Service Source
iMac (24-inch Mid 2007)
Updated 16 December 2008
© 2007 Apple Inc. All rights reserved.
Apple Inc.
© 2007 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, and Macintosh are trademarks of Apple Inc., registered in the U.S. and
other countries.
ii
iMac (24-inch Mid 2007)
Contents
Manual Updates 7
16 December 2008 7
21 March 2008 7
19 December 2007 7
10 December 2007 8
7 November 2007 8
Take Apart
General Information 10
Product View 10
Opening the Computer 10
Note About Images in This Manual 10
Serial Number Location 11
General Tools 12
Required Special Tools 12
View of the Main Modules 14
View of the Rear Housing and Cables 14
Back View 15
I/O Ports 16
Cleaning and Handling the Glass Panel 17
Do’s and Don’ts 18
Handling a Broken Glass Panel 18
Safety 19
EMI Shielding 20
Access Door 21
Memory 23
Glass Panel 26
Cleaning and Handling of the Glass Panel 27
Removing the Glass Panel 30
Replacing the Glass Panel 33
Installing a Replacement Glass Panel 38
Front Bezel 43
Camera Board 49
iii
Battery 52
IR (Infrared) Board 55
AirPort Extreme Card 58
Bluetooth Card 62
LCD Temp Sensor and Cable 65
Speaker, Left 71
LCD Display Panel 76
Ambient Temperature Sensor Cable 83
Ambient Temperature Sensor 87
LVDS Cable 91
Inverter Cable 96
Speaker, Right 101
Optical Drive Fan 104
CPU Fan 107
Power Supply, AC/DC 110
Hard Drive 117
Hard Drive Sensor Cable 124
Optical Drive 127
Optical Flex Cable 133
Optical Sensor Cable 135
Logic Board 139
Video Card 148
Hard Drive Fan 153
Audio Board 156
Hard Drive Data Cable 159
Clutch Cover 162
Stand 165
iv
Chassis 170
Clutch Mechanism 175
AC Power Inlet 180
Camera Cable 186
Microphone Cable 191
DC Power Cable 197
Rear Cover 202
Troubleshooting
General Information 206
Serial Number 206
Power On Self Test (POST) 207
DDR Memory 208
Diagnostic LEDs 209
Symptom Charts 211
How to Use the Symptom Charts 211
Power Issues 212
Video 213
System Shuts Down 215
Glass Panel 216
Display Panel 217
Hard Drive 218
Optical Drive 220
Fan Sound 225
AirPort 230
Bluetooth 231
IR Remote 232
IR Sensor/Receiver 233
Built-in iSight Camera 234
Speakers 236
Mouse 237
Keyboard 238
Error Beep(s) 240
USB 241
Views
iMac (24-inch, Mid 2007)—Upper Exploded View 244
iMac (24-inch 2007)—Lower Exploded View 245
Screw Chart 246
v
vi
Manual Updates
16 December 2008
Take Apart
Power Supply-->Replacing the Power Supply--> Added a “Replacement Note” indicating that •
the 240W (661-4422) and 250W (661-4478) power supplies are interchangeable.
21 March 2008
The following chapters have been updated:
Troubleshooting-->Glass Panel-->A new procedure has been added describing how to •
troubleshoot a system that has contamination on the inside surface of the glass panel.
19 December 2007
The following chapters have been updated:
Take Apart
Logic Board-->Removing the Logic Board-->Step 5-->Added a “Note” indicating which •
service parts should be transferred to the replacement logic board prior to removing the
bad logic board.
Troubleshooting--> No Video, Boot Chime Heard-->Step 6 was updated and Step 7 which •
made reference to a front LED was removed. The iMac Mid 2007 models do not have an LED
on the front bezel.
iMac (24-inch Mid 2007) Take Apart — Manual Updates 7
10 December 2007
The following chapters have been updated:
Take Apart
The AC Power Inlet take apart procedure was removed from the service manual. The AC •
Power inlet is not available as a service part. It is part of the rear housing assembly. Order the
rear housing if you require a new AC Power Inlet.
Troubleshooting
Symptom Charts-->Video• -->Added the iMac Graphics Firmware Update 1.0. to the existing
sections mentioning “Make sure all software updates have been applied to the computer.”
Whenever the video card on an iMac (24-inch Mid 2007) or iMac (20-inch Mid 2007)
computer is replaced, ensure that the iMac Graphics Firmware Update 1.0 has been installed
before returning the computer to the customer.
7 November 2007
The Take Apart and Troubleshooting chapters in the iMac (20-inch Mid 2007) and iMac (24-inch
Mid 2007) Service Manuals have been updated in the following manner:
Take Apart
DC Power Supply-->Replacing the AC/DC Power Supply-->Step 1: Added “Note: There are two •
types of power supplies and each requires a specic pressure wall. Each power supply comes
with the correct pressure wall.”
Hard Drive• -->Replacing the Hard Drive-->Step 2: Added “Orient the hard drive with the
circuit board side of the drive facing up.”
Right Speaker-->Removing the Right Speaker: Graphic of screw location corrected.
Troubleshooting
Symptom Charts-->Display-->Added symptom “Black and white splotches on the LCD panel •
after it runs for awhile.”
Symptom Charts-->Video, No Power, Display, System Shuts Down-->Added step to all the •
sections noted mentioning: “Make sure all software updates have been applied to the
computer. Refer to KBase article 303903, “Intel-based iMac: Installing available updates” or
to the Apple Downloads “iMac Software Update 1.2 ( Tiger)” or “iMac Software Update 1.3
(Leopard).”
Symptom Charts-->Speakers: Can’t hear sound from the speakers-->Step 4-->Verify that the •
speaker cable connector is securely attached to the “logic board” not the “audio board.”
iMac (24-inch Mid 2007) Take Apart — Manual Updates 8
Service Source
Take Apart
iMac (24-inch Mid 2007)
© 2007 Apple Inc. All rights reserved.
Product View
General Information
Opening the Computer
Important: • The glass panel on the iMac should only be removed by Apple authorized
technicians. Removing the glass panel requires special tools and they must be used to
replace any module other than the SO-DIMMs.
