Sharp LC32DV24U Service Manual - Page 69

A B 8 7 FROM JACK2 ROUT_SOUND LOUT_SOUND FILTER_MUTE POP_MUTE 6 FROM POWER SOUND+B 5 SOUND_GND P_GND FROM POWER2 P.CON+5V R303 3.3K FROM/TO REGULATOR (A_GND) GND 4 R305 10K W819 C D E F SOUND SCHEMATIC DIAGRAM (POWER PCB) G H 8 C307 1B SOUND AMP IC IC302 AN17808B + ATT. + RIPPLE NC CH1 IN FILTER RF GND CH2 IN 1 2 3 4 5 NC 0.2 20.0 0 0.2 + + - - ATT.CONT. NC CH2 OUT MUTE 6 7 8 0 NC 0.7 0 GND VCC STAND -BY CH1 OUT 9 10 11 12 0 19.0 3.3 0.7 C341 1B C348_1 C342 0.0047 B C343_1 25V 100 MHE C344 0.0047 B C345_1 50V 1 MHE GND 0 5.0 3.3 STANDBY SW Q307 KRC103SRTK W867 C346_2 35V 470 ZL 16V 100 MHE R334 3.9K R335 R336 3.9K 4.7K R337 4.7K C349_1 25V 1000 MHE C350_1 25V1000 MHE W829 C358 0.1 B C357 0.1 B 17 W826 18 7 CP302 A2502WR-4A SP OUT L GND GND SP OUT R CD301 E8145002 (L) SPEAKER SP302 1 1 S0412F06 2 2 3 3 SPEAKER 4 4 SP301 S0412F06 (R) 6 HS92 HS302 763WAA0368 W828 C359_2 5 1F 4 3 3 2 NOTE:THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME 1 OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE NOTE:THE DC VOLTAGE AT EACH PART WAS MEASURED WITH THE DIGITAL TESTER WHEN THE COLOR BROADCAST WAS RECEIVED IN GOOD CONDITION AND PICTURE IS NORMAL. A B C H-41 CAUTION:SINCE THESE PARTS MARKED BY ARE CRITICAL FOR SAFETY,USE ONES DESCRIBED IN PARTS LIST ONLY D E 2 ATTENTION:LES PIECES REPAREES PAR UN ETANT DANGEREUSES AN POINT DE VUE SECURITE N'UTILISER QUE CELLS DECRITES DANS LA NOMENCLATURE DES PIECES F PCB240 CEG353 CAUTION: DIGITAL TRANSISTOR 1 G H H-42