Ampex-ATR-100-Operation-Maintenance 电路图 维修手册.pdf

《Ampex-ATR-100-Operation-Maintenance 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Ampex-ATR-100-Operation-Maintenance 电路图 维修手册.pdf（146页珍藏版）》请在收音机爱好者资料库上搜索。

1、TABLE OF CONTENTS SECTION NO. TITLE PAGE NO. 1 GENERAL INFORMATION 1-1 1-1. DESCRIPTION 1-1 1-2. Tope Transport 1-1 1-3. Head Assembly 1-4 1-4. Control Unit 1-5 1-5. Electroni.cs Am,mhly 1-G 1-6. Power Supply 18 1-7. EQUIPMENT CONFIGURATIONS. 1 8 1-8. ACCESSORIES 1-9 1-9. Input/Output Module and Mai

2、nframe . 1 9 l 10. Remote Control Unit 1 12 1-11. SPECIFICATIONS 1 12 2 INSTALLATION. 2-1 ?-1 UNPACKING AND INSPECTION 2-1 2-2. INSTALLATION SITE 2-1 2-3. MOUNTING THE RECORDER/REPRODUCER 2 1 2-4. Cabinet Mount. 2-1 2-5. Cabinet Mounted on a Pedestal 2.3 2-6. Fixed-Rack Mount 2-6 2-7. Slide Rack Mou

3、nt 2-6 2-8. MOUNTING THE INPUT/OUTPUT MODULE ACCESSORY . 2-8 2-9. Cabinet Mount. 2-11 2 10. Rack Mount. 2 11 2-11. CHECKING CABLES AND COMPONENTS 2 11 ?.-12. CONNECTING AC POWER . 2 11 2-i3. AUDIO SIGNAL CONNECTIONS 2-13 2-14. Recorder/Reproducer lnput/0,utput Connectors . 2 13 2-i5. ! nput-Connecto

4、r Wiring 2 15 2-16. Output-Connector Wiring. 215 2-17. Input/Output Assembly Connectors 2-15 218. I nput-Connectnr Wiring 2 15 2-19. Output-Connector Wiring. 2 16 2-20. REMOTE CONTnOL UNIT INSTALLATION ;. rn 2-21. lf.lTIAL ADJUSTMENTS 2-19 2-22 . T, ;-11tabie Pos,tioning for Reel Size . 2-19 2-23. C

5、r.:,11t;1, tJnit H.e!tJr.at.inn 2-21 AMPEX 4890407 01 TABLE OF CONTENTS Continued SECTION NO. TITLE PAGE NO. 2 INSTALLATION (Continued) 2-24. Spool-Speed Selection . 2 23 2-25. Play /Ed it Mode Lockout . ?-?1 2-26. Record Mode Lockout. 2 24 2-27. Tape Timer Display Selection 2 24 2-28. Minutes, Seco

6、nds, and Tenths of Seconds Display 2-24 2-29. Hours, Minutes, and econds Display 2 25 2-30. PU RC Operation Selection 2 26 2-31. INITIAL CHECKOUT PROCEDURE . 2 29 232. FACTORY SHIPPED OPERATIONAL CONFIGURATION . 2 31 a 2-33. CHECKING OPERATING LEVEL . 231 3 OPERATION 3-1 3-1. CONTROLS AND INDICATORS

7、 3-1 3-2. PRE-OPERATING PROCEDURES. 3 1 3-3. OPERATING PROCEDURES. 3 11 3-4. Recording 3-11 3-5. fa5t Winding 3 13 3-6. Reproducing 313 3-7. Tape Timer Operation . 3-13 3-8. Sel-Synr. Funr.tion 3 13 3-9. Editing. 3-14 3-10. Spooling 3-14 3-11. Remote Control Operation 3 15 3-12. PURC Operation . 315

8、 3 13. Editing Procedures 3 15 3-14. Insert Edit 3-16 4 THEORY OF OPERATION. 4-1 4-1. FUNCTIONAL DESCRIPTION OF TAPE TRANSPORT . 4-1 4-2. BLOCK DIAGRAM FUNCTIONAL DESCRIPTION 4-1 4-3. Thread Mode 4-2 4-4. Reproduce Mode . 42 4-5. Record Mode 4-2 4-6. Spool Mode. 42 ii AMPEX 489040701 TABLE OF CONTEN

