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

2010-08-05
Built-in Trackpad Does Not Work
Quick Check
Symptom Quick Check
Built-in Trackpad Does Not Work
• Cursor does not move.
• Select button of trackpad
inoperable
• Multiple touch features
inoperable
Deep Dive
1. Check for environmental factors such as humidity,
hand lotion or jewelry. Check if user is touching
the trackpad simultaneously with both hands.
2. Clean the trackpad surface (with the computer
powered off) using a clean, dry, lint-free cloth.
3. Make sure all software and firmware updates have
been applied.
Check Result Action Code
1. In System Preferences:
Universal Access, turn off
special Keyboard and Mouse
& Trackpad settings. Set for
normal use, enable and test
multiple touch features. Verify
if trackpad works now.
2. Verify if you see the Apple
Internal Keyboard/Trackpad
continuously listed on USB in
Apple System Profiler.
3. Reseat the trackpad flex cable
to the logic board. Verify if
trackpad works now.
4. Verify if the trackpad
connector on the logic board is
damaged.
5. Does the cursor move correctly
when trackpad is used ? Clean
trackpad surface and verify
trackpad is moving cursor on
screen.
6. Does the trackpad button
click? Verify trackpad
alignment is proper and clickdepth
set screw is at factory
setting.
Yes Settings issue resolved.
No Go to step 2
Yes Go to step 5.
No Go to step 3.
Yes Loose cable. Issue resolved.
No Go to step 4.
Yes Replace logic board. M24
No Go to step 5.
Yes Go to step 6
No Test with known-good
trackpad. Go to step 7
Yes Test with known-good
trackpad. Go to step 7
No Go to step 7
MacBook Pro (15-inch, Mid 2010) Symptom Charts — Input/Output Devices 90