Apple imac-17 Service Manual

 Service Source

iMac (Early 2006 17-inch)

1 August 2006

© 2006 Apple Computer, Inc. All rights reserved.

iMac (Early 2006 17-inch)

Contents

Take Apart

General Information 6

Product View 6
Identifying the iMac (Early 2006 17-inch) Computer 6
What’s New? 7

What’s Dierent on this iMac?

Tools Required 8
Orientation 8
Serial Number Location 8
Safety 10
Opening the Computer 11
Access Tool Modication 11
EMI Shielding 14

7

Access Door 19

Memory 21

Front Bezel 2

4

Camera Board 33

Lower EMI Shield 3

9

IR Board 41

AirPort Extreme Card 44

Battery 4

7

LCD Display 50

LVDS Display Cable 5

5

Inverter 58

Speakers 6

Bluetooth Card 6

2

5

ii

Optical Drive 68

Hard Drive 75

DC-DC Board 81

Power Supply 84

Logic Board 88

CPU Fan 94

Optical Drive Fan 96

Hard Drive Fan 98

AC Line Filter 100

Ambient Light Sensor Board 104

Clutch 108

AirPort Antenna 113

Bluetooth Antenna 117

DC Power Cable 121

Camera Cable 124

Chassis 128

Rear Housing 132

Troubleshooting

General Information 134

Serial Number Location 134
Power On Self Test (POST) 134
DDR Memory 134
How to reset the System Management Controller (SMC) 135

Symptom Charts 137

Power Issues 138
No Video 140
Display 143
Hard Drive 144
Optical Drive 146
Fan Sound 151
AirPort 154

iii

IR Remote 155
IR Sensor/Receiver 156
Built-in iSight Camera 157
Speakers 159
Mouse 161
Keyboard 162
Error Beep(s) 163
USB 164

Views

iMac (Early 2006 17-inch)—Upper Exploded View 168
iMac (Early 2006 17-inch)—Lower Exploded View 169

Screw Chart 170

Screw Chart (continued) 171

iv

 Service Source

Take Apart

iMac (Early 2006 17-inch)

© 2005 Apple Computer, Inc. All rights reserved.

Product View

General Information

Identifying the iMac (Early 2006 17-inch) Computer

In January 2006, a second generation iMac including a built-in iSight camera was introduced
using an Intel processor. You can identify the iMac with the Intel processor in several ways.

Check the Conguration on the bottom label. On the bottom of your iMac stand, you’ll nd

1.

a label with the conguration information printed on it: The PowerPC G5 iMac computers will
list “iMac G5” in the conguration. iMac computers using Intel processors will not list G5 in
their conguration.

Check the “About This Mac” window. From the Apple Menu, choose About This Mac. The

2.
Processor listing will read the speed of the processor followed by the processor type; iMac
computers introduced in January 2006 will list an Intel processor .

iMac (Early 2006 17-inch) Take Apart — General Information 6

What’s New?

August 2006

Updated the Hard Drive section in the Take Apart chapter. Note: Make sure to transfer the

•

temperature sensor to the replacement hard drive. Use the double-stick tape enclosed with

the replacement hard drive to attach the sensor.

March 2006

A Screw Chart was added.

•
Access tool modication. Refer to Opening the Computer in this chapter.

•

Troubleshooting symptom added: No audio from internal speakers (may hear faint putt-

•

putt or motorboating noise).

Troubleshooting symptom added: No Video, No Boot Chime, White LED ON (Symptom 1)

•

February 2006: Memory

The photographs have been updated in the memory chapter

•

What’s Different on this iMac?

Logic board

Intel Core Processor 1.83 and 2.0 GHz

•
No troubleshooting LEDs

•
Battery is located on the top side of the logic board

•

AirPort Extreme and Bluetooth

Separate antennas

•

Separate parts: AirPort Extreme and Bluetooth boards

•

Memory

SO-DIMM DDR2 667 MHz, memory slot

•

Memory ejector levers are visibly dierent from the iMac G5 (iSight) models and should be

•
used as shown in the Take Apart section.

Ports

Mini-DVI video out port (for mirroring or extending the desktop)

•

Displays

LVDS (Low Voltage Dierential Signaling ) displays

•

Power Management

SMC replaces SMU (Refer to Kbase article 301733)

•

Diagnostics

Apple Hardware Test and Apple Service Diagnostic have new interfaces and procedures (See

•
Diagnostics)

iMac (Early 2006 17-inch) Take Apart — General Information 7

Troubleshooting

New procedures for troubleshooting no power (See Symptom Charts)

•
New procedures for troubleshooting no video (See Symptom Charts)

•
Updated procedures for Target Disk Mode (See Using Target Disk Mode)

•
Updated procedures for formatting hard drives (See Drive Formatting for Intel-based Macs.)

•

Tools Required

The following tools are required to service the computer. Note that a special access card (part
922-7172) is required to open the front bezel.

