Kenwood VR 3080 Service Manual - Page 18

K L M N O P Q R S T SURROUND UNIT (X08-297X-XX) (A/10) 1 A1 1 OUT 2 VIDEO2 GND 3 VDD VDD R50 10 1/4W IC6 (6/6) 0V 9 4.4V 14 8 7 C55 0.1 R53 4.2V 1.8K R54 1K C56 4700P C66 39P R52 R51 C51 10 10 47u10 1/4W 1/4W + OPTICAL 2 A2 1 OUT GND 2 VIDEO3 +5V 5 6 4.1V IC6 (3/6) R55 4.2V 1.8K R56 1K +5V C57 4700P C67 39P C53 47u10 + DIGITAL IN 3 VDD VDD J1 VIDEO4 1 R57 82 C58 22P C59 R58 4700P 1K R60 150K C60 10P R59 8.2K IC6 (5/6) 13 12 11 10 DIGITAL AMP R61 C61 1.8K 4700P 1K R62 2.3V IC6 2.4V 0.8V (4/6) R66 150K COAXIAL C64 10P 2.3V R65 8.2K IC6 22P C62 82 R63 (2/6) R67 C65 CD1 2 C63 R64 1 23 4 1.8K 4700P 1K R68 3 R69 2.2 4700P 1K IC6 (1/6) 2.4V 0.8V 78 77 14 15 16 VSS D2 D3 D6 D5 D4 0V 19 0V 18 0V 17 IC52 SRAM 4 +5V +3.3V 74 75 76 0V 20 13 73 D7 D1 79 C69 C68 0V 21 12 2.3V 39P 39P 72 D8 A0 86 22 CSI 11 1.9V A1 87 2.4V 23 10 2.5V DIGITAL DATA IC7 DETECTOR IC7 RESET 0V R72 47K Q11 1 2 3 4 1Q 5 2Q +5V VCC 1A 1Rx/Cx 1B 1Cx ICLR 11 2CLR 2Cx 6 10 2B 2Rx/Cx 7 9 2A GND 8 16 5.1V 15 14 0V 13 1Q 12 2Q 5.0V R74 3.3K D61 C71 R71 0.1 100K +5V R75 10 1/4W C72 0.1 +5V DIGITAL 53 R46 47 3.3K DIGITAL(LS,RS) 0V 32 33 R73 220 C35 33P DIGITAL(C,SW) DIGITAL(FL,FR) 34 DIGITAL OUT R35 220 84 R34 220 82 R33 220 83 0V 34 SDIN1 35 SDOUT2 0V 36 5.0V SDOUT1 0V 37 LRCK L1 0V 38 SCLK 2.4V IC3 39 DGND2 DIR DAC A/D 4.8V 40 +5V VD+ VD+ CONVERTER 0V 41 DGND1 BLOCK DIAGRAM 2.4V 42 RX1 : KRF-V7020D 0V 43 RX2 0V 0V 44 RX3 C39 0.1 22 2.4V AOUT2(R) 21 2.4V AOUT1(L) 20 0V AGND1 19 4.9V VA+ 18 0V AGND2 0V 17 FILT 16 CMOUT 15 AINAUX 14 AINIL 13 AINIR FREQ1 12 2.4V 2.4V 0V 4.9V R48 3.9 1/4W 25 29 2.5V 42 2.5V 43 4 3 4 2.5V 5 2.5V 6 2.5V 9 2.5V 7 A5 8 A4 A7 A6 A3 A2 88 WE A12 26 4.9V 30 3 2.5V CS2 A14 27 2.5V 31 2 2.5V A15 A16 28 32 1 4.9V C510 0.1 44 VDD +5V +3.3V VDD VDD NC D502 D501 +5V DIGITAL R43 47K R44 47K C36 1000P R42 47K R40 47K R41 47K C37 1000P R70 3.3K +5V L54 1uH L53 +5V 10uH +5V +3.3V +5V 55 48 58 66 65 67 46 +5V A13 A8 0.8V 29 2.5V 28 2.5V 27 61 2.4V 26 A9 64 2.4V 25 A11 OE A10 4.9V 24 58 59 