Apple performa 6200.6300 Servicehandbuch

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 Basics
TV Tuner Module - 10
 
TV Tuner Module
 
The TV tuner, an optional module included with the Apple 
TV/Video System, turns the computer into a television 
receiver. The TV tuner requires the video-in card, which is 
also included with the Apple TV/Video System. 
The TV tuner receives incoming television signals from 
cable or antenna television input and then sends the 
information to the video-in card, which converts the data 
for display on the screen. In the United States, only NTSC is 
supported, but PAL and SECAM are available internationally.