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iMac (17-inch (Mid 2006/Late 2006 CD) Troubleshooting — Symptom Charts 153
USB
A USB device doesn’t work
Please unplug all of your USB devices from your iMac except your Apple Keyboard and Apple
mouse.
Now plug your device directly into the back of your iMac. Does it work as expected now?
Yes: Your device works when plugged directly into the computer. This indicates a conict
with one of the other USB devices. You can test by gradually adding your devices back
and seeing where the issue occurs, then contacting the manufacturer of the device(s)) for
assistance.
No: Unplug your device from the iMac and plug the keyboard into the port your device just
occupied. Is your keyboard still working?
Yes: Your Apple Keyboard works when plugged into the USB port your device was
plugged into. This points to an issue with your device. Please review the documentation that
came with your device. Install any necessary drivers and contact the manufacturer of your
device for assistance.
No: Replace the logic board
I see a message saying not enough power to function.
It appears that this device needs to be plugged into the computer’s USB port, rather than the
keyboard USB port. Any USB device connected to the keyboard needs to be either a self-powered
device (a USB device with its own AC power supply), or a low-power device (a device that does
not need a large amount of voltage to operate). Your device may draw more power than the
keyboard can provide.
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