USB and FireWire
PowerBook (FireWire)
20
Troubleshooting
USB or FireWire device such as digital camera not
recognized by computer
Note: If you are trying to use a serial device with a USB/
Serial adapter, check with the manufacturer for
compatibility.
1. Verify current driver for the device is installed.
2. Turn on camera before launching desktop video (DV)
application.
3. Try different USB
or FireWire device on same port.
4. Eliminate chain by plugging in only one device.
5. Try the other USB
or FireWire port.
6. Replace I/O logic board.
I/O devices are unrecognized, or garbage is
transmitted or received
1. Check cables.
2. Check with vendor for current drivers.
3. Try other USB
or FireWire port.
4. Reset PRAM.
5. Test device with known-good computer.
6. Replace I/O logic board.
Cursor does not move when you are using trackpad
1. Shut down computer, unplug power adapter, and remove
battery. Let computer sit for one minute before
restarting.
2. Reset power manager (press the reset button behind the
I/O door.
3. Check trackpad connections.
4. Connect USB mouse and try to move cursor. If
trackpad
does not move cursor but external USB mouse does,
replace trackpad (included in top case).
5. Replace I/O logic board.
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