Sony STR-DB1070 Service Manual - Page 15

5-2. SCHEMATIC DIAGRAM - DIGITAL Board (1/5) - • See page 38 for Waveforms. • See page 38 for IC Block Diagrams. AM FM 75Ω COAXIAL *FM/AM TUNER UNIT STEREO TUNED MUTING R CH GND L CH FM DET OUT VDD 12V VDD 3.3V FMIF OUT GND DO CLOCK DATA CE *SUPPLIED AS THE ASSEMBLED BLOCK (Page 23) DVD/LD OPTICAL IN DIGITAL TV/SAT OPTICAL IN (DB870) MD/TAPE OPTICAL IN MD/DAT OPTICAL IN (DB1070) (DB870) MD/TAPE OPTICAL OUT MD/DAT OPTICAL OUT (DB1070) DVD/LD COAXIAL IN J1401 1P (CHASSIS) CN1105 15P B1 B2 B3 P1 C1306 C1307 0.1 0.1 R1304 39k P2 C1308 R1303 0.1 39k B4 B5 B6 B7 B8 * CN1104 21P (US,CND) 15P (DB1070:AEP,UK,E,CH) 11P (DB870:AEP,UK) +12V REGULATOR OI G C1309 100 16V IC1301 7812 C1310 100 16V G OI IC1302 2933 RDS DECODER C1315 0.1 C1313 47p C1314 82p X1301 4.332MHz R1307 2.2k R1308 100 IC1303 BU1924F T2 CMP T1 VSS3 VSS2 VSS1 VDD2 VDD1 XI MUX XO VREF NC RDAT RCLK QUAL L1201 0 C1319 1000p C1320 0.1 C1317 10 50V C1318 10 50V C1316 330p (AEP,UK) CN1104 * (US,CND) MBUS_OUT MBUS_TV MBUS_DVD MBUS_V1 SIRCS +5V(B_UP) OSD_DATA OSD_CS OSD_CLK V-SYNC DB870:CND /DB1070 P/N GND_A1 CTRL A1 V_SW1 V_SW2 V SW3 V SW4 -5V +5V GND GND R1809 10k A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 +5V REGULATOR IC1801 7805 O I G Q1801 2SB733 B+ SWITCH R1801 680 C1801 100 16V Q1802 RT1N141C V POWER ON/OFF FB1401 21A DIGITAL OPTICAL RECEIVER IC1401 TORX179 R1406 100 +3.3V REGULATOR R1802 10k +5V REGULATOR IC1802 7805 OI G Q1803 2SB733 B+ SWITCH R1803 680 C1802 470 16V Q1804 RT1N141C D POWER ON/OFF D1801 1SR154 IC1803 2905 I O G R1804 10k +5V REGULATOR C1411 10 50V FB1402 21A C1413 0.1 IC1406 TC74HC153 R1415 10k R1417 10k R1414 10k R1416 10k C1419 0.1 C1420 1000p R1419 10k Q1402 2SC2712 INVERTER C1807 220 16V R1420 C1421 10k 0.1 C1402 0.1 DIGITAL OPTICAL RECEIVER IC1402 TORX178 DIGITAL OPTICAL RECEIVER IC1403 TORX178 DIGITAL OPTICAL TRANSCEIVER IC1404 TOTX178A R1407 100 C1403 0.1 R1408 100 C1404 0.1 C1405 0.1 R1402 100 C1427 0.1 C1406 22 50V Q1401 2SC2712 INVERTER DIGITAL SELECT FB1403 21A R1412 5.6k C1415 0.01 R1410 R1413 33k 4.7k R1403 1k R1404 560k INVERTER IC1405 TC7WU04F R1409 22k C1409 0.1 R1405 100 C1412 R1411 0.1 100 C1416 0.22 C1417 0.1 C1418 47 16V FB1404 21A C1414 0.1 CLOCK SELECT IC1407 TC7WH157FU R1435 100 R1436 100 FB1406 21B DIGITAL AUDIO INTERFACE RECEIVER IC1408 LC89056W-E C1422 0.1 R1424 100 R1437 220 FB1407 21B C1401 0.01 R1401 75 R1429 0 FB1405 471 R1418 100 R1422 100 H7 H6 H5 H4 IC1804 2933 I O G +3.3V REGULATOR C1808 470 16V R1425 100 C1425 100p R1428 4.7k R1430 100 R1427 1k C1423 C1431 0.1 220 16V COUNTER IC1409 TC7WH74FU R1426 100 C1428 0.1 R1432 100 OSC R1434 100 GND C1426 47 16V C1424 0.1 VCC IC1410 TC7WU04F H3 H2 R1433 150 C1429 15p R1431 X1401 1M 24.576MHz 7C H1 R1421 100 R1423 100 VCC C1408 1p 1A GND C1410 470 16V 2C 3C 4C 8C 6C 5C (Page 16) (Page 18) 15 15 C1430 15p 9C 10C 11C 1B 2B 3B 4B 5B 6B 7B 8B 9B 10B 11B 12B 13B 14B 15B 16B 17B 18B 19B 1D 2D STR-DB870/DB1070 L1 L2 L3 D1802 1SS352 L4 L5 L6 L7 L8 CN1106 9P SUB T V.POWER PW_RY +8V GND STOP +32V FL2 FL1 MD2 MD0 RESET GND VDD SIN1 SOT1 CN1107 7P (Page 37) (Page 17) (Page 19)