9、TS Continued) SECTION NO. TITLE PAGE NO. 4 THEORY OF OPER/ TION (Continued) 4-7. Shuttle Modes . 42 4-8. Control Unit 4-2 4-9. DETAILED THEORY OF OPERATION. 4-4 4-10. Capstan Servo Functional Description . 45 4-11. Capstan Servo Circuit Details 4-6 4 12 Capstan Tach Asst1mbly 6 4-13. Phase Comparato

10、r 46 414. Speed Reference Frequency. 46 415. Direction Logic and MDA Driver. 49 4 16. Capstan Motor Edit Offset 49 4 17. Play Mode 49 4-18. Underspeed Condition . 49 4-19. PI1ase Lock 4-H 4-20. Spool Mode . 4-10 421. Stop Mode 4 10 4-22. Roal Sorvo Functional Description 4-10 4-23. Reel Servo Circui

11、t Details 4-10 4 24. Takeup and Supply Tension Sensors 4 10 4-25. Compensation Amplifier . 4 1? 426. Pulse-Width Modulator. 4-12 427. Output Gates and M DA 4-12 4-28. Tension Arm Limit Detector 414 4-28. I ension Logic 4-15 4-30. Velocity/Acceleration Control. 416 431. Edit Offset Command . 4-16 4-3

12、2. Dynamic mergency Braking 4-16 4-33. Transport Control PWA No. 7 . 4-16 434. System Wakeup Circuit 4-18 4-.lfi. l,ontrnl f:irr.11it Op1:1ration 18 4-36. Rewind and Fast Forward Mode . 4 18 437. Spool Mode. 4. 18 4-38. Tape Lifter Operation 4 18 439. Play Mode 422 4-40. Record Mode 4-22 441. Stop R

13、ecord Mode 4-23 4-42. Thread Mode 4-23 4-43. Unthread (Stop/Edit) Mode. 4-23 444 . Edit Modes 4-23 AMPEX 4890407-01 iii TABLE OF CONTENTS Continued) SECTION NO. TITLE PAGE NO. 4 THEOnY OF OrEnATION (Continued) 445. Tension Arm Limit Detectors 4-23 4-46. Audio Control PWA No. 5 4-24 4-47. Signal Mode

14、 Selection 4-24 4-48. Latches 424 4-53. Safe Mode 425 4 54. Ready Mode. 4 26 4-55. Record Mode 426 4-56. Reproduce Mode . 4-28 4-57. Sync Mode 4-28 4-58. Input Mode . 428 459 . Wakeup Line 429 460. I I legal Speed. 4-29 4-61 IVlu lt1plexer System 429 462. Master Oscillator and Counters 4-30 4-63. Ma

15、ster Erase Bus 434 4-04. Master Dias Dus 4-3ci 4-65. Two-Speed Operation 435 4-66. Four-Speed Operation . 435 4-R7 I I legal r,eerl r1etertnr 4-35 4-68. Main Audio Functional Description. 436 4-69. Main Audio Circuit Details 439 4-70. Control Logic 439 4 71. Speed Decode Logic. 439 4 72. Erase Rampi

16、ng. 4-39 4-73. Record Ramping and PURC Logic 4-40 4-74. Record Circuits 4-44 4-75. Erase Circuit 446 476. Reproduce Circuits . 4-48 4-77. Audio Output Circuit 4 50 4-78. Input/Output Assembly (Accessory) 450 4-79. Line Input Amplifier 451 4-80. Input Siqnal Mon itorinq 451 4-81. Reproduce Mode . 452

17、 4-82. Meter Circuit Operation 4-52 4-83. Erase and Bias Voltage Confidence Indicators . 452 4-84. 15-Vdc Regulator 454 4-85. Tape Timer Functional Description . 4-54 4-86. Tape Timer Circuit Details 4-54 iv AMPF X .1R9Q.1n7 n1 TABLE OF CONTENTS Continued) SECTION NO. TITLE PAGE NO. 4 THEORY Uf OPER

18、ATION (Continued) 4-87. Tape Timer Display . 454 4-88. Tape Timer Tachometer 4-56 489. Tape Timer Arithmetic Logic 456 490. Initialization 457 491. Count-Up Mode 4.57 4-92. Count-Down Mucle 4-59 493. Tape Run Out 4-61 4-94. Power Supply Functional Description . 461 4-%. Power Supply Circuit Details

