Copyright©2007 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
Only for training and service purposes
9. Component1, Component2 Audio signal flow chart
*Component1, 2 Audio signal flowchart
Component1
Component2
Input
I
2
S
I
2
S
IEC958
IC401
DTV Controller
IC602
Audio Processor
IC601
Audio Switch
P601
RCA Jack
Speaker
Stereo(L/R)
IC708
Digital Audio Amp.
P501
SPDIF Output
Connector
P706, P707
Audio Output
Connector
The left/right audio signal of component1 and component2 is received in P601 and sent to the audio switch(IC601).
One stereo signal is selected among the received signals in the audio switch(IC601) and sent to the audio
process(IC602).
The stereo signal selected is converted to I
2
S format through the audio processor and sent to the DTV controller to
be sent as output in I
2
S format through the audio decoding process.
This signal is converted to stereo signal(L/R) by the digital audio amp(IC708) and sent to the internal speaker
through the audio output connector(P706, P707).
Also the digital audio data in IC401 is sent as output, PCM data, through P501 through SPDIF format.
