Apple mac mini late09 Service Manual

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 Apple Technician Guide

Mac mini (Late 2009)

Mac mini (Late 2009) and Mac mini Server (Late 2009)
2009-10-27
 Apple Inc.
© 2009 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.
Apple 1 Innite Loop Cupertino, CA 95014-2084 USA + 1 408 996 1010 www.apple.com
Apple, the Apple logo, Mac, and Macintosh are trademarks of Apple Inc., registered in the U.S. and other countries.
Mac mini (Late 2009)

Contents

Manual Updates 7
Apple Technician Guide introduced 20 October 2009 7
Basics
Overview 10
Features Late 2009 Congurations 10 Product Congurations 10 System Serial Number Location 11 Power Supply Serial Number Location 12
Troubleshooting
General Troubleshooting 14
Update System Software 14 Apple Diagnostics 14 Wireless Troubleshooting 14 Troubleshooting Theory 14 Hardware vs. Software 14 Block Diagram 15 Common Reset Procedures 16
Symptom Charts 18
Startup and Power 18
No Power, Dead Unit 18 Won’t Start Up 20 Intermittent Shutdown 22 Kernel Panic, System Crashes 24 No Video 26 Corrupted Video 27 Burnt Smell/Odor 29 Noise, Hum, Vibration 31 Uncategorized Symptoms 34
Communications 35
AirPort/Bluetooth Issues 35 AirPort/Bluetooth Card Kernel Panic 38 Ethernet Port/Device Issue 39 Wireless Input Device Doesn’t Pair 41
Wireless Input Device Loses Connection 43 Uncategorized Symptoms 45
Mass Storage 46
Hard Drive Not Recognized 46 Hard Drive Read/Write Error 48 Hard Drive Noisy 49 Uncategorized Symptom- Hard Drive 52 Optical Drive Not Recognized 54 Optical Drive Won’t Accept/Eject Media 55 Optical Drive Read/Write Error 57 Optical Drive Not Performing to Specications 58 Optical Drive Noisy 59 Uncategorized Symptoms 61
Input/Output Devices 62
Apple Remote Inoperable 62 Audio: Built-in Speaker Has Distorted Sound 64 Audio: Built-in Speaker Has No Audio 65 FireWire Devices Not Recognized 67 USB Devices Not Recognized 69 Wired Keyboard Does Not Function Properly 71 Keyboard: Specic Keys Do Not Respond 73 Wired Keyboard/Mouse Not Recognized 73 Uncategorized Symptoms 75
Mechanical 76
Noise/Hum/Vibration 76 System Runs Hot 78 Physical Damage 79 Uncategorized Symptoms 79
Take Apart
General Information 81
General Tools 81 Reassembly Steps 81 Screw Sizes 81 Logic Board EMI Clips 82
Top Housing 83
Removal 84 Reassembly 85
Top Housing, Server (Late 2009) 86
Removal 87 Reassembly 88
Internal Frame 89
Removal 90 Reassembly 93
Antennas 95
Removal 96 Reassembly 98
Memory 100
Audio Board 102
Removal 103 Reassembly 105
AirPort/Bluetooth Combo Card 106
IR Board and Cable 108
IR Board and Cable (Late 2009) 111
Hard Drive Carrier (Late 2009) 114
Hard Drive, Lower 116
Hard Drive, Upper (Late 2009) 119
Removal 120 Reassembly 120
Optical Drive 121
Fan 124
Interconnect Board 127
Interconnect Board (Late 2009) 129
Battery 131
Speaker 133
Logic Board 136
Removal 137 Reassembly 140
Bottom Housing 141
Views
Exploded View 143
Screw Chart 144
Internal Views 145
Front View 145 Side View 1 145 Side View 2 146 Mac mini w/Optical 146 Mac mini Server w/Dual Hard Drives 147 Port View 148

Manual Updates

Apple Technician Guide introduced 20 October 2009

Take Apart: New parts specic to the Late 2009 congurations:
Top Housing, IR Board, Hard Drive Carrier, Hard Drive (Upper), Interconnect Board
2009-11-03
Mac mini (Late 2009) Basics — Manual Updates 7
2009-11-03
Mac mini (Late 2009) Basics — Manual Updates 8
 Apple Technician Guide

Basics

Mac mini (Late 2009)
Mac mini (Late 2009) and Mac mini Server (Late 2009)
© 2009 Apple Inc. All rights reserved.

