Hi!
If my memory isn't playing tricks on me again
....
It should be somewhere in the Utility mode. Or "System" mode as they called it. ALthough I could be mixing it up with some other FM toys of mine. I have quite a few here.
Hey I'll ask my wife to dig up some old manuals. I sold my TX81z about a year ago but kept the manual because .. well I forgot to give it to the guy I sold it to.
-ED_
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A gentleman is one who never hurts anyone's feelings unintentionally.
- - - Oscar Wilde