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OPERATING AND SERVICE MANUAL
VOLUME 2
HP 86731:
HP86730
SYNTHESIZED
SIGNALGENERATOR
[Including Options001, 002, 003,
004,005,006,908 and 913)
SERIAL NUMBERS
This manual applies directly to instruments with
serial numbers prefixed 2332A.
For additional important information about serial
numbers, see INSTRUMENTS COVERED BY
MANUAL in Section I.
NOTE
If you return the request card for a final
Operating and Service Manual, Volume 1,we
will, send you a complete final Operating and
Service Manual, Volume 1 and 2.
HEWLETT
PACKARD
@ CopyrIght HEWLETT-PACKARD COMPANY ,984, ,985
1501 PAGE MILL ROAD, PALO ALTO, CALIFORNIA. U.S.A.
"olume 1 Pari Number 08673-80021
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 of this material or data.
MANUALCHANGE!
MANUAL IIIENTIFICATION
SYNTHESlZED SIGNAL GENERATOR
VOLUME 2
This supplement contains important information
ModelNumber:HP 8673C/D
Me Printed: March 1985
PartNumber: o86i%oo22
for correcting manual errors and for adapting
1
the
manual to instruments containing improvements made after the printing of the manual.
To use this supplement:
Make aXX ERRATA corrections
Make all appropriate serial number related changes indicated in the tables below.
- Srri.lPrcfix.rNvmbr - M*cMan"dChan.cs - - ewialF?eexorN"mbar - Make
ManualChG"sm -
2410A l-11
2413A(8673C only) i-2 ;Ei l-12
2413A (867333 only) l-4 2535A l-13
2417A l-3 2540A l-14
2426A l-5 254OAOO309 & above l-15
2446A 1-6 (8673C only)
2447A l-7 254OAOO201& above I-15
2452A
-~"---- l-8 (8673D only)
I
2510A. 2511A 1-9 )2608A I-16
2512A l-10
ERRATA
Page6-5, Table 6-3:
Al AZCG.
8.9: For replacement, we the part listed in CHANGE
9.
Page 6-6, Table 6-3:
AlA2Al Cl& The part shown in CHANGE is the preferred replacement
12 for all instruments.
Page 6-7, Table 6-3:
AlA?Al A41.46: If replacement is needed, use the parts listed in CHANGE
15
Page 6-12, Table 6-3:
Reverse the part numbers and detlctiption for AlA3VR7 and AlA3VR9.
AlA4C6.10: For replacement, use the part listed in CHANGE
9.
Page 6-13, Table 6.3:
Al AC1 1.16.20: For replacement, we the part listed in CHANGE
9
AlA4C45: For replacement, we the part listed in CHANGE 9.
Page 6-25 Table 6-3:
AlA9: I; replacement is needed, use the part listed in CHANGE
5.
Page 6-26, Table 6-3:
Al Al 1: If replacement is needed, we the part listed in CHANGE
5.
NOTE
m HEWLETT
PACKARD
Printed in U.S.A
HP 8673C/D contents
CONTENTS
Sections I through III Page
and Section IV Part I Abbreviations ................................... .6~1
GENERAL INFORMATION Replaceable Parts List ........................... .6.1
INSTALLATION FactorySelectedPartEi(*) ...... tt ............... 6-l
OPERATION Parts List Backdating (f) ...................... .6-l
OPERATION VERlFlCATlON Part6 List Updating ........................... .6-l
These sections are bound separately with a separ- Ordering Information ........................... .6-l
ate table of contents. Parts Identification .............................. .6-2
Section IV, Part 2 Recommended Spares List ..... , , ................ .6-2
PERFORMANCE TESTS
Page Section VII
MANUAL CHANGES
Introduction .....
