Sinclair QL manuály

Sinclair QL Servisní příručka (45 strany)

Značka: Sinclair | Kategorie: Barebones pro PC / pracovní stanice | Velikost: 1.87 MB |

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Sinclair QL Service Manual

2

SECTION 1

3

SYSTEM DESCRIPTION

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DS R/W D0-D7

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Function Code Output

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Cycle Type

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FC2 FC1 FC0

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5. MEMORY ORGANISATION

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7. MICRODRIVE

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8. POWER SUPPLIES

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FIGURE 1.3 QL BLOCK DIAGRAM

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SECTION 2

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DISASSEMBLY/ASSEMBLY

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2. ASSEMBLY

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SECTION 3

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SYSTEM TEST

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3.5 RS232C Loopback Test

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3.2 Colour Test

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3.3 Sound Test

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3.4 Network Test

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3.6 Keyboard Test

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3.7 Joystick Test

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3.8 Real-Time Clock Test

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3.9 Microdrive 2 Test

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3.10 Microdrive 1 Test

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3.12 End of Test

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SECTION 4

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FAULT DIAGNOSIS AND REPAIR

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2. FAULT DIAGNOSIS

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F1...MONITOR

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F2...TELEVISION

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© 1983 Sinclair Research Ltd

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SYMPTOM REMEDY

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2.5 Video

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2.6 Fault-Finding Guide

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3. REPAIR

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4. FIRMWARE UPGRADE

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FIGURE 4.2 KEYBOARD FORMAT

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FIGURE 4.3 HEAD CHASSIS

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APPENDIX A TO SECTION 4

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KNOWN BUGS AND THEIR REMEDIES

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1. MONITOR CONNECTIONS

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2. KNOWN BUGS

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3. PRINTING PROBLEMS

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4. SER OUTPUTS

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5. HOW TO CURE A CRASHING QL

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6. FLICKERING DISPLAYS

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APPENDIX B TO SECTION 4

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USER HINTS

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APPENDIX C TO SECTION 4

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MANDATORY MODIFICATIONS

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APPENDIX D TO SECTION 4

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MICRODRIVE FAULT FINDING

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3.4 Erase Check

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340 PAUSE 50

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350 SAVE ser1

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360 END DEFine

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SECTION 5

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PARTS LISTS

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4. NOTES TO TABLES

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Description Manufacturer/Type

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Circuit Ref

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MDV1 MDV2

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Table of Contents

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