Samsung DVD-709, Service Manual

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Circuit Descriptions
Samsung Electronics 6-19
6-7 Audio
6-7-1 Outline
The four data (Data 0~3) outputted from A/V decoder (VIC1 ; ZiVA-3) are supplied to DATA 0 for 2-channel
mixed audio output and to DATA 1~3 for Analog audio output (5.1-channel).
The audio data (0~3) transmitted from A/V decoder (VIC1 ; ZiVA-3) are converted into analog signal via audio
D/A converter and outputted via post filter and amplifier.
CD and VCD are outputted with only 2 channels audio data and transmit them to Data 0 and Data 1.
Front L/R channel is outputted in mixed audio output (L/R output) and analog audio output and surround L/R,
center and subwoofer arenÕt outputted.
If DVD of 2 channels source disc is used, it is outputted by the same way with CD and VCD.
If 5.1-channel source disc, front L/R channel is outputted in Data 1, Surround L/R in Data 2 and Center/Sub-
woofer in Data 3. At that time, 5.1 channel can be downmixed in 2 channel in Data 0.
AIC2
AK4324
D/A CONVERTER
POST
FILTER
POST
FILTER
AIC1
AK4324
D/A CONVERTER
POST
FILTER
POST
FILTER
POST
FILTER
POST
FILTER
POST
FILTER
POST
FILTER
AMP
AMP
AMP
AMP
AMP
AMP
AMP
AMP
AIC3
AK4324
D/A CONVERTER
AIC4
AK4324
D/A CONVERTER
VIC1
(ZiVA-3)
A/V Decoder
DATA0
LRCK
BCK
DATA1
DATA2
DATA3
CENTER
SURROUND-L
SURROUND-R
L
R
FRONT-L
FRONT-R
SUB WOOFER
Mixed Audio Output (2-Channel)
Analog Audio Output (5.1-Channel)
Fig. 6-24 Audio Output Block Diagram