Apple eMac User Manual

							78 eMac Take Apart
 Optical Drive
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 fan.
• Remove the Faraday cage.
• Remove the digital module assembly.
• Remove the hard drive.
• Remove the heatsink.
• Remove the logic board. 
						

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 Optical Drive
Procedure
1. Remove two screws on the right side of the optical carrier.
2. Remove two screws on the left side of the optical carrier. 
						

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 Optical Drive 3. Flip the optical carrier over and disconnect the optical power cable and the optical 
data cable.
4. Remove the cotter pin (#1) from the carrier. Next, lift the heatshield by the metal fence 
(#2), and lastly remove the heatshield in the direction of the arrow (#3) to detach it 
from the carrier.  
						

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 Optical Drive5. Slide the optical drive out of the carrier by pushing it from the back end where the EMI 
cap is located. Note: The EMI cap is not attached to the carrier or the optical drive.  
						

							82 eMac Take Apart
 Display/Analog Assembly
 Display/Analog Assembly
Tools
This procedure requires the following tools:
• No tools are required
Warning: This product contains high voltage and a high-vacuum picture tube. To prevent 
injury, always review CRT Safety on Service Source online. This link can be found under 
the list of topics under the iMac icon. Remember, never use a grounding wriststrap until 
after discharging the CRT and setting up an ongoing ground connection. 
Note: The eMac display/analog assembly requires no voltage calibration or geometry 
adjustment. Should the display require adjustment (focus, color, or brightness) use the 
“Displays” pane under System Preferences if using Mac OS X. If using Mac OS 9, use the 
Monitor Control Panel to make adjustments. If you can not make satisfactory corrections 
with these tools, replace the display/analog assembly.
Part Location 
						

							 eMac  Take Apart - 83
 Display/Analog Assembly
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 fan.
• Remove the Faraday cage.
• Remove the digital module assembly.
• Remove the AirPort card guide.
• Remove the front bezel
• Remove the antenna.
If you remove everything listed in the preliminary steps above, you are left with the display/
analog module. There is nothing more to remove from this module. 
Note: The display/analog assembly contains a non-switching power supply which is preset 
at a 220V configuration.The voltage selection needs to be manually set by the way of a 
voltage jumper. This means if you are operating the computer in a 110V environment, you 
will have to install the voltage jumper. Refer to the Troubleshooting chapter, “Digital/
Analog” 
Replacement Note: If you are returning a defective display/analog module, it is imperative 
that proper packaging guidelines be followed. The packing procedure is included with the 
replacement assembly. Incorrect packaging can result in damaged eMac displays. Please 
read and follow the directions enclosed in the shipping box of the new display prior to 
packaging the defective module.
Failure to package the defective module according to the instructions may result in liability 
for the cost of the damaged display. 
						

							84 eMac Take Apart
 LHR Coil
LHR Coil 
Tools
This procedure requires the following tools:
• Phillips #2 screwdriver
Part Location
Note: This part is used in Europe for line conditioning. If your computer does not have the 
LHR, skip this procedure.
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  Take Apart - 85
 LHR Coil
Procedure
1. Remove the screw located at the bottom of the LHR module.
2. Disconnect the LHR connector located next to the fuse and to the right of the fan. 
						

							86 eMac Take Apart
 LHR Coil 3. Disengage the tabs on the LHR. Note: The tabs (circled below) clip into the divider 
panel. Remove the LHR from the divider panel.  
						

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 LHR Coil