Sony STR DA2400ES Service Manual - Page 51

STR-DA2400ES/DG920 6-24. SCHEMATIC DIAGRAM - ACLASS Board - • See Page 76 for IC Block Diagrams. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 A B AD C MAIN BOARD (3/3) CN401 (Page 49) D E AE F MAIN BOARD (3/3) CN671 (Page 49) G H AF MAIN I BOARD (3/3) CN601 (Page 49) J ACLASS BOARD -B_ACLASS -B_ACLASS +B_ACLASS +B_ACLASS GND_ACLASS GND_ACLASS GND_ACLASS TEMP 4/8 NF_C -V_C +V_C AUDIO_GND C_IN CN711 13P JL1660 13 12 JL1661 11 10 JL1659 9 8 7 JL1657 6 JL1656 5 JL1655 4 JL1654 3 JL1694 2 JL1653 1 IC700 POWER AMP IC B/D ∗C703 10 50V (DA2400ES: AEP, ECE, UK) 10 100V (DA2400ES: US/DG920) 3 -1.1 -43.5 0.1 0.1 -44.9 45.1 45.1 -44.9 IC700 UPC2581V-S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 R1938 10k R700 10k ∗C703 C714 33p 500V C713 100p C715 3p 500V C712 100p R715 68k R716 2.2k C716 220 10V C711 10 50V R711 1k R712 68k C732 22 100V NF_L -V_L +V_L +V_SL -V_SL NF_SL AUDIO_GND R_IN CN511 13P JL1672 13 JL1671 12 JL1670 11 JL1669 10 JL1668 9 JL1667 8 JL1695 7 JL1665 6 AUDIO_GND 5 AUDIO_GND 4 L_IN 3 AUDIO_GND 2 4/8 1 JL1666 JL1696 JL1664 ∗C503 10 50V (DA2400ES: AEP, ECE, UK) 10 100V (DA2400ES: US/DG920) IC500 POWER AMP IC B/D IC500 UPC2581V-S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 3 -1.1 -43.5 0.1 0.1 0 0 -44.9 -1.1 45.1 45.1 -44.9 R1939 10k R500 10k C503 ∗ C514 33p 500V C513 100p C563 100p C564 33p 500V C561 10 50V C511 10 50V R561 1k R511 1k C512 100p C562 100p R512 68k R515 68k R562 68k R516 2.2k C516 220 10V R565 68k C515 3p 500V C545 3p 500V R566 2.2k C566 220 10V -V_R +V_R NF_R GND -7V +7V NF_SR -V_SR +V_SR AUDIO_GND SR_IN AUDIO_GND SL_IN CN611 13P JL1681 13 JL1680 12 JL1679 11 JL1675 10 JL1674 9 JL1673 8 JL1678 7 JL1677 6 JL1676 5 4 JL1683 3 JL1697 2 JL1682 1 IC600 POWER AMP IC B/D IC600 UPC2581V-S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 3 -1.1 -43.5 0.1 0.1 0 0 -44.9 -1.1 45.1 45.1 -44.9 R1940 10k R600 10k C603 ∗ C614 33p 500V C613 100p C656 100p C655 33p 500V C611 10 50V R611 1k C661 10 50V R661 1k C612 100p C662 100p R612 68k R615 68k R662 68k R616 2.2k C616 220 10V C665 3p 500V C615 3p 500V R665 68k R666 2.2k C666 220 10V MUTE +VOUT1 -VOUT1 COMP1 NF1 IN1 GND IN2 NF2 COMP2 -VOUT2 +VOUT2 VCC VCC VEE MUTE +VOUT1 -VOUT1 COMP1 NF1 IN1 GND IN2 NF2 COMP2 -VOUT2 +VOUT2 VCC VCC VEE MUTE +VOUT1 -VOUT1 COMP1 NF1 IN1 GND IN2 