Scully 280B Series Magnetic Tape Recorder Manuals

Scully 280B Series Magnetic Tape Recorder Manuals

Manuals and User Guides for Scully 280B Series Magnetic Tape Recorder. We have 1 Scully 280B Series Magnetic Tape Recorder manual available for free PDF download: Instruction And Maintenance Manual

Scully 280B Series Instruction And Maintenance Manual

Scully 280B Series Instruction And Maintenance Manual (241 pages)

Recorder-Reproducer

Brand: Scully | Category: Turntable | Size: 97 MB

Table of Contents

Table of Contents

4
- General Information
  9
- General
  9
- Professional Recorder/Reproducer Series 280B
  9
- Models of 280B Series Recorder/Reproducer
  10
- Tape Transport
  12
- Electronic Assembly
  12
- Head Assembly
  12
- Optional and Accessory Equipment
  12
- Remote Control Unit Accessory
  13
- Sect Ion 2. Installation
  14
- General
  14
- Unpacking
  14
- Console Mounting
  14
- Rack Mounting
  14
- Power Supply Jumper
  18
- Playback Mode
  19
- Record Mode
  19
- Tape Threading
  19
- Selecti Gspeed and Applying Power
  19
- General
  19
- Operation
  19
- Controls and Indicators
  20
- Sync Mode
  21
- Edit Mode
  21
- Tape Threading Path
  21
- Lubri Ation
  22
- Demagnetizing
  22
- Cleaning
  22
- General
  22
- Preve Ntive Iviaintenance
  22
- Functional Checks and Adjustments
  24
- General
  24
- Functional Check
  24
- Tape Transport Assembly
  25
- Transport Logic
  25
- Constant Tension
  25
- THEORY of OPERATION (Continued)
  25
- Squelch Circuit
  25
- Sync Mode
  25
- Play Mode
  25
- System Block Diagram
  26
- Transport, Bottom View
  27
- Transport Logic Operation
  28
- Maintenance
  29
- Mechanical Adjustment
  29
- Tape Head Assembly Adjustments
  29
- Brake Adjustments
  30
- Tension Posts
  31
- Suggested Method of Adjusting Brake Torque
  31
- Head Adjustment
  32
- Pinch Roller Adjustment
  34
- Tension Post Adjustments
  34
- Constant Tension Adjustment
  36
- Constant Tension Adjustment Procedures
  36
- ATL Adjustments
  37
- Checkout and Alignment Procedures
  37
- Constant Tension Assembly
  37
- ATL Adjustment
  37
- Test Equipment Required
  38
- Preliminary Procedures
  38
- Playback Alignment
  38
- Initial Test Setup
  38
- Electronics Assembly, Top View
  39
- Motherboard PWA
  39
- Record Alignment
  40
- Record Bias Set
  40
- Equalization PWA Adjustments
  40
- Regulator, Bias Oscillator and Amplifier PWA
  40
- Regulator, Bias Oscillator and Amplifier PWA
  42
- Bias Amplifier PWA Adjustment and Test Points
  43
- Record Calibrate Alignment
  44
- Record Equalization
  44
- Erase Alignment
  44
- Depth of Erase
  44
- Signal-To-Noise Ratio
  44
- Distortion
  44
- Flutter
  45
- Schematic Diagrams and Parts List
  46
- General
  46
- Transport Logic, Schematic Diagram
  47
- Record/Playback Amplifier PWA
  50
- Motherboard PWA Schematic Diagram
  52
- Schematic Diagrams and Parts List
  52
- Interconnecting Cable Assembly
  72
- Tape Break Switch Assembly
  73
- Dancer Assembly
  78
- Tape Break Arm Assembly
  79
- Pinch Roller Connecting Rod Assem Bly
  83
- ATL Solenoid Assembly
  84
- Torque Motor and Brake Assembly, Take-Up
  91
- ATL Linkage Assembly
  93
- Turntable Reel Assembly Parts Location
  94
- Transport Control Logic Harness Assembly
  101
- Transport Control Power Harness Assembly
  103
- Capstan Motor Assembly
  104
- Scrape Filter Assembly
  105
- Head Cable Assembly
  110
- Erase Head Assembly
  112
- Power Supply PWA
  117
- Torque Motor Assembly
  118
- Torque Motor Brake Plate Assembly
  119
- Motion Direction Sensor PWA
  120
- Brake Plate Assembly
  122
- Bias Amplifier, Schematic Diagram
  129
- Squelch PWA
  139
- Record/Playback Control Panel Assembly
  140
- Record/Playback Equalization PWA
  143
- Record/Playback PWB Subassembly
  145
- Control Panel Harness
  147
- Squelch PWA
  148
- LAA 500 Line Amp PW a
  163
- Light Sensor Assembly
  165
- Manufacturers Code Numbers and Addresses
  168
- Tension Sensor PWA
  172
- Primary Power Supply
  175
Table of Contents

177
- Interconnection Diagram
  178
- Mounting Dimensions
  178
- Head Bridge Assembly
  179
- ILLUSTRATIONS (Continued)
  179
- Relay Control Chassis Interconnect
  179
- Tables
  179
- Transport Control Chassis Assembly
  179
- Electronics Assembly
  183
- Optional and Accessory Equipment
  183
- Specifications
  183
- Cabling Interconnections
  184
- General
  184
- Installation
  184
- Performance Checks
  185
- General
  187
- Operating Controls
  187
- Operation
  187
- Electronics Assembly
  189
- General
  189
- Theory of Operation
  189
- Power Supply
  191
- Capstan Motor Kit
  207

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