19、4-61 496. AC Supply 461 497. 20-Volt Servo Supply 4-61 4-98. 20-Volt Electronically Filtered Supply 461 499. 5-Vdc Regulated Supply 462 5 MAINTENANCE . 5-1 5-1. GENERAL 5 1 5-2. OVERALL TEST EQUIPMENT REQUIREMENTS 5-1 5-3. PREVENTIVE MAINTENANCE. 53 5-4. Cleaning 5-3 5-5. Tape Patch Cleaning. 5-3 5-

20、6. Optic81 nPvir.PS 5-4 5-7. Demagnetizing. 5-4 5-8. Scrape Flutter Idler . 5-4 5-9. Lubrication . 5-6 5-10. Head Gate Support Busing :J-0 511. Tape Lifter Arm Bushings 5-6 5-12. CONVERSION 5-7 b-13. Changing Channel Configuration . 5-7 5-14. Changing Tape Width . . 5-8 5-15. Changing Operating-Spee

21、d Pair and Master Bias Operation 5-8 5-16. Two-Speed Dual Master Bias 5 10 517. Four-Speed Master Bias 5-10 5-18. Chan11ing Input/Output Assembly Operating Configuration 5-11 5-19. Input Amp I ifier 5-11 5-20. Increasing Input Sensitivity . 5 11 AMPF.X 4890407 01 V TABLE OF CONTENTS Continued SECTIO

22、N NO. TITLE PAGE NO. 5 MAINTENANCE (Continued) 5 21. Balanced or Unbalanced Input. 5-12 5-22. Bypassing Input Transformer 5-12 5-23. Shield Grounding. 5-13 5-24. Output Amplifier. 5-13 5-25. Balanced or Unbalanced Output 5-13 526. Bvpassinq Output Transformer 5-13 5-27. Increasing Output Resistance

23、with Balanced Output . 513 5-28. Shield Grounding. 5-13 5-29. ALIGNMENT AND ADJUSTMENTS . 5 13 5-30. Audio Signal System Alignment 513 531 . Use of Alignment Tapes General Discussion. 5-14 532. Using a Flux Loop - General Discussion. 5 17 533. Head Azimuth and Phase - General Discussion 518 5-34. Op

24、erating Level General Discussion . 5-20 5-35. Reproduce Equ21lization Adjustment 5-21 5-36. Equalization Adjustment Using an Alignment Tape. 5-21 5-37. Reproduce Equalization Adjustment Using a Flux Loop 5-25 538. Reproduce Head Azimuth and Phase Adjustment 5-26 5-39. 2-Track or 4-Track Reproduce He

25、ad Azimuth and Phase Adjustment G-20 540. Full Track Reproduce Head Azimuth Adjustment 5-27 5 41. Operating Level Adjustment 5.77 5-42. 370 nWb/m Operating Level Adjustment. 5-28 543. 260 nWb/m Operating Level Adjustment. 5-28 5-44. 185 nWb/m Operatin Level Adjustment. 529 545. Record Alignment 529

26、5-46. First Speed Record Alignment. 5-30 547. Second Speed Record Alignment. 5.34 5-48. 2 I rack or 4-Track Hecord Head Azimuth and Phase Adjustment 5-36 549. Full-Track Record Head Azimuth Adjustment. 537 5-50. Sel Sync qualization and Gain Adjustment 5 38 5-51. Erasure Depth Adjustment and Measure

27、ment 5.39 5-52 . Input/Output Assembly Adjustment 540 vi AMPEX 489040701 TABLE OF CONTENTS (Continued SECTION NO. TITLE PAGE NO. 5 MAINTENANCE (Continued) 5 53. Offset Null Adjustments 540 554. Record Level Adjustment (Method 1 I . 543 555. Reproduce Level Adjustment (Method 1) 5.43 556. Record and

28、Reproduce Level Adjustment (Method 2) 543 5 57. fU HC I 1m 1ng Al 1gnment . 5-44 5-58. Tape Transport Adjustments 546 5-59. Capstan Tach Sensor 546 5-60. Tension Arm Limits. 5-50 561. Tape Tension 5-50 5-62. Tape Lifters. 5-52 !i6.l Tape Lifter Solenoid 5 53 564 Tape Lifter Arms. 5.53 565. Head Gate