Read and follow all of the handling and cleaning recommendations to prevent damaging •
the glass and LCD panel.
Follow ESD precautions when the front bezel and the LCD display are removed.•
Note About Images in This Manual
Small dierences in appearance between the images pictured and the actual computer you are
servicing may exist, however the steps and sequence are the same unless otherwise noted.
iMac (24-inch Mid 2007) Take Apart — General Information 10
Serial Number Location
On the bottom of your iMac stand, you’ll nd a label with the serial number printed on it.
To conrm the conguration from the Apple menu, choose About This Mac. The Processor listing
will show the speed of the processor followed by the processor type.
The iMac (24-inch, 2007) has several features that distinguish it from earlier iMac models:
2.4 GHz Intel Core 2 Duo processor or 2.8 GHz Core 2 Extreme•
ATI Radeon HD 2600 Pro with 256 MB GDRR3 VRAM•
24-inch widescreen at panel display (1920x1200 native resolution)•
320 GB hard disk (for the 2.0 GHz) or: 500 GB (for the 2.8 GHz) with CTO options of 500 •
GB, 750 GB or 1TB.
1 GB (1x 1GB) 667 MHz with support up to 4.0 GB system memory•
Built-in stereo speakers with internal 24-watt digital amplier•
New Apple keyboard, wired (CTO option: new Apple Wireless Keyboard) •
iMac (24-inch Mid 2007) Take Apart — General Information 11
General Tools
The following tools are required to service the computer:
ESD-safe workstation and mat•
Soft, clean towel or cloth (to protect the display and removed parts from scratches)•
Black stick (or other non-conductive nylon or plastic at-blade tool)•
Phillips #2 screwdriver•
Torx T6 screwdriver (magnetized)•
Torx T8 screwdriver (magnetized)•
Torx T10 screwdriver (magnetized)•
Flat-blade screwdriver•
Isopropyl alcohol•
ESD bags•
Required Special Tools
Special tools are required to remove, handle, and clean the glass panel such as the following.
These are available as a starter kit too. View the tools in the Glass Panel take apart chapter.
922-8252 Suction cups, Pkg. of 2 1.
922-8261 Sticky silicone roller (6-inch) to clean the glass panel 2.
922-8262 Sticky sheet pads to clean the silicone roller 3.
922-8263 Polishing cloths, clean, anti-static, optical grade micro ber “terry” style cloth4.
922-8253 Gloves, lint-free, anti-static, Pkg. of 2 5.
922-8259 Microfoam bag to store the glass panel, Pkg. of 56.
922-8258 ESD bags, 24x20, Pkg. of 5, to store the LCD panel. 7. Note: To prevent the buildup
of static charges which may attract dust particles to the surface of the display, store the LCD
panel in an anti-static bag whenever it has been removed from the system.
iKlear Apple Polish or Brillianize anti-static spray cleaning solution. A list of where iKlear/8.
Brillianize can be obtained is listed in the Glass Panel chapter of the service manuals. Note:
IPA (isopropyl alcohol) can be used to clean the glass if you are unable to source iKlear or
Brillianize.
iMac (24-inch Mid 2007) Take Apart — General Information 12
Cleaning Tools Starter Kit
The following tools are oered in the starter kit (076-1277).
Suction cups, one pair•
Sticky silicone roller (6-inch) to clean the glass panel •
Sticky sheets to clean the silicone roller, 2 pads•
Polishing cloths, clean, anti-static, microber “terry” style cloth (5 cloths)•
Gloves, lint-free, anti-static, two pairs •
Microfoam bag to store the glass panel (5 bags)•
ESD bag for LCD display storage, (5 bags)•
Removing the Glass Panel
Rubber suction cups (922-8252) and anti-static gloves (922-8253) are required to remove the
glass panel. Lift the glass straight up and o the bezel.
iMac (24-inch Mid 2007) Take Apart — General Information 13
View of the Main Modules
View of the Rear Housing and Cables
Inside the rear housing you can see the chassis, AC inlet lter, the mechanism, the hard drive fan,
the AC/DC/power cable, the microphone cable, the camera cable, and the antennas.
iMac (24-inch Mid 2007) Take Apart — General Information 14
Back View
The input/output ports are located on the bottom left side on the back of the computer. The
power on button is located on the bottom right side on the back of the computer.
iMac (24-inch Mid 2007) Take Apart — General Information 15
I/O Ports
The input/output ports from left to right are:
Headphone out/optical digital audio out port•
Audio in/optical digital audio in port•
USB 2.0 ports (3)•
FireWire 400 port•
Firewire 800 port•
Ethernet (10/100/1000 Base-T) port•
Mini-DVI port•
iMac (24-inch Mid 2007) Take Apart — General Information 16
Cleaning and Handling the Glass Panel
The iMac (24-inch Mid 2007) model has a glass panel that attaches to the outside of the front •
bezel.
The glass panel is not tempered and will break into sharp pieces if mishandled. A scratched •
or broken glass panel is not covered under warranty.
Removing the glass panel requires special tools such as lint-free gloves, rubber suction cups, •
microfoam storage bags, and the iKlear cleaning solution.
The glass panel must be removed prior to replacing any module other than the SO-•
DIMM’s.
To prevent contamination, handle the glass panel only by the edges while wearing lint-free •
gloves.
The complete list of tools and resources can be found in the Glass Panel take apart chapter.
iMac (24-inch Mid 2007) Take Apart — General Information 17
Do’s and Don’ts
DO
Handle glass panel using lint free gloves.•
Use only a sticky silicone roller to clean the inside surface of the glass and the LCD panel.•
Use iKlear to clean • ONLY the outside surface of the glass panel.
Place the glass panel into a clean protective microfoam bag when it is not installed on an •
iMac.
Store the glass panel in a safe area where it will not be broken or damaged.•
Store the LCD panel in an anti-static bag to prevent the buildup of static charges which may •
attract dust particles to the display’s surface.
Store the silicone roller and sticky paper within a temperature range of 39-104 degrees F •
(5-40C).
