Sony HCD-C990 Service Manual - Page 34

HCD-C770/C990 7-3. BLOCK DIAGRAM - AUDIO OUT, PANEL Section - • SIGNAL PATH : AUDIO D4 SCK BCKO LRCKO D/A CONVERTER IC608 3 SDTI 1 MCLK 2 BICK 4 LRCK AOUTL+ 12 AOUTL- 11 AOUTR+ 10 AOUTR- 9 LOW-PASS FILTER IC610 (Page 33) T DIGDI, DIGCLK RSTAD (Page 33) S D1 - D4, SCK, (Page 33) Q BCKO, LRCKO DIGDI DIGCLK 8 CDTI 7 CCLK 56 MUTING Q207, 208 (Page 33) R NSMUTE L J205 (2/4) VIDEO 1 AUDIO OUT R P-MUTE MUTING CONTROL Q900 AU-MUTE DAS-CS PDN KEY0, KEY2 CSN FLUORESCENT INDICATOR TUBE FL801 D801 - 805 DISC1 - DISC5 40 - 51 5 - 39 G1 - G12 S1 - S35 FL DRIVER IC802 DAT 63 CLK 62 CS 61 RST 60 4 AD1 3 AD2 OSC0 58 OSC1 59 OSC C818, R840 LED DRIVER IC801 DATA 10 CLK 11 STB 12 CLR 13 SYSTEM CONTROLLER IC901 (2/3) 60 FL-DATA 57 FL-CLK 61 FL-CS 56 FL-MUTE HPSW 64 HP-MUTE 46 AU-MUTE 47 DAS-CS 32 62 LED-CS 63 LED-CLR HP-SW HP-MUTE AU-MUTE DAS-CS 14-17, 1-4, 6, 7 P1 - P10 82 - 84 KEY0 - KEY2 (Page 36) X DISC IN I2CDATA, I2CCLK, I2HLP (Page 35) W (Page 35) V ZIVARESET S801 - 805, S811 - 825 DISC INSERT DETECT Q914 KEY INPUT DETECT IC903, 904 SIRCS DETECT Q906, 907 REMOTE CONTROL RECEIVER IC101 VOLUME ROTARY ENCODER S800 S201 SCAN SELECT INTERLACE SELECTABLE I2CDATA I2CCLK I2HLP 93 WAKE 92 SIRCS 85 EN-A 86 EN-B 49 PROG SW 3 I2C-DATA 5 I2C-CLK 100 I2HLP 4 CQ-RST X1 39 X2 38 X901 20MHz DAMP-DATA 1 DAMP-CLK 2 CS1 29 CS2 30 CS3 31 DAMP-RST 26 DAMP-MUTING 27 SCDT SHIFT LATCH1 LATCH2 LATCH3 INIT PGMUTE DIP-RST 43 DIP-OCP 44 34 STREAM PROCESSOR IC305 OUTL1- 21 OUTL2- 18 OUTR1- 7 OUTR2- 4 HADPHONE AMP IC401 D1 SCK BCKO LRCKO SCDT SHIFT LATCH1 INIT PGMUTE 43 DATA 64 XFSIIN 44 BCK 45 LRCK 38 SCDT 37 SCSHIFT 36 SCLATCH 41 INIT 40 PGMUTE 39 NSPMUTE OUTL1+ 24 OUTL2+ 15 OUTR1+ 10 OUTR2+ 1 XFSOIN 28 FSOCKO 73 FSOI 74 XFSOUT 77 BUFFER IC300 X300 49.152MHz D2 SCK BCKO LRCKO SCDT SHIFT LATCH2 INIT PGMUTE STREAM PROCESSOR IC308 XFSOIN 28 43 DATA 64 XFSIIN 44 BCK 45 LRCK 38 SCDT 37 SCSHIFT 36 SCLATCH 41 INIT 40 PGMUTE 39 NSPMUTE OUTR1+ 10 OUTR2+ 1 OUTL1+ 24 OUTL2+ 15 FSOI 74 XFSOUT 77 D3 SCK BCKO LRCKO SCDT SHIFT LATCH3 INIT PGMUTE STREAM PROCESSOR IC310 XFSOIN 28 43 DATA 64 XFSIIN 44 BCK 45 LRCK 38 SCDT 37 SCSHIFT 36 SCLATCH 41 INIT 40 PGMUTE 39 NSPMUTE OUTL1+ 24 OUTL2+ 15 OUTR1+ 10 OUTR2+ 1 FSOI 74 34 P-MUTE HP-MUTE HP-SW MUTING CONTROL Q902 D180 D181 POWER AMP IC301 6 INA 16 INB OUTA 9 OUTB 19 J900 PHONES MUTING Q900, 901 POWER ON MUTING Q192 D192 32V J401 SPEAKER (+) FRONT (-) L ENA ENB DIAGA DIAGB 7 17 8 18 D105 OVER LOAD DETECT Q109, 110 POWER AMP IC304 6 INA 16 INB OUTA 9 OUTB 19 (+) FRONT (-) R ENA ENB DIAGA DIAGB 7 17 8 18 D102 OVER LOAD DETECT Q103, 104 POWER AMP IC307 6 INA 16 INB OUTA 9 OUTB 19 (+) CENTER (-) ENA ENB DIAGA DIAGB 7 17 8 18 D103 OVER LOAD DETECT Q105, 106 POWER AMP IC306 6 INA 16 INB OUTA 9 OUTB 19 (+) WOOFER (-) ENA ENB DIAGA DIAGB 7 17 8 18 D106 OVER LOAD DETECT Q111, 112 POWER AMP IC309 6 INA 16 INB OUTA 9 OUTB 19 (+) REAR (-) L ENA ENB DIAGA DIAGB 7 17 8 18 D104 OVER LOAD DETECT Q107, 108 POWER AMP IC311 6 INA 16 INB OUTA 9 OUTB 19 (+) REAR (-) R ENA ENB DIAGA DIAGB 7 17 8 18 PROTECT DETECT Q113, 114 D101 OVER LOAD DETECT Q101, 102 FAN Y (Page 36)