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215
4 Troubleshooting the Analyzer
This chapter provides information that is useful when starting to
troubleshoot an analyzer failure. It provides procedures for
troubleshooting common failures and isolating problems in the
analyzer.
- Service Guide 1
- Certification 3
- Regulatory Information 3
- Warranty 3
- Limitation of Warranty 4
- Exclusive Remedies 4
- Assistance 4
- Description 6
- Documentation Options 8
- How to Order Guides 8
- How to Use This Guide 8
- Contents 10
- Introduction 13
- Repair Service Guide 14
- Service Guide Organization 15
- Analyzer Description 16
- Firmware Revision Date 18
- Reliability Considerations 19
- Adjustment Procedures 21
- Test Equipment You Will Need 23
- Adjustment 24
- Gain for Option 010 or 28
- 30 Chapter1 30
- 1a. Display 33
- 34 Chapter2 34
- 1b. Display 36
- Procedures 37
- Centering 38
- Horizontal Hold 39
- Vertical Hold 39
- Vertical Size 40
- Vertical Linearity 40
- Brightness and Contrast 41
- 2. Sampler Match 42
- Chapter 2 43 43
- 3. 10 MHz Reference 44
- 48 Chapter2 48
- GATE TIME, 10, GATE TIME 48
- Crystal Alignment 50
- LC Alignment 53
- Final LC Centering 55
- Final BW Amplitude Check 56
- 6. Cal Attenuator Error 58
- 1 dB Step Check 60
- 4 and 8 dB Step Error 61
- 7. Log and Linear Amplifier 63
- 66 Chapter2 66
- Equipment 70
- Mixer Bias DAC Initialization 73
- 12. Second Converter 79
- Second Converter Bandpass 81
- Second Mixer Match 82
- Swept Bandpass Check 83
- 84 Chapter2 84
- Bandpass 85
- Option 713 86
- 600 MHz Adjustment 88
- Characterization 88
- Chapter 2 89 89
- 90 Chapter2 90
- Chapter 2 91 91
- 14. Comb Generator 92
- Frequency 94
- Output Power 95
- 15. Frequency Response of 96
- Chapter 2 97 97
- 100 Chapter2 100
- Making Adjustments 100
- ⇓ (step down) and 103
- 8593E/94E/95E/96E, and 8594Q 106
- Equipment Required 107
- Procedure 107
- 17. Time and Date 124
- data key 125
- Option 010 or 011 126
- 010 or 011 131
- 134 Chapter2 134
- 138 Chapter2 138
- Option 009 or 010 139
- +12 dBm 141
- 144 Chapter2 144
- Chapter 2 147 147
- Fcenter = (F1 + F2)/2 149
- Accuracy for Option 050 151
- Log Fidelity 153
- Chapter 2 159 159
- Accuracy for Option 051 160
- Chapter 2 175 175
- 176 Chapter2 176
- Making Adjustments: If 177
- 3335A Source Not Available 177
- Before You Start 178
- 6a. Cal Attenuator Error 179
- 2 dB Check 182
- 4 dB Step Check 183
- 8 dB Step Check 183
- 7a. Log and Linear Amplifier 186
- Log Fidelity Adjustment 188
- Chapter 2a 189 189
- 15a. Frequency Response of 191
- (75 Ω input) 192
- ⇓ (step down) 196
- Backing Up and Reloading 199
- Correction Constants 199
- Chapter 3 201 201
- Analyzer Initialization 204
- Set the default configuration 205
- Reset the power-on units 206
- 8595E, or 8596E Band 1 211
- 8596E Band 2 212
- Band 4 (Option 026) 213
- _______________________ 214
- Troubleshooting the Analyzer 215
- Replacement assemblies 217
- After an analyzer repair 218
- Chapter 4 219 219
- PRESET is pressed 220
- If the line fuse has blown 222
- If the fan is not operating 223
- 224 Chapter4 224
- Chapter 4 225 225
- 226 Chapter4 226
- Chapter 4 227 227
