument Boot up Process
53
Typical Instrument Boot-Up Process Flow
54
Potential Problems During Boot Process
57
Yellow Standby LED Does Not Illuminate
57
Green Power on LED Does Not Illuminate
59
Fan(S) Are Not Operating
63
No Keysight Splash Screen Displayed
65
Instrument Hangs at the Keysight Splash Screen
67
Instrument Cannot Completely Load or Run the Operating System
68
Troubleshooting a Blank Display
68
Verify LCD Backlight Functionality
69
Verify Video Signal Path Integrity
72
Video Controller / LCD Troubleshooting
72
Initializations DID Not Complete
72
Fails an Initial Alignment
73
Signal Level Verification
81
Signal Level Problem with Input Frequencies < 3.6 Ghz
81
Signal Level Problem with Input Frequencies > 3.6 Ghz
82
Instrument Messages
83
Introduction
83
Event and Condition Categories
84
Event Message Format
85
Event Queues
86
Advisory Messages
88
Event Messages
94
800, Operation Complete Event
95
700, Request Control Event
95
600, User Request Event
95
500, Power on Event
95
-400 to -499, Query Errors
95
-300 to -399, Device-Specific Errors
96
-221 Settings Conflict Errors
99
-200 to -299, Execution Errors
110
-100 to -199, Command Errors
120
Error
122
Condition Messages
123
Condition Errors 1 to 99, Calibration
123
Condition Errors 101 to 199, Measurement Integrity
128
Condition Errors 201 to 299, Signal Integrity
132
Condition Errors 301 to 399, Uncalibrated Integrity
137
Condition Errors 401 to 499, Power
141
Condition Errors 501 to 599, Frequency
142
Condition Errors 601 to 699, Error Summaries
143
Condition Errors 701 to 799, Operation
145
Condition Errors 801 to 899, Temperature
146
RF Section Troubleshooting (Rf/Microwave Analyzers)
147
What You will Find in this Chapter
147
RF Section Description
148
A9 Input Attenuator a
150
A10 Input Attenuator B
150
A11 Low Band Switch
151
A12 YTF Preselector
151
A20 YTO Assembly
151
A13 RF Front End Assembly
152
Troubleshooting
154
Quick Check to Verify the Low Band Signal Path
154
Troubleshooting a Low Band Problem
157
Quick Check to Verify High Band RF Path
163
Troubleshooting a High Band Problem
167
RF Section Troubleshooting (Millimeter-Wave Analyzers)
173
What You will Find in this Chapter
173
RF Section Description
174
A9 Input Attenuator a
176
A10 Input Attenuator B
177
A11 Low Band Switch
177
A12 YTF Preselector
177
A20 YTO Assembly
177
A13 RF Front End Assembly (Options 544, 550)
178
Troubleshooting
180
Quick Check to Verify the Low Band Signal Path
180
Troubleshooting a Low Band Problem
183
Quick Check to Verify High Band RF Path
189
Troubleshooting a High Band Problem
193
Front End Control Troubleshooting
199
What You will Find in this Chapter
199
A15 Front End Control Description
200
Purpose
200
A15 Front End Control Assembly Troubleshooting
204
Verifying Input Attenuator A, Input Attenuator B, Low Band Switch Logic and Power Supplies
205
Preselector Tune Output
214
Verifying SW3 (Option LNP Only)
216
Verifying SW1 and SW2 (Option MPB Only)
216
Verifying Microwave Preselector Bypass Switch (Option MPB)
217
Oscilloscope Test
218
Analog/Digital if Troubleshooting
225
What You will Find in this Chapter
225
A2 Analog if Assembly Description
226
A2 Analog if Assembly Theory of Operation
227
A2 Analog if Troubleshooting
230
Verifying the 322.5 Mhz Input Power
230
Verifying the 22.5 Mhz Output Power
233
Verifying the 300 Mhz lo Input Power from the A16 Reference Assembly
235
A3 Digital if Assembly Description
237
A3 Digital if Assembly Theory of Operation
238
A3 Digital if Troubleshooting
240
Verifying the 22.5 Mhz Input Power
240
Verifying the 250 Mhz if Input Power (Option B40 Only)
243
Verifying the 100 Mhz Reference Input
246
