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Epson HX-20 Epson, HX-20, BASIC, If the menu displays garbage, If you encounter other problems, Tutorial and Reference Manual.) Unfortunately

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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.

If the menu displays garbage...

Symptom:The menu displays garbage-a hodgepodge of letters, numbers, and/ or graphics characters.

Cause:	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.

Recommended Did you store any programs in memory? If so,

Action:	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.

If you encounter other problems...

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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Contents

HX-20OPERATIONS MANUAL Page Federal Communications Commission Radio Frequency Interference Statement CONTENTS 1 Congratulations 3 Preparing your HX-20for use Using the 6 Connecting your HX-20to other devices 7 What if you have problems 8 Storing your Congratulations memory even when you turn it off BASIC Tutorial and Reference Manual graphics option ROM option cartridges Option cartridges program micro- cassette expansion unit o n e o r m o r e f l o p p y - d i s k on-line bar code reader personal Cautions Do not remove the system bus cover system bus expansion unit Treat the circuit cover with care Use only the HX-20AC adapter to charge HX-20batteries It is not designed to run your directly AC current Don’t overcharge the batteries Don’t pull on the paper when the printer is active Connect the HX-20only to appropriate peripherals Protect the HX-20from physical shock Protect the HX-20from extreme humidity Protect the HX-20from extreme heat and cold Page Preparing your HX-20for use 6)The Epson HX-20BASIC Tutorial and Reference Manual Charging the batteries Preparing the printer for use Removing the printer cover Inserting the paper roll not Page Page Inserting the ribbon cartridge Replacing the printer cover Adjusting the viewing angle optimal viewing angle: your CTRL/@Initialize MONITOR BASIC Enter DATE and TIME MMDDYYHHMMSSG Figure Format for Specifying Date and Time time Selecting a different character set dealer reference may The BASIC Tutorial and Reference Manual Page DIP Switch Settings for off Page Using the HX-20 up scroll down window Keys You May Use To View The Menu top bottom Choosing an item from the menu the key Epson HX-20Technical Reference Manual See screen editor The screen editor insert delete The cursor Page cursor cursor up down four Scrolling scrolls Homing the cursor homing NOW IS THE TIME F f-ALLGOOD MEN TO CO ALL GOOD MEN TO COM TIME FOR ALL GOOD M D OF THEIR PARTY Retyping change type over Deleting text right Insert mode insert mode exited inserted move to the right exit and lower case upper case while you are holding down lower case Numeric mode numbers innumeric mode 7 8 9 U J K L M Non-Numeric Characters Available in Numeric Mode Screen Editor Modes Graphic characters graphic characters musical note telephone Printing the screen hard copy so specialfunction LCD Page Using the special function keys programmable BASIC Tutorial and Reference Manual manual microcassette mode Page Connecting your HX-20to other devices Page BASIC Connecting your HX-20to an RS-232device RS-232 compatible device parallel communicate protocol HX-20Default Protocol for RS-232Port BASIC Tutorial and Reference Manual.) Connecting your HX-20to a bar code reader Page Page What if you have problems If the menu displays garbage BASIC Tutorial and Reference Manual.) Unfortunately If you encounter other problems Storing your HX-20 Page Specifications HX-20Architecture Expansion HX-20Expansion Specifications CPU and Memory Internal Expansion Expansion External Expansion Serial Peripheral Cartridge Cartridge Type External Cassette AC Adapter (Battery Charger) Switches Internal External Keyboard and Character Set CX-20Acoustic Coupler Display Controller Switch Box RS-232CCables Serial Cables (High Speed)