HP-1707A-Manual-75Mhz-Scope 电路图.pdf

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1、RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 _ , _ _ OPERATING AND SERVICE MANUAL MODEL 1707A OSCILLOSCOPE SERIALS PREFIXED: 1117A- Refer to Section VII for instruments with other Serial Prefixes. Refer to Section VI I for instruments with the following Standard Options: 001, 002, 003, 006, 007,

2、011, 012, 090, 091, 092, 093, 094, 602, 607, 611, and 631. HEWLETTPACKARO COMPANY/COLORADO SPRINGS DIVISION 1900 GARDEN OF THE GOOS ROAD, COLORADO SPRINGS, COLORADO, U .S.A. Manual Part Number 01707-90901. Microfiche Part Number 01707-90801. PRINTED: APR 1971 RadioFans.CN 收音机爱 好者资料库 Table of Content

3、s TABLE OF CONTENTS Section Title Page I. II. 111. IV. ii GENERAL INFORMATION . . 11 1-1. Introduction . 11 1-4. Description . 1-1 1-5. Introduction . . 1-1 1-8. Vertical Circuits . 11 1-12. Horizontal Circuits . 11 1-18. Cathode Ray Tube . 11 1-21. Warranty . . 1-2 1-23. Instrument and Manual Ident

4、ification . 1 2 1-27. Inquiries . 12 INSTALLATION . 2-1 2-1. Introduction . 2-1 2-3. Initial Inspection . 2-1 2-6. Claims . 2-1 2-8. Preparation for Use . 2-1 2-9. Three-Conductor AC 2-11. 2-13. 217. 2-19. Power Cable . . . . . . . . . . . . . 2-1 DC Plug . 2-1 Power Requirements . 2-1 Battery Insta

5、llation . 2-2 Repacking for Shipment . 2-2 OPERATION . 3-1 3-1. Introduction . _ . _ . 3-1 3-3. Controls and Connectors . 3-1 3-25. Battery Recharge Operation . . 3-2 3-27. Preoperational Adjustments . 3-3 3-28. Focus and Astigmatism 3-29. 3-31. 3-33. 3-35. 3-37. 3-40. 3-42. Adjustment . _ . 3-3 Ini

6、tial Turn-on . 3-3 Operating Procedures . . 3-3 Operators Performance Check . _ . . . 3-3 Operating Information . . . . . . . . . 3-12 Auto Versus Norm . . . . . . . . . 3-12 AC Versus DC . . . . . . . . . . . 3-12 Delayed Sweep . . . . . . . . . . . 3-12 PRINCIPLES OF OPERATION . . 4-1 4-1. Introdu

7、ction . . . . . . . . . . . . . . . . 4-1 4-3. General Theory . . . . . . . . . . . . . . 4-1 4-6. Block Diagram (Schematic 1) 4-1 4-7. Input Attenuator . 4-1 4-9. Vertical Preamplifier . . . . . . . . 4-1 4-11. Delay Line . . . . . . . . . . . . . . . . 4-1 4-13. Vertical Output Amplifier 4-1 4-15.

8、 Trigger Circuits . . 4-17. Main Integrator . . 4-22. Hold-off and Comparator . . 4-25. Delayed Integrator . . 4-28. Horizontal Model Assembly . . 4-32. Power Supply Block Diagram 4-33. 4-39. 4-42. 4-44. 4-46. (Schematic 2) . . Low Voltage Power Supply . . High Voltage Power Supply . . Gate Assembly

9、 . . Detailed Circuitry . . Input Attenuators (Schematic 3) 41 4-1 4-2 4-2 4-2 4-2 4-2 4-2 4-3 4-3 4-3 Section 4-47. 449. 4-51. 4-53. 4-54. 4-57. 4-62. 4-65. 4-67. 4-70. 4-72. 4-74. 4-76. 4-82. 4-84. 4-85. 4-88. 4-92. 4-95. 4-98. 4-100. 4-101. 4-103. 4-107. 4-112. 4-113. 4-115. 4-118. 4-119. 4-124.

