Apple emac ati usb2 2005 サービスマニュアル

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62 - eMac ATI Graphics/ USB 2.0/2005 Take Apart
 Down Converter
Replacing the Down Converter
1.
Important: Be careful when installing the down converter; the board is fragile.  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.   
2.
With the down converter in place, squeeze the pins (circled below) and the connector 
together for a solid connection.