HP Apollo 9000 400t Manual de Serviço Página 114

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4-44 Fault Isolation
4.9.5 State and Failure Codes
Table 4-9 lists the LED state and failure codes used by the Boot ROMs.
Table 4-9. System Unit LED State and Failure Codes
LEDs State or Failure LEDs State or Failure LEDs State or Failure
No failure. Failed CPU
register test.
Replace emulator
board.
Testing the
top 16 KB
of memory.
Top 16 KB of memory
missing or not found.
Check memory in
slot 0A.
Searching for
user supplied
extension ROM.
Started executing
extension ROM
instructions.
Starting test
vector list.
Resetting all
interfaces.
I/O on-board
test code
running.
Internal
checksum.
DIO-II
console testing.
Failed Boot ROM
checksum.
Replace
CPU
board.
Preloading memory
for main test.
Testing memory. Failure:
not enough
memory.
Replace slot 0A
memory module.
(Continued)
A
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A
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A
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D
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A
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F
G
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A
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D
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A
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A
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A
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F
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H
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