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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 8.210. M/N Output Assembly Component and Test Point
Schematic Diagram . ., . , . , . .8-209 Location . . . . . . .8-231
8-211. A2A5 20/30 Divider Assembly S-233. YIG Driver Assembly
Component and Test Point Schematic Diagram :. . . . . .8-231
Location . . . .8-211 8-234. AlA Detector Board Assembly
8-212. 20/80 Divider Assembly Component and Test Point
Schematic Diapram . . . . . . .8-211 Location . . . . . . . .8-288
8-213. A2A4 20/30 Phase Detector Assembly S-235. AlA14A1 Bias Board Assembly
Component and Teat Point Component and Test Point
Location . . . . . . . .8-213 Location . . . . . . S-233
8.214. 20/30 Phase Detectcr Assembly 8-236. RF Filter Circuits Component
Schematic Diagram , . , , . , . . , . , , . , S-213 Location (86730 . . . . .8-284
8.215. A2A3 VCO 160-240 MHz Assembly 8-237. P/O RF Filter, RF Amphfier, and
Component and Test Point D&c& Amplifier Circuits, 8673C
Location * * * . t t . , t HP 86732/D Contents
LIST OF ILLJJSTRATIONS (cont'd)
Figure Page Figure Page
8-238. RF Filter Circuits Component 8-261. RAM Assembly
Location (867311) .8-236 Schematic Diagram .8-259
8.239. P/O RF Filter, RF Amplifier, and 8-262. A2A9 Frequency Output -
Detector Amplifier Circuits HP-IB Assembly Component and
(See also Figure 8-237) .8-237 Test Point Location. , .8.261
8.240. AlAl Attenuator Driver Board Assembly 8-263. Frequency Output - HP-IB Assembly
Component and Test Point Schematic Diagram .8-261
Location .8-239 8-264. A2A7 I/O Assembly Component
8.241. Attenuator Driver Assembly and Test Point Lwation, Part 1 .8-263
Schematic Diagram .8-239 8-265. I/O Assembly Schematic
8-242. AlA SRD Bias Board Assembly Diagram, Part 1 .8-263
Component and Test Point 8-266. A2A7 I/O Assembly Component
Location .8-241 and Teat Point Location, Part 2 .8-265
8.243. SRD Control Assembly 8.267. I/O Assembly Schematic
Schematic Diagram . .8-241 Diagram, Part 2 .8-265
8-244. AlA. Function Board Aaeembly 8-268. A4Al Front Panel Assembly
Component and Test Point Component Location .8-267
Location .8-243 8.269. A4 Front Panel Display
8-245. Function Board Assembly Schematic Diagram , .8-267
Schematic Diagram .8-243 8.270. A3Al Rectitkr Assembly
8-246. AlA Meter Board Assembly Component and Test Point
Component and Test Point Location . . . . . . . . . . . . . . . . . . . . . . . . . . ...8-269
tocation J-245 8-271. Rectifier Assembly
8-247. Metering Control Assembly Schematic Diagram *. , .8-269
Schematic Diagram .8-245 8.272. A3A.3 Positive Regulator Assembly
8-248. AlAS DAC and Enable Board Assembly Component and Test Point
Component and Test Point Location . , .a-271
Location .8-247 8.273. Positive Regulator Assembly
8.249. DAC and Enable Assembly Schematic Diagram .8-271
Schematic Diagram .8-241 8-274. A3A4 Negative Regulator Assembly
8.250. P/O A4Al Front Panel Assembly Component and Test Point
component Lo ca ti on .8-249 Location . . .8-273
8-251. A4 Front Panel Keyboard 8-275. Negative Regulator Assembly
Schematic Diagram .8-249 Schematic Diagram ,8-273
