If The Menu Displays Garbage; If You Encounter Other Problems - Epson HX-20 Operation Manual

The RESET switch will interrupt the HX-20, no matter how busy
it may be. Once interrupted, the HX-20 will notice that the ON-OFF
switch is in the "OFF" position, and it will stop processing. This will
make the screen go blank.
Symptom:
Cause:
Recommended
Action:
If you encounter problems not discussed in this chapter, or if the
recommended action fails to correct the problem, contact your
Epson dealer.
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The menu displays garbage-a hodgepodge of
letters, numbers, and/ or graphics characters.
The Operating System of the HX-20-the soft-
ware that controls its menu-has become very
confused. This may have been caused by a pro-
gram that interfered with reserved portions of
memory.
Did you store any programs in memory? If so,
select each program from the menu and LIST it.
If any program is intact, take this opportunity to
save it on a cassette. (See the Epson HX-20 BASIC
Tutorial and Reference Manual.) Unfortunately,
whatever garbled your menu may have garbled
your programs, too. If the listings of your pro-
grams look like garbage, there's no point in saving
them.
Now, to clean up your menu you must re-initialize
memory and the calendar clock, as described on
page 25. This will make the HX-20 start with a
clean slate, forgetting any programs that were in
its memory. But at least the menu will no longer
have garbage in it.
Having re-initialized memory, you can once
again enter your programs into the HX-20, by
hand or by loading them from cassette.