Page 1
Apple Technician Guide
MacBook Pro (13-inch)
MacBook Pro (13-inch, Mid 2009)
MacBook Pro (13-inch, Mid 2010)
Updated: 2010-09-14
Page 2
Apple Inc.
© 2010 Apple Inc. All rights reserved.
Under the copyright laws, this document may not be copied, in whole or in part, without the
written consent of Apple.
Every eort has been made to ensure that the information in this document is accurate. Apple
is not responsible for printing or clerical errors.
Apple
1 Innite Loop
Cupertino, CA 95014-2084
USA
+ 1 408 996 1010
www.apple.com
Apple, the Apple logo, Mac, MacBook, and Macintosh are trademarks of Apple Inc., registered in
the U.S. and other countries.
Page 3
MacBook Pro (13-inch)
Contents
About This Guide
Manual Updates 9
Updated 14 September 2010 9
Updated 16 August 2010 9
Updated 7 June 2010 9
Updated 14 May 2010 10
Updated 13 April 2010 10
Updated 15 January 2010 10
Updated 08 January 2010 10
Updated 21 December 2009 11
Updated 2 December 2009 11
Updated 2 September 2009 11
Updated 17 August 2009 11
Updated 22 July 2009 11
Updated 19 June 2009 12
Updated 10 June 2009 12
Apple Technician Guide introduced 08 June 2009 12
Feedback 13
Basics
Overview 15
Safety: Battery Precautions 16
Serial Number Location 17
Transferring the Serial Number 18
Keycap Replacement 19
Troubleshooting
General Troubleshooting 21
Update System Software & Firmware 21
Troubleshooting Theory 21
Hardware vs. Software 21
Temperature Concerns 21
Page 4
Functional Overview 22
Block Diagram, Mid 2009 23
Block Diagram, Mid 2010 24
Liquid Contact Indicators 25
Logic Board Power-On Pads, Mid 2009 26
Logic Board Power-On Pads, Mid 2010 27
Common Reset Procedures 28
Apple Service Diagnostic (ASD) 30
Clamshell Service Diagnostic (CSD) 30
LCD Display Pixel Anomalies 31
Display Hinge Behavior 32
Symptom Charts 33
Startup and Power Issues 33
No Power 33
Won’t Start Up 36
Intermittent Shutdown 38
No Video/Bad Video 43
Battery Isn’t Recognized or Won’t Charge 46
Kernel Panic/System Crashes 49
Battery Run Time Too Short 51
Won’t Run on Power Adapter Alone 52
Power Adapter Issue 53
Noise / Hum / Vibration 54
Burnt Smell / Odor 56
Battery Leaking or Swollen 57
Uncategorized Symptom 57
Display 58
Display Anomalies 58
Defective Camera / Built-in iSight Not Operating Correctly 62
Blank / No Video 63
Backlight Issue / No Backlight 64
Noise / Unstable Flickering 66
Mechanical/Physical Damage 67
Cosmetic Defects 67
Uncategorized Symptom 67
Mass Storage 68
Hard Drive Read/Write Issue 68
Hard Drive Not Recognized/Not Mounting 69
Hard Drive Noisy 71
Optical Drive Won’t Accept/Reject Media 72
Optical Drive Read/Write Data Error 74
Optical Drive Not Recognized/Mount 75
Optical Drive Noisy 76
Optical Drive Not Performing to Specs 78
SD (Secure Digital) Memory Card Will Not Insert Into Slot 79
Page 5
SD (Secure Digital) Memory Card Not Recognized By System 80
Uncategorized Symptom 81
Communications 82
Ethernet Port/Device Issue 82
AirPort/Bluetooth: Defective Wireless Devices 84
No/Poor Wireless Signal 86
AirPort Card: Kernel Panic 87
Wireless Performance Issue / Slow Connection 88
Wireless Input Device Loses Connection 89
Wireless Input Device Doesn’t Pair 91
Uncategorized Symptom 92
Input/Output Devices 93
USB Port Does Not Recognize Known Devices 93
FireWire Port Does Not Recognize Known Devices 94
Built-in Keyboard Does Not Work Properly 94
Specic Keys Don’t Work 96
Built-in Trackpad Does Not Work 96
Built-in Keyboard Has Dim or No Keyboard Backlight 98
Built-in Keyboard Is Not Recognized 99
Built-in Trackpad Does Not Track Properly 100
Apple Remote Inoperable 101
Built-in Speaker Has No Audio 102
Distorted Sound from Internal Speaker 103
Uncategorized Symptom 104
Mechanical Issues: Thermals and Enclosure 105
Reset/Power Button Stuck 105
System Runs Hot 106
Uncategorized Symptom 108
Take Apart
General Information 110
Connector Types on Logic Board 110
Tools 113
Icon Legend 114
Reassembly Steps 114
Note About Images in This Guide 114
Screw Sizes 114
Bottom Case 115
Battery 120
Removal 121
Reassembly 123
Page 6
Memory 124
Removal 125
Replacement 127
Rear Hard Drive Bracket 128
Hard Drive 130
Removal 131
Replacement 133
Reinstalling Software that Came with the Computer 134
Installing Mac OS X 134
Installing Applications 134
Front Hard Drive Bracket 135
Optical Drive 137
Optical Drive Flex Cable 140
Right Speaker / Subwoofer 142
Trackpad 145
Removal 146
Replacement 149
Camera Cable Guide 152
LVDS Cable Guide 156
Display Clamshell 158
Removal 159
Replacement 162
Display Hinge Behavior 165
Display Clutch Cover 166
Removal 167
Replacement 168
AirPort Card 169
Removal 170
Replacement 172
AirPort Antenna 173
Fan 175
Logic Board 177
Removal 178
Replacement 181
Page 7
Left Speaker 183
MagSafe Board 186
Heatsink 188
Removal 189
Replacement 190
Microphone Cable 192
Sleep Sensor / Battery Indicator Light (BIL) 194
Center Bracket 197
Top Case 199
Additional Procedures
Right Clutch EMI Gasket Removal 201
Views
Exploded Views 207
Main Assembly (Mid 2009), 1 of 2 207
Main Assembly (Mid 2009), 1 of 2 208
Display Assembly (Mid 2009) 209
Main Assembly (Mid 2010), 1 of 2 210
Main Assembly (Mid 2010), 2 of 2 211
Display Assembly (Mid 2010) 212
Screw Location Diagrams 213
Mid 2009: Bottom Case 213
Mid 2009: Main Modules 214
Mid 2009: Display Clamshell 215
Mid 2010: Bottom Case 216
Mid 2010: Optical Drive, Speaker, Fan 217
Mid 2010: Front Hard Drive Bracket 217
Mid 2010: Logic Board, MagSafe Board 218
Mid 2010: Battery 218
External Views 219
Front View 219
Slot View 220
Port View 220
Internal Views 221
Page 8
Apple Technician Guide
About This Guide
MacBook Pro (13-inch)
© 2010 Apple Inc. All rights reserved.
Page 9
Manual Updates
Updated 14 September 2010
Troubleshooting:
• General: Added new sections for Logic Board Power-On Pads (Mid 2009) and (Mid 2010)
• Symptom Charts: Startup and Power Issues: No Power and Mechanical: Reset/Power Button
Stuck: Linked to new Logic Board Power-On Pads sections
Updated 16 August 2010
Troubleshooting:
• General: Revised instructions for resetting SMC.
• Symptom Charts: Startup and Power Issues: No Power:
Revised Quick Check regarding Battery Diagnostic Utility;
Revised step 11 regarding power-on pads for MacBook Pro (13-inch, Mid 2009).
Take Apart:
• Logic Board and Left Speaker: Added instruction if transferring left speaker to a new logic
board, take care not to rip foam pads when removing speaker from old logic board.
Updated 7 June 2010
Troubleshooting:
• Symptom Charts: Communications: AirPort/Bluetooth: Defective Wireless Devices:
Revised order of steps and added instruction to cycle display clamshell open/closed when
testing and verifying AirPort issues.
Take Apart:
• Bottom Case, Camera Cable Guide, Display Clamshell: Added instruction to remove and
discard Right Clutch EMI Gasket during any repair of a MacBook Pro (13-inch, Mid 2010).
Additional Procedures:
• Added section for Right Clutch EMI Gasket Removal (applies to MacBook Pro (13-inch, Mid
2010) only).
Views:
• Added screw diagrams for MacBook Pro (13-inch, Mid 2010).
2010-09-14
MacBook Pro (13-inch) Basics — Manual Updates 9
Page 10
Updated 14 May 2010
Basics:
• Added section for keycap replacement parts & procedures.
Troubleshooting:
• Symptom Charts: Input/Output Devices: Built-in Keyboard Does Not Work Properly,
Symptom Charts: Input/Output Devices: Specic Keys Don’t Work:
Modied for keycap replacement procedures.
• Moved SD Card sections from Input/Output Devices to Mass Storage.
Take Apart:
• Camera Cable Guide, Display Assembly: Added warning about camera cable routing at
camera cable guide.
Updated 13 April 2010
Updated information throughout to add new model, MacBook Pro (13-inch, Mid 2010), and
corresponding new part numbers and diagnostics versions.
Troubleshooting:
• General: Updated Functional Overview & Block Diagram for MacBook Pro (13-inch, Mid 2010)
• General: Updated info about Liquid Contact Indicators (LCI).
• General: Updated info about Clamshell Service Diagnostic (CSD).
Take Apart:
• Optical Drive: Procedure rewritten; no longer requires removal of right speaker.
• Logic Board: New images to clarify cable routing of microphone cable and MagSafe board
cable on back side of logic board.
Views:
• Exploded Views: Updated part numbers for MacBook Pro (13-inch, Mid 2009); added new
model, MacBook Pro (13-inch, Mid 2010)
• Internal Views: Added new section.
Updated 15 January 2010
Take Apart:
• Battery: Added battery label reminder
Updated 08 January 2010
Take Apart:
• Bottom Case: Updated 3-mm long screws to 922-8972
Views:
• Screw Location Diagrams: Bottom Case: Updated 3-mm long screws to 922-8972
2010-09-14
MacBook Pro (13-inch) Basics — Manual Updates 10
Page 11
Updated 21 December 2009
Take Apart:
• General Information: Connector Types on Logic Board: Revised camera cable gasket
drawings
• Display Assembly: Revised camera cable gasket drawings
Troubleshooting:
• Symptom Charts: Startup and Power Issues: No Power: Added new step 10 in Deep Dive
table as a reminder to check camera cable gasket
Updated 2 December 2009
Troubleshooting:
• General Troubleshooting: Added new section “Clamshell Service Diagnostic Read Me”
• Symptom Charts: Startup and Power Issues: Revised for Clamshell Service Diagnostic (CSD)
considerations
• Symptom Charts: Communications: Revised for CSD considerations
• Symptom Charts: Display: Revised for CSD considerations
Updated 2 September 2009
Take Apart:
• Battery: Added battery screw part numbers to step 2
Views:
• Screw Location Diagrams: Main Modules: Added battery screw part numbers
Updated 17 August 2009
Troubleshooting:
• General Troubleshooting: Added section “Display Hinge Behavior”.
Take Apart:
• Battery: Updated wording about warning label. When same battery is installed, keep same
warning label attached to battery. (A new battery includes a new warning label.)
Updated 22 July 2009
Troubleshooting:
• General Troubleshooting: Replaced Troubleshooting Theory link with new reference.
Take Apart:
• Connector Types on Logic Board: Modied camera cable shim Cautions. If the camera cable
shim is not replaced during reassembly, the camera cable could work loose, resulting in a
short or no video. A replacement shim is now included with replacement logic boards.
• Tools: Removed at-blade screwdriver; added tri-lobe screwdriver part number
• Battery: Added tri-lobe screwdriver part number
2010-09-14
MacBook Pro (13-inch) Basics — Manual Updates 11
Page 12
• Hard Drive: Added step to remove two additional screws before removing hard drive.
• Optical Drive, Display Assembly, and Logic Board: Added link to Connector Types.
Updated 19 June 2009
Take Apart:
• Tools: Corrected part number for thermal grease.
Updated 10 June 2009
Troubleshooting:
• Built-in Trackpad Does Not Work: Modied Deep Dive table for trackpad replacement
• Built-in Trackpad Does Not Track Properly: Modied Deep Dive table for trackpad
replacement
Take Apart:
• Battery: Removal: Added “trackpad” to rst note
• Trackpad: Added new section following Battery for trackpad replacement instructions
Apple Technician Guide introduced 08 June 2009
2010-09-14
MacBook Pro (13-inch) Basics — Manual Updates 12
Page 13
Feedback
We want your feedback to help improve this and future Technician Guides!
Please email any comments to:
smfeedback6@apple.com
2010-09-14
MacBook Pro (13-inch) — Feedback 13
Page 14
Apple Technician Guide
Basics
MacBook Pro (13-inch)
© 2010 Apple Inc. All rights reserved.
Page 15
Overview
2010-09-14
The MacBook Pro (13-inch) features a higher-capacity, longer-lasting embedded battery, a highspeed FireWire 800 port, and an SD card slot for removable ash media.
The higher capacity battery must be serviced only by an Apple Authorized Service
Provider. The customer must not attempt to remove or service this battery, and doing so may
void their warranty.
Refer to the following site for available congurations of the MacBook Pro (13-inch, Mid 2009)
and MacBook Pro (13-inch, Mid 2010): http://support.apple.com/specs/
MacBook Pro (13-inch) Basics — Overview 15
Page 16
Safety: Battery Precautions
This computer contains an internal-only battery that is serviceable by Apple-authorized service
providers only. Tamper-proof screws are employed to prevent customers from attempting to
remove it.
WARNING: Every time you remove the bottom case, disconnect the battery cable from the
logic board.
WARNING: Because the battery is internal and connected to the logic board by a cable, it MUST
BE DISCONNECTED before performing service procedures. If you fail to do so, live current from
the battery will short circuit the components and render the logic board and/or LVDS cable
unusable.
2010-09-14
MacBook Pro (13-inch) Basics — Safety: Battery Precautions 16
Page 17
Serial Number Location
Turn over the computer to see the serial number etched on the bottom case near the hinge.
2010-09-14
MacBook Pro (13-inch) Basics — Serial Number Location 17
Page 18
Transferring the Serial Number
When replacing a bottom case, retain the customer’s bottom case until the repair is complete.
Before installing the replacement bottom case, use a ne tip permanent marker to write the
original serial number clearly and legibly in uppercase box letters directly onto the inside of the
new bottom case.
CAUTION: Take great care in deciphering the small typeface of the etched serial number
on the bottom case. You might need a magnifying glass to see it clearly. It is imperative
that you transfer the correct alphanumeric characters. Keep in mind that Apple serial
numbers always use the numbers 1 and 0 instead of the Roman letters “I” and “O.”
2010-09-14
MacBook Pro (13-inch) Basics — Serial Number Location 18
Page 19
Keycap Replacement
Service packages of 78 replacement keycaps are now available in the U.S. and Canada (U.S.
version keyboard only) for designated MacBook and MacBook Pro computers. The packages
allow you to replace individual keycaps rather than the entire top case.
There are four dierent keycap packages, based on the color of the key and the type of
keyboard (version D and S).
Part number Key color Keyboard
922-9277 Black Version D
922-9279 Black Version S
922-9278 White Version D
922-9280 White Version S
For step-by-step instructions, refer to:
kBase #HT4002: “MacBook/MacBook Pro: Black Keycap Replacement”
kBase #HT4003: “MacBook: White Keycap Replacement”
For an overview of the dierences among keycap procedures, refer to
kBase #HT4001: “MacBook/MacBook Pro: Keycap Replacement Matrix”
Note: You must be logged into GSX in order to view the articles above.
2010-09-14
MacBook Pro (13-inch) Basics — Keycap Replacement 19
Page 20
Apple Technician Guide
Troubleshooting
MacBook Pro (13-inch)
© 2010 Apple Inc. All rights reserved.
Page 21
General Troubleshooting
Update System Software & Firmware
Important: Ensure the correct version Mac OS X and latest software and rmware updates have
been applied before you begin troubleshooting. Computers sometimes exhibit symptoms that
indicate the wrong Mac OS X system software is installed.
Firmware is the name given to software that is written into memory circuits such as ash
memory, that will hold the software code indenitely, even when power is removed from the
hardware. Firmware on Intel Mac computers is designed to be updated if necessary by running
the Mac OS X Software Update check (available in the Apple () menu) while computer is
connected to the Internet. For more information about rmware updates, refer to:
kBase # HT1557: About rmware updates for Intel-based Macs
Troubleshooting Theory
For general information on troubleshooting theory, go to GSX and nd the Service Training
course menu link. From there you can access the Troubleshooting Theory self-paced course.
Hardware vs. Software
For information on how to isolate a hardware issue from a software issue, refer to:
kBase #TS1388: Isolating issues in Mac OS X
For information on how to troubleshoot a software issue, refer to:
kBase #HT1199: Mac OS X: How to troubleshoot a software issue
kBase #TS1394: Mac OS X: Troubleshooting installation and software updates
kBase #HT2956: Troubleshooting Mac OS X installation from CD or DVD
Temperature Concerns
The normal operating temperature of this computer is well within national and international
safety standards. Nevertheless, customers may be concerned about generated heat. To prevent
an unneeded repair, you can compare a customer’s computer to a similar running model, if
available, at your repair site. For more information, refer to
kBase #HT1778: Apple Portables: Operating temperature
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Update System Software & Firmware 21
Page 22
Functional Overview
Refer to this diagram for symptoms related to logic board connectors.
To rotate this page in Preview for easier viewing, go to Tools menu and choose “Rotate Left”.
Trackpad + Trackpad
Button + Trackpad Thermal
Sensor:
- no cursor movement,
- no click action
- unit running slow (missing
trackpad sensor input)
Keyboard
+ Power ON Button:
- no power on with
- dead keys
keyboard
Keyboard Backlight:
- no keyboard backlight
+ Infrared (IR) Sensor:
- no HDD visible in system
- no sleep led status
- no infrared reception
- no power on (if shorting
SMC)
- freezes or kernel panic
- video artifacts
profiler
Ram:
- no boot,
Sata Hard Drive
+ Sleep LED
bootable optical media
Sata Optical Drive:
- no Optical Drive seen in
- no startup possible from
System Profiler,
- no startup (if shorted Airport
light while ALS is covered
cable)
- failing to communicate with
- no keyboard backlight or
any of these devices
display not dimming in low
Right Clutch Camera
Cable, with connections to
AirPort, Bluetooth, Camera
and Ambient Light Sensor:
Right Speaker + Subwoofer:
- no sound from right speaker
- distorted right or center sound
or subwoofer
Battery:
- not running from battery only
- no power on (if incorrect power
- no battery seen in menubar
- fan running faster (high
adapter is used)
temperature from battery sensor)
- no battery level while
no battery level shown
- no sleep when
- no video on internal
when button pressed
clamshell closed,
display (sleep sensor
stuck)
Sensor:
charging
+ Magnetic Sleep
Battery Indicator LEDs
+ Battery Level button
- no input level from
Internal Microphone
sound input
Left Speaker
- no left sound,
- distorted left sound
Microphone
Connectors located on
the other side of the
logic board:
Fan :
- intermittent shutdown
- freezes
- fan running at full
speed
LCD + Backlight:
- no internal LCD video
- no internal LCD backlight
MagSafe Connector
(underneath logic
board):
- no Power ON
- no Battery charge
- no LED light from
MagSafe connector
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Functional Overview 22
Page 23
Block Diagram, Mid 2009
Refer to this diagram to see how modules are interrelated.
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Block Diagram, Mid 2009 23
Page 24
Block Diagram, Mid 2010
Refer to this diagram to see how modules are interrelated.
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Block Diagram, Mid 2010 24
Page 25
Liquid Contact Indicators
To help discover accidental damage to the computer, the top case includes spill sensors called
liquid contact indicators (LCI). The sensors are only visible when the bottom case and most of
the modules have been removed. Normally represented by small white dots, the LCIs turn red
when they have come in contact with liquid, such as an accidental spill.
MacBook Pro (13-inch, Mid 2010) has an extra LCI just below the trackpad set screw, which is not
present in the MacBook Pro (13-inch, Mid 2009).
For more information, refer to
kBase #HT3400: About liquid contact indicators (LCI) on portable and desktop computers
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Liquid Contact Indicators 25
Page 26
Logic Board Power-On Pads, Mid 2009
Note: See following page for location of pads in Mid 2010 model.
On the logic board of the MacBook Pro (13-inch, Mid 2009), there are two pads that can
be shorted to power on the system. These pads are located above the trackpad ex cable
connector and below the hard drive ex cable connector. The power-on pads are shiny, silver,
square, and larger than the other (mostly round) silver pads nearby.
Important: Only short these two pads and no other pads, or you may damage the logic board.
The tip of a T8 or T10 screwdriver is about the right size to touch these two pads, without
touching other nearby components.
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Logic Board Power-On Pads, Mid 2009 26
Page 27
Logic Board Power-On Pads, Mid 2010
Note: See previous page for location of pads in Mid 2009 model.
On the logic board of the MacBook Pro (13-inch, Mid 2010), there are two pads that can be
shorted to power on the system. These pads are located above the keyboard ex cable
connector and to the right of the trackpad ex cable connector. The power-on pads are shiny,
silver, square, and larger than most of the other silver pads nearby.
Important: Only short these two pads and no other pads, or you may damage the logic board.
The tip of a T8 or T10 screwdriver is about the right size to touch these two pads, without
touching other nearby components.
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Logic Board Power-On Pads, Mid 2010 27
Page 28
Common Reset Procedures
Resetting the System Management Controller (SMC)
The System Management Controller (SMC) is a chip on the logic board that controls all power
functions. If the computer is experiencing any power issue, such as not starting up, not
displaying video, sleep issues, or fan noise issues, resetting SMC may resolve it. To reset SMC:
1. If computer is on, turn it o by choosing Shut Down from the Apple () menu.
2. Connect power adapter to computer and to a working power source.
3. On built-in keyboard, press (left-side) Shift-Control-Option along with power button just
once. Important: Use Shift-Control-Option keys on left side of keyboard.
Note: When the LED on the MagSafe connector is orange/amber, resetting the SMC will
change it to green for a few seconds, indicating that SMC was correctly reset.
4. Wait 5 seconds and press power button to start computer. Note: If bottom case is removed,
you can alternately reset SMC by disconnecting both power adapter and main battery, and
holding down power button for 5 seconds.
For more information, refer to:
kBase #HT3964: Intel-based Macs: Resetting the System Management Controller (SMC)
Resetting Parameter RAM (PRAM)
PRAM stores certain system and device settings in a location that Mac OS X can access quickly.
Exactly which settings are stored in the computer’s PRAM varies depending on the type of
computer as well as the types of devices and drives connected. To reset PRAM:
1. If computer is on, turn it o by choosing Shut Down from Apple () menu.
2. Locate the following keys on the keyboard: Command, Option, P, and R. You will need to
hold these keys down simultaneously in Step 4.
Note: If keyboard does not have an Option key, use Alt key instead.
3. Press power button.
4. Immediately press and hold Command-Option-P-R keys.
Important: You must press this key combination before the gray screen appears.
5. Hold down keys until computer restarts, and you hear startup chime a second time.
6. Release keys.
For more information, refer to:
kBase #HT1242: Mac OS X: What’s stored in PRAM
kBase #HT1379: Resetting your Mac’s PRAM and NVRAM
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Common Reset Procedures 28
Page 29
Starting Up in Safe Mode
Starting up into Safe Mode does several things that can help resolve software or directory
issues that may exist on the startup volume. To start up in Safe Mode:
1. If computer is on, turn it o by choosing Shut Down from Apple () menu.
2. Press power button.
3. Immediately after you hear startup tone, press and hold Shift key.
Note: The Shift key should be held as soon as possible after startup tone but not before.
4. Release Shift key when you see the screen with a gray Apple and progress indicator (looks
like a spinning gear). Note that booting into Safe Mode will take longer than a normal
startup. During startup, the words ”Safe Boot” will appear on Mac OS X startup screen.
5. To leave Safe Mode, restart computer normally, without holding down any keys during
startup.
For more information, refer to:
kBase #HT1564: Mac OS X: What is Safe Boot, Safe Mode?
kBase #TS1884: Safe Boot takes longer than normal startup
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Common Reset Procedures 29
Page 30
Apple Service Diagnostic (ASD)
Run Apple Service Diagnostic to determine if any of the thermal sensors are malfunctioning.
When sensors fail, replace the corresponding part —logic board, battery, or top case. See chart
below for correlation between error code and part.
Name Location
TC0D Logic board
TC0P Logic board
Th1H Logic board
TN0D Logic board
Ts0P Trackpad ex cable
TB0T Battery
TB1T Battery
TB2T Battery
TB3T Battery
Clamshell Service Diagnostic (CSD)
Clamshell Service Diagnostic (CSD) is a diagnostic tool that checks Apple’s latest portable
computers for the presence of AirPort, Bluetooth, LCD and Ambient Light Sensor (ALS) to assist
you in quickly making a failure determination.
Troubleshooting benets of using CSD include:
• Quick way (less than 1 minute) to determine whether clamshell-related modules (AirPort,
Bluetooth, LCD and ALS) are electrically connected without taking apart the system.
• Results of CSD can help pinpoint if any clamshell cables may need to be reseated to logic
board.
• Diagnostic results can help isolate a video or wireless issue to either clamshell or logic
board, to avoid unnecessary replacements of these components.
In the MacBook Pro (13-inch), CSD checks for the presence of the computer’s:
• AirPort
• Bluetooth
• LCD
• Ambient Light Sensor (ALS)
CSD does not check for the presence of the computer’s:
• iSight camera
• externally connected hardware components (such as USB or FireWire devices)
CSD does not check for issues with the OS X or other software-related problems such as
application or extension conicts.
For more information, and to download CSD, refer to:
kBase #CP1100: Notebook Computer Clamshell Screening Process
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Apple Service Diagnostic (ASD) 30
Page 31
LCD Display Pixel Anomalies
When displaying a single color over the screen area, the LCD panel might show one or more
pixels that are not properly lit. To determine if the display has an acceptable number of pixel
anomalies, follow the steps below:
1. Set the display image to one of the following colors: all-white, all-red, all-green, all-blue, or
all-black display. Use the LCD Tester Diagnostic Utility to generate these patterns on the
screen.
2. Using a jeweler’s loupe, pocket microscope, or other magnifying device, identify and
count each pixel anomaly:
• Bright subpixel anomaly = subpixel that is always on
• Dark subpixel anomaly = subpixel that is always o
3. The number of acceptable pixel anomalies for MacBook Pro (13-inch) is:
Bright Up to 3
Dark Up to 5
Combination Up to 7
4. If the number of subpixel anomalies exceeds the acceptable number shown above, replace
the LCD assembly. Numbers outside the acceptable range would be:
Bright 4 or more
Dark 6 or more
Combination 8 or more
5. If the number of subpixel anomalies is acceptable, explain to the customer that the
pixel anomalies are within specications, and no repair is necessary.
Important: Do not release the specications to customers. Instead, inform them that a
certain number of subpixel anomalies are considered acceptable, and these factors apply to
all manufacturers using LCD technology—not just Apple products.
When speaking with customers, please use the following explanation:
Active-matrix LCD technology uses rows and columns of addressable locations (pixels)
that render text and images on screen. Each pixel location has three separate subpixels
(red, green, and blue) that allow the image to be rendered in full color. Each subpixel has a
corresponding transistor responsible for turning the subpixel on or o.
There are typically millions of these subpixels on an LCD display. For example, the LCD
panel used in the Apple Cinema HD display is made up of 2.3 million pixels and 6.9 million
red, green, and blue subpixels. Occasionally, a transistor does not work perfectly, which
may result in the aected subpixel being turned on (bright) or turned o (dark). With
the millions of subpixels on a display, it is quite possible to have a low number of faulty
transistors on an LCD. Therefore, a certain number of subpixel anomalies are considered
acceptable. Rejecting all but perfect LCD panels would signicantly increase the retail
price for products using LCD displays. These factors apply to all manufacturers using LCD
technology—not just Apple products.
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — LCD Display Pixel Anomalies 31
Page 32
Display Hinge Behavior
MacBook Pro models have a unique counterbalanced clutch system. The design provides a
smooth, uid feel when opening, closing, or positioning the display. The counterbalanced clutch
system was designed so that when the display is vertical with respect to the ground, it will
remain in place regardless of the angle of the base.
Moving display past vertical allows the hinges to release and the display to close. This is normal
behavior and no repair is necessary. For more information, and to watch a video of normal
hinge behavior, refer to kBase #HT3304: MacBook Pro: Display hinge behavior.
2010-09-14
MacBook Pro (13-inch) General Troubleshooting — Display Hinge Behavior 32
Page 33
Symptom Charts
Follow steps in the order indicated below. If an action resolves the issue, retest 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 nal 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
1. Verify AC power presence with MagSafe LED
indicating on or charge state.
2. Verify battery status as being at least partly
charged, and charging with AC power.
3. Reset SMC.
4. If any of the previous steps have restored power,
run Battery Diagnostic Utility.
Deep Dive
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.
2010-09-14
No Go to step 2.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 33
Page 34
2. Reset SMC and verify unit
starts. (Alternative hardware
SMC reset can be forced by
disconnecting for 1 minute
AC and battery to remove all
system power.) Can system
start up after SMC reset?
Yes Corrupt SMC state preventing
power on. Issue resolved with
SMC reset.
No Go to step 3.
3. Will system power up with
battery only? Check battery
level LED indicator for status
of battery charge or battery
use error. Inspect battery
connector for burn marks or
damaged pins if substituting a
known-good battery to verify
starting on battery.
4. User battery may be run down,
or not recognized.
Verify user battery in a knowngood system is recognized and
accepting a charge. Conrm
user battery is not consumed
nor defective.
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?
Yes System can start up from
known-good battery -- user
battery possibly at fault
or needs to be charged.
Continue to verify user
battery then AC adapter use
and battery charging.
Go to step 4.
No System will not power using
known-good battery only.
Go to step 5
Yes Battery is recognized,
charging and health is good.
Return to test unit with user
battery and AC adapter
power. Go to step 6.
No Replace user battery for
not charging (P10) or not
recognized (P11). User to
purchase a replacement
battery if consumed.
Yes Battery power restored, return
to test unit with user battery
and AC adapter power.
Go to step 6.
No Logic board is expected
to power on with battery
only. Inspect and test power
button. Go to step 10.
P11
P10 or
P11
2010-09-14
6. Inspect MagSafe power
adapter. Verify AC adapter is
correct wattage, compatible
with product and works on
known-good computer.
Yes Power adapter is good.
Go to step 7.
No Release stuck pin or replace
P14
adapter due to wire damage,
not working or burned pins.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 34
Page 35
7. Inspect MagSafe port on
computer for physical damage,
debris or metal fragments
attracted to magnetic
connector. Is MagSafe
connector clean and free from
defects?
Yes Go to step 8.
No Clean port assembly. Replace
MagSafe board if necessary.
X03
8. Verify adapter status LED
turns on green then orange
indicating power and battery
charge in progress.
A green LED can indicate a full
battery, removal of battery or
battery not recognized.
9. Verify power from adapter is
present on logic board.
Remove system battery, use
AC power only. Reseat or test
known-good MagSafe cable to
achieve power for logic board.
10. Verify that the conductive
foam gasket placed over the
camera cable connector does
not short any pins of the logic
board connector.
Yes System starts and has power.
MagSafe LED indicates power
is owing to logic board.
Verify user battery will also
charge. Review battery health
to ensure user satisfaction.
No AC power is down or battery
is not charging. Go to step 9.
Yes Logic board has power
adapter energy to start
system. MagSafe cable reseat
or replacement resolved issue.
If still no system power on
indications, go to step 10.
No AC adapter power not going
to logic board power supplies.
Replace logic board.
Yes Reseat foam gasket to
prevent any contact with
logic board connector pins.
No Go to step 11.
P11
X03
M21
2010-09-14
11. Test and inspect power button
on top case. Stuck or open
power button or keyboard
disconnect can disable power
on of system. Does system
power on?
If power button does not work,
locate Logic Board Power-On
Pads (for Mid 2009 or for Mid
2010). Short pads to power up
logic board. If power button is
stuck, keyboard cable might
need to be disconnected rst
before shorting pads.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 35
Yes Power button functional,
issue resolved.
Power button works when
keyboard cable is reseated.
Power button appears to
be stuck, had to remove
keyboard cable to power on.
Replace top case for stuck
power button.
No No logic board power on
when shorting power-on
pads. Replace logic board.
K05
M01
Page 36
Won’t Start Up
Unlikely cause: display assembly, speakers, fan, camera, microphone
Quick Check
Symptom Quick Check
Power but no startup
• No startup chime, some video
activity, Apple logo, spinning
gear
• Startup chime with possible
beep tones
• Fan, hard drive spin or optical
drive reset sound
• Sleep LED is on , blinking or
went out
• Caps Lock LED toggles when
pressed
1. Reset SMC.
2. Verify startup process passes initial memory
checks – no beep errors or ashing sleep LED
indicators. Display activity is starting up.
3. Clear PRAM. Verify starts up from user drive.
4. Connect known-good external bootable device
and press Option (alt) key during startup then
select external startup device to bring up system
for diagnostics.
5. Verify presence and status of user hard drive. Use
Disk Utility to repair drive and le permissions.
Deep Dive
Check Result Action Code
1. Reset SMC and PRAM to set
default startup device to
internal hard disk drive.
Yes User hard drive bootable,
issue resolved with default
settings.
No System not starting up.
Go to step 2.
2010-09-14
2. Is system indicating a memory
error with repeated sleep LED
1 or 3 ash sequence and beep
tones if sound is enabled?
3. Reseat user memory and/or
swap in known-good memory
to isolate bad memory and
replace defective parts.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 36
Yes Troubleshoot memory issues.
Go to step 3.
No Continue with startup
sequence verication.
Go to step 4.
Yes User memory defective and
replaced. Continue to verify
startup process. Go to step 4.
No Should known-good memory
fail in one or more slots,
replace logic board.
X02
M07
Page 37
4. Hold the Option (Alt) key
during startup and verify there
is a bootable hard drive shown
in Startup Manager. Choose
user hard drive. Does start up
from this drive work?
Yes System starting up from
user hard drive. Startup issue
resolved
No User hard drive not present
or does not start up from
this drive. Continue to nd
bootable device. Go to step 5.
5. Insert product OS install disc
in optical drive. Install disc
is bootable and should be
present in Startup Manager.
Can system start up from OS
install disc?
6. Boot from a known-good
bootable copy of product OS
on a USB drive or network
server to start up and verify
internal mass storage devices
are available using System
Proler and Disk Utility.
7. Troubleshoot optical drive
and optical drive cable with
cable reseat and knowngood part substitutions. Is
there a defective optical drive
component to replace?
Yes Starts up from optical drive
- user hard drive not yet
bootable, go to step 8.
No Computer has no internal
bootable devices. Test
external startup devices.
Go to step 6.
Yes System started up from
external device and reports
data regarding internal SATA
devices. Go to step 7.
No No startup devices available.
Replace logic board.
Yes Cable reseat solved issue.
Go to step 8.
Defective optical drive cable
found and replaced.
Go to step 8.
Defective optical drive found
and replaced. Go to step 8.
M02
X03
J03
2010-09-14
8. Use Disk Utility loaded from
OS install disc to verify if hard
drive is available on device list.
Is user hard drive listed in Disk
Utility?
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 37
No Replace logic board. M19
Yes User hard drive available for
inspections and repair.
Go to step 10.
No Hard drive not present,
troubleshoot hard drive and
cable. Go to step 9.
Page 38
9. Troubleshoot hard drive and
hard drive SATA cable with
cable reseat and known-good
part substitutions. If user hard
drive, is there a defective hard
drive component to replace?
Yes Reseat of SATA cable now has
user hard drive visible in Disk
Utility, go to step 10.
Defective hard drive SATA
cable found and replaced,
now has user hard drive
visible in Disk Utility, go to
step 10.
Suspect user hard drive
defective, attempt OS restore,
go to step 10.
X03
10. Boot system with Shift key
down. Does it work?
11. Use Disk Utility to repair
user hard drive and repair
permissions if system OS
found on hard drive. Is hard
drive bootable after software
repairs?
12. Use Disk Utility to partition
user hard drive with one GUID
partition then restore Mac OS
from OS install disc. Is hard
drive bootable after OS install?
No Known-good hard drive and
known-good SATA cable used,
still no hard drive present.
Replace logic board.
Yes Go to software
troubleshooting article.
No Go to step 11.
Yes OS on user hard drive
repaired, issue resolved.
No Hard drive not bootable,
perhaps missing OS, go to
step 12.
Yes User hard drive now starts
up from new OS image, issue
resolved.
No Replace hard drive. H02
M19
2010-09-14
Intermittent Shutdown
Unlikely cause: hard drive, optical drive
Troubleshooting Shutdown Causes
Always run the available Apple diagnostics to check for cause of the previous shutdown(s).
Running ASD would also permit to isolate any abnormal value reading from a thermal, a
voltage, or a current sensor, or from a fan speed meter.
Collect all available info from user on shut down occurrence details: periodicity, power state
when issue happens, running applications, running time before shutdown.
Shutdown events could be categorized between four dierent types of causes.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 38
Page 39
1. User-related shut downs
A computer shut down event may be caused by user operation. Shuttting down the computer
(by selecting the Shutdown menu, by keeping pressed the power button for at least 4 seconds,
or by programming a timed shutdown in the Energy Saver preferences) should not be
considered as a failure unless the power button or the magnetic sleep sensors are found to be
defective, so the suggested steps for troubleshooting will be:
• to reset the SMC,
• to check Energy Saver preferences settings,
• to test top case button and magnetic sleep sensor operation and secure connection to logic
board.
2. Activity-related system shut downs
• system could not succeed the standard shutdown process and had to force shutdown,
• an installed watchdog detected that an application did not respond within specied time
(this watchdog can be enabled on Mac O X Server Energy Saver preferences)
These shut downs may be linked to system settings, devices drivers, applications or operating
system freezes, so the suggested steps for troubleshooting will be:
• to check the system logs and activity monitor utility for clues on the freezing process,
• to check for available software and rmware updates for installed device drivers,
applications, or operating system,
• to start the system from a known-good and up-to-date bootable drive for issue
reproduction.
3. Power-related system shut downs
• External or battery power source was removed,
• Battery went empty while computer was on,
• Battery went empty while computer was asleep,
These shut downs are due to power management, poor connections or defective power
sources so the suggested steps for troubleshooting will be:
• to reset SMC,
• to check secure AC cable, AC adapter and battery connections to logic board,
• to verify the battery and power adapter sources using the Notebook Battery and Adapter
Diagnostic.
4. Hardware-related system shut downs
• one of the temperature sensors reached a specied temperature limit,
• one of the voltage sensors reached a specied voltage limit,
• one of the current sensors reached a specied current limit,
These shut downs are due to temperature, voltage, current, fan speed or other hardware-related
sensor values getting out of range, so the suggested steps for troubleshooting will be:
• to check for all sensors connections and values using the Apple Service diagnostics and
other available Apple Service utilities,
• to check for usage of Apple branded battery and power adapter,
• to check for abnormal battery temperature,
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 39
Page 40
• to check for fan(s) operation,
• to check for cleanliness of the heat sink ns and the air ows,
• to check for correct seating of the heat sink on logic board and presence of thermal transfer
material.
Quick Check
Symptom Quick Check
Intermittent shutdown
• Powers o during startup
• Powers o with desktop use
1. Collect details from user on shutdown occurrence
and system conguration when it happens (on
battery, when running for a while, frequency
of shutdowns, running applications, shutdown
repeatability). If shutdown can be easily
reproduced, check next steps:
2. Verify battery charge status
3. Check AC adapter MagSafe connector and
connection with system
4. Reset SMC and PRAM
5. Start up with shift key down for safe mode
6. Startup from known-good bootable device
7. Run ASD for sensors + thermal tests
Deep Dive
Check Result Action Code
1. Activity related shutdowns:
Reset SMC and PRAM and
verify that shutdown issue still
happens.
Yes Check with known-good
bootable drive. Go to step 2.
No Shutdown cause was related
to SMC or PRAM programmed
shutdown settings or
corruption, and was resolved
by reverting them to default
settings.
2010-09-14
2. Booting from known-good
bootable drive, verify that
shutdown issue still happens.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 40
Yes Go to power-related
shutdowns on step 3.
No Shutdown events do not
happen on known-good OS.
Reinstall Mac OS on user
hard drive, update OS with
latest version and check if any
rmware update is available.
Page 41
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.
5. Check system running on
battery only. Use known-good
charged battery.
Verify if shutdown/reset/sleep
issues disappear when knowngood battery is used without
AC adapter.
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 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.
Yes Recharge user battery
and retest. Check for user
battery health in Apple
System Proler or run Apple
Notebook Battery & Adapter
utility, and replace battery if
its health is reported bad or
consumed.
No Symptoms unchanged.
Go to step 6.
Yes Faulty user’s AC adapter.
Replace user’s AC adapter if
AC cable and duckhead were
conrmed good.
No Symptoms unchanged.
Go to step 7.
P09
P14
2010-09-14
7. Hardware-related shutdowns:
Run ASD and verify if a sensor
failure is reported.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 41
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.
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.
M23
Page 42
8. Verify if a thermal sensor or fan
failure is reported in ASD.
Yes -If fan not running failure,
check for fan cable seating
and retest. If same failure
after retest replace fan with
known-good fan and retest.
If issue does not happen with
known-good fan, replace
user’s fan.
-If an over temp failure
reported, check for cause of
over temp, like obstructed
vent, dust in heatsink n,
clogged fan and retest. If still
failing replace part where
sensor is located (logic
board, battery, or trackpad)
according to the sensor
location table . Go to step 9.
X22
M23
P17
K99
9. Isolate if issue solved
Verify if shutdown/issue does
not happen anymore after part
exchange.
No Replace heatsink.
Go to step 9.
Yes Issue resolved.
No Replace logic board with
corresponding symptom:
-if for thermal error cause
-if for other cause
X10
M18
M08
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 42
Page 43
No Video/Bad Video
Unlikely cause: hard drive, optical drive, top case, battery, power adapter
Quick Check
Symptom Quick Check
Power, but No Video
• Power
• No video
• fan, hard drive spin, or optical
drive reset sound
• sleep LED is on or went on
• light if Caps Lock pressed
1. Reset SMC.
2. Reset PRAM.
3. If no startup chime, verify with known-good
memory.
4. Verify with external monitor.
5. Press Option key on startup.
Deep Dive
Check Result Action Code
1. Characterize video issue
Dene whether the issue is a
bad image with backlight OR
no video issue. Verify whether
some image even distorted is
visible.
2. Isolate peripherals as cause:
disconnect all peripherals,
external devices, Express
Card and display adapters if
present and verify that video is
displayed.
Yes Bad image quality,
go to step 5.
No No image seen or no
backlight, go to step 2.
Yes Suspect peripherals as cause.
Reconnect one at a time,
verifying unit operation at
each stage.
No Go to step 3.
2010-09-14
3. Adjust Brightness
Power-on unit , attempt to
adjust brightness to maximum
using brightness (F1/F2)
keys and verify that video is
displayed.
4. Reset SMC and verify that
system video is displayed.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 43
Yes Video displayed - Brightness
set to minimum, panel
backlight was inadvertently
turned o. If backlight returns
to low check for stuck F1 key
on keyboard.
No Go to step 4.
Yes Corrupt SMC state preventing
video.
No Go to step 5.
Page 44
5. Reset PRAM. If no action, use
external keyboard with same
sequence. Verify that system
video is displayed.
Yes Invalid or corrupt PRAM
contents aecting video
output.
No Go to step 6.
6. Connect external video:
Connect known-good VGA/
DVI adapter to known-good
display, press power button
and close display to force main
screen startup on external
video. Verify that video is
correct when displayed from
external display.
7. Isolate LCD display detection:
Disconnect external monitor
and reopen display and restart
unit. Verify that sleep LED
indicator goes o after internal
LCD has been detected.
Yes Video correct on external
display. Research available
rmware and software
updates, retest.
If returning with software
already updated, go to step 7.
No
Replace logic board with
according symptom code:
-no video
-bad/distorted video
Yes Sleep LED goes o when LCD
detected.
-If still no video then Go to
step 8,
-If video present, but with
defect, go to step 9.
No Internal LCD not detected.
Run Clamshell Service
Diagnostic utility and check
for LCD panel presence. If
not found, reseat LVDS cable
connection on logic board
and retest. If sleep LED does
not go o after cable is
reseated, go to step 10.
M03
M04
2010-09-14
8. Check for sleep sensor
condition. If display assembly
sleep sensor is stuck in a
closed state, video will appear
on internal display temporarily,
until the OS sleeps the system.
Disconnect BIL/ sleep cable
and restart unit without
external display. Verify that
system starts up with video on
internal display stays on and
does not go into sleep mode.
Yes Sleep sensor was stuck or had
shorted cable. Replace BIL/
X13
sleep sensor cable.
No Symptoms unchanged.
Go to step 9.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 44
Page 45
9. Check for No Backlight. Power
on unit. Using a lamp or bright
light source, verify that a faint
image or Apple logo appears.
Yes Logo image visible - check
LVDS cable. Inspect cables for
damage near clutches:
- if damaged, replace display
assembly and go to step 11
- if cable is not damaged, run
Clamshell Service Diagnostic
utility and check for LCD
panel presence. If not found,
reseat cable and retest, then
go to step 11.
No If symptom continues,
go to step 10.
L09
10. Verify with Known good
display assembly
Connect known-good display
assembly to system.
11. Verify with reseated LVDS cable
or replaced display assembly
Verify that unit now has video
and backlight.
Yes System is functioning with
known-good display assembly
Replace display assembly if
following symptom reporting:
- had no power issue
- had incorrect/missing colors
- had blank video
- had distorted / blurred video
- had vertical/horizontal lines
- had noise/unstable ickering
- had dim backlight
- had bad spot(s)/pixels
- had no backlight
- could not change resolution
No Symptoms unchanged -
replace logic board.
Yes Issue was only due to
damaged display assembly or
unseated cable.
No Display cable damaged the
logic board. Replace logic
board.
L01
L02
L03
L04
L05
L06
L07
L08
L09
L10
M03
M25
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 45
Page 46
Battery Isn’t Recognized or Won’t Charge
Unlikely cause: display assembly, speakers, optical drive, hard drive, trackpad
Quick Check
Symptom Quick Check
Battery isn’t recognized or won’t
charge
• AC adapter
• No MagSafe LED indicator
• No orange charge indication
• Battery status LEDs:
- single chase
- all ash
- no LED
1. Check battery level and test AC power.
2. Reset SMC by pressing the (left) Shift-Control-
Option keys along with the power button once.
3. Test system, using Battery Diagnostic Utility.
Deep Dive
Check Result Action Code
1. Does the MagSafe LED go
green to orange/amber when
connected to the system?
Yes Battery is recognized and
charging. Go to step 6.
No LED is green, Battery may be
full or not recognized.
Go to step 2.
LED was on momentarily then
went out. Go to No Power
symptom table.
2010-09-14
2. When the Battery status
button is pressed, did any of
the lights come on?
3. Does battery status indicate
a fully charge battery with all
LEDs on?
4. Does battery status indicate
the battery is not recognized
with a single LED on that
chases back and forth 5 times?
5. Does battery status indicate
the battery is recognized but
not charging with all LEDs
blinking?
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 46
Yes Go to step 3.
No Go to step 11.
Yes User battery charged, check
health. Go to step 13.
No Go to step 4.
Yes Go to step 8 and tag battery
as a possible P11 candidate.
No Go to step 5.
Yes Go to step 8 and tag battery
as a possible P10 candidate.
No Go to step 6.
(P11)
(P10)
Page 47
6. Does battery status indicate
battery charge and ash the
next level 5 times?
Yes User battery charging, check
battery condition.
Go to step 13.
No Flashing rst LED only,
go to step 7.
No battery status LEDs on,
go to step 11.
7. Does battery status indicate a
low battery with a LED ashing
rapidly indicating initial
charging of battery?
8. Test with a known-good
battery. Is battery recognized
and charging?
9. Inspect user battery contacts
and battery cable connector
for corrosion or obstructions.
10. Reseat battery harness at logic
board connector, and retest.
Is battery recognized and
charging?
11. Battery status LEDs not
working - inspect button stuck
or cable disconnect at logic
board and reset SMC.
Yes Allow user battery to charge
to 1 LED on before checking
battery condition. Go to step
13.
No Go to step 8
Yes Replace user battery (P10
not charging or P11 not
P10 or
P11
recognized).
No Go to step 9.
Yes Clear obstructions or replace
X03
the battery if cable is
corroded and recheck.
No Go to step 10.
Yes Issue resolved by cable reseat.
Check battery condition,
go to step 13.
No Replace logic board. M20
Yes LED status now working.
Go to step 3.
No Go to step 12.
2010-09-14
12. Remove system battery and
connect and test a knowngood battery status indicator
assembly. Do LEDs indicate a
battery not recognized chase
pattern?
13. Launch System Proler and
look in the Power section. Is
the battery over 300 cycle
counts?
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 47
Yes Replace user battery LED
X03
indicator assembly.
Go to step 3.
No Replace logic board. M20
Yes Battery has been consumed,
and user will need to
purchase a replacement.
No Go to step 14.
Page 48
14. Is battery still covered by
warranty?
Yes Go to step 16.
No Battery warranty expired,
go to step 15.
15. Considering the age of the
battery greater than one year
old, is the health of the battery
“Good” according to system
proler?
16. For batteries still covered by
warranty, is the health of the
battery “Good?”
17. With battery charge greater
than 20% does battery support
system operation without AC
connected?
18. Test with a known-good
battery. Does known-good
battery support battery only
operation?
Yes Battery is in good health
and out of 1-year warranty
coverage. Battery should
continue to function until
consumed.
No Battery is consumed after
warranty coverage. User to
purchase a new battery.
Yes Battery functioning normal.
Go to step 17.
No Battery has premature
P08
capacity loss. Replace user
battery.
Yes User battery is good.
No Go to step 18.
Yes Replace user battery for will
P12
not run system on battery
alone.
No Replace logic board. M20
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 48
Page 49
Kernel Panic/System Crashes
Unlikely cause: Battery, Power Adapter
Quick Check
Symptom Quick Check
Memory Issues/Kernel panic and
freezes
• Display notice of system kernel
panic during start up and
desktop use.
• System freeze during use.
• System freeze upon wake from
sleep.
1. Reset SMC and clear PRAM.
2. Remove suspect external devices.
3. Verify user memory is Apple-approved memory,
and memory conguration matches memory
installed.
4. Start up with shift key down for safe mode.
5. Startup from known-good bootable device.
6. Check panic.log info for crash cause.
7. Run AHT for sensors test.
Deep Dive
Check Result Action Code
1. Isolate Peripherals as cause.
Disconnect all peripherals,
external devices, and display
adapters if present
Yes Suspect peripherals as cause.
Reconnect one at a time,
verifying unit operation at
each stage.
No Go to step 2.
2010-09-14
2. Reset SMC and clear PRAM
then verify that unit starts
without panic issues.
3. Boot in Safe Mode with Shift
key down, and check for recent
kernel panic data in panic log.
Open Panic.log le on hard
drive and check for aected
interface that crashed. If unit
still crashes during startup, you
will need to take out disk to
a good system to access the
le. Verify that kernel panic
dependency is not with an I/O
interface.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 49
Yes Issue resolved with default
startup settings.
No Go to step 3.
Yes Kernel Panic is not a system
I/O related device. Go to step
5.
No I/O device related crash,
go to step 4.
Page 50
4. Remove I/O device where
possible to pinpoint faulty
device:
- Disconnect camera cable
from display assembly (for
AirPort, Bluetooth, camera, and
ambient light sensor). Camera
cable can be disconnected
without aecting startup and
test.
- optical drive cable to isolate
optical drive.
- hard drive cable to isolate
hard drive.
Memory cards can be removed,
relocated, or tested with
known-good memory. Because
system will run on one card,
this is a useful test for nding
bad memory or bad memory
slot.
If issue remains after testing
I/O device, replace with knowngood part(s) to conrm issue
resolved.
Yes System starts up when I/O
device removed, replace
aected I/O device or module
containing it.
If AirPort card presence is
crashing system, replace
AirPort card. If still issue,
replace display assembly (for
Bluetooth, camera, or cable
damage).
If optical drive presence is
crashing system, replace
optical drive cable and retest.
If issue remains try with
known-good optical drive.
If still issue, replace optical
drive.
If hard drive presence is
crashing system, replace hard
drive cable and retest. If issue
remains, try with known-good
hard drive. If still issue, replace
hard drive.
Reseat memory or replace
suspect memory with knowngood memory.
N13
L14
X03
J03
X03
H01
X01
5. Start up from optical drive or
known-good OS.
Attempt to start up with
original or product OS install
disc, or from an external hard
drive with product OS installed,
and verify that system starts
without kernal panic.
6. Disconnect display assembly
and test with known-good
display assembly. Verify that
system now starts up without
kernel panic/freeze.
No Symptoms unchanged, go to
step 5.
Yes Kernel panics cease running
alternate OS. Run ASD/
H03
DiskUtility to repair and test
hard drive. If repair attempts
fail, repartition hard drive
and reinstall OS. Replace hard
drive if restore fails.
No Symptoms unchanged, go to
step 6.
Yes Replace display assembly. L14
No Go to step 7.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 50
Page 51
7. Check for thermal values and
fan running speed
Run ASD to check for fan
and sensors test, and verify
that ASD does not report any
overtemp, failing sensor, or fan.
Yes No thermal fail detected -
Replace logic board with
matching symptom:
- If hang or freeze
- If Kernel Panic/system
crashes
M05
M06
No If sensor test failed, reseat
Battery Run Time Too Short
Quick Check
Symptom Quick Check
Battery Run Time Too Short
• Battery runs out of power very
quickly (less than two hours)
1. Check if the battery is covered under a repair
extension program. Refer to kBase #CP165:
“SERVICE: Notebook Computer Battery and
Adapter Screening Process”
sensor connections on logic
board and retest. If still failing,
replace sensor or part where
it is located (top case, display,
other) :
If top case sensor failed
If display sensor failed
If logic board sensor failed
If fan test failed, replace fan.
If overtemp , replace heatsink.
X99
L14
M18
X03
X10
2010-09-14
2. Verify no applications have runaway processes
with the CPU. Refer to kBase #TS1473:” Runaway
applications can shorten battery runtime”
3. Screen for short battery run time using kBase
#HT1446: “Apple Portables: Tips for maximizing
your battery charge”. If replaced for run time
too short, regardless of warranty coverage, use
symptom code P09 if replaced.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 51
Page 52
Won’t Run on Power Adapter Alone
Unlikely cause: RAM, display assembly, hard drive, optical drive, top case, speakers, camera,
microphone
Quick Check
Symptom Quick Check
Won’t Run on Power Adapter
Alone
• Runs on battery but not on
power adapter only.
1. Verify proper wattage adapter is being used.
2. Check for dirty or stuck pins on the MagSafe
connectors, both on the adapter and the
computer.
3. Connect the AC adapter to known-good power
source.
4. Verify power cord or plug is properly attached to
AC adapter and MagSafe cable is not damaged.
5. Reset SMC by pressing the (left) Shift-ControlOption keys along with the power button once.
Deep Dive
Check Result Action Code
1. With battery removed, will a
known-good AC adapter start
up and run the system and
show MagSafe LED status?
Yes Conrm user’s AC adapter as
bad and replace.
No Verify MagSafe board cable
seating to logic board.
Go to step 2.
P14
2010-09-14
2. Does a known-good power
adapter’s LED light up either
green or orange/amber?
3. Does the unit run on knowngood power adapter alone?
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 52
Yes SMC on logic board senses AC
power adapter. Go to step 3
No Replace the MagSafe board.
Go to step 3.
Yes Issued resolved. X03
No Replace logic board. M01
Page 53
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
1. Connect AC adapters MagSafe connector to the
computer. The LED on the connector should be
green or orange/amber.
2. Verify power cord, or plug, is rmly 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-ControlOption keys along with the power button once.
Deep Dive
Check Result Action Code
1. Verify that the MagSafe LED is
green or orange/amber while
connecting a known-good AC
adapter on user 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.
2010-09-14
2. Does the unit run on knowngood AC power adapter only?
3. Verify the MagSafe LED is
green or orange/amber while
connecting known-good
power adapter on user system.
4. Does the user’s power adapter
have stuck or bent pins on the
MagSafe connector?
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 53
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.
Yes Replace power adapter. P15
No Go to step 5.
X03
Page 54
5. Does the cable or duckhead
have visible damage?
Yes Replace cable or duckhead. P16
No Go to step 6.
6. Check that LED on MagSafe
connector is displaying both
green (if battery charged) and
orange (when charging).
Yes Verify adapter with known-
good unit and user unit and
troubleshoot source of error.
No Replace power adapter. P03
Noise / Hum / Vibration
Unlikely cause: RAM, display assembly, top case, camera, microphone, battery
Quick Check
Symptom Quick Check
Noise / Hum / Vibration
• Computer or AC adapter emits
a noise or vibration.
1. Verify and reproduce the source of the noise from
the computer / adapter with the user.
2. If the AC adapter is the source of the noise
disconnect and try a known-good adapter (a
small amount of hum or vibration is normal with
AC adapters).
Deep Dive
Check Result Action Code
1. Use of a known-good AC
adapter eliminates the noise/
vibration.
2. Verify if the noise is heard
through the speakers and / or
headphones.
3. Disconnect any peripheral
devices, cards, or cables
attached to the unit. Verify the
noise is gone.
Yes Replace AC adapter. P04
No Go to step 2.
Yes Go to step 3.
No Go to step 4.
Yes Check for possible ground
loop.
No Go to step 6.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 54
Page 55
4. Locate the source of the noise.
Is the noise from an optical
drive?
Yes Check with a dierent media
disc. Possible issue with disc
label or out of balance media.
If not related to media, and
noise is above normal level,
replace optical drive.
No Go to step 5.
J04
5. Is the noise from the hard
drive?
6. Is the noise coming from the
fan?
7. Noise maybe related to
interference from other
electrical devices operating
near the computer, or on the
same AC power source. Verify if
noise is gone when operating
in a dierent location on a
dierent AC circuit.
Yes It is normal for drives to
H06
produce noise when they
spin up or the heads move.
Replace drive if noise is above
normal levels.
No Go to step 6.
Yes The fan(s) are generally
running in a slow mode,
but may accelerated when
intensive processing is
required (calculation, 3D
gaming, or screen saver
X03
animation). If still beyond
expected sound level, check
for interference of fan with
other mechanical element of
system (foam, bracket, shield)
before replacing a noisy fan.
No Go to step 7. P04
Yes Perhaps operating the unit
with a surge suppressor will
eliminate or reduce the noise.
Change location of use or
limit use of other device that
is inducing the noise.
No Replace logic board. M99
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 55
Page 56
Burnt Smell / Odor
Unlikely cause: enclosure
Quick Check
Symptom Quick Check
Burnt Smell / Odor
Computer or power adapter emits
an odor or smell of smoke.
1. Disconnect the battery and AC adapter from the
computer.
2. Attempt to identify the source of the odor. Visual
clues are component damaged like capacitor chip
popped or burn marks.
3. Check AirPort Card cable orientation.
Deep Dive
Check Result Action Code
1. Has the source of the odor
been identied.
2. Are any burn marks visible on
components?
Yes Replace the aected part. P08
No Go to step 2.
Yes An improperly seated cable,
damaged cable, or reversed
AirPort Card connection can
blow logic board components
near the connector. Make sure
you identify the cause before
replacing the aected part.
P08
2010-09-14
3. Refer to Liquid Contact
Indicators. Are any sensors
red?
No Go to step 3.
Yes For more information, refer
to kBase #HT3400: “About
liquid contact indicators
(LCI) on portable and
desktop computers”
Go to step 4.
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 56
Page 57
4. Is the computer operating
normally?
Yes This could be related to
No Please refer to best related
Battery Leaking or Swollen
Quick Check
Symptom Quick Check
normal operation. Also
check for accidental damage
cause using kBase #CP161:
“SERVICE: Determining
and Quoting Accidental
Damage.”
troubleshooting section. If
after inspecting the unit you
feel there is a possible safety
issue with computer or AC
adapter, please notify Apple.
Battery Leaking or Swollen
• Trackpad button does not work
• Battery pack case has opened.
• Bottom cover cannot be
reinstalled
1. Check if the battery is covered under a repair
extension program.
2. Refer to kBase #CP165: “SERVICE: Notebook
Computer Battery and Adapter Screening
Process“ and use “Battery pack is visibly
deformed” case under section 2E. Use symptom
code P13.
Uncategorized Symptom
Quick Check
Symptom Quick Check
Uncategorized Symptom
• Unable to locate appropriate
symptom code
1. Verify whether existing symptom code applies to
the issue reported by the user. If not, document
reported symptom and send feedback to
smfeedback6@apple.com stating that a suitable
symptom code could not be found.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Startup and Power Issues 57
Page 58
Display
Display Anomalies
Quick Check
Symptom Quick Check
Display Anomalies
• Incorrect/missing colors
• Distorted/blurred image
• Pixel anomalies
• Vertical/horizontal lines
• Non-uniform brightness
• Image icker
• Image persistence
1. Allow display to reach normal operating
temperature for about 15 minutes before
evaluating front-of-screen performance.
2. Check display preferences for use of custom
display prole.
3. Check brightness setting.
4. Check for Software Updates.
5. Clean glass panel while checking for dust/debris.
6. Go to Deep Dive: General
Deep Dive: General
Check Result Action Code
1. Verify if user’s issue is incorrect/
missing colors.
2. Verify if user’s issue is distorted/
blurred image.
Yes Go to Incorrect/Missing
Colors Deep Dive.
No Go to step 2.
Yes
Go to Distorted/Blurred
Image Deep Dive.
2010-09-14
3. Verify if user’s issue is bright or
dark pixel anomalies.
4. Verify if user’s issue is vertical or
horizontal lines.
5. Verify if user’s issue is nonuniform brightness.
No Go to step 3.
Yes
No Go to step 4.
Yes
No Go to step 5.
Yes
No LCD functioning OK.
Go to Pixel Anomalies Deep
Dive.
Go to Vertical/Horizontal
Lines Deep Dive.
Go to Non-uniform
Brightness Deep Dive.
MacBook Pro (13-inch) Symptom Charts — Display 58
Page 59
Deep Dive: Incorrect/Missing Colors
Check Result Action Code
1. Verify display is listed in the
System Proler’s Graphics/
Displays device tree.
2. Verify System Preferences
Display Prole is valid for
display being tested. Color
prole should be set to Color
LCD, user may have created an
o-color calibration setting.
3. Verify that the glass panel is
free of contaminants.
4. Run Clamshell Service
Diagnostic utility and check
for LCD panel presence. If not
found, reseat and verify LVDS
cable is secure to the logic
board. Are colors restored?
Yes This ensures color prole can
be matched with LCD.
Go to step 2.
No Go to N09.
Yes If display prole is valid and
the colors are still incorrect or
missing go to step 3.
No Set System Preferences:
Displays: Color to Color LCD
and retest.
Yes Go to step 4.
No Clean glass panel using
approved method. Retest.
Yes Loose cable connection. Issue
resolved.
No Go to step 5.
5. Set desktop pattern in System
Preferences to ‘Solid Gray Light’.
Verify if incorrect/missing color
issue aects entire display.
6. Set up display under test side
by side with another known
good display showing the
same image. Verify if issue
is noticeably worse on the
display being tested.
7. Substitute a known-good
display assembly to test logic
board video output. Is normal
video restored?
Yes Test a known-good display,
go to step 7.
No Go to step 6.
Yes Test a known-good display,
go to step 7
No Small variations in color
uniformity are normal and do
not warrant replacement or
repair of the display.
Yes Replace display assembly. L02
No Replace logic board. M04
L02
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Display 59
Page 60
Deep Dive: Distorted/Blurred Image
Check Result Action Code
1. Sample image illustrates loss of
LVDS data signals to LCD or a
defective LCD panel. Inspect &
reseat LVDS cable connection
looking for damaged or bent
pins. Is image restored with
reseated cable connection?
2. Substitute a known good
display clamshell to test logic
board video output. Is normal
video restored?
Yes Issue due to loose connection.
Display issue resolved.
No Go to step 2.
If logic board connector
damage, replace logic board.
Yes Replace display assembly. L04
No Replace logic board. M04
Deep Dive: Pixel Anomalies
Check Result Action Code
1. Determine if “defects” are dust/
debris on surface of glass panel.
2. Determine if bright pixel
defects exceed the acceptable
number. See kBase #HT1721:
“About LCD display pixel
anomalies”
Yes Clean glass panel.
No Go to step 2.
Yes Replace display assembly. L08
No LCD meets bright pixel defect
specications. Go to step 3.
M24
2010-09-14
3. Determine if dark pixel defects
exceed the acceptable number.
See kBase #HT1721: “About
LCD display pixel anomalies”
4. Determine if the combination
of bright/dark pixel defects
exceed the acceptable number.
See kBase #HT1721: “About
LCD display pixel anomalies”
Yes Replace display assembly. L08
No LCD meets dark pixel defect
specications. Go to step 4.
Yes Replace display assembly. L08
No Explain to user that LCD is
within specications. Do not
replace display assembly.
MacBook Pro (13-inch) Symptom Charts — Display 60
Page 61
Deep Dive: Vertical/Horizontal Lines
Check Result Action Code
1. Horizontal lines may be related
to a failing RAM module. Verify
if video issue only happens
AFTER the Apple logo and the
spinning wheel has appeared.
2. Start with shift key down
(safe mode) to disable system
extensions. Verify if issue still
happens when booting in safe
mode.
3. Isolate with only one memory
module installed , then with
the other one. Test with
known-good memory. Verify
that issue only happens with
specic RAM module(s).
4. Isolate with one known-good
memory module installed
in one of the memory slots.
Repeat by testing in the other
memory slot with knowngood memory module. Verify
that issue only happens with
specic memory slot on logic
board.
Yes Issue only happens AFTER
Apple logo and spinning
wheel appears. Go to step 2.
No Issue happens since startup.
Go to step 5.
Yes Go to step 5.
No No video issue when booting
in safe mode. Go to step 3.
Yes Replace aected RAM module. X02
No Go to step 4
Yes Replace logic board. M07
No Go to step 5
2010-09-14
5. Run Clamshell Service
Diagnostic utility and check
for LCD panel presence. If not
found, reseat the LVDS cable to
the logic board video output. Is
normal video restored?
6. Connect external compatible
DisplayPort display (or
DisplayPort adapter and
display). Verify if correct video
appears on external display.
7. Substitute a known-good
display assembly module to
test logic board LVDS video
output. Is normal video
restored?
Yes Issue resolved by reseating
loose LVDS cable.
No Go to step 6
Yes Go to step 7.
No Replace logic board. M04
Yes Replace display assembly
module.
No Replace logic board. M04
MacBook Pro (13-inch) Symptom Charts — Display 61
L05
Page 62
Deep Dive: Non-uniform Brightness
Check Result Action Code
1. Determine if brightness
uniformity issue is visible after
display has warmed up for 15
minutes.
2. Check LVDS cable connection
to logic board.
3. Determine if variation in
uniformity appears excessive
when compared to another
similar unit.
Yes Go to step 2.
No Display backlight can take
several minutes to stabilize.
Yes Reseat LVDS cable
No Got to step 3
Yes Replace display assembly. L07
No Explain to user that
LCD appears to meet
specications.
Defective Camera / Built-in iSight Not Operating Correctly
Quick Check
Symptom Quick Check
Defective Camera
• Camera not detected
• No green LED for camera
• Excessive blooming
• Poor white balance
• Poor focus
• Green image
• Image distortion
1. Check for Software Updates.
2. Verify camera lens and glass panel are clear of
contaminants.
Deep Dive
Check Result Action Code
1. Launch System Proler and
conrm that “Built-in iSight” is
listed under USB High-Speed
Bus.
Yes Camera recognized.
Go to step 3
No Go to step 2.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Display 62
Page 63
2. Run Clamshell Service
Diagnostic utility and check
for all devices presence. If
not found, inspect and reseat
camera cable on logic board. Is
iSight listed in System Proler?
Yes Camera recognized.
Go to step 3.
No Go to step 4.
3. Launch PhotoBooth. Verify that
camera’s green LED is on and
image appears normal.
4. Substitute a known-good
display assembly to test logic
board camera connection.
Is iSight camera operating
properly?
Yes Issue resolved.
No Go to step 4.
Yes Replace display assembly. X11
No Replace logic board. M13
Blank / No Video
Unlikely cause: Power adapter, speakers, optical drive, hard drive, fan, microphone, top case
Quick Check
Symptom Quick Check
Blank / No Video
• No video
• No backlight
1. Check brightness setting
2. Attach known-good supported external display.
3. Boot from Mac OS X install disc that came with
computer.
2010-09-14
Deep Dive
Check Result Action Code
1. Verify boot chime present
when system restarted.
Reset SMC and clear PRAM if
necessary for proper start up. Is
LCD video present?
2. Connect known-good
supported external display.
Verify whether image appears
on external display when
system is booted.
Yes Go to step 3.
No Go to step 2.
Yes External display detected by
system. Go to step 3.
No Go to No Video symptom
code ow.
MacBook Pro (13-inch) Symptom Charts — Display 63
Page 64
3. Verify if LCD backlight is on
by looking for faint glow
from display when viewed
in darkened room with
brightness adjusted to full.
Yes Video signal from system
to external video is OK, LCD
backlight is on. Go to step 5.
No Go to step 4.
4. Shine bright (low heat)
ashlight into the front of LCD.
Verify if an image is being
displayed.
5. Run Clamshell Service
Diagnostic utility and check
for LCD panel presence. If not
found, reseat and verify that
the display connections to the
logic board are secure. Verify if
image is restored by reseating
loose connections
6. Verify LCD video works with a
known-good display assembly.
Backlight Issue / No Backlight
Yes Image present but backlight
is not on. Check logic board
connections. Go to step 5.
No Go to No Video symptom
table.
Yes Issue resolved.
No Continue to test with known-
good display assembly.
Go to step 6.
Yes Replace display assembly. L03
No Go to No Video symptom
table.
Unlikely cause: Power adapter, battery, speaker, optical drive, hard drive, fan microphone, top
case
Quick Check
Symptom Quick Check
Backlight Issue / No Backlight
• Display not illuminated
• Flashing, unstable or non
uniform background lighting
• Poor backlight at some or all
settings
1. Check that brightness setting is above minimum.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Display 64
Page 65
Deep Dive
Check Result Action Code
1. Connect external display, clear
PRAM to set brightness to
default level and verify if Color
LCD is listed in the System
Proler’s Graphics/Displays
device tree.
2. Run Clamshell Service
Diagnostic utility and check
for LCD panel presence. If not
found, reseat the LVDS cable
at the logic board. Repeat
verication in System Proler.
3. Darken room and verify
backlight by detecting if any
glow is emitted from the
display
4. Swap memory with knowngood memory to determine if
video issue is RAM related.
5. Inspect LVDS connectors and
cable under magnication for
pinched cables and damaged
or bent pins. Do any of the
connections appear to be
defective?
Yes Display panel detected by
system. Go to step 3.
No Go to step 2.
Yes Display panel detected by
system. Go to step 3.
No Go to step 4.
Yes Backlight operating.
Go to step 5.
No Go to step 4.
Yes Reseat or replace defective
memory
No Go to step 5.
Yes Defective LVDS cable. Replace
display assembly.
Defective LVDS connector
on logic board. Replace logic
board.
No If connections are OK and
secure and the display is still
blank, go to step 6.
X01
M25
2010-09-14
6. Substitute a known-good
display clamshell to test
logic board video output. Is
backlight and display text back
to normal?
Yes Replace display assembly. L09
No Poor or no backlight LED
Driver power at logic board.
Replace logic board.
MacBook Pro (13-inch) Symptom Charts — Display 65
M25
Page 66
Noise / Unstable Flickering
Unlikely cause: Top case, battery
Quick Check
Symptom Quick Check
Noise / Unstable Flickering
• Image icker
• Audible noise
1. Verify known-good source sound le not causing
speaker distortion.
Deep Dive
Check Result Action Code
1. Verify if user’s issue is due to
video ickering coming from
display.
2. Verify display listed in the
System Proler’s Graphics/
Displays device tree is not
disappearing intermittently
(refresh System Proler to
observe).
3. Inspect and reseat the LVDS
cable and camera cable
connection between display
and logic board. Also test
if brightness setting is a
contributing factor. Has
ickering stopped?
Yes Suspected ickering issue,
go to step 2.
No Audible noise issue,
go to step 5.
Yes Power and LCD panel ID are
OK. Go to step 3.
No Go to No Video symptom
code ow.
Yes Loose cable connection. Issue
resolved.
No Go to step 4.
2010-09-14
4. Substitute a known good
display assembly to test logic
board video output. Has
ickering stopped?
5. Verify the source of the noise
is the electrical as opposed
to mechanical. Audio noise
should not be a concern now
that LCD components are all
solid state devices including
LED backlights.
Yes Replace display assembly. L06
No Replace logic board. M04
Yes Noises that are not audible
from the normal user position
are considered acceptable.
Return unit to the user.
No Noise from another source. Go
to Noise/Hum/Vibration.
MacBook Pro (13-inch) Symptom Charts — Display 66
Page 67
Mechanical/Physical Damage
Quick Check
Symptom Quick Check
Mechanical/Physical Damage
• Broken glass
• Broken hinge
• Stripped screw/head
• Stripped screw boss
• Dent or scratch to chassis
1. Determine damage caused by user/technician
environment, accidental damage, or abuse.
2. Inform user/technician the failures are not
covered by Apple warranties. Refer to
http://www.apple.com/legal/warranty
Cosmetic Defects
Quick Check
Symptom Quick Check
Cosmetic Defects
• Cracked LCD
• Scorched or melted LCD
• LCD impact damage
1. Determine damage caused by user/technician
environment, accidental damage, or abuse.
2. Inform user/technician the failures are not
covered by Apple warranties. Refer to
http://www.apple.com/legal/warranty
2010-09-14
Uncategorized Symptom
Quick Check
Symptom Quick Check
Uncategorized Symptom
• Unable to locate appropriate
symptom code
1. Verify whether existing symptom code applies to
the issue reported by the user. If not, document
reported symptom and send feedback to
smfeedback6@apple.com stating that a suitable
symptom code could not be found.
MacBook Pro (13-inch) Symptom Charts — Display 67
Page 68
Mass Storage
Hard Drive Read/Write Issue
Unlikely cause: LCD, speakers, fan, camera, microphone
Quick Check
Symptom Quick Check
Hard Drive Read/Write Issue
Bad Sector/Defective
Drive Formatting Issue
• Cannot save documents
• Read/Write error message
• Hang when accessing or
saving data
1. Boot from Install DVD. Verify S.M.A.R.T. status of
drive using Disk Utility.
2. Repair disk using Disk Utility.
3. Erase disk and reinstall Mac OS using Installer.
Deep Dive
Check Result Action Code
1. Start up from Restore DVD
and launch Disk Utility. Is hard
drive available for Disk Utility
to repair?
2. Did Disk Utility mount and
repair hard drive successfully?
Reseat hard drive if necessary.
Yes Go to step 2.
No Go to step 3.
Yes Restart computer.
Go to step 6.
No If computer has not been
veried with a known-good
hard drive, go to step 3;
otherwise, go to step 7.
2010-09-14
3. Substitute a known-good
bootable hard drive, does
system start up to desktop?
4. After reseating hard drive SATA
and logic board connections,
does known-good hard drive
boot to desktop?
Yes Reinstall user’s drive,
go to step 2.
No Continue to use known-
good bootable hard drive to
determine root cause.
Go to step 4.
Yes Reinstall user’s drive,
go to step 2.
No Suspect hard drive SATA
cable, go to step 5.
MacBook Pro (13-inch) Symptom Charts — Mass Storage 68
Page 69
5. Replace hard drive SATA cable
and retest with known-good
hard drive.
Yes Reinstall user’s drive,
go to step 2.
No Replace logic board. M19
X03
6. Did user’s hard drive start up
successfully?
7. Partition, erase & install Mac OS
on user’s hard drive. Did install
complete without error and
start up successfully?
8. Replace user’s hard drive. Does
drive format correctly with a
GUID partition map and install
Mac OS without errors?
Yes Issue resolved.
No Repair or replace hard drive,
go to step 7.
Yes Issue resolved
No Hard drive appears to be
defective, go to step 8.
Yes Issue resolved. H01
No SATA cable veried or
replaced and new hard drive
installed, replace logic board.
Hard Drive Not Recognized/Not Mounting
Unlikely cause: LCD, speakers, fan, camera, microphone, AirPort
Quick Check
M19
Symptom Quick Check
Hard Drive Not Recognized/
Mount
Drive No Boot
• Flashing question mark
• Boots to grey screen
• Boots to blue screen
1. Use a known-good mouse. Stuck mouse button
will not allow boot.
2. Boot from Install DVD. Verify S.M.A.R.T. status of
drive using Disk Utility.
3. Repair disk using Disk Utility.
4. Erase disk and reinstall Mac OS using Installer.
Deep Dive
Check Result Action Code
1. Boot from Restore DVD and
launch Disk Utility. Is hard drive
available for Disk Utility to
repair?
Yes Go to step 2.
No Go to step 3.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Mass Storage 69
Page 70
2. Did Disk Utility mount and
repair hard drive successfully?
Reseat hard drive if necessary.
Yes Restart computer,
go to step 6.
No If computer has not been
veried with a known-good
hard drive, go to step 3;
otherwise, go to step 7.
3. Substitute a known-good
bootable hard drive, does
computer start up to desktop?
4. After reseating SATA and
logic board connections, does
known-good hard drive start
up to desktop?
5. Replace hard drive SATA cable
and retest with known-good
hard drive.
6. Did user’s hard drive start up
successfully?
7. Partition, erase & install Mac OS
on user’s hard drive. Did install
complete without error and
start up successfully?
Yes Install user drive, go to step 2.
No Continue to use known-
good bootable hard drive to
determine root cause.
Go to step 4.
Yes Install user drive, go to step 2.
No Suspect hard drive SATA
cable, go to step 5.
Yes Install user drive, go to step 2. X03
No Replace logic board. M19
Yes Issue resolved.
No Restore or replace user’s hard
drive, go to step 7.
Yes Issue resolved.
No Hard drive appears to be
defective. Go to step 8.
2010-09-14
8. Replace user’s hard drive. Does
drive format correctly with a
GUID partition map and install
Mac OS without errors?
Yes Issue resolved. H01
No SATA cable veried or
M19
replaced and new hard drive
installed, replace logic board.
MacBook Pro (13-inch) Symptom Charts — Mass Storage 70
Page 71
Hard Drive Noisy
Unlikely cause: LCD, speakers, fan, camera, microphone
Quick Check
Symptom Quick Check
Hard Drive Noisy
• Noise during start up
• Noise during operation
• Noise when drive is copying or
saving data
1. Start up from Install DVD. Verify S.M.A.R.T. status of
hard drive using Disk Utility.
2. Repair disk using Disk Utility.
3. Check for reported noise and compare with
kBase #TS2354: Apple Portables: Hard drives
and noise
Deep Dive
Check Result Action Code
1. Boot from Restore DVD and
launch Disk Utility. Is hard drive
available for Disk Utility to
repair?
2. Repair disk using Disk Utility
and verify it completed
successfully
3. Is hard drive still noisy? Yes Remove hard drive and start
Yes Go to step 2.
No Replace hard drive or go to
Drive not recognized/mount.
Yes Restart computer.
Go to step 3.
No Go to step 4.
up from external drive to test
fan noise. Go to step 6.
2010-09-14
4. Erase disk and reinstall Mac
OS using Installer. Did process
complete?
5. After installing new hard drive,
do you still have drive noise?
No Issue resolved.
Yes Restart computer.
Go to step 3.
No Replace hard drive.
Go to step 5.
Yes Remove hard drive and start
up from external drive to test
fan noise. Go to step 6.
No Issue resolved.
MacBook Pro (13-inch) Symptom Charts — Mass Storage 71
H06
Page 72
6. After removing hard drive,
verify if the system is still noisy.
Yes Fan noise or optical drive
noise likely to be the cause.
See ODD Noisy table and Fan
failures/Thermal issues table.
No Go to step 7.
7. Install a known-good hard
drive and verify if the noise
level is similar to user’s hard
drive.
Yes Hard drive noise level is
similar to a known-good
drive and does not require
replacement.
No Replace hard drive.
Go to step 5.
Optical Drive Won’t Accept/Reject Media
Unlikely cause: LCD, speakers, fan, camera, microphone
Quick Check
Symptom Quick Check
Optical Drive Won’t Accept/
Reject Media
• Cannot insert a disc into the
drive
• Cannot eject a disc placed into
the drive
1. Use Apple System Proler ATA section to see if the
optical drive appears. If not, see Optical Drive Not
Recognized.,
2. Restart computer and hold down mouse button
or keyboard eject key to cycle optical drive.
3. Inspect optical drive slot for obstructions
H06
2010-09-14
Deep Dive
Check Result Action Code
1. Is optical drive listed in the
device tree for serial-ATA
devices in System Proler?
Yes Optical drive has power,
inspect disc acceptance.
Go to step 5.
No Inspect hardware.
Go to step 2.
MacBook Pro (13-inch) Symptom Charts — Mass Storage 72
Page 73
2. Verify all connections between
logic board, ex cable, and
optical drive are secure.
Visually inspect cables and
connectors for any debris,
damage, or bent pins. Is optical
drive now listed in System
Proler?
Yes Optical drive has power,
inspect disc acceptance.
Go to step 5.
No Replace any damaged cables
and retest. If connections
are good and with no visible
cable damage, go to step 3.
X03
3. Disconnect user’s optical
drive by lifting SATA cable at
logic board and connecting
Yes SATA port functional,
reconnect user’s optical drive
& SATA cable. Go to step 4.
a known good optical drive
assembly. Is optical drive now
No Replace logic board. M19
listed in System Proler?
4. Install and test user’s optical
Yes Cable change resolved issue. X03
drive with replacement SATA
ex cable. Is optical drive now
listed in System Proler?
No Replace the optical drive.
(Mechanical damage to
optical drive, if found)
5. Inspect optical drive slot
Yes Go to step 6.
for disc insert/eject. Is there
clearance for disc use?
No Replace damaged optical
drive or system top case that
interferes with disc use.
6. Insert known-good disc and
test user’s optical drive for
acceptance of disc. Does disc
Yes Replace the optical drive.
(Mechanical damage to
optical drive, if found)
auto eject?
No Go to step 7.
7. Does disc mount to desktop? Yes Go to step 8.
J03
(J06)
J01
(J05)
X13
J03
(J06)
2010-09-14
8. Does disc eject properly from
optical drive?
9. With replacement ex cable
and interconnect board, is disc
now recognized?
No Go to Optical Drive Read/
Write Data Error symptom
table.
Yes Issue resolved.
No Replace optical drive or top
case that interferes with disc
J02
X13
ejection.
Yes Issue resolved.
No Replace optical drive. If drive
J03
has already been replaced,
then replace logic board.
MacBook Pro (13-inch) Symptom Charts — Mass Storage 73
Page 74
Optical Drive Read/Write Data Error
Unlikely cause: LCD, speakers, fan, camera, microphone
Quick Check
Symptom Quick Check
Optical Drive Read/Write Data
Error
• Errors when writing optical
media.
• Errors when reading optical
media.
• Hang when accessing or
preparing to write data.
1. Test optical media in another drive of the same
type in same type of machine to rule out media
issue.
2. Check with known-good discs like the Install discs
that came with the computer.
3. For write issues, check with known-good media
that performs well in another computer and
optical drive of the same type.
4. Check both CD and DVD media. If only one type
of media is producing errors, there is a laser issue.
(J99)
Deep Dive
Check Result Action Code
1. Is media free to spin without
optical drive scraping edge or
surface of media?
2. Can optical drive read both CD
and DVD known-good media?
Yes Go to step 2.
No Replace optical drive. J03
Yes Go to step 6.
No Reading CD only or DVD only
indicates laser issue, replace
optical drive.
J03
2010-09-14
3. Reseat cable connections at
logic board and optical drive.
Verify that media is now
recognized and reads reliably.
4. Disconnect optical drive by
lifting SATA cable at logic
board and connecting a
known-good optical drive.
Verify that media is now
recognized and reads reliably.
Optical drive cannot read any
media reliably, go to step 3.
Yes Reseat resolved issue. X03
No Go to step 4.
Yes SATA port functional,
reconnect user’s optical drive
& SATA cable. Go to step 5.
No Replace logic board. M19
MacBook Pro (13-inch) Symptom Charts — Mass Storage 74
Page 75
5. Install and test with
replacement optical drive SATA
ex cable. Verify that media
is now recognized and reads
reliably.
Yes Cable change resolved issue. X03
No Replace the optical drive.
(Mechanical damage to
optical drive, if found)
J03
(J05)
6. Test write data to compatible
CD and DVD media. Verify
burned media is recognized
and reads reliably.
Yes Issue resolved.
No Replace the optical drive.
(Mechanical damage to
optical drive, if found)
Optical Drive Not Recognized/Mount
Unlikely cause: LCD, speakers, fan, camera, microphone
Quick Check
Symptom Quick Check
Optical Drive Not Recognized/
Mount
• Discs inject and eject, but do
not appear in Finder
1. Use Apple System Proler ATA section to see if the
optical drive appears.
2. Serial-ATA section of Apple System Proler will
show any media inserted.
3. Check Finder Preferences: General and make sure
“CD’s, DVD’s and iPods” is checked under “Show
these items on the Desktop.”
J03
(J06)
2010-09-14
4. Check both CD and DVD media. If only one type
of media is recognized, there might be a laser
related issue. (J99)
Deep Dive
Check Result Action Code
1. Is optical drive listed in the
device tree for SATA devices in
System Proler?
2. Verify all connections between
logic board, ex cable, optical
drive are secure. Visually
inspect cables and connectors
for any debris, damage, or bent
pins. Is optical drive now listed
in System Proler?
Yes Issue resolved.
No Go to step 2.
Yes Issue resolved.
No Replace any damaged cables
and retest. If connections
are good and with no visible
cable damage, go to step 3.
MacBook Pro (13-inch) Symptom Charts — Mass Storage 75
X03
Page 76
3. Disconnect optical drive by
lifting SATA cable at logic
board and connecting a
known-good drive. Is optical
drive now listed in System
Proler?
Yes SATA port functional,
reconnect user’s optical drive
& SATA cable. Go to step 4.
No Replace logic board. M19
4. Install and test with
replacement optical drive SATA
ex cable. Is optical drive now
listed in System Proler?
Yes Cable change resolved issue X03
No Replace the optical drive.
(Mechanical damage to
optical drive, if found)
Optical Drive Noisy
Unlikely cause: LCD, speakers, fan, camera, microphone
Quick Check
Symptom Quick Check
Optical Drive Noisy
• Noise during boot
• Noise during operation
• Noise when drive is copying or
writing data
1. Test optical media in another drive of the same
type in same type of computer to rule out media
issue.
2. Check with known-good discs. Install discs that
came with the computer.
3. Check to see if noise occurs without media in
the drive. If so, check for hard drive (H06) and fan
(M18) caused noise.
J03
(J05)
2010-09-14
Deep Dive
Check Result Action Code
1. Is optical drive constantly
seeking or cycling eject
mechanism without an optical
disc installed? Optical drive
should perform only one reset
sequence and rest idle, ready
for media.
Yes Continue and verify with
media, go to step 2.
No Replace optical drive if
continuous activity occurs
with no disc installed.
MacBook Pro (13-inch) Symptom Charts — Mass Storage 76
J04
Page 77
2. Insert known good data CD.
Is media free to spin without
optical drive scraping edge or
surface of media? Verify disc
does not exceed maximum
thickness specication.
Yes Continue and verify with
media, go to step 3.
No Internal mechanical
interference is aecting
rotational spin of media,
replace optical drive.
J04
3. Initial disc handling noise is
normal. Disc spinning and
head seek indicate disc is
mounting to desktop. Seek
noise should settle down
once mounted. Is noise above
normal and related to seek
activity?
4. Disc spin should cease 30
seconds after mounting data
CD on OS desktop. Is the noise
related to disc spin?
5. Remove the optical drive and
check for the correct seating
of the brackets on the optical
drive and in the top case.
Reinstall drive in unit and
retest. Verify if drive is still
noisy.
6. Eject known good data CD.
Disc handling noise should
be one pop of disc from
motor hub and a motor gear
sound driving disc out of
optical drive. Is noise above
normal and related to disc
eject activity or multiple eject
attempts?
Yes Replace optical drive. J04
No Go to step 4.
Yes Go to step 5.
No Go to step 6.
Yes Go to step 6.
No Issue resolved. Optical drive
(J05)
was not properly mounted in
enclosure. (Possible physical
damage to optical drive.)
Yes Replace optical drive. J02
No Go to step 7.
2010-09-14
7. Disc spin should cease 30
seconds after mounting data
CD on desktop. Media may
be mounting on a defective
internal spindle hub. Is the
noise related to disc spin?
Yes Replace optical drive. J04
No Noise does not appear to be
related to optical drive.
MacBook Pro (13-inch) Symptom Charts — Mass Storage 77
Page 78
Optical Drive Not Performing to Specs
Unlikely cause: LCD, speakers, fan, camera, microphone
Quick Check
Symptom Quick Check
Optical Drive Not Performing to
Specs
Read or write speeds slower than
expected.
1. Test optical media in another drive of the same
type in same type of computer to rule out media
issue.
2. Check with known-good discs—Install discs that
came with the computer.
3. For disc write issues, check with known-good
media that performs well in another computer
and drive of the same type.
4. Check both CD and DVD media. If only one type
of media is producing errors, there might be a
laser related issue. (J99)
Deep Dive
Check Result Action Code
1. Can optical drive read both CD
and DVD known-good media?
Yes Go to step 5.
No Reading CD only or DVD only
indicates laser issue, replace
optical drive.
J03
2010-09-14
2. Reseat cable connections at
logic board and optical drive.
Verify that media is now
recognized and reads reliably.
3. Disconnect optical drive by
lifting SATA cable at logic
board and connecting a
known-good drive. Verify that
media is now recognized and
reads reliably.
4. Install and test with
replacement optical drive SATA
ex cable. Verify that media
is now recognized and reads
reliably.
Optical drive cannot read any
media reliably. Go to step 2.
Yes Reseat resolved issue. X03
No Go to step 3.
Yes SATA port functional,
reconnect user’s optical drive
& SATA cable. Go to step 4.
No Replace logic board. M19
Yes Cable change resolved issue. X03
No Replace optical drive.
(Mechanical damage to
optical drive, if found)
MacBook Pro (13-inch) Symptom Charts — Mass Storage 78
J03
(J05)
Page 79
5. Test write data to compatible
CD and DVD media. Verify
burned media is recognized
and reads reliably.
Yes Issue resolved.
No Replace optical drive.
(Mechanical damage to
optical drive, if found)
SD (Secure Digital) Memory Card Will Not Insert Into Slot
Unlikely cause: LCD, logic board, hard drive
Quick Check
Symptom Quick Check
J03
(J06)
SD Memory Card will not insert
into SD Slot
• SD Memory Card does not fully
seat into the slot
• Slot door does not open
completely
1. The SD memory card must be a 32 mm by 24 mm
by 2.1 mm. You can also use thinner cards, such as
MultiMediaCards (MMC).
2. Clear any obstruction in the slot.
Deep Dive
Check Result Action Code
1. Check that a known-good SD
card ts in slot.
2. Does memory card now t in
SD slot?
Yes Ask user to replace defective
or out-of-spec SD card.
No Loosen all logic board screws
and insert known-good SD
card again. Go to step 2.
Yes Tighten back the logic board
screws and go to step 3.
No Replace logic board and
retest.
M17
2010-09-14
3. Does SD card now eject and
insert without issue?
Yes Issue resolved by logic board
alignment.
No Replace logic board. . M17
MacBook Pro (13-inch) Symptom Charts — Mass Storage 79
Page 80
SD (Secure Digital) Memory Card Not Recognized By System
Unlikely cause: LCD, logic board, optical drive, hard drive
Quick Check
Symptom Quick Check
SD Memory Card is not
recognized by the system.
• Card does not show up on the
desktop or in System Proler
1. Check correct drivers are installed for the user’s
SD card type. Standard SD memory cards are
supported by OS Software, but other may require
specic driver software to be used.
2. Verify with known good SD Memory card that
issue remains.
Deep Dive
Check Result Action Code
1. Verify that SD card inserts
correctly.
2. Verify that the SD card shows
up on the desktop or in System
Proler.
Yes Go to step 2.
No Go to SD Memory Card Will
Not Insert Into Slot symptom
table.
Yes Go to step 3
No Check that a known-good
SD Memory card can
read and write correctly
on system. If yes, redirect
user to SD card vendor for
faulty/unsupported card. If
no, replace logic board for
damaged SD card slot.
M17
2010-09-14
3. Unlock the user SD Card and
verify that it can be read and
written on system.
Yes System is functional.
No Check that a known-good
SD Memory card can
read and write correctly
on system. If yes, redirect
user to SD card vendor for
faulty/unsupported card. If
no, replace logic board for
damaged SD card slot.
MacBook Pro (13-inch) Symptom Charts — Mass Storage 80
M17
Page 81
Uncategorized Symptom
Quick Check
Symptom Quick Check
Uncategorized Symptom
• Unable to locate appropriate
symptom code
Verify whether existing symptom code applies to the
issue reported by the user. If not, document reported
symptom and send feedback to smfeedback6@
apple.com stating that a suitable symptom code
could not be found.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Mass Storage 81
Page 82
Communications
Ethernet Port/Device Issue
Unlikely cause: power adapter, battery, speakers, optical drive, hard drive, fan, camera,
microphone, top case, display clamshell, AirPort card
Quick Check
Symptom Quick Check
Ethernet Port/Device Issue
• No Ethernet device present
• Unable to access network
resources
• Ethernet device shows no
connection
• Ethernet device unable to get
an IP address
• Slow network performance
1. Check the network cable for damage, try a
known good Ethernet cable – CAT5 or better
recommended for 100Mbps+ connections.
2. Check Ethernet ports on Mac and wall/switch for
dust, debris, damage or bent pins.
3. Ensure distance from networking infrastructure is
less than 300 feet / 105 meters.
4. Verify port, cable and network hardware with a
known good system. Isolate rewall, MAC address
ltering or hardware access control devices.
5. Check system logs. Isolate OS by starting up from
original OS install disc (10.6.x) or compatible
known good OS.
Deep Dive
Check Result Action Code
1. Visually inspect Ethernet
connector to ensure all pins
will make physical contact with
CAT5 network cable.
Yes Ethernet interface contacts
are good. Go to step 2.
No Pins are damaged or bent at,
replace logic board.
M10
2010-09-14
2. Isolate OS by booting from
original OS install disc. Verify
Network Link status active by
using Network Utility on install
DVD. If Ethernet interface
(en0) Link Status is inactive,
recheck physical connect and
link activity indicator on hub/
switch.
Yes Ethernet interface (en0) Link
Status is active, go to step 3.
No If connection is OK on known-
good system, replace logic
board.
MacBook Pro (13-inch) Symptom Charts — Communications 82
M10
Page 83
3. Verify if IP address is listed
for the Ethernet interface in
System Preferences: Network.
Connect computer to network
with known-good DHCP IP
allocation, ensuring static
DHCP maps or ltering is not
preventing address allocation.
Note: DHCP allocation may not
be instantaneous depending
on network. Retest.
Yes Go to step 4.
No If connection is OK on known-
good system, replace logic
board.
M10
4. Verify connection by using
Network Utility to ping another
connected computer on
same subnet. Ensure target
computer’s IP address is valid,
on same subnet and powered
on. Ensure no MAC address
ltering or hardware access
control devices are present.
Use a simple hub/switch
environment.
5. Verify Ethernet performance
and reliability by starting up
from a known-good OS install,
and downloading a large le
from a web site or le server.
Yes Go to step 5.
No If the symptoms do not
change, replace the logic
board.
Yes If there is no performance or
connectivity issue isolated
solely to system under test,
the problem may be the
network environment. No
repair is necessary.
No If there are connection
dropouts or poor
performance not seen on
a known-good test system,
replace logic board.
M10
M10
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Communications 83
Page 84
AirPort/Bluetooth: Defective Wireless Devices
Unlikely cause: power adapter, battery, speakers, optical drive, hard drive, fan, microphone, top
case
Caution: When testing an AirPort card connection, wait at least 5 seconds after shutdown
before touching the camera cable connection to the logic board. Waiting less than that could
damage the AirPort card.
Quick Check
Symptom Quick Check
AirPort or Bluetooth: Defective
Wireless Devices
• Unable to join networks or pair
devices
• Card not available or
recognized
• Intermittent device or
connection dropouts
Deep Dive
1. Open System Preferences and make sure AirPort
or Bluetooth is turned on and (for AirPort) that a
network is selected.
2. Verify that correct OS is installed and all software
and rmware updates have been run.
3. Check that base station is not using unsupported
connection and encryption protocols.
4. Check for nearby interference sources such as
microwave ovens or cordless phones. See
kBase #HT1365: AirPort and Bluetooth:
Potential sources of interference for wireless
devices and networks
5. Check the number of users trying to use AirPort in
the area for possible network congestion.
6. Isolate OS by booting from original install disc.
Attempt to connect to base station (AirPort) or
pair with wireless keyboard (Bluetooth).
7. Reset PRAM.
2010-09-14
Check Result Action Code
1. Open System Proler, check
to see if AirPort and Bluetooth
are recognized. Run Clamshell
Service Diagnostic and check
for all devices’ presence.
Yes (AirPort) Ensure MAC address
ltering is not enabled on the
base station. Go to step 2.
(Bluetooth) Ensure
target devices are set to
discoverable.
No AirPort and/or Bluetooth not
recognized. Go to step 4.
MacBook Pro (13-inch) Symptom Charts — Communications 84
Page 85
2. (AirPort) To help replicate
intermittent AirPort issues,
fully open and fully close the
display clamshell 10-20 times,
then check to see if AirPort is
still recognized.
Yes AirPort recognized.
Go to step 3.
No After cycling clamshell AirPort
is no longer recognized,
or system crashed during
cycling. Go to step 4.
3. (AirPort) Put unit to sleep and
then wake it up. Is AirPort still
recognized?
4. Reseat camera cable
connection to logic board.
Retest, including fully opening
and fully closing the display
clamshell repeatedly, and verify
if issue is resolved.
5. (AirPort) Verify the antenna
connections to the AirPort
card are not reversed or loose.
Reseat antenna and I/O cable
connections.
Note: To minimize reassembly
between troubleshooting
steps, leave clutch barrel
o, put system on pink
foam triangle xture, attach
clamshell to top case using 1
clutch screw on each side, and
connect an external display,
keyboard and mouse.
Yes AirPort recognized.
Intermittent issue not
replicated. Continue testing
and get more info from user.
No AirPort not recognized.
Go to step 4.
Yes Loose logic board connection. N04
No AirPort issue, go to step 5;
Bluetooth issue, go to step 9.
Yes Loose connections or crossed
antenna.
If AirPort card connection was
found reversed, logic board
N04
M11
may have been damaged and
may need replacement.
No If connectors are secure,
antenna connections not
reversed and show no signs
of damage or wear,
go to step 6.
2010-09-14
6. (AirPort) Try a known-good
AirPort card. Retest, including
gentle twisting of the camera
cable near AirPort card to
simulate clamshell cycling, and
attempt a sleep/wake cycle,
and verify if issue is resolved.
7. (AirPort) Try a known-good
AirPort antenna. Retest,
including gentle twisting of
the camera cable near AirPort
card to simulate clamshell
cycling, and attempt a sleep/
wake cycle, and verify if issue is
resolved.
Yes Replace AirPort card.
N12
Reassemble unit and perform
10-20 open/close cycles of
clamshell.
No Reinstall original AirPort card.
Go to step 7.
Yes Replace AirPort antenna.
N14
Reassemble unit and perform
10-20 open/close cycles of
clamshell.
No Reinstall original AirPort
antenna. Go to step 8.
MacBook Pro (13-inch) Symptom Charts — Communications 85
Page 86
8. (AirPort) Try a known-good
display clamshell if available.
Retest, including gentle
twisting of the camera cable
near AirPort card to simulate
clamshell cycling, and attempt
a sleep/wake cycle, and verify if
issue is resolved.
Yes Replace display clamshell.
Reassemble unit and perform
10-20 open/close cycles of
clamshell. Remove EMI gasket
(if present) below camera
cable guide, above 3 clutch
screws, to prevent strain
damage to camera cable.
L16
9. (Bluetooth) Enable Bluetooth
and try a known good display
clamshell if available. Bluetooth
circuitry in the clamshell is not
accessible. Retest and verify if
issue is resolved.
No Reinstall original display
clamshell. Replace logic
board.
Yes Replace display clamshell. L16
No Replace logic board. M11
M11
No/Poor Wireless Signal
Unlikely cause: power adapter, battery, speakers, optical drive, hard drive, fan, microphone, top
case
Quick Check
Symptom Quick Check
No/Poor Wireless Signal
• Unable to nd networks
• Intermittent connection
dropouts
• Slow transfer speeds
1. Check for nearby interference sources in the
2.4/5GHz range such as microwave ovens and
cordless phones. See kBase #HT1365: AirPort and
Bluetooth: Potential sources of interference for
wireless devices and networks
2. Check that computer is within base station range
– move closer to base station.
2010-09-14
3. Base station checks:
a. Base station is not set to low-power
transmission mode
b. Base station is not using unsupported
connection and encryption protocols
c. Check for possible Wi-Fi channel overlap
(nearby base stations using adjacent channel)
4. Isolate OS by booting from original OS install disc
(10.6.x). Attempt to connect to base station.
MacBook Pro (13-inch) Symptom Charts — Communications 86
Page 87
Deep Dive
Check Result Action Code
1. Open System Proler, check to
see if AirPort card is recognized
under Network: AirPort Card.
Yes Make sure all AirPort software
and rmware updates have
been applied. Ensure base
station is not using MAC
address ltering or creating a
hidden network.
No AirPort not detected, go to
AirPort/Bluetooth: Defective
Wireless Devices symptom.
AirPort Card: Kernel Panic
Unlikely cause: power adapter, battery, speakers, optical drive, hard drive, fan, camera,
microphone, top case
Quick Check
Symptom Quick Check
AirPort Card: Kernel Panic
• Kernel panic on boot
• Kernel panic or freezing while
attempting to connect to Wi-Fi
networks
• Kernel panic while transferring
data on Wi-Fi networks.
1. Isolate OS by booting from original OS install disc.
Attempt to connect to Wi-Fi network.
2. Use Software Update to make sure all AirPort
software and rmware updates have been
applied.
2010-09-14
Deep Dive
Check Result Action Code
1. Ensure MAC address ltering
is not enabled on the base
station. Is kernel panic
resolved?
Yes Software issue.
No Go to AirPort/Bluetooth:
Defective Wireless Devices
symptom.
MacBook Pro (13-inch) Symptom Charts — Communications 87
Page 88
Wireless Performance Issue / Slow Connection
Unlikely cause: power adapter, battery, speakers, optical drive, hard drive, fan, microphone, top
case
Quick Check
Symptom Quick Check
Wireless Performance Issue /
Slow Connection
• Slow or stalled data transfers
• Intermittent connection
dropouts
1. Check for nearby interference sources in the
2.4/5GHz range such as microwave ovens or
cordless phones. See kBase #HT1365: AirPort and
Bluetooth: Potential sources of interference for
wireless devices and networks
2. (AirPort) Check the number of users trying to
use AirPort in the area for possible network
congestion. Move closer to base station to
improve signal reception.
3. (Bluetooth) Move devices closer together.
4. Check performance with a known-good system.
5. (AirPort) Wireless base station checks:
a. Base station is not set to low-power
transmission mode.
b. Base station is not set to a slower protocol
mode (802.11b).
c. Check for possible Wi-Fi channel overlap
(nearby base stations using adjacent channel).
6. Isolate OS by booting from original OS install disc.
Attempt to connect to base station (AirPort) or
pair with wireless keyboard (Bluetooth)
7. Use Software Update to make sure all AirPort and
Bluetooth software and rmware updates have
been applied.
2010-09-14
Deep Dive
Check Result Action Code
1. Inspect the display clutch
barrel for damage. AirPort
radio is in display clutch barrel
area.
Yes Record damage: Proceed
to possibly repair damaged
parts, go to step 2.
No No visible damage,
go to step 2.
MacBook Pro (13-inch) Symptom Charts — Communications 88
Page 89
2. Turn o Bluetooth. Bluetooth
circuitry in the clamshell
is not accessible. Refer to
kBase #TS1809: “MacBook
Air: Optimizing AirPort
performance while using
Bluetooth“
Retest AirPort performance. Is
issue resolved?
Yes Possible AirPort interference
from the Bluetooth card.
Change AirPort base station
channel.
No Go to AirPort/Bluetooth:
Defective Wireless Devices
symptom table.
Wireless Input Device Loses Connection
Unlikely cause: display clamshell, speaker assembly, optical drive, hard drive
Quick Check
Symptom Quick Check
N06
Wireless Input Device Loses
Connection
1. Check Bluetooth input device has fully charged
batteries.
Deep Dive
Check Result Action Code
1. System Proler should list
Bluetooth radio device under
system hardware. Is Bluetooth
device available?
2. System Preferences has a
Bluetooth panel. Ensure
Bluetooth is on and
discoverable. Are there any
devices listed in pairing
window?
3. Ensure a known-good
Bluetooth device is on, in close
range and in discoverable
mode. Is computer pairing with
known-good device?
Yes Bluetooth radio present, verify
Bluetooth preference settings,
go to step 2.