ESD-safe workstation and mat

•
Soft, clean towel or cloth (to protect the display and removed parts from scratches)

•
Access card (part 922-7172)

•

Black stick (or other nonconductive nylon or plastic at-blade tool)

•
Phillips #1 screwdriver

•
Phillips #2 screwdriver

•
Torx T8 screwdriver (magnetized)

•
Torx T6 screwdriver (magnetized)

•
Torx T10 screwdriver (magnetized)

•
Flat-blade screwdriver

•

Orientation

For most repairs, the unit should be placed screen-side up, with the bottom facing toward you.

Most photos in this manual reect that orientation. The DIMM slot is located beneath the front

bezel and is more easily accessed with the unit face-down on a soft, clean cloth.

Serial Number Location

iMac serial numbers are located on the bottom of the computer stand. Note: iMac computers
using Intel processors will not have the G5 listed in the conguration (as shown below).

iMac (Early 2006 17-inch) Take Apart — General Information 8

iMac (Early 2006 17-inch) Take Apart — General Information 9

Safety

Warning: When the iMac (Early 2006) 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.

WARNING: HIGH VOLTAGE
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 maintenance.

•

Don’t work alone. In the even 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 iMac (Early 2006) 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 (Early 2006 17-inch) Take Apart — General Information 10

Opening the Computer

Apple authorized, desktop certied technicians only should ever remove the front bezel on the

iMac (Early 2006). When the front bezel is removed, be sure to always ground yourself and follow
ESD-safe repair practices

Removing the front bezel requires using a special access card (part 922-7172) to release latches
located inside the upper corners of the front bezel. Slightly bending the upper quarter of the
access tool card will help engage the latch more securely.

As you are inserting the card to disengage the latch you should squeeze the top of the bezel,

that will help take pressure o of the latch and enable it to open easier. Note: If the bezel won’t

open, try cutting the card lengthwise into 3/4 inch or 1.5 cm strips. Insert the card again, aimed
straight up, and try again.

Once the card has been released it is safe to open the bezel. See the Front Bezel Take Apart
procedure for more information.

Access Tool Modication

If you wish to modify the access card tool, order kit 076-1213. The kit contains an access card and
a piece of EMI gasket that can be cut and added to the top of the card. The additional thickness
on the card will improve the chances of making contact with each bezel latch.

Remove the tape on the gasket to expose the sticky side of the gasket. Attach the sticky side

1.
of the EMI gasket to the top of the access card.

iMac (Early 2006 17-inch) Take Apart — General Information 11

Cut the EMI gasket to the edge of the access card.

2.

Using packing tape, or something equivalent, fold the tape over the EMI gasket to attach the

3.
gasket to the card.

iMac (Early 2006 17-inch) Take Apart — General Information 12

Bend the card at a slight angle at the top to make sure the card makes contact with each

4.
latch.

Refer to Removing the Front Bezel for the complete procedure.

5.

iMac (Early 2006 17-inch) Take Apart — General Information 13

EMI Shielding

The iMac (Early 2006) enclosure 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.

Cover nicks, such as the those shown below, with EMI tape.

iMac (Early 2006 17-inch) Take Apart — General Information 14

Pay particular attention to the faraday shielding inside the rear housing, shown below. The
faraday shield is easily damaged when replacing the hard drive.

Lower EMI Shield

EMI tape covers the top and sides of the display panel, and the lower EMI shield covers the logic
board along the bottom of the unit. The EMI tape and lower EMI shield are easily damaged when
removed, and removal is necessary in order to access most components within the unit.

Should the EMI tape that seals the display, or the EMI shield covering the bottom of the enclosure
(see photo below) accidentally tear, use EMI tape to repair and completely seal the unit.

iMac (Early 2006 17-inch) Take Apart — General Information 15

When properly repaired, all edges shown below will be wrapped by EMI tape, and the tape

securely adhered to all edges. Use a black stick to atten the EMI tape tightly and rub out air

pockets and wrinkles.

iMac (Early 2006 17-inch) Take Apart — General Information 16

iMac (Early 2006 17-inch) Take Apart — General Information 17

iMac (Early 2006 17-inch) Take Apart — General Information 18

Access Door

Tools

Phillips #2 screwdriver.

•
ESD-safe workstation and mat

•
Soft, clean towel or cloth

•

Preliminary Steps

Before you begin, lay the computer down so the panel is face down and the bottom is facing
you.

Part Location

iMac (Early 2006 17-inch) Take Apart — Access Door 19

Removing the Access Door

Raise the stand and use a Phillips #2 screwdriver to loosen the two captive screws that

1.
secure the memory access door. Remove the access door.

Replacing the Access Door

Make sure the memory ejector tabs are in the closed position before attaching the access

1.
door.

Position the access door on the rear housing over the memory compartment.

2.

Lift the stand out of the way.

3.

