Apple emac ati usb2 2005 Servicehandbuch

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eMac ATI Graphics/USB 2.0/2005 Troubleshooting
No Power Symptom Charts
 
No Power
 
The fan clicks (and may spin briefly), but does not turn on and you may hear the degauss 
cable fire.
 
1.
Replace the down converter. Hold the down converter by the top of the board (as shown below). 
Carefully slide the down converter onto the logic board in the direction of the arrow. 
 
Important:
 
  The 
down converter board is fragile. Be careful not to flex the board sideways when removing or installing 
the board. 
2.
With the down converter in place, squeeze the pins and the connector together for a solid connection.   
3.
Assemble the computer and test for power. Do you have power now? If yes, test the system and return 
the computer to the customer. If no, proceed to the next symptom, “The computer will not power on”.