Table of Contents
iv
2715 Spectrum Analyzer Service Manual
Figure 3-17: Timing Diagram for a Typical Write to the Control
Register
3-50
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3-18: Timing Diagram of a Typical Sweep for the Horizontal
Tracking A/D Converter
3-51
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3-19: Sequence of Events When Writing Data to the
Waveform Memory
3-54
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 3-20: How a Vertical Scan is Performed
3-56
. . . . . . . . . . . . . . . . .
Figure 3-21: The Display of a Single Vector of a Waveform
3-57
. . . . . . .
Figure 3-22: A Single Column of Character Dots
3-57
. . . . . . . . . . . . . . . .
Figure 3-23: Vertical Output Integrator
3-58
. . . . . . . . . . . . . . . . . . . . . . .
Figure 3-24: Microprocessor Block Diagram
3-61
. . . . . . . . . . . . . . . . . . .
Figure 3-25: Microprocessor Counter System (CPU)
3-62
. . . . . . . . . . . . .
Figure 3-26: Front Panel Block Diagram
3-83
. . . . . . . . . . . . . . . . . . . . . .
Figure 3-27: How the Debounce Circuit Reacts to Key Closure
3-85
. . . .
Figure 3-28: Power Supply Primary Block Diagram
3-88
. . . . . . . . . . . . .
Figure 3-29: Display Amplifiers Block Diagram
3-91
. . . . . . . . . . . . . . . .
Figure 4-1: 3rd Order IM Test Setup (25 MHz Separation)
4-17
. . . . . . .
Figure 4-2: Harmonic Distortion Test Equipment Setup
4-18
. . . . . . . . . .
Figure 4-3: 1 dB Compression Point Test Setup
4-20
. . . . . . . . . . . . . . . . .
Figure 4-4: Accessory Connector (J103)
4-22
. . . . . . . . . . . . . . . . . . . . . . .
Figure 4-5: Test Equipment Setup for Checking Return Loss
4-28
. . . . .
Figure 4-6: Test Signal on Video Line 17
4-32
. . . . . . . . . . . . . . . . . . . . . . .
Figure 4-7: Video Gating Check Waveform (NTSC Illustrated)
4-34
. . . .
Figure 4-8: IF Gating Check Waveform (NTSC Illustrated)
4-35
. . . . . .
Figure 5-1: Instrument Bottom View
5-5
. . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5-2: Display Storage Board Adjustment Locations
5-13
. . . . . . . .
Figure 5-3: Properly Adjusted Checkerboard Pattern
5-14
. . . . . . . . . . .
Figure 5-4: Locked 2nd LO and 5 MHz Bandpass Filter
Adjustments
5-16
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5-5: Phase Lock CFC Module Adjustment and Test Point
Locations
5-17
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 5-6: Log Board Adjustment and Test Point Locations
5-21
. . . . .
Figure 5-7: CAL Level Adjustment on Reference Oscillator Board
5-26
.
Figure 5-8: RF Option Adjustment Locations
5-28
. . . . . . . . . . . . . . . . . .
Figure 5-9: Variable Resolution Module Adjustment Locations
5-29
. . . .
Figure 5-10: Flatness adjustment test setup (all instruments
except Option 50)
5-34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Summary of Contents for 2715
Page 4: ......
Page 16: ...Service Safety Summary xii 2715 Spectrum Analyzer Service Manual ...
Page 152: ...Theory of Operation 3 94 2715 Spectrum Analyzer Service Manual ...
Page 254: ...Adjustment Procedures 5 66 2715 Spectrum Analyzer Service Manual ...
Page 292: ...Options 7 4 2715 Spectrum Analyzer Service Manual ...
Page 436: ...Replaceable Electrical Parts 8 144 2715 Spectrum Analyzer Service Manual ...
Page 438: ...Diagrams 9 2 2715 Spectrum Analyzer Service Manual ...
Page 464: ...Replaceable Mechanical Parts 10 26 2715 Spectrum Analyzer Service Manual ...
Page 468: ......
Page 474: ...Service Safety Summary vi 2715 Spectrum Analyzer Service Manual ...
Page 481: ...9 5 2715 Spectrum Analyzer Service Manual 2715 1 RF ATTENUATOR A18 ...
Page 483: ...9 7 2715 Spectrum Analyzer Service Manual 1 1ST CONVERTER A16A1 2715 ...
Page 485: ...2715 Spectrum Analyzer Service Manual 9 9 1 RF INPUT A16A2 2715 ...
Page 487: ...9 11 2715 Spectrum Analyzer Service Manual 1 YIG BUFFER AMPLIFIER A17 2715 ...
Page 489: ...9 13 2715 Spectrum Analyzer Service Manual 2715 1 1ST LO INTERFACE A19A1 ...
Page 490: ...2715 Spectrum Analyzer Service Manual 9 14 ...
Page 491: ...9 15 2715 Spectrum Analyzer Service Manual 2715 2 1ST LO A19 ...
