Sony STR DE197 Service Manual - Page 22

STR-DE197 4-10. IC BLOCK DIAGRAMS IC401 BD3861FS (MAIN BOARD (1/2)) IC402 TC9299P (MAIN BOARD (1/2)) VIDEO1 L 1 25k 25k 32 REC L VIDEO1 R 2 VIDEO2 L 3 VIDEO2 R 4 MD L 5 MD R 6 CD L 7 CD R 8 25k 25k 25k 25k 25k 25k 25k 25k 25k 25k 25k 25k 25k 25k VCC/2 VCC/2 VCC/2 VCC/2 31 REC R 0dB to -70dB VCC/2 30 VOL R 0dB to -70dB VCC/2 29 VOL L TREBLE L fc=10kHz TREBLE R fc=10kHz 28 TRE L 27 TRE R VCC/2 0dB to -59dB MIDDLE R f0=1kHz 26 MID2 R 25 MID1 R MIDDLE L f0=1kHz 24 MID2 L 23 MID1 L BASS L f0=90Hz 22 BAS2 L 21 BAS1 L 20 OUT L TUNER L 9 25k 25k TUNER R 10 25k 25k VCC/2 0dB to -59dB BASS R f0=90Hz 19 BAS2 R 18 BAS1 R 17 OUT R MIC 11 100k 12k 24k FIL 12 GND 13 VCC/2 DATA 14 CLK 15 LOGIC VCC 16 VSS 1 L OUT 2 L IN 3 NC 4 A-GND 5 CS1 6 GND 7 CLK 8 LEVEL SHIFT CIRCUIT L-CH DATA LATCH CIRCUIT SHIFT REGISTOR (13bit) STROBE GENERATOR CIRCUIT R-CH DATA LATCH CIRCUIT LEVEL SHIFT CIRCUIT 16 VDD 15 R OUT 14 R IN 13 NC 12 A-GND 11 CS2 10 STB 9 DATA IC901 NJM2103D (MAIN BOARD (2/2)) CR 1 VSC 2 +- OUTC 3 GND 4 VREF Q RS 8 RESET -+ 7 VSA 6 VSB/SESIN 5 V+ +- +- IC601 STK350-430 (MAIN BOARD (1/2)) BIAS CIRCUIT PROTECTOR REG DRIVE PRE DRIVE PRE DRIVE DRIVE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 MUTE + VOUT1 - VOUT1 COMP1 NF1 IN1 GND IN2 NF2 COMP2 - VOUT2 + VOUT2 SUB VCC VEE STR-DE197 22 22