Use a Phillips #2 screwdriver to tighten the captive screws.

4.

iMac (Early 2006 17-inch) Take Apart — Access Door 20

Memory

Tools

Phillips #2 screwdriver.

•
ESD-safe workstation and mat

•
Soft, clean towel or cloth

•

Preliminary Steps

Before you begin, lay the computer down so the panel is face down and the bottom is facing
you.

Part Location

iMac (Early 2006 17-inch) Take Apart — Access Door 21

Removing the Memory

After removing the access door, touch the metal frame around the memory compartment to

1.
discharge any static 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.

Pull the two levers in the memory compartment toward you. If a memory module is installed

2.
in the slot, pulling the levers will dislodge it. Note: The levers are used to remove memory
not to install memory. Always install memory my hand.

a

Set the memory module aside.

3.

iMac (Early 2006 17-inch) Take Apart — Access Door 22

Replacing the Memory

Make sure the DIMM levers are all the way open.

1.

With the computer face down, orient the DIMM with the notch on the left.

2.

With your ngers, press the DIMM fully into the slot until you hear a click. After inserting the

3.
memory, fold the DIMM levers closed. There will be a slight resistance and you will hear a
click when they fold into the closed position.

Replace the access door on the memory compartment.

4.

Use a Phillips #2 screwdriver to tighten the captive screws on the access door.

5.

iMac (Early 2006 17-inch) Take Apart — Access Door 23

Front Bezel

Tools

This procedure requires the following tools:

Access card tool 922-7172

•
Torx T8 screwdriver

•

Preliminary Steps

Before you begin, follow steps for removing the access door and the memory.

Part Location

iMac (Early 2006 17-inch) Take Apart — Front Bezel 24

Removing the Front Bezel

With the bottom facing toward you use a T8 torx screwdriver to remove the four bezel

1.
mounting screws.

Stand the computer upright.

2.

Located the access card tool. Bend the upper quarter of the access tool card slightly to

3.
engage the front bezel latches. Note: Refer to Access Tool Modication in the General
Information chapter if the bezel is dicult to open.

iMac (Early 2006 17-inch) Take Apart — Front Bezel 25

This picture shows how the access tool works. Pushing the tool up the vent on the rear cover

4.
releases the latches on the inside of the front bezel. Refer to the next step for the procedure.

Start on the left side (looking from the back of the unit). As you insert the card to disengage

5.

the latch, squeeze the top of the bezel, that will help take pressure o of the latch and

enable it to open easier. As the bezel releases, pull the bezel away from the rear housing.

Note: If the bezel won’t open, try cutting the card lengthwise into 3/4 inch or 1.5 cm strips.

Insert the card again, on a 45º angle, aimed toward the outer corner, and try again.

iMac (Early 2006 17-inch) Take Apart — Front Bezel 26

Repeat step 5 to release the locking latch in the right corner. Again, pull the bezel away as

6.
the card releases the latch.

If the bezel won’t release, pull the bottom of the bezel out a bit and insert the access card

7.
again.

iMac (Early 2006 17-inch) Take Apart — Front Bezel 27

Repeat step 7 for the left side.

8.

Once the access card has been removed, it is safe to open the bezel. Position the unit on an

9.
ESD mat, with the bottom facing toward you. Caution: Make sure the memory levers are
closed and not protruding from the bezel when removing the bezel.

iMac (Early 2006 17-inch) Take Apart — Front Bezel 28

Lift the bottom of the front bezel straight up to remove it, and swing the bezel over onto its

10.
top edge so you can disconnect two cables attached to the top of the bezel.

iMac (Early 2006 17-inch) Take Apart — Front Bezel 29

Swing the bezel up so you can disconnect the two camera board cables Remove the any

11.
kapton tape and disconnect the camera and microphone cables from the camera board..

If replacing a damaged front bezel, remove the camera board.

12.

iMac (Early 2006 17-inch) Take Apart — Front Bezel 30

Replacing the Front Bezel

Position the front bezel near the top edge of the unit and connect the two camera board

1.
connectors.

Make sure the black EMI shielding along the top of the LCD panel is not in the way of the

2.
locking mechanisms when you lower the front bezel onto the computer. Use a black stick to
press (re-stick) the EMI shielding along the top of the panel.

Tuck the cables neatly into the channel on the rear housing.

3.

iMac (Early 2006 17-inch) Take Apart — Front Bezel 31

Make sure the memory ejector levers are in the closed position (as shown) before lowering

4.
the front bezel over the ejectors.

Continue to lower the font bezel down and press the top corners of the front bezel to

5.
connect the latches. Note: Check that the latches are connected by lifting the front bezel at
each corner.

Replace the four bezel mounting screws along the bottom of the computer.

6.

Replace the access door and tighten the two captive screws.

7.

