Sanyo LCD-32E30A Service Manual

Also see for LCD-32E30A: Owner's manual Owner's manual Instruction manual

Contents

Sanyo LCD-32E30A Service Manual Manual pdf 18 page image

18Working principle analysis of the unit1. PAL and DVB-T signals flow:Antenna reception, B/G, I, D/K, DVB-T” signal will be send to tuner FQD1116ME, t h e n T u n e r w i l lb e demodulating and output standard video signal TV-CVBS, DVB-T and sound IF signal (SIF).TV-CVBS will send to the master control IC ZR39670HGCF to video decode, de-interlace and scaler,then output LVDS level drive for panel display.DVB-T will be fed into WJE6353, after OFDM demodulator, the digital signal will be transform intoMPEG transport stream out by DVB-T COFDM Terrestrial IC and sent to scaler IC ZR39670HGCFprocessing, then output LVDS level drive for panel display.The sound IF (SIF) will be fed into MSP4410K, after demodulating, pre-amplifying, bass adjustingand volume control, the sound signal will b e t r a n s f o r m i n t o d i g i t a l I 2 S s i g n a l b y SoundProcessor I C and sent to digital amplifier TAS5706 amplifying, then sent to speaker. AboutEarphone output, MSP4410K will be sent analog signal to earphone amplifier TPA6110 thenoutput to Earphone.2. AV/SV signal flowSV signal and the Video1 path AV signal switch by menu “Setup”->“AV Connecting”->”Video1input” via terminal socket, the signal and the Video2 path AV signal will be fed to ZR39670HGCFto perform video decode, de-interlace and scaler, then output LVDS drive level for panel display.Audio signal from AV/SV terminal via matched resistance is fed to MSP4410K to bass adjust andvolume control, the sound signal will be transform into digital I2S signal by Sound Processor IC andsent to digital amplifier TAS5706 amplifying, then sent to speaker. About Earphone output,MSP4410K will be sent analog signal to earphone amplifier TPA6110 then output to Earphone.3. PC/YPrPb signal flowPC and the Video3 path YPbPr signal are via terminal sent to ZR39670HGCF A/D conversion,output R/G/B of 24 bit to back end module to digital decode, image scale, then send to LVDSlevel drive for panel display.Sound signal of PC/YPrPb t e r m i n a l via matched resistance a n d sent to MSP4410K to bassadjust and volume control, the sound signal will be transform into digital I2S signal by SoundProcessor IC and sent to digital amplifier TAS5706 amplifying, then sent to speaker. About Earphoneoutput, MSP4410K will be sent analog signal to earphone amplifier TPA6110 then output toEarphone.4. HDMI signal flowThree HDMI video signals via switcher Sil9185 are directly fed to the master control ICZR39670HGCF to digital decode, image scale, then output LVDS drive level for panel display.HDMI audio signal via decoder built-in ZR39670HGCF is transform into digital I2S signal by scalerIC, and sent to MSP4410K to bass adjust and volume control, the sound signal will sent to digitalamplifier TAS5706 amplifying, then sent to speaker. About Earphone output, MSP4410K will besent analog signal to earphone amplifier TPA6110 then output to Earphone.