IBM PCjr

1. Remove the diskette from the diskette drive.
2. Turn the diskette upside-down.
3. Insert the upside-down diskette into the diskette
drive.
4. Perform the diskette-drive advanced test (enter the
code word when you are prompted).
0
1
\/
•
0503
/| f}
9
.111/
-^J, K-
64 KB *
-E-
E:::
DO YOU HAVE "0503" UNDER THE
DISKETTE-DRIVE SYMBOL?
NO The diskette drive is bad. Replace it.
Repeat advanced POST and the advanced
tests to ensure that the IBM PCjr is operating
correctly.
YES The advanced test successfully detected a
write-protected diskette.
You have completed the diskette drive PIC. If
you still have an unsolved problem, you should
seek technical assistance.
3-600-24 Diskette Drive