Sun Microsystems Blade 1500 - Battery Problem

4-40 Sun Blade 1500 Service, Diagnostics, and Troubleshooting Manual • December 2004
4.4.4 Battery Problem
FIGURE 4-35 Battery Problem
Is the
system clock keeping
correct date and time?
Replace the battery. See
“Replacing the Battery”
on page 11-22.
Check the real-time clock
with OpenBoot Diagnos-
tics. See “OpenBoot Diag-
nostics” on page 8-5.
Return to “Power-On
Flowchart” on page 4-3.
There is a problem with
the battery.
Did this solve
the problem?
Return to “Power-On
Flowchart” on page 4-3.
Y
N
Y
N
In normal operation, the battery supplies voltage to the
real-time-clock to maintain time and date while the power
is off.
Consistently incorrect time and date most likely indicate a
dead battery.
Checking a component means checking the electrical con-
nections and fit.