Apple imac-17 Service Manual
Service Source
iMac (17-inch Late 2006)
6 September 2006
© 2006 Apple Computer, Inc. All rights reserved.
iMac (17-inch Late 2006)
Contents
Take Apart
General Information 6
Product View 6
Note About Images in This Manual 6
Tools Required 7
Serial Number Location 8
Safety 9
Opening the Computer 10
Access Tool Modication 10
EMI Shielding 13
What’s New 16
September 2006 16
Access Door 17
Memory 1
9
Front Bezel 22
Camera Board 3
1
Lower EMI Shield 35
IR Board 37
AirPort Extreme Card 4
Battery 43
LCD Display 4
6
LVDS Display Cable 53
Inverter 57
Speakers 60
Bluetooth Board 6
3
0
Optical Drive 6
6
ii
Hard Drive 71
DC-DC Board 76
Power Supply 79
Logic Board 83
CPU Fan 88
Optical Drive Fan 90
Hard Drive Fan 93
AC Power Inlet 96
Ambient Light Sensor Board 100
Clutch Mechanism 103
AirPort Antennas 108
Bluetooth Antenna 112
Camera Cable 116
Chassis 120
Rear Housing 123
DC Power Cable 124
Troubleshooting
General Information 128
Serial Number 128
Block Diagram 128
Power On Self Test (POST) 129
Intel-based Mac computers such as the iMac (17-inch Late 2006) rely on a combination of
tones and blinking LEDs to display Power On Self Test (POST) error codes. 129
DDR Memory 130
How to Reset the System Management Controller (SMC) 131
Diagnostic LEDs 132
Symptom Charts 134
Power Issues 135
No Video 137
Display 140
Hard Drive 141
Optical Drive 143
iii
Fan Sound 148
AirPort 151
Bluetooth 152
IR Remote 153
IR Sensor/Receiver 154
Built-in iSight Camera 155
Speakers 157
Mouse 158
Keyboard 159
Error Beep(s) 160
USB 161
Views
iMac (17-inch Late 2006)—Upper Exploded View 163
iMac (17-inch Late 2006)—Lower Exploded View 164
Screw Chart 165
Screw Chart Page 1 165
Screw Chart Page 2 166
iv
Contents
Service Source
Take Apart
iMac (17-inch Late 2006)
© 2006 Apple Computer, Inc. All rights reserved.
Product View
General Information
Note About Images in This Manual
Because a pre-production model was used for most of the images shown in this manual, you may
notice small dierences in appearance between the image pictured and the computer you are
servicing. However, although the appearance diers, the steps and sequence are the same unless
noted.
iMac (17-inch Late 2006) Take Apart — General Information 6
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
•
iMac (17-inch Late 2006) Take Apart — General Information 7
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 conguration (as shown below).
iMac (17-inch Late 2006) Take Apart — General Information 8
Safety
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 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 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 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 (17-inch Late 2006) Take Apart — General Information 9
Opening the Computer
Apple authorized, desktop certied technicians only should ever remove the front bezel on the
iMac. 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, read the next topic, Access Tool Modication.
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 Modication
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 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 (17-inch Late 2006) Take Apart — General Information 10
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 (17-inch Late 2006) Take Apart — General Information 11
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 (17-inch Late 2006) Take Apart — General Information 12
EMI Shielding
The iMac 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 (17-inch Late 2006) Take Apart — General Information 13
Pay particular attention to the EMI shielding inside the rear housing, shown below. The EMI shield
is easily damaged when replacing modules
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 (17-inch Late 2006) Take Apart — General Information 14
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 (17-inch Late 2006) Take Apart — General Information 15
What’s New
September 2006
iMac (17-inch Late 2006)
Logic board, 2GHz Intel Core 2 Duo processor
•
Two built-in AirPort Extreme wireless antennas
•
Built-in wireless Bluetooth 2.0 module standard
•
1GB of 667MHz DDR2 SDRAM standard, PC2-5300, supports up to 3.0 GB system memory
•
160, 250, 500 GB hard drive with serial ATA
•
Troubleshooting LEDs are located under the SATA drive cable and to the left of the battery
•
iMac (17-inch Late 2006) Take Apart — General Information 16
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 (17-inch Late 2006) Take Apart — Access Door 17
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 (17-inch Late 2006) Take Apart — Access Door 18
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 (17-inch Late 2006) Take Apart — Memory 19
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 with your ngers.
Set the memory modules aside.
3.
iMac (17-inch Late 2006) Take Apart — Memory 20
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 (17-inch Late 2006) Take Apart — Memory 21
Front Bezel
Tools
Access card tool 922-7172
•
Torx T8 screwdriver
•
Preliminary Steps
Before you begin, remove the access door and the memory.
Part Location
iMac (17-inch Late 2006) Take Apart — Front Bezel 22
922-7011 (x3)
922-7749 (x1)
Removing the Front Bezel
With the bottom facing toward you use a T8 torx screwdriver to remove the four bezel
1.
mounting screws. The screws are shown in the order they were removed, left to right.
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 Modication in the General
Information chapter if the bezel is dicult to open.
iMac (17-inch Late 2006) Take Apart — Front Bezel 23
This picture shows how the access tool pushes the latch. Go on to the next step to use the
4.
tool.
Start on the left side (looking from the back of the unit). Insert the card to disengage the
5.
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.
iMac (17-inch Late 2006) Take Apart — Front Bezel 24
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 (17-inch Late 2006) Take Apart — Front Bezel 25
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 (17-inch Late 2006) Take Apart — Front Bezel 26
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 (17-inch Late 2006) Take Apart — Front Bezel 27
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 (17-inch Late 2006) Take Apart — Front Bezel 28
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 (17-inch Late 2006) Take Apart — Front Bezel 29
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 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 (17-inch Late 2006) Take Apart — Front Bezel 30
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