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Table Of Contents

  1. — General Information
    1. Introduction
    2. General Description
      1. Exclusive Features
      2. Standard Features
      3. Electronics
      4. Logic (Functional Description)
      5. Transport
      6. Specifications
      7. Warranty
  2. — Installation
    1. Unpacking and Inspection
    2. Jumper Selection
      1. Transport Speed
      2. Restart Disable Jumper
      3. FAST FORWARD Initiate Jumper
      4. Audio Switcher Control Jumper
      5. Tape Timer Control Jumper
    3. VU Meter Operation
    4. CARTSCAN Inversion Switches
    5. Mounting
    6. Wiring
      1. Connecting AC Power
      2. Power Conversion
      3. Balanced Audio Input Connections
      4. Unbalanced Audio Input Connection
      5. Balanced Audio Output Connections
      6. Unbalanced Audio Output Connections
      7. Grounding
      8. Remote Control Wiring
  3. — Operation
    1. Pre-operating Procedures
    2. Front and Rear Panels — Controls and Indicators
    3. Operation
      1. CARTSCAN System
      2. Recording
      3. Playback
      4. FAST FORWARD
      5. SPLICE FIND (Recorders Only)
      6. Cue Tone Recording (Recorders Only)
      7. VARY SPEED
      8. Playback with Audio Switcher Interlock
  4. — Mechanical Adjustments
    1. Pressure Roller/Motor Shaft Alignment
    2. Solenoid Plunger Adjustment
    3. Solenoid Damping Adjustment
    4. Cartridge Guidance System Alignment
    5. Head Bridge Adjustments
      1. Height and Zenith Adjustment
      2. Tape Guide Adjustment
    6. Head Azimuth Adjustment
      1. Monophonic Play Head Azimuth
      2. Monophonic Record Head Azimuth
      3. Stereo Play Head Azimuth
      4. Stereo Record Head Azimuth
      5. Tape Head Replacement
  5. — Electronic Adjustments
    1. CARTSCAN Sensitivity
    2. Program Playback Adjustments
      1. Playback Equalization
      2. Left Channel Normal Output Level
      3. Left Channel Elevated Output Level
      4. Right Channel Level Balance
      5. Right Channel Normal Output Level
      6. Right Channel Elevated Output Level
    3. Cue Detector Sensitivity
      1. 1 kHz Sensitivity
      2. 150 Hz Sensitivity
      3. 8 kHz Sensitivity
    4. Playback Meter Adjustments
    5. Program Record Normal Bias
      1. Left Channel Bias Adjustment with External Oscillator
      2. Left Channel Bias Adjustment with Internal Oscillator
      3. Right Channel Bias Adjustment with External Oscillator
      4. Right Channel Bias Adjustment with Internal Oscillator
    6. Program Record Elevated Level Bias
      1. Left Channel Elev Bias Adjustment with External Oscillator
      2. Left Channel Elev Bias Adjustment with Internal Oscillator
      3. Right Channel Elev Bias Adjustment with External Oscillator
      4. Right Channel Elev Bias Adjustment with Internal Oscillator
    7. Program Record Normal Level and Equalization
      1. Left Channel Level with External Oscillator
      2. Program Record Normal Equalization, Left Channel, with External Oscillator
      3. Left Channel Equalization Adjustment with Internal Oscillator
      4. Right Channel Adjustments with External Oscillator
      5. Right Channel Equalization Adjustments with Internal Oscillator
    8. Program Record Elevated Level and Equalization
      1. Left Channel with External Oscillator
      2. Program Record Elevated Equalization
      3. Left Channel Equalization Adjustment with Internal Oscillator
      4. Right Channel Adjustments with External Oscillator
      5. Right Channel Equalization Adjustments with Internal Oscillator
    9. Right Channel Record Level Balance
    10. Internal Oscillator Level
    11. Record Elevated Level Gain Adjustment with Internal Oscillator
      1. Left Channel
      2. Right Channel
    12. Record Phase or Group Delay Compensation
    13. Program Record Meter Calibration
      1. Bias Meter Calibration
      2. Record Level Meter Calibration
    14. Cue Bias Adjustment
    15. Cue Record Level
    16. Cue Metering
    17. Test Oscillator Distortion Adjustment
  6. — Circuit Description
    1. LOGIC PWA
      1. Brief Description
      2. Detailed Description
    2. TONE SENSOR PWA
      1. Brief Description
      2. Detailed Description
    3. PLAY AMPLIFIER PWA
      1. Brief Description
      2. Detailed Description
    4. TONE GENERATOR PWA
      1. Brief Description
      2. Detailed Description
    5. RECORD AMPLIFIER PWA
      1. Brief Description
      2. Detailed Description
    6. SERVO PWA
      1. Brief Description
      2. Detailed Description
    7. FRONT PANEL LAMP PWA
      1. Brief Description
      2. Detailed Description
    8. CARTSCAN PWA
      1. Brief Description
      2. Detailed Description
    9. MOTHER PWA
      1. Brief Description
      2. Detailed Description
  7. — Maintenance
    1. Normal Preventive Maintenance — Checks and Adjustments
      1. As Required
      2. Monthly
      3. Every Six Months
    2. Normal Preventive Maintenance — Tools and Equipment Needed
      1. Too1s
      2. Test Equipment for Routine Alignment
    3. Test Tapes and Alignment Gauges
    4. Relamping
  8. — Mechanical Assemblies and Parts Lists

