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Sinclair QL Service Manual

Sinclair QL
45 pages
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J11 TE9FS/18B 9-way flex
J12 TE11FS/18B 11-way flex
HBC1/2 4 off Aries, 7-way flex. socket
LS MWP2P-1B Burndy
LEDS (D20, D21, D27) MWP6P-1B Burndy
MISCELLANEOUS COMPONENTS
TC1 540pF
As Issue 5
Trimmer
M1 UM1233 Astex, E36 Modulator
X1 HC18-U 15MHz, 20ppm
X2 MX38 32.768kHz, 20ppm
X3 HC18T-U 4.4336MHz, 20ppm
X4 - 11MHz, 10ppm
S3 RESET P/B Switch Schadow, DPCO
FIGURE 5.1 PRINTED CIRCUIT BOARD (Issue 5) COMPONENT LAYOUT
FIGURE 5.2 PRINTED CIRCUIT BOARD (Issue 6) COMPONENT LAYOUT

Table of Contents

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Preview: User Guide
User Guide422 pages
Preview: Beginner's Guide
Beginner's Guide135 pages

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Sinclair QL Specifications

General IconGeneral
ProcessorMotorola 68008
Clock Speed7.5 MHz
RAM128 KB (expandable to 640 KB)
ROM48 KB
Operating SystemSinclair QDOS
Release Year1984
StorageMicrodrive tape loop
Graphics256x256 pixels, 8 colors
PortsRS-232, ROM cartridge
SoundBeeper (internal speaker)

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