Radio Shack TRS-80 Model 4 Manuals

Manuals and User Guides for Radio Shack TRS-80 Model 4. We have 4 Radio Shack TRS-80 Model 4 manuals available for free PDF download: Owner's Manual, Technical Reference Manual, Introduction Manual

Radio Shack TRS-80 Model 4 Owner's Manual (418 pages)

Brand: Radio Shack | Category: Desktop | Size: 11.41 MB

Table of Contents
7
About this Manual
135
Disk Files
135
Syntax
136
Part III Basic

136
- Terms
  136
- Terms Used in Chapter 7 For Brevity
  136
Section 11I1 Operations

138
- Chapter 11 Sample Session
  
  139
- Chapter 21 Command and Execution Section
  
  146
- Chapter 31 Line Edit Mode
  
  146
Section IVI BASIC Language

152
- Chapter 41 BASIC Concepts
  
  153
- Chapter 51 Disk Files
  
  179
- Chapter 61 Introduction to BASIC Statements and Functions
  
  186
- Chapter 71 BASIC Statements and Functions
  
  186
- Appendix Ai Job Control Language
  
  308
  - Simple JCL Execution
    308
  - Simple JCL Compiling
    308
  - Advanced JCL Compiling
    330
  - Applications Programs
    335
  - Practical Examples of TRSDOS JCL Files
    338
- Appendix Bi Model 4/4P Hardware
  
  340
  - Keyboard Code Map
    340
  - Specifications
    343
Appendix CI Character Codes

348
Appendix DI Error Messages and Problems

363
- In Case of Difficulty
  363
- Trsdos
  365
- Basic
  371
Appendix Ei Converting TRSDOS Version 1 BASIC Programs to

379
Appendix Fi BASIC Keywords and Derived Functions

379
- Reserved BASIC Words
  379
- Internal Codes for BASIC Keywords
  380
- Derived BASIC Functions
  382
Appendix Gi BASIC Worksheet

384
Appendix Hi Glossary

384
Appendix II TRSDOS Programs

389
Appendix Ji BASIC Memory Map

399
Appendix K! Using the Device-Related Commands

401
Appendix U HERZ50

406
Appendix MI Backup Limited Diskettes

406

Radio Shack TRS-80 Model 4 Technical Reference Manual (408 pages)

Brand: Radio Shack | Category: Desktop | Size: 31.29 MB

Radio Shack TRS-80 Model 4 Technical Reference Manual (107 pages)

Microcomputer

Brand: Radio Shack | Category: Desktop | Size: 2.1 MB

Limited Warranty
3
Reference Manual
5
Important Notice
7
Table of Contents
9
List of Figures
11
Part 1 / Hardware
13
Introduction

13
- System Overview
  15
- Block Diagram
  15
- Jumper Options
  17
Disassembly / Assembly

19
- Disassembly
  21
- Case
  21
- CPU Board
  21
- FDC Board (Optional)
  21
- Board (Optional)
  21
- Main Power Supplies
  21
- Disk Drives (Optional)
  21
- Video Monitor (CRT) and Video Board
  22
- Assembly
  23
- Board (Optional)
  23
- FDC Board (Optional)
  23
- CPU Board
  23
- Power Supply
  23
- Disk Drive (Optional)
  23
- Disk Drive Power Supply (Optional)
  23
- Video Monitor (CRT) and Video Board
  23
- Case
  23
CPU Circuit Board

25
- Model 4 Theory of Operation
  27
- Introduction
  27
- CPU and Timing
  27
- Buffering
  27
- Address Decoding
  27
- Rom
  31
- Ram
  31
- Keyboard
  31
- Video
  31
- Real Time Clock
  33
- Cassette Circuitry
  33
- Printer Circuitry
  33
- I/O Connectors
  33
- Sound Option
  33
- Model 4 I/O Bus
  38
- Model 4 Port Bits
  40
Floppy Disk Interface

65
Mini-Disk Drive (Not Available)

85
Power Supplies (Not Available)

87
Video Monitor (Not Available)

89
SECTION VIII Exploded View / Parts List

91
- Exploded View, Model 4 Computer, Catalog #26-1067/8/9
  93
- Parts List, Model 4 Computer, #26-1067/8/9
  95
RS232C Circuit Board

97
- RS-232C Technical Description
  99
- Pinout Listing
  100
- Port and Bit Assignments
  101

Radio Shack TRS-80 Model 4 Introduction Manual (42 pages)

Disk System

Brand: Radio Shack | Category: Desktop | Size: 1.18 MB

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Radio Shack TRS-80 Model 4 Manuals

Radio Shack TRS-80 Model 4 Owner's Manual (418 pages)

Table of Contents

Part III Basic

Section 11I1 Operations

Chapter 11 Sample Session

Chapter 21 Command and Execution Section

Chapter 31 Line Edit Mode

Section IVI BASIC Language

Chapter 41 BASIC Concepts

Chapter 51 Disk Files

Chapter 61 Introduction to BASIC Statements and Functions

Chapter 71 BASIC Statements and Functions

Appendix Ai Job Control Language

Appendix Bi Model 4/4P Hardware

Appendix CI Character Codes

Appendix DI Error Messages and Problems

Appendix Ei Converting TRSDOS Version 1 BASIC Programs to

Appendix Fi BASIC Keywords and Derived Functions

Appendix Gi BASIC Worksheet

Appendix Hi Glossary

Appendix II TRSDOS Programs

Appendix Ji BASIC Memory Map

Appendix K! Using the Device-Related Commands

Appendix U HERZ50

Appendix MI Backup Limited Diskettes

Radio Shack TRS-80 Model 4 Technical Reference Manual (408 pages)

Radio Shack TRS-80 Model 4 Technical Reference Manual (107 pages)

Table of Contents

Introduction

Disassembly / Assembly

CPU Circuit Board

Floppy Disk Interface

Mini-Disk Drive (Not Available)

Power Supplies (Not Available)

Video Monitor (Not Available)

SECTION VIII Exploded View / Parts List

RS232C Circuit Board

Radio Shack TRS-80 Model 4 Introduction Manual (42 pages)

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