Apple power mac g4 cube User Manual

							 
Power Mac G4 Cube Take Apart -  
19 
 Plastic Shell from Enclosure5. Lift the plastic shell off of the grill. 
6. Position the replacement plastic shell over the grill. 
7. Before installing the liner in the shell, check that the power button is in place. If the 
power button gasket assembly has slipped out of the socket, install it under the gray 
cover sheet. Hold it in place as you slide the liner in the replacement shell. 
8. Turn the grommets so that a corner of their flat edge locks the grill into place. 
Hold each grommet in that position as you tighten the Torx screws.  
9. Install the two Phillips screws. 
						

							 
20 -  
Power Mac G4 Cube Take Apart
 Plastic Shell from Enclosure 10. 
Caution: 
  If the power button gasket assembly is not centered correctly in the shell, 
the computer might not power up. Make sure the power button gasket assembly is 
level and centered in place.
11. Reassemble and test the computer. 
Warning: 
  
Never turn on the computer unless all of its internal and external 
parts are in place and it is closed. Operating the computer when it is open or 
missing parts can damage the computer or cause injury. 
						

							 
Power Mac G4 Cube Take Apart -  
21
 Top Plate Assembly with Power Button Gasket
Top Plate Assembly with Power 
Button Gasket
Tools
The only tool required for this procedure is a Torx T10 screwdriver.
Preliminary Steps
Before you begin, remove the computer core from the enclosure.
Procedure
1. Press the latch in, and turn over the core so the power button faces up.
2. Remove the four corner screws that secure the top plate to the four vertical posts.
3. Remove the four screws on the two sides. (The two screws that align with the vertical 
plates are much longer than the other screws.)
  
						

							22 - Power Mac G4 Cube Take Apart
 Top Plate Assembly with Power Button Gasket 4. Lift out the LED cover that is Þtted over the power button LED. Set the LED cover 
aside for installation on the new top plate assembly.
 
5. Carefully lift up the top plate and disconnect the keyed connector (J1 on the logic 
board). 
						

							Power Mac G4 Cube Take Apart - 23
 Top Plate Assembly with Power Button Gasket6. With the replacement top plate assembly in hand, connect the cable from the top plate 
to the J1 connector on the logic board. 
Warning: To prevent damage to the power board, ensure the keyed connector fits 
into the J1 connector as shown. 
						

							24 - Power Mac G4 Cube Take Apart
 Top Plate Assembly with Power Button Gasket 7. Install the LED cover over the power button LED on the replacement top plate 
assembly.
8. Position the top plate assembly over the core. Ensure that the four metal tabs align 
with the four slots in the top plate, and the DVD-ROM panel tucks in under the lip of 
the top plate.
9. Starting with the four corner screws, secure the top plate to the core with all eight 
screws. 
						

							Power Mac G4 Cube Take Apart - 25
 Top Plate Assembly with Power Button Gasket10. Locate the power button gasket that came with the new top plate assembly. Install the 
gasket inside the enclosure as follows: 
¥ Place your hand in the enclosure and lift out the installed gasket. 
¥ Insert the new power button gasket into the recessed area that encircles the power 
button. 
¥ Press the gasket into place to make sure that it is secure.
11. Reassemble and test the computer.
Warning: Never turn on the computer unless all of its internal and external 
parts are in place and it is closed. Operating the computer when it is open or 
missing parts can damage the computer or cause injury. 
						

							26 - Power Mac G4 Cube Take Apart
 Top Plate Cable
Top Plate Cable
Tools
The only tool required for this procedure is a Torx T10 screwdriver.
Preliminary Steps
Before you begin, remove the following:
¥ Computer core from enclosure
¥ Top plate assembly
Procedure
1. Lift up the top plate and disconnect the keyed connector (J1 on the logic board). 
						

							Power Mac G4 Cube Take Apart - 27
 Top Plate Cable2. Disconnect the cable from the power board.
3. Connect the replacement cable to the power board on the top plate.
4. Connect the other end of the replacement cable to the J1 connector on the logic 
board. 
Warning: To prevent damage to the power board, ensure the keyed connector fits 
into the J1 connector as shown.
5. Reassemble and test the computer.
Warning: Never turn on the computer unless all of its internal and external 
parts are in place and it is closed. Operating the computer when it is open or 
missing parts can damage the computer or cause injury. 
						

							28 - Power Mac G4 Cube Take Apart
 Power Button Board
Power Button Board
Tools
The only tool required for this procedure is a Torx T10 screwdriver.
Preliminary Steps
Before you begin, remove the following:
¥ Computer core from enclosure
¥ Top plate assembly
Procedure
1. Disconnect the top plate cable from the power button board.
2. Remove the two screws from the board.
3. Lift the board off of the top plate.