Overview

This manual covers two Mac mini products developed in Late 2009:
Mac mini (Late 2009), shown on left• Mac mini Server (Late 2009), shown on right
Features Late 2009 Congurations
Processor: 2.26GHz Intel Core 2 (Better), 2.53 GHz Intel Core 2 (Best), and 2.53 GHz Intel Core
2 (Server)
NVDIA GeForce 9400M graphics• Memory: 2GB (Better), 4GB (Best), 4GB (Server)• Hard drives: 160GB (Better), 320GB (Best), dual 500GB SATA (Server)• Mac OS X Snow Leopard
Product Congurations
To conrm the conguration from the Apple menu, choose About This Mac. The processor listing will show the speed of the processor followed by the processor type.
For product congurations, refer to Applecare Tech Specs: http://support.apple.com/specs/
2009-11-03
Mac mini (Late 2009) Basics — Overview 10

System Serial Number Location

The product serial number and Ethernet ID are located on the bottom housing.
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Mac mini (Late 2009) Basics — Overview 11

Power Supply Serial Number Location

Locate the power supply.1.
Look closely into the opening on the end of the power supply. The serial number is located 2. on the inside cavity of the power supply, where the plug inserts into the power supply.
2009-11-03
Mac mini (Late 2009) Basics — Overview 12
 Apple Technician Guide

Troubleshooting

Mac mini (Late 2009)
Mac mini (Late 2009) and Mac mini Server (Late 2009)
© 2009 Apple Inc. All rights reserved.

General Troubleshooting

Update System Software

Important: Whenever possible before beginning troubleshooting, ensure the latest software
and rmware updates have been applied.

Apple Diagnostics

Run diagnostics to determine if any of the modules are malfunctioning.
Mac mini (Late 2009): Apple Diagnostics: 3S133• Mac mini Server (Late 2009): Apple Server Diagnostics: 3X106• Apple Hardware Test: 3A150 (all models)

Wireless Troubleshooting

If you’re having issues with AirPort and wireless mouse or keyboard connectivity issues, refer to the following Knowledge Base articles:
Desktop computers: Troubleshooting wireless mouse and keyboard issues http://support.
apple.com/kb/TS3048
AirPort and Bluetooth: Potential sources of interference http://support.apple.com/kb/
HT1365
Apple Wireless Keyboard and Mouse: How to install batteries http://support.apple.com/kb/
HT3903
2009-11-03

Troubleshooting Theory

For general information on troubleshooting theory, refer to:
http://service.info.apple.com/service_training/en/006/troubleshoot/index.php?page=intro

Hardware vs. Software

For information on how to isolate a hardware issue from a software issue, refer to the following articles:
Isolating issues in Mac OS X: http://support.apple.com/kb/TS1388?viewlocale=en_US Mac OS X: Troubleshooting installation and software updates: http://support.apple.com/
kb/TS1394
Troubleshooting Mac OS X installation from CD or DVD: http://support.apple.com/kb/
HT2956>
For information on how to troubleshoot a software issue, refer to:
Mac OS X: How to troubleshoot a software issue: http://support.apple.com/kb/HT1199
Mac mini (Late 2009) General Troubleshooting — Apple Diagnostics 14

Block Diagram

Refer to this diagram to see how modules are interrelated.
2009-11-03
Mac mini (Late 2009) General Troubleshooting — Block Diagram 15

