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

2010-08-05
Symptom Charts
Follow the steps in the order indicated below. If an action resolves the issue, retest the system
to verify. Note: A compilation of Quick Check tables is available at http://service.info.apple.
com/QRS/en/quickreference.pdf.
Note: There is no silkscreen text on final production logic boards. The photos shown with test
points are from pre-production units and are solely for reference.
Startup and Power Issues
No Power
Unlikely cause: display assembly, speakers, optical drive, hard drive
Quick Check
Symptom Quick Check
No Power / Dead Unit
• No power
• No image
• No startup chime
• No fan or hard drive spin
• No reset sound from optical
drive
• No sleep LED activity
• No light if Caps Lock pressed
• Non-operational
Deep Dive
1. Verify AC power presence with MagSafe LED
indicating on or charge state.
2. Verify battery status as being partly charged,
charging with AC power.
3. Reset SMC.
4. Run Battery Diagnostic Utility.
Check Result Action Code
1. Isolate peripherals as cause.
Disconnect all peripherals and
external devices and verify unit
starts.
Yes Suspect peripherals as cause.
Reconnect each one at a time,
verifying unit operation as
external device is reinstalled.
No Go to step 2
MacBook Pro (15-inch, Mid 2010) Symptom Charts — Startup and Power Issues 25