Apple macbook 13 inch aluminum late 2008 User Manual

MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Input/Output Devices 101 2010-06-15
4. Does the Apple Remote now 
work?
YesIssue resolved.
NoReplace the hard drive front 
bracket (includes IR/sleep 
cable). Go to step 5.
5. Does the Apple Remote now 
work?
YesIssue resolved.K99
NoReplace logic board.M15
Built-in Speaker Has No Audio
Unlikely cause: LCD, hard drive, optical drive
Quick Check
SymptomQuick Check
Built-in Speaker Has No Audio
Can’t hear any audio from within 
the machine.
1. Make...

MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Input/Output Devices 102 2010-06-15
3. Verify that you now get audio 
through internal speakers .
YesIssue resolved.
NoReplace logic board.M09
4.  Disconnect known-good 
headphones or speakers. 
Verify that you now get audio 
through  internal speakers.
YesIssue resolved.
NoReplace affected speaker(s).X08
Distorted Sound from Internal Speaker
Unlikely cause: LCD, hard drive, optical drive
Quick Check
SymptomQuick Check
Distorted Sound from Internal...

MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Input/Output Devices 103 2010-06-15
2. Use the Sound Output system 
preference to test the left 
and right speakers. If lower 
bass notes are distorted, right 
speaker/subwoofer may be 
defective. Are all speakers free 
of distortion, sounding clear 
and loud?.
YesIssue resolved.
NoAdjust volume to test full 
range of volume settings. Go 
to step 3.
3. Is affected speaker cable 
properly inserted and free 
from damage?
YesGo to step 4.
NoReseat...

MacBook (13-inch, Aluminum, Late 2008) — Symptom Charts / Mechanical Issues: Thermals and Enclosure 1042008-09-18
Mechanical Issues: Thermals and Enclosure
Reset/Power Button Stuck
Unlikely cause:  LCD, hard drive, optical drive
Quick Check
SymptomQuick Check
Reset/Power Button Stuck
• System will not power on
• System sounds bootROM 
unlock tone during startup
• System automatically starts up 
repeatedly
1. Diagnose stuck button with SMC keyboard reset 
sequence
2.  Inspect keyboard connection to logic...

MacBook (13-inch, Aluminum, Late 2008) — Symptom Charts / Mechanical Issues: Thermals and Enclosure 1052008-09-18
3. Inspect keyboard flex cable for 
loose or damaged connections.   
Align and reseat to flex cable 
to ensure proper connections.  
Does power-on key now work 
correctly?
YesCable reseat restored power-
on key operation.
NoPower-on key still appears to 
be stuck or open.  Go to step 
4.
4.  Use conductive tool to assert 
power on by touching power-
on switch pads (R5015, located 
just above...

MacBook (13-inch, Aluminum, Late 2008) — Symptom Charts / Mechanical Issues: Thermals and Enclosure 1062008-09-18
Deep Dive
CheckResultActionCode
1. Is the system running as 
expected (compared to similar 
system)?
YesUse “Apple Portables: 
Operating Temperature” 
(Knowledge Base HT1778) 
to inform user it is operating 
normally.
NoGo to step 2.
2.  Are there runaway 
applications? See “Runaway 
applications can shorten 
battery run time” (Knowledge 
Base TS1473).
YesCheck with the vendor for...

MacBook (13-inch, Aluminum, Late 2008) — Symptom Charts / Mechanical Issues: Thermals and Enclosure 1072008-09-18
8. Inspect and reseat connections 
to thermal sensors throughout 
the system, run test for sensor 
monitoring.
YesThermal module or other 
sensor reseat resolved issue. 
X99
NoReplace logic board if sensor 
error.  Go to step 9.
9. After logic board replacement, 
is the computer running as 
expected?
YesBad logic board.  Issue 
resolved.
M23
NoUse minimum configuration 
troubleshooting to...

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 Apple Technician Guide  
Take Apart
MacBook (13-inch, Aluminum, Late 2008)   

MacBook (13-inch, Aluminum, Late 2008) Take Apart — General Information 109 2010-06-15
Vertical Insertion 
(JST )
• Use black stick under 
cable to remove.
• Keep connector 
level to board when 
disconnecting and 
reconnecting.
• Press evenly when 
reconnecting or 
connector can tip up 
and not be fully seated.
Examples:
• fan cable
• battery indicator 
light cable
• heatsink sensor
• left speaker cable
• microphone 
cable (underside) 
Locking Lever
• Flip up lever 90 
degrees for flex cable 
removal. 
•...

MacBook (13-inch, Aluminum, Late 2008) Take Apart — General Information 110 2010-06-15
• keyboard flex 
cable
Caution: Use black stick 
to push the keyboard flex 
cable all the way into 
connector to prevent “no 
power” symptoms. 
Horizontal Install
• Pull connector, not 
cable, to remove. 
• Slide connector into 
receptacle on same 
horizontal plane as 
board.
Examples:
• right speaker/
subwoofer cable
• MagSafe cable 
on underside of 
board
• battery power 
cable on 
underside of 
board
Multi-Pin...