- If the display is blank 228
- Chapter 4 229 229
- 230 Chapter4 230
- Chapter 4 231 231
- 232 Chapter4 232
- Chapter 4 233 233
- CAL AMPTD 233
- Chapter 4 237 237
- FREQ CAL 237
- Routines 238
- 240 Chapter4 240
- 2V REF DETECTOR 240
- Chapter 4 241 241
- GND REF 241
- Verify the main coil driver 242
- Verify the FM coil driver 243
- Verify the sweep ramp 245
- Chapter 4 247 247
- −10V REF DETECTOR 247
- Verify the YTF driver 248
- Board Assembly 249
- Perform a free-run check 250
- 252 Chapter4 252
- IF Section Information 255
- IF Power-Level Measurement 256
- Chapter 5 257 257
- 258 Chapter5 258
- CORRECT ON OFF 258
- Chapter 5 259 259
- 262 Chapter5 262
- Assembly 266
- Chapter 5 267 267
- 268 Chapter5 268
- Chapter 5 269 269
- 270 Chapter5 270
- Chapter 5 271 271
- 276 Chapter5 276
- Chapter 5 277 277
- 278 Chapter5 278
- Chapter 5 279 279
- 280 Chapter5 280
- After an Analyzer Repair 283
- 6a. 8590L, 8591C, and 8591E 284
- Connector Pin-Out Information 285
- Replacing Major Assemblies 293
- Instrument Cover 296
- Replacement 297
- A1 Front-Frame Assembly 298
- Chapter 7 299 299
- Replacing Major Assemblies 299
- 300 Chapter7 300
- A2 Display 303
- 304 Chapter7 304
- Chapter 7 305 305
- Chapter 7 307 307
- RF Assembly 308
- Chapter 7 309 309
- A3 Front-End Assembly 311
- 312 Chapter7 312
- Chapter 7 313 313
- 314 Chapter7 314
- Chapter 7 315 315
- Chapter 7 317 317
- A7 Analog Interface Assembly 318
- Chapter 7 319 319
- Chapter 7 321 321
- A8 Power Supply 322
- Chapter 7 323 323
- 324 Chapter7 324
- Chapter 7 325 325
- 326 Chapter7 326
- Chapter 7 327 327
- Chapter 7 329 329
- Memory Board Assembly 330
- Chapter 7 331 331
- 332 Chapter7 332
- 336 Chapter7 336
- A16A1BT1 Battery 337
- 338 Chapter7 338
- Chapter 7 339 339
- Chapter 7 341 341
- A25 Counter-Lock Assembly 342
- Chapter 7 343 343
- 344 Chapter7 344
- Rear-Frame Assembly 346
- Chapter 7 347 347
- 348 Chapter7 348
- If You Have A Problem 349
- 350 Chapter8 350
- Check the Basics 351
- Service Offices 352
- Chapter 8 353 353
- 354 Chapter8 354
- Chapter 8 355 355
- 356 Chapter8 356
- Diagrams 357
- 8591C Spectrum Analyzers 359
- A5 Second Converter 360
- A9 Third Converter 360
- 10 MHz Frequency Reference 361
- A25 Counterlock 361
- A25A1 Sampler 362
- A6 YIG Tuned Oscillator (YTO) 363
- A7 Analog Interface 363
- 364 Chapter9 364
- RF and LO Section 365
- 8595E, and 8596E Analyzers 365
- Chapter 9 367 367
- A9 Third Converter Assembly 368
- A25 Counterlock Assembly 369
- Chapter 9 371 371
- Output Amplifier 372
- Bias Board 372
- IF Section 373
- A12 Amplitude Control 374
- A13 Bandwidth Filter 374
- A14 Log Amplifier 375
- 376 Chapter9 376
- A130 Narrow Bandwidth 378
- Chapter 9 379 379
- 380 Chapter9 380
- 382 Chapter9 382
- 384 Chapter9 384
- 386 Chapter9 386
- 388 Chapter9 388
- 390 Chapter9 390
- 392 Chapter9 392
- Analyzer Options and Block 393
- 394 Chapter10 394
- Table 10-1 Option Table 395
- Option Descriptions 397
- Shoulder Strap (Option 015) 398
- Shoulder Strap (Option 016) 398
- Connector (Option 026) 399
- Connector (Option 027) 399
- 400 Chapter10 400
- (Option 052) 401
- (Option 053) 401
- 402 Chapter10 402
