Sun Microsystems 6.0005E+11 Hardware Indicators, Turn the keyswitch to the diagnostic position

9

5.Turn the keyswitch to the diagnostic position ().

The system will turn on. The diagnostic position puts POST in interactive mode and enables extensive POST tests.

TTY Serial Port A

Figure 9-1TTY Serial Port A

9.2 Hardware Indicators

Use the LEDs on the system front panel or the clock board to determine if the system is operating normally. Use the LEDs on individual boards and power supplies to locate specific malfunctions.

Many of the LED codes listed in Table 9-1 are common to the system front panel and various types of boards. See Table 9-2 for exceptions for LED codes for system boards.

9-2 Ultra Enterprise 6000/5000/4000 Systems Manual—November 1996