Sony STR-DB1070 Service Manual - Page 27

5-14. SCHEMATIC DIAGRAM - MAIN Board (1/3) - • See page 38 for IC Block Diagrams. STR-DB870/DB1070 (Page 18) CN807 21P TUNER-L GND TUNER-R GND FRONT-L GND FRONT-R GND SL GND SR GND C GND DB9-SB/DB8-W GND DB9-W/DB8-NC GND SOURCE-R GND SOURCE-L (DB870) MULTI CH IN MULTI CH IN 2 (DB1070) FRONT (CHASSIS) J305 6P L R L SURROUND R CENTER SUB WOOFER C107 2200p R101 1k R102 1k R103 1k R104 1k R105 1k R106 1k (DB1070) FRONT (CHASSIS) J304 6P L R MULTI CH IN 1 L SURROUND R CENTER SURROUND BACK SUB WOOFER J307 1P C177 2200p R151 1k R152 1k R153 1k R154 1k R155 1k R156 1k R157 1k G2 G1 D7 D6 D5 D4 D3 D2 D1 B2 B1 E1 E2 E3 E4 E5 E6 E7 E8 E9 E10 E11 E12 E13 E12 E6 E10 E4 B2 E8 E2 B5 SBOUT COUT 6.1SR 6.1SL 5.1SR 5.1SL D/ASR D/ASL E11 E5 E9 E3 E13 E6 B1 E7 E1 B4 B3 D2 D4 D3 D5 D1 D7 D6 R651 6.8k R551 6.8k R601 6.8k R501 6.8k Q651 2SC3623A MUTING Q551 2SC3623A MUTING Q601 2SC3623A MUTING Q501 2SC3623A MUTING F2 D/ASB D/AC 6.1C 5.1C 2NDR 2NDL VDD AUDIO SELECT IC101 TC9274-014 6.1SB 6.0 VEE F1 C138 0.01 JW801 (DB870) (DB1070) RY805 -1 -2 JW802 (DB870) D813 1SS133T-72 Q815 2SC2785TP- RELAY DRIVE R830 10 (DB1070) R832 4.7k R831 10k (DB1070) R701 6.8k R451 6.8k R401 6.8k Q701 2SC3623A MUTING Q451 2SC3623A MUTING Q401 2SC3623A MUTING LOUT LAT DATA D/AL 5.1L 6.1L 2CHR 2CHL SWOUT D/ASW 5.1SW 6.1SW SROUT SLOUT ROUT VSS CLK D/AR 5.1R 6.1R NC NC NC NC (DB1070) C718 47 16V VDD VCC R702 C701 1k 22 50V IC702 M5218AP-22 BUFFER VSS ELECTRICAL VOLUME IC701 TC94A07P C702 220p R703 100k VSS C131 2200p C133 100p C132 2200p R135 1k TRIM TRIM TRIM TRIM TRIM TRIM OUT OUT VRGNDVRGND IN IN CS1 CS2 GND LAT R833 1M R826 1M BUFFER IC502 M5218AP-22 VCC VSS C502 220p R503 100k C518 47 16V R502 1k C501 22 50V VDD ELECTRICAL VOLUME IC501 TC94A07P TRIM TRIM TRIM OUT IN CS2 LAT DATA C519 100p R504 1k J1 N3 N1 VRGND VRGND CLK GND CS1 IN OUT TRIM TRIM TRIM VSS C552 220p R553 100k CLK DATA C704 100p N3 R704 1k N1 N2 R552 1k C551 22 50V C821 0.01 C812 0.1 C567 47 16V C467 47 16V C818 22 25V C819 22 25V BUFFER IC402 M5218AP-22 VCC VSS BUFFER IC602 M5218AP-22 VCC VSS C602 220p R603 100k C402 220p R403 100k C452 220p R453 100k R452 1k C451 22 50V ELECTRICAL VOLUME IC401 TC94A07P TRIM TRIM VDD TRIM TRIM VSS R402 1k C401 22 50V C813 0.1 C419 47 16V C618 47 16V R602 1k C601 22 50V TRIM TRIM VDD ELECTRICAL VOLUME IC601 TC94A07P TRIM TRIM VSS C652 220p R653 100k R652 1k C651 22 50V C667 47 16V TRIM TRIM TRIM TRIM OUT OUT OUT OUT VRGND VRGND VRGND VRGND IN IN IN IN N2 J2 C420 100p N3 R404 1k J4 N1 J6 J5 J4 J3 J2 J1 DATA LAT CS2 CLK GND CS1 JW701 (DB870) N2 J3 LAT CS2 GND CS1 CLK DATA C619 100p N3 R604 1k J5 N1 N2 J6 C703 22 50V RY807 -1 -2 D816 1SS133T-72 R854 10 Q825 2SC2785TP- I2 RELAY DRIVE R852 4.7k R853 10k Q826 2SC2785TP- I3 RELAY DRIVE R859 2.2k R860 10k Q808 2SC2785TP- I1 RELAY DRIVE R813 4.7k R817 10k D810 1SS133T-72 D801 1SS133T-72 1A (Page 28) 2A CN805 11P SB C R L SR SL PRE,RYSW GND RY+ FSP,RY- (Page 35) 1B 2B 3B 4B 5B 6B 7B 8B 9B 10B 11B 12B 13B 14B 15B 16B 17B 18B (Page 29) 27 27 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.