Common Reset Procedures

When a reset procedure is required for troubleshooting, follow the applicable steps:
Resetting the System Management Controller (SMC)
To reset power management via the SMC chip:
Unplug all cables from computer, including power cord.1.
Wait at least 15 seconds. The SMC reset occurs automatically once the Mac mini has been 2. unplugged from AC power source for several seconds.
Plug power cord back in, making sure power button is not being pressed. 3.
Reconnect keyboard and mouse to computer.4.
Press power button on back to start up computer.5.
Resetting the SMC means you will also need to reset the date and time (using the Date & Time pane of System Preferences).
Resetting the Parameter RAM (PRAM)
To reset PRAM,
If the computer is on, turn it o.1.
Locate the following keys on the keyboard: Command, Option, P, and R. You will need to 2. hold these keys down simultaneously in Step 4.
Note: If the keyboard does not have an Option key, use the Alt key instead.
Turn on the computer.3.
Press and hold the Command-Option-P-R keys. 4.
Important: You must press this key combination before the gray screen appears.
Hold the keys down until the computer restarts and you hear the startup sound for the 5. second time.
Release the keys.6.
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Mac mini (Late 2009) General Troubleshooting — Common Reset Procedures 16
Starting Up in Safe Mode
A Safe Boot is a special way to start Mac OS X when troubleshooting. To start up into Safe Mode (Safe Boot),
Make sure the computer is shut down.1.
Press the power button.2.
Immediately after you hear the startup tone, press and hold the Shift key.3.
Note: The Shift key should be held as soon as possible after the startup tone but not before.
Release the Shift key when you see the screen with the gray Apple and progress indicator 4. (looks like a spinning gear). During startup, ”Safe Boot” appears on the Mac OS X startup screen. To leave Safe Mode, restart the computer normally, without holding down any keys during startup.
For more information:
http://www.apple.com/support
HT1564—What is Safe Boot, Safe Mode? <http://support.apple.com/kb/HT1564>
TS1884—Safe Boot take longer than normal startup <http://support.apple.com/kb/
TS1884>
2009-11-03
Mac mini (Late 2009) General Troubleshooting — Common Reset Procedures 17

Symptom Charts

Follow the steps in the order indicated below. If an action resolves the issue, retest the system to verify.
Note: A compilation of Quick Check tables is available at:
http://service.info.apple.com/QRS/en/quickreference.pdf

