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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
64KB
memory
and
display
expansion
and
set
it
aside.
3.
Perform
advanced
POST.
The
IBM
Personal
Computer
Basic
Version
01.20
Copyright
IBM
Corp.1981
XXXXX
Bytes
free
OK
iHEO
2liL!i:p
3[EZaa
40333
sk-IOB
DID
ADVANCED
POST
SUCCESSFULLY
COMPLETE?
The
64KB
memory
and
display
expansion
is
bad.
Replace
it.
Repeat
advanced
POST
and
the
advanced
tests
to
ensure
that
the
IBM
PCyr
is
operating
correctly.
Reattach
the
64KB
memory
and
display
expansion.
Continue
to
the
next
page.
Diskette
Drive
3-600-19

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IBM PCjr Specifications

General IconGeneral
BrandIBM
ModelPCjr
CategoryDesktop
LanguageEnglish

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