LO Synthesizer/Reference Troubleshooting
249
What You will Find in this Chapter
249
A14 lo Synthesizer Assembly Description
250
Purpose
250
A14 lo Synthesizer Theory of Operation
251
Single Loop Operation
251
Dual Loop Operation
251
Manual Selection of Single Versus Dual Loop Operation
252
Brief Description of the Major Blocks
253
A14 lo Synthesizer and A20 YTO Troubleshooting
254
Verifying the 4800 Mhz 1St lo Reference Power and Frequency Stability
256
Verifying the 100 Mhz lo Synth Reference Power and Frequency Stability
259
Verifying the 1St lo Power and Frequency
262
A16 Reference Assembly Description
266
Purpose
266
A16 Reference Assembly Troubleshooting
268
Diagnostic Leds
275
9 Cpu/Disk Drive Troubleshooting
277
What You will Find in this Chapter
277
A4 CPU Description
278
Disk Drive
278
Front Panel Interface
278
Graphics Controller
278
Power Supply Control
278
Rear Panel Connectivity
279
System Memory
279
System Processor
279
CPU Battery
279
A4 Processor Board Assembly Troubleshooting
280
Boot-Up or Initialization Problems
280
Remote Monitor Troubleshooting
280
BIOS Settings
281
A5 Disk Drive
291
Overview
292
Troubleshooting Software Related Issues
293
Reloading the X-Series Software
294
Disk Drive Recovery Process
295
Replacing the Instrument Disk Drive
297
10 Power Supply/Midplane Troubleshooting
299
What You will Find in this Chapter
299
A6 Power Supply Description
300
Purpose
300
Power Supply Theory of Operation
301
A6 Power Supply Assembly Troubleshooting
304
Supply Voltages
304
Control Inputs
305
Status Outputs
305
A7 Midplane Board Assembly Description
307
Midplane Board Connections
308
A7 Midplane Board Assembly Troubleshooting
310
Instrument Power Supply Leds and Test Points
310
Additional Power Supply Regulation
310
Instrument Secure Storage
310
Power Supply Dithering
310
11 Front Panel/Motherboard Troubleshooting
315
What You will Find in this Chapter
315
A8 Motherboard Description
316
Purpose
316
A8 Motherboard Troubleshooting
318
A1 Front Panel Assembly
319
A1A2 Front Panel Interface Board
319
A1A3 Lcd
319
A1A4 LCD Inverter Board/DC-DC Converter
319
A1A5 Front Panel USB Interface Board
319
12 Hardware Options
321
What You will Find in this Chapter
321
A25 Wideband Analog if Troubleshooting - Option B1X and B85
324
A25 Wideband Analog if Assembly Description - Option B1X and B85
324
A25 Wideband Analog if Assembly Theory of Operation - Option B1X and B85
326
A25 Wideband Troubleshooting - Option B1X and B85
327
A25 Wideband Analog if Troubleshooting - Option B1X and B85 on Page
327
A26 Wideband Digital if Troubleshooting - Option B1X and B85
329
Verify the Wideband Signal Path
329
A25 Wideband Analog if Troubleshooting - Option B2X and B5X
330
A25 Wideband Analog if Assembly Description - Option B2X and B5X
330
A25 Wideband Analog if Troubleshooting - Option B2X and B5X on Page
330
A25 Wideband Analog if Assembly Theory of Operation - Option B2X and B5X
333
A25 Wideband Analog if Assembly Troubleshooting - Option B2X and B5X
334
A26 Wideband Digital if Troubleshooting - Option B2X and B5X
337
Verify the Wideband Signal Path
337
A26 Wideband Digital if Troubleshooting - Option B2X and B5X on Page
337
Option BBA Analog I/Q Baseband Inputs Description
338
A17 LED Board
338
A18 BBIQ Interface Board
338
A19 BBIQ Main Board
339
Option RTS, Streaming
340
Description
340
Signal Analyzer Hardware Requirements
340
Software Requirements
340
Functionality Check
341
13 Block Diagrams
343
What You will Find in this Chapter
343
Block Diagrams
344
Analog if Block Diagram
356
Digital if Block Diagram
357
PXA Computer Block Diagram
358
14 Service and Diagnostics Menus
359
Overview
359
Controlling Access
359
Secure Service Access
