Sanyo LCD-40XZ10F Service Manual

Also see for LCD-40XZ10F: Instruction manual

Working principle analysis of the unit1、 PAL/SECAM signal flowPAL/SECAM signal from antenna is inputted into TUNER FQD1116 which isan analog-digital-integrative model, the analog RF signal is demodulated by theTUNER, then CVBS signal and SIF(sound intermediate frequency) signal areoutputted. TUNER FQD1116 is controlled by main chip MSD209（with embeddedCPU) through I2C bus.TV CVBS signal is inputted into main chip MSD209 directly to be processedby modules “VIDEO DECODER、DEINTERLACE and SCALER”, then LVDSsignal is outputted to drive LCD panel.SIF audio signal is inputted into main chip MSD209 directly and processedby modules of demodulation, pre-amplification, acoustic effect processing andvolume control, then the audio signal are inputted into left and right sound tracksof earphone amplifier BH3547F to be amplified and then are divided to twosignals, one is outputted to earphone jack, the other is inputted into class D audiopower amplifier R2A15112 to be amplified and then be outputted to speakers.2、 DVB-T signal flowDVB-T signal from antenna is inputted into TUNER FQD1116 to be tuned,RF amplified, IF amplified and SAW FILTER inside, then IF signal is outputted todemodulating chip CE6353 to be demodulated and then be inputted into mainchip MSD209 with format of standard serial or parallel TS stream for demultiplexingand decoding.Video route: demultiplexed video signal is decoded by main chip MSD209and then digital video signal is outputted; in the end LVDS signal is outputted todrive LCD panel after a series of digital processes and OSD addition within mainchip MSD209.Audio route: demultiplexed audio signal is decoded into Dolby AC-3signal or MPEG multi-sound-track digital audio signal by inner decoder of mainchip MSD209, then one is outputted through SPDIF directly; after the process of“sub-transform and DAC”, the other is outputted as analog audio signal, the analogaudio signal is inputted into the rear part of main chip MSD209 for acoustic effectprocessing and volume control, then inputted into left and right sound tracks ofearphone amplifier BH3547F respectively to be amplified, now the audio signal isdivided into two, one is outputted to earphone jack directly, the other is inputted intoclass D audio power amplifier R2A15112 to be amplified and then outputted to speakers.3、 AV signal flowAfter processed by impedance matching, AV video signal is inputted intomain chip MSD209 directly and processed by modules of “VIDEO DECODER、DEINTERLACE and SCALER”, then LVDS signal is outputted to drive LCDpanel.AV audio signal is processed by circuits of “voltage divided, impedancematching and AC coupling”, then inputted into main chip MSD209 directlyfor acousticeffect processing and volume control, then inputted into left and right sound tracks ofearphone amplifier BH3547F respectively to be