10、4-129. 4-130. 4-132. 4-135. 4-136. 4-139. 4-141. 4-143. 4-145. 4-146. 4-148. 4-150. 4-153. 4-154. 4-156. 4-158. 4-160. 4-161. 4-163. 4-165. Model 1707A Title Page General Information . . . . . . . . 4-3 Input . . . . . . . . . . . . . . . . . . 4-3 Attenuator Stages . . . . . . . . . . 4-3 Vertical

11、Preamplifier (Schematics 4, 5, 6, 7) . . . . . . . . . . . . . . . . 4-3 General Information . . . . . . . . 4-3 Input Stages (Schematic 4) 4-3 Channel Switches (Schematic 5). . 4-4 Channel A Sync Amplifier 4-4 Composite Sync Amplifier 4-4 Delay Line . . . . . . . . . . . . . . . . 4-4 Vertical Outp

12、ut Amplifier 4-4 Beam Finder . . . . . . . . . . . . . . 4-4 Steering Logic Circuit (Schematic 7) . . . . . . . . . . . . 4-4 Display Switch . . . . . . . . . . . . 4-4 Trigger Assembly (Schematic 8, 9) . . 4-4 General Information . . . . . . . . 4-5 Main Trigger (Schematic 8) . . . . 4-5 Current St

13、eering Switches (Schematic 9) . . . . . . . . . . . . 4-5 Bright Line Auto Circuit . . . . . . 4-5 Delayed Trigger (Schematic 8) . . 4-5 Main Integrator (Schematic 10) . . . . 4-5 General Information . . . . . . . . 4-5 Input . . . . . . . . . . . . . . . . . . 4-5 Comparator . . . . . . . . . . . .

14、 . . 4-5 Main Sweep Time Assembly (Schematic 11) . . . . . . . . . . . . 4-6 General Information . . . . . . . . 4-6 Operational Amplifier . . . . . . . . 4-6 Delayed Integrator (Schematic 12) . . 4-6 General Information . . . . . . . . 4-6 Comparator . . . . . . . . . . . . . . 46 Delayed Sweep Tim

15、e Assembly (Schematic 13) . . 4-7 General Information . . . . . . . . 4-7 Operational Amplifier . . . . . . . . 4-7 Holdoff and Comparator (Schematic 14) . . . . . . . . . . . . 4-7 General Information . . . . . . . . 4-7 Ramp Comparator . . . . . . . . . . 4-7 Holdoff Amplifier . . . . . . . . . .

16、4-7 Comparator . . . . . . . . . . . . . . 4-7 Horizontal Model Assembly (Schematic 15) . . . . . . . . . . . . 4-8 General Information . . . . . . . . 4-8 Display Switch . . . . . . . . . . . . 4-8 Blanking Circuit . . . . . . . . . . . . 4-7 Horizontal Preamplifier Assembly (Schematic 15) . . . .

17、. . . . . . . . 4-8 General Information . . . . . . . . 4-8 Input Circuit . . . . . . . . . . . . . . 4-8 Differential Amplifier . . . . . . . . 4-8 Horizontal Output Amplifier (Schematic 15) . . . . . . . . . . . . 4-8 General Information . . . . . . . . 4-8 Output Amplifier . . . . . . . . . . 4-8

18、 Gate Assembly (Schematic 16) . . . . 4-8 Model 1707A Table of Contents TABLE OF CONTENTS (Contd) Section Title Page v. 4-166. 4-168. 4-170. 4-172. 4-174. 4-175. 4-177. 4-179. 4-181. 4-183. 4-185. 4-189. 4-190. 4-193. 4-196. 4-200. 4-205. 4-206. 4-208. 4-210. 4-213. 4-215. General Information Intens

19、ity Control . . Summing Amplifier . . Multivibrator . . Low Voltage Power Supply (Schematic 18) . . General Information A 1 Power Module A2 Line Rectifier . . A3A 1 Low Voltage Mother Board . . Line Switching . . A4 Gate Assembly . . Low Voltage Power Supply (Schematic 19) . . General Information .

