Karaoke Block Diagram(Karaoke Model Only) - LG DKE573XB Service Manual

6. KARAOKE Block Diagram(KARAOKE MODEL ONLY)

Microphone
Microphone1
PREAMP
(BA3308)
1 The unit turns to KARAOKE MODE with ou-screen lyrics display and melody sound when it play backs
VCD or DVD KARAOKE DISC.
2. IF a microphone is connected at this time, MICON recoguizes the connection and prepares the compo-
sition of external voice and internal melody.
3. The week signal of the microphone is converted to the digital signal after voice output that has passed
through PREAMP(BA3308) and AMP(KA741) passes through(CS5331) that is Audio ADC(Analog to
Digital convertor).
4. This digital signal enters NT1389C that is MPEG IC
5. This mixed signal is output to AV JACK after passing through AUDIO DAC(CS4344).
Signal AMP
(KA741)
AUDIO
ADC
(CS5331)
(Block Digram)
3-28
AUDIO
MPEG
DAC
(MT1389C)
(CS4344)