IBM 6643 Personal Computer User Manual


 
About
this
manual
Important
safety
information
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Online
support
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This
manual
contains
service
and
reference
information
for
the
IBM
Personal
Computer,
Types
2179
and
6643.
This
manual
is
divided
into
product
service
sections,
by
type,
and
a
related
service
section
as
follows:
v
The
product
service
sections
include
procedures
for
isolating
problems
to
a
FRU,
a
Symptom-to-FRU
Index,
additional
service
information,
and
an
illustrated
parts
catalog.
v
The
related
service
section
includes
safety
notices
and
safety
information,
and
problem
determination
tips.
Attention:
This
manual
is
intended
for
trained
servicers
who
are
familiar
with
IBM
Personal
Computer
products.
Use
this
manual
along
with
advanced
diagnostic
tests
to
troubleshoot
problems
effectively.
Before
servicing
an
IBM
product,
be
sure
to
review
the
“Safety
notices
(multi-lingual
translations)”
on
page
77
and
“Safety
information”
on
page
102.
Important
safety
information
Be
sure
to
read
all
caution
and
danger
statements
in
this
book
before
performing
any
of
the
instructions.
Leia
todas
as
instruções
de
cuidado
e
perigo
antes
de
executar
qualquer
operação.
©
Copyright
IBM
Corp.
2004
iii