Sinclair QL Service Manual

PARTS LISTS
1. Serial Numbers
2. Parts List/Modification History
3. Retrospective (Mandatory) Modifications
4. Notes to Tables
1. SERIAL NUMBERS
1.1 The serial number is visible on a label attached to the underside of the Sinclair QL thus: D13 59643. Prefix D13 relates to the build standard
(B/S) and Issue Number, 59643, is the number of the production run.

Sinclair QL Specifications

General

Processor	Motorola 68008
Clock Speed	7.5 MHz
RAM	128 KB (expandable to 640 KB)
ROM	48 KB
Operating System	Sinclair QDOS
Release Year	1984
Storage	Microdrive tape loop
Graphics	256x256 pixels, 8 colors
Ports	RS-232, ROM cartridge
Sound	Beeper (internal speaker)