Startup and Power

No Power, Dead Unit
Unlikely cause: speakers
Quick Check
Symptoms Quick Check
No Power, Dead Unit
No power• No LED• No fan spin• No startup chime• No image on external display• No hard drive or optical drive • activity Caps Lock LED on wired • keyboard doesn’t light when pressed.
Verify power source.1. Verify power cable.2. Listen closely for signs of activity from system 3.
including: rotating fans, hard drive or optical drive activity, startup chime, etc. If there is activity then go to the ‘Startup and Power Issues’ symptom ow.
2009-11-03
Mac mini (Late 2009) Symptom Charts — Startup and Power 18
Deep Dive
Unlikely cause: speakers
Check Result Action Code
Power ON system. Verify if 1. there is any indication that the system has powered up (fan rotation, hard drive or optical drive noise, backlight turns on).
Disconnect AC power from 2. adapter for 1 minute, and reconnect. Does the system power on when power ON button is pressed?.
Does the unit power on with 3. known good power adapter?
Remove drive internal frame 4. assembly SDRAM, and AirPort/ Bluetooth card. Connect power adapter. When the ON button is pressed, does the LED light?
Yes The symptom is powering
up. Jump to Won’t Start Up
symptom ow.
No Go to step 2.
Yes It is possible for the power
adapter to trip. After problem is identied, determine if the adapter continues to trip. Replace as needed.
Code may be a P01 (if adapter is replaced)
No Go to step 3
Yes Bad power adapter, replace
and retest.
No Go to step 4.
Yes Go to Won’t Start Up
symptom ow step 3
No Go to step 5.
P01
P16
2009-11-03
Inspect power ON button for 5. damage, disconnect power ON cable from logic board, and short pins on connector. Does the front LED power on?
Disconnect LED, remove logic 6. board from bottom housing. Place the logic board on a clean non-metallic surface. Reconnect LED without mounting in housing, Short the power ON pins. Does the LED light?.
Yes Bad power switch, replace
bottom housing.
No Go to step 6
Yes Bottom Housing causing an
issue with board, examine for defects or replace.
No Replace logic board and
retest.
Mac mini (Late 2009) Symptom Charts — Startup and Power 19
X14
X13
M01
Won’t Start Up
Quick Check
Symptoms Quick Check
Won’t Start Up
No startup chime• Error tones during startup.• Grey screen with fan noise, or • other noise. Will not progress beyond • Apple logo or spinning gear.
Isolate OS by starting up from original install 1. media for the computer, the same make and model computer in Target Disk Mode, or compatible known-good OS on an external drive. Both AirPort and Bluetooth services are available when booted from the Install disk.
Reset SMC and PRAM to clear any stored, 2. corrupted information.
Start up in Safe Mode by holding the shift key 3. down during startup to load only required kernel extensions and disable all startup and login items. See KBase article
http://support.apple.com/kb/HT1564
If system generates error tones there may be an 4. issue with the SDRAM. See KBase article
http://support.apple.com/kb/HT2341
Identifying when in the startup process the 5. computer hangs can help isolate the issue. See KBase article
http://support.apple.com/kb/HT2674
for information on the Macintosh startup sequence, error codes and symbols used.
2009-11-03
Deep Dive
Check Result Action Code
Boot the computer to Apple 1. Hardware Test on the Install DVD. Does the computer boot up to this volume?
Remove the installed SDRAM, 2. and test with known-good SDRAM. Does the computer startup properly now?
Yes Run the extended tests
and proceed with results. If AHT passes or boots with a memory error, go to step 2.
No Go to step 2.
Yes SDRAM issue. Replace SDRAM.
Issue resolved.
No Go to step 3.
Mac mini (Late 2009) Symptom Charts — Startup and Power 20
X02
Remove the coin battery on 3. the logic board, and leave out for approximately 1 minute. Then reinstall the battery. This will reset the logic board. Does the computer startup properly now?
Yes Issue resolved by logic board
reset. Measure DC voltage on the battery touching the battery with the red probe, and grounding with the black probe. If voltage is 2.7v or less, replace the battery. See KBase article http://support.apple.
com/kb/HT3250 for details
on using a digital multi-meter.
No Go to step 4.
M20
Disconnect the drive carrier 4. assembly and power on system. With video only connected to the board, is there a gray screen with a ashing folder?
Attempt to boot the system 5. with a known good Firewire boot drive. Does it boot?
Connect the interconnect 6. board to the logic board. Is there a gray boot screen with a ashing folder?
Remove the hard drives (one at 7. a time) from the internal frame assembly, install the internal frame. Does the system boot (other drive may be an optical drive or second hard drive)?
Yes Go to Step 5
No Replace logic board.. M02
Yes Go to Step 6.
No Replace the logic board. M02
Yes Go to step 7
No Replace the interconnect
board.
Yes Go to step 8
No If the optical drive in not
recognized, go to Optical
Drive not recognized.
2009-11-03
Install hard drive and optical 8. drive into the internal frame assembly, Does the system boot the Install DVD, and see the hard drive?
If the other hard drive in not recognized, go to Hard Drive
Not Recognized
Yes Possible connection issue.
Retest to verify.
No Go to Hard Drive Not
Recognized.
