The Lil Old Sinclair Computer Technical Information Repository

48k information

48k Service Manuals

this is the official UK service manual

note the above do not include the schematic diagrams or the component layouts

following unofficial guide courtesy of Ian Worsley

48k Schematics

-- these are all in 16 colour GIF format
they are large in size, so its best to right click and save as rather than view online

the above were previously available on my fortunecity site

48k Component Layouts

Diagrams of where the components are on the pcb board.
-- these are all in 16 colour GIF format

the above were previously available on my fortunecity site

The Servicing Articles Mirrored from The Spectrum Hardware Page

of course there is always the messageboard where you can post your problems, solutions etc :)

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