Texas Instruments 51X Laptop User Manual


 
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1.4.6
Notebook Expansion Capabilities
Expansion capabilities built into the Extensa notebook series include:
User installable expansion RAM memory (to a maximum of 40 MB);
notebook accepts either fastpage mode or EDO RAM modules.
A Cable-Connect PS/2 Numeric Keypad option, TI Part No.
2581381-0001, can be attached to the external PS/2 Port.
A parallel device can be attached to the notebook’s external 25-pin
parallel port (EPP/ECP compatible).
Serial RS-232 Port for attaching any serial device
External VGA Port for driving an external color monitor
Third Party External PS/2 keyboard (or external mouse)
Three audio jacks (line-in/out and microphone in)
1.5
Standard Test Features
The Extensa Series Notebook Computers use modular design and built-in
test features to reduce the mean time to repair. A power on self test
automatically verifies the operational state of the primary circuits and a
powerful suite of diagnostic tests are available to further test selected parts
of the system.
1.6
Notebook Assemblies and
Subassemblies
The Extensa Series Notebooks are modular in design and can be
disassembled for maintenance purposes using a standard set of flat-bladed,
Phillips-head and hexagonal screwdrivers. The major assemblies that
comprise a typical notebook in the Extensa family are shown in Figure 1-7
and briefly described in the following paragraphs.
1-10
General Description