/ . , , ...................... .4-l
Introduction ..................................... .7-l
Section V
Instrument Improvement Modifications .......... .7-l
ADJUSTMENTS
Improved Key Code Debouncing (Instrumenta
Introduction ..................................... .5-l with serial number prefix 2332A). ............ .7-l
Safety Consideration& ........................... ,5-l Firmware Update Kit .......................... .7-l
Equipment Required ............................. .5-l
Identical Circuit Board Assemblies ............... .5-l Section VIII
Automated Adjustment Procedures ............... .5-l SERVICE
Factory Selected Components .................... ,5-Z Introduction ..................................... .81
Related Adjustments ............................ .5-2 Failure Modes and Service Strategy .......... . ... .8-I
Power Supply Adjustments ..................... .5-10 General........................................8 -1
10 MHz Reference OadXlator Adjustment ........ .5-12 Turn-on Errors ................................ .8-l
Reference Loop (VCXO) Adjustment ............ .5-13 OperatorErrors.. ............................ ..8 .l
M/N Loop Adjustments ........................ .5-16 Instrument Perforxsance out of
20/30 MHz (LFS) Loop Divider Bias Specification ................................ .8-l
Adjustment .................................. .5-18 Catastrophic Failures ......................... .8-l
160-240 MHz (20130 MHz or LFS Loop) Service Sheets ................................... .8-l
vco Pretune ................................. .5-20 Manual Backdating (f) .......................... .8-2
LFS Loop Notch Filter Adjustment .............. ,522 Manual Updating
YTO Pretune Digital-to-Analog Converter (Manual Changes Supplement) ........ . ....... .8-2
Adjustment .................................. .5-24 Safety Considerations ............................ S-2
YTO Driver Adjustment ........................ .5-26 Before Applying Power ........................ .8-2
YTO Loop Sampler Adjustments ................ .5-27 Warnings and Cautions ....................... .8-2
YTO Loop Offset and FM Overmodulation After Swvice Safety Checks. ................... -8-3
Adjustments ................................. ,530 Recommended Test Equipment .................. .8-3
YTO Loop Phase Detector Adjustments ......... .5-33 Service Tools, Aids and Information ............. .8-3
FM Driver Adjustments ........................ .5-36 Service Accessotiea ............................ ,823
FM Accuracy and Overmodulation Service Functions ...... +. . .................... .8-3
Adjustments ................................. ,537 Signature Analysis ............................ .8-3
SRD Bias Adjustment .......................... .6-39 Pozidriv Screwdrivera ......................... .8.3
YTM Tune Adjustment ......................... .5-42 Tuning Tools .................................. .8-3
Clamp Adjustment ............................. .5-44 Heat Staking Tools ............................ .8-3
YIG Tuned Filter Adjustment ................... .5-47 Hardware .................................... .8-I2
4.2 GHz Oscillator Adjustment. ................. .5-52 Assembly Locations .......................... .a-12
cw LO Clamp Adjustment ..................... .5-53 Parts and Cable Locations ..................... 8-12
Flatness and ALC Adjustments ................. ,636 Test Points and Adjustment Looatiooes ........ .8-13
AM Bandwidth Adjustment ..................... ,540 Service Aids on Printed Circuit Boards ........ .8-13
AM Accuracy and Meter Adjustment. ............ 5-63 Other Service Documents ..................... .8-13
Pulse Modulation Adjustment ................... .8-65 Repair and F&placement ........................ .8-13
Pulse Amplitude Control Adjustment ............ .5-71 After Repair Adjustment Procedure ........... .8-13
Sweep Out and Blanking/Marker Disassembly and Reassembly Procedures ..... *S-13
Adjustments ................................. .5-71 Top and Bottom Cover Removal .............. .8-13
Front Panel Key Cap Replacement ............ .8-13
Section VI Front Panel Switch Replacement .............. .8-13
REPLACEABLEPARTS Etched Circuits (Printed Circuit Boards). ...... ,814
