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Long story short: two keys stopped working

Recently I decided to take a 1990's NEC APC-H412 out of retirement. The alphabet keys had foreign-language stickies on them. It took Goo Gone to remove the gunk. When I plugged the unit in, I found many of the keys required unusual pressure or repeated once pressed. A few did not work at all. The Goo Gone probably caused this, but I got all but two of the keys to work by working a Qtip dipped in rubbing alcohol in and around the blue ovals and their 1/2" square bases. The two holdouts - Z and V - were slow at first; not they don't work at all however hard I press. Possibly I broke a connection to the IC board underneath when I lifted these keys. The unit is a gem, like an old IBM without the clacking and with a softer touch. I'd very much like to use it for a change of pace. Any suggestions?

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I would completely remove the keyboard from the unit, it will be easier to clean and you can check to make sure that where your keyboard plugs into the board is tight, and that nothing in the cable looks cracked etc. Just be careful when taking it out, like dont bend the keyboard or be rough and know your keys off, they can be put back on, but its not an easy task, and takes patience.Most keyboards are easily removed by removing the strip at the top, usuall where the power button is etc. You might try just blowing it out really good first, maybe dust or a larger particle is caught under those keys.

Posted on Dec 22, 2009


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