Fluke 6080AN Manuals

Manuals and User Guides for Fluke 6080AN. We have 1 Fluke 6080AN manual available for free PDF download: Service Manual

Fluke 6080AN Service Manual

Fluke 6080AN Service Manual (296 pages)

SYNTHESIZED SIGNAL GENERATOR

Brand: Fluke | Category: Portable Generator | Size: 7.06 MB

Table of Contents

Table of Contents

3
- Title Page
  4
List of Tables

11
- Introduction
  15
- Introduction and Specifications
  15
- Unpacking the Signal Generator
  15
- Safety
  16
- Accessories
  17
- Accessories Included with each Signal Generator
  17
- Signal Generator Specifications
  17
- General Description
  33
- Introduction
  33
- Theory of Operation
  33
- Amplitude Modulation
  34
- Frequency
  34
- Frequency Modulation
  34
- Front Panel Section
  34
- Functional Description
  34
- Internal Modulation Oscillator
  34
- Phase Modulation
  34
- Pulse Modulation
  34
- Rear Panel Section
  34
- Upper/Lower Module Sections
  34
- Frequency Coverage Bands
  35
- Digital Controller Software Description
  38
- Power Supply Description
  38
- User Interface
  38
- Calibration/Compensation Memory
  39
- Self-Test
  39
- Status Signals
  39
- Closed-Case Calibration
  41
- Introduction
  41
- Front Panel Calibration
  42
- Remote Calibration
  42
- Calibration Data
  43
- Am Calibration
  44
- Front Panel am Calibration Procedure
  44
- Front Panel Controls for am Calibration Procedure
  45
- Remote am Calibration Procedure
  46
- Fm Calibration
  47
- Remote Programming Commands for am Calibration Procedure
  47
- Front Panel Controls for FM Calibration Procedure
  48
- Front Panel FM Calibration Procedure
  48
- Remote FM Calibration
  49
- Remote Programming Commands for FM Calibration Procedure
  50
- Rf Level Calibration
  50
- Front Panel Level Calibration Procedure
  51
- Front Panel Controls for Level Calibration Procedure
  52
- Remote Level Calibration Procedure
  53
- Reference Oscillator Calibration
  54
- Remote Programming Commands for Level Calibration Procedure
  54
- Front Panel Controls for Reference Oscillator Calibration Procedure
  55
- Front Panel Reference Oscillator Calibration Procedure
  55
- Remote Reference Oscillator Calibration Procedure
  56
- Remote Programming Commands for Reference Oscillator Calibration Procedure
  57
- Introduction
  59
- Performance Tests
  59
- Test Equipment
  59
- Power-On Test
  62
- Frequency Accuracy Test
  63
- Synthesis Test
  63
- High-Level Accuracy Test
  64
- High-Level Accuracy Test Conditions
  65
- High-Level Accuracy Test Conditions Sample
  66
- MID-Level Accuracy Test
  66
- Low-Level Accuracy Test
  67
- Alternate-Level Accuracy Test
  68
- Flatness Test
  71
- Output Leakage Test
  72
- Harmonic and Line-Related Spurious Test
  73
- Phase Noise and Non-Harmonic Spurious Tests
  74
- Modulation Tests
  75
- Modulation Tests Requirements
  75
- AM Test Conditions
  77
- Voltage Standing-Wave Ratio (Vswr) Tests
  81
- Pulse Tests
  82
- Access Procedures
  87
- Introduction and Safety
  87
- Access Instructions
  89
- Location of Major Assemblies
  89
- Removing the Front Panel Section
  89
- Removing the Rear Panel Section
  89
- Removing the A2 Coarse Loop PCA
  90
- Removing the A3 Sub-Synthesizer VCO PCA
  90
- Removing the A4 Sub-Synthesizer PCA
  91
- Removing the A5 Coarse Loop VCO PCA
  91
- Removing the A6 Mod Oscillator PCA
  91
- Removing the A8 Output PCA
  91
- Removing the A10 Premodulator PCA
