Additional Keyboard Control Commands; System And Keyboard Leds; Figure 3-2 Power Led - Sun Microsystems Ultra 1 Creator Series Service Manual

3.8 Additional Keyboard Control
Commands
Stop Key
If the diag-switch? variable is set to true and POST is not to be executed when
the system is powered on, press and hold the keyboard Stop key and press the
keyboard power-on key.
Stop and N Keys
If the system NVRAM parameters are set to the original default settings, press and
hold the Stop and N keys before powering on the system. Continue to hold the Stop
and N keys until the system banner appears on the monitor.
3.9

System and Keyboard LEDs

The power LED, located at the chassis front, remains lighted when the system is
operating normally.
FIGURE 3-2
This section describes the keyboard light-emitting diode (LED) patterns as a result of
POST and their meaning. While POST is executing and making progress, the Caps
Lock key LED blinks while the rest of the LEDs are off. If POST finds an error, a
pattern is encoded in the LEDs to indicate the defective part. If POST completes with
no errors, all LEDs will be turned off before returning to the OpenBoot
(OBP).
3-12 Ultra 1 Creator Series Service Manual • August 1996
shows the location of the power LED.
FIGURE 3-2
Power LED
LED
‰
PROM