Sony STR-DB1070 Service Manual - Page 31

5-18. SCHEMATIC DIAGRAM - BIAS Board - STR-DB870/DB1070 R691 1k R690 4.7k D808 1SS133T-72 (Page 28) CN501 7P +OUT +OUT -OUT -OUT +VE SPOUT -VE (Page 28) CN551 7P +OUT +OUT -OUT -OUT +VE SPOUT -VE (Page 28) CN451 7P +OUT +OUT -OUT -OUT +VE SPOUT -VE (Page 28) CN401 7P +OUT +OUT -OUT -OUT +VE SPOUT -VE (Page 28) CN601 7P +OUT +OUT -OUT -OUT +VE SPOUT -VE (Page 28) CN651 7P +OUT +OUT -OUT -OUT +VE SPOUT -VE R540 4.7k R542 10k R541 1k Q540 2SC4495 BIAS R590 4.7k R592 10k R515 4.7k C513 220p R516 6.2k C540 47 16V Q505 2SA988TP-P Q504,505 CURRENT DETECT Q504 2SA988TP-P R518 1.8k R520 15k R522 * D505 1SS133T-72 R519 68k R525 47k R526 47k Q506 2SC1815GR- AF POWER R521 30k PROTECTOR D506 1SS133T-72 C515 0.01 C516 10 50V R524 15k R565 4.7k C563 220p Q554 2SA988TP-P R575 47k R527 22k R591 1k Q590 2SC4495 BIAS C590 47 16V R566 6.2k Q554,555 CURRENT DETECT Q555 2SA988TP-P R568 1.8k R569 15k R572 * Q556 2SC1815GR- AF POWER R3507k11SS1D3535T6-72PROTECTOR C565 0.01 C566 10 50V D555 1SS133T-72 R574 15k R576 47k R577 22k R490 4.7k R492 10k R491 1k Q490 2SC4495 BIAS C490 47 16V R465 4.7k R466 6.2k C463 220p R570 68k Q454 2SA988TP-P R475 47k R476 47k R468 1.8k R469 15k R472 * Q456 2SC1815GR- R471 AF POWER 30k D456 PROTECTOR 1SS133T-72 C465 0.01 C466 10 50V R477 22k R440 4.7k Q454,455 CURRENT DETECT Q455 2SA988TP-P R442 10k R415 4.7k C413 220p D455 1SS133T-72 R470 68k R474 15k R425 47k R640 4.7k R641 1k R441 1k Q440 2SC4495 BIAS C440 47 16V R416 6.2k Q404 2SA988TP-P R418 1.8k R642 10k Q640 2SC4495 BIAS Q404,405 CURRENT DETECT R615 4.7k C640 47 16V R616 6.2k R419 15k Q405 2SA988TP-P C613 220p R422 * D405 1SS133T-72 R420 68k Q604 2SA988TP-P R618 1.8k Q604,605 CURRENT DETECT Q605 2SA988TP-P R619 15k D605 1SS133T-72 R622 * Q406 2SC1815GR- AF POWER R421 30k D406 PROTECTOR 1SS133T-72 R426 47k R427 22k C415 0.01 C416 10 50V R424 15k R625 47k R626 47k Q606 2SC1815GR- R621 30k AF POWER D606 PROTECTOR 1SS133T-72 C615 0.01 R624 15k C616 10 50V R627 22k R692 10k Q690 2SC4495 BIAS (DB1070) R665 4.7k C663 220p C690 47 16V R666 6.2k Q654,655 CURRENT DETECT Q655 2SA988TP-P R620 68k Q654 2SA988TP-P R668 1.8k R675 47k R676 47k R669 15k D655 1SS133T-72 R671 30k R672 * D656 1SS133T-72 C665 0.01 R674 15k C666 10 50V R677 22k Q656 2SC1815GR- AF POWER PROTECTOR R670 68k * R422,472,522,572,622,672 4.7k (US,CND) 3.3k (AEP,UK) 10k (E,CH) * R803 22k(DB870) 33k(DB1070) R801 22k R803 * R863 Q801 22k 2SA988TP-P R804 10k C806 47p OVER LOAD DETECTOR R858 470k IC803(2/2) M5128AP Q804 BA1F4M-TP Q801,804 OVER LOAD DETECTOR D806 1SS133T-72 R857 10k IC803(1/2) M5128AP Q802,803,805 AF POWER PROTECTOR C808 47p CN810 6P -15V D817 1SS133T-72 +15V GND -B PROTECTOUT SENSOUT Q802 2SC2785TP- D807 1SS133T-72 R807 6.8k C805 470 6.3V R819 10k D805 1SS133T-72 Q805 2SC1841TP- Q803 2SA988TP-P R805 10k R806 39k C807 22 50V R802 1k (Page 28) The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Les composants identifiés par une marque 0 sont critiques pour la sécurité. Ne les remplacer que par une pièce portant le numéro spécifié. 31 31