8.252. A2A2 Key Code Assembly 8-276. ASA Detectcr/ALC Assembly
Component Location .8-251 Component and Test Point
8.253. Key Code Assembly Location tt .8-274
Schematic Diagram , t t , . .8-251 8-277. A5A6 Switch Driver Assembly
8.254. A2A1 Panel Driver Assembly Component and Teet Point
Component Location t .8-253 Location t ,t , .8-274
8.255. Panel Driver Assembly 8-278. Detector/ALC Assembly
Schematic Diagram .8-253 Schematic Diagram , t, .8-275
8-256. A2A8 Microprocessor Board Assembly 8.279. A5A18Al Pulse Input Switch Board
Component and Teat Point Assembly Component Location .8-276
Location t t t t t t .8-255 8.280. A5A4 Pulse Driver Processing Assembly
8.257. Microprocessor Assembly Component and Test Point
Schematic Diagram .8-255 Location t. tt tt .8-276
8.258. A2All Ilom Assembly Component 8-281. Pulse Driver Processing Assembly
Location .&257 Schematic Diagram ,t,, .8-277
8.259, ROM Assembly 8.282. A5A7 YIG Driver Board Assembly
Schematic Diagram *. t .&257 Component and Teat Point
8.260. A2AlO RAM Assembly Location .,I,,, .8-279
Component and Test Point 8283. A5 YIG Driver Assembly
Location tt .8-259 Schematic Diagram t, .8-279
vii
contents HP 8673C/D
LIST OF ILLUSTRATIONS (cont'd)
Figure Page Figure Page
8.284. A5A2A2 D&&x Board Assembly a-299. +28V, +ZOV, and +15V Power Supply
Component and Teat Pcdnt Schematic. .8-295
Location . .8-281 8-300. A5A10 Power Supply Assembly
8.285. Detector Assembly Component and Test Point
Schematic Diagram t*t*tt * ttt*ttttt ..8-281 Location .8-297
8-286. ASAl Front Panel Assembly 8-301. +5V, -1OV, and -40V Power Supply
Component Location . . .8-283 Schematic Diagram ;. .8-297
8-287. A5 Front Panel Board Assembly 8.302. wnit Separation . . . . . . . . . . . . . . . . . . . . . ...8-298
Schematic Diagram . . .8-283 8.303. A3 Transformer and Filter Capacitor
8-288. ASA Switch Driver Assembly Rsmover . . . . . . . . . . . . . . . . . . . . . . . . . . ...8-800
Component and Test Point 8.304. Al RF Output Assembly -
Location . . .`. .8-285 YTM Relays and Attenuator .8301
8-289. Switch Driver Board Assembly e-305. Al RF Output Assembly -
Schematic Diagram . .8-285 Pre Amp and Power Amp . .8-302
8.290. A5A.3 Function Board Assembly 5306. Location of YTO Mounting Screws .8-302
component and Teat Point 8.307. YTO Loop in Service Position .8-502
Location .8-287 8.308. A5 Card Cage and Processor
8-291. A5 Function Board Assembly Board in Service Position . . .8-303
Schematic Diageram . . . . . . . . . . . . . . ...8-267 S-309. A5 Power Transformers .8-303
8-292. ASA Microprocessor Assembly 8.310. Top View, Upper Unit Component
Component and Test Point Location x305
Location . .8-289 8-311. Top View, Upper Unit DCU and
8-293. A5 Microprocessor Assembly RF Covers Removed -
Schematic Diagram .8-289 component Locatioion * * . . * . .8.305
8-294. A5A5 DAC and Enable Assembly 8.312. Top View, Upper Unit,
Component and Test Point Test Point Location,. .,.,., .8-305
Location . . . . .8-291 8-313. Bottom View, Upper Unit,
8-295. A5 DAC and Enable Assembly Component Location . . .8-SO5
Schematic Diagram .8-291 8-314. Bottom View, Lower Unit Teat Point