Wash the silicone roller in warm soapy water or wipe with isopropyl alcohol if the roller is no •
longer tacky. Replace the silicone roller if the tackiness does not return.
DO NOT
Touch the inside of the glass with bare hands or dirty gloves. Fingerprints will be dicult to •
remove.
Clean the inside surface of the glass or the LCD with iKlear or other cleaning solutions.•
Place the glass panel onto a work surface where it may collect dust and other contaminants •
unless it has rst been placed into its protective microfoam bag.
Use single wipe iKlear packets or other cleaning solutions to clean the glass.•
Handling a Broken Glass Panel
The glass panel is not tempered and will break into sharp pieces if mishandled.
If the glass is broken it must be carefully removed from the iMac to prevent irreparable damage
to the front surface of the LCD. If the front surface of the LCD is scratched by the broken glass the
LCD may need to be replaced.
Do not handle broken glass unless you are wearing protective cut-resistant gloves. The lint-free
gloves used to prevent contamination of the glass panel are not suitable for handling broken
glass.
Use a broom and dust pan to sweep up as much of the broken glass as possible. Glass fragments
may have travelled several feet from the location of the glass panel so be sure to thoroughly
clean the entire area. Use a vacuum to remove the smaller fragments not picked up by the
broom
iMac (24-inch Mid 2007) Take Apart — General Information 18
Safety
WARNING: HIGH VOLTAGE: The highlighted module below is an AC/DC power supply that
poses a shock hazard. When the computer is under power, be aware that the power supply
contains high voltages that pose a potential hazard to your personal safety. Never work on or
near the power supply with the unit powered on; and as a further precaution, always make sure
the unit is unplugged when working on it with the front bezel removed. A white, shock- hazard
warning symbol is silk-screened in the middle of the power supply module.
WARNING:
Text or photographs marked by this symbol indicate that a potential hazard to your personal
safety exists from a high voltage source.
The AC/DC power supply board is a high-voltage source with the unit under power, and remains
powered up whenever the system is plugged in, whether or not the system is turned on. Use
extreme caution when troubleshooting the system with the front bezel removed.
Disconnect power to the system before performing maintenan• ce.
Disconnect ESD wrist straps when working on a plugged in system. •
Don’t work alone. In the event• of an electrical shock, it is important to have another
individual present who can provide assistance.
Keep one hand in your pocket when working on any • computer that is plugged in. This
will help ensure that your body does not provide a path to ground in the event that you
accidentally make contact with the line voltage.
Don’t wear jewelry, watches, necklaces, or other metallic articles that could present a risk •
if they accidentally make contact with the power supply circuitry.
iMac (24-inch Mid 2007) Take Apart — General Information 19
EMI Shielding
The rear cover of the computer is wrapped in EMI shielding that is easily torn and damaged. To
maintain a properly shielded unit, you must repair all accidental tears and cracks to the shielding
by covering them with EMI tape that can be ordered from Apple service.
iMac (24-inch Mid 2007) Take Apart — General Information 20
Access Door
Tools
Phillips #2 screwdriver•
ESD-safe workstation and mat•
Soft , clean towel or cloth•
Preliminary Steps
Before you begin, place the computer face down on a clean, soft, lint-free cloth so that the
bottom is facing you.
Part Location
iMac (24-inch Mid 2007) Take Apart — Access Door 21
Removing the Access Door
Disconnect all cables and the power cord from your iMac.1.
Place a soft, clean towel or cloth on your work surface. Hold the side of the iMac and lay it 2.
down so that the screen is against the surface and the bottom is facing you.
Raise the stand and use a Phillips #2 screwdriver to loosen the captive screw on the memory 3.
access door by turning it counterclockwise.
Important: When removing and installing the RAM access door it is important that you use
the correct size Phillips screwdriver. Using one that is too small or too big may damage the
screw head, and/or screwdriver. Before trying to remove the RAM access door screw, make
sure that the screwdriver tip is in good shape without rounded edges and that it rmly seats
into the screw head. If the screwdriver doesn’t seat well then do not use it.
If the RAM access door screw head has been severely damaged and cannot be removed with
a Phillips #2 screwdriver you may be able to use a small jewelers at blade screwdriver to
engage the screw head and carefully remove it. In some cases it may be necessary to use a
screw extractor tool. When using a screw extractor make sure that no metal shavings from
the damaged screw drop inside the system. For more information on screw extractors and
how to use them type ‘screw extractor’ into your favorite internet search engine.
Remove the access door.4.
Replacing the Access Door
Position the computer face down on a clean, soft, lint-free cloth so that the bottom is facing 1.
you.
Position the access door on the rear housing over the memory compartment. 2.
Use a Phillips #2 screwdriver to tighten the captive screw.3.
Important4. : To ensure proper cooling the iMac should not be operated without the memory
access door installed.
iMac (24-inch Mid 2007) Take Apart — Access Door 22
Memory
This computer comes with a minimum of 1GB of 667 MHz PC2-5300 Double Data Rate 2 (DDR2)
Small Outline Dual Inline Memory Modules (SO-DIMMs). It has two slots that can accept DIMMs. A
1 GB, or 2 GB memory module may be installed for a maximum of 4 GB of memory.
Tools
ESD mat •
Soft , clean towel or cloth•
Preliminary Steps
Before you begin, remove the access door
.
Warning: Always shut down the computer and remove the power cord before installing memory.
Do not attempt to install memory in the computer while it is plugged in.
Part Location
iMac (24-inch Mid 2007) Take Apart — Memory 23
Removing the Memory
Shut down the computer, and disconnect all cables including the power cord.1.
Holding the sides of the computer, lay it face down on a soft, clean cloth so the stand is 2.
facing you.
After removing the access door, touch the metal stand or bezel to discharge any static 3.
electricity from your body.
Important: Always discharge static before you touch any parts such as the memory board.
To avoid generating static electricity, do not walk around the room until you have nished
replacing the memory.
Untuck the tab in the memory compartment. If you are replacing a memory module, untuck 4.
the tab and pull it to eject the installed memory module.
