Sun Microsystems SPARCstation 5 Model 110 Service Manual page 38

Four different LEDs on the keyboards are used to indicate the progress and results of
the POST. These LEDs are on the Caps Lock, Compose, Scroll Lock, and Num Lock
keys, as shown in
the POSTs, the four LEDs briefly light all at once. The monitor screen remains blank,
and the Caps Lock LED blinks for the duration of the POST.
Caps Lock LED
(UNIX keyboard)
FIGURE 3-1
FIGURE 3-2
3-2 SPARCstation 5 Model 110 Service Manual • November 1996
,
FIGURE 3-1 FIGURE 3-2
Scroll Lock
LED
Caps Lock LED
(U.S. keyboard)
Arrangement of Sun Type-5 Keyboard Diagnostic LEDs
Caps Lock
LED
Sun Type-4 Keyboard
, and
FIGURE 3-3
Num Lock
LED
Compose
LED
Compose
LED
. To indicate the beginning of
Scroll Lock Num Lock
LED LED