 Apple Technician Guide - tim.id.au

2010-08-05
2. Reset SMC and verify if Apple
Internal Keyboard/Trackpad is
now seen in the USB devices
list of Apple System Profiler.
3. Disconnect and verify that
keyboard flex cable is in good
condition (no delamination or
torn cable end, no missing or
cracked tracks).
4. Reseat cable and check that
flex cable end is fully inserted
and aligned with connector
on logic board, and that
connector lock is closed. Verify
that keyboard now functions
properly.
5. Verify that all keys are
functional using ASD.
Yes Go to step 3.
No Replace logic board. M15
Yes Go to step 4.
No Go to the “Built-In Trackpad
Does not Work” symptom
table.
Yes Issue resolved.
No Replace top case. Go to step 5. K11
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.
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
the power adapter, use a grounded power cord
with the power adapter.
MacBook Pro (15-inch, 2.53 GHz, Mid 2009) Symptom Charts — Input/Output Devices 101