Set the memory module(s) aside.5.
iMac (24-inch Mid 2007) Take Apart — Memory 24
Replacing the Memory
With the computer face down, orient the notch on the DIMM with the notch in the memory 1.
slot. In this case, the notch is on the left.
With your ngers, press the DIMM fully into the slot until you hear a click. Repeat for the 2.
other DIMM slot.
Fold the black tab over each DIMM. 3.
Replace the memory access door.4.
Use a Phillips #2 screwdriver to tighten the captive screw on the memory access door.5.
Make sure the computer recognizes the new memory by opening System Proler, clicking 6.
More Info, and clicking Memory.
iMac (24-inch Mid 2007) Take Apart — Memory 25
Glass Panel
Tools
This procedure requires the following tools, which are oered individually or as part of the
starter kit, 076-1277.
Suction cups (922-8252)•
Sticky silicone roller (6-inch) to clean the glass panel (922-8261)•
Sticky sheets to clean the silicone roller (922-8262)•
Polishing cloths, clean, anti-static, optical grade micro ber “terry” style cloth (922-8263)•
iKlear Apple Polish or Brillianize anti-static spray cleaning solution for the outside of the glass •
Isopropyl alcohol (IPA) to clean the inside of the glass •
Gloves, lint-free, anti-static (922-8253)•
Microfoam bag to store the glass panel (922-8259) •
ESD bag for LCD display storage (922-8258)•
Note: Tools without part numbers can be sourced directly from the vendor. Refer to “Cleaning
Tool Resources” at the end of this chapter.
Part Location
iMac (24-inch Mid 2007) Take Apart — Glass Panel 26
Cleaning and Handling of the Glass Panel
The iMac (24-inch Mid 2007) model has a glass panel that attaches to the outside of the front
bezel. The glass panel is not tempered and will break into sharp pieces if mishandled. A scratched
or broken glass panel is not covered under warranty. Removing the glass panel requires special
tools such as lint-free gloves, rubber suction cups, microfoam storage bags, and the iKlear
cleaning solution. The glass panel must be removed prior to replacing any module other
than the SO-DIMM’s. To prevent contamination, the glass panel must only be handled by the
edges while wearing lint-free gloves.
Isopropyl Alcohol (IPA)
Cleaning the Glass
In the unfortunate event that gloves are not worn, and ngerprints and oil smudges are visible
on the inside of the glass, cleaning should be done using a lint free cloth and IPA. Spray a small
amount of IPA onto a CLEAN lint free cloth to avoid introducing any other contaminants. Gently
wipe the area and allow the glass to dry. Note: The silicone rollers are only eective in removing
dust and other particles. If ngerprints or oil smudges are not removed prior to using the roller,
the silicone roller will transfer the ngerprints and oil smudges onto the glass.
Cleaning the Silicone Roller
Clean the silicone roller by wiping it down with IPA (Isopropyl Alcohol) or washing it with warm
soapy water.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 27
DO
Handle glass panel using lint free gloves.•
Use only a sticky silicone roller to clean the inside surface of the glass and the LCD panel.•
Use iKlear to clean • ONLY the outside surface of the glass panel.
Use Isopropyl alcohol to clean • ONLY the inside surface of the glass.
Place the glass panel into a clean protective microfoam bag when it is not installed on an •
iMac.
Store the glass panel in a safe area where it will not be broken or damaged.•
Store the LCD panel in an anti-static bag to prevent the buildup of static charges which may •
attract dust particles to the display’s surface.
Store the silicone roller and sticky paper within a temperature range of 39-104 degrees F •
(5-40C).
Wash the silicone roller in warm soapy water or clean it by wiping it down with isopropyl •
alcohol if the roller is no longer tacky. Replace the silicone roller if the tackiness does not
return.
DO NOT
Touch the inside of the glass with bare hands or dirty gloves. Fingerprints will be very •
dicult to remove.
Clean the inside surface of the glass or the LCD with iKlear or other cleaning solutions.•
Place the glass panel onto a work surface where it may collect dust and other contaminants •
unless it has rst been placed into its protective microfoam bag.
Use single wipe iKlear packets or other cleaning solutions to clean the glass.•
Metal Alignment Pins on the Glass Panel
There are four alignment pins at the top of the glass panel near the camera, one pin at the
bottom near the IR remote sensor, and a pin on the left and right side of the glass. Important:
If the glass is removed from the bezel at an angle, the metal alignment pins may bend, causing
scratches on the inside of the glass and possibly requiring replacement of the glass panel.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 28
Magnets on the Front Bezel
The glass panel has a thin silver ferrous metal band axed to the perimeter which is magnetically
attracted to the fourteen magnets (circled below) which are attached to the front bezel. These
magnets hold the glass panel in place. Suction cups are used to pull the glass panel away from
the magnets on the front bezel. .
iMac (24-inch Mid 2007) Take Apart — Glass Panel 29
Removing the Glass Panel
Apple 1. strongly recommends wearing clean lint-free gloves whenever handling the glass
panel. The gloves protect the glass panel from body oils, dirt, and other contaminants. Put on
a pair of clean gloves with the rubberized-side of the gloves on the palm side of your hand.
Position the computer on the rear cover, on a soft protective lint-free surface, with the stand 2.
facing you
Clean o the suction cups, making sure they are free of contaminants. It may be necessary to 3.
wash the suction cups with a mild liquid soap in order to remove the residual release agents
applied during manufacturing.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 30
4. Gently press the suction cups in opposite corners on the glass panel, as shown. Important:
Make sure the suction cups are rmly attached to the glass before lifting the glass.
Hold onto the suction cups and gently lift the glass panel 5. straight up and o the bezel.
Set the glass down on the microfoam bag or clean lint-free surface and remove the suction 6.
cups. Squeeze the base of each suction cup to release them from the glass panel.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 31
Touching only the edges of the glass, slide the glass panel into the microfoam static-free 7.
bag. Set the glass aside in a location where it won’t get damaged. The bag will help minimize
contamination of the glass.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 32
Replacing the Glass Panel
Put on a pair of clean gloves with the rubberized-side of the gloves on the palm side of your 1.
hand.