Mac mini (Late 2009) Symptom Charts — Startup and Power 21
Intermittent Shutdown
Quick Check
Symptoms Quick Check
Intermittent Shutdown
Powers o during startup.• Powers o during desktop use.• Computer restarts • spontaneously. Powers o when waking from • sleep.
Isolate OS by starting up from original Install 1. media for the computer, the same make and model computer in Target Disk Mode, or compatible known-good OS on an external drive. Both AirPort and Bluetooth services are available when booted from the Install disk.
Reset SMC and PRAM to clear any stored, 2. corrupted information.
Start up in Safe Mode by holding the shift key 3. down during startup to load only required kernel extensions and disable all startup and login items. See KBase article
http://support.apple.com/kb/HT1564
Open System Preferences > Energy Saver > 4. Schedule and make sure that a ‘Shut Down’ event is not scheduled.
Make sure that power cord is securely attached to 5. the back of the computer, and is not hindered by a desk or other furniture.
Plug the computer directly into an AC outlet to 6. test whether a surge protector, outlet strip, or UPS is causing the issue.
2009-11-03
Deep Dive
Check Result Action Code
Verify improper shutdown 1. by opening the system.log located in /var/log. Filter the log for “shutdown cause”. Entries of value “0” or a negative value indicate an improper shutdown. Did you nd entries of improper shutdown?
Yes Determine if user caused
improper shutdown. Use known-good AC power cord and AC outlet. Go to step 2.
No Revisit Quick Check examples
for possible software issues. Check if user is running other automating software that may be shutting down system. Verify issue and jump to appropriate symptom ow. No repair needed under current symptom ow.
Mac mini (Late 2009) Symptom Charts — Startup and Power 22
With known-good AC power 2. cord and AC outlet, does the unit continue to shutdown?
Yes Go to step 3.
No Replace adapter P02
Disconnect the hard drive 3. power cable from the hard drive and start the machine from the Install DVD, the same make and model computer in Target Disk Mode, or compatible known-good OS on an external drive. Does the computer continue to shutdown? If yes, disconnect the hard drive from the interconnect board, boot the system from a known good DVD or external drive with a known compatible OS.
Does the computer continue to shutdown?
Check temperature sensor and 4. run Apple Hardware Test (AHT) or Apple Server Diagnostics. Does it pass?
Yes Go to step 4.
No Possible bad software or hard
drive. Go to Hard Drive Not
Recognized symptom ow.
Yes Retest. Go to step 1 if problem
continues.
No Go to step 5.
2009-11-03
Replace or check aected 5. sensor or assembly. Does AHT pass?
Yes Retest. Go to step 1 if problem
continues.
No Logic board issue. Replace
M08
logic board.
Mac mini (Late 2009) Symptom Charts — Startup and Power 23
Kernel Panic, System Crashes
Quick Check
Symptoms Quick Check
Kernel Panic, System Crashes
Kernel Panic on startup or • desktop use. System freeze during use.• System freeze upon wake from • sleep.
Isolate OS by starting up system from original 1. Install media for the computer, the same make and model computer in Target Disk Mode, or compatible known-good OS on an external drive. Both AirPort and Bluetooth services are available when booted from the Install disk.
Ensure that all software and rmware updates 2. for the computer have been installed to take advantage of any available bug xes.
Reset SMC and PRAM to clear any stored, 3. corrupted information.
Start up in Safe Mode by holding the shift key 4. down during startup to load only required kernel extensions and disable all startup and login items. See KBase article
http://support.apple.com/kb/HT1564
Check the panic.log, located /Library/Logs/5. Panicreporter, for information in the backtrace that may give clues about the kernel panic.
For more information on kernel panics refer to 6. KBase article
http://support.apple.com/kb/HT1392
2009-11-03
Deep Dive
Check Result Action Code
Boot the machine to Apple 1. Hardware Test on the Install DVD, OR, boot Apple Server diagnostics by holding down the “D” key. Does the computer boot up to this volume?
Remove all peripheral devices 2. including the keyboard and mouse. Does computer start without kernel panic?
Yes Run the extended tests and
proceed with results. If AHT passes or boots with a kernel panic, go to step 2.
No Go to step 2.
Yes Add peripheral devices one at
a time until the kernel panic repeats. Replace the device causing the issue.
No Go to step 3.
Mac mini (Late 2009) Symptom Charts — Startup and Power 24
Use known-good SDRAM in 3. the system. Does the computer start without kernel panic now?
Yes Install user’s SDRAM and test.
If kernel panic repeats, replace SDRAM. Verify that the correct SDRAM is being used.
No Go to step 4.
X01
Remove AirPort /Bluetooth card 4. and test. Does the computer start without kernel panic now?
Disconnect the Hard Drive from 5. internal frame assembly and startup to the Install DVD on the optical drive, or an external volume. Does the computer start without kernel panic now?
Disconnect the Audio Board 6. and test. Does the computer start without kernel panic now?
Disconnect the Optical Drive 7. from the internal frame assembly and test. Does the computer start without kernel panic now?
Yes Go to AirPort Card Kernel
Panic symptom ow.
No Go to step 5.