Page 493: ...9 17 2715 Spectrum Analyzer Service Manual Figure 1 9 A12A1 Phaselock CFC back ...
Page 496: ...2715 Spectrum Analyzer Service Manual 9 20 ...
Page 497: ...9 21 2715 Spectrum Analyzer Service Manual 2715 PHASELOCK CFC A12A1 1 ...
Page 498: ...2715 Spectrum Analyzer Service Manual 9 22 ...
Page 499: ...9 23 2715 Spectrum Analyzer Service Manual 2715 2 PHASELOCK CFC A12A1 ...
Page 500: ...2715 Spectrum Analyzer Service Manual 9 24 ...
Page 501: ...9 25 2715 Spectrum Analyzer Service Manual PHASELOCK CFC A12A1 2715 3 ...
Page 502: ...2715 Spectrum Analyzer Service Manual 9 26 ...
Page 504: ...2715 Spectrum Analyzer Service Manual 9 28 ...
Page 506: ...2715 Spectrum Analyzer Service Manual 9 30 ...
Page 507: ...9 31 2715 Spectrum Analyzer Service Manual 2715 6 PHASELOCK CFC POWER SUPPLY A12A1 ...
Page 509: ...9 33 2715 Spectrum Analyzer Service Manual 2715 1 HF VCO A12A2 ...
Page 511: ...9 35 2715 Spectrum Analyzer Service Manual LF VCO A12A3 1 2715 ...
Page 514: ...2715 Spectrum Analyzer Service Manual 9 38 ...
Page 515: ...9 39 2715 Spectrum Analyzer Service Manual SIGNAL INTERCONNECT RF MOTHER BOARD A14 0 2715 ...
Page 516: ...2715 Spectrum Analyzer Service Manual 9 40 ...
Page 517: ...9 41 2715 Spectrum Analyzer Service Manual RF MOTHER A14 1 2715 ...
Page 518: ...2715 Spectrum Analyzer Service Manual 9 42 ...
Page 519: ...9 43 2715 Spectrum Analyzer Service Manual 2 RF MOTHER A14 2715 ...
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Page 521: ...9 45 2715 Spectrum Analyzer Service Manual 3 RF MOTHER A14 2715 ...
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Page 523: ...9 47 2715 Spectrum Analyzer Service Manual 2715 4 RF MOTHER A14 68 1 R213 ...
Page 526: ...2715 Spectrum Analyzer Service Manual 9 50 ...
Page 527: ...2715 Spectrum Analyzer Service Manual 9 51 2715 0 SIGNAL INTERCONNECT A28 VIDEO DEMOD BOARD ...
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Page 529: ...2715 Spectrum Analyzer Service Manual 9 53 2715 1 A28 DEMOD 1 VIDEO DEMOD BOARD NOT USED ...
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Page 545: ...2715 Spectrum Analyzer Service Manual 9 69 2715 IF GATE A11 DIGITAL OPTIONS BOARD 5 ...
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Page 550: ...2715 Spectrum Analyzer Service Manual 9 74 ...
Page 551: ...9 75 2715 Spectrum Analyzer Service Manual 1 VARIABLE RESOLUTION A13 2715 ...
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Page 553: ...9 77 2715 Spectrum Analyzer Service Manual 2 A13 VARIABLE RESOLUTION 2715 ...
Page 554: ...2715 Spectrum Analyzer Service Manual 9 78 ...
Page 555: ...9 79 2715 Spectrum Analyzer Service Manual 3 VARIABLE RESOLUTION A13 2715 ...
Page 556: ...2715 Spectrum Analyzer Service Manual 9 80 ...
Page 557: ...9 81 2715 Spectrum Analyzer Service Manual 4 VARIABLE RESOLUTION A13 2715 ...
Page 560: ...2715 Spectrum Analyzer Service Manual 9 84 ...
Page 561: ...9 85 2715 Spectrum Analyzer Service Manual 2715 0 SIGNAL INTERCONNECT A23 RF OPTION BOARD ...
Page 562: ...2715 Spectrum Analyzer Service Manual 9 86 ...
Page 563: ...9 87 2715 Spectrum Analyzer Service Manual 1 RF OPTION A23 2715 ...
Page 564: ...2715 Spectrum Analyzer Service Manual 9 88 ...
Page 565: ...9 89 2715 Spectrum Analyzer Service Manual 2715 2 RF OPTION A23 ...
Page 566: ...2715 Spectrum Analyzer Service Manual 9 90 ...
Page 567: ...9 91 2715 Spectrum Analyzer Service Manual 2715 3 RF OPTION A23 ...
Page 569: ...9 93 2715 Spectrum Analyzer Service Manual Figure 1 24 A7 Log Amp back ...
Page 571: ...9 95 2715 Spectrum Analyzer Service Manual 2715 LOG AMP BOARD A7 SIGNAL INTERCONNECT 0 ...