Introduction .................................... .,6-l Electrostatic Discharge @SD) Precautions .... .8-15
Restored Assemblies ............................. .6-l Module Exchange Program ................... .8.15
Contents HP 861X/D
CONTENTS (oont'd)
Page Page
Non-Repairable Assemblies.. .,. . .8-E 6.Month Cleaning .8-17
Factory Selected Componenta (*) . . . t . . . .8-l-/ la-Month Cleaning , . , . , , , , . , . , . . , , , , . , t , , . , . ,8-18
Cleaning . ttt.11ttt11tt . . . ..*.*t t............. 8-17 Schematic Symbology . . . . . . . . . . . . . . . . . . . . . . . . . . .820
Cleaning Intervals . .8-17 Basic Logic Symbology . . . . . .8-20
Cleaning Solution . . . . , , t.. , , t 8.11 Complex Device Symbology t t . t . t t . . t . t . t . t . t .8-20
Top Cover Removal and Replacement .8-1'7
LIST OF ILLUSTRATIONS
Figure Page
5-l. Title Scxcen ................................ .5-2 5.33. Low Band Clamp Adjustment
5-2. Main Menu ................................ .5-2 Test Setup .............................. .&53
s-a. Adjustment Software ....................... t5-3 5.34. Maximum Power Menu .................... ,554
5.4. Power Supply Adjustment Test Setup ...... .&IO 5-35.~wBandClampResponae ................ .554
55. 10 MHz Reference Oscillator Adjustment 586. Low Band Maximum Power ............... .5-55
Test Setup .............................. .5-12 5.37. 8673D Maximum Power with K-Band
5.6. Reference Loop (VCXO) Adjustment (16-26 GHz) Amplifier ................... .,5-55
Test Setup .............................. .5-13 5.38. Flatness and ALC Adjustment Menu ...... .5-56
5-7. M/N Loop Adjustment Test Setup ......... .8-16 5-39. Typical Flatness Plot Before
5-8. 20/30 MHz (LFS) Loop Divider Bias Adjustment ............................. ,557
Adjustment Teat Setup .................. ,518 6.40. Flatness Adjustment Display .............. ,558
5-9. LFS Loop Notch Filter Adjustment 5.41. Flatness and ALC Adjustment
Test Setup .............................. .5-22 Test Setup .............................. .5-59
510, YTO Loop Sampler Adjustment 5.42. AM Bandwidth Adjustment Test Setup .... .560
T&Setup.. ........................... ..5-2 7 5.43. AM Accuracy and Meter Adjustment
5-n Sampler Frequency Response.. ............ ,528 Teat Setup .............................. .5-63
5.12. YTO Loop Offset and FM Overmodulation 5.44. Bias-2 DAC Adjustment Test Setup , ....... .5-66
Adjustment Test Setup .................. .5-30 5-45. Series Pulse Width Adjustment
6-13. YTO Loop Offset Adjustment Teat Setup ............................... .5-66
Wavefoma ............................. ,531 M6. Series Pulse Width Waveform .............. .5-67
5-14. YTO Loop Phase Detector Adjustment 547. Pulse Shunt Adapter ....................... E-68
Ted setup .............................. .5-88 5.48. AIL Sample Pulse Adjustment Setup ...... .5.69
6-16. Spectrum Analyzer Display of Phaee 5.49. ALC Sample Pulse Waveform .............. E-70
LockedLoopEain ....................... ,684 5.50. Pulse Program Menu ...................... .5-71
5-16. FM Driver Adjustment Test Setup ......... .5.36 5.51. Pulse Amplitude Control Band
5-17. FM Accuracy and Overmodulation We&Menu ............................ ..S? 2
Adjustment Test Setup .................. .6-37 E-52. PAC Adjustment Menu .................... .5-73
5.18. Format for Entering SRD Bias 558. Pulse Scan Menu .......................... ,674
Voltages for 8673D ...................... .5-39 5.54. EraphRoutieehintout ................. ...5-15
8.19. Gate Voltage Adjustment for 867330 ......... K-40 6.55. Print Routine Printout .................... .5-75
5.20. SRD Bias Adjustment Test Setup .......... ,540 5.56. Pulse Amplitude Control Adjusltment
5.21. Optimum YTM Response .................. : .5-42 Test Setup ........... .,................... .5-76
5.22. YTM Tune Adjustment Test Setup . , . , . , , . ,5-43 5.57. Sweep Out and 13lanking/Marker
6.28. Power Clamp Adjustment Test Setup ...... .6-44 Adjustment Test Setup .................. .577
5-24, Utility Menu .............................. .5-45 5.58. Sweep Out Waveform ..................... .578
6.25. Maximum Power Tests Menu .............. .5-46 5.59. Marker Waveform ......................... ,578
