Apple MC408LL Apple Technician Guide - Page 80

Keyboard: Specific Keys Do Not Respond, Wired Keyboard/Mouse Not Recognized, Symptoms, Quick Check

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Keyboard: Specific Keys Do Not Respond Quick Check Symptoms Keyboard: Specific Keys Do Not Respond • One or more keys do not respond when pressed • Key sticks • Keycap missing Quick Check 1. If wireless keyboard is being used verify that it is properly paired with the system. Go to 'Wireless Input Device Doesn't Pair' symptom flow to resolve pairing issues. 2. The caps lock key has a built-in delay to reduce accidental activation and must be held for approximately ½ second for it to be activated. Refer to http://support.apple.com/kb/TS1578 for additional information. 3. Inspect the keyboard for signs of liquid spills or other contamination. Apple's warranty does not cover accidental damage. 4. If the keycap is loose attempt to reattach it. 5. For other keyboard issues jump to the appropriate symptom flow. Wired Keyboard/Mouse Not Recognized Quick Check Symptoms Quick Check Wired Keyboard/Mouse Not Recognized • USB wired keyboard/mouse not recognized when plugged in. • Mouse scroll ball not working or not working as expected. • Mouse buttons not working or not working as expected. 1. The Mac mini has 4 USB ports on the rear of the computer. Make sure to try each port to isolate a particular port malfunction. 2. Test with a known good wired keyboard or mouse to isolate a failed peripheral issue. . 3. Ensure that all available Software Updates have been applied to the computer for access to the latest bug fixes. 2010-08-03 Mac mini (Mid 2010) Symptom Charts - Input/Output Devices 80

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Mac mini (Mid 2010) Symptom Charts — Input/Output Devices
80
2010-08-03
Keyboard: Specific Keys Do Not Respond
Quick Check
Symptoms
Quick Check
Keyboard: Specific Keys Do Not
Respond
•
One or more keys do not
respond when pressed
•
Key sticks
•
Keycap missing
1.
If wireless keyboard is being used verify that it is
properly paired with the system. Go to ‘Wireless
Input Device Doesn’t Pair’ symptom flow to
resolve pairing issues.
2.
The caps lock key has a built-in delay to reduce
accidental activation and must be held for
approximately ½ second for it to be activated.
Refer to
for additional information.
3.
Inspect the keyboard for signs of liquid spills or
other contamination. Apple’s warranty does not
cover accidental damage.
4.
If the keycap is loose attempt to reattach it.
5.
For other keyboard issues jump to the
appropriate symptom flow.
Wired Keyboard/Mouse Not Recognized
Quick Check
Symptoms
Quick Check
Wired Keyboard/Mouse Not
Recognized
•
USB wired keyboard/mouse not
recognized when plugged in.
•
Mouse scroll ball not working
or not working as expected.
•
Mouse buttons not working or
not working as expected.
1.
The Mac mini has 4 USB ports on the rear of the
computer. Make sure to try each port to isolate a
particular port malfunction.
2.
Test with a known good wired keyboard or
mouse to isolate a failed peripheral issue. .
3.
Ensure that all available Software Updates have
been applied to the computer for access to the
latest bug fixes.