Apple macbook pro 15 inch late 2008 User Manual

MacBook Pro (15-inch, Late 2008) Symptom Charts — Startup and Power Issues 31 2010-06-15
5. Inspect battery cable 
connection at logic board and 
reseat if necessary.  Replace 
cable if found damage or 
burned.  Can the system power 
on from a charged battery with 
battery cable inspections or 
replacement?
YesBattery power restored, return 
to test unit with customer 
battery and AC adapter 
power.    Go to step 6. 
NoLogic board is expected to 
power on with battery only.  
Inspect and test power on...

MacBook Pro (15-inch, Late 2008) Symptom Charts — Startup and Power Issues 32 2010-06-15
10. Test and inspect Top Case 
Power Button. 
Stuck or open power on key or 
keyboard disconnect can 
disable the power on of 
system. If button does not 
work, locate pads R5015 on 
logic board just to right of IR/
sleep cable. Short pads to 
power up logic board.  If power 
on key is stuck, keyboard cable 
must be disconnected for 
R5015 to work.  Does system 
power on?  (Reconnect 
keyboard cable to confirm bad...

MacBook Pro (15-inch, Late 2008) Symptom Charts — Startup and Power Issues 33 2010-06-15
Deep Dive
CheckResultActionCode
1. Reset SMC and Clear PRAM to 
set default startup device to 
internal hard disk drive (HDD).
YesUser hard drive bootable, 
issue resolved default 
settings.
NoCustomer system not starting 
up, go to step 2
2.  Is system indicating a memory 
error with repeated sleep LED 
1 or 3 flash sequence and beep 
tones if sound is enabled?
YesTroubleshoot memory issues, 
go to step 3
NoContinue...

MacBook Pro (15-inch, Late 2008) Symptom Charts — Startup and Power Issues 34 2010-06-15
7. Troubleshoot optical drive 
and optical drive cable with 
cable reseat and known-
good part substitutions.  Is 
there a defective optical drive 
component to replace? 
YesCable reseat solved issue. 
Continue to verify hard drive 
issues, go to step 8 
Defective optical drive cable 
found and replaced.  Continue 
to verify hard drive issues, go 
to step 8.
X03
Defective optical drive found 
and replaced. Continue...

MacBook Pro (15-inch, Late 2008) Symptom Charts — Startup and Power Issues 35 2010-06-15
11. Use Disk Utility to repair 
customer hard drive  and 
repair permissions if system OS 
found on hard drive.  Is hard 
drive bootable after software 
repairs?
YesOS on customer hard drive 
repaired, issue resolved. 
NoHard drive not bootable, 
perhaps missing OS, go to 
step 12
12.  Use Disk Utility to partition 
customer hard drive with one 
GUID partition then restore 
Mac OS from product OS install 
disc.  Is...

MacBook Pro (15-inch, Late 2008) Symptom Charts — Startup and Power Issues 36 2010-06-15
Shutdown 
Cause 
Number
CauseSuggested Fix
3
Forced shutdown: Normal behavior, 
if power button was pressed for 
more than 4 seconds.
If shutdown was unexpected, check 
top case (for power button stuck, or 
shorted cable).
5
Normal shutdown: Normal behavior 
if software initiated shutdown/
restart.
If shutdown was unexpected, check 
Energy Saver setting in System 
Preferences.
-2
Power supply disconnected: Normal...

MacBook Pro (15-inch, Late 2008) Symptom Charts — Startup and Power Issues 37 2010-06-15
Intermittent shutdown
• Powers off during startup
• Powers off with desktop use
1. Verify battery charge status
2.  Check AC adapter MagSafe connector and 
connection with system 
3. Reset SMC and PRAM
4.  Start up with shift key down for safe mode
5. Startup from known-good bootable device
6.  Check system.log info for shutdown cause
7. Run AHT /ASD for sensors + thermal test
Deep Dive
CheckResultActionCode
1....

MacBook Pro (15-inch, Late 2008) Symptom Charts — Startup and Power Issues 38 2010-06-15
3. Start up from product OS 
install disc or from an external 
hard drive with product Mac 
OS.  
Are shutdown symptoms and 
events gone while starting up 
from this known-good Mac 
OS?
YesShutdown events cease on 
known-good OS.  Reinstall 
Mac OS on customer hard 
drive and  update OS with 
latest version and check 
if bootROM updates are 
available.
 
 
 
 
NoSymptoms unchanged - go to 
step 4
4.  Check system...

MacBook Pro (15-inch, Late 2008) Symptom Charts — Startup and Power Issues 39 2010-06-15
7. Check if sleep event happens 
repeatedly in system.log 
If sleep/wake events are 
repeatedly reported, plug 
external monitor and run ASD 
to check for sleep sensor test. 
Verify if sleep sensor test is 
failing.
YesCheck for intermittently 
shorted sleep sensor in top 
case. If damaged, replace 
sensor/cable of top case. 
 
Check IR cable is properly 
seated 
 
Reseat and retest sleep sensor 
with ASD. If failing...

MacBook Pro (15-inch, Late 2008) Symptom Charts — Startup and Power Issues 40 2010-06-15
9. Isolate if issue solved 
Verify that shutdown/issue 
does not happen anymore 
after part exchange.
YesIssue fixed
NoReplace logic board with 
corresponding symptom: 
-if for thermal error cause 
-if for other cause
 
 
M18
M08
No Video/Bad Video
Unlikely cause: hard drive, optical drive, top case, battery, power adapter
Quick Check
SymptomQuick Check
Power, but No Video
• Power
• No video
• fan, hard drive spin,...