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Portable Generator
E8257D
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Keysight Technologies E8257D - Page 314
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324
E8257D/67D, E8663D PSG Sign
al Generators Servic
e Guide
Assembly Replacement
A25 20 GHz Highband Detector (Options 503, 509, 513
, 520, & 521)
Figur
e
3-40
A25 20 GHz Highband Detect
or (Options 503, 509, 513, and 520)
A25
A33
313
315
Table of Contents
Main Page
Default Chapter
5
Table of Contents
5
Troubleshooting
17
Electrostatic Discharge (ESD) Information
17
Electrostatic Discharge (ESD) Information
18
Handling of Electronic Components and ESD
19
Getting Started with Troubleshooting
20
Running Self-Test
21
A18 CPU Turn-On Test
22
Failure Symptoms
22
A2 Display Not Functioning or A2 Display Not Functioning after Turn-On
22
A18 CPU Fails to Complete the Turn-On Check
22
Checking the A18 CPU Voltages
23
Verifying the A18 CPU Turn-On Sequence
23
No Instrument Control from the Front Panel
24
Error Messages
24
CPU Data Backup
24
Self-Test Failures and Related Troubleshooting
25
Troubleshooting Assembly-Level Problems
30
Front-Panel Display Assembly Troubleshooting
30
Power Supply Troubleshooting
37
Option 008/009 Troubleshooting
54
Self-Tests 1Xx for the A13 I/Q Multiplexer
55
Self-Tests 2Xx: A5 Sampler Self-Test Errors
58
Self-Tests 3Xx: A7 Reference (Standard) Self-Test Errors (for Instruments with Serial Prefixes < US4805/MY4805)
60
Self-Tests 4Xx: A8 Output Self-Test Errors (E8267D Only)
61
Self-Tests 6Xx: A9 YIG Driver Self-Test Errors
64
Self-Tests 7Xx: A6 Frac-N Self-Test Errors
67
Self-Tests 7Xx: A45 Frac-N Self-Test Errors (Option UNY)
70
Self-Tests 9Xx: A10 ALC Self-Test Errors
71
Self-Test Errors
74
Self-Tests 11Xx: A18 CPU Self-Test Errors
76
Self-Tests 12Xx: A26 MID Self-Test Errors (E8257D)
77
Self-Tests 12Xx: A26 MID Self-Test Errors (E8267D)
83
Self-Tests 13Xx: A11 Analog/Pulse Modulation Generator Self-Test Errors
89
Self-Tests 16Xx for the A14 Baseband Generator (Option 601/602)
92
Self-Tests 22Xx: A8 Output Self-Test Errors
95
Self-Tests 24Xx: A38 Lowband Filter Self-Test Errors
97
Self-Tests 25Xx: A43 Amp Filter Self-Test Errors
98
Self-Tests 26Xx: A8 Output Self-Test Errors
100
Self-Tests 27Xx: A46 Offset Loop Self-Test Errors (Option UNY)
102
Self-Tests 28Xx: A8 Vector Output Self-Test Errors
102
Troubleshooting Unlocks
104
508 A6 Frac-N Loop Unlock
104
512 A7 Reference Unlock
105
513 1 Ghz out of Lock
105
Contents
105
514 Reference Oven Cold
105
515 10 Mhz Signal Bad
105
520 Sampler Unlocked
106
521 YO Loop Unlocked
106
625 Internal Pulse Generator Unlock
107
626 Internal Mod Source Unlock
107
Troubleshooting Unlevels
108
Troubleshoot and Correct any Unlock Problems before Troubleshooting Unleveled Problems
108
Troubleshooting Adjustment Problems
116
Troubleshooting ADC Adjustment Failures
119
Troubleshooting Performance Test Problems
120
Troubleshooting the RF Path
122
Troubleshooting RF Power Levels
122
ALC and RF Problems
122
Troubleshooting Pulse Modulation
124
Troubleshooting AT1 Attenuator
125
Troubleshooting Harmonic Spurious
127
20 Ghz Models
127
32 Ghz and 44 Ghz Models Only
129
40 Ghz Models Only
129
50 And 67 Ghz Models Only
130
Troubleshooting Non-Harmonic Spurious
132
Troubleshooting Option UNR/UNX/UNY and Instruments with Serial Prefixes ≥ US4805/MY4805 Phase Noise
133
