Sinclair QL Service Manual


The QL Service Manual was OCR'ed by Andy Dansby for the Sinclair world. Many thanks to Clive Sinclair for the concept of such a wonderful machine.

The QL Service Manual was HTML'ed by Juanjo Ruiz Leo. Resurrected for the QL World in summer 2013 by Urs König. QL forever!


Prepared by THORN (EMI) DATATECH LTD for SINCLAIR RESEARCH LTD
OCTOBER 1985
© Sinclair Research Ltd.
SERVICE MANUAL X-1204

List of Contents

List of Illustrations

History Sheet

MANUAL ISSUETEXTCIRCUIT/LAYOUT DIAGRAMSREMARKS
1JANUARY 1985
2JUNE 1985
Minor changes made to pages 1.5, 3.6, 4.1, 4.3, 4.4, 4.15, 4.17 and 5.7.
3OCTOBER 1985
Appendices A, B, C and D added to Section 4.

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System Description