- CT2 Demodulator (Option 110) 403
- DECT Demodulator (Option 112) 403
- Noise Figure (Option 119) 403
- 404 Chapter10 404
- (Option 163) 405
- DVB-C (Option 190) 405
- 406 Chapter10 406
- Chapter 10 407 407
- 8591E Option 010, 011 408
- 8596E Option 010 410
- 412 Chapter10 412
- Chapter 10 413 413
- 414 Chapter10 414
- Chapter 10 415 415
- SGL SWP on the 8594A 415
- 416 Chapter10 416
- If there is no output power 418
- Option 009 419
- 420 Chapter10 420
- LINE switch to on 420
- Troubleshooting Tree 421
- PREAMP ON 432
- Chapter 10 433 433
- Passcode 434
- Menu 1 of 3 435
- Menu 2 of 3 436
- Menu 3 of 3 437
- Diagnostic Data 438
- Chapter 10 439 439
- Downconverter Test 440
- IQ Constellation 442
- 8591C & 8591E ONLY 443
- 444 Chapter10 444
- 446 Chapter10 446
- 448 Chapter10 448
- 450 Chapter10 450
- HARDWARE BLOCK DIAGRAM 451
- 8594Q OPTION 190 451
- 452 Chapter10 452
- Major Assembly and Cable 453
- Locations 453
- 454 Chapter11 454
- Chapter 11 455 455
- 456 Chapter11 456
- Chapter 11 457 457
- 458 Chapter11 458
- Figure 11-6 459
- 460 Chapter11 460
- Chapter 11 461 461
- 462 Chapter11 462
- Chapter 11 463 463
- Analyzers 464
- Chapter 11 465 465
- 466 Chapter11 466
- Chapter 11 467 467
- 468 Chapter11 468
- 010 and 011) 469
- 470 Chapter11 470
- Chapter 11 471 471
- 472 Chapter11 472
- Figure 11-22 473
- 474 Chapter11 474
- Chapter 11 475 475
- (Options 009 and 010) 476
- Chapter 11 477 477
- 478 Chapter11 478
- Chapter 11 479 479
- Chapter 11 483 483
- 484 Chapter11 484
- Replaceable Parts 485
- Ordering Information 487
- Direct Mail-Order System 488
- (U.S. Only) 488
- Abbreviations 490
- Chapter 12 491 491
- 492 Chapter12 492
- Chapter 12 493 493
- 494 Chapter12 494
- Chapter 12 495 495
- Table 12-6 Replaceable Cables 511
- Ordering CLIPs 521
- Front-End Assembly 534
- Generator Assembly 535
- Front Frame Assembly 535
- 538 Chapter12 538
- 540 Chapter12 540
- 542 Chapter12 542
- 544 Chapter12 544
- 546 Chapter12 546
- 548 Chapter12 548
- 550 Chapter12 550
- 552 Chapter12 552
- Softkey Descriptions 553
- Softkey Functions 554
- Chapter 13 555 555
- 556 Chapter13 556
- −37 Hz Passcode 557
- −2001 Hz Passcode 557
- Entering a Passcode 557
- Chapter 13 559 559
- CAL TIMEBASE.Analyzers 559
- Detector 560
- Amp Cor Amplitude Correction 562
- ANALYZER GAINS Analyzer Gains 562
- AUXB Auxiliary B 562
- BINARY SPAN Binary Span 563
- CAL Calibration Key 563
- CAL AMPTD Calibrate Amplitude 564
- Chapter 13 565 565
- CAL FETCH Calibration Fetch 566
- CAL FREQ Calibrate Frequency 567
- 568 Chapter13 568
- ELATED SOFTKEYS CAL AMPTD 569
- CAL MXR Calibrate Mixer 570
- CAL STORE Calibration Store 571
- ELATED SOFTKEYS CAL STORE 572
- CAL YTF Calibrate YTF 574
- CONF TEST Confidence Test 575
- 576 Chapter13 576
- Chapter 13 577 577
- 3 dB POINTS softkey 577
- Position 579
- DACS DACs 580
- . They are used on the A16 582
- SOFTKEYS 583
- 584 Chapter13 584
- ELATED SOFTKEYS CAL FREQ 587
- DROOP Droop 588
- EDIT FLATNESS Edit Flatness 589
- EXECUTE TITLE Execute Title 590
- EXIT Exit 590
- FINE TUNE DAC Fine Tune DAC 590
- FLATNESS DATA Flatness Data 591
- FM COIL DRIVE FM Coil Drive 591
- FM GAIN FM Gain 592
- ELATED SOFTKEYS DEMOD 593
