Introduction - Tandy 1000 SL Technical Reference Manual

Main Logic Board
Introduction
The main unit is the heart of the Tandy 1000 SL. It houses the
main logic assembly, system power supply, and floppy disk drive.
The main logic assembly is a large board mounted to the bottom of
the main unit and interconnected to the keyboard, power supply,
and disk drive by a series of cables.
The power supply is a 67W switching regulator type, designed to
provide adequate power capacity for a fully configured system
that has all the option slots in use.
The floppy disk drive uses 54-inch double-sided, double-density
diskettes to read, write, or store data. These are soft sector
diskettes. The disk drive assembly comes installed in the main
unit. All system programs, with the exception of the system
startup sequence, are stored on diskette.
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