Symptom
Action
The
power
on/off
LED
on
an
I/O
drawer
operator
panel
does
not
come
on
or
stay
on.
(both
the
I/O
drawer
operator
panel
power-on/off
LED
and
the
I/O
drawer
power
supply
LEDs
do
not
come
on
or
stay
on).
Go
to
“MAP
1520:
Power”
on
page
89.
A
rack
or
a
rack
mounted
unit
will
not
power
on.
Go
to
“MAP
1520:
Power”
on
page
89.
You
have
a
power
problem.
Go
to
“MAP
1520:
Power”
on
page
89.
The
system
attention
LED
on
the
primary
I/O
drawer
operator
panel
is
on
and
there
is
no
SRN
displayed.
Go
to
“MAP
1520:
Power”
on
page
89.
888
sequence
in
Operator
Panel
Display
An
888
sequence
is
displayed
in
the
primary
I/O
drawer
operator
panel
display.
Go
to
the
Fast
Path
MAP
in
the
Diagnostics
Information
for
Multiple
Bus
Systems
.
Other
Symptoms
or
Problems
The
operator
panel
displays
OK.
Fans
and
blowers
are
off.
The
service
processor
(SP)
is
ready.
The
system
is
waiting
for
power-on.
All
of
the
system
POST
indicators
are
displayed
on
the
system
console,
the
system
pauses
and
then
restarts.
The
term
″
POST
indicators
″
refers
to
the
device
mnemonics
(words
memory
,
keyboard
,
network
,
scsi
,
and
speaker
)
that
appear
on
the
system
console
during
the
power-on
self-test
(POST).
Go
to
“Boot
Problems
and
Concerns”
on
page
159.
The
system
stops
and
all
of
the
POST
indicators
are
displayed
on
the
system
console.
The
term
″
POST
indicators
″
refers
to
the
device
mnemonics
(words
memory
,
keyboard
,
network
,
scsi
,
and
speaker
)
that
appear
on
the
system
console
during
the
power-on
self-test
(POST).
Go
to
“MAP
1540:
Minimum
Configuration”
on
page
113
to
isolate
the
problem.
The
system
stops
and
the
message
STARTING
SOFTWARE
PLEASE
WAIT...
is
displayed
on
the
system
console.
Go
to
Chapter
4,
“Checkpoints,”
on
page
137.
Chapter
3.
Maintenance
Analysis
Procedures
81
Summary of Contents for 6H0
Page 2: ......
Page 12: ...x Service Guide ...
Page 16: ...xiv Service Guide ...
Page 18: ...xvi Service Guide ...
Page 28: ...R CEC Drawer 5 EIA Units Primary I O Drawer 5 EIA Units 8 Service Guide ...
Page 29: ...CEC Drawer Front View 1 1 Power On LED Chapter 1 Reference Information 9 ...
Page 33: ...5 Fan 4 U0 1 F4 6 Fan 3 U0 1 F3 Chapter 1 Reference Information 13 ...
Page 37: ...5 Fan 4 U0 2 F4 6 Fan 3 U0 2 F3 Chapter 1 Reference Information 17 ...
Page 77: ...DC Power Cable Routings Chapter 1 Reference Information 57 ...
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Page 94: ...74 Service Guide ...
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Page 468: ...Replacement Replace in reverse order 448 Service Guide ...
Page 489: ...Chapter 10 Parts Information This chapter contains parts information for the system 469 ...
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Page 493: ...1 2 3 4 5 6 7 8 9 10 11 Chapter 10 Parts Information 473 ...
Page 497: ...7 8 9 10 6 1 2 3 4 4 5 Chapter 10 Parts Information 477 ...
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