Samsung DVD-R129, Service Manual, Page: 160 / 208

1. Input block
This Model has two stereo line input terminals. and internal TV-audio from RF
Tuner Block.
These three Analog audio signal source are converted to digital data by Input
Block.
Input Block has a Multiplexer (IC203), A/D converter (AIC2).
IC203 change it
’
s output by selection control signal from IC601 (Front Micom).
2. Output Block
DVD-R130 has two stereo analog line out terminal, and two digital output
terminal.
Decoded signal by DIC1 is inputted to AIC1 (D/A Converter), then filtered and
amplified by AIC4 (OP-Amp).
And the digital audio signal (IEC-958) is outputted in Optical/Coaxial (S/PDIF)
terminal..
7-9. AUDIO