Defective Clock+ Board - Sun Microsystems Enterprise 6500 Reference Manual

10.8

Defective Clock+ Board

There is one clock+ board in the system.
Caution – The clock+ board is not hot-pluggable. You must halt the operating
system and turn off AC power before replacing the clock+ board.
Begin INDICATION
System will not boot
Clock+ board yellow "service"
LED does not light during
POST or remains lighted
after POST
System and board LEDs do not
flash, or fail POST
repeatedly with random
LED patterns
TTY port A does not respond
End
FIGURE 10-8
TEST/PROCEDURE
Examine LED displays.
Check clock+ board.
Check clock+ board and power
supplies.
Check settings for the port.
Replace peripheral power supply.
Diagnosing a Defective Clock+ Board
Chapter 10 Flow Diagrams for Troubleshooting
REFERENCE
See .
TABLE 9-1
See .
FIGURE 10-7
Section 9.1 "Using a
Terminal."
10-9