Overall Description
134
A18 Cpu
134
A19 Power Supply
134
Input/Output Interface
135
Frequency Generation
136
Overallpsg Vector Signal Generator
145
Overallpsg Analog Signal Generator
145
Reference/Synthesis Loop Description
145
A5 Sampler (CW Mode Only)
147
A6 Frac-N
147
A7 Reference
148
A9 YIG Driver
149
A28 YIG Oscillator (YO)
150
A29 20 Ghz Doubler
150
A38 Switch Filter and A43 Lowband Amp Filter (Option 1EH)
150
Reference/Synthesis Loop
150
RF Path Description (Frequency Generation, Level Control, and Modulation)
152
A6 Frac-N
153
A8 Output
154
A12 <3.2 Ghz Fast Pulse Modulator (Option UNW)
154
A23 Lowband Coupler/Detector, A24 Highband Coupler, and A25 High Band Detector
155
A27 40 Ghz Doubler (Analog 40 Ghz Models and Vector 44 Ghz Models)
155
A29 20 Ghz Doubler
155
A30 Modulation Filter
156
A35 3-20 Ghz I/Q Modulator (Vector Models Only)
156
A36 Quadraplier (Analog Models > 40 Ghz)
157
A37 44 Ghz Upconverter (Vector Models > 20 Ghz)
157
ALC Loop
158
Modulation (Option UNT-AM, FM, ΦM, UNU-Standard Pulse, and UNW-Fast Pulse)
159
Digital Modulation
160
Approximate Device Gains and Losses
162
Vector Low Band RF Path
170
Self-Test Overview
171
How Self-Test Works
171
Independent Failures
171
Contacting Keysight Technologies
173
Keysight Sales and Service Offices
175
Packaging a Signal Generator for Return
175
Replaceable Parts
177
Ordering Information
177
Order Parts Fast
177
Frequency, Hardware, and Personality Options
178
Assemblies
180
Assemblies from the Inside Front Panel View
186
Assemblies from a Top View
188
Assemblies from a Microcircuit Deck View
193
Assemblies from a Bottom View
196
A18BT1 Lithium Battery
198
Cables
199
Hardware
210
Front Panel View
211
Disassembled Front Panel View
214
Disassembled Rear Panel View
216
Disassembled A32 10 Mhz Crystal Oscillator
219
Prefixes ≥ US4805/MY4805)
219
Disassembled A32 10 Mhz Crystal Oscillator (Option UNR/UNX/UNY and Instruments with Serial Prefixes ≥ US4805/MY4805)
219
Disassembled AT1 90Db/115Db Attenuator View (Option 1E1)
221
Disassembled A24 20Ghz/40Ghz Highband Coupler and A25B Highband Detector Bias Board (Options 503, 509, 513, 520, and 540)
222
Disassembled A24 20Ghz Highband Coupler and A25B Highband Detector Bias Board (Option 521)
223
Disassembled A24 50Ghz Highband Coupler and A25B Highband Detector Bias Board
224
Disassembled A24 67Ghz Highband Coupler and A25B Highband Detector Bias Board
225
Microcircuit Interface Deck Top View
226
Main Chassis and MID Bottom View
227
MM RF Output Connector (Option 567 Only)
230
2.4 MM RF Output Connector
231
APC 3.5 RF Output Connector (Options 513 and 520 Only)
232
Type-N RF Output Connector (Option 1ED Models Only)
233
Main Chassis with Inside Cover and Right-Side Support Wall
234
Outer and Inner Instrument Covers and Associated Parts
236
Contents
226
Miscellaneous
238
Accessories
239
Documentation
239
Electrostatic Discharge (ESD) Protective Supplies
239
Abbreviations Used in Part Descriptions
241
Assembly Replacement
243
Before You Replace an Assembly
243
Assemblies that You Can Replace
244
Outer Instrument Cover
248
Tools Required
248
Removal Procedure
248
Replacement Procedure
248
Inner Instrument Cover
250
Tools Required
250
Removal Procedure
250
Replacement Procedure
250
Front Panel
252
Tools Required
252
Removal Procedure
252
Replacement Procedure
254
A1 Keyboard
256
Tools Required
256
Removal Procedure
256