Install the LCD display panel onto the computer if it was removed.2.
Replace the font bezel if it was removed, connect the microphone cable and replace the 3.
bezel screws.
Locate the sticky silicone roller and the dust removal pad. Remove the protective covering 4.
on the silicone roller and peel the protective cover o the dust removal pad.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 33
Holding the sticky paper with your free hand, clean the silicone roller on the sticky paper 5.
by rolling the roller back and forth once or twice on the sticky paper. If the sticky paper has
been used multiple times and looks dirty, use a new piece of sticky paper. Note: Wash the
silicone roller in warm soapy water if the roller is no longer tacky. Replace the silicone roller if
the tackiness does not return.
Set the roller aside on its clean protective cover while you prepare the glass and computer.6.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 34
REMINDER: WEAR CLEAN GLOVES AND ONLY HANDLE THE GLASS BY THE EDGES.7.
Stand the computer upright. 8. Note: Less dust particles will settle on the LCD panel with the
computer in the vertical position.
Roll the sticky silicone roller over the LCD panel to remove any particles. 9. Note: A larger
silicone roller was used for demonstration purposes, however; the 6-inch silicone roller from
Apple service will suce.
Remove the glass panel from the microfoam bag. Place the glass on the bag with the inside 10.
surface of the glass (side with metal pins) facing up.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 35
Clean the 11. INSIDE of the glass panel with the clean silicone roller. Gently roll the clean silicone
roller over the inside of the glass. Note: If ngerprints and oils are on the inside of the
glass, clean the inside rst with isopropyl alcohol.
Holding the glass by the edges, carefully line up the metal pins on the inside of the glass 12.
panel with the holes at the top of the front bezel and the hole at the bottom of the bezel.
Gently lower the glass panel onto the bezel. The magnets on the front bezel will pull panel
and hold the glass panel in place.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 36
13 . Clean the outside of the glass panel with a clean microber cleaning cloth. If necessary,
spray a small amount (two pumps) of iKlear polish on the outside of the glass panel. Wipe
the glass until the solution completely disappears and there is no longer any residue or haze.
CAUTION: Do not use single wipe iKlear packets or other cleaning solutions to clean the
glass.
Once the glass has been cleaned and polished, visually inspect the glass for any remaining 14.
dust, ngerprints, or a hazy residue. If there are contaminates trapped between the LCD
panel and the glass panel repeat the cleaning procedure described in this section before
returning the system to the customer.
Replace the memory access door.15 .
iMac (24-inch Mid 2007) Take Apart — Glass Panel 37
Installing a Replacement Glass Panel
Stand the computer upright. 1. Note: Fewer dust particles will settle on the LCD panel with the
computer in the vertical position.
Roll the sticky silicone roller over the LCD panel to remove any particles. 2.
Remove the new glass panel from the service packaging. 3. Note: The new panels have a
removable lm protecting the glass on both sides.
Place the glass on a clean microfoam bag with the inside of the glass facing up (the side 4.
with metal pins.) Wearing gloves, carefully remove the protective lm from the inside surface
of the glass.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 38
Clean the INSIDE surface of the glass panel with the silicone roller. Gently roll the clean 5.
silicone roller over the inside surface of the glass. Note: If ngerprints and oils are on the
inside of the glass, clean the inside rst with isopropyl alcohol.
Holding the glass by the edges, carefully line up the metal pins on the inside of the glass 6.
panel with the holes at the top of the front bezel and the hole at the bottom of the bezel.
Gently lower the glass panel onto the bezel. The magnets on the front bezel will pull and
hold the glass panel in place.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 39
Peel the protective lm from the outside surface of the glass panel. If the glass panel pulls 7.
away from the front bezel, gently hold it in place while removing the protective lm.
8. Clean the outside of the glass panel with a clean microber cleaning cloth. If necessary,
spray a small amount (two pumps) of iKlear polish on the outside of the glass panel. Wipe
the glass until the solution completely disappears and there is no longer any residue or haze.
Once the glass has been cleaned and polished, visually inspect the glass for any remaining 9.
dust, ngerprints, or a hazy residue. If there are contaminates trapped between the LCD
panel and the glass panel repeat the cleaning procedure described in this section before
returning the system to the customer.
Replace the memory access door.10.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 40
Cleaning Tools Starter Kit
The following tools are oered in the starter kit (076-1277).
Suction cups, Qty. of one (pair)•
Sticky silicone roller (6-inch) to clean the glass panel, Qty. of one •
Sticky sheets to clean the silicone roller, Qty of 2 pads•
Polishing cloths, clean, anti-static, micro ber “terry” style cloth, Qty. of one (5 cloths)•
Gloves, lint-free, anti-static, Qty. of two (pair) •
Microfoam bag to store the glass panel, Qty. of one (5 bags) •
ESD bag for LCD display storage, Qty. of one (5 bags)•
Cleaning Tool Resources
MCM Portal (http://www.mcmb2b.com/appleasp)1.
iKlear distributors: (http://www/iklearscreen.com/iKlear.aspx)2.
iKlear International dealer listing• : http://meridrew.com/international.html
iKlear US/Canada dealer listing:• http://meridrew.com/search/search.php
Japan: Pleiades Digital Communications, Inc.www.pleiadesdesigns.co.jp3.
Brillianize is an alternative cleaning solution http://www.brillianize.com/4.
Brillianize products are listed here: http://www.brillianize.com/products2.html•
Brillianize dealer locator: http://www.brillianize.com/brillianize_dealer_locator.htm•
Cleaning Cloth5.
The micro ber “terry” style cleaning cloth can be purchased directly from iKlear or •
Brillianze
iMac (24-inch Mid 2007) Take Apart — Glass Panel 41
Ultra Violet Inspection Lamp
An optional tool used to detect dust and contamination is the ultra violet inspection light. The
Bayco UV Inspection Lamp, 13 watt twin tube plug-in model shown below is one example of a
low-cost model that works well. In the US service providers can order the lamp at: http://www.
amazon.com Other sources can be found using Google.