Page 572: ...2715 Spectrum Analyzer Service Manual 9 96 ...
Page 573: ...9 97 2715 Spectrum Analyzer Service Manual 2715 LOG AMP BOARD A7 NOT USED 1 ...
Page 574: ...2715 Spectrum Analyzer Service Manual 9 98 ...
Page 575: ...9 99 2715 Spectrum Analyzer Service Manual 2715 LOG AMP BOARD A7 2 ...
Page 576: ...2715 Spectrum Analyzer Service Manual 9 100 ...
Page 577: ...9 101 2715 Spectrum Analyzer Service Manual LOG AMP BOARD A7 2715 3 ...
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Page 579: ...9 103 2715 Spectrum Analyzer Service Manual 2715 LOG AMP BOARD A7 4 ...
Page 580: ...2715 Spectrum Analyzer Service Manual 9 104 ...
Page 581: ...9 105 2715 Spectrum Analyzer Service Manual 2715 LOG AMP BOARD A7 5 ...
Page 582: ...2715 Spectrum Analyzer Service Manual 9 106 ...
Page 583: ...9 107 2715 Spectrum Analyzer Service Manual 2715 A7 LOG AMP BOARD 6 ...
Page 586: ...2715 Spectrum Analyzer Service Manual 9 110 ...
Page 587: ...9 111 2715 Spectrum Analyzer Service Manual 2715 1 REFERENCE OSCILLATOR A21 ...
Page 588: ...2715 Spectrum Analyzer Service Manual 9 112 ...
Page 589: ...9 113 2715 Spectrum Analyzer Service Manual 2715 2 REFERENCE OSCILLATOR A21 ...
Page 591: ...9 115 2715 Spectrum Analyzer Service Manual Figure 1 28 A10 Microprocessor back ...
Page 594: ...2715 Spectrum Analyzer Service Manual 9 118 ...
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Page 597: ...9 121 2715 Spectrum Analyzer Service Manual RAM A10 MICROPROCESSOR BOARD 2 2715 ...
Page 598: ...2715 Spectrum Analyzer Service Manual 9 122 ...
Page 599: ...9 123 2715 Spectrum Analyzer Service Manual ROM A10 MICROPROCESSOR BOARD 3 2715 ...
Page 600: ...2715 Spectrum Analyzer Service Manual 9 124 ...
Page 601: ...9 125 2715 Spectrum Analyzer Service Manual 2715 CONTROL A10 MICROPROCESSOR BOARD 4 ...
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Page 619: ...9 143 2715 Spectrum Analyzer Service Manual CONTROL REGISTERS A9 4 2715 DISPLAY STORAGE BOARD ...
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Page 633: ...9 157 2715 Spectrum Analyzer Service Manual 11 A9 VERTICAL OUTPUT DISPLAY STORAGE BOARD 2715 ...
Page 634: ...2715 Spectrum Analyzer Service Manual 9 158 ...
Page 635: ...9 159 2715 Spectrum Analyzer Service Manual 12 A9 MISCELLANEOUS DISPLAY STORAGE BOARD 2715 ...
Page 637: ...9 161 2715 Spectrum Analyzer Service Manual 2715 SIGNAL INTERCONNECT A6 FRONT PANEL BOARD 0 ...
Page 638: ...9 162 2715 Spectrum Analyzer Service Manual ...
Page 639: ...9 163 2715 Spectrum Analyzer Service Manual SWITCH MATRIX A6 FRONT PANEL BOARD 2715 1 ...
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Page 649: ...2715 Spectrum Analyzer Service Manual 9 173 A5 2715 SIGNAL INTERCONNECT SWEEP BOARD 0 ...
Page 650: ...9 174 2715 Spectrum Analyzer Service Manual ...
Page 651: ...2715 Spectrum Analyzer Service Manual 9 175 VIDEO BUFFERING A5 2715 SWEEP BOARD 1 ...
Page 652: ...9 176 2715 Spectrum Analyzer Service Manual ...
Page 653: ...2715 Spectrum Analyzer Service Manual 9 177 2715 VIDEO TRIGGER A5 SWEEP BOARD 2 ...
Page 654: ...9 178 2715 Spectrum Analyzer Service Manual ...
Page 655: ...2715 Spectrum Analyzer Service Manual 9 179 2715 A5 SERIAL CONTROL REGISTER SWEEP BOARD 3 ...
Page 656: ...9 180 2715 Spectrum Analyzer Service Manual ...
Page 657: ...2715 Spectrum Analyzer Service Manual 9 181 2715 SWEEP RAMP GENERATOR SWEEP BOARD A5 4 ...
Page 664: ...9 188 2715 Spectrum Analyzer Service Manual ...
Page 665: ...2715 Spectrum Analyzer Service Manual 9 189 0 SIGNAL INTERCONNECT POWER SUPPLY BOARD A15A1 ...
Page 666: ...9 190 2715 Spectrum Analyzer Service Manual ...
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