Kenwood VR 3080 - Dolby Digital Receiver Service Manual
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Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 7 CIRCUIT DESCRIPTION (X08)IC16 (X08)IC15 (X08)IC26 (X09)IC5 (X08)IC36 (X09)IC4 (X08)IC42 (X08)S91-96 (X08)S97 (X08)IC71 (X08)IC3 (X08)IC91 (X08)IC51 (X09)ED1 (X09)K2-5 (X05) (X08)J81 (X08)IC72 (X08) (X08)A91 (X08)J84 MAIN UCOM µPD784214GF-527 TACT KEY ROTARY- ENCODER FLDRIVER uPD780204 DESTYINA FL TI ON SW LCD REMOTE TRANSMIT IC VOLUME IC TC9412 VOLUME IC TC9412 VOLUME IC TC9412 SELECTOR IC TC9162 SELECTOR IC NJU7312AL SELECTOR IC NJU7313AL TONE CONTROL IC TC9184 CODEC CS4226 DSP YSS912 SP.RELAY MUTETUNER UNIT IR RECEIVER DESTINATION IRREMOTE IR RECEIVER SYSTEM CONTROL uPD17215 4. Main microprocessor: uPD784214GF-527(
Kenwood VR 3080 - Dolby Digital Receiver, AY AZ BB BD BF BHBA BC BE BG 2 1 3 5 7 4 6 Rch 2 Lch 1 PHONO CD1 Rch 4 Lch 3 REC Rch 2 Lch 1 PLAY Rch 4 Lch 3 J1 J2 Lch 3 PLAY IN Rch 4 REC OUT Rch 2 Lch 1 VIDEO1 J3 Rch 4 Lch 1 Rch 2 Lch 3 Rch 6 Lch 5 IC1 (1/2) (2/2) INPUT PHNO EQ AMP SELECTOR REC OUT INPUT SELECTOR Q11 Q21 Q23 1ST Q12 Q22 Q24 D51 D52 D53 Q25 Q27 Q29 D55 D59 D57 Q31 Q33 Q101 Q103 CN21 IDLE FLch D58 Q32 IDLE FRch Q104 Q34 CN22 Q102 D56 D60 D94 Q71 IDLE Cch Q110 Q73 CN25 Q109 D93 D95 Q26 Q28 D54 Q30 D91 Q15 Q65 Q67 Q61 Q63 D92 Q69 D90 Q80 Q79 FINAL TR. CURRENT IC3 (2/2) BUFFER IC3 (1/2) LIMIT MD/TAPE J11 J12 J13 J14 1 2 3 4 5 6 7 8 2 1
Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 44 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. D41 MA143A DIODE D41 1SS302 DIODE D61 MA111 DIODE D101 DA204U D
Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 46 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. C223,224 CE04KW1H100M ELECTRO 10UF 50WV C225,226 CK45FF1H103ZMU CERAMIC 0.010UF Z C227,228 CE04KW1V220M ELECTRO 22UF 35WV C229,230 CC45FSL2H470J CERAMIC 47PF J C231,232 CQ9
Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 42 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. R407,408 RK73FB2A433J C
Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 45 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. Q641,642 2SC4081(R,S) TRANSISTOR Q641,642 2SC4116(Y,GR) TRANