Apple eMac (ATI Graphics) 03-07 Service Manual

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Service Source

eMac (ATI Graphics)

Updated 15 July 2003

eMac (ATI Graphics)

eMac -

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Service Source

Take Apart

eMac (ATI Graphics)

Tools

The following tools are recommended for the take apart procedures.

• 2.5 mm hex (for rear housing)

• Nylon probe tools (922-5065)

• Phillips #1 screwdriver

• Phillips #2 screwdriver

• Jeweler’s screwdriver set

• Needlenose pliers

• ESD wriststrap and mat

• CRT discharge tool

Note:

Do not use a power driver on the rear housing screws.

Tools

eMac (ATI Graphics) Take Apart -

CRT Neck/Display/Analog Assembly Handling Information

Handling

Important:

when working with the display/analog assembly.

Do NOT lift, handle, bump, or manipulate the CRT neck/neck board (see arrows below) on the Display/Analog assembly. Modules damaged by mishandling are NOT covered by Apple Warranty. Apple Authorized Service Providers can be liable for broken CRT necks due to improper handling.

Caution

handling the assembly. Lift the assembly from the metal chassis; never lift the assembly from the neck. I

It is imperative that proper handling and packaging guidelines be followed

: The metal chassis has sharp edges, you may want to wear gloves when

Packing a Defective Display/Analog Assembly

The packing procedure is included with the replacement display/analog assembly. Incorrect packaging can result in damaged eMac (ATI Graphics) displays. Please read and follow the directions enclosed in the shipping box of the new display prior to packaging the defective assembly. AASPs can be liable for broken CRT necks due to improper packing and handling.

eMac (ATI Graphics) Take Apart

CRT Neck/Display/Analog Assembly Handling Infor-

Rear Housing

Tools

• 2.5 mm hex (for the rear housing)

• Phillips #2 screwdriver

Part Location

Rear Housing

Preliminary Steps

Before you begin, do the following:

• Place the computer face down on an ESD mat.

eMac (ATI Graphics) Take Apart -

Procedure

1. Remove ten screws. Seven screws on the rear housing, one screw on the user access door (requires Phillips screwdriver), and two screws for the feet (requires Phillips screwdriver).

eMac (ATI Graphics) Take Apart

Rear Housing

2. Gently lift the rear housing up about four inches.

3. Disconnect the power button cable located on the inside the rear housing.

Rear Housing

4. Lift the rear housing off the computer.

eMac (ATI Graphics) Take Apart -

User Access Door

Tools

This procedure requires the following tools:

• Phillips #2 screwdriver

Part Location

Preliminary Steps

Before you begin, do the following:

• Place the computer face down on an ESD mat.

eMac (ATI Graphics) Take Apart

User Access Door

Procedure

1. Remove the screw on the user access door (shown below).

2. Gently remove the access door.

User Access Door

eMac (ATI Graphics) Take Apart -

Feet

Tools

This procedure requires the following tools:

• Phillips #2 screwdriver

Part Location

Preliminary Steps

Before you begin, do the following:

• Place the computer face down on an ESD mat.

eMac (ATI Graphics) Take Apart

Feet

Procedure

1. Remove the two foot screws. Set the plastic feet aside.

Feet

eMac (ATI Graphics) Take Apart -

Power Button

Tools

• Needlenose pliers

Note:

Follow the Replacement Note procedure (step 2) only if you are replacing a

defective power button.

Part Location

Preliminary Steps

Before you begin, do the following:

• Place the computer face down on an ESD mat.

• Remove the user access panel.

• Remove the feet.

• Remove the rear housing.

eMac (ATI Graphics) Take Apart

Power Button

Procedure

1. Disconnect the power button cable from the power button located inside the rear housing.

2. Lift the rear housing off the bezel. page, “Power Button Cable Check” before replacing the rear housing.

Replacement Note:

Refer to the topic on the next

Power Button

eMac (ATI Graphics) Take Apart -

Power Button Cable Check

1. Check that the power button cable in drawn tight before you attach the other end of the cable to the power button (located inside the rear housing).

2. Also, check that the cable is tucked under the chassis tab (as shown) and that the black mark on the cable lines up with the chassis (circled below).

eMac (ATI Graphics) Take Apart

Power Button

Power Button Replacement

1. Continue with this procedure only if you are replacing a defective power button. With a needlenose pliers, push the power button through the retaining ring. The power button will pop off rear housing and the retaining ring may get stuck on the pliers.

2. Obtain the new power button and peel the sticky backing off the power button. Position the power button into the hole on the rear housing (as shown below). picture below is looking at the power button from the inside of the rear housing.

3. Place the retaining ring over the power button connector and press down ﬁrmly.

Note:

The

Power Button

eMac (ATI Graphics) Take Apart -

CRT Discharge

Warning:

injury, always review the Service Foundations: CRT Displays course for safety information. It can be found at: http://service.info.apple.com/service_training/training.html. Click on Desktop Certification Courses and select the Service Foundations: CRT Displays link.

Warning:

an ongoing ground connection.

