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BBC Master Series
Acorn BBC Master Series User Manual
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BB
C Master
128
SERVICE MANUA
L
© 1985 Acorn
2
Table of Contents
Default Chapter
8
Table of Contents
8
1 Introduction
9
2 Packaging and Installation
10
3 Disassembly and Assembly
11
4 Selection Links
13
5 Hardware Description
17
Introduction
17
Core Machine
19
Internal I/O
24
External I/O
29
6 Test Equipment
33
7 Fault Finding
34
Switch on
37
Sideways RAM
42
Video
43
Real Time Clock
45
Analogue Port
46
RS423 Port
46
Disc Drive Interface
49
Parallel Printer Port
51
User Port
51
1Mhz Bus
52
The Tube
52
Internal Co-Processor
52
Sound Output
53
Modem Connector
53
Cartridge Port
54
Econet
54
Appendix
54
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Acorn BBC Master Series Specifications
General
Brand
Acorn
Model
BBC Master Series
Category
Computer Hardware
Language
English
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