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Series 3800 Product Reference Guide
Self Test Function
Command mode includes a Self Test function which verify that terminal hardware
components are operating properly. Components tested include:
Real-time clock (RTC)
!
Battery power
!
Keyboard codes
!
Liquid crystal display (LCD) controller
!
Read-only memory (ROM), random-access memory (RAM), expanded memory
!
(EMS), and non-volatile memory (NVM) CRC.
Run self test if you suspect a problem with the hardware. Except for keyboard testing, no
operator input is necessary after selecting a test screen.
Running Self Test
Access the Self Test function from the Command Mode Menu:
1. Boot to Command Mode (refer to Chapter 5, Operating the Series 3800, for boot
sequences).
2. At the Command Mode Main Menu, use the UpArrow or DownArrow to scroll
through the options.
3. Highlight Self Test and press <Enter>.
Press <CLR> in any self test screen to return to the Self Test screen, or from the Self Test
screen to return to the Command Mode screen.
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Troubleshooting
