Epson LT - 286e Controller Test, Scan/ASCII Code Test, Keyboard Clock Line Test, Keyboard Data Line Test, Ctrl Break

Controller Test

This test checks the keyboard controller.

Scan/ASCII Code Test

This test checks the scan codes assigned to the keys on the keyboard.

When you select this test, DIAG displays the layout of your keyboard on the screen.

When you press a key, DIAG displays the scan code and the ASCII code of the key. See the “Keyboard Scan/ASCII Codes” section later in this booklet for a complete list of the scan codes and ASCII codes for your keyboard.

Press Ctrl Break at any time to end this test.

Keyboard Clock Line Test

This test checks the keyboard clock line.

Keyboard Data Line Test

This test checks the keyboard data line.

System Diagnostics 35