Apple 2300C manual External Floppy Drive

Troubleshooting Symptom Charts/External Floppy Drive - 10

External Floppy Drive

Audio and video present, but external drive does not operate

1Check floppy-adapter-to-PowerBook connection.

2Try known-good floppydisk.

3Check floppy drive cable connection.

4Replace floppy drive cable.

5Replace floppy adapter.

6Replace floppy drive.

7Check that logic board docking connector is protected by mylar covering.

8Replace 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.