360
Menus
361
Service Key Descriptions
366
Timebase
366
Corrections
367
Band Lock
369
LO Band Lock
370
Low Noise Path
371
LO Control
371
Align
372
15 Replaceable Parts
377
What You will Find in this Chapter
377
How to Order Parts
379
Replaceable Parts
380
Table of Contents
388
Hardware
397
W30 Cable, Coax, Ext if Out, A13J13 to Front End Control J903
409
Cable, Coax, Ext if Out, A13J13 to Front End Control J903
410
W31
415
Cable, Coax, 100 Mhz, Reference Assy J706 to lo Synthesizer J10
415
Cable, Coax, 50 Mhz Align, Front End Assy J6 to Reference Assy J705
415
W35
415
Reference Board (Option BBA)
415
Cable, Coax, 300 Mhz, Reference Assy J711 to Analog if J300
415
Cable, Coax, External Reference IN, Rear Panel to Reference Assy J704
415
Cable, Coax, 100 Mhz Ref B, Reference Assy J716 to Digital if J14
417
Cable, Coax, 250 Mhz from Wideband A-IF J102 to Digital if J15
419
Cable, Coax, 22.5 Mhz if Out, Analog if J601 to D-IF J19
419
16 Assembly Replacement Procedures
429
What You will Find in this Chapter
429
Before Starting
431
Safety
431
Tools You will Need
432
Adjustments Tests after an Instrument Repair
432
Major Assembly Locations
433
Instrument Outer Case
434
Removal
434
Replacement
435
Top Brace and Power Supply Bracket
436
Removal
436
RF Area (Options 503, 508, 513, 526)
438
Attenuators
440
Low Band Switch
443
YTF Preselector
446
Yto
449
Options MPB and LNP
451
Microwave Options MPB and LNP
451
RF Area (Options 544, 550)
473
Attenuators
475
Low Band Switch
478
YTF Preselector
482
Yto
485
Options MPB and LNP
487
Millimeter Wave Options MPB and LNP
487
RF Front End Assembly
495
Removal
495
Replacement
497
Front End Control Assembly
498
Removal
498
Replacement
499
LO Synthesizer Assembly
500
Removal
500
Replacement
501
Reference Assembly
502
Removal
502
Replacement
504
Option B1X
505
Removal
505
Replacement
506
Option BBA
507
Removal
507
Replacement
507
Midplane Board Assembly
508
Removal
508
Midplane Board Replacement
509
Rear Panel
510
Removal
510
Replacement
510
Power Supply Assembly
511
Removal
511
Replacement
511
CPU Assembly
513
Removal
513
Replacement
513
Disk Drive
515
Drive Removal and Replacement
515
Disk Drive Interconnect
519
AIF/DIF Assembly
521
Removal
521
Separate AIF/DIF Assembly
523
Replacement
524
Wideband Extension Board (Option RTS)
525
Removal
525
Replacement
527
Motherboard Assembly
528
Removal
528
Replacement
531
Fan Assembly
533
Removal
533
Replacement
536
Input Connector Assembly
537
Removal
537
Replacement
537
Front Frame Assembly
539
Removal
539
Replacement
540
Front Frame Assembly Components
541
Front Panel Cables
545
Front Panel Control Board and Shield
545
Display Assembly
547
Keyboard/Keypad
549
Post-Repair Procedures
551
What You will Find in this Chapter
551
Before Starting
551
Post-Repair Procedures
552
Additional Tasks
557
18 Functional Tests
573
Functional Test Versus
573
Performance Verification
573
Before Performing a Functional Test
574
Test Equipment
575
Displayed Average Noise Level (DANL)
578
Procedure
578
Frequency Readout Accuracy
580
Procedure
581
Second Harmonic Distortion (SHD)
582
Procedure
583
Amplitude Accuracy at 50 Mhz
585
Procedure
586
Testing Preamp Option (P03, P08, P13, P26)
588
Frequency Response (Flatness)
589
Procedure
590
Frequency Response (Flatness), Preamp on
593
Procedure
594
Scale Fidelity
598
Procedure
599
BBIQ Input Frequency Response (Option BBA Only)
602
Procedure
604
19 Instrument Software
609
What You will Find in this Chapter
609
Instrument Software Overview
610
Software Licensing
610
Software Updates
611
Instrument Measurement Application Software
611
89600 VSA Software
611
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