IBM PCjr

1. Set the system unit's Power switch to Off.
2.
Remove the 64BCB memory and display expansion.
3. Perform advanced POST.
DID THE IBM LOGO SHOWN DURING
ADVANCED POST LOOK CORRECT AND
STABLE?
YES The 64KB memory and display expansion is
bad. Replace it.
Repeat advanced POST and the advanced
tests to ensure that the IBM VCjr is operating
correctly.
NO Reattach the 64KB memory and display
expansion.
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3-500-8 Display