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STR-DE725 3-2. BLOCK DIAGRAM – MAIN SECTION – AUDIO SELECT IC301 SELECTOR IC303 J305 3 4 TV/DBS INPUT L 1 AUDIO CODEC IC1103 4 INPUT L 7 OUTPUT L 9 VIDEO2 8 5 11 INPUT L 10 11 27 SDATA2 119 SIC 25 SCLK1 LRCK 36 SRAM IC1402 42 RCLK X1301 49.152MHz 40 SWDT IC1403 26 LRCLK1 13 CLOCK 10 DIVIDE 29 LRCLK2 IC1305 IC1305 UP M A0-7 DOWN 74 XWE Q120 70 XOE LED DRIVE D0-7 SRDT 38 25 J203 TV/DBS DVD/LD SW2 10 82 V-B SW3 4 83 V-E SW4 6 IC1202 IC1202 RY FRONT B 35 21 22 24 36 23 37 6 5 4 INTREQ SCDIN AD0 AD7 HA0 XHDWR XRST HRDY CDTO CDTI CCLK 3 7 108 85 49 50 48 RY REAR 84 79 106101102 103105104 RY REAR 25 32 RY CENTER 18 RY WOOFER 19 RY HP 20 RY FRONT B 16 15 17 DISP DATA 52 U DATA DISP CLK 55 U CLOCK DISP MR 51 U MREQ SREQ 53 U SREQ RESET 90 U REST RY POWER 107 80 V INH 16 XI XO 93 92 RY POWER STOP 64 STOP SOTO 10 SOTO SINO 9 SINO MD2 87 MD2 MD0 89 MD0 X1201 4MHz • RCH is omitted • Signal Path : FM : PHONO : CD : DIGITAL —9— C RY WOOFER RY FRONT A RESET Q1204 RY FRONT A MUTE CONT Q1202 14 SCCLK Q1201 RY CENTER RESET Q1205 SCD IN IC1202 RY HP 75 67 SRDT XLAT SCLK RESET SWDT C PROTECTOR SCDOUT D1201 B A C B LATCH 76 78 77 2 36 SYSTEM CONTROL IC1201 5 LD INPUT A S LAT 3 TV INPUT 111 110109 6 18 ANALOG/DIG 81 V-A 57 58 56 7 AC MUTE ERROR SW1 14 TUNER MUTE DATA 11 V2 OUT OUTPUT STEREO 9 V2 IN INPUT VIDEO 2 AUTO STOP 60 61 62 97 CLOCK J202 S CLK 15 V1 OUT OUTPUT DATA DO VIDEO 1 INTREQ 20 CS Q1203 -15V S DATA 2 TMUTE -5V 3 REG TUNED VEE 8 26 SCDOUT 19 SCCLK IC202 STEREO 13 V1 IN INPUT +5V 9 10 14 RELAY DRIVE D0-7 5 EMRD 21 EXTMEM CS 1 M OUT Q301 HRDY 13 A8-15 VIDEO SELECT IC201 SOD 5 15 HA0 LAT MEMORY IC1302 D0-7 CLK L LATCH IC1303 IC1304 EV STB D0-7 OUTPUT LED VOL 20 . HD0 23 HD7 VIDEO 3 MONITOR B 16 30 CLK J299 VCC 16 10 LAT IC1305 ERROR 30 A0-7 7 V3 IN 8 CLK D0-7 28 SCLK2 IC1102 26 XI B 11 RESET J201 SL 9 DATA 43 SCK DATA A BCK 34 C 41 XLAT VIDEO LAT 44 MCLK EV CLK X1101 24.576MHz 42 SCLK AUDIO AUDATA2 39 DATA CLK EV DATA 9 44 43 42 41 17 MUTE Q303 FUN MUTE C 118 SIB PD B 10 117 SIA AUDATA1 40 14 IN OUT 15 CS 27 XO A 11 1 47 D IN IC1005 2 AUDATA0 41 IC415 IC409 L OUT2 25 RY DIRECT PASS 5 SELECT SWITCH 3 VOL CONT IC406 IC1106 8 CLK 10 LAT Q1207 12 LAT W 9 DATA IC1102 IC1006 15 8 SDTI 3 PD 22 SDATA1 IC1305 DVD/LD SOC 4 CS IC1102 CLK 29 IR LINK DET 99 CLK1 DATA CLK CCLK IC1108 D OUT 35 IC001 7 SDTI 2 CDTO L 6 SDTI 1 SOB 3 DOLBY DIGITAL AUDIO DECODER IC1301 DIGITAL AUDIO I/F RECEIVER IC1101 TAPE SOA 2 115 LRCK CDTI DI CE CLK DI 14 IN OUT 15 J303 OUTPUT IC410 MUTE Q354 XRST L A IC407 IC1105 AUDIO DSP IC1401 113 BCK0 C MUTE Q304 4 BCLK 14 15 13 S DATA INPUT IC416 3 IN OUT 2 5 LRCK R OUT3 24 S LAT L S CLK S DATA OUTPUT 8 CLK 10 LAT IC410 39 MCLK1 CONTROL 14 15 13 MD/DAT L 9 DATA VOL CONT IC407 L OUT3 23 9 SDTO CONTROL J302 CLK LAT VIDEO1 9 DATA Q1206 EQ AMP IC302 3 1 BALANCE RV402 8 IC1105 10 14 IN OUT 15 J304 6 VOL CONT IC414 IC408 L OUT1 27 29 LIN- XHDCS L 6 XHDRD INPUT L VOLUME RV401 IC405 IC1104 MUTE Q302 XHDWR L OUTPUT RY301 IC1104 30 LIN+ XHDRD CD 2 CE L L IC1104 AC MUTE S LAT 7 J301 PHONO 1 INPUT CLK CE 1 DVD/LD S LAT CLK 3 2 R CH S CLK DATA 2 S CLK TMUTE TMUTE STEREO TUNED DO 4 14 15 13 R OUT 12 S DATA DO STEREO AM AM TUNED IC304 PROTETOR L OUT 10 FM SOD FM 75Ω TUNER UNIT XHDCS TM301 ANTENNA — 10 — D