  92
- Removing the A11 Modulation Control PCA
  92
- Removing the A9 Sum Loop VCO PCA
  92
- Removing the A12 Sum Loop PCA
  93
- Removing the A13 Controller PCA
  93
- Removing the A14 FM PCA
  94
- Removing the A20 Attenuator/Rpp Assembly
  94
- Removing the A22 Delay Cable Assembly
  94
- Circuit Descriptions, Troubleshooting, and Alignment
  97
- Introduction
  97
- Module Exchange Assemblies
  100
- Module Replacement
  100
- A1 Display PCA
  101
- A2 Coarse Loop PCA
  101
- A3 Sub-Synthesizer PCA
  101
- A4 Sub-Synthesizer PCA
  101
- A5 Coarse Loop VCO PCA
  101
- A6 Mod Oscillator PCA
  101
- A7 Relay Driver PCA
  101
- A8Output PCA
  101
- A9 Sum Loop VCO PCA
  101
- A10 Premodulator PCA
  102
- A11 Modulation Control PCA
  102
- A12 Sum Loop PCA
  102
- A13 Controller PCA
  102
- A14 FM Board PCA
  102
- A15 Power Supply PCA
  102
- A19 Switch PCA
  102
- A20 Attenuator/Rpp Assembly (A7, A21, A30)
  102
- A22 Delay Line Assembly (A25+A26+Delay Cable+Trim Cable)
  102
- Updating Compensation Memory with Module Exchange Data
  103
- Digital Tests
  104
- Parts Replacement
  104
- Self-Test Description
  104
- AM Test Conditions
  105
- AM Tests
  105
- FM Tests
  105
- ØM Tests
  105
- DC FM Tests
  106
- DCFM Test
  106
- FM Tests
  106
- Phase Modulation Test Conditions
  106
- Coarse Loop Tests
  107
- Sub-Synthesizer Tests
  107
- Sum Loop Tests
  107
- Filter Tests
  108
- Pulse Modulator Tests
  108
- RF Output Tests
  108
- Filter Tests
  109
- Status Signals and Codes
  109
- Status Signals and Status Codes
  109
- Digital Control Latch Test
  110
- Instrument Diagnostic State
  110
- Set Internal Dacs
  110
- Software Diagnostic Functions
  110
- Display Synthesizer Loop Frequencies
  111
- 1. Power Supply Block Diagram 6A-1
  113
- 2. Power Supply Circuit Description 6A-1
  113
- Power Supply
  113
- 3. Power Supply Troubleshooting 6A-4
  116
- 4. Troubleshooting Procedure 6A-4
  116
- 5. Power Supply Adjustment Procedure 6A-5
  117
- 1. Digital Controller Block Diagram 6B-1
  119
- 10. Status and Control 6B-4
  119
- 2. Digital Controller Circuit Description (A13) 6B-1
  119
- 3. Microprocessor 6B-1
  119
- 4. Memory 6B-1
  119
- 6. Front Panel Interface 6B-3
  119
- 7. IEEE-488 Interface 6B-3
  119
- 8. Attenuator Control Interface 6B-3
  119
- Digital Controller
  119
- 11. Digital Controller Troubleshooting 6B-4
  122
- 13. Microprocessor Kernel 6B-5
  123
- 15. Power-On Reset 6B-5
  123
- 16. Unused Microprocessor Inputs 6B-5
  123
- 17. Bus Error 6B-5
  123
- 19. Microprocessor Bus 6B-6
  124
- 20. Address Decoder 6B-6
  124
- 22. Calibration/Compensation Memory 6B-8
  126
- 23. Calibration/Compensation Memory Status 6B-8
  126
- 24. Repairing Calibration/Compensation Memory Checksum Errors
  127
- 26. Front Panel Circuit Description 6B-9
  127
- Calibration/Compensation Memory Origin Status
  127
- 27. Display PCA 6B-10
  128
- 28. Data Communications 6B-10
  128
- 29. Display Filament Voltage 6B-10
  128
- 30. Bright-Digit Effect 6B-10
  128
- 31. Switchboard Interface 6B-10
  128
- 32. Remote Footswitch 6B-10
  128
- 33. Edit Knob Interface 6B-11
  129
- 34. Display Blanking 6B-11
  129
- 35. Operate/Standby Selection 6B-11
  129
- 36. Front Panel Troubleshooting 6B-11
  129
- 37. Display and Controls 6B-11
  129
- 1. Frequency Fault Tree 6C-1
  131
- 2. Sub-Synthesizer Block Diagram 6C-1
  131
- 3. Sub-Synthesizer Circuit Description (A4) 6C-1
  131