- FM OFFSET FM Offset 594
- FM SPAN FM Span 595
- 596 Chapter13 596
- FRQ DISC NORM OFF Frequency 598
- Discriminator Normal/Off 598
- IDNUM Identification Number 598
- INIT FLT Initialize Flatness 599
- 26.5 GHz 600
- MAIN COIL DR Main-Coil Drive 601
- MAIN SPAN Main Span 602
- MIXER BIAS DAC Mixer-Bias DAC 602
- PRESEL DAC Preselector DAC 603
- AMPTD UNITS, dBmV 607
- AMPTD UNITS, Volts 607
- STORE FLATNESS Store Flatness 608
- STP GAIN ZERO Step-Gain Zero 608
- SWEEP RAMP Sweep Ramp 608
- SWEEP TIME DAC Sweep-Time DAC 609
- YTF DRIVER YTF Driver 610
- YTF TUNE FINE YTF Tune Fine 611
- YTF SPAN YTF Span 612
- Analyzer Messages 613
- What's in This Chapter 614
- ADC-GND FAIL (H) 615
- Chapter 14 617 617
- REF DETECTOR 617
- ADC-TIME FAIL (H) 618
- ADC-2V FAIL (H) 618
- 620 Chapter14 620
- 2v REF DETECTOR 620
- CAL:_ _ _ (M) 621
- CAL: cannot execute CALAMP 621
- CAL: DATA NOT STORED 622
- CAL AMP NEEDED (U)(H) 622
- CAL: FM SPAN SENS FAIL (H) 622
- CAL: GAIN FAIL (H) 623
- CAL: MAIN COIL SENSE FAIL (H) 624
- CAL: NBW gain failed (H) 625
- CAL: NBW width failed (H) 625
- CAL: PASSCODE NEEDED (M) 625
- CAL: RES BW AMPL FAIL (H) 626
- CAL SIGNAL NOT FOUND (U)(H) 626
- CAL: SPAN SENS FAIL (H) 627
- CAL: USING DEFAULT DATA (M) 628
- CAL YTF FAILED (U)(H) 628
- CAL: ZERO FAIL (H) 628
- CAL FREQ data (U) 629
- Cannot reach N dB points (U) 629
- Check trigger input (U) 629
- COMB SIGNAL NOT FOUND (U)(H) 630
- COMMAND ERROR:_ _ _ (U) 631
- CONF TEST FAIL (U)(H) 631
- FAIL: XXXX XXXXXXXXXX (H) 632
- The 10-Digit Failure Code 634
- File type incompatible (U) 637
- FREQ UNCAL (U) (H) 638
- Related Assemblies 639
- Troubleshooting Hints 639
- 640 Chapter14 640
- INVALID FILENAME_ _ _(U) 641
- INVALID FILE: NO ROOM (U) 641
- INVALID IB ADRS/OPERATION (U) 641
- INVALID TRACE: _ _ _ (U) 644
- INVALID TRACE NAME: _ _ _ (U) 644
- INVALID TRACENAME: _ _ _ (U) 645
- INVALID VARDEF: _ _ _ (U) 645
- LOST SIGNAL (U) 645
- LO UNLVL (U)(H) 646
- Marker Count Widen RES BW (U) 646
- MEAS UNCAL (U) 647
- No card found (U) 647
- No points defined (U) 647
- MIXER BIAS CAL FAILED 647
- OVEN COLD (M) 648
- PARAMETER ERROR: _ _ _ (U) 648
- PASSCODE NEEDED (U) 648
- POS-PK FAIL (H) 649
- REF UNLOCK (M)(H) 649
- 650 Chapter14 650
- RES-BW NOISE FAIL (H) 651
- RES-BW SHAPE FAIL (H) 651
- RF PRESEL ERROR (H) 652
- RF PRESEL TIMEOUT (H) 652
- SAMPLE FAIL (H) 653
- SETUP ERROR (U) 653
- SIGNAL CLIPPED (U) 653
- SMPLR UNLCK (U)(H) 654
- SOFTKEY OVFL (U) 654
- SRQ _ _ _ (M) 654
- STEP GAIN/ATTEN FAIL (H) 654
- SYMTAB EMPTY (U) 655
- TABLE FULL (U) 655
- TG SIGNAL NOT FOUND (U) 656
- TG UNLVL (U)(H) 656
- VID-BW FAIL (H) 658
- YTF is not available (U) 658
- Waiting for gate input…(U) 658
- Service Equipment and Tools 659
- Static-Safe Accessories 660
- Recommended Test Equipment 661
- Recommended Service Tools 662
- 664 Chapter15 664
- 666 Chapter15 666
- Safety and Regulatory 667
- Information 667
- Safety Considerations 668
- Safety Symbols 668
- Instrument Markings 669
- General Safety Considerations 670
- 672 Chapter16 672
- Test Equipment Usage and ESD 673
- 674 Chapter16 674
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