IBM PCjr - SECTION 3. THE KEYBOARD

3. Set the system unit's Power switch to On.
4. Wait one minute.
DID YOU HEAR ONE BEEP?
One of the items removed is failing.
Reconnect them one at a time. Perform
advanced POST after each reconnection.
When the failing symptom returns, replace the
item that is causing the failure.
Repeat advanced POST and the advanced
tests to ensure that the IBM PC/r is operating
correctly.
Power 3-020-7