- Frequency Synthesis
  131
- 4. Sub-Synthesizer Troubleshooting 6C-9
  139
- 5. Sub-Synthesizer Adjustments 6C-13
  143
- 6. Steering DAC Full Scale Adjustment 6C-13
  143
- 7. Lower Clamp Adjustment, R99 6C-13
  143
- SSB Mixer lo Drive Adjustment, R106
  144
- Upper Clamp Adjustment, R98
  144
- 10-Khz Notch Adjustment, L56
  145
- 11. Sub-Synthesizer Vco (A3) Circuit Description 6C-16
  146
- 12. Sub-Synthesizer Vco Troubleshooting 6C-16
  146
- 13. Coarse Loop Circuit Description (A2) 6C-17
  147
- 14. Reference Section Block Diagram 6C-17
  147
- 15. Coarse Loop Block Diagram 6C-20
  150
- 16. Coarse Loop Troubleshooting 6C-22
  152
- 17. Coarse Loop Pca Adjustments 6C-26
  156
- Discriminator Video Amplifier Offset Adjustment, R102
  156
- 40-Mhz Oscillator Adjustment, L601
  158
- Acquisition Oscillator Level Adjustment, R227
  158
- Steering Gain Adjustment, R221
  158
- 80-Mhz Filter Tuning, L612 and L613
  159
- 2-Mhz Notch Adjustment, L205
  160
- 80-Mhz Level Adjustment, R617
  160
- 25. Alternate Reference Frequency Selection 6C-31
  161
- 26. Coarse Loop Vco (A5) Circuit Description 6C-31
  161
- 27. Coarse Loop Vco Troubleshooting 6C-32
  162
- 29. Sum Loop (A12) Circuit Description 6C-34
  164
- 31. Audio Section 6C-35
  165
- 33. Sum Loop Assembly Adjustments 6C-41
  171
- Steering Level Adjustment, R112
  171
- Buffer Gain Match Adjustment, R121
  172
- FM Null Adjustment, R116
  172
- Loop Gain Adjustment, R167
  173
- 39. Sum Loop Vco (A9) Circuit Description 6C-44
  174
- Acquisition Oscillator Level Adjustment, R132
  174
- 40. Sum Loop Vco Troubleshooting 6C-45
  175
- Rf Level/Am
  177
- 5. Leveling Loop 6D-5
  181
- 6. Level Control 6D-6
  182
- 9. Output Assembly Test Point Signal Information 6D-9
  185
- Mod Control PCA Level DAC Offset Adjustment, R23
  186
- Mod Control PCA am DAC Offset Adjustment, R8
  187
- Mod Control PCA Detector Offset Adjustment, R28
  188
- 14. Mod Control PCA am Depth Adjustment, R10 6D-13
  189
- 15. Mod Control PCA RF Level Adjustment, R20 6D-14
  190
- 17. Mod Control PCA Sum Steer Gain Adjustment 6D-15
  191
- Mod Control PCA External Modulation Level Indicator Adjustment, R71
  191
- Output PCA Het Mixer Level Adjustment, R72
  192
- 19. Output PCA Het Level Adjustment, R10 6D-17
  193
- 20. Premodulator PCA Bandwidth Adjustment, R51 and C7 6D-17
  193
- Output PCA Q16 Bias Adjustment, R96
  194
- 22. Output PCA Q9 Bias Adjustment, R1 6D-19
  195
- 23. Output PCA) Gain Flatness Adjustment, C201 6D-19
  195
- 27. Attenuator/Reverse Power Protection (Rpp) 6D-20
  196
- 28. Attenuator Rpp Troubleshooting 6D-21
  197
- Frequency and Phase Modulation
  199
- 4. Oscillator Section 6E-2
  200
- 5. Divider Section 6E-4
  202
- 6. Phase Detectors, Loop Circuits, and Logic Section 6E-4
  202
- 13. Frequency Check 6E-11
  209
- 17. Adjustments on the Modulation Control PCA (A11) 6E-13
  211
- 18. Alignment of FM PCA (A14) 6E-14
  212
- 1. Modulation Oscillator Block Diagram 6F-1
  217
- Internal Modulation Oscillator
  217
- Internal Modulation Oscillator
  218
- 4. Pulse Generator 6F-3
  219
- 5. Signal Routing 6F-3
  219
- 7. Direct Digital Synthesizer Troubleshooting 6F-4
  220
- Mod Oscillator Troubleshooting and Adjustments 6F-4
  220
Section 7

223
- List of Replaceable Parts
  223
- Table of Contents
  223
- How to Obtain Parts
  224
- Introduction
  224
- Service Centers
  225

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