No Attempt Bluetooth repair,
go to step 5.
Yes Choose known-good device
and establish a connection.
Go to step 3.
No Attempt Bluetooth repair, go
to step 5.
Yes Pairing veried, connect with
user’s device, go to step 4.
No Attempt Bluetooth repair, go
to step 5.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Communications 89
Page 90
4. Is computer pairing with user’s
Bluetooth device?
Yes Connection established,
continue testing for
connection loss, go to step 7.
5. Run Clamshell Service
Diagnostic utility and check
for all devices presence. If not
found, reseat camera cable on
logic board. Is the Bluetooth
radio present, on and pairing
with a known-good device?
6. Install and test a knowngood display clamshell. Is the
Bluetooth radio present, on
and pairing with a knowngood device?
7. Continue to actively test
a known-good Bluetooth
device to determine if there
is a disconnect. Do not allow
computer to sleep during this
test. Is link lost during test?
8. Continue to test user’s
Bluetooth device to determine
if there is a disconnect. Do not
allow computer to sleep during
this test. Is link lost during test?
If link is lost during start up,
turn on System Preferences:
Bluetooth: Advanced: “Open
Bluetooth Setup Assistant at
start up when no input device
is present”.
No Check for software updates
K07
for both computer & device.
Yes Loose cable connection. N04
No Go to step 6.
Yes Replace display clamshell. L16
No Replace logic board. M11
Yes Check for software update,
2.4 GHz radio interference or
device low battery.
No Known-good device passed,
test with user’s Bluetooth
device.
Yes Check for software update, 2.4
GHz radio interference, device
low battery or user’s device
features list for explanation.
No User’s device not losing
connection. Issue not
repeatable or resolved.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Communications 90
Page 91
Wireless Input Device Doesn’t Pair
Unlikely cause: display clamshell, logic board, optical drive, hard drive
Quick Check
Symptom Quick Check
Wireless Input Device Doesn’t
Pair
• Can’t get the system to
recognize the Bluetooth
keyboard, mouse or trackpad
1. Check Bluetooth System Preference is set to
Discoverable.
2. Check Bluetooth device has fully charged
batteries.
3. Check for Bluetooth software updates for both
the device and Mac OS X.
4. If the Bluetooth pairs with no problems, probe
about potential interference issue at user’s site.
Deep Dive
Check Result Action Code
1. System Proler should list
Bluetooth radio device under
system hardware. Is Bluetooth
device available?
2. System Preferences has a
Bluetooth panel. Ensure
Bluetooth is on and
discoverable. Are there any
devices listed in pairing
window?
Yes Bluetooth radio present, verify
Bluetooth preference settings,
go to step 2.
No Attempt Bluetooth repair, go
to step 5.
Yes Choose known-good device
and establish a connection.
Go to step 3.
No Attempt Bluetooth repair, go
to step 5.
2010-09-14
3. Ensure a known-good
Bluetooth device is on, in close
range and discoverable mode,
Is system pairing with knowngood device?
4. Is Bluetooth pairing with user’s
Bluetooth device?
Yes Pairing veried, connect with
user’s device, go to step 4.
No Attempt Bluetooth repair, go
to step 5.
Yes Issue resolved.
No Check for SW update for both
System and user device.
MacBook Pro (13-inch) Symptom Charts — Communications 91
Page 92
5. Run Clamshell Service
Diagnostic utility and check
for all devices presence. If
not found, reseat camera
cable with logic board. Is the
Bluetooth radio present, on
and pairing with a knowngood device?
Yes Bad logic board connection.
Issue resolved.
No Go to step 6.
6. Install and test a known good
clamshell. Is the Bluetooth
radio present, on and pairing
with a known-good device?
7. With the logic board
replacement, is the Bluetooth
now pairing?
Yes Replace display clamshell. L16
No Replace logic board. Optional
Yes Bad logic board. Issue
No All parts replaced. Try
Uncategorized Symptom
Quick Check
Symptom Quick Check
Uncategorized Symptom
• Unable to locate appropriate
symptom code
1. Verify whether existing symptom code applies to
the issue reported by the user. If not, document
reported symptom and send feedback to
smfeedback6@apple.com stating that a suitable
symptom code could not be found.
M11
step 7.
M11
resolved.
minimum conguration
troubleshooting.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Communications 92
Page 93
Input/Output Devices
USB Port Does Not Recognize Known Devices
Unlikely cause: LCD, hard drive, optical drive
Quick Check
Symptom Quick Check
USB Port does not recognize
known devices
• USB wired keyboard or mouse
not recognized
• USB ash drive not recognized
1. Check the for latest software update.
2. Use Apple System Proler to verify the computer
recognizes the USB bus.
3. Test port with known good Apple keyboard or
mouse.
4. Verify any USB hubs have sucient power.
Deep Dive
Check Result Action Code
1. Reset SMC and clear PRAM.
Was USB device recognized?
2. Is USB device receiving power
from USB port? Note: rst
device to need >500ma will
get 1000ma, all others are
limited to <500ma.
3. Is the latest Mac-compatible
USB software driver for this
USB device installed?
Yes Issue resolved.
No Go to step 2.
Yes Go to step 3.
No Replace logic board. M15
Yes Replace logic board. M15
No Obtain Mac-compatible USB
driver.
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Input/Output Devices 93
Page 94
FireWire Port Does Not Recognize Known Devices
Unlikely cause: LCD, logic board, optical drive, hard drive
Quick Check
Symptom Quick Check
FireWire Port does not recognize
known devices
• Attached FireWire device,
such as digital camera or mass
storage drive, not recognized
by system
1. Check for latest software update.
2. Use Apple System Proler to verify computer
recognizes FireWire bus.
3. Test port by connecting to another computer
using FireWire Target Disk Mode.
4. Verify FireWire cable is good.
5. Verify a self powered FireWire device is getting
power.
Deep Dive
Check Result Action Code
1. Reset SMC and verify if
FireWire port is recognized.
Yes Issue resolved.
No FireWire port is bad.
Replace logic board.
Built-in Keyboard Does Not Work Properly
M12
2010-09-14
Unlikely cause: LCD, hard drive, optical drive
Quick Check
Symptom Quick Check
Built-in Keyboard Does Not Work
Properly
• Keystrokes not recognized
• Locks up
• Displayed characters don’t
match
MacBook Pro (13-inch) Symptom Charts — Input/Output Devices 94
1. In System Preferences: International: Input Menu,
enable Keyboard Viewer. Select Show Keyboard
Viewer from Input Menu in menu bar. Test
keyboard.
2. Conrm correct keyboard layout is selected.
3. Update to the latest system software.
4. Press Caps Lock to see if light comes on, which
would indicate at least a partial connection to
logic board.
Page 95
Deep Dive
Check Result Action Code
1. If specic keys are not working,
conrm if they are physically
broken.
2. Reseat keyboard ex cable to
logic board and verify that all
keys are functional.
3. Disconnect and verify that
keyboard ex cable is in good
condition (no delamination or
torn cable end, no missing or
cracked tracks).
Yes
No Go to step 2.
Yes Issue resolved. X99
No Go to step 3.
Yes Go to step 4.
No Replace top case.
Refer to kBase #HT4002:
MacBook/MacBook Pro:
Black Keycap Replacement.
If a keycap kit is available
for this model, order kit and
replace aected key(s).
Go to step 4.
If a keycap kit is not available
for this model, replace
complete top case.
Go to step 4.
Go to step 5.
K01
K01
4. Reseat cable and check that
ex cable end is fully inserted
and aligned with connector
on logic board, and that
connector lock is closed. Verify
that keyboard now functions
properly. Reseat cable and
verify with ASD that all keys
are functional.
5. Verify that all keys are
functional using ASD.
Yes Issue resolved. K01
No Replace top case.
Go to step 5.
Yes Issue resolved. K01
No Replace logic board. M15
2010-09-14
MacBook Pro (13-inch) Symptom Charts — Input/Output Devices 95
Page 96
Specic Keys Don’t Work
Unlikely cause: power adapter, battery, speakers, LCD, optical drive, hard drive, fan, microphone
Quick Check
Symptom Quick Check
Specic Keys Don’t Work
• Keycap broken
• Key switch broken
• Sticky key
• Key pressed not recognized
1. Determine if damage caused by user/technician
environment, accidental damage, or abuse.
2. Inform user/technician the failures are not
covered by Apple warranties. Refer to
http://www.apple.com/legal/warranty
3. Inspect keycap to remove debris trapped under it.
4. If the keycap is loose, check if clasp is still intact
and reattach it.
5. Refer to kBase #HT4002: MacBook/MacBook
Pro: Black Keycap Replacement. If a keycap kit
is available for this model, order kit and replace
aected key(s). If a kit is not available, replace
complete top case (code K01).
Built-in Trackpad Does Not Work
Quick Check
Symptom Quick Check
2010-09-14
Built-in Trackpad Does Not Work
• Cursor does not move.
• Select button of trackpad
inoperable
• Multiple touch features
inoperable
MacBook Pro (13-inch) Symptom Charts — Input/Output Devices 96
1. Check for environmental factors such as humidity,
hand lotion or jewelry. Check if user is touching
the trackpad simultaneously with both hands.
2. Clean the trackpad surface (with the computer
powered o) using a clean, dry, lint-free cloth.
3. Make sure all software and rmware updates have
been applied.
Page 97
Deep Dive
Check Result Action Code
1. Can you see the trackpad
continuously listed on USB in
Apple System Proler?
2. Does trackpad look damaged?
Verify trackpad alignment is
proper and click-depth set
screw is at factory setting.
3. Reseat the trackpad ex
cable to the logic board. Does
trackpad work now?
4. Is the trackpad connector on
the logic board damaged?
5. In System Preferences:
Universal Access, turn o
special Keyboard and Mouse
& Trackpad settings. Set for
normal use, enable and test
multiple touch features. Does
trackpad work now?
Yes Go to step 5.
No Go to step 2.
Yes Replace trackpad according
to symptom found.
- No mouse/trackpad
response
- Trackpad cursor not tracking
properly
- Trackpad button issues
Go to step 6.
No Go to step 3.
Yes Loose cable. Issue resolved.
No Go to step 4.
Yes Replace logic board. M24
No Go to step 5.
Yes Settings issue resolved.
No Go to step 6.
K02
K12
K13
2010-09-14
6. Does the select button click?
Verify trackpad alignment is
proper and click-depth set
screw is at factory setting.
7. Does a known-good trackpad
work?
MacBook Pro (13-inch) Symptom Charts — Input/Output Devices 97
Yes All trackpad issues resolved.
No Go to step 7.
Yes Replace trackpad according
to symptom found.
- No mouse/trackpad
response
- Trackpad cursor not tracking
properly
- Trackpad button issues
No Replace logic board. M16
K02
K12
K13
Page 98
Built-in Keyboard Has Dim or No Keyboard Backlight
Unlikely cause: LCD, hard drive, optical drive
Quick Check
Symptom Quick Check
Built-in Keyboard Has Dim or No
Backlight
• In darkened room, keyboard
backlight does not come on or
is dim.
1. Make sure that the option “Illuminate keyboard
in low light condition” is checked in Keyboard
System Preferences.
2. Make sure that keyboard backlight is turned on
and brightness turned up.
3. Block the ambient light sensor to simulate
darkened room.
Deep Dive
Check Result Action Code
1. Make sure that the option
“Illuminate keyboard in low
light condition” is checked in
Keyboard System Preferences.
Then cover the ambient
light sensor, located to left of
camera. Did the display dim?
2. Cover the ambient light sensor
again. Did the keyboard
backlight work?
Yes Ambient light sensor is
working. Go to step 4.
No Go to step 2.
Yes Issue resolved.
No Go to step 3.
2010-09-14
3. In the Apple System Proler,
can you see the AirPort and
Bluetooth cards?
4. Reseat the keyboard backlight
connection to the logic board.
Does the keyboard backlight
work now?
5. Measure the voltage between
pin 4 and pin 2 of the
keyboard backlight connector
J5815. Is there voltage present
with the running system in a
dark room?
MacBook Pro (13-inch) Symptom Charts — Input/Output Devices 98
Yes The light sensor connection
to logic board is likely good.
Replace display assembly.
No Go to step 4.
Yes Issue resolved.
No Go to step 5
Yes Replace top case. K10
No Replace logic board. M99
L14
Page 99
Built-in Keyboard Is Not Recognized
Unlikely cause: LCD, hard drive, optical drive
Quick Check
Symptom Quick Check
Built-in Keyboard Is Not
Recognized
• Keystrokes not recognized
1. Reset SMC.
2. Press Caps Lock. If the Caps Lock light comes on
that indicates at least a partial connection to the
logic board.
3. In System Preferences: International: Input Menu,
enable Keyboard Viewer. Select Show Keyboard
Viewer from the Input Menu in the menu bar. Test
the keyboard.
Deep Dive
Check Result Action Code
1. In Apple System Proler do you
see “Apple Internal Keyboard/
Trackpad” listed under USB
hardware devices?
2. Reset SMC and verify if Apple
Internal Keyboard/Trackpad is
now seen in the USB devices
list of Apple System Proler.
Yes Go to step 3.
No Go to step 2.
Yes Go to step 3.
No Replace logic board. M15
2010-09-14
3. Disconnect and verify that
keyboard ex cable is in good
condition (no delamination or
torn cable end, no missing or
cracked tracks).
4. Reseat cable and check that
ex cable end is fully inserted
and aligned with connector
on logic board, and that
connector lock is closed. Verify
that keyboard now functions
properly.
5. Verify that all keys are
functional using ASD.
MacBook Pro (13-inch) Symptom Charts — Input/Output Devices 99
Yes Go to step 4.
No Go to Built-In Trackpad Does
not Work symptom table.
Yes Issue resolved.
No Replace top case.
Go to step 5.
Yes Issue resolved.
No Replace logic board. M15
K11
Page 100
Built-in Trackpad Does Not Track Properly
Unlikely cause: LCD, hard drive, optical drive
Quick Check
Symptom Quick Check
Built-in Trackpad Does Not Track
Properly
• Cursor movement is random,
uneven, or jumpy.
• Cursor hangs or stalls along
path.
1. Check for environmental factors such as humidity,
hand lotion or jewelry. Check if user is touching
the trackpad simultaneously with both hands.
2. Clean the trackpad surface (with the computer
o) using a clean, dry, lint free cloth.
3. Make sure all software and rmware updates have
been applied.
4. If the issue occurs when system is running from
the power adapter, use a grounded power cord
with the power adapter.
Deep Dive
Check Result Action Code
1. Can you see the trackpad
continuously listed under USB
in Apple System Proler?
2. Does the trackpad look
damaged?
Yes Trackpad communicating to
system. Go to step 5.
No Go to step 2.
Yes Replace trackpad.
Go to step 6.
K04
2010-09-14
3. Reseat the trackpad ex cable
on the logic board. Does the
trackpad work now?
4. Is the trackpad connector on
the logic board damaged?
5. In System Preferences:
Universal Access, turn o
special Keyboard and Mouse
& Trackpad settings. Does
trackpad work now?
MacBook Pro (13-inch) Symptom Charts — Input/Output Devices 100
No Go to step 3.
Yes Loose cable. Issue resolved.
No Go to step 4.
Yes Replace logic board. M24
No Go to step 5.
Yes Settings issue resolved.
No Go to step 6.
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