Apple powermac g3 blue.white Service Manual

 Basics

Sound - 35

The Burgundy IC provides the stereo sound output to both 

the internal speakers and the sound output jack. The sound 

output jack has the following electrical characteristics: 

• output sound signal to noise ratio (SNR) <90 dB 

unweighted (typical) when sound playback is from 

system hard disk drive or main memory 

• output sound SNR <80 dB unweighted (nominal) when 

playback is from CD 

• overall output sound SNR <90 dB unweighted (typical)

The Power Macintosh G3 computer provides a stereo sound 

input jack on the back of the enclosure for connecting an 

external PlainTalk microphone or other sound source. The 

sound input jack accepts a standard 3.5-mm stereophonic 

phone plug (two signals plus ground).