29、 555 566. Head Gate Height in Latched Position. 556 5-67. Head Gate Shield Alignment with Head Assembly Shield . 5-57 568 Head Gate Catch . 5-57 5-69. Ht:ciU Gate Vertical Alignment. 5 59 5-70. Tape Peeler 559 5-71. PERFORMANCE TESTS. 560 672. Tape Tension 5-R0 5-73. Absolute Tape-Speed Accuracy 560

30、 5-74. Speed Variation 5-61 5-75. Operating Level 562 5-76. Signal-to-Noise Ratio 562 5-77. Harmonic Distortion 564 5-78. SMPTE Intermodulation Distortion. 568 5-79. Flutter. 5-68 5-80. CORRECTIVE MAINTENANCE. 569 5-81. Head Maintenance 5-70 S-82. Changing I lead Assembly. 5-70 5-83. Changing Head S

31、tacks . 5 71 5-84. Troubleshooting 5 72 5-85. Extender Boards . 5 74 5-86. Power Transistor Locations . 5 74 5-87. FI utter . 5.75 5-88. Troubleshooting Hints. 5.75 AMPEX 4890407 01 vii TABLE OF CONTENTS Continued) SECTION NO. TITLE PAGE NO. 5 MAINTENANCE (Continued) 5-89. Component Replacement Proc

32、edures 5-87 5-90. rower Supply 5-87 591. Electronics Assembly 587 5-92. Capstan/Tach Assembly 587 5-9.l. l.rtrc.t;rn Mntor and Parts Replacement. 5-09 5 94. Capstan Motor. 590 5-95. Capstan Motor Brushes 590 5-96. Flywheel and Rotor. 5-91 5-97. Capstan Shaft Assembly 592 598. Capstan Shaft Bearings.

33、 5-94 5-99. Reel Drive Motors and Brush Replacement . 5-94 5100. Reel Drive Motor Replacement 5-94 5-101. Brush Replacement . 594 6 PARTS LISTS AND SCHEMATICS. 6-i INDENTURED LISTS OF ASSEMBLIES 6ii NUMERICAL LIST OF ASSEMBLIES 6-v NUMERICAL LIST OF SCHEMATICS 6-vii viii AMPEX 489040? 01 FIGURE NO.

34、1-1 1-2 1 3 1A 1 -5 1 -6 1-7 1 -8 1 9 1 10 2 1 2-2 23 2A 25 2-6 2-7 28 2-9 2-10 2 11 2 12 2-13 2-14 2 15 2-16 2 17 218 2-19 2 20 2-21 2 22 2-23 2 24 AMf-t;X 489040/ 01 LIST OF ILLUSTRATIONS TITLE Recorder/Reproducer, Unmounted . _ . , . . Top View of Tape Transport with Front and Rear Overlay Panels

35、 and the Head Cover Removed Head Assembly Head Assembly with Head Shield Removed. Control Unit . . . . . . . . . . . . Electronics Assembly, Cover Panel Removed Power Supply . . . . . . . _ . . . . Power Supply Chassis with Cover Panel Removed ATR-100 Series Mounting Configurations Input/Output /ssc

36、mbly Mounting Dimensions . Rear Overlay Panel, Six Mounting Screws Cabinet and Fixed-Rack Mount Transport-Mounting Holes. Cabinet Mounted on a Pedestal Pedestal Assembly, Exploded View . . . . Fixed-Rack Mount with Electronics Assembly Cover Panel Removed Slide Rack Mount Kit . . . . . . _ _ . Slide

37、Rack Mount Tran5portMounting Holes Left Hand Slide, Top View . Input/Output Assembly Mounting . . _ . Recorder/Reproducer, Rear View . . . , Main Power Jumper Location . . . , . . Connector Locations, Bottom View of Recorder/Reproducer. Input/Output Assembly, Rear View . Input/Output Assembly Connec

38、tor Wiring Supply Motor Mounting Supply Turntable. , . . . . . . . . Rear View of Transport . . . . . . . Tape Transport . . . . . . , . . . Rear View of Filler Panel (Transport Components Removed for Clarity) . . . . . . . . . _ . Spool Speed Jumper, Capstan Servo PWA No. 8 . Normal/Play Edit-Locko

