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

2010-08-05
6. Verify if all keys are functional
using ASD.
Yes Issue resolved.
Built-in Trackpad Does Not Track Properly
Unlikely cause: LCD, hard drive, optical drive
Quick Check
Symptom Quick Check
Built-in Trackpad Does Not Track
Properly
• Cursor movement is random,
uneven, or jumpy.
• Cursor hangs or stalls along
path.
Deep Dive
No Replace logic board. M15
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
off) using a clean, dry, lint free cloth.
3. Make sure all software and firmware updates have
been applied.
4. If the issue occurs when system is running from
power adapter, use a grounded power cord.
Check Result Action Code
1. In System Preferences:
Universal Access, turn off
special Keyboard and Mouse
& Trackpad settings. Verify if
trackpad works now.
2. Verify if you see the Apple
Internal Keyboard/Trackpad
continuously listed under USB
in Apple System Profiler.
3. Verify if the trackpad looks
damaged.
4. Reseat the trackpad flex cable
on the logic board. Verify if the
trackpad works now.
Yes Settings issue resolved.
No Go to step 2.
Yes Trackpad communicating to
system. Go to step 6
No Go to step 3
Yes Test with known-good
trackpad. Go to step 6.
No Go to step 4
Yes Loose cable. Issue resolved.
No Go to step 5
MacBook Pro (15-inch, Mid 2010) Symptom Charts — Input/Output Devices 94