8-296. Low Band RF Chain and Component Location .8-307
Component Location . . . . . . . . . . . . . . ...6-293 8.315. Bottom View, Lower Unit
8.297. Low Band RF Chain Component Locations , , , , , *. , t , , , . .8307
Schematic Diagram .8-293 8316. Top View, Lower Unit -
8-298. A5AlO Power Supply Assembly Component Location . .8-307
Component and Test Point
Location . * * .a-295
TABLES
Table Page Table Page
6-l. Factory Selected Components .............. .5-4 8.5. Listing of All M and N Numbers and
5-2. Performance Test Failure and Resulting Frequencies ................... ,8-46
Required Action .......................... .5-5 8.6. LFS lK-8M Inputs ....................... .&52
6-3. PoshRepair Adjustments ................... .5-6 8.7. LFS 1K--8M Inputs ....................... .8-52
6-4. YTF Band Adjustments ................... ,549 8.8. Ml-M6 and Nl-N5 Inputs .................. .8-54
6-l. Part Numbers for Exchange Assemblies .... .6-2 8.9. Ml-M6 and Nl-N5 Outputs ................ .&54
6-2. Reference Designations and 8.10. DAC! 1.4800 MHz Inputs ................... ,856
Abbreviations. ........................... .6-3 8.11. DAC l-4800 MHz Outputs ................. ,856
63. Replaceable Parts .......................... .65 8.12. Band Numbers and Frequencies ........... ,868
6-4. Code List of Manufacturers ............... .6-106 8.13. SRD Bias Voltages ........................ ,860
8-l. Schematic Diagram Notes .................. .8-4 8.14. HP 8673C Power Failure Modes. ........... .8-64
8-2. Service Functions ......................... .8-12 8-15. BP 8673D Power Failure Modes ........... .8-65
8-3. Etched Circuit Soldering Equipment ....... .8-16 8.16. Switch Driver ASAB Checka ............... ,846
8-4. Front Panel Status Annunciators ........... S-34 8.17. Switch Driver Checkout ................... .8S7
Table Page Table
8-18. Power Up Tests and Error Messages .8-81 8-a4. Frequency Diagnostic Input Lines
8.19. Key Code Patterns.. t t t t t t I8.82 Signatures ......................... ..8.10 0
8-20. Signal Conditions for Front Panel 8-35. Frequency Output-HP-IB Ammbly
Keyboard to Front Panel Indicators Diagnostic .......................... .8-100
Operation .8-83 8-36. HP-IB Diagnostic Output Lines
8.21. Diagnostic Tests .8-86 Signatures.. ....................... ..8-10 2
s-22. MPUAddreaaLine andaddress 8-37. HP-IB Diagnostic Input Lines
Decoder Signatures. .8-88 Signatures.. ....................... ..8.10 2
8.23. Diagnostic ROM (U3) Signatures , *, ,8-88 838. HP-It3 Diagnostic Signatures .......... .8-103
8-24. MPU Signatures , . , . *. *, .8$8 8-39. Miscellaneous Signatures .............. .8-106
8-25. Timing, Interrupt and Buffered 8.40. Error Codes and Associated Lines. ..... .8-106
Data Circuits Signatures .8-90 8-41. I/O kssembly Diagnostic Signatures
8-26. MPU Timer and IRQ Encoder (with Special Extender Board) ....... .8-107
Signatures . .8-90 8-42. I/O Assembly Diagnostic Signatures
8.27. Frequency Data sigeaturea * * * .8-92 (without Special Extender Board) .... .8-111
8-28. Front Panel Driver Assembly 8-43. Key Code Patterns ..................... .8-116
Signatures .8-92 8-44. Processor Assisted Diagnoaiic
