IBM PCjr Manual page 155

15 Remove the cartridge and reinsert it.
After the screen clears, does the
cartridge program screen appear?
YES - Go to Step 20.
NO - Have your IBM PC/>
serviced. See "Service
Information" in this
section.
16 Insert the cartridge into the right
cartridge slot of your IBM PC/>.
After the screen clears, does the
cartridge program screen appear?
YES - Remove the cartridge and
insert it into the left
cartridge slot again. Go to
Step 17.
NO - Remove the cartridge and
go to Step 18.
17 After the screen clears, does the
cartridge program screen appear?
YES - Go to Step 20.
NO - Have your IBM PCyr
serviced. See "Service
Information" in this
section.
First Things First 6-13