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HEWLETT PACKARD
OPERATING AND SERVICE MANUAL
8671A
SYNTHESIZER
(Including Options 002, 003 and 005)
SERIAL NUMBERS
This manual applies directly to instruments with
serial numbers prefixed 1704A.
With the changes described in Section VII, this
manual also applies to instruments with serial
numbers prefixed 170IA, 1702A, and 1703A.
For additional important information about serial
numbers, see INSTR’UMENT COVERED BY
MANUAL in Section I.
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COPYRIGHT AND DISCLAIMER NOTICE Copyright - Agilent Technologies, Inc. Reproduced with the permission of Agilent Technologies Inc. Agilent Technologies, Inc. makes no warranty of any kind with regard to this material including, but not limited to, the implied warranties of merchantability and fitness for a particular purpose. Agilent Technologies, Inc. is not liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use
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SYNTHESIZER instrum& containing improvements made after the printing o? the manual. To ufic this supplement: Make all ERRATA corrections Make all appropriate Serial “umber related changes indicated in the tables below. 1 through 10 1 through 6 ERRATA Pa@ 1.4, Paragraph 1.42: Add: If the instrument rack mounting slides are to be mounted in a standard &LA. rack, then B” adapter (HP part number 1494.0023) is needed. The slides without the adapter ca” be directly mounted in the Hewlett-Pa
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Model 8671A CONTENTS Page Section Section 3.11 GENERAL INFORMATION l-l 3.38. Receiving the Trigger Message 1 3”ll Receiving the Clear Message 1.1. Introduction .................... 1.1 3-40. 3.I,1 l-l 3.42. Receiving the Remote Message 1.7. Specifications ................... 3.11 Receiving the Local Message 1.9. Safety Considerations .............. 1.1 3.44. 3”12 Receiving the Local Lockout Message l”13. Inslruments Covered by Manual ....... 1-l 3-46. 1.1 3.48. Receiving the C
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Contents Model 8671A CONTENTS (Cont’d) Section Page Section 5.28. YTO Loop Offset and FM Overmodulation 7.7. Instrument Improvements ............... 7-3 5.15 7.11. Instrument Improvement Modification Adjustments 5.29. YTO Loop Phase Detector Adjustment 5”17 Instructions ........................ 7.3 5.30. FM Driver Adjustment 5-19 5.20 VIII SERVICE 5-31. A2 Controller Assembly Adjustments .......................... 8-l 8.1. Introduction 5-32. 160-240 MHz (20130 MHz or LFS Loop) ..
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Model. 8671A ILLUSTRATIONS Page FIgwe 5.11. 20130 MHz Loop Divider Bias Adjustment 1”l. Mudcl 8671A and Accessories Supplied Test Setup. 5.22 l-2. Special Interconnect Cable 5.12. A2A4 Assembly Notch Filter Adjustment 5.23 Test Setup. Line Voltage and Fuse Selection 2.1 2-l. FM Sensitivity Adjustment Test Setup 5.24 5-18. 2.2. Power Cable and Mains Plug Part Numbers 2-2 2.3. Locatiorl OK IIY.IB Address and 6”l. Al Assembly, Front Panel Mechanical Parts 6.6 Parallel Poll Switch
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contents Model 8671A ILLUSTRATIONS (Cont’d) Figure Page 8.33. A2A3 160-240 MHz Assembly Component A3AlAl Reference J’hase Lock Board 8-66. Locations R-42 Assembly Component and Test Point 8.43. VCO 160-240 MHz Lllock Diagrams 8-43 Locations 8-64 8~35. VCO ‘160-240 MHz Assembly Schematic Hefexsnce Phase Lock Block Diagrams 8.65 8-67. Diagram 8-48 8”68. Refcrencc Phase Lock Assembly Schematic H-36. KM9 HP-IB Addresfi Assembly Cumponent Diagram 8-65 Localiuns 8.44 A3AlA2 100 MHz VCXO
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Model 8671A contents ILLUSTRATIONS (Cont’d) Page Figure Figure Page 8.109. A2A12 Motherboard Assembly Component 8.96, A3A2 Rectifier Assembly Component 8.91 Locations Adjustment, and Test Point Locations 8.84 8.110. A3A10 RF Source Motherboard Component 8~91. Ilcctifier Block Diagrams 8-85 8-93 8.85 Locations 8.98. Rectifier Assembly Schematic Diagram 8.111. A8AlA6 Reference and M/N Motherboard 8.99. A3A3 Positive Regulator Assembly, Assembly Component and Connector Component,
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Model 8671A Safety Considerations SAFETY CONSIDERATIONS GENERAL SAFETY EARTH GROUND This product and rt!latt!d documentation must be This is a Safety Class I product (provided with a revicwt!d f’or familiarization with safety markings protective earthing terminal), An uninterruptible and instructions before operation. This product has safety earth ground must be provided from the bwn designed and tested in accordance with inter- main power source to the product input wiring ter- nati
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General Information Model 8671A MODEL 8671A EXTENDER BOARDS LINE POWER CABLE FUSE Figure 1.1. Model 8671A and Accessories Supplied
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General Information Model 8671A SECTION I GENERAL INFORMATiON 1-11. The Synthesizer and all related documenta- l-l. INTRODUCTION tion must be reviewed for familiarization with l”2. ‘I’his manual contains information pertinent safety markings and instructions before operation. to installing, operating, testing, adjusting, and ser- Refer to the Safety ConsiderationG page found at vicing the Hewlett-Packard Model 86’71A Synthe- the beginning of this manual for a summary of the sizer. T
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