I
5-26. Maximum Power for 8673D ................ .5-46
5-27. PT'P Adjustment Test Setup ............... ,547 6.1. HP 8673C/D Parts Identification . . .6-107
5.28. YTF DAC Adjustment ..................... .5-48 6-2. Interconnecting Parts Identification . . . .&IO8
5-29. YTF Passband Response .................. ,549 6-8. Upper Unit Overall Parts Identification. . . .6-109
5.30. Maximum Power Menu .................... .5-50 6-4. Upper Unit Cabinet Pati Identification . .6-110
5-81. Maximum Power, Normal Mode 6-6. Upper Unit Front Panel Parts
for 8673D ............................... .5-51 Identification . . . . . . . . .6-111
5-32. 4.2 GHz Oscillator Adjustment 6.6. Al Microwave Circuits Parts
Test Setup .............................. .5-52 Identification . . . . . . . . . . t I . . .6-112
iv
HP 8673C/D
LIST OF ILLUSTRATIONS (cont'd)
Figure Page Figure Page
6-l. Al Card Cage Parts Identification ..... .6-118 8-22. HP 8673C/D Power Output Teat Setup .. .8-41
6-8. Al Pulse Circuits Parts 823. HP 8673C/D Low Band Power Plot ..... .8-41
Identification ....................... .6-114 &24. HP 8673C High l3and Power Plot ....... ,8-42
6.9. A3 Power Supply and RF Source B-25. HP 8673D High Band Power Plot ....... .8-42
Parts Identification. ................. .6-115 8-26. HP 8673C/D Overall Troubleshooting,
6-10. A3 RF Source Parts Identification ...... .6-l 16 Block Diagram ....................... .8-43
6-11. A3 Rear Panel Parts Identification ..... .6.117 8-27. HP 8673C/D Time Base Reference,
6.12. A3 Power Supply and Rear Panel Block Diagram ....................... .8-46
Parts Identification, ................. .6r118 8-28. 80 kHz Reference, A2A5TP2 ....... . .... .8-51
6.13. A3 Fan Assembly Parts Identification .62119 8.29. A2A5TP3, A2A3 Teat Switch HIGH ..... .8-62
6-14. P/O A2 Controller and Rear Panel a-30. HP 8673C/D RF Phase Locked Loope,
Parte Identification. ................. .6-120 BlockDiagram........................8-5 5
6-15. P/O A2 Controller Assembly 8-31. FM Amplifier Check Initial Teat Setup .. .8-57
Parts Identification .................. .6-121 3.32. HP 86736/D YTO Loop,
Block Diagram ....................... ,857
6-16. YTO Loop Parta Identification ......... .6-122 833. YTM Simplified Block Diagram,, ....... .8-58
6.17. YTO and Reference Oscillator 8-34. sqwgging ............................. .8-58
Parts Identification. ................. .6.123 8.35. Pulse/YTM Driver Assembly
6-18. Lower unit Overall Parts Parta Location ....................... .8-68
Identification ....................... .6-124 8-36. YTM Power Output Check
6.19. Lower Unit (A5) Cabinet Parts Test Setup. ........................... es.59
Identification ....................... .6-126 e-37. YTM Power Output Plot ................ ,869
6.20. Lower Unit Front Panel Parts 838. YTM Bias Label ........................ .8&O
Identification ....................... .6-l% 8-39. Peaker DAC Ramp Output .............. .8-61
6-21. Lower Unit Card Cage Parta 8-40. Final Output Power Check Teat Setup ... .8-61
Identification ....................... .6-127 8.41. HP 8673C/D Power Output Plot,
6-22. Lower Unit Rear Panel Parts K Band Amplifier Out, Normal Mode .. .8-62
Identification ....................... .6-128 8-42. HP 86736/D Power Output Plot,
6-23. Lower Unit Power Transformer and K Band Amplifier Out, Bypass Mode .. .8-62
Regulator Parts Identification ....... .6-129 8-43. HP 867333 Power Output Plot,
K Band Amplifier In, Normal Mode ... .8-63
8.1. Front Panel Pushbutton Stitch 8-44. HP 8673D Power Output Plot,
Assembly ............................ ,8-13 K Band Amplifier In, Bypass Mode ... .8-63
8-2. Pushbutton Switch Support Anvil. ...... .8-14 S-45. HP 8673C/D Low Band Power Plot ..... .8-64
8-3. Heat Staking Tip ....................... .8-14 8.46. HP 8673C/D Microwave Signal Path,
8.4. Typical Assembly for Heat Block Diagram ....................... .8-67
Staking Operation .................... .8-16 a-47. External ALC Check Test Setup ........ .8-68
8-5. Basic Logic Symbols and Qualifiera ..... .8-21 E-48. AM Check Test Setup. .................. ,849
8-6. Indicator Symbols. ..................... .8-22 8-49. HP 8673C/D ALC Low,
8-7. Contiguous Blocks,. .................... ,823 Block Diagram ....................... -8.71
