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Model 8671A
Contents
CONTENTS (Cont’d)
Section
5.28. YTO Loop Offset and FM Overmodulation
Adjustments
5.29. YTO Loop Phase Detector Adjustment
5.30. FM Driver Adjustment
5-31. A2 Controller Assembly Adjustments
5-32. 160-240 MHz (20130 MHz or LFS Loop)
VCO Prctune Adjustments
5.33. 20/30 Mnz (LFS) Loop Divider Bias
Adjustments
5.34. A2A4 Assembly Notch Filter Adjustment
5-35. Al RF Output Assembly FM Sensitivity
Adiustment
VI
6.1.
6-3.
6-5.
6.1.
6.11
6-14
VII
7.1.
7-3.
7-6.
REPLACEABLE PARTS
Introduction
Excharlge Asfiemblips
Abbreviations
Replaceable Parts List
Ordering Information
spare Parts Kit
MANUAL CHANGES
Introduction
Manual Changes
Manual Change Instructions
5.15
5”17
5-19
5.20
5-20
5.21
5-29
5-24
6.1
6-l
6-l
6.1
6-l
6-l
6-l
7-l
I-l
7-l
7.1
Section Page
7.7. Instrument Improvements ...............
7-3
7.11. Instrument Improvement Modification
Instructions ........................
7.3
VIII SERVICE
.......................... 8-l
8.1. Introduction
........................ 8-l
8.5. Safety Considerations
.................. 8.1
8.11. Principles of Operation
................. 8.1
8.13. Troublesbooting
...................... 8-l
8.14. Arrangement in Manual ...............
8.1
8.16.
Supplemental Troubleshooting Aids ....... 8-l
8.20. Recommended Test Equipment
............ 8.5
S.22. Service Aids. ........................
8-5
8.27. Repair
............................ S-5
8.29. Factory Selected Components. ..........
8-5
8.31.
Non-Field Repairable Assemblies ......... 8.5
8.33. Module Exchange Program ............. S.5
8.35.
After Service Product Safety Checks ...... 8-6
8.41. Disassembly and Reassembly Procedures .... 8-6
8.52. Logic Symbols
...................... S-10
8.54. Qualifiers .......................
8.11
8.56.
Indicator Symbols .................
Kll
8.58.
Contiguous Blocks ................. 8.11
E-60.
Dependency Notation ............... 8-11
8.62. Common Control Block ..............
8-14
8”64. Complex Devices .................. 8-14
SERVICE SHEETS
Service Sheet
Page
1 Overall Troubleshooting Rlock Diagram
2
A3 RF Source Assembly
3 A2 Controller Assembly
l.Al AlAl Front Panel Assembly.
l-A2 20130 MHz Divider Assembly
2.A2 20/30 MHz Phase Detector Assembly
3.A2 VCO 160-240 MHz Assembly
4.A2 HP-In Address Assembly
5.A2 P/O HP.IB Interface Assembly
6.A2 P/D IntexKace Assembly
7.A2 Ilegistex 1 Assembly
8.A2 P/O Timing and Control Assembly
9.A2 P/O Timing and Control Assembly
lo-A2 P/O Output Register Assembly
Il-AZ P/O Output Regsiter Assembly
8.29
8-30
8.34
8.36
8.38
8.40
8-42
8.44
8.46
8.48
8-50
8.52
8.54
8.56
8.58
12.A2 P/O Front Panel Assembly 8.60
13.A2 P/O Front Panel Assembly 8-62
l-A3 Reference Phase Lock Assembly 8.64
2~A3 100 MHz VCXO Assembly 8-66
3-A3 M/N Phase Detector Assembly 8.68
4-A3 M/N VCO Assembly 8-70
5.A3 M/N Output Assembly 8-72
6.A3 Digital-to-Analog Converter 8-74
7.A3 YTO Main Coil Driver 8-76
%A3 YTO Sampler Assembly 8.78
9-A3 YTO Phase Detector Assembly 8.K
IO-A3 FM Driver Assembly 8.82
11.A3 Rectifier Assembly 8~84
12.A3 Positive Regulator Assembly 8-86
13.A3 Negative Regulator Assembly 8-88