Thread: The keyboard is acting erratically.

Symptom 3:

One or more keys may be stuck or repeating. Suspect a shorted or jammed key? Short circuits can be caused by conductive foreign objects (such as staples and paper clips) falling into the keyboard and landing across PC board contacts. Remove power supply and disassemble the keyboard housing assembly. Once the keyboard is exposed, shake out the foreign particles or remove it with a pair of needle-nose pliers or sharp tweezers.



Accumulations of dirt or debris can restrict the working of keyboard keys. Apply good-quality electronics-grade contact cleaner to the key, and work the key in and out to distribute the cleaner evenly. If the key returns to normal, you may reassemble the computer and return it to service. Keys that remain jammed should be replaced. If you cannot clear the jammed key, simply replace the entire keyboard assembly. If you elect to replace the keyboard assembly, retain the old assembly for parts. Key caps, good switches, and cable assemblies can be used in future repairs