IBM PCjr

1. Set the system unit's Power switch to Off.
2. Remove the connector for television and set it aside.
Make a note that this is connector for television #1.
3. Attach a new connector for television. Make a note
that this is connector for television #2.
4. Perform advanced POST.
DID THE IBM LOGO SHOWN DURING
ADVANCED POST LOOK CORRECT AND
STABLE?
YES The problem has been corrected. Repeat
advanced POST and the advanced tests to
ensure that the IBM PCyr is operating
correctly.
NO The system board is bad. Replace it.
Reattach the original connector for television
(connector for television #1)
Repeat the advanced POST and advanced
tests to ensure that the IBM VCjr is operating
correctly.
3-500-10 Display