Install any removed DIMMS after the unit is fully assembled. Important: Memory DIMMs

8.
must be installed by hand. Do not use the memory ejector levers to install memory.

iMac (Early 2006 17-inch) Take Apart — Front Bezel 32

Camera Board

Tools

The only tool required for this procedure is a T6 screwdriver.

Preliminary Steps

Before you begin, follow steps for removing the access door and front bezel.

Part Location

iMac (Early 2006 17-inch) Take Apart — Camera Board 33

Removing the Camera Board

The camera board and cables are visible as you lift the front bezel o the computer.

1.

Disconnect the camera and microphone cables.

2.

iMac (Early 2006 17-inch) Take Apart — Camera Board 34

Using a T6 screwdriver, peel back the mylar and kapton tape as necessary and remove the

3.
two camera board mounting screws. Pull the camera board straight out of the lens aperture
in the bezel to remove it.

iMac (Early 2006 17-inch) Take Apart — Camera Board 35

Replacing the Camera Board

Carefully align and insert the camera lens until it is snug in the bezel aperture.

1.

Install the camera board to the bezel with two mounting screws.

2.

Replace the front bezel.

3.

Replace the access door.

4.

iMac (Early 2006 17-inch) Take Apart — Camera Board 36

iMac (Early 2006 17-inch) Take Apart — Camera Board 37

iMac (Early 2006 17-inch) Take Apart — Camera Board 38

Lower EMI Shield

Tools

The only tool required for this procedure is a “black stick” (or other nonconductive nylon or

plastic at-blade tool).

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Lower EMI Shield — 39

Removing the Lower EMI Shield

Carefully peel the lower EMI shield o the bottom edge of the rear housing. Use a black stick

1.
to help peel back the shield.

If replacing a torn or damaged lower EMI shield, peel the lower EMI shield o the bottom

2.
edge of the display.

Replacing the Lower EMI Shield

Position the lower EMI shield over the bottom of the unit so that the holes in the shield are

1.
properly aligned.

Press the sticky, top edge of the EMI shield onto the bottom side of the display panel. The

2.
crease in the EMI shield should align with the edge of the panel.

Fold down the EMI shield and press it rmly over the bottom edge of the rear housing. Use a

3.

black stick to rub out wrinkles and ensure that the EMI shield adheres rmly along all edges.

Replace the front bezel.

4.

Replace the access door.

5.

iMac (Early 2006 17-inch) Take Apart — Lower EMI Shield — 40

IR Board

Tools

The only tool required for this procedure is a Torx T6 screwdriver (magnetized).

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•

Part Location

iMac (Early 2006 17-inch) Take Apart — IR Board 41

Removing the IR Board

Disconnect the IR cable from the IR board connector.

1.

Using a Torx T6 screwdriver, remove the two IR board screws. Remove the IR board from its

2.
mounting bracket.

iMac (Early 2006 17-inch) Take Apart — IR Board 42

Replacing the IR Board

Install the IR board and two mounting screws onto its mounting bracket.

1.

Connect the IR cable to the IR board connector.

2.

Replace the lower EMI shield.

3.

Replace the front bezel.

4.

Replace the access door.

5.

iMac (Early 2006 17-inch) Take Apart — IR Board 43

AirPort Extreme Card

Tools

The only tool required for this procedure is a Torx T6 screwdriver (magnetized).

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•

Part Location

iMac (Early 2006 17-inch) Take Apart — AirPort Card 44

Removing the AirPort Extreme Card

Disconnect the antenna cable from the AirPort Extreme card connector and remove the two

1.
T6 screws securing the card to the logic board.

The card will spring up when the screws are removed. Grab the card from the connector

2.
end, pull the card from its socket on the logic board.

iMac (Early 2006 17-inch) Take Apart — AirPort Card 45

Replacing the AirPort Extreme Card

Install the AirPort Extreme card into the socket.

1.

Install the two mounting screws securing the card to the logic board.

2.

Connect the AirPort antenna cable to the connector closest to the memory slot.

3.

Replace the lower EMI shield.

4.

Replace the front bezel.

5.

Replace the access door.

6.

iMac (Early 2006 17-inch) Take Apart — AirPort Card 46

Battery

Tools

The only tool required for this procedure is a black stick.

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Battery 47

Removing the Battery

Pry the battery from the battery slot.

1.

Replacing the Battery

Slide the battery (with voltage information face up) under the battery clip.

1.

Replace the lower EMI shield.

2.

Replace the front bezel.

3.

Replace the access door.

4.

iMac (Early 2006 17-inch) Take Apart — Battery 48

iMac (Early 2006 17-inch) Take Apart — Battery 49

LCD Display

Tools

Removing the LCD display requires using the following tools:

Torx T10 screwdriver

•
Torx T6 screwdriver

•

Black stick (or other nonconductive nylon or plastic at-blade tool)

•

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Display Panel-50

Removing the LCD Display

Using the black stick, or access tool, carefully peel back the EMI shielding from the left, right,

1.
and bottom edges of the computer

Using a Torx T6 screwdriver, remove the two LVDS cable connector screws. Disconnect the

2.
LVDS display cable from the logic board. To the right of the LVDS connector, disconnect the
inverter cable from the logic board.

iMac (Early 2006 17-inch) Take Apart — Display Panel-51

Peel the EMI tape away from each side of the panel. Using a Torx T10 screwdriver, remove the

3.
four panel mounting screws.

