Apple LATE 2009 manual Wired Keyboard Does Not Function Properly

Wired Keyboard Does Not Function Properly

Quick Check

Symptoms	Quick Check
Wired Keyboard Does Not	1.	The system has 5 USB ports on the rear of the
Function Properly		computer. Make sure to try each port to isolate a
• Some or all keys on the		particular port malfunction.
keyboard don’t work	2.	Test with a known good wired keyboard to
• Eject key or Caps Lock key		isolate a failed peripheral issue.
doesn’t seem to work	3.	Test the keyboard on another Mac. If it works
• Some keys don’t work as
		here, you may have bad USB port if the keyboard
expected		doesn’t work at all, or a software issue if the
		keyboard is working but not as expected.
	4.	Ensure that all available Software Updates have
		been applied to the computer for access to the
		latest bug fixes.

Deep Dive

Check		Result	Action	Code
1.	Do any of the keys on the	Yes	Go to step 2
	keyboard work?
		No	Go to USB Port Doesn’t
			Recognize Devices symptom
2.	Is the Caps Lock working as	Yes	Go to step 3
	expected?
		No	Go to Keyboard: Specific keys
			do not respond symptom
3.	Is the media Eject key working	Yes	Go to step 4
	as expected?
		No	To prevent accidentally
			ejecting media, Mac OS X
			adds a slight delay to the
			Media Eject key before it
			takes effect. Go to step 5
4.	Open System Preferences >	Yes	The key combination to speak
	Speech. Is “Speak selected		text cannot be used for any
	text when the key is pressed”		other purpose. Either disable,
	enabled?		or change to a more rare
			key combination (including
			Shift, Command, Option and
			Control).
		No	Go to step 6	M15

2009-11-03 Mac mini (Late 2009) Symptom Charts — Input/Output Devices  71