Copyright©2007 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
Only for training and service purposes
11. PC(DVI) Audio signal flow chart
*PC(DVI) Audio signal flowchart
PC(DVI)
Input
I
2
S
I
2
S
IEC958
IC401
DTV Controller
IC602
Audio Processor
IC601
Audio Switch
P602
Phone Jack
Speaker
Stereo(L/R)
IC708
Digital Audio Amp.
P501
SPDIF Output
Connector
P706, P707
Audio Output
Connector
PC audio signal or DVI audio signal is received in P602 to be sent to the audio switch(IC601).
One stereo signal among the signal received by the audio switch(IC601) is selected and sent to the audio
process(IC602).
Selected stereo signal is converted to I
2
S format by audio processor to be sent to DTV controller and outputted in
I
2
S format through audio decoding process.
This signal is converted to stereo signal(L/R) by digital audio amp(IC708) and sent to the internal speaker through
audio output connector(P706, P707).
Also the digital audio data in IC401 is outputted as PCM data in SPDIF format through P501.