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Troubleshooting Symptom Charts/External Floppy Drive - 10
External Floppy Drive
Audio and video
present, but external
drive does not operate
1 Check floppy-adapter-to-PowerBook connection.
2 Try known-good floppydisk.
3 Check floppy drive cable connection.
4 Replace floppy drive cable.
5 Replace floppy adapter.
6 Replace floppy drive.
7 Check that logic board docking connector is protected by
mylar covering.
8 Replace logic board.
Note:
When replacing the logic board, check that the serial port
EMI clip is attached to the bottom of the CPU stiffener. If it is
missing, replace the stiffener. On international units, also
replace the stiffener if the modem EMI clip is missing. The “CPU
Stiffener” topic in Take Apart helps you locate and identify the
two EMI clips.