39、ut Jumper, Transport Control PWA No. 7 _ . . . _ . . . Record Lockout Jumper J5, Audio Control PWA No. 5 Tape Timer Display Selection Jumpers, Transport Control PWA No. 7 . . . . . . . . . _ PAGE NO, 1-2 1-3 1-4 1-5 1-6 1-7 1-8 1-9 1 10 1-11 22 2-3 2-4 2-5 27 28 2-9 2-10 210 2 12 2-13 2-14 2-16 2-17

40、 2 18 2-20 2-21 2-22 222 2-23 2-24 2-25 2-26 2-27 ix FIGURE NO. 2 25 2-26 2 27 2 28 3 1 32 4 1 42 43 44 4.5 46 47 48 4.9 4 10 4 11 4 12 413 4-14 4 15 410 4-17 418 4.79 4-20 4-21 422 4-23 X LIST OF ILLUSTRATIONS Continued TITLE Control Unit, Case Bottom Removed I nc;:irlP /iew of Control Un1t. Tape T

41、imer Display Selection Jumper, Control Un.,t PWA No. 1 . PURC Jumper, PADNET PWA. Tape Threading Path PURC On/Off Timing Relationships ATR-100 System, Simplified Block Diagram Capstan Servo General Simplified Block Diagram Capstan Servo Simplified Block Diagram. Reel Servo General Simplified Block D

42、iagram . Reel Servo Simplified Block Diagram . Pulse Width Modulator Waveforms, Takeup Reel Servo Dead Zone Generator Operation and MDA Switch Transistor Conduct1on State . Takeup Dynamic Brake, Simplified Schematic. Transport Control PWA No. 7, Simplified Block Diagram Signal Mode Selection, Interc

43、onnection Simplified Block Diagran1 . Cl1dlli1el 1 Signal-Mode Selection SImpl1t1ed Block Diagram, Audio Control PWA No. 5 . Multiplexer Simplified Interconnect Block Diagram, Audio Control PWA No. 5 .:ind Control Unit Multiplexer Simplified Block Diagram, Audio Control PWA No. 5 . . . . . Master Os

44、cillator and Counters, Simplified Block Diagram (PWA No. 5) Master Erase Bus, Simplified Schematic Diagram, Audio Control PWA No. 5 . Master Bias Bus, Two-Speed Simplified Schematic (PWA No. 5) Main Audio Simplified Block Diagram. Main /udio Control Logic, Sin1plified BluGk Diagram. Record Ramping a

45、nd PU RC Delay Timing . . . Audio Record c,rcuits, s,mplified Block Diagram . Erase Circuit Simplifierl Rlnrk niaaram . Audio Reproduce Circuits, Simpldied Block Diagram . Audio Output Circuit, Simplified Block Diagram . PAGE NO. 2 27 228 2 28 2-29 312 3 16 4-3 4-5 4 7 411 4-13 4-14 415 4.17 4-19 42

46、5 4-27 4-31 4-32 4-33 434 437 438 4-41 4-42 445 4-47 449 4-51 AMPEX 4890407 01 LIST OF ILLUSTRATIONS Continued FIGURE NO. TITLE PAGE NO. 4-24 Input/Output Assembly, Simplified Block UIagram. 453 4-25 Tape Timer, Simplified Block Diagram 455 4-26 Count Up Logic, Simplified Block Diagram . 4-58 4-27 C

47、ount Down Logic, Simplified Block Diegrnm 4-60 428 Power Supply Assembly, Simplified Block Diagram. 4-63 5 1 Top View of Head Assembly_ Head Shield Removerl 55 52 Scrape Flutter Idler, Side Cross-Section View 56 5-3 Tape Guide Securing Screws 58 54 Overlay Panels, Audio Control PWA No. 5 5-9 5.5 Spe

48、ed Selection Jumpers, PAD NET PWA 5-10 56 Speed/Bias Selection Jumpers, Audio Control PWA No. 5 5-11 5-7 Input/Output Assembly Module - Jumper Terminals and Caacitur C20 !:, 1 ;/ 5-8 Relative Fringing Frequency Response Due to Fringing Effect. 5 15 5-9 Friualized Flux Loop Response for 15 in/sand 30 in/s 5Hl 5-10 Reproduce Response From Unequalized Flux Loop 5-19 5 11 Azimuth Adjustment Screw Location . 5-20 5 12 Main Audio PWA 1, 2, 3, or 4 -Alignment Controls 523 b-13 Record Equalization Standard Selector Switch S 1, PANDET PWA . 5-30 5-14 Audio Control PWA No. 5 5-31 5-1