Pivot the panel up, as shown, then carefully peel the top edge of the panel away from the

4.
EMI shield.

iMac (Early 2006 17-inch) Take Apart — Display Panel-52

Note: If replacing a bad LCD display, you will also need to remove the lower EMI shield
(if still attached), the display panel mounting brackets, and the LVDS cable as follows.

If attached, peel the lower EMI shield o the bottom edge of the display panel.

5.

Using a torx T10 screwdriver, remove two screws from the left side panel mounting bracket.

6.

Using a torx T10 screwdriver, push the tape aside and remove the two mounting screws from

7.
the right side panel bracket as shown below.

Peel back the tape where shown below, and disconnect the two inverter-to-display cable

8.
connectors.

Remove the LVDS cable from the rear of the display.

9.

Return the panel to Apple. Note: The panel is a like-for-like exchange.

10.

iMac (Early 2006 17-inch) Take Apart — Display Panel-53

Replacing the LCD Display

Replace the LVDS cable on the rear of the display panel.

1.

Connect the two inverter-to-display cable connectors and tape them to the back of the

2.
display panel.

Replace the right panel mounting bracket on the display panel with two screws.

3.

Replace the left bracket on the display panel with two screws.

4.
Push aside any cables that could interfere with the display mounting brackets when lowered
into position.

Make sure the inverter cable extends beyond the bottom of the display panel, and install the

5.
panel with the mounting bracket screw holes and the screw mounts aligned.

Secure the panel with four mounting screws.

6.

Connect the inverter cable connector.

7.

Connect the LVDS cable connector and secure it with two screws.

8.

Fold the EMI tape rmly over the left, top, and right edges of the display panel. Use the black

9.

stick to adhere the tape rmly and rub out wrinkles.

Replace the lower EMI shield.

10.

Replace the front bezel.

11.

Replace the access door.

12.

iMac (Early 2006 17-inch) Take Apart — Display Panel-54

LVDS Display Cable

Tools

Removing the LVDS cable requires using the following tools:

Torx T8 screwdriver (magnetized)

•

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•

Part Location

iMac (Early 2006 17-inch) Take Apart — LVDS Cable 55

Remove the LVDS Cable

Locate the LVDS cable on the back side of the display panel, and remove the pieces of tape

1.
that secure the cable to the panel. Also, carefully remove the tape securing the LVDS
connector to the panel connector.

iMac (Early 2006 17-inch) Take Apart — LVDS Cable 56

Pinch together the connector locking levers, and disconnect the LVDS cable connector.

2.

Replacing the LVDS Cable

Position the LVDS cable on the back of the display panel as shown in the Part Location photo

1.
above.

Connect the LVDS cable connector. When connected correctly the locking levers will secure

2.
the connector and it cannot be disconnected without depressing the levers.

Secure the LVDS cable to the panel with four strips of tape.

3.

Replace the display panel.

4.

Replace the lower EMI shield.

5.

Replace the front bezel.

6.

Replace the access door.

7.

iMac (Early 2006 17-inch) Take Apart — LVDS Cable 57

Inverter

Tools

Removing the inverter requires using a at-blade screwdriver

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Inverter— 58

Removing the Inverter

Remove two pieces of tape that secure the inverter cables to the back of the display panel,

1.
and disconnect the inverter connectors where shown.

Using a at-blade screwdriver as shown, pry up the inverter to remove it from inside the

2.
display panel mounting bracket.

iMac (Early 2006 17-inch) Take Apart — Inverter— 59

Replacing the Inverter

Insert the inverter cable through a hole at the back center of the right mounting bracket,

1.
and press the sticky side of the replacement inverter onto the back edge of the bracket.

Connect the inverter-to-display cables and tape them to the back of the display panel.

2.

.

Replace the display panel.

3.

Replace the lower EMI shield.

4.

Replace the front bezel.

5.

Replace the access door.

6.

iMac (Early 2006 17-inch) Take Apart — Inverter— 60

iMac (Early 2006 17-inch) Take Apart — Inverter— 61

Speakers

Tools

Removing the speaker requires using the following tools:

Torx T10 screwdriver (magnetized)

•
Torx T6 screwdriver (magnetized)

•

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Displayy

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Speaker

Removing the Speakers

Using a T10 torx screwdriver, remove the screws from the left and right speakers.

1.
Replacement Note: The longer of the two speaker mounting screws is used to secure the
left speaker; the shorter screw secures the right speaker.

