Texas Instruments Extensa 600 Series - Manual (Page 34)

Using Indicator Lights
2-13
Caps Lock
Indicator Lights when the caps lock function is
toggled ON using the Caps Lock key.
Num Lock
Indicator Lights when the embedded numeric
keypad is toggled ON using the Num
Lock hot key (Fn+F7). Refer to Using
the Internal Numeric Keypad
later in
this section for further details.