S-29. Divide-by-Three Circmt Signatures 8-94 Signatures.. ....................... ..8.118
8-30. RAM Assembly Signatures .8-95 8.45. Freerun Diagnostic Signatures .......... S-121
8-31. ROM Error Codes .8-96 8-46. DAC and Enable DiagGatic
832. ROM and Converter Signatures.. .8-97 Signatures ......................... ..8-12 4
8-33. Frequency Diagnostic Output 8-41. A6AlO Voltage Checks ................ .8-129
Lines Signatures ,t ,t, , t .8-100
ix
Table of Contents HP 86132/D
A88ElnblY Osserlptton
Assemblias vs. Service Sheet List
Ser.Sheet A88ombly Description SerShest
I)j
AlAl Attenuator Wriver Board Asaemhly 18 A3AIA6 M/N Reference Motherboard I-3.5
AlA Wet&or Module Assembly 14,ll Assembly
AlA2Al AEC Board Assembly 14,17 ABAlAl Reference Housing Assembly
AlA2A2 Detector Board Assembly 17 AU2 Not Assigned
AM9 Function Board Assembly 20 A3.43 Positive Regulator Assembly 54
AlA Pulse Driver Board Assembly 15 AsA Negative Regulator Assembly 36
AlA DAC and Enable Board Assembly 22
AlA Meter Board Assembly 20.40 ABA6 DAC Assembly 9
ASA YTO Driver Assemblv 10
AlA YTM Driver Board Assembly 16 ABA7 FM Driwr Assemhly- 13
AlAB SRD Bias Board Assembly 19 A3A8 10 MHz Reference Oscillator 1
AlAQ Preamp Assembly 14.16 A3A9 YTO Loop Assembly 11,12
AlAlO YTM Aaaembly 16 A3A9Al Directional Coupler Assembly 13
AlAlOAl YIG Heater Control Assembly 16 A3A9.U YTO Interconnect Assembly 11.13
AlAll Power Amplifier Assembly 16
AlA Motherboard Aeeembly 14.16J8.22, A3A9AS 2.0 6.6 GHz YTO Assembly 13
30,31,40 ASAgA YTO Phase Detector Assembly 12
AlAlS Terminal Strip 15,36,37,40 A8A9A5 Sampler Assembly 11
AlA Amp Bias Board Assembly 17 A3A9A6 Attenuator Assembly 13
A2Al Panel Driver Board Assembly 25 A3A9Al 6.2 GHz Low Pass Filter 13
A2A2 Key Code Board Assembly 24 ASAIO Motherboard Assembly L3.610,
A2.43 VCO Assembly 8 1214.21.23,
A2A4 Phase Detector Assembly 7 26.24-31,
AZ.46 Divider Assembly 20/30 6 a%36
A2A6 Not Assigned A4A1 Pront Panel Board Assembly 20,22,25,
82.40
A2A7 I/O Board Assembly 30,31 ASAl Front Panel Board Assembly 41,42,44
A2AB
A2A9
A2AlO
Microprocessor
Frequency/HP-lB
Board Assembly
RAM Board Assembly
Board Assembly
26
29
28
A5A2
A5A2A1
A5A2A2
Detector Module Assembly
AM: Board Assembly
W&e&r Board Assembly
36,39
36,39
39
6
A2All ROM bard Aseembly 21 A5A8 Function Board Assembly 42
AZA12 Not Assigned A5A4 Pulse Driver Board Assembly 37
A2AlY Motherboard Assembly &8,10,20.32 ASA DAC and Enable Board Assembly 44
A2A14 Rear Interconnect Board Assembly 24,29,31 A6AS Switch Driver Board Assembly 36.41
A2A15 HP.IB Connector Board Assembly 29 A5Al YTM Driver Board Assembly 38
A3Al Rectifkr Assembly 33 .45AB Motherboard Assembly 36-38.40.44,
ABAlAl Reference Phase Detector 1.2 46.47
Assembly
A3AlA2 100 MHz VCXO Ausemblv 2 A5A9 Microprocessor Board Aaaembly 43
A3AlA3 M/N Phase Detector Ass;mbly 3 A5A10 Power Supply Board Assembly 45.47
A3AlA4 M/N VCO Assembly 4 A5All Regulator 2 Board Aseembly 46
A3AlA4Al VCO Resonator 4 A5A12 Regulator 1 Board Assembly 46,41
A3AlA4A2 VCO Board Aaaembly 4 A5A13 Pulse input Assembly 31
A3AlA6 M/N Dutwt Assembly 6 A5A13Al Pulse Input Switch Board 31