Yes Go to Hard Drive Not
Recognized symptom ow.
No Go to step 6
Yes Replace the Audio Board X99
No Go to step 7.
Yes Go to Optical Drive not
recognized symptom ow
No Replace logic board.
2009-11-03
Mac mini (Late 2009) Symptom Charts — Startup and Power 25
No Video
Unlikely cause: hard drive, optical drive, speakers, camera, microphone
Quick Check
Symptoms Quick Check
No Video
No image.
Check display connections1. Check connections for pin damage.2. Reset SMC.3. Go to Deep Dive.4.
Deep Dive: No Video
Check Result Action Code
Verify boot chime present and 1. fans running when system powered ON. (Reset SMC and clear PRAM if necessary for proper boot up.)
Connect supported external 2. display via mini display port. Verify whether image appears on external display when system is booted.
Yes Power ON self test OK. Boot
sequence started. Go to step 2.
No Go to Won’t Start Up
symptom ow.
Yes Video present. Verify system
functionality and return to user or jump to appropriate troubleshooting ow.
No Go to step 3.
2009-11-03
Connect supported external 3. display via mini-DVI port. Verify whether image appears on external display when system is booted.
Yes External display detected by
system. Video circuitry on logic board functional. Return to customer or jump to appropriate troubleshooting ow.
No Replace logic board. Retest. M03
Mac mini (Late 2009) Symptom Charts — Startup and Power 26
Corrupted Video
Unlikely cause: Adapter, hard drive, optical drive, fan, or speaker.
Quick Check
Symptoms Quick Check
Corrupted Video
Text and graphics appear fuzzy• Image corrupted
Deep Dive
Set System Preferences/Display LCD panel to 1. native resolution. Non-native resolutions are unable to produce optimal clarity.
Make sure all relevant software updates have 2. been applied. Graphics driver updates may be included with software updates.
When the issue occurs take a screenshot of the 3. display (Command-Shift-3). View the screen shot le on another known-good computer. If the image corruption can be seen in the screenshot then the issue is with the video drivers, software, or video/logic board. If the issue cannot be seen in the screenshot then the display and cable should be tested further.
Boot from install DVD or another known-good 4. volume to determine whether a potential software/driver issue exists.
Go to Deep Dive.5.
2009-11-03
Check Result Action Code
Boot from Install DVD and 1. verify whether issue is still visible.
Verify whether issue is visible 2. on an external display attached to the DisplayPort or Mini­DVI. Does the issue appear on “other” display port?
Yes Go to step 2.
No Issue likely caused by
software or driver issue. Troubleshoot for software issues. Make sure all software updates have been installed.
Yes Issue is isolated to one type of
display port. Go to step 3.
No Go to step 5.
Mac mini (Late 2009) Symptom Charts — Startup and Power 27
Inspect display connector and 3. display cables. Reseat. Does the issue persist?
Yes Replace Logic board.
Go to step 4.
No Issue likely caused by poor
connection. Return computer to user.
M04
Verify whether issue is still 4. present with replacement logic board installed.
Test with another similar 5. display with same display connection to determine if issue persists?.
Yes Go to step 5.
No Issue resolved with
replacement logic board installed. Return system to customer.
Yes Replace logic board, may be
incompatible with the display. Go to step 4.
No Issue resolved with
replacement logic board. Return system to customer.
M04
2009-11-03
Mac mini (Late 2009) Symptom Charts — Startup and Power 28
Burnt Smell/Odor
Unlikely cause: speakers, microphone, housing
Quick Check
Symptoms Quick Check
Burnt Smell/Odor
Burning smell• Unusual odor
Verify source of smell/odor is emanating from the 1. system.
Refer to KBase articles: 2.
http://support.apple.com/kb/TA22044 or http://support.apple.com/kb/TA22045.
Disconnect all third party devices and conrm 3. whether the odor is being generated by the device.
Inspect air intake and air outlets for obstructions. 4. To prevent overheating make sure there is sucient clearance to allow air to ow unobstructed into and out of the system.
Verify whether system is functional.5. Go to Deep Dive.6.
Deep Dive
Check Result Action Code
Verify whether the source of 1. the odor can be identied by visually inspecting each module and it’s associated cables for signs of burned or damaged components, smoke residue, burned traces, or melted or damaged wiring,
Yes Replace aected module(s).
Go to step 2
No Unable to locate source of
odor. Go to step 3.
P08
2009-11-03
Disconnect all 3rd party devices 2. and cables. Power ON system and verify whether smoke or strong odor returns.
Yes Power down system
immediately. Go to step 3.
No System functions correctly.
Verify system functionality with 3rd party devices and cables and return system to user if problem has been resolved. Consult 3rd party companies as needed for issues with those products.
Mac mini (Late 2009) Symptom Charts — Startup and Power 29
Can the source of the odor be 3. located using nose?
Yes Replace aect module(s) and
retest system.
No Contact Apple for assistance
if you feel that there is a possible safety issue with the computer that has not been resolved in the previous steps.
P08
2009-11-03
Mac mini (Late 2009) Symptom Charts — Startup and Power 30
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