Sony STR-K790 Service Manual - Page 32

STR-K790 4-19. SCHEMATIC DIAGRAM - DISPLAY BOARD - • See page 38 for IC Block Diagrams. 1 A B C D E F G H K POWER BOARD CNP152 I (Page 34) 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DISPLAY BOARD FL101 FLUORESCENT INDICATOR TUBE 2 R199 2.2 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G 9P 8P 7P 6P 5P 4P 3P 2P 1P 53 R198 2.2 10P 11P 12P 13P 14P 15P 16P 17P 11G 10G 9G 8G 7G 6G JW146 5G 4G JW147 S103 3G AUTO CAL. 2G S103 1G R103 47 0 S104 DISPLAY JW109 AD1 PW_SW GND CN101 3P CL125 1 CL127 2 CL128 3 C144 0.1 21 10P 21 11P 21 12P 14 13P 17 14P 21 15P 16P 22 17P 21 SEG17 22 GRID10 20 C161 10 50V R121 10 33 32 31 30 29 28 27 26 25 24 23 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 VEE GRID11 -20 34 GRID9 -20 35 GRID8 -20 36 GRID7 -20 37 GRID6 -20 38 GRID5 -20 39 GRID4 -20 40 GRID3 -20 41 GRID2 -20 42 GRID1 -20 43 VDD 44 VSS IC B/D IC100 FL DISPLAY DRIVER IC100 PT6315 -16 9P SEG9 22 8 8P SEG8 21 0 7P SEG7 20 -10 6P SEG6 19 -19 5P SEG5 18 0 4P SEG4 17 -21 3P SEG3 16 -17 2P SEG2 15 -9 1P SEG1 14 5 VDD 13 VSS 12 SW1 SW2 SW3 SW4 OSC 2.8 DOUT DIN 0 CLK 0 STB 5 KEY1 KEY2 C101 0.1 1 2 3 4 5 6 7 8 9 10 11 R118 82k C100 0.1 C146 50V 10 C145 0.1 C152 0.1 JW102 C147 10 220 p 5 5 5 3.3 5 14 13 12 11 10 9 8 R116 100 R115 100 C112 220p C111 220p R117 10 0 C110 220p IC B/D IC101 ELECTRONIC VOLUME IC101 TC74ACT08P 1 2 3 4 5 6 7 5 3.3 5 0.7 5 0 C149 220p C148 220 p JW103 10 CL119 CN104 3P 1 -20V 2 F1 3 F2 CL120 CL121 RV102 C107 2200p CL104 CL105 CL106 2 C151 0.1 1 1 MASTER VOLUME INPUT SELECTOR RV101 3 2 3 C106 2200p CL107 CL108 CL109 CL110 CL111 CL112 CL113 CL114 CL115 CL116 CL117 CL11 8 CL103 JW120 5.5 IC102 REMOTE CONTROL RECEVER RPM7240-H4 IC102 1 3.3 3.3 VCC OUT GND 2 R119 10 0 3 C150 0.1 JW101 CNS102 17P 1 DC-CONTROL 2 GND 3 GND 4 +3.3V(STDBY ) 5 +5V 6 VOL_JOG_2A 7 VOL_JOG_2B 8 PW_SW 9 SIRCS 10 AD2 11 AD1 12 FL_LAT 13 FL_DI N 14 FL_CLK 15 INPUT_JOG_4A 16 INPUT_JOG_4B 17 DCAC_IN I MAIN BOARD (2/4) CNP908 (Page 28) H DIGITAL BOARD (4/5) CNS513 (Page 21) CNP102 2P 1 DCAC_IN (CN2001) 2 DC-CONTROL (CN2001) L DCAC BOARD CN2001 (Page 34) No mark : FM STR-K790 32 32