Replacement Procedure
256
A2 Display
259
Tools Required
259
Removal Procedure
259
Replacement Procedure
259
A2DS1 Display Backlight (Serial Number Prefix < US/MY5XXX3XXX Only)
262
Tools Required
262
Removal Procedure
262
Replacement Procedure
262
A3 Power Switch
264
Tools Required
264
Removal Procedure
264
Replacement Procedure
264
A4 Inverter (Serial Number Prefix < US/MY5XXX3XXX Only)
267
Tools Required
267
Removal Procedure
267
Replacement Procedure
267
A5 Sampler, A6 Frac-N, A7 Reference
269
(Standard and Option UNR/UNX/UNY), A8 Output
269
A45 Frac-N and A46 Offset
269
Tools Required
269
Removal Procedure
269
Replacement Procedure
269
A9 YIG Driver
271
Tools Required
271
Removal Procedure
271
Replacement Procedure
271
A10 Alc
273
Tools Required
273
Removal Procedure
273
Replacement Procedure
273
A11 Pulse/Analog Modulation Generator
275
Tools Required
275
Removal Procedure
275
Replacement Procedure
275
A12 Pulse Modulator Board
277
Tools Required
277
Removal Procedure
277
Replacement Procedure
277
A13 I/Q MUX (E8267D Standard or with Option 015) (Serial Prefixes <US4722/MY4722)
279
Tools Required
279
Removal Procedure
279
Replacement Procedure
279
A13 I/Q MUX (E8267D Standard or with Option H16/016) (Serial Prefixes ≥ US4722/MY4722)
281
Tools Required
281
Removal Procedure
281
Replacement Procedure
282
A14 Baseband Generator (E8267D Only)
283
Tools Required
283
Removal Procedure
283
Replacement Procedure
283
A17 Baseband Generator Interface (E8267D Only)
285
Tools Required
285
Removal Procedure
285
Replacement Procedure
285
Contents
287
A18 Cpu
287
Tools Required
287
Removal Procedure
287
Replacement Procedure
287
A18Bt1
289
Tools Required
289
Removal Procedure
289
Replacement Procedure
289
A19 Power Supply
291
Tools Required
291
Removal Procedure
291
Replacement Procedure
292
A20 SMI (Source Module Interface)
294
Tools Required
294
Removal Procedure
294
Replacement Procedure
294
A21 Rear-Panel Interface
296
Tools Required
296
Removal Procedure
296
Replacement Procedure
296
A22 Line Module
298
Tools Required
298
Removal Procedure
298
Replacement Procedure
298
A23 Lowband Coupler/Detector
300
Tools Required
300
Removal Procedure
300
Replacement Procedure
300
A24 20 Ghz Highband Coupler (Options 503, 509, 513, 520, and 521)
302
Tools Required
302
Removal Procedure
302
Replacement Procedure
303
A24 40 Ghz Highband Coupler (Option 540)
307
Tools Required
307
Removal Procedure
307
Replacement Procedure
307
A24 50 Ghz Highband Coupler (Options 532 and 544)
309
Tools Required
309
Removal Procedure
309
Replacement Procedure
309
A24 67 Ghz Highband Coupler (Options 550 and 567)
311
Tools Required
311
Removal Procedure
311
Replacement Procedure
311
A25 20 Ghz Highband Detector (Options 503, 509, 513, 520, & 521)
313
Tools Required
313
Removal Procedure
313
Replacement Procedure
313
A25 40 Ghz Highband Detector (Option 540)
316
Tools Required
316
Removal Procedure
316
Replacement Procedure
316
A25 50 Ghz Highband Detector (Options 532 and 544)
318
Tools Required
318
Removal Procedure
318
Replacement Procedure
318
A25 67 Ghz Highband Detector (Options 550 and 567)
320
Tools Required
320
Removal Procedure
320
Replacement Procedure
320
A25B Highband Detector Bias Board
322
Tools Required
322
Removal Procedure
322
Replacement Procedure
322
A26 MID (Microcircuit Interface Deck)
324
Tools Required
324
Removal Procedure
324
Replacement Procedure
325
