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8753E
HP 8753E Service Manual
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Node 15
Pretune
(open-loop source pretune voltage)
This node displays the source pretune signal and should look like a stair-stepped
ramp. Each step corresponds to the start of a band.
Figure 10-11.
Analog
Bus Node 15
1046
Service Key Menus and Error Messages
401
403
Table of Contents
Default Chapter
6
Table of Contents
6
Service Equipment and Analyzer Options
28
Lhble of Service Test Equipment
28
Principles of Microwave Connector Care
32
Analyzer Options Available
34
Option Ld5, High Stability Frequency Reference
34
Option 002, Harmonic Mode
34
Optionoo6,6Ghzoperation
34
Option 010, Time Domain
34
Option 011, Receiver Configuration
34
Option 075,750 Impedance
35
Option Ldt, Delete Display
35
Option Lcm, Rack Mount Flange Kit Without Handles
35
Option Lcp, Rack Mount Flange Kit with Handies
35
Service and Support Options
36
Option W32
36
Option W34
36
System Veriikation and Performance 'Lksts
37
System Specifications
37
Performance Tests
37
How to Confirm Performance to System Specifications
39
How to Confirm Performance to Instrument Specifications
39
Certificate of Calibration
40
Sections in this Chapter
41
Performance Test Record
42
System Verification Cycle and Kit Re-Certification
43
HP 8753E System Verification
44
Initiaiization
45
Measurement Calibration
47
Device Verification
50
Test Port Output Frequency Range and Accuracy
54
External Source Mode Frequency Range
57
Incaseofdifficulty
62
In Case of Difficulty
65
In Case of Difficulty
69
Port 1 Noise Floor Level from 300 Khz to 3 Ghz (if BW = 3 Khz)
74
Port 1 Noise Floor Level from 300 Khz to 3 Ghz (if BW = 10 Hz)
75
Port 2 Noise Floor Level from 3 Ghz to 6 Ghz (if BW = 3 Khz)
76
Port 2 Noise Floor Level from 3 Ghz to 6 Ghz (if BW = 10 Hz)
77
Port 1 Noise Floor Level for 3 Ghz to 6 Ghz (if BW = 10 Hz)
77
Port 1 Noise Floor Level from 3 Ghz to 6 Ghz (if BW = 3 Khz)
77
Test Port Input Frequency Response
79
Power Meter Calibration for Test Port 1 from 300 Khz to 3 Ghz
80
Power Meter Calibration on Port 2 from 300 Khz to 3 Ghz
84
Test Port 1 Input Frequency Response from 300 Khz to 3 Ghz
85
Power Meter Calibration for Test Port 2 from 3 Ghz to 6 Ghz
85
Test Port 1 Input Frequency Response from 3 Ghz to 6 Ghz
87
Test Port 2 Input Frequency Response from 3 Ghz to 6 Ghz
89
Crosstalk to Test Port 1 from 300 Khz to 3 Ghz
91
Crosstalk to Test Port 2 from 3 Ghz to 6 Ghz
92
Calibration Coefficients
94
First Fuli 2-Port Calibration
95
Directivity (Forward) Calibration Coefficient
97
Source Match (Forward) Calibration Coefficient
97
Transmission Tracking (Forward) Calibration Coefficient
97
Reflection Tracking (Forward) Calibration Coefficient
97
System Trace Noise (Only for Analyzers Without Option 006)
101
System Trace Noise for A/R Magnitude
102
System Trace Noise for A/R Phase
102
System Trace Noise for B/R Magnitude
102
System Trace Noise for B/R Phase
103
In Case of Difficuity
103
System Trace Noise (Only for Analyzers with Option 006)
104
System Trace Noise for A/R Magnitude from 30 Khz to 3 Ghz
105
System Trace Noise for A/R Phase from 3 Ghz to 6 Ghz
105
System Trace Noise for A/R Phase from 30 Khz to 3 Ghz
106
System Trace Noise for B/R Magnitude from 30 Khz to 3 Ghz
106
System Trace Noise for B/R Magnitude from 3 Ghz to 6 Ghz
106
System Trace Noise for B/R Phase from 3 Ghz to 6 Ghz
106
System Trace Noise for B/R Phase from 30 Khz to 3 Ghz
107
12. Test Port Input Impedance
108
In Case of Difficulty
112
Initial Calcuiations
115
Power Meter Calibration
116
Adapter Removal Calibration
119
Measure Test Port 2 Magnitude Dynamic Accuracy
121
Measure Test Port 1 Magnitude Dynamic Accuracy
123
In Case of Difficulty
127
Test Port 1 Magnitude Compression
127
Test Port 2 Magnitude Compression
127
15. Test Port Receiver Phase Compression
128
Test Port 2 Phase Compression
129
Port 1 Input Worst Case 2Ndharmonic
133
Test Port Output Worst Case 3Rd Harmonic
133
Port2Inputworstcase2Ndharmonic
135
Port 2 Input Worst Case 3Rd Harmonic
136
Test Port Output Worst Case 2Nd Harmonic
138
Test Port Output Worst Case 3Rd Harmonic
139
Port 1 Input Worst Case 2Ndharmonic
140
Port2Inputworstcase2Ndharmonic
141
Port2Inputworstcase3Rdharmonic
142
Procedure
144
Performance 'Lkst Record for Analyzers with a Frequency Range of 30 Khz to 3 Ghz
