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Texas Instruments TravelMate 4000E

From Higher Intellect Vintage Wiki

PC laptop from Texas Instruments. Uses a "486 WinDX2" processor. The 4000E appears to have been available in color or monochrome versions.


Power Supply

Here are the voltages on the wires when laptop is on|off

1 - green wire=0.10v|0.0v

2 - white wire=5.70v|6.75v

3 - both blue and red wires=5.27/5.40v|5.27v/5.27v

shield - both yellow and black wires and both are connected to ground on the PSU