TI Travelmate

Chuck Guzis cclist at sydex.com
Wed Mar 1 15:37:15 CST 2006

On 3/1/2006 at 3:07 PM John C. Ellingboe wrote:

>Does anyone have information on the TI Travelmate LT220/V.  A
>quick Google didn't turn up anything of value.
>I have acquired one with a pile of other items and have no idea
>how useful it might be.  The power source, 18V DC did not come
>with it and there is no indication as to whether the center pin
>of the power connector is the positive connection or not.

Any external I/O connectors on it?  Things like parallel port connections
will usually have their ground/return pins conected to the - side of the
power supply.

Last resort is popping the box open and checking the ground plane on the
PCB or any of the ICs (if the ground plane is buried) against the


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