Pioneer VSX-D509S Service Manual - Page 52

VSX-D509S M62446FP (D.D & INPUT ASSY : IC103) • Sound Controller IC (Volume and Tone Control) • Block Diagram OUT4 1 OUT3 2 OUT2 3 OUT1 4 AVDD 5 SWin 6 GNDS 7 SRin 8 SLin 9 GNDC 10 Cin 11 GNDR 12 Rin 13 GNDL 14 Lin 15 BYPASSR 16 BYPASSR 17 LTRE 18 LBASS3 19 LBASS2 20 LBASS1 21 70kΩ 1.5kΩ 12kΩ 300kΩ 70kΩ 70kΩ 70kΩ 70kΩ Volume 17-24kΩ Volume 17-24kΩ Volume 17-24kΩ Volume 17-24kΩ S T Volume 17-24kΩ S T Volume 17-24kΩ 12kΩ 12kΩ 300kΩ 70kΩ 1.5kΩ MCU I/F 12kΩ 42 DVDD 41 CLK 40 DATA 39 LATCH 38 DGND 37 AGND 36 SWout 35 SRout 34 SLout 33 Cout 32 Rout 31 Lout 30 AVSS 29 CL1 28 CL2 27 CR1 26 CR2 25 RTRE 24 RBASS3 23 RBASS2 22 RBASS1 • Pin Function No. Pin Name Function 1 OUT4 2 3 OUT3 OUT2 Output port (open drain of PchTr) 4 OUT1 5 AVDD Analog positive power supply port 7 GNDS 10 12 GNDC GNDR GND (connect to analog ground) 14 GNDL 6 SWin 8 9 SRin SLin Volume input 11 Cin 36 SWout 35 34 SRout SLout Volume output 33 Cout 13 15 Rin Lin TONE input 16 17 BYPASSR BYPASSL L and R Volume input at bypass 31 Lout L output 32 Rout R output 52 No. Pin Name Function 18 25 LTRE RTRE TONE TREBLE frequency control port 19 LBASS3 24 RBASS3 20 23 LBASS2 RBASS2 TONE BASS frequency control port 21 LBASS1 22 RBASS1 26 28 CR2 CL2 TONE output port 27 29 CR1 CL1 L and R volume input 31 Lout L output 32 Rout R output 30 AVSS Analog negative power supply port 37 AGND Analog ground port 38 DGND Digital ground port 39 LATCH Latch input port 40 DATA Data input port 41 CLK Clock input port for data transmission 42 DVDD Digital power supply port