This product contains high voltage and a high-vacuum picture tube. To prevent

Never use a grounding wriststrap until after discharging the CRT and setting up

Safety Guidelines:

Whenever the rear housing of the computer is removed and before replacing a module, you must

1. Discharge the CRT (shown below) and remove the anode cap.

2. Establish an ongoing ground by using a cable with alligator clips at both ends. Connect one end to the anode aperture, and connect the other end to the metal CRT frame (as shown below).

3. With the CRT discharged and the ongoing ground in place wear a grounding wriststrap to prevent equipment damage from static electricity.

eMac (ATI Graphics) Take Apart

CRT Discharge

Speakers

Tools

This procedure requires the following tools:

• Phillips #2 screwdriver

Part Location

Speakers

Preliminary Steps

Before you begin, do the following:

• Place the computer face down on an ESD mat.

• Remove the user access door.

• Remove the feet.

• Remove the rear housing.

• Discharge the CRT.

eMac (ATI Graphics) Take Apart -

Procedure

1. Remove the left and right speaker screws (circled in the top photos). There are three screws per speaker.

2. Disconnect the two spade connectors (see rectangles in the top photos) on each speaker.

3. Lift the speakers out of the front bezel.

eMac (ATI Graphics) Take Apart

Speakers

Fan

Tools

This procedure requires the following tools:

• Phillips #2

Part Location

Fan

Preliminary Steps

Before you begin, do the following:

• Place the computer face down on an ESD mat.

• Remove the user access door.

• Remove the feet.

• Remove the rear housing.

• Discharge the CRT.

eMac (ATI Graphics) Take Apart -

Procedure

1. On the left side of the fan, disconnect the fan cable and remove the two screws (circled).

2. On the right side of the fan, remove three screws (the green cable goes to the ground screw). and the screw on the bottom left is a ﬁne thread screw.

Replacement Note:

The screw circled on the top left is a self-tapping screw,

eMac (ATI Graphics) Take Apart

Fan

3. Wiggle the fan cable up and out of the groove in the chassis and then disconnect the fan connector from the board.

4. To remove the fan, turn the computer so the fan is facing you. Grab onto the fan near the AC plug and the bottom right corner of the fan. Gently pull the fan toward you and away from the chassis. Be very careful of the CRT neck.

Fan

eMac (ATI Graphics) Take Apart -

Faraday Plate

Tools

This procedure requires the following tools:

• Phillips #2

Part Location

Preliminary Steps

• Place the computer face down on an ESD mat.

• Remove the user access door.

• Remove the feet.

• Remove the rear housing.

• Discharge the CRT.

eMac (ATI Graphics) Take Apart

Faraday Plate

Procedure

1. Remove the four screws on the Faraday plate. of the gray cable (see red arrow) on the top left side of the Faraday plate. Be careful the cable doesn’t get pinched when the Faraday plate is replaced.

Replacement Note:

Note the position

2. Gently pry the top half of the Faraday plate away from the chassis in the direction of the arrows.

Note:

The gray cable (on left) rests in a groove under the Faraday plate.

Faraday Plate

eMac (ATI Graphics) Take Apart -

3. Pull the Faraday plate back (#1) and then push it down (#2) to unhook the metal tabs on the Faraday plate from the cutouts (see graphic on the next page) in the chassis.

4. Continue to pull the Faraday plate back (#1) to unhook the tabs from the chassis. Pull the Faraday plate up (#2) to remove it from the chassis.

eMac (ATI Graphics) Take Apart

Faraday Plate

Faraday Replacement

1. Looking from the top down, line up the metal tabs with the cutouts in the chassis (circled on the right and left) and the slots on the Faraday plate with the white plastic guides on the bezel (circled on the right and left sides of the optical drive).

2. Raise the Faraday plate up and attach it to the frame on the digital assembly. Be careful that the gray cable (shown in step 2 on the previous page) does not get pinched in the Faraday plate.

Faraday Plate

eMac (ATI Graphics) Take Apart -

Optical Drive

Tools

This procedure requires the following tools:

• Phillips #2 screwdriver

Part Location

Preliminary Steps

Before you begin, do the following:

• Place the computer face down on an ESD mat.

• Remove the user access door.

• Remove the feet.

• Remove the rear housing.

• Discharge the CRT.

• Remove the Faraday plate.

eMac (ATI Graphics) Take Apart

Optical Drive

Procedure

1. Disconnect the data cable and the power cable at the top of the optical drive.

2. Remove the four screws connecting the optical drive to the chassis.

3. Holding the optical drive by the top or bottom end, tilt the optical drive out of the chassis. Place the EMI shield on the replacement drive.

Replacement Note:

Remove the EMI shield on the end of the optical drive.

Optical Drive

eMac (ATI Graphics) Take Apart -

Digital Assembly

Tools

This procedure requires the following tools:

• Phillips #2

Part Location

Preliminary Steps

Before you begin, do the following:

• Place the computer face down on an ESD mat

• Remove the user access door

• Remove the feet

• Remove the rear housing

• Discharge the CRT

eMac (ATI Graphics) Take Apart

Digital Assembly

• Remove the fan

• Remove the Faraday plate

• Remove the AirPort Extreme Card (if present)

Digital Assembly

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