A27 40 Ghz Doubler (Option 540)
327
Tools Required
327
Removal Procedure
327
Replacement Procedure
327
A27 40 Ghz Doubler (Options 532 and 544 Only)
329
Tools Required
329
Removal Procedure
329
Replacement Procedure
329
A28 YIG Oscillator
331
Tools Required
331
Removal Procedure
331
Replacement Procedure
331
A29 20 Ghz Doubler
333
Tools Required
333
Removal Procedure
333
Replacement Procedure
333
A30 Modulation Filter (Standard and Option 1EA/1EU)
335
Tools Required
335
Removal Procedure
335
Replacement Procedure
336
A31 Motherboard (E8257D & E8663D)
338
Tools Required
338
Removal Procedure
338
Replacement Procedure
339
A31 Motherboard (E8267D)
341
Tools Required
341
Removal Procedure
341
Replacement Procedure
342
Contents
344
A32 10 Mhz Crystal Oscillator
344
Tools Required
344
Removal Procedure
344
Replacement Procedure
344
A33 6Db PAD (Options 503, 509, 513, 520, and 521)
346
Tools Required
346
Removal Procedure
346
Replacement Procedure
346
A33 10Db PAD (Options 532 and 544)
348
Tools Required
348
Removal Procedure
348
Replacement Procedure
348
Rear Panel (Standard)
350
Tools Required
350
Removal Procedure
350
Replacement Procedure
351
Rear Panel (Option 1EM)
353
Tools Required
353
Removal Procedure
353
Replacement Procedure
355
A34 Internal Hard Drive (E8267D Only - Discontinued)
357
Tools Required
357
Removal Procedure
357
Replacement Procedure
357
A35 3-20 Ghz I/Q Modulator (E8267D Only - Standard or with Option 015)
359
Tools Required
359
Removal Procedure
359
Replacement Procedure
359
A35 3-20 Ghz I/Q Modulator (E8267D Only - Standard or with Option H16/016) (Serial Prefixes ≥ US4722/MY4722)
361
Tools Required
361
Removal Procedure
361
Replacement Procedure
361
A36 Quadraplier (Options 550 and 567)
363
Tools Required
363
Removal Procedure
363
Replacement Procedure
363
A37 Upconverter (E8267D Only)
365
Tools Required
365
Removal Procedure
365
Replacement Procedure
365
A38 Lowband Switch Filter
367
Tools Required
367
Removal Procedure
367
Replacement Procedure
367
A39 Directional Sweep Coupler
369
Tools Required
369
Removal Procedure
369
Replacement Procedure
369
A40 Compact Flash Drive Assembly
371
Tools Required
371
Removal Procedure
371
Replacement Procedure
371
A41 Flash Drive Door Assembly
373
Tools Required
373
Removal Procedure
373
Replacement Procedure
373
A42 20 Ghz Power Amp (Option 521)
375
Tools Required
375
Removal Procedure
375
Replacement Procedure
375
A43 Lowband Amp Filter
377
Tools Required
377
Removal Procedure
377
Replacement Procedure
377
A44 Scan Modulation Bias Adapter (E8257D-520 and E8663D Only)
379
Tools Required
379
Removal Procedure
379
Replacement Procedure
379
AT1 90 Db Attenuator
381
Tools Required
381
Removal Procedure
381
Replacement Procedure
381
AT1 115 Db Attenuator
383
Tools Required
383
Removal Procedure
383
Replacement Procedure
383
AT1 90 Db Attenuator (Option 1EM)
385
Tools Required
385
Removal Procedure
385
Replacement Procedure
385
AT1 115 Db Attenuator (Option 1EM)
387
Tools Required
387
Removal Procedure
387
Replacement Procedure
387
B1 Fan
389
Tools Required
389
Removal Procedure
389
Replacement Procedure
389
Post-Repair Procedures
391
Post-Repair Procedures Matrix
392
CPU Configuration
405
Contents
409
Safety and Regulatory
409
General Safety Considerations
410
Lithium Battery Disposal
411
Assistance
411
Certification
411
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