Apple eMac User Manual

							 
8  
eMac Take Apart
 Rear Housing 
Procedure
 
1. Remove three screws located below the user access door (these three screws are 
longer that the rest of the rear housing screws). 
2. Remove the six remaining rear housing screws. 
						

							 
 eMac  Take Apart -   
9  
 Rear Housing3. Gently lift the rear housing up about 2 inches.  
Warning:  
 If you lift the housing too fast, 
the power button (on the inside of the housing) can become permanently damaged or 
the machine may not power on. 
4. Carefully disconnect the power cable from the power button located inside the rear 
housing. Lift the rear housing off the computer. 
						

							 
10  
eMac Take Apart
 Power Button 
 Power Button
 
Tools
 
• needlenose pliers
• 
Note: 
 Follow this take-apart procedure 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 feet.
• Remove the rear housing. 
						

							 
 eMac  Take Apart -   
11  
 Power Button 
Procedure
 
1. Disconnect the power cable from the power button located inside the rear housing. Lift 
the rear housing off the computer.
2. 
Note: 
 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. 
						

							 
12  
eMac Take Apart
 Power Button 3. Save the retaining ring (shown below)
4. 
Replacement Note: 
 Obtain a 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).  
Note: 
 The picture below is looking at the power button from the inside of the 
rear housing.
5. Place the retaining ring over the power button connector and press down firmly.  
						

							 
 eMac  Take Apart -   
13  
 CRT Discharge 
CRT Discharge
 
Warning: 
 This product contains high voltage and a high-vacuum picture tube. To prevent 
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: 
  Never use a grounding wriststrap until after discharging the CRT and setting up 
an ongoing ground connection.  
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. 
						

							 
14  
eMac Take Apart
 Speakers 
Speakers
 
Tools
 
This procedure requires the following tools:
• Jeweler’s #1 screwdriver (for removing metal plate on speaker assembly) 
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  Take Apart -   
15  
 Speakers 
Procedure
 
1. 
Note: 
 The speaker assembly is not screwed down. Gently pull the speaker assembly 
in the direction of the arrow.
2. Disconnect the speaker cable on the left side. Lift the speaker assembly out of the 
computer.  
						

							 
16  
eMac Take Apart
 Fan 
Fan
 
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  Take Apart -   
17  
 Fan 
Procedure
 
1. With the fan facing you, disconnect the two circled screws and disconnect the fan 
cable. 
2. On the right side of the fan, remove two screws (one of which is the ground screw), 
and disconnect the fan power cable 
.