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TRS-80
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Radio Shack TRS-80 Service Manual
Pc-4 pocket computer and cassette interface
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Also See for TRS-80
:
Reference manual
(274 pages)
,
User manual
(236 pages)
,
Service manual
(199 pages)
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Table Of Contents
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
Specifications
Block Diagram
CPU (Central Processing Unit)
Features
CPU Block Diagram
CPU Signal Descriptions
RAM (Random Access Memory)
Ram2
Servicing
Troubleshooting
B Key Entry
Cram1
Discrimination between CPU and RAM1
Test Program
Program Command List
Error Message List
Cassette Interface
Specifications
Block Diagram
Lsi (Hd43110)
Circumference Circuits
Clock Pulse Generator
Remote Control Circuit
Shaping Circuit and Filter
Servicing
Disassembly
Troubleshooting
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Quick Links
1
Specifications
2
Cassette Interface
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See also:
Service Manual
,
Reference Manual
®
•
®
TRS-80
26-3650
26-3651
26-3653
Catalog Number:
PC-4
Pocket Computer and Cassette Interface
CUSTOM MANUFACTURED FOR RADIO SHACK, ADIVISION OF TANDY CORPORATION
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Table of Contents
Troubleshooting
Troubleshooting
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Troubleshooting
22
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This manual is also suitable for:
Trs-80 pc-4
26-3650
26-3651
26-3653
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