IBM 4800-741 Hardware Service Guide - Page 43

Removal, replacement, procedures

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Updated July 14, 2008 Chapter 2. Removal and replacement procedures Before you begin 26 Cables, connectors, and headphones 26 Connecting your cash drawer to SurePOS Models 721, 741, and 781. . . . . 27 Removing the slanted I/O trays 28 Removing the covers 29 Removing the top plate 32 Removing the CD-ROM 33 Removing the hard disk drive 36 Removing the exhaust fan (Models 742 and 782 only 38 Replacing the insulating rubber seal (Models 722, 742, and 782 only). . . . . 39 Removing the spline 41 Removing the I/O modules 42 Removing the I/O module holders 43 Removing the air duct (Models 722, 74x, 78x, and C4x 44 Removing the processor fan (Models 742, 782 only 45 Removing the heat sink and processor 45 Removing the control switch card 47 Removing the power supply 48 Removing the riser card 49 Removing the planar 54 Removing the UPS 56 Removing the expansion housing 58 Removing the UPS battery 60 Removing the front USB card 61 Removing the memory modules 62 Removing the front service housing components (wide models only) . . . . . 64 Removing the system and bezel latches 64 Removing the pull-out handle 66 Removing the cable guide 66 Removing the cable guide arm assembly 67 Routing the cables 69 This chapter describes how to remove and replace the field replacement parts. © Copyright IBM Corp. 2003, 2008 25

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Chapter
2.
Removal
and
replacement
procedures
Before
you
begin
.
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.
. 26
Cables,
connectors,
and
headphones
.
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.
.
.
.
. 26
Connecting
your
cash
drawer
to
SurePOS
Models
721,
741,
and
781
.
.
.
.
. 27
Removing
the
slanted
I/O
trays
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 28
Removing
the
covers
.
.
.
.
.
.
.
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.
.
.
.
. 29
Removing
the
top
plate
.
.
.
.
.
.
.
.
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.
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.
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.
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.
.
.
.
. 32
Removing
the
CD-ROM
.
.
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.
.
.
.
. 33
Removing
the
hard
disk
drive
.
.
.
.
.
.
.
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.
.
.
.
.
.
.
.
.
.
. 36
Removing
the
exhaust
fan
(Models
742
and
782
only)
.
.
.
.
.
.
.
.
.
. 38
Replacing
the
insulating
rubber
seal
(Models
722,
742,
and
782
only)
.
.
.
.
. 39
Removing
the
spline
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 41
Removing
the
I/O
modules
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 42
Removing
the
I/O
module
holders
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 43
Removing
the
air
duct
(Models
722,
74x,
78x,
and
C4x)
.
.
.
.
.
.
.
.
.
. 44
Removing
the
processor
fan
(Models
742,
782
only)
.
.
.
.
.
.
.
.
.
.
. 45
Removing
the
heat
sink
and
processor
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 45
Removing
the
control
switch
card
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 47
Removing
the
power
supply
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 48
Removing
the
riser
card
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 49
Removing
the
planar
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 54
Removing
the
UPS
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 56
Removing
the
expansion
housing
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 58
Removing
the
UPS
battery
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 60
Removing
the
front
USB
card
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 61
Removing
the
memory
modules
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 62
Removing
the
front
service
housing
components
(wide
models
only)
.
.
.
.
. 64
Removing
the
system
and
bezel
latches
.
.
.
.
.
.
.
.
.
.
.
.
.
. 64
Removing
the
pull-out
handle
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 66
Removing
the
cable
guide
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 66
Removing
the
cable
guide
arm
assembly
.
.
.
.
.
.
.
.
.
.
.
.
.
. 67
Routing
the
cables
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
. 69
This
chapter
describes
how
to
remove
and
replace
the
field
replacement
parts.
Updated
July
14,
2008
©
Copyright
IBM
Corp.
2003,
2008
25