The UV inspection lamp can be used to highlight contaminates that may not be easily viewed
under normal lighting conditions. Dim or turn o the normal task lighting and turn on the UV
inspection lamp. Pass the UV inspection lamp over the glass panel and note any dust particles or
contaminates that would be objectionable to the customer. Wipe the microber cloth over the
area where the contaminates have been observed to determine whether they are on the outside
or inside surface of the glass.
iMac (24-inch Mid 2007) Take Apart — Glass Panel 42
Front Bezel
Tools
This procedure requires the following tools:
Torx T8 screwdriver•
Soft, clean towel or cloth•
Preliminary Steps
Before you begin, remove the:
Access door•
Glass panel •
Part Location
iMac (24-inch Mid 2007) Take Apart — Front Bezel 43
Removing the Front Bezel
Place the computer on a soft protective lint-free surface such as a very clean ESD mat to 1.
avoid damaging the nish on the stand or rear housing.
Position the computer on the rear cover with the stand facing you. 2.
3. Remove the twelve screws around the bezel. Replacement Note: Refer to the photo when
replacing the screws.
30mm
922-8177
19mm
922-8176
15mm
922-8178
15mm
15mm
15mm
19mm
15mm
30mm
15mm
30mm
15mm
19mm
19mm
19mm
iMac (24-inch Mid 2007) Take Apart — Front Bezel 44
With the upper corners loosened, lift up—but do not remove—the bezel.4.
Notice the connected microphone cable at the top of the bezel. Without straining the cable, 5.
hold the bezel up, and disconnect the microphone cable from the cable extension.
iMac (24-inch Mid 2007) Take Apart — Front Bezel 45
Continue lifting the front bezel toward you and o the rear housing.6.
iMac (24-inch Mid 2007) Take Apart — Front Bezel 46
Replacing the Front Bezel
Place the computer on a soft protective lint-free surface such as a very clean ESD mat to 1.
avoid damaging the nish on the stand or rear housing.
Position the computer on the rear cover with the stand facing you. 2.
Position the bottom of the front bezel over the bottom edge of the rear cover. 3.
Lower the front bezel, connect the microphone cable to the extension cable and tuck the 4.
cable into the computer housing. Carefully lower the bezel onto the computer, and make
sure the cable cannot be pinched.
iMac (24-inch Mid 2007) Take Apart — Front Bezel 47
Replace the twelve screws around the bezel. 5. The two longer screws (30mm) attach to the
bezel along the bottom of the panel, on the right and left side of the Apple logo. The four
medium length screws (19mm) attach above and below the optical drive on the right side,
and on either side of the 30mm screws. The six shorter screws (15mm) attach around the top,
and left side.
30mm
19mm
15mm
15mm
15mm
15mm 15mm
30mm
15mm 15mm
30mm
19mm19mm
19mm
19mm
Clean and replace the glass panel6. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door7. .
iMac (24-inch Mid 2007) Take Apart — Front Bezel 48
Camera Board
Tools
Torx T8 screwdriver •
ESD mat, soft , clean towel or cloth•
Preliminary Steps
Before you begin, remove the:
Access door•
Glass panel •
Front beze• l
Part Location
iMac (24-inch Mid 2007) Take Apart — Camera Board 49
922-8171
Removing the Camera Board
The camera board bracket and cable are visible after you remove the front bezel o the 1.
computer.
2. Remove two T8 screws on the camera bracket.
Lift the camera bracket out of the rear housing enough to access the Kapton tape securing 3.
the camera cable.
Unwrap the Kapton tape covering the camera cable and connector. Disconnect the camera 4.
cable from the camera board. Set the camera board and attached bracket aside.
iMac (24-inch Mid 2007) Take Apart — Camera Board 50
922-8171
Replacing the Camera Board
Connect the camera cable to the camera board. Reapply the kapton tape over the cable and 1.
connector.
Lower the camera bracket onto the black posts on the rear cover.2.
3. Replace the two T8 screws.
Replace the front bezel4. .
Clean and replace the glass panel5. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door6. .
iMac (24-inch Mid 2007) Take Apart — Camera Board 51
Battery
Tools
The only tool required for this procedure is a black stick (or other nonconductive plastic or nylon
tool).
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
Part Location
iMac (24-inch Mid 2007) Take Apart — Battery 52
Removing the Battery
Use a black stick to pry out the battery from the battery socket on the logic board.
iMac (24-inch Mid 2007) Take Apart — Battery 53
Replacing the Battery
Make sure the battery socket is open and free of dust.1.
Press the battery into the socket. Make sure the side with the engraved markings (+ side) is 2.
facing up .
Replace the front bezel3. .
Clean and replace the glass panel4. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door5. .
iMac (24-inch Mid 2007) Take Apart — Battery 54
IR (Infrared) Board
Tools
The only tool required for this procedure is a Torx T6 screwdriver.
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
Part Location
iMac (24-inch Mid 2007) Take Apart — IR (Infrared) Board 55
922-8256
Removing the IR Board
1. Remove the two T6 screws from IR board and disconnect the IR cable from the IR board
Lift the IR board from the heatsink.2.
iMac (24-inch Mid 2007) Take Apart — IR (Infrared) Board 56
Replacing the IR Board
Connect the IR cable to the IR board.1.
Install the IR board and T6 screws.2.
If removed, connect the IR cable to the logic board. 3.
Tuck the IR cable under the black cable guide.4.
Replace the front bezel5. .
Clean and replace the glass panel6. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door7. .
iMac (24-inch Mid 2007) Take Apart — IR (Infrared) Board 57
AirPort Extreme Card
Tools
Torx T6 screwdriver•
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
Part Location
iMac (24-inch Mid 2007) Take Apart — AirPort Extreme Card 58
922-7010
Removing the AirPort Extreme Card
1. Using a T6 torx screwdriver, remove the one 5-mm long screw and disconnect the two
antenna cables from the AirPort Extreme card. Note: The antenna cables and connectors are
very delicate and should be carefully removed by pulling on the antenna cable connectors,
not on the cables.
