Sanyo LCD-22XR9DZ Service Manual page 16

4、 PC/YPbPr signal flow
PC/YPbPr video signal inputted into main chip MSD209 to be processed by
modules of "A/D transform, digital video process and OSD addition", then LVDS
signal is outputted to drive LCD panel.
PC/YPbPr audio signal is processed by circuits of "voltage divided,
impedance matching and alternating-current coupling", then inputted into main
chip MSD209 directly for acoustic process and volume control, afterwards the
audio signal is inputted into left and right sound tracks of earphone amplifier
BH3547F directly to be amplified, now the audio signal is divided into two, one is
outputted to earphone jack directly, the other is inputted into audio power
amplifier TDA7266SA (AB type) to be amplified and then outputted to speakers.
5、 HDMI signal flow
HDMI video signal inputted into main chip MSD209 to be processed by
modules of "digital video process and OSD addition", then LVDS signal is
outputted to drive LCD panel.
HDMI audio signal is decoded into Dolby AC-3 signal or MPEG multi-sound-
track digital audio signal by inner decoder of main chip MSD209, then one is
outputted through SPDIF directly; after the process of "sub-transform and DAC",
the other is outputted as analog audio signal with double-sound-track (stereo),
the analog audio signal is inputted into the rear part of main chip MSD209 for
acoustic process and volume control, then inputted into left and right sound
tracks of earphone amplifier BH3547F respectively to be amplified, now the
audio signal is divided into two, one is outputted to earphone jack directly, the
other is inputted into audio power amplifier TDA7266SA (AB type) to be
amplified and then outputted to speakers.
6、 Brief instruction on unit functions
MPEG-2 MP@HL、H.264 Main and High profile up to Leve4.0 Decoding
MPEG、Dolby Digital（AC-3）、AAC Digital Audio Decoding
3D comb filter
Low consumed power in standby mode（≤1W）
Audio power amplifier (AB type) with HI-FI acoustic output
High quality transformation from interleaved scanning to line-by-line scanning
Realizing real integrative functions
- build integration
- integrative TUNER（integrating analog with digital）
- integrative searching-program function
- integrative OSD interface
Main parts of the unit：
22 inch CPT LCD panel（1366X768）
Main chip：MStar MSD209FG-LF
Demodulating chip：Intel CE6353
TUNER：Nutune FQD1116ME/IV
DDR：SAMSUNG K4T51163QC-HCF7
Audio power amplifier (AB type)：ST TDA7266SA