Apple MacBook Pro 13 inch - Page 41

MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 41
2010-09-14
3. Power related shutdowns :
verify that shutdown issue
can ONLY be reproduced with
user’s battery and AC adapter.
Yes Intermittent power issue
means checking user’s
AC cable for intermittent
connection, checking user’s
battery & AC adapter health.
No Issue also happens with
known-good battery and AC
adapter. Go to step 4.
4. Reset SMC and PRAM, then
verify if shutdown symptoms
does not happen anymore.
Yes Shutdown cause was related
to SMC or Pram settings or
corruption, and was resolved
by reverting them to default
settings.
No Shutdown event still occurs.
Go to step 5.
5. Check system running on
battery only. Use known-good
charged battery.
Verify if shutdown/reset/sleep
issues disappear when known-
good battery is used without
AC adapter.
Yes Recharge user battery
and retest. Check for user
battery health in Apple
System Proler or run Apple
Notebook Battery & Adapter
utility, and replace battery if
its health is reported bad or
consumed.
P09
No Symptoms unchanged.
Go to step 6.
6. Check with known-good AC
adapter source only
Remove battery and use
known-good AC adapter.
Verify if the shutdown/reset/
sleep issues disappear with
known-good adapter.
Yes Faulty user’s AC adapter.
Replace user’s AC adapter if
AC cable and duckhead were
conrmed good.
P14
No Symptoms unchanged.
Go to step 7.
7. Hardware-related shutdowns:
Run ASD and verify if a sensor
failure is reported.
Yes -If a temperature or a fan
sensor failure is reported, go
to step 8
-If a voltage or a current
sensor failure is reported
in ASD w/known-good AC
adapter and batteries, replace
logic board.
M23
No Setup ASD to loop test suite
for burn in tests and go to
step 7. if no failure is found
after burn in tests, return unit
to user for no failure found.