 Apple Technician Guide MacBook Pro (15-inch, Mid ... - tim.id.au

2010-08-05
Built-in Keyboard Is Not Recognized
Unlikely cause: LCD, hard drive, optical drive
Quick Check
Symptom Quick Check
Built-in Keyboard Is Not
Recognized
• Keystrokes not recognized
Deep Dive
1. Reset SMC.
2. Press Caps Lock. If the Caps Lock light comes on
that indicates at least a partial connection to the
logic board.
3. In System Preferences: International: Input Menu,
enable Keyboard Viewer. Select Show Keyboard
Viewer from the Input Menu in the menu bar.
Test the keyboard.
Check Result Action Code
1. In Apple System Profiler do you
see “Apple Internal Keyboard/
Trackpad” listed under USB
hardware devices?
2. Reset SMC and verify if Apple
Internal Keyboard/Trackpad is
now seen in the USB devices
list of Apple System Profiler.
3. If built-in keyboard is not
recognized, verify if trackpad is
still functional
4. Disconnect and verify if
keyboard flex cable is in good
condition (no delamination or
torn cable end, no missing or
cracked tracks).
5. Reseat cable and check that
keyboard flex cable end is
fully inserted and aligned with
connector on logic board,
and that connector lock is
closed. Verify if keyboard now
functions properly.
Yes Go to step 3.
No Go to step 2.
Yes Go to step 3.
No Replace logic board. M15
Yes Go to step 4.
No Go to Built-In Trackpad Does
not Work” symptom table.
Yes Go to step 5.
No Replace top case. Go to step
6.
Yes Issue resolved.
No Replace top case. Go to step
6.
MacBook Pro (15-inch, Mid 2010) Symptom Charts — Input/Output Devices 93
K11
K11