Toshiba T4900CT Manual page 67

Subtest 02 Pressed key code display
When a key is pressed, the scan code, character code, and keytop name are
displayed on the screen in the format shown below. The Ins, Caps Lock,
Num Lock, Scroll Lock, Alt, Ctrl, Left Shift, and Right Shift keys are
displayed in reverse screen mode when pressed. The scan codes, character
codes, and keytop names are shown in Appendix D.
KEYBOARD TEST IN PROGRESS 302000
Ins Lock Caps Lock Num Lock
Alt
PRESS [Enter] KEY
Subtest 03 PS/2 mouse connect check
NOTE: To execute the PS/2 mouse connect check, a PS/2 mouse must be
connected to the computer.
This subtest checks whether a PS/2 mouse is connected or not.
If this test does not detect an error, it returns to the subtest menu.
If this test detects an error, the following message appears:
KBC - MOUSE INTERFACE ERROR
3-12
Scan code
Character code
Keytop
Ctrl Left Shift Right Shift
=
=
=
Scroll Lock
[[ HALT OPERATION ]]
1: Test end
2: Continue
3: Retry
T4900CT