Apple Technician Guide MacBook Pro (17-inch, Early 2009) - tim.id.au

2010-06-11
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. Can you see the trackpad
continuously listed on USB in
Apple System Profiler?
2. Does trackpad look damaged?
Verify trackpad alignment is
proper and click-depth set
screw is at factory setting.
3. Reseat the trackpad flex cable
to the logic board. Does
trackpad work now?
4. Is the trackpad connector on
the logic board damaged?
5. In System Preferences:
Universal Access, turn off
special Keyboard and Mouse
& Trackpad settings. Set for
normal use, enable and test
multiple touch features. Does
trackpad work now?
Yes Go to step 5.
No Go to step 2.
Yes Replace trackpad according
to symptom found.
- No mouse/trackpad
response
- Trackpad cursor not tracking
properly
- Trackpad button issues
Go to step 6.
No Go to step 3.
Yes Loose cable. Issue resolved.
No Go to step 4.
K02
K12
K13
Yes Replace logic board. M24
No Go to step 5.
Yes Settings issue resolved.
No Go to step 6
MacBook Pro (17-inch, Early 2009) Symptom Charts — Input/Output Devices 96