Lift the speakers straight up and disconnect the speaker cable under the right speaker.

2.

iMac (Early 2006 17-inch) Take Apart — Speaker

Replacing the Speakers

Connect the speaker cable connector to the logic board.

1.

Install the speakers and route the speaker wire above the heatsink and around the fan.

2.

Secure the right speaker with the shorter of the two mounting screws.

3.

Secure the left speaker with the longer of the two mounting screws.

4.

Replace the display panel.

5.

Replace the EMI shield.

6.

Replace the front bezel.

7.

Replace the access door.

8.

iMac (Early 2006 17-inch) Take Apart — Speaker

Bluetooth Card

Tools

Removing the Bluetooth card requires using the following tools:

Torx T6 screwdriver (magnetized)

•

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Displayy

•
Speakers

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Bluetooth Card

Remove the Bluetooth Card

Using a T6 torx screwdriver, remove the mounting screws from Bluetooth card and gently

1.
disconnect the Bluetooth antenna from the connector on the card.

Lift the Bluetooth card straight up and o the logic board connector.

2.

Replacing the Bluetooth Card

Connect the card to the logic board.

1.

Attach the Bluetooth antenna to the Bluetooth card.

2.

Replace the two T6 screws on the Bluetooth card.

3.

Connect the speaker cable connector to the logic board,

4.

Secure the right speaker with the smaller of the two mounting screws.

5.

Secure the left speaker with the longer of the two mounting screws.

6.

Replace the display panel.

7.

Replace the EMI shield.

8.

Replace the front bezel.

9.

Replace the access door.

10.

iMac (Early 2006 17-inch) Take Apart — Bluetooth Card

iMac (Early 2006 17-inch) Take Apart — Bluetooth Card

Optical Drive

Tools

Removing the optical drive requires using the following tools:

Torx T10 screwdriver (magnetized)

•
Torx T6 screwdriver (magnetized)

•
Flat-blade screwdriver

•

Preliminary Step

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Optical Drive 68

Removing the Optical Drive

Disconnect the sensor cable from the temperature sensor on top of the optical drive and

1.

remove the exible cable (location shown, but the cable is not present).

Locate the black tabs at each side of the plastic optical drive mounting bracket. Using a at-

2.
blade screwdriver as shown, press down on the mounting bracket at the base of the release
tab, while pinching the release tab toward the center of the drive. Repeat process to unhook
the other release tab from the chassis.

iMac (Early 2006 17-inch) Take Apart — Optical Drive 69

Caution: Never press down on or grasp the body (silver) of the optical drive when removing
or installing it. Depressing the body of the optical drive could damage the mechanism. Grasp
the optical drive by its mounting bracket only.

Lift the rear of the drive and pull the front bezel of the drive straight back and out of the

3.
access hole in the housing.

If replacing a bad optical drive, use a T6 torx screwdriver to remove two ex cable mounting

4.
screws. Disconnect and keep the ex cable for installation on the replacement drive.

If replacing a bad optical drive, also remove the temperature sensor from the top of the

5.
drive. Discard the sensor—the replacement drive comes with a new sensor already installed.

iMac (Early 2006 17-inch) Take Apart — Optical Drive 70

Replacing the Optical Drive

If necessary, install the ex cable to the optical drive with two screws.

1.

Insert the optical drive bezel-end-rst into the access hole in the housing. Be sure to align

2.
the two guide holes in the front bezel with guide posts at each end of the drive access hole.

iMac (Early 2006 17-inch) Take Apart — Optical Drive 71

Push down on the mounting bracket to lock the optical drive securely into place on the

3.
chassis.
Caution: Never press down on or grasp the body (silver) of the optical drive when removing
or installing it. Depressing the body of the optical drive could damage the mechanism. Grasp
the optical drive by its mounting bracket only.

Connect the optical drive ex cable and secure it with the ex cable mounting clip and

4.
screw.

Replace the display panel.

5.

Replace the lower EMI shield.

6.

Replace the front bezel.

7.

Replace the access door.

8.

iMac (Early 2006 17-inch) Take Apart — Optical Drive 72

iMac (Early 2006 17-inch) Take Apart — Optical Drive 73

iMac (Early 2006 17-inch) Take Apart — Optical Drive 74

Hard Drive

Tools

Removing the hard drive requires using the following tools:

Torx T8 screwdriver (magnetized)

•
Flat-blade screwdriver

•

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Hard Drive 75

Remove the Hard Drive

Disconnect the sensor cable from the temperature sensor on top of the hard drive.

1.

Note: If you are replacing the hard drive, transfer the temperature sensor to the replacement

2.

hard drive. Use the double-stick tape enclosed with the replacement hard drive to attach the
sensor. Continue on to the next step.

iMac (Early 2006 17-inch) Take Apart — Hard Drive 76

Position yourself at the top side of the unit closest to the hard drive mounting bracket. Grasp

3.
the mounting bracket as shown, and push in on the edge of the bracket until you feel it

release. If the bracket doesn’t release, use a at-blade screwdriver to pry up on the bottom of

the mounting bracket to help release it.