162
Performance 'L&T Record
162
For Analyzers with a Frequency Range of 30 Khz to 6 Ghz
162
3 Adjustments Andcmmction Constants
178
Cavity Oscillator Frequency Correction Constants (Test 54)
205
Spur Search Procedure with a Filter
207
Spurs Search Procedure Without a Filter
208
Serial Number Correction Constants (Test 55)
211
Option Numbers Correction Constants (Test 56)
213
Initialize Eeproms (Test 58)
214
EEPROM Backup Disk Procedure
215
Correction Constants Retrieval Procedure
217
Loadingfirmware
218
Loadingfirmwareintoanexistingcpu
218
Loadingfirmwareintoanewcpu
220
Frequency Accuracy Adjustment
225
Instruments with Option ID5 Only
228
In Case of Difficulty
228
High/Low Band Transition Adjustment
229
Fractional-N Spur Avoidance and FM Sideband Adjustment
231
Source Spur Avoidance Tracking Adjustment
235
A9 Switch Positions
178
Source Default Correction Constants (Test 44)
178
Source Pretune Default Correction Constants (Test 45)
178
Analog Bus Correction Constants (Test 46)
178
Source Pretune Correction Constants (Test 48)
178
RF Output Power Correction Constants (Test 47)
178
Power Sensor Calibration Factor Entry
189
ADC Offset Correction Constants (Test 52)
194
Sampler Magnitude and Phase Correction Constants (Test 53)
195
Power Sensor Calibration Factor Entry
196
Determine the Insertion Loss of the Cable at 1 Ghz
197
Sampler Correction Constants Routine
200
Unprotected Hardware Option Numbers Correction Constants
237
How to Load Sequences from Disk
239
Sequences for Mechanical Adjustments
239
How to Set up the Fractional-N Frequency Range Adjustment
240
How to Set up the High/Low Band Transition Adjustments
240
How to Set up the Fractional-N Spur Avoidance and FM Sideband Adjustment
241
Sequence Contents
241
Sequence for the High/Low Band Transition Adjustment
241
Sequences for the Fractional-N Frequency Range Adjustment
242
Sequences for the Fractional-N Avoidance and FM Sideband Adjustment
243
4 Staxttroubleshooting here
246
Assembly Replacement Sequence
246
Having Your Analyzer Serviced
246
Step 1. Initial Observations
247
Initiate the Analyzer Self-Test
247
Step 2. Operator's Check
248
Description
248
Procedure
248
Step 3. HP-IB Systems Check
250
If Using a Plotter or Printer
251
Troubleshooting Systems with Multiple Peripherals
252
Troubleshooting Systems with Controllers
252
Step 4. Faulty Group Isolation
253
Power Supply
254
Check the Rear Panel Leds
254
Check the A8 Post Regulator Leds
254
Digital Control
255
Observe the Power up Sequence
255
Verify Intemai Tests Passed
256
Source
256
Equipment Setup for Source Power Check
258
Receiver
260
Equipment Setup
260
Accessories
262
Accessories Error Messages
262
Power Supply Troubleshooting
264
Assembly Replacement Sequence
265
Simplified Block Diagram
266
Starthere
267
Check the Green LED and Red LED on Al5
267
Check the Green Leds on A8
268
Measure the Post Regulator Voltages
268
If the Green LED of the Al5 Is Not on Steadily
270
Check the Line Voltage, Selector Switch, and Fuse
270
Check the A8 Post Regulator
271
Verify the Al5 Preregulator
272
Power Supply Cable Locations
272
Check for a Faulty Assembly
274
A15Wl Plug Detail
274
Check the Operating Temperature
276
Inspect the Motherboard
276
Remove AS, Maintain A15Wl Cable Connection
277
Check the A8 Fuses and Voltages
277
Remove the Assemblies
278
Briefly Disable the Shutdown Circuitry
279
Inspect the Motherboard
281
Error Messages
282
Check the Fuses and Isolate .A8 . 1 : 1 . 1 1 1 : 1 : 1 1 1
283
Fan Speeds
285
Check the Pan Voltages
285
Short ABTP3 to Ground
285
Intermittent Problems
286
Digital Control Troubleshooting
288
Digital Control Group Block Diagram
289
Assembly Replacement Sequence
290
CPU Troubleshooting (A9)
291
A9 CC Switch Positions
291
Checking A9 CPU Red LED Patterns
292
Switch Positions on the A9 CPU
292
Display Troubleshooting (A2, A18, A19, A27)
294
Evaluating Your Display
294
Backlight Intensity Check
295
Backlight Intensity Check Setup
296
Red, Green, or Blue Pixels Specifications
296
Dark Pixels Specifications
297
Newton's Riis
297
Newtons Rings
298
Troubleshooting a White Display
299
Troubleshooting a Black Display
299
Troubleshooting a Display with Color Problems
299
Front Panel Troubleshooting (Al, A2)
300
Check Front Panel Leds after Preset
300
Preset Sequence
300
Identify the Stuck Key
301
Inspect Cables
303
Test Using a Controller