89 70 0V 1 RX4 2 HOLD 4.8V 3 CCLK R36 220 0V 4 CDOUT 0V 5 CDIN 4.6V 6 CS 7 SPI 4.4V 8 PDN R37 3.3K 9 AUDIO R38 3.3K 10 AC3 R39 3.3K 11 FREQ0 R45 54 3.3K 33 SDIN2 32 SDIN3 31 CLKOUT 30 4.7V ERR 29 0V R32 XTO 28 0V 47K XTI 27 DEM AOUT6(SW) 26 AOUT5(C) 25 AOUT4(RS) 24 AOUT3(LS) 23 R31 C31 3K 0.22 C32 0.022 C34 0.01 C33 1u50 + D2 D1 C20 2200P C19 2200P +5V +5V +5V R47 3.9 1/4W C38 0.1 + C40 10u50 R25 C17 1K 10u50 R26 C18 1K 10u50 ++ R101 3.9K FLch C103 2.2u50 + R103 4.7K C107 3300P +17V 16.9V R107 1K 38 1 2 IC11 (1/2) R109 12K R113 150 C105 1800P R105 100K C101 2700P 21KHz LPF C109 0.022 C111 0.01 R112 R111 22K 22K C102 2700P R102 3.9K C104 2.2u50 + FRch R104 4.7K R106 100K C106 1800P R110 12K 6 R108 1K 5 C108 3300P IC11 (2/2) 7 4 R209 22K C207 120P C110 0.022 C112 100P R114 150 17V 16.9V -16.6V R201 LSch C203 R205 3.3K 47u25 3.9K + R207 1.8K 2 3 8 1 +17V R211 100 IC21 (1/2) C209 0.027 C211 0.01 C205 8200P C201 4700P 21KHz LPF +17V 17V +17V C210 0.027 C212 100P C206 8200P C202 4700P C305 1800P R311 22K R202 3.3K C204 47u25 + RSch R206 3.9K 5 R208 1.8K 6 IC21 (2/2) 7 4 C208 120P R212 100 17V R210 22K R301 2.2K C301 2200P Cch C303 R303 2.2u50 4.7K + R305 100K C307 3300P R307 1.2K 38 1 2 IC31 R309 (1/2) +17V R313 220 0.033 C309 10K 21KHz LPF -16.6V 16.9V 17V 16.9V +17V IC32 3 8 (1/2) R319 100 2 1 R315 100 BUFFER C317 0.01 C311 100P 100P 100P C314 C313 C306 0.012 R312 8.2K C302 6800P R302 4.7K C304 2.2u50 + SWch R304 4.7K R306 100K 6 R308 10K 5 C308 6800P R310 15K IC31 (2/2) 7 4 R314 220 C310 0.033 C318 100P C312 100P R318 17V -16.6V 4.7K C316 22P R316 10K 6 7 R320 5 4 IC32 100 (2/2) 17V C320 100P C319 +17V 0.01 17V +17V 17V +17V +17V 17V +17V 17V -16.6V VDD +5V R526 3.3K 59 60 62 4.5V R505 47K IC R506 47K 64 70 C531 0.01 63 C532 100P 66 4.4V R507 47K CSA 62 C533 100P 68 R508 47K R528 220 65 67 R509 47K 79 78 77 76 75 74 73 72 VDD1 70 +5V +3.3V VDD2 31 32 R513 33 100 +3.3V VDD2 56 R527 3.3K 58 59 61 C521 0.1 +5V R520 10 1/4W 2.1V 2.1V 0V 0V 0V 0V 0V 0V 4.9V 2.3V 58 2.5V 59 2.5V 51 VDD2 52 NONPCM 53 54 55 