Disconnect the hard drive power and data cables. Lift the hard drive out of the chassis.

4.

iMac (Early 2006 17-inch) Take Apart — Hard Drive 77

Replacement Note: If you are replacing a bad hard drive, transfer the temperature sensor,

5.

mounting bracket, and mounting pins before returning the defective drive to Apple.

Using a T8 torx screwdriver, remove two screws and the mounting bracket from the drive.

6.

Using a T8 torx screwdriver, remove two mounting pins from the other side of the drive.

7.

iMac (Early 2006 17-inch) Take Apart — Hard Drive 78

Transfer the temperature sensor to the replacement drive if you haven’t done so already.

8.

iMac (Early 2006 17-inch) Take Apart — Hard Drive 79

Replacing the Hard Drive

Install two mounting pins to the side of the hard drive.

1.

Install the mounting bracket to the side of the hard drive with two screws.

2.

Secure the temperature sensor to the top of the hard drive.

3.

Connect the temperature sensor cable to the sensor. Make sure the other end of the sensor

4.
cable is connected to the logic board.

Connect the hard drive power and data cables.

5.

Insert the hard drive pins into the grommets. Lower the drive into the rear housing

6.

Make sure the hard drive power and data cables are routed around the drive and beneath

7.
the hard drive mounting bracket. Press down on the mounting bracket to lock it in place on
the chassis.

Replace the display panel.

8.

Replace the lower EMI shield.

9.

Replace the front bezel.

10.

Replace the access door.

11.

iMac (Early 2006 17-inch) Take Apart — Hard Drive 80

DC-DC Board

Tools

Removing the dc-dc board requires using the following tools:

Torx T10 screwdriver (magnetized)

•

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•

Part Location

iMac (Early 2006 17-inch) Take Apart — DC-DC Board

Removing the DC-DC Board

Disconnect the power supply cable and the DC power cable from the DC-DC board.

1.

Using a T10 torx screwdriver, remove the self-tapping screw from the top corner of the DC-

2.
DC board and the black self-tapping screw below it. Lift the board straight up to remove it.

iMac (Early 2006 17-inch) Take Apart — DC-DC Board

Replacing the DC-DC Board

Position the DC-DC board and install the long black self-tapping screw in the lower right

1.
corner, and the screw in the top right corner.

Connect the DC power cable and the power supply cable to connectors on the DC-DC board.

2.

Replace the display panel.

3.

Replace the lower EMI shield.

4.

Replace the front bezel.

5.

Replace the memory access door.

6.

iMac (Early 2006 17-inch) Take Apart — DC-DC Board

Power Supply

Tools

Removing the power supply requires using the following tools:

Torx T10 screwdriver (magnetized)

•

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•
Hard drive

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Power Supply

About the Power Supply

Warning: When the iMac 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.

WARNING: HIGH VOLTAGE
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 maintenance.

•

Don’t work alone. In the even 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 iMac 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 (Early 2006 17-inch) Take Apart — Power Supply

Removing the Power Supply

Using a T10 torx screwdriver, remove the three self-tapping screws from both top corners

1.
and the lower left corner of the DC-DC board. Then remove the machine screw from the
lower right corner of the board.
Replacement Note: When installing the mounting screws in the power supply, install the

machine screw rst in the lower right corner of the power supply. Then install the three self-

tapping screws.

iMac (Early 2006 17-inch) Take Apart — Power Supply

Disconnect the power supply cable in the top left corner of the photo).

2.

Pull out the power supply-to-AC line lter cable from beneath the metal chassis. Disconnect

3.
the connectors.

Replace the Power Supply

Position the power supply loosely in its mounting location.

1.

Route the power supply end of the power supply-to-AC line lter cable beneath the chassis.

2.
Connect the two connectors. Tuck the cable beneath the chassis and away from the hard
drive bay.

Connect the DC power cable.

3.

Install the machine screw in the lower right corner of the power supply. Then install the three

4.
self-tapping screws.

Replace the hard drive.

5.

Replace the display panel.

6.

Replace the lower EMI shield.

7.

Replace the front bezel.

8.

Replace the access door.

9.

iMac (Early 2006 17-inch) Take Apart — Power Supply

Logic Board

Tools

Removing the logic board requires using the following tools:

Torx T10 screwdriver (magnetized)

•
Torx T6 screwdriver (magnetized)

•

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•
IR Board

•
AirPort Extreme Card

•
Speakers

•
Bluetooth Card and Cable

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Logic Board 88

Removing the Logic Board

Disconnect the cables (circled) and the optical ex cable from the logic board.

1.

Using a T10 torx screwdriver, remove the screws from the logic board. Note the locations of

2.
the self-tapping and machine screws as you remove the screws.

iMac (Early 2006 17-inch) Take Apart — Logic Board 89

Remove the optical drive.