NF2 COMP2 -VOUT2 +VOUT2 VCC VCC VEE R1908 33 2W (DA2400ES: US/DG920) 68 2W (DA2400ES: AEP, ECE, UK) R1907 100k C733 22 100V -44.4 Q1903 2SD774-T-34 LIMITER SWITCH R1943 10k -44.9 -44.9 -44.9 -44.9 R1549 100k -44.1 Q1902 2SD774-T-34 LIMITER SWITCH R1942 10k R1906 10k R1934 3.3k 1W R1905 330 2W R1904 10k Q1901, 1914 LIMITER CONTROL R1901 22k 6.9 -43.5 Q1901 2SA1163L-TE85L Q1914 DTC124EKA-T146 0 R1902 6.9 22k 7 R1930 10k R1933 47k D1907 MA2J1110GLS0 D1911 MA2J1110GLS0 (DA2400ES: AEP, ECE, UK) R1915 22k R1914 22k Q1907 2SA1163L-TE85L 6.3 6.9 R1937 7 2.2k R1916 12k 2.1 -5.6 7 Q1907, 1908 LIMITER CONTROL IC1901 OVER LOAD DETECT IC1901 NJM4565M(TE2) Q1908 0 DTC124EKA-T146 5.9 D1905 MA2J1110GLS0 6.3 VCC -5.6 8765 1234 R1917 470k -4.3 C1908 47p -7 VEE C1907 0.1 C1916 0.1 C1915 0.1 R1918 47k R1919 10k IC400 POWER AMP IC B/D MUTE +VOUT1 -VOUT1 COMP1 NF1 IN1 GND IN2 NF2 COMP2 -VOUT2 +VOUT2 VCC VCC VEE IC400 UPC2581V-S 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 3 -1.1 -43.5 0.1 0.1 0 0 -44.9 -1.1 45.1 45.1 -44.9 R1941 10k R400 10k C403 ∗ C414 33p 500V C413 100p C463 100p C464 33p 500V R461 1k C461 10 50V ∗C403, 603 10 50V (DA2400ES: AEP, ECE, UK) 10 100V (DA2400ES: US/DG920) C415 3p 500V R415 68k R416 2.2k C416 220 10V R412 68k C412 100p R462 68k C465 3p 500V R465 68k R466 2.2k C466 220 10V C462 100p R411 1k C411 10 50V K (DA2400ES: AEP, ECE, UK) ∗R1921 20k (DA2400ES: AEP, ECE, UK) 22k (DA2400ES: US/DG920) R1925 24k ∗ R1921 R1910 330k IC1902 LIMITER 8765 1234 1.7 VSS 0.8 1.3 4.3 0.7 5 4.3 VDD IC1902 NJM4565M(TE2) D1903 MA2J1110GLS0 D1901 MA2J1110GLS0 R1909 33k 5 O R1924 10k R1927 10k R1931 1k R1920 1k IC1904 +5V REGULATOR C1911 220 10V 2 3 G IC1904 PQ050ES1MXPQ I D1912 1SS367-T3SONY 3.8 R1932 10k 0 3.3 Q1913 DTC124EKA-T146 0 Q1912 DTC124EKA-T146 Q1912, 1913 LIMITER DETECT R1922 3.3k 0 0 Q1910 DTC143TKA-T146 1 6.8 D1902 MA2J1110GLS0 C1912 0.1 C1914 100 16V 3.8 0 Q1911 DTC124EKA-T146 Q1910, 1911 LIMITER DETECT CN1909 5P JL1649 1 +7V JL1650 JL1651 JL1652 2 NC 3 GND 4 TEMP1 5 TEMP2 AH LIMITER BOARD CN1902 (Page 61) CN411 13P JL1693 1 JL1698 2 JL1692 3 JL1684 4 JL1686 5 JL1687 6 JL1688 7 JL1689 8 JL1690 9 JL1691 10 JL1685 11 JL1663 12 JL1662 13 SBL_IN AUDIO_GND SBR_IN AUDIO_GND +V_SBR -V_SBR NF_SBR -V_SBL +V_SBL NF_SBL LIM_CONTROL 4/8_RY PROTECTOR AG MAIN BOARD (3/3) CN501 (Page 49) STR-DA2400ES/DG920 51 51