IBM Type 8720 Manual Do Utilizador

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Upper flex circuit assembly
Captive fasteners
7.
   
Carefully
 
remove
 
the
 
old
 
upper
 
flex
 
circuit
 
assembly
 
by
 
placing
 
your
 
fingers
 
under
 
the
 
lower
 
edge
 
of
 
the
 
assembly
 
and
 
pulling
 
the
 
unit
 
out
 
of
 
the
 
chassis.
 
 
8.
   
Remove
 
the
 
new
 
upper
 
flex
 
circuit
 
assembly
 
from
 
the
 
packaging.
 
 
9.
   
Align
 
the
 
assembly
 
so
 
that
 
the
 
stamped
 
position
 
identifier
 
″Top″
 
is
 
facing
 
you.
 
10.
   
Position
 
the
 
front
 
end
 
of
 
the
 
new
 
upper
 
flex
 
circuit
 
assembly
 
into
 
the
 
assembly
 
bay
 
in
 
the
 
chassis,
 
making
 
sure
 
the
 
leading
 
edge
 
rests
 
on
 
the
 
lower
 
shelf
 
of
 
the
 
bay.
 
 
CAUTION:
 
Be
 
careful
 
not
 
to
 
damage
 
the
 
EMI
 
gaskets
 
located
 
on
 
the
 
vertical
 
sides
 
of
 
the
 
upper
 
flex
 
circuit
 
assembly
 
bay.
 
11.
   
Carefully
 
push
 
the
 
assembly
 
all
 
the
 
way
 
into
 
the
 
bay.
 
12.
   
Using
 
a
 
screwdriver,
 
tighten
 
the
 
two
 
captive
 
fasteners
 
on
 
the
 
new
 
upper
 
flex
 
circuit
 
assembly.
 
Note:
  
Torque
 
the
 
screws
 
to
 
8
 
inch-pounds.
 
13.
   
Reinstall
 
the
 
I/O
 
switch
 
that
 
you
 
removed.
 
14.
   
If
 
you
 
have
 
no
 
other
 
replacement
 
procedures
 
to
 
perform
 
at
 
the
 
rear
 
of
 
the
 
system,
 
re-install
 
the
 
LAN
 
module
 
(see
 
 
and
 
the
 
KVM
 
module
 
(see
 
 
15.
   
Reconnect
 
the
 
power
 
to
 
the
 
system
 
(see
 
 
16.
   
For
 
Type
 
8720
 
systems,
 
reinstall
 
dc
 
terminal
 
covers.
 
17.
   
Start
 
up
 
the
 
system
 
(see
 
Lower
 
flex
 
circuit
 
assembly
 
Complete
 
the
 
following
 
steps
 
to
 
replace
 
the
 
lower
 
flex
 
circuit
 
assembly.
 
Note:
   
v
   
Read
 
v
   
Read
 
the
 
safety
 
notices
 
at
 
″Safety
 
information
 
on
 
page
 
 
v
   
Read
 
 
1.
   
Shut
 
down
 
the
 
system
 
and
 
remove
 
power
 
from
 
the
 
system
 
(see
 
 
 
72
 
BladeCenter
 
T
 
Type
 
8720
 
and
 
8730:
 
Hardware
 
Maintenance
 
Manual
 
and
 
Troubleshooting
 
Guide