303
Run the Internal Diagnostic Tests
304
If the Fault Is Intermittent
306
Repeat Test Function
306
Source Troubleshooting
307
Assembly Replacement Sequence
308
Before You Start Troubleshooting
308
A4 Sampler/Mixer Check
312
A3 Source and All Phase Lock Check
314
Phase Locked Output Compared to Open Loop Output in SRC
315
Waveform Integrity in SRC Tune Mode
315
YO Coil Drive Check with Oscilloscope
318
Al2 Reference Check
319
Analog Bus Method
319
Oscilloscope Method
321
PLREF Waveforms
323
Mhz Reference Signal
326
2ND lo Waveforms
327
90 Degree Phase Offset of 2Nd lo Signals in High Band
327
Lenrefline
329
A13/A14 Fractional-N Check
330
Fractional-N Check with Analog Bus
330
Al4 VCO Range Check with Oscilloscope
331
Al4 VCO Exercise
333
Al4 Divide-By-N Circuit Check
335
A7 Pulse Generator Check
338
Rechecking the A13/A14 Fractional-N
339
A7 Pulse Generator Check with Oscilloscope
340
All Phase Lock Check
341
Phase Lock Check with PLL DIAG
342
Phase Lock Diagnostic Tools
344
Phase Lock Error Messages
344
Source Group Troubleshooting Appendix
344
Troubleshooting Source Problems with the Analog Bus
344
Broadband Power Problems
345
Phase Lock Diagnostic Routines
345
Receiver Troubleshooting
346
Assembly Replacement Sequence
347
Receiver Failure Error Messages
348
Troubleshooting When au Inputs Look Bad
351
Check A10 by Substitution or Siiai Examination
353
Troubleshooting When One or more Inputs Look Good
356
Check 2Nd lo Signal at Sampler/Mixer
359
Accessories Troubleshooting
360
Assembly Replacement Sequence
361
Inspect the Accessories
362
Inspect the Test Port Connectors and Calibration Devices
362
Cable Test
364
Verify Shorts and Opens
365
Service Key Menus and Error Messages
367
Service Key Menus
367
Error Messages
367
Service Key Menus . Internal Diagnostics
368
Tests Menu
369
Test Options Menu
371
Self Diagnose Softkey
373
Test Descriptions
373
Internal Tests
373
External Tests
377
System Verification Tests
378
Adjustment Tests
379
Display Tests
381
Test Patterns
382
Service Key Menus - Service Features
384
Service Modes Menu
384
Service Modes more Menu
387
Analog Bus
388
Description of the Analog Bus
388
Themainadc
388
The Frequency Counter
389
Analog in Menu
390
Analog Bus Nodes
392
A3 Source
392
All Phase Lock
400
Al4 Fractional-N (Digital)
409
PEEK/POKE Menu
412
Firmware Revision Softkey
413
Invoking Tests Remotely
414
Analog Bus Codes
415
Error Messages
416
Error Lkrms
427
Error L&M Inspection
434
If Error Terms Seem Worse than Typical Values
435
Uncorrected Performance
435
Directivity (EDF and EDR)
437
Description
437
Affected Measurements
437
Source Match (ESF and ESR)
438
Description
438
Affected Measurements
439
Description
439
Reflection Tracking (ERF and ERR)
439
Significant System Components
439
Affected Measurements
440
Description
440
Significant System Components
440
Affected Measurements
442
Description
442
Significant System Components
442
Transmission Tracking (ETF and ETR)
442
Theory of Operation
443
The Built-In Synthesized Source
444
The Source Step Attenuator
444
The Receiver Block
445
Required Peripheral Equipment
445
The Microprocessor
445
A Close Look at the Analyzer's Functional Groups
446
Power Supply Theory
447
Line Power Module
448
Preregulated Voltages
448
Shutdown Indications: the Green LED and Red LED
448
A8 Post Regulator
449
Shutdown Circuit
449
Voltage Indications: the Green Leds
449
Display Power
450
Probe Power
450
Digital Control Theory
450
Al Front Panel
452
A2 Front Panel Processor
452
A9 CPU/A10 Digital if
452
Eeprom
453
Al8 Display
453
A19 Gsp
454
A27 Inverter
454
Source Theory Overview
456
A14/A13 Fractional-N
456
Al2 Reference
456
A7 Pulse Generator
457
All Phase Lock
457
A3 Source
457
Source Super Low Band Operation
457
Source Low Band Operation
458
Source High Band Operation
461
Source Operation in Other Modes/Features
464
Frequency Offset
464
Harmonicanalysis(Option002)
464
External Source Mode
465
Tuned Receiver Mode
467
Signal Separation
468
A24 Transfer Switch
468
Receiver Theory
470
Other manuals for HP 8753E
Programming And Command Reference Guide
192 pages
User Guide
699 pages
Installation And Quick Start Guide
68 pages
4
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HP 8753E Specifications
General
Brand
HP
Model
8753E
Category
Measuring Instruments
Language
English
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