1.
Holding the card by the edges, pull the AirPort Extreme card out of the slot.2.
iMac (24-inch Mid 2007) Take Apart — AirPort Extreme Card 59
Replacing the AirPort Extreme Card
Align the AirPort Extreme card with the slot on the logic board. Insert the board into the slot.1.
922-7010
Connect the antenna cables to the connectors on the AirPort Extreme card. 2.
Note: The antenna cables might include an “L” or “R” tab near the connector end; however,
you can disregard that because the cable position can be swapped without any change in
performance. Replace the T6 screw.
iMac (24-inch Mid 2007) Take Apart — AirPort Extreme Card 60
Replace the front bezel3. .
Clean and replace the glass panel4. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door5. .
iMac (24-inch Mid 2007) Take Apart — AirPort Extreme Card 61
Bluetooth Card
Tools
Torx T6 screwdriver•
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
Part Location
iMac (24-inch Mid 2007) Take Apart — Bluetooth Card 62
922-7010
Removing the Bluetooth Card
1. Using a T6 torx screwdriver, remove the two 5-mm long screws from the lower left and
upper right opposite corners of the Bluetooth card.
Disconnect the Bluetooth antenna from the left side of the card. 2. Note: The antenna cable
and connector are very delicate and should be carefully removed by pulling on the antenna
cable connector, not on the cable.
iMac (24-inch Mid 2007) Take Apart — Bluetooth Card 63
922-7010
Replacing the Bluetooth Card
1. Press the Bluetooth card onto the logic board connector.
Connect the Bluetooth antenna to the Bluetooth card. 2.
Replace the two T6 Bluetooth card screws.3.
Replace the front bezel4. .
Clean and replace the glass panel5. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door6. .
iMac (24-inch Mid 2007) Take Apart — Bluetooth Card 64
LCD Temp Sensor and Cable
Tools
A black stick or equivalent tool to peel the tape and insulator o the panel•
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
LCD Panel•
Part Location
iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 65
Removing the Display Temp Sensor and Sensor Cable
Peel back any kapton tape securing the sensor cable to the panel.1.
Carefully peel back the black insulator on the right side of the panel to access the entire 2.
sensor cable.
On the top right corner of the panel, peel back the mylar tape and foam gasket covering the 3.
temp sensor. Disconnect the display temp sensor cable from the sensor. Note: Use a black
stick to pry the sensor from the top of panel.
iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 66
Replacing the Temp Sensor Cable
Connect the LCD temp sensor cable to the sensor at the top of the panel. Place the foam 1.
gasket on top of the sensor.
Route the cable along the right side on the back of the panel. Press the black sticky insulator 2.
over the top of the cable and the sensor. Replace any clear tape holding the cable in place
on the panel..
iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 67
Connect the inverter cable to the inverter board on the rear of the display panel. Replace the 3.
black mylar tape over the inverter cable connector.
Make sure the other end of the inverter cable is connected to the power supply.4.
922-7010
Lower the LCD panel into the computer assembly.5.
6. Connect the LVDS cable to the logic board. Replace the two T6 screws.
iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 68
Connect the display temp sensor cable to the left side of the logic board.7.
922-8172
Install 8. the eight mounting screws.
iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 69
Replace the front bezel9. .
Clean and replace the glass panel10. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door11 . .
iMac (24-inch Mid 2007) Take Apart — LCD Temp Sensor and Cable 70
Speaker, Left
Tools
Torx T10 screwdriver•
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
LCD Panel•
Part Location
iMac (24-inch Mid 2007) Take Apart — Speaker, Left 71
922-8249
Removing the Left Speaker
1. Using a T10 torx screwdriver, remove the long screw from the left speaker.
Disconnect the speaker from the audio board. The speaker cable runs under the black plastic 2.
cable guide (above the memory slot) and connects to the audio board on the right side of
the logic board.
iMac (24-inch Mid 2007) Take Apart — Speaker, Left 72
Lift the speaker out of the rear housing.3.
iMac (24-inch Mid 2007) Take Apart — Speaker, Left 73
922-8249
Replacing the Left Speaker
1. Install the speaker in the rear housing. Secure the left speaker with the longer mounting
screws.
Route the speaker cable under the cable clip on the CPU fan and under the long cable guide 2.
above the memory slots. Connect the speaker cable to the audio board on the right side.
iMac (24-inch Mid 2007) Take Apart — Speaker, Left 74
Replace the display panel.3.
Replace the front bezel4. .
Clean and replace the glass panel5. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door6. .
iMac (24-inch Mid 2007) Take Apart — Speaker, Left 75
LCD Display Panel
Tools
Torx T6 screwdriver•
Torx T8 screwdriver•
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
Important: To prevent the buildup of static charges which may attract dust particles to the
surface of the display, store the LCD panel in an anti-static bag whenever it has been removed
from the system.
Part Location
iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 76
922-7010
Removing the Display Panel
Place the computer with the display face up.1.
2. Remove the two T6 screws from the LVDS connector. Pull the black tab on the cable, or grasp
the connector by the edges to disconnect it from the logic board.
3. Disconnect the display sensor cable from the left side of the logic board.
iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 77
922-8172
4. Remove the eight T8 screws from the sides of the panel frame.
Grasp the LCD panel at the bottom edge, and tilt up the panel. Peel back the black tape 5.
covering the inverter cable connector on the back of the LCD panel. Pull the connector
straight out, toward the power supply. If you are replacing the cable, disconnect the other
end from the power supply. Lift the LCD panel o the rear housing.
Important: To prevent the buildup of static charges which may attract dust particles to
the surface of the display, store the LCD panel in an anti-static bag whenever it has been
removed from the system.
iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 78
Replacement Note6. : If replacing the display panel, disconnect the LVDS cable from the
panel before returning the module to Apple. Transfer the LVDS cable and the inverter cable
(previous step) to the replacement panel. A replacement panel includes the display panel
mounting brackets, the mylar tape, the foam strips and gaskets, the display temp sensor, and
the display temp sensor cable.
