Table of Contents
Sinclair QL Service Manual
List of Contents
List of Illustrations
History Sheet
SECTION 1
SYSTEM DESCRIPTION
LIST OF CONTENTS
1. INTRODUCTION
2. ARCHITECTURE
3. MC68008 CPU
4. INTEL 8049 INTELLIGENT PERIPHERAL CONTROLLER (IPC)
5. MEMORY ORGANISATION
5.1 Introduction
5.2 Read/Write Operations
6. PERIPHERAL CONTROL (ZX8301, ZX8302, IC38 and IC28)
6.1 ZX8301, IC22.
6.2 ZX8302, IC23.
7. MICRODRIVE
7.1 Introduction
7.2 Microdrive Selection
7.3 Read/Write Operations
8. POWER SUPPLIES
9. TEST
SECTION 2
DISASSEMBLY/ASSEMBLY
1. DISASSEMBLY
1.1 Access to Internal Components
1.2 Microdrive
1.3 Circuit Board
1.4 Loudspeaker
1.5 Microdrive: Disassembly for Repair
1.6 Keyboard: Disassembly for Repair
2. ASSEMBLY
SECTION 3
SYSTEM TEST
1. INTRODUCTION
2. SYSTEM TEST
3. PROCEDURE
3.1 Power Up
3.2 Colour Test
3.3 Sound Test
3.4 Network Test
3.5 RS232C Loopback Test
3.6 Keyboard Test
3.7 Joystick Test
3.8 Real-Time Clock Test
3.9 Microdrive 2 Test
3.10 Microdrive 1 Test
3.11 Microdrive Test Not Inserted Correctly
3.12 End of Test
SECTION 4
FAULT DIAGNOSIS AND REPAIR
1. INTRODUCTION
1.1 Test Equipment
1.2 Modification History
1.3 Mandatory Modifications
2. FAULT DIAGNOSIS
2.1 Techniques
2.2 Power Up
2.3 Keyboard
2.4 Microdrive
2.5 Video
2.6 Fault-Finding Guide
3. REPAIR
4. FIRMWARE UPGRADE
APPENDIX A TO SECTION 4 KNOWN BUGS AND THEIR REMEDIES
1. MONITOR CONNECTIONS
2. KNOWN BUGS
3. PRINTING PROBLEMS
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