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

2010-08-05
Power Adapter Issue
Unlikely cause: logic board, RAM, display assembly, hard drive, optical drive, top case, speakers,
camera, microphone
Quick Check
Symptom Quick Check
Power Adapter Issue
• No power
• No Power LED
• Non-operational
• Stuck /broken pin
Deep Dive
1. Connect AC adapters MagSafe connector to the
computer. The LED on the connector should be
green or amber.
2. Verify power cord, or plug, is firmly attached to
AC adapter.
3. Verify AC power source is supplying AC power.
4. Check for dirty or stuck pins on the MagSafe
connectors, both on the adapter and the
computer. Use and cleaning of power adapter
with MagSafe
5. Reset SMC by pressing the (left) Shift-Control-
Option keys along with the power button once.
Check Result Action Code
1. Verify if the MagSafe LED
is green or amber while
connecting a known-good AC
adapter on customer system.
2. Verfiy that the unit runs on
a known-good AC power
adapter only.
3. Verify the MagSafe LED
is green or amber while
connecting known-good
power adapter on customer
system.
Yes SMC on logic board senses AC
power adapter and enabled
power. Go to step 4.
No Verify MagSafe interconnect
board is connected to logic
board. Go to step 2
Yes Issued resolved. P99
No Replace the MagSafe
interconnect board. Go to
step 3.
Yes Bad MagSafe interconnect
board. Issue resolved.
No Go to step 4
X03
MacBook Pro (15-inch, Mid 2010) Symptom Charts — Startup and Power Issues 45