On the right side of the panel is the display temp sensor (under the foam gasket at the top) 7.
and the display temp sensor cable. These are included with the LCD panel, but they are also
oered separately as service parts.
iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 79
Replacing the Display Panel
Connect the LVDS cable to the rear of the display panel.1.
Connect the inverter cable to the inverter board on the rear of the display panel. Replace the 2.
black mylar tape over the inverter cable connector.
Make sure the other end of the inverter cable is connected to the power supply.3.
Make sure the display temp sensor and the temp sensor cable are connected at the top of 4.
the display panel and that the foam gasket is covering the sensor.
Lower the LCD panel into the computer assembly.5.
6. Connect the LVDS cable to the logic board. Replace the two T6 screws.
922-7010
iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 80
Connect the display temp sensor cable to the left side of the logic board.7.
922-8172
Install 8. the eight mounting screws.
iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 81
Replace the front bezel9. .
Clean and replace the glass panel10. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door11 . .
iMac (24-inch Mid 2007) Take Apart — LCD Display Panel 82
Ambient Temperature Sensor Cable
Tools
No tools are required for this procedure.
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
LCD Panel•
Speaker, Lef• t
Part Location
iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor Cable 83
Removing the Ambient Temperature Sensor Cable
Disconnect the ambient temp sensor cable and the fan cable from the logic board. Lift the 1.
fan out of the system.
Disconnect the cable from the sensor board on the speaker.2.
iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor Cable 84
Replacing the Ambient Temperature Sensor Cable
Connect the cable to the sensor board on the speaker.1.
Lower the fan into the rear housing. Press the foam gasket into place across the top of the 2.
fan.
iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor Cable 85
Connect the sensor cable and the fan cable to the logic board.3.
Replace the display panel.4.
Replace the front bezel5. .
Clean and replace the glass panel6. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door7. .
iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor Cable 86
Ambient Temperature Sensor
Tools
Black stick (or other nonconductive nylon or plastic at-blade tool)•
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
LCD Panel•
Speaker, Lef• t
Part Location
iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor 87
Removing the Ambient Temperature Sensor
Disconnect the ambient temperature sensor cable and the fan cable from the logic board.1.
Lift the CPU fan from the system. Disconnect the ambient temperature sensor cable from the 2.
sensor.
With a black stick, pry the sensor from the fan.3.
iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor 88
Replacing the Ambient Temperature Sensor
Replacement Note:1. If you are replacing the CPU fan transfer the sensor and the sensor cable
to the replacement fan.
Lower the fan into the rear housing. Press the foam gasket into place across the top of the 2.
fan.
iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor 89
Connect the temperature sensor cable and the fan cable to the logic board.3.
Replace the display panel.4.
Replace the front bezel5. .
Clean and replace the glass panel6. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door7. .
iMac (24-inch Mid 2007) Take Apart — Ambient Temperature Sensor 90
LVDS Cable
Tools
Torx T6 screwdriver•
Soft, clean towel or cloth•
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
LCD Panel•
Part Location
iMac (24-inch Mid 2007) Take Apart — LVDS Cable 91
Removing the LVDS Cable
With the display face down on a soft cloth, peel up the two strips of black tape from the 1.
LVDS cable on the back of the display panel.
Press in on the LVDS connector lock release clips (1) and gently pull (2) to disconnect the 2.
LVDS cable from the back of the panel.
Lift the LVDS cable from the display panel.3.
iMac (24-inch Mid 2007) Take Apart — LVDS Cable 92
Replacing the LVDS Cable
Connect the LVDS cable to the rear of the display panel.1.
Replace the clear Kapton tape over the LVDS cable connector.2.
Connect the inverter cable to the inverter board on the rear of the panel. Cover the cable 3.
and connector with the sticky, black mylar tape.
922-7010
Lower the display into the rear housing.4.
Connect the other end of the inverter cable to the power supply.5.
6. Connect the LVDS cable to the logic board. Replace the two T6 screws.
iMac (24-inch Mid 2007) Take Apart — LVDS Cable 93
Connect the LCD temp sensor cable to the bottom left corner of the logic board. Tuck any 7.
extra length of the cable in the area between the CPU fan and the edge of the logic board.
922-8172
Install 8. the eight mounting screws.
iMac (24-inch Mid 2007) Take Apart — LVDS Cable 94
Replace the front bezel9. .
Clean and replace the glass panel10. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door11 . .
iMac (24-inch Mid 2007) Take Apart — LVDS Cable 95
Inverter Cable
Tools
No tools are required to remove the inverter cable•
Preliminary Steps
Before you begin, remove the following:
Access door•
Glass panel •
Front bezel•
LCD Panel•
Part Location
iMac (24-inch Mid 2007) Take Apart — Inverter Cable 96
Removing the Inverter Cable
Disconnect the inverter cable from the back of the display panel.1.
If you are replacing the inverter cable, disconnect the other end of the cable from the power 2.
supply.
Place the LCD panel in a clean ESD bag until the repair is complete to prevent the buildup 3.
of static charges which may attract dust particles to the surface of the display. Store the LCD
panel in an anti-static bag whenever it has been removed from the system.
iMac (24-inch Mid 2007) Take Apart — Inverter Cable 97
Replacing the Inverter Cable
Remove the LCD panel from the ESD bag.1.
Connect the inverter cable to the inverter board on the rear of the display panel.2.
Connect the other end of the inverter cable to the power supply. 3.
Lower the display panel into the computer.4.
Connect the display temp sensor cable to the left side of the logic board.5.
iMac (24-inch Mid 2007) Take Apart — Inverter Cable 98
922-7010
6. Connect the LVDS cable to the logic board. Replace the two T6 screws.
922-8172
7. Install the eight mounting screws.
Replace the front bezel8. .
iMac (24-inch Mid 2007) Take Apart — Inverter Cable 99
Clean and replace the glass panel9. . Note: This step is very important. Follow the procedures
to ensure the glass is clean and free of particles.
Replace the access door10. .
iMac (24-inch Mid 2007) Take Apart — Inverter Cable 100
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