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Table Of Contents - Sinclair QL Service Manual
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Also See for QL
:
User manual
(422 pages)
,
Beginner's manual
(135 pages)
,
Service manual
(45 pages)
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Table Of Contents
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Contents
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Table of Contents
List Of Contents And Illustrations
2
System Description
4
Architecture
5
Mc 68008 Cpu
5
Data Bus.
5
Address Bus.
5
Control Bus.
6
Interrupt Control
6
Dtack (Data Transfer Acknowledge)
6
Ds (Data Strobe)
6
Bus Arbitration Control
7
M6800-Compatible Peripheral Control
7
Processor Status
7
Intelligent Peripheral Controller (Ipc)
8
Reset And Halt
8
Control Lines
9
Keyboard Monitor
10
Memory Organisation
11
Joystick/Loudspeaker Operation
11
Read/Write Operations
11
Read Only Memory
11
Peripheral Control
12
Ram Memory
12
Microdrive
15
Power Supplies
17
Test
17
Keyboard Matrix Interconnections
18
Disassembly
19
Access To Internal Components
19
Circuit Board
20
Loudspeaker
20
Microdrive: Disassembly For Repair
20
Keyboard: Disassembly For Repair
20
Assembly
21
System Test
22
Power Up
23
Colour Test
23
Sound Test
24
Network Test
24
Rs232C Loopback Test
25
Keyboard Test
26
Joystick Test
26
Real-Time Clock Test
27
Microdrive 2 Test
27
Microdrive Test Not Inserted Correctly
28
End Of Test
29
Fault Diagnosis And Repair
30
Test Equipment
30
Modification History
31
Motor Location Jig
31
Fault Diagnosis
32
Mandatory Modifications
32
Keyboard
36
Video
40
Fault-Finding Guide
41
Known Bugs And Their Remedies
42
Monitor Connections
42
Known Bugs Overview
44
Ser Outputs
46
How To Cure A Crashing Ql
46
Flickering Displays
47
Repair
49
Firmware Upgrade
50
Keyboard Format
51
Head Chassis Diagram
52
User Hints
53
Fitment Checks
54
Improvement Of Microdrive Performance
54
Collar For Ql Microdrive 2
54
Issue 5 Board
55
Issue 6 Board View
57
Microdrive Fault Finding
58
Mechanical Checks
58
Using The Signal Test Program
59
Write Check
59
Faults On Early Microdrives
60
Read Check
60
Erase Check
60
Signal Test Program
61
Internal Circuit Diagram
63
Parts List
64
Serial Numbers
64
Retrospective (Mandatory) Modifications
65
Notes To Tables
65
General Assembly
66
Heatsink Assembly
67
Microdrive Chassis
67
Microdrive Board
68
Circuit Diagrams
74
Ql Block Diagram
90
Final Pc Board View
93
Printed Circuit Board Layout
96
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Table of Contents
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