Computer exploded view (types 2179 and 6643), Computer, Exploded – IBM 6643 User Manual
Page 26: View, Types
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2.
Replace
system
board.
If
you
are
unable
to
correct
the
problem,
go
to
Computer
exploded
view
(Types
2179
and
6643)
I/O
connectors
and
removal
procedures
are
described
on
the
following
pages.
Note:
The
number
of
defective
pixels
to
qualify
a
TFT
LCD
panel
to
be
replaced
under
warranty
is
8
or
more
for
all
types
2179
and
6643
computers.
18
Hardware
Maintenance
Manual
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