    827-A0-001 Motor Assembly
    827-B0-000 Head Bridge
    827-B0-004 Top Assembly R/P Stereo
    827-B0-008 Partition Assembly A
    827-B0-009 Partition Assembly B
    827-B0-010 Heatsink A
    827-B0-011 Heatsink B
    827-B0-014 Deck Asm A
    827-C0-003 Deck Asm B
    827-B0-015 Front Panel Assembly A
    827-B0-016 Front Panel Assembly B Mono
    827-B0-006 Front Panel Assembly B Stereo
    827-C0-013 Rear Panel Asm A
    827-C0-007 Rear Panel Asm B
    827-D0-004 Right Bracket Assembly

  9. — Electrical Schematics and Parts Lists

    807-D0-000 Logic Board
    807-E0-005 (Rev. E) Tone Sensor PWA
    807-F0-005 (Rev. F) Tone Sensor PWA
    807-E0-010 Play Amp Board Mono
    807-E0-011 Play Amp Board Stereo
    807-D0-015 Tone Generator Mono
    807-D0-016 Tone Generator Stereo
    807-B0-020 Record Amp Mono
    807-B0-021 Record Amp Stereo
    807-G0-025 Mother Board (3 card) — A
    807-G0-030 Mother Board (5 card) — B
    807-A0-045 Lamp PWA — A
    807-B0-050 Lamp PWA Mono — B
    807-B0-051 Lamp PWA Stereo — B
    807-A0-055 Display PWA
    807-E0-060 Cartscan PWA
    807-B0-065 Servo PCB
    837-A0-005 Record Cable Mono
    837-A0-006 Record Cable Stereo
    837-A0-008 Meter Cable B
    837-A0-009 Cartscan Cable
    837-A0-010 Servo Cable

  10. — Addenda

    Pressure Roller/Motor Shaft Alignment (Revised)

    3/27/85 Applies To: All Tone Sensor PWAs (Part number 807-F0-005 later than Artwork Rev B)
    Integrated Circuit U3, formerly 74LS04, has been replaced with a 74LS424. When operated in conjunction with Crystal X1 and C16, U3 generates a 18.432 MHZ clock signal.
    Note: The 74LS04 and 74LS424 are not interchangeable.
    807-F0-005 (Rev. F) Tone Sensor PWA