Working Principle Analysis - Sanyo LCE-32R83DT Service Manual

Led-lcd tv
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Working principle analysis of the unit
RF signal from antenna is sent into Tuner chip N401 to be processed by
HF-amplifier and mixer to get digital IF signal DIF, then DIF signal is sent to
main chip N101(MST6E182VG).
HDMI signal is sent to HDMI switch chip N201 to be switched by
three-way-signal-selection switch and then sent to main chip N101
(MST6E182VG).
Video and audio signals from AV, YPbPr , VGA, USB are sent to main chip
N101(MST6E182VG)directly.
Main chip N101 (MST6E182VG) is a special large scale IC with full functions,
such as HDMI interface processing, video decoding, video switch selection,
A/D and D/A transformation, interleaved/successive scan processing, mode
transformation, OSD and low-voltage difference output processing, etc.;
furthermore, it also has functions of audio selection and audio processing,
MCU, etc.; external video signal is processed by main chip N101
(MST6E182VGC), then 4 pairs of difference signals and one pair of clock
signals are outputted to LCD to display; external audio signal processed by
main chip N101(MST6E182VG) is sent to sound amplifier N402 to be
amplified and then sent to speakers.

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