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Component map showing capacitor locations and values for TI/99 4A logic board.
This is a laminated component map for the Texas Instruments TI/99 4A logic board. The map is not to scale but is made so it's easy to find components on your 4A logic board.
Note: This is for the original logic board, not the QI logic board that is found in some 4A units.
It shows locations and values of capacitors, with respect to some other components on the motherboard.
You can use a dry-erase marker on this map as you work through your mod, then easily remove any marks you may have placed.
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