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Sun E450 Dead "all of a sudden"

 
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westphal
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PostPosted: Sun Feb 11, 2007 1:30 am    Post subject: Sun E450 Dead "all of a sudden" Reply with quote
My Sun E450 shows no sign of life, all of a sudden. It worked fine one day.
The next day ... no life.

1) Turn main power switch ON ...
power supply LEDs are lit:

Load Status : green
AC-Present-Status : green
DC Status : off

DC Status means: This green LED is lit to indicate that all DC outputs from
the power supply are functional.

The DC Status LED is OFF on all three power supplies. Is this a problem?
What causes it?

Inside the machine, on the power distribution board, the LED labeled U0203
is lit green. What does this mean?


2) Turn key switch ON ... absolutely nothing happens. No drive activity,
no monitor activity, no beeping. Nothing changes, nothing goes ON or OFF.

I cannot find troubleshooting info about this problem. Any help or advice
is appreciated.

Bill Westphal
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