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

2010-06-11
Won’t Run on Power Adapter Alone
Unlikely cause: RAM, display assembly, hard drive, optical drive, top case, speakers, camera,
microphone
Quick Check
Symptom Quick Check
Won’t Run on Power Adapter
Alone
Runs on battery but not on power
adapter only.
Deep Dive
1. Verify proper wattage adapter is being used.
2. Check for dirty or stuck pins on the MagSafe
connectors, both on the adapter and the
computer.
3. Connect the AC adapter to known-good power
source.
4. Verify power cord or plug is properly attached to
AC adapter and MagSafe cable is not damaged.
Check Result Action Code
1. With battery removed, will a
known-good AC adapter start
up and run the system and
show MagSafe LED status?
2. Does a known-good power
adapter’s LED light up either
green or amber?
3. Does the unit run on knowngood
power adapter alone?
Yes Confirm user’s AC adapter as
bad and replace.
No Verify MagSafe board cable
seating to logic board. Go to
step 2
Yes SMC on logic board senses AC
power adapter. Go to step 3
No Replace the MagSafe board.
Go to step 3.
MacBook Pro (17-inch, Early 2009) Symptom Charts — Startup and Power Issues 50
P14
Yes Issued resolved. X03
No Replace logic board.. M01