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IBM PCjr Hardware Maintenance And Service

IBM PCjr
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1.
Set
the
system
unit's
Power
switch
to
Off.
2.
Remove
the
modem
and
set
it
aside.
Make
a
note
that
this
is
modem
#1.
3.
Attach
a
new
modem
to
the
system
board.
Make
a
note
that
this
is
modem
#2.
4.
Set
the
system
unit's
Power
switch
to
On.
5. Bring
the
advanced-test
menu
to
your
display
IS
THE
ID
UNDER
THE
MODEM
SYMBOL
BLINKING?
Replace
the
system
board.
Reattach
the
original
modem
(modem
#1).
Repeat
advanced
POST
and
the
advanced
tests
to
ensure
that
the
IBM
PCjr
is
operating
correctly.
The
problem
has
been
corrected.
Repeat
advanced
POST
and
the
advanced
tests
to
ensure
that
the
IBM
PCjr
is
operating
correctly.
3-830-6
Internal
Modem

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IBM PCjr Specifications

General IconGeneral
BrandIBM
ModelPCjr
CategoryDesktop
LanguageEnglish

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