Sun Microsystems 60 service manual Additional Keyboard Control Commands, System and Keyboard LEDs

FIGURE 3-2

FIGURE 1-2

3.6Additional Keyboard Control Commands

■Stop Key

If the diag-level is set to either max or min and the diag-level 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.

Note –Press and hold the Stop key for approximately 5 seconds.

■Stop and N Keys

To set the system NVRAM parameters 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 displays on the monitor.

3.7System and Keyboard LEDs

The power light-emitting diode (LED), located at the chassis front, remains lighted

when the system is operating normally.shows the location of the power LED.

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 off and the system will return to the OpenBoot PROM (OBP). TABLE 3-2defines the

keyboard LED patterns.shows the location of the LED keys on the keyboard.

3-22Sun Ultra 60 Service Manual • August 2001