Tandy 6000 HD Manuals

Manuals and User Guides for Tandy 6000 HD. We have 1 Tandy 6000 HD manual available for free PDF download: Service Manual

Tandy 6000 HD Service Manual

Tandy 6000 HD Service Manual (416 pages)

Brand: Tandy | Category: Desktop | Size: 14.93 MB

Table of Contents

English

5
- Table of Contents
  5
- 1/ Introduction
  9
- Major Assemblies, TANDY 6000/6000-HD
  10
- 2/ Technical Specifications
  15
- 3/ Disassembly/Assembly Procedures
  17
- Electronics Module Assembly
  23
- Adjustments
  27
- 4/ Adjustments
  27
- Cable Interconnection Layout
  31
- 5/ Cabling Diagrams/Pin Designations
  31
- Floppy Disk Drive Version 1
  33
- Hard Disk Drive Version 1
  34
- Line Printer/Parallel Output Cable
  38
- RS-232 Serial Interface Cable
  38
- FDC to Internal Drive Cable
  40
- Video/Keyboard PCB to Keyboard Cable
  41
- DC Power Cable
  42
- AC Input Cable
  43
  - Video Cable
    45
- 6/ Troubleshooting Procedures
  51
- Interrupt Inputs
  57
- 7/ Theory of Operation
  59
  - 7.1 Mother Board
    59
  - Theory of Operation 7.1 Mother Board
    59
  - MC68000 CPU Board
    65
  - Read and Write Cycle Timing
    74
  - Write Cycle Timing
    75
  - Read Cycle Timing
    76
  - Refresh Cycle Timing of 68000
    77
  - Bus Arbitration Circuit Timing
    82
  - Onboard BDTACK Generation
    83
- Memory-Mapped I/O Locations
  84
  - I/O Controller Timing
    85
- Memory Map
  86
  - Timing for Refresh Logic
    88
    
    Memory Board
    104
- Memory Map Select Tables
  108
  - 7.4 Main Logic Board
    120
  - I/O Processor PCB Block Diagram
    121
- Input/Output Port Map
  124
- Jumper Options
  129
  - Video/Keyboard Interface Board
    158
  - Video/Keyboard Interface
    159
  - MC6845 Pin Identification
    163
  - Character Dot Pattern
    166
- Port Addressing
  169
  - Keyboard Timing Diagram
    173
    
    Power Supply Board
    184
  - Test Layout, Power Supply
    188
- Power Supply Voltage Chart
  188
- Voltage and Ripple Specifications
  191
  - Sound Board
    199
  - CRT Assembly
    202
  - Keyboard Assembly
    203
  - Hard Disk Controller
    208
- Port Decoding
  208
  - Base Assembly
    230
- Exploded View, Base Assembly
  231
  - Card Cage, Chassis and Power Supply
    232
  - 8.3 Floppy Disk Drive
    234
- Exploded View, Floppy Disk Drive
  235
  - 8.4 Hard Disk Drive Assembly
    236
- Exploded View, Hard Disk Drive Assembly
  237
  - 8.5 Bezel Assembly
    238
- Exploded View, Bezel Assembly
  239
  - 8.6 Reset/Power on Indicator Module
    240
- Exploded View, Reset/Power on
  241
  - Case Top
    242
- Exploded View, Case Top Assembly
  243
  - 8.8 Keyboard Assembly
    244
- Exploded View, Keyboard Assembly
  245
- Appendices
  247
  - Video Monitor Assembly
    247
  - Floppy Disk Assembly (Tandon)
    247
  - Hard Disk Assembly (Tandon)
    247
Unknown

257
- General Description
  263
  - Introduction
    263
- Major Features
  263
  - Microprocessor Control
    263
  - Write Protect
    263
  - Daisy Chain Capability
    264
  - Internal Trim Erase
    264
  - Industry Standard Interface Compatibility
    264
  - Activity Indicator
    264
  - Direct Drive, Brushless D. C. Motor
    264
  - Compact Size
    264
  - Diskette Lever Lock Solenoid (Optional)
    264
- Purpose of the Drive
  263
- Scope of the Document
  263
- 1.4 Functional Description
  264
  - Self-Tests
    265
- Physical Description
  265
  - Product Specifications
    267
    
    Introduction
    267
- Electrical and Operational Specifications
  267
- Environmental Specifications
  267
  - Operation
    273
    
    Introduction
    273
- Mechanical Specifications
  267
- Reliability Specifications
  267
- Mounting the Drive
  273
  - Dust Cover
    274
  - Cooling
    274
- Preinstallation Checkout
  273
- Unpacking the Drive
  273
- Interface Connections
  274
  - Input Control Lines
    274
  - Drive Interface Lines and Pin Assignments
    275
    
    Output Control Lines
    277
    
    Typical Interface Characteristics
    278
- Power
  278
  - P O W E R C O N N E C to R P in a S S Ig N M E N Ts
    278
- Drive Address and Option Strapping
  280
  - D R IV E S E Le C T ( D S L - D S 4 )
    280
  - Option Patching
    281
    
