Assembly
Access 4-27
CAUTION
CAREFULLY HANDLE BOARD TO PREVENT DAMAGE FROM
ELECTROSTATIC
DISCHARGE
OR
OTHER CAUSES.
HOLD
BY
EJECTORS OR
SIDE EDGES ONLY. DO NOT TOUCH EDGE CON-
NECTOR CONTACTS
OR
BOARD PLANES. IMMEDIATELY PLACE
BOARDS
IN ANTISTATIC BAGS
OR
ON ANTISTATIC SURFACE.
12. Remove
all
boards by pulling
out
on
ejectors to release boards from stack motherboard
and
sliding boards
out
of slots.
13. Remove
16
#1
Pozidriv screws, 8 from the top of the case
and
8 from the bottom, that attach
the 4 card gUides to the case,
and
remove the card
gUides.
14. Loosen two slotted captive screws that hold clock board to stack motherboard.
15. Disconnect clock board from processor stack motherboard at inline connector.
16.
Pull clock board straight
out
of motherboard
and
out
of stack.
17. Remove four # 1
Pozidriv screws, two at top
and
two at bottom, that attach motherboard to
case. Do not remove the two middle screws. They attach the motherboard supports to the
motherboard.
18. Remove eight
#1
Pozidriv screws, four at bottom
and
four at back, that attach the connector
tie
bar
to the case.
19. Remove the motherboard
and
its
attached supports
and
connector tie
bar
from the case.
20. Remove the connector tie bar
and
motherboard supports from the motherboard. Retain for
installation
on
the replacement motherboard.
Display
The display must be removed before the rear cover can
be
removed. It must also
be
removed to
service the display itself
or
to access the display interface module
(DIM)
or
alpha/interface board.
The
DIM
or
alpha/interface board
is
mounted to the bottom of the display. The
DIM
is
used with the
98770A
and
98780A displays. The alpha/interface board
is
used with the 98760A display.
1.
UNPLUG COMPUTER POWER CORD FROM
AC
OUTLET.
2.
Pull both display latches toward front of computer, unlatching display from support legs
(Figure 4-7).
WARNING
THE DISPLAY MAY
BE
HEAW.
TO AVOID DAMAGE TO EQUIP-
MENT OR PERSONAL INJURY, TWO PEOPLE MAY
BE
REQUIRED
TO LIFT THE DISPLAY (FIGURE 4-8)
3.
Lift
display from computer.
09020-90037.
rev
185
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