IBM PCjr - Page 59

1. Set the system unit's Power switch to Off.
2. Install a new 64KB memory and display expansion.
3. Perform advanced POST.
DID YOU HEAR ONE BEEP?
The problem has been corrected.
Reconnect all removed items, then repeat
advanced POST and the advanced tests to
ensure that the IBM PCjr is operating
correctly.
The system board is bad. Replace it.
Reattach the original 64KB memory and
display expansion.
Reconnect all other removed items, then
repeat advanced POST and the advanced tests
to ensure that the IBM PCjr is operating
correctly.
Power 3-020-5