8-S. AND Dependency Notation . +........... .8-23 8-50. P&e Modulation Waveforms ........... .8-72
8-9. Addrees Dependency Notation .......... *E-23 S-51. Pulse Modulation Initial Check
S-10. OR and Free Dependency Notation. ..... ,824 Test Setup ............................ .8-72
8.11. Common Control Block ................. .8.24 8-62. Pulse Shunt Adapter ................... .8-72
8-12. Quad D-Type Latch (Combined). ......... 8-24 as. Pulse Modulation Check
8-13. Quad D-Type Latch (Individual) ........ .8-24 setup.. ............................. ,.a-73
8.14. Shift Register .......................... .8-25 8.54. Pulse Driver Board Output and
8.15. AND-OR Selector ....................... .8-25 Shunt Pulses .......................... .8-74
S-16. UP-DOWN Counter ..................... ,8-26 S-55. Pulse Driver Board Input and
8.17. Quad D-Type Latch ..................... .&26 SeriesPulsea ........................ ..8-7 5
8-18. HP 8673C/D Aasembli& and 8-56. B&Tee .............................. ..8-7 6
Subassemblies ....................... .8-28 E-57. Pulse Driver Board Input Pulse and
S-19. HP 8673C/D Simplified Block sample ~ulae ......................... .8-77
Block Diagrams ...................... .8-29 8-58. A5 Pulse Modulation Check Setup. ...... .8-78
8.20. HP 8673C/D Baseband Frequency 8-69. P&e Driver Board, Input and
Teat Setup ............................ .&38 Shunt Pulaea . . . ....................... a79
8.21. HP 8673C/D FM Test Setup ............ ,839
contents HP 86736/D
LIST OF ILLUSTRATIONS (cont'd)~
Figure Page Figure Page
8-60. Pulse Driver Board, Input and 8-216. VCO 160.240 MHz Assembly
Series Pulses . .8-79 Schematic Diagram &215
8-61. Bias Tee . . .. . .8-80 8.217. A3A5 DAC Assembly
8-62. Pulse Driver Board, Input Pulse and Component and Teat point
SamplePulae * *... . . ..*...**....*.8-81 Location . .8-217
8-63. HP 8678C/D Pulse Modulation, 8-218. Digital to Analog Converter Assembly
Block Diagram , *. . . . ,841 Schematic Diagram . . . .8217
8-64. Front Panel Keyboard and Indicator 8-219. ASA YTO Driver Assembly
Block Diagram . . .8-82 Component and Test Point
8-65. M/N Phase Detector, LFS Loop DAC Location . 8-219
and 20/30 Divider Block Diagram.. .8-84 8.220. YTO Driver Assembly
8.66. Schematic Diagram . . .8-219
A5 Downconverter Microprcceaaor/
Controller Block Diagram ,845 8-221. A3A9A5 Sampler Assembly
8-67. Sample Error Printout . . . . .8-104 Component and Test Point
8.68. HP 9825A and HP 85F Sample Location . . . .8-221
PrOgKam L&ng.. . . 8-105 8.222. P/O YTO Loop Assembly
Schematic Diagram . . . .8-221
8-69. HP 8673WD Controller Assembly,
Block Diagram . . . .8-127 8-223. A3A9A4 YTO Phase Detector Assembly
8-201. A3AlAl Reference Phase Detector Component and Test Point
Assembly Component and Test Location . . .1. . . . .8-223
Point Location . . ,. , , . , , .8-201 8-224. P/O YTO Loop Assembly
Schematic Diagram . . . . . .8-223
8.202, Reference Phase Detector Assembly
Schematic Diagram , , , . , . , , , , . , , . , .8-201 8-225. A3A7 YTO/l?M Coil Driver Assembly
S-203. A3A1A2 100 MHz VCXO Assembly Component and Teat Point
Component and Test Point b&ion . . ,,. t. . . t . . J-225
Location tttttttttti..... <. . 8-203 8.226. YTO/FM Coil Driver Assembly
8.204. 100 MHz VCXO Assembly Schematic Diagram , , , , , . , t *, . , . , . ,8-225
Schematic Diagram , , , . , , , , . . t . .8-203 8-227. AlA2Al Detector/!&C Assembly
S-205. A3AIA3 M/N Phase Detector Assembly Component and Teat Point
Component and Test Point tocation . . .&227
Location , , , . , t , t S-205 8-228. Detector/ALC Assembly
8.206. M/N Phase Detector Assembly Schematic Diagram . .8-227
Schematic Diagram . . . .8-205 8.229. AlA Pulse Driver Processing Assembly
8.207. A3AlA4A2 M/N VCO Board Assembly Component and Test Point
Location . . . . . . .. . .8-229
Component and Teat Point
Location .8-207 E-230. P&s Driver Processing
8.208. M/N VCO Assembly Assembly Schematic . . . .8-229
Schematic Diagram t t t S-231. AlA YIG Driver Board Assembly
. .8-207
8.209. A3AlA5 M/N Output Assembly Component and Teat Point
Component and Teat Point Location . .8-281
Location t.t,ttt.ttt
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