4-6 Assembly Access
4. Pull
out
on
card ejectors to release card from
110
backplane
and
slide card
out
of slot.
Note
Install
replacement
110
card
with
ejectors out (extended). Seat card
firmly
in
110
backplane and push ejectors
in
to
lock
card
in
place.
System
Control Module (SCM)
1.
SET THE POWER SWITCH ON THE
REAR
PANEL TO THE "0" POSITION AND DIS-
CONNECT THE AC POWER CORD FROM THE WALL OUTLET.
2.
Remove both front panels
and
the flip-top cover as previously described (Model 40 only).
3. Remove the top cover from the System
II
enclosure as previously described.
4.
Remove the
110
lid
by releasing the ac module cable from the cable clamp
and
removing the
four
#2
Pozidriv screws that attach the
110
lid
to the chassis.
5. Disconnect the service panel cable from the SCM.
CAUTION
CAREFULLY
HANDLE
SCM
TO
PREVENT
DAMAGE
TO
MODULE
FROM ELECTROSTATIC DISCHARGE OR OTHER CAUSES.
HOLD
BY
EJECTORS
OR
SIDE
EDGES
ONLY.
DO
NOT
TOUCH
EDGE CONNECTORS OR MODULE PLANES.
IMMEDIATELY
PLACE
SCM
IN
ANTISTATIC
BAG
OR
ON
ANTISTATIC
SURFACE.
6.
Pull
out
on
ejectors to release SCM from motherboard
and
slide SCM
out
of slot.
Note
Install
replacement
SCM
with
ejectors out (extended). Seat module
firmly
in
motherboard and push ejectors
in
to
lock
module
in
place.
Power Supply Assembly
WARNING
ENSURE
THAT
POWER SWITCH
ON
REAR
PANEL
IS
SET
TO
"0"
POSITION
AND
THAT
AC
POWER CORD
IS
DISCONNECTED
FROM
WALL
OUTLET BEFORE
REMOVING
POWER SUPPLY.
ALSO
ENSURE
THAT
POWER SUPPLY CAPACITORS
ARE
COM-
PLETEL
Y DISCHARGED
AS
DESCRIBED
BELOW.
1.
SET THE POWER SWITCH ON THE REAR PANEL
TO
THE
"0"
POSITION AND DIS-
CONNECT THE AC POWER CORD FROM THE WALL OUTLET.
2. Remove both front panels
and
the flip-top cover as previously described (HP 9040 only).
3. Remove the top cover from the System
II
enclosure as previously described.
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