Sony STR-K790 Service Manual - Page 20

STR-K790 4-7. SCHEMATIC DIAGRAM - DIGITAL BOARD (3/5) - • See page 35, 36 for IC Block Diagrams. 1 A B C D E F G H F MAIN BOARD (1/4) I CNP501 (Page 27) J K 2 3 4 5 6 7 8 9 10 11 12 9 DIGITAL BOARD (1/5) (Page 18) 80 84 85 86 87 DIGITAL BOARD (3/5) C LINK_L AGND C LINK_R T.L OUT GND T.R OUT L IN GND R IN R OUT +7V L OUT SW OUT MAIN AGND C OUT CL043 15 14 CL042 13 12 11 10 9 8 7 6 CL040 5 4 3 CL041 2 CL045 1 CNS501 15P C1362 0.01 R1474 10k C1494 0.1 FB1453 0uH C1454 0.1 C1457 10 50V FB1403 0uH IC1401 AD CONVERTER IC B/D PCM1803DBR IC1401 1.6 3.3 1.4 R1401 1.7 100 C1403 10 50V C1404 0.1 20 19 18 17 16 15 14 13 12 11 DOUT DGND VDD SCK OSR FMT0 FMT1 MODE0 MODE1 FSYNC BYPASS PDWN AGND VCC V REF 2 V REF 1 RIN LIN 1 2 3 4 5 6 7 8 9 10 1.7 3.2 5.1 4.9 2.6 2.6 2.6 C1414 0.01 C1408 0.1 C1405 0.1 FB1405 0uH R1409 0 R1410 470 R1411 470 C1415 0.01 C1487 2200p C1002 0.47 2 C1001 470 10V 1I 7 G O3 5.1 IC1001 TA7805S IC1001 +5V REG R R1486 1k C1448 10 50V C1547 2200p C1438 R1446 1k 10 50V L SW C1566 2200p R1476 1k C1468 10 50V C1569 2200p C R1436 1k C1428 10 50V C1407 10 C1406 10 C1401 0.1 50V 50V C1402 47 16V C1409 0.01 R1407 100 LRCK BCK PCM1803_BCK PCM1803_LRCK TUNER_L TUNER_R PCM1609_SCK PCM1803_LRCK PCM1803_BCK DOUT PCM1609_DATA3 PCM1609_DATA2 PCM1609_DATA1 PCM1609_LRCK PCM1609_BCK PCM1609/1803_RST PCM1609_ML PCM1609_MDI PCM1609_MC C1455 10 50V C1450 0.1 PCM1609_MDO R1469 100 36 35 34 33 32 31 30 29 28 27 26 25 3.3 ML 3.3 MC 0 MDI 0 MDO ZERO8(1602_NC) DATA4(1602_NC) ZERO7(1602_NC) NC 5 VCC1 AGND1 5.1 VCC2 AGND2 FB1452 0uH C1004 0.1 3.2 37 2.3 38 39 1.6 40 1.6 41 42 3.3 43 44 1.3 45 1.3 46 1.3 47 48 C1005 0.1 RST(A_LOW) SCKI SCKO BCK LRCK TEST VDD DGND DATA1 DATA2 DATA3 ZEROA IC1452 AUDIO CODEC IC1452 PCM1602APT IC B/D VCC3 AGND3 VCC4 AGND4 VOUT8(1602_NC) AGND6 VCC5 AGND5 VOUT7(1602_NC) VCOM VOUT1 VOUT2 5.1 24 23 5.1 22 21 20 19 5.1 18 17 16 2.6 15 2.6 14 2.6 13 1 2 3 4 5 6 7 8 9 10 11 12 C1491 10 50V ZERO1 ZERO2 ZERO3 ZERO4 ZERO5 ZERO6 NC NC 2.6 VOUT6 2.6 VOUT5 2.6 VOUT4 2.6 VOUT3 D1004 1SS367-T3SONY D1003 1SS367-T3SONY R1472 0 R1475 0 R1460 0 R1461 0 R1470 0 R1471 0 R1494 0 R1493 0 R1492 0 R1491 0 R1495 0 SR-CH SL-CH R-CH L-CH SW-CH C-CH R1403 0 R1404 0 R1405 0 R1406 0 R1484 0 R1445 0 R1435 0 R1400 0 R1408 0 R1425 0 R1464 0 SR SL C1458 50V R1466 10 1k C1418 50V 10 R1426 1k 13 14 R1556 100 FB1503 0uH JR1008 0 R1504 100 R1506 100 R1505 100 R1502 100 R1503 220 1501~1503 1SS367-T3SONY R1530 100k ADCC_INT D1501 D1502 D1503 C1568 2200p C1567 2200p No mark:FM 15 31 30 32 33 34 35 39 41 40 10 36 DIGITAL 37 BOARD (2/5) (Page 19) 44 45 46 47 48 49 50 51 13 DIGITAL BOARD (5/5) (Page 22) 53 55 STR-K790 20 20