Toshiba PORTEGE M400 Maintenance Manual page 167

3.21 Only One Test
Subtest 01 Pressed Key Display
When you execute this subtest, the keyboard layout is drawn on the display as
shown below. When any key is pressed, the corresponding key on the screen
changes to the key character that was pressed. Holding a key down enables
the auto-repeat function which causes the key's display character to blink.
Press Del + Enter to end the test.
PORTEGE M400 Maintenance Manual (960-541)
IF TEST OK, Press [Dell][Enter]key
3 Tests and Diagnostics
[CONFIDENTIAL] 3-49