57 CRC MUTE +3.3V KARAOKE SURENC SDBCKO RAMA6 RAMA5 60 VSS2 RAMA4 61 2.4V 65 4.9V CSB 64 2.4V RAMA3 63 TEST 0V 4.8V 0V 0V 3.3V +5V INVERTER IC55 R530 10K CLOCK ON/OFF IC57 80 VSS1 79 RAMD7 78 RAMD6 77 RAMD5 76 RAMD4 75 RAMD3 74 RAMD2 73 RAMD1 72 RAMD0 71 VDD1 70 RAMA2 69 SCK 68 SI 67 SO 5 1.8V 1 VDD 8 5.0V 0V 1 VDD 5 4.9V 3.1V 2 7 1.9V 2 C527 22P +5V C517 0.01 R522 10 1/4W +5V 3.3V 81 VDD2 0V 82 82 SDWCKO 0V 83 83 SDBCKO 0V 84 84 SDIA0 85 SDIA1 50 VSS1 49 SDWCK1 48 SDBCK1 47 0V R502 100 SDOB0(FL,FR) 46 0V R503 100 SDOB1(C,SW) +5V 0V 3 4 GND 6 3.1V 5 3 GND C522 4 4.9V 47P L51 R518 560 C523 47P CLOCK AMP VDD +5V +3.3V 86 2.3V 86 RAMA1 45 0V R504 100 SDOB2(LS,RS) IC56 1.9V 87 44 2.5V 87 RAMA0 0.8V 88 88 RAMWEN 4.9V 89 89 RAMOEN 90 VSS 3.3V 91 VDD2 VDD2 92 IC51 DSP (DTS,DOLBY DIGITAL PRO LOGIC 3ST.) RAMA7 44 43 2.5V RAMA8 43 42 2.5V RAMA9 42 41 3.3V VDD2 VDD2 +5V 40 VSS2 39 1.9V 1 2 2.4V 3 4 GND VDD 8 4.9V 7 2.1V C524 56P 6 2.2V 5 C525 7.3V R49 2.2 1/4W C43 0.1 IC5 5V AVR OUT IN GND R517 220 IPORT7 OPORT7 6 93 IPORT6 94 BLOCK DIAGRAM : KRF-V7020D 38 OPORT6 37 R529 3.3K 4.4V 47P R516 1M L52 C520 1000P IPORT5 4.9V OPORT5 X51 95 IPORT4 96 IPORT3 97 IPORT2 98 IPORT1 99 IPORT0 100 VSS 36 OPORT4 35 OPORT3 34 OPORT2 33 OPORT1 32 OPORT0 31 VDD1 R610 3.3K 36 R609 3.3K 35 R608 3.3K 34 R607 3.3K 33 R606 3.3K 32 VDD1 +5V +3.3V R510 4.7 1/4W 3.3V IC54 OUT IN GND +5V 4.9V R511 1 +5V 1/4W Q501 CLOCK CONT. C518 39P 12.288MHz R515 1M +5V C519 39P R519 270 C528 22P + C44 0.1 C45 10u50 0V ++ C514 0.1 +5V VSS2 RAMA10 RAMA11 RAMA12 RAMA13 RAMA14 VDD2 AVSS CPO SDOB3 AC3DATA DTSDATA VSS1 RAMA15 3.3V AVR +3.3V +5V C502 0.1 C501 0.1 C513 10u50 C516 10u50 C515 0.1 0V 24 SDOA0 23 SDOA1 0V 22 SDOA2 15 OVFB 14 TEST 13 TEST 12 SDIB3 11 AVDD 7 SDIB2 6 SDIB1 5 SDIB0 2 RAMCEN 1 VDD1 30 2.5V 29 2.5V 28 2.5V 27 2.5V 26 2.5V 25 3.3V 21 20 18 3.3K 17 R525 3.3K 16 10 R524 2.5V 4 0V 4.9V 3.3V 1.7V 0V 470P 10K 19 2.5V 8 XI R501 2.5V 9 XO 3 2.5V 3 RAMA16 +5V +3.3V 29 28 27 26 25 VDD2 C526 R521 50 49 AVDD 1M 4 VDD1 7 +3.3V +5V +3.3V R523 100