3.

With the stand facing you, lift the board and locate the black power connector on the

4.
underside of the board (on the right side) Refer to the next photo for a close up.

iMac (Early 2006 17-inch) Take Apart — Logic Board 90

Disconnect the power supply cable and carefully lift the logic board out of the chassis.

5.

iMac (Early 2006 17-inch) Take Apart — Logic Board 91

Replacing the Logic Board

Connect the power supply cable to the connector on the bottom of the logic board.

1.

Pull all cables up and away from the logic board bay and gently place down the logic board

2.
so that all screw holes are aligned with screw mounts in the chassis.
Replacement Note: The logic board should rest on the screw mounts without any binding
or bowing—if it doesn’t, adjust any cables that are interfering with the logic board.

Secure the logic board by installing four machine screws, and then installing three self-

3.
tapping screws.

Connect all the cables.

4.

Connect the optical drive ex cable and secure it with the ex cable mounting clip and

5.
screw.

Replace the speakers.

6.

Replace the display panel.

7.

Replace the IR Board and connect the cable.

8.

Replace the AirPort Extreme card and connect the antenna.

9.

Replace the Bluetooth card and connect the antenna.

10.

Replace the lower EMI shield.

11.

Replace the front bezel.

12.

iMac (Early 2006 17-inch) Take Apart — Logic Board 92

Replace the memory.

13.

Replace the memory access door.

14.

iMac (Early 2006 17-inch) Take Apart — Logic Board 93

CPU Fan

Tools

No tools are required to remove the CPU fan.

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•
Speakers

•
Memory

•

Part Location

iMac (Early 2006 17-inch) Take Apart — CPU Fan

Removing the CPU Fan

Disconnect the CPU fan cable from the logic board.

1.

Remove the logic board.

2.

Lift the CPU fan straight up to remove it from two mounting posts.

3.

Replacing the CPU Fan

Align the CPU fan with the two mounting posts in the rear housing, and push it straight

1.
down onto the posts.

Replace the logic board.

2.

Connect the CPU fan cable to the logic board connector.

3.

Replace the speakers.

4.

Replace the display panel.

5.

Replace the lower EMI shield.

6.

Replace the front bezel.

7.

Replace the memory.

8.

Replace the access door.

9.

iMac (Early 2006 17-inch) Take Apart — CPU Fan

Optical Drive Fan

Tools

No tools are required to remove the optical drive fan.

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•
IR Board

•
AirPort Extreme Card

•
Speakers

•
Bluetooth Card and Cable

•
Logic Board and Memory

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Optical Drive Fan 96

Remove the Optical Drive Fan

Lift the optical drive fan straight up and o three mounting posts.

1.

Replace the Optical Drive Fan

Make sure the hard drive power cable and camera board cable are routed beneath the

1.
optical drive fan as shown above. Align and install the optical drive fan on three mounting
posts. Push it down snug onto the posts.

Replace the logic board.

2.

Replace the speakers.

3.

Replace the display panel.

4.

Replace the IR Board.

5.

Replace the AirPort Extreme card.

6.

Replace the Bluetooth card.

7.

Replace the lower EMI shield.

8.

Replace the front bezel.

9.

Replace the memory.

10.

Replace the memory access door.

11.

iMac (Early 2006 17-inch) Take Apart — Optical Drive Fan 97

Hard Drive Fan

Tools

No tools are required to remove the hard drive fan.

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•
IR Board

•
AirPort Extreme Card

•
Speakers

•
Bluetooth Card and Cable

•
Logic Board and Memory

•

Part Location

iMac (Early 2006 17-inch) Take Apart — Hard Drive Fan 98

Remove the Hard Drive Fan

Lift the hard drive fan straight up and o three mounting posts.

1.

Replacing the Hard Drive Fan

Align and install the hard drive fan on mounting posts. Push it down snug onto the posts.

1.

Replace the logic board.

2.

Replace the speakers.

3.

Replace the IR Board.

4.

Replace the AirPort Extreme card

5.

Replace the Bluetooth card.

6.

Replace the display panel.

7.

Replace the lower EMI shield.

8.

Replace the front bezel.

9.

Replace the memory.

10.

Replace the memory access door.

11.

iMac (Early 2006 17-inch) Take Apart — Hard Drive Fan 99

AC Line Filter

Tools

Removing the AC power inlet requires using the following tools:

Torx T10 screwdriver (magnetized)

•

Preliminary Steps

Before you begin, follow steps for removing the following:

Access door

•
Front bezel

•
Lower EMI shield

•
LCD Display

•
IR Board

•
AirPort Extreme Card

•
Speakers

•
Bluetooth Card and Cable

•
Logic Board and Memory

•

Hard Drive Fan

•

iMac (Early 2006 17-inch) Take Apart — AC Power Inlet 100