HP48SX - shift keys won't stay shifted

[Han]

(03-07-2014 09:05 PM)Bruce Larrabee Wrote:  I've got a HP48SX. It's shift keys ( left, right, alpha) won't stay shifted. When you push the key the annunciator comes up but when you release the key it goes away again. Has anyone encountered this? Any solutions?

Is this an annunciator/screen issue? In other words, (ignoring the actual annunciator) if you press [Alpha] followed by [A] does the command line still produce the letter A? Or does the calculator think you only pressed the soft menu corresponding to A?