    Stepper Motor Power (Ps, Ps*, Ds, Hl)
    282
    
    Ready and True Ready (R and Tr)
    284
    
    Lever Lock Options (D, Dl, Ll, Nl)
    284
    
    Disk Change (DC)
    284
    
    Two-Sided Diskette Installed (2S)
    284
    
    Write Protect (Wp and Np)
    284
    
    Write Current Switch (XC and IC)
    285
- Diskettes
  285
  - Loading the Diskette
    285
  - Write Protect Tab
    285
  - Diagnostic Mode of Operation
    285
    
    Diskette Handling and Storage
    288
  - Theory of Operation
    291
    
    Introduction
    291
- Data Recording
  291
- Components of the Drive
  293
- Generate and Interpret Control and Status Signals
  293
  - Index Sensor(S)
    293
  - Write Protect Sensor
    293
  - Track 0 Sensor
    293
  - L E V E R C Lose S W Itc H
    293
  - Drive Select
    293
  - Lever Lock Solenoid
    296
- Read/Write Head Positioner
  296
  - Step and Direction
    296
  - Stepper Motor Control
    296
  - Stepper Motor
    296
- Read/Write Data
  297
  - Read/Write Head Assembly
    297
  - Side Select Circuits
    297
  - Write/Erase Circuits
    297
  - Read Data Circuits
    299
- Spindle Control
  300
  - Spindle Motor Enable Circuit
    300
  - Spindle Motor Control Circuit
    300
  - Maintenance Checks and Adjustments
    301
    
    Introduction
    301
- Equipment Required
  301
- Is U a L I N S P E C T Io N
  301
- Power/Drive Select Check
  302
- Drive Motor Speed Check
  303
- Radial Track Alignment Check and Adjustment
  303
  - Radial Track Alignment Check
    303
  - Radial Track Alignment Adjustment
    306
- Write Protect Sensor Check
  303
- In D E X C Hecks a N D a D Ju S T M E N T S
  307
  - Index-To-Data Burst Check
    307
  - Index Sensor Adjustment
    308
- Azimuth Check
  308
  - Track 0 Sensor Check and Adjustment
    309
    
    Track 0 Sensor Check
    309
    
    Track 0 Sensor Adjustment
    310
- 5.10 Head Output Check
  310
- 5.11 Cone Centering Check
  312
  - Troubleshooting Guide and Replacement Procedures
    313
  - Introduction
    313
- Soft Errors
  313
- Symptom Diagnostic Techniques
  313
- Troubleshooting Guide
  313
- Replacement Procedures
  317
  - Logic Circuit Board
    319
  - Cone Assembly
    320
  - Diskette Lever
    322
  - Front Panel
    323
  - Bridge Assembly
    324
  - D R IV E M O to R
    325
  - Load Arm Assembly
    327
  - Track 0 Sensor Assembly
    328
  - Write Protect Sensor Assembly
    329
  - Motor Switch Assembly
    330
  - Index Sensor Assembly
    331
  - Diskette Ejector Assembly
    333
  - Stepper Band
    334
  - Stepper Motor Assembly
    335
  - Head Carriage Assembly
    336
  - Table Page
    355
  - Number Title Number
    355
  - E Le C Tr IC a L a N D O P E Ra Tio N a L S P E C Ific a Tio N S
    355
  - General Description
    357
  - Introduction
    357
  - Scope of the Document
    357
  - Purpose of the Drive
    357
  - Major Features
    357
    
    Microprocessor Control
    357
    
    Daisy Chain Capability
    357
    
    Industry Standard Interface Compatibility
    357
    
    Activity Indicator
    358
    
    Air Filtration
    358
  - Functional Description
    358
  - Physical Description
    358
  - Product Specifications
    359
  - Introduction
    359
  - Mechanical Specifications
    359
  - Electrical and Operational Specifications
    359
  - Reliability Specifications
    359
  - Environmental Specifications
    359
  - Operation
    367
  - Introduction
    367
  - Unpacking the Drive
    367
  - Mounting the Drive
    367
    
    Dust Cover
    369
    
    Free Air Flow
    369
    
    Confined Environment
    369
  - Interface Connectors
    369
    
    J2/P2 Connector
    369
    
    J3/P3 Connector
    372
    
    Frame Ground Connector
    372
  - Interface Line Descriptions
    372
    
    Input Control Signals
    372
    
    Output Control Signals
    378
    
    Data Transfer Signals
    379
  - Drive Address and Option Selection
    380
  - Shipping Pack and Handling
    380
  - Troubleshooting Guide
    389
  - Test Equipment
    389
  - Test Points
    389
  - R E P la C E M E N T P Ro C E D U Re S
    395
  - Control and Data Circuit Board Assembly
    395
  - F Ro N T P Anel L .E .D . Assem Bly
    395
  - Linear Brake Assembly
    395
  - Tools Required
    395
  - Index Assembly
    396
  - Frame Assembly
    399
  - Track 0 Sensor Assembly
    399

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