Sharp LC-20AV7U Service Manual - Page 31

DTV Module Block Diagram NOTE: CBA AND PWB MEANS PRINTED WIRING BOARD. TU61 (TUNER UNIT) DIF-OUT1 10 DIF-OUT2 11 DIF-AGC 8 CN62 11 DIF-OUT1 12 DIF-OUT2 9 DIF-AGC CN102 11 LPF 12 9 IC101 (DTV SIGNAL PROCESS) 174 ADC 178 /AGC I/F 140 X271 27MHz OSC 14 XIN-27MHz 15 XOUT-27MHz X281 25MHz OSC 4 XIN-25MHz 5 XOUT-25MHz DIGITAL SIGNAL PROCESS SYSTEM DECODER /VIDEO DECODER /VIDEO FORMAT CONVERTER /2D GRAPHICS VIDEO SIGNAL AUDIO SIGNAL VIDEO ENCODER Q243 182 BUFFER Q245 187 BUFFER Q244 186 BUFFER IC252 (AUDIO D/A CONVERTER) CN102 CN62 18 DTV-Y 18 19 DTV-Pr 19 20 DTV-Pb 20 15 DTV-AUDIO(L) 15 16 DTV-AUDIO(R) 16 159 158 AUDIO 162 DECODER 161 156 SDA 144 SCL 143 BUS-CONT 41 6 AUDIO L-CH 5 D/A 15 R-CH 7 CONVERTER 14 8 Q251 BUFFER Q212 SW CN101 2 DTV-SPDIF 14 SDA 15 SCL Q211 SW 5 TU-SDA 4 TU-SCL CN61 2 14 15 5 4 SDRAM I/F DATA BUS(0-15) *1 ADDRESS BUS(0-12) *2 Q214 Q213 FLASH MEMORY I/F DATA BUS(0-15) *3 ADDRESS BUS(1-20) *4 DTV-Y DTV-Pr DTV-Pb TO LCD BLOCK DIAGRAM DTV-AUDIO(L) DTV-AUDIO(R) DTV-SPDIF TO AUDIO BLOCK DIAGRAM SDA SCL TO SYSTEM CONTROL BLOCK DIAGRAM *1 79~81,85,87,89~91,92,94,96~98, IC202 (FLASH MEMORY) 102,104,106 *2 55,56,58,60,61,116,119,120,124, *5 125,127,129,130 *3 1,2,7~12,20,206,209,211,213~216, *4 23~25,27,29,32~36,41~44,47,48,50, FLASH MEMORY *6 52~54,205 *5 1~9,16~25,48 *6 29~36,38~45 IC201 (DDR SDRAM) *7 28~32,35~42 *8 2,4,5,7,8,10,11,13,54,56,57,59,60, 62,63,65 *7 DDR SDRAM *8 DTV MODULE CBA UNIT 8-4 A7144BLDTV SCL 4 SDA 5 MAIN CBA