20、. A3A 1 Low Voltage Mother Board . . Low Voltage Converter 48 4-8 4-8 4-8 4-8 4-8 4-8 4-8 4-9 4-9 4-9 4.9 4-9 4-9 Assembly . . . . . . . . . . . . . . 4-9 Low Voltage Regulator . 4-10 High Voltage Power Supply (Schematic 17) . 4-10 General Information . 4-10 High Voltage Oscillator . 4 10 CRT Cathod

21、e Voltage . 4-10 CRT Control Grid Voltage and Blanking . 4-10 CRT Post Accelerator Voltage . 4 10 PERFORMANCE CHECKS AND ADJUSTMENTS . . . . . . . . . . . . . . . . . . 5-1 5-1. Introduction . . . . . . . . . . . . . . . . 5-1 5-3. Equipment Required . . . . . . . . . . 5-1 5-5. Pozidrive Screwdrive

22、rs . . . . . . . . . . 5-1 57. HP 01701-68701 Service Kit 5-1 59. Performance Check . . . . . . . . . . . . 5 1 5-13. Adjustments . . 5-1 52 52 5-2 5-3 5-3 5-4 5-6 5 15. Performance Check Record . . 517. 5-19. 5-21. 5-22. 5-23. 5-24. 525. 526. 5-27. 5-28. 5-29. 5-30. 5-31. 5-32. 5-33. 534. 5-35. Fro

23、nt Panel Adjustments . . Front Panel Settings . . Performance Test . . Deflection Factor Risetime . . Bandwidth . . . Input Resistance . . . . . . . . . . . . 5 7 Common Model Rejection Ratio (CMRR) . . . . . . . . . . 59 Main Sweep Time . 5-10 Calibrator . . . . . . . . . . . . . . . 5-13 Main Trig

24、gering . . 5-14 Trigger Level Range and Polarity . . 5-16 External Input Resistance 5-17 Delayed Sweep Time . . 5-18 Delayed Triggering . . 5-21 Delay Jitter . . 5-22 Adjustment Procedures . . . 5-25 Section Title Page VI. 5-36. 5-37. 5-38. 5-39. 5-40. 5-41. 5-42. 5-43. 5-44. 5-45. 5-46. 5-47. 5-48.

25、 5-49. 5-50. 5-51. 552. Low Voltage Power Supply Adjustment . . High Voltage Power Supply Adjustment . . Intensity Limit Adjustment . . Y-Axis Alignment . . Gate Amplifier Response Adjustment . . Trigger Amplifier Balance and DC Level Adjustment . . Trigger Sensitivity Adjustment . Position Centerin

26、g Adjustment . Sweep Length Adjustment Main Sweep Timing Adjustment . . X 1 C Gain Adjustment . . Mag Centering Adjustment Calibrator Adjustment . . Delayed Sweep Time Adjustment . . Low Frequency Pulse Response Adjustment . . 5-25 5-26 526 5-27 5-27 5-28 5-28 5-29 5-30 5-30 5-32 5-32 5.33 5-33 5.35

27、 Input Capacitance and Attenuator Compensation Adjustment . . 5-35 High Frequency Pulse Response Adjustment . . 536 REPLACEABLE PARTS . . . . . . . . . . . . . . 1 6-1. Introduction . . . . . . . . . . . . . . . . 6-1 6-3. Ordering Information . . . . . . . . . . 6 1 VII. MANUAL CHANGES AND OPTIONS

28、7-1 7 1. Introduction . . . . . . . . . . . . . . . . 7-1 7-3. Manual Changes . . . . . . . . . . . . . . 7-1 7-5. Special Options . . . . . . . . . . . . . . 7-1 7-9. Standard Options . . . . . . . . . . . . 7-1 VIII. SCHEMATICS AND TROUBLESHOOTING . 8-1 8 1. Introduction . . . . . . . . . . . . .

