Sony STR-DE475 Service Manual - Page 21

3-15. IC BLOCK DIAGRAMS IC1015 NJM2279D (VIDEO BOARD) STR-DE475 IC1008 AK4527 (DIGITAL BOARD) VSW2 VIN1 MUTE1 VOUT1 NC V+ LOOP1 LOOP0/SDA/CDTI DIF1/SCL/CCLK DIF0/CSN P/SN MCLK DZF1 AVSS AVDD VREFH VCOM VIN3 SW1 VIN2 MUTE2 VOUT2 GND2 GND1 14 13 12 123 11 10 9 8 AMP AMP 4 567 44 43 42 41 40 39 38 37 36 35 34 SDOS 1 I2C 2 SMUTE 3 BICK 4 LRCK 5 SDTI1 6 SDTI2 7 SDTI3 8 INPUT CIRCUIT AUDIO INTERFACE OUTPUT CIRCUIT SDTO 9 DAUX 10 DFS 11 FORMAT CONVERTER 12 13 14 15 16 17 18 19 20 21 22 33 DZF2 32 RIN+ 31 RIN- 30 LIN+ 29 LIN- 28 ROUT1 27 LOUT1 26 ROUT2 25 LOUT2 24 ROUT3 23 LOUT3 DEM1 DEM0 TVDD DVDD DVSS PDN ICKS2 ICKS1 ICKS0 CAD1 CAD0 XO XI VDD2 VSS2 T1 T2 IC301 BU1924F-E2 (MAIN BOARD) RCLK NC 16 15 14 13 12 11 10 9 DIGITAL PLL 1187.5Hz PLL 57kHz RDS/ARI COMPARATOR CLOCK ANALOG BIPHASE DECODER DEFFERENTIAL DECODER 8th SWITCHED CAPACITOR FILTER ANTI-ALIASING FILTER 1 2 3 4 56 7 8 TEST QUAL RDAT VREF MUX VDD1 VSS1 VSS3 CMP SUB MUTE +VOUT1 -VOUT1 COMP1 NF1 IN1 GND IN2 NF2 COMP2 -VOUT2 +VOUT2 VCC1 VCC2 VEE IC501 STK350-230 (MAIN BOARD) INPUT 1 NF 2 3 4 -VEOUT 5 +VEOUT 6 VSS 7 GND 8 VCC 9 TR3 R1 TR1 TR2 TR4 R2 R4 TR5 D1 D2 R5 R9 TR8 TR7 R6 TR6 R3 D4 D3 R8 R7 IC701 uPC2581V (MAIN BOARD) IC702 uPC2581V (MAIN BOARD) PROTECTOR BIAS CIRCUIT REG DRIVE PRE DRIVE PRE DRIVE DRIVE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 21