29、. . . 8-1 8-3. Schematics . . . . . . . . . . . . . . . . . . 8-1 8-8. Reference Designators . . . . . . . . . . 8-1 8-12. Component Locations . . . . . . . . . . 8-1 8-14. Troubleshooting . . . . . . . . . . . . . . 8-1 8-17. Troubleshooting Aids . . . . . . . . 8-1 8-19. DC Voltages . . . . . . .

30、. . . . . . . 8-2 8-21. Waveforms . . . . . . . . . . . . . . . . 8-2 8-23. Test Points . . . . . . . . . . . . . . . . 82 8-25. Test Equipment Required . . . . . . 82 827. Service Kit . . . . . . . . . . . . . . . . 8-2 8-30. Disassembly and Assembly 8-32. 8-34. 8-36. 8-38. 8-40. Procedures . . . .

31、 . . . . . . . . . . . . 8-2 CRT Removal and Replacement. . 82 CRT Shield Removal . . . . . . . . 8-2 Vertical Module Removal and Replacement Delay Line Removal and Replacement Attenuator Removal and Replacement 8-3 8-3 8-3 iii Table of Contents List of Illustrations Model 1707A TABLE OF CONTENTS (C

32、ontd) Section 8-42. 8-45. 8-47. 8-50. 8-51 . 8-55. 8-57. Title Page Horizontal Module Assembly Removal and Replacement . . 8-3 Horizontal Mother Board Removal and Replacement . . . 8-84 Power Supply Module Removal and Replacement . . . . . . . . 8-5 General Service Information . . . . . . 8-5 Switch

33、 Maintenance . . . . . . . . 8-5 Attenuator Servicing . . . . . . . . 8-6 Parts Location Aids . . . . . . . . . . 8-6 8-59. 8-61. 8-63. 8-66. 8-67. 8-70. 8-72. 8-75. Diagram Notes . . . . . . . . . . . . 8-6 Factory Selected Components . . 8-6 Etched Circuits . . . . . . . . . . . . 8-7 Component Re

34、placement . . . . . . 8-7 Transistor Replacement Diode Replacement Logic Circuits and Symbols Basic Gates 8-7 8-7 8-7 8-8 LIST OF ILLUSTRATIONS Figure Title Page 1-1. Model 1707A Oscilloscope and Accessories . . . . . . 1-0 1-2. Instrument Serial Number . . . . . . . . . . . . 1-2 2-1. Rear Panel Mo

35、dule . . . . . . . . . . . . . . . . . . 2-1 2-2. Battery Pack Installation . 2-3/2-4 3-1. Control and Connectors 3-4/3-5 3-2. Auto and Norm Operation . . . . . . . . . . . . 3-6 3-3. Single Sweep Operation . . . . . . . . . . . . . . 3-7 3-4. Single and Dual Channel Operation . . . . . . 3-8 3-5. A

36、 + B and A -B Operation . . . . . . . . . . . . 3-9 3-6. Amplifier Balance Adjust . . . . . . . . . . . . . 3-10 3-7. Delayed Operation . . . . . . . . . . . . . . . . . 3-11 4-1. Simplified Schematic of DC to DC Converter . . . . . . . . . . . . . . . . . . . . . 4-10 5-1. Deflection Factor Test Se

37、tup 5-3 5-2. Risetime Test Setup . . . . . . . . . . . . . . . . 5.4 53. Bandwidth Test Setup . . . . . . . . . . . . . . . . 5-6 5-4. Input Resistance Test Setup . . . . . . . . . . . . 5-7 5-5. Common Mode Rejection Test Setup . . . . . . 5-9 5-6. Main Sweep Time Test Setup . . . . . . . . . 5-10

38、5-7. Calibrator Measurement Test Setup 5-13 5-8. Main Triggering Test Setup . . . . . . . . . . . 5-14 5-9. Trigger Range and Polarity Test Setup 5 16 5-10. Ext Input Resistance Test Setup . . . . . . . 5-17 5-11. Delayed Sweep Time Setup . . . . . . . . . . . 5-18 5-12. Delayed Triggering Test Setu

39、p . . . . . . . . . 5-21 5-13. Delay Jitter Test Setup . . . . . . . . . . . . . 5-22 5-14. Adjustment Location 5-37 6-1. Exploded View of Model 1707A . 6-0 8 1. Vertical Module Mechanical Parts Removal 8-2. Attenuator Removal iv 8-4 8-4 Figure Title Page 8-3. Examples of Diode and Transistor Markin

40、g Methods . . . . . . . . . . . . . . . . 8-8 8-4. Basic AND and OR Gates . . . . . . . . . . . . 8-9 8-5. Basic NANO and NOR Gates . . . . . . . . . 8-10 8-6. Logic Comparison Diagrams . . . . . . . . . . . 8-10 8-7. Basic NOR Gate Flip-Flop . . . . . . . . . . . 8-11 8-8. Triggered Flip-Flop . . .

41、 . . . . . . . . . . . . . . 8-11 8-9. Component Identification, Interior Front and Rear Panel . . . . . . . . . . . . . 8-16 8-10. Component and Assembly Locations . . . . . . . . . . . . . . . . . . 8-17 /8-18 8-11. Main Block Diagram . . . . . . . . . . . . 8-19/8-20 8-12. Power Supply Block Diag

42、ram . 8-21/8-22 8-13. 75 MHz Attenuator Component ._ Identification . . . . . . . . . . . . . . . . . . . 8-23 8-14. 75 MHz Attenuator Schematic . . . . . 8-23 8-15. Vertical Preamplifier Assembly A5A4 Component Identification . 8-24 8-16. Channel A Preamplifier Measurement Conditions and Waveforms

43、. . . . . . . . . 8-25 8-17. Vertical Preamplifier Assembly A5A4 Schematic No. 4 . . . . . . . . . . . . . . 8-25/8-26 8-18. Channel A Preamplifier Measurement Conditions and Waveforms 8-19. Vertical Preamplifier A5A4 8-27 Schematic No. 5 . . . . . . . . . . . . . . . . . 8-27 8-20. Vertical Output

44、Amplifier A5A5 Component Identification . . . . . . . . . 8-28 8-21. Vertical Preamplifier and Output Amplifier Measurement Conditions and Waveforms . . . . . . . . . . . 8-29/8-30 8-22. Vertical Preamplifier A5A4 and Vertical Output Amplifier A5A5 Schematic No. 6 . . . . . . . . . . . . . . . 8-29

45、8-23. Vertical Preamplifier Measurement Conditions and Waveforms 8-24. Vertical Preamplifier A5A4 8-31 Schematic No. 7 . . . . . . . . . . . . . . . . . 8-31 . -._.,. Model 1707A Table of Contents List of Tables LIST OF ILLUSTRATIONS (Contd) Figure Title Page 8-25. Trigger Assembly A6A2 Component Id

46、entification . . . . . . . . . 8-32 8-26. Trigger Assembly Measurement Conditions and Waveforms . . . . . . . . . . . . . . 8-33/8-34 8-27. Trigger Assembly A6A2 Schematic No. 8 . . . . . . . . . . . . . . 8-33/8-34 8-28. Trigger Assembly Measurement Conditions and Waveforms . . . . . . . . . 8-35 8-29. Trigger Assembly A6A2 Schematic No. 9 8-35 8-30. Main Integrator A6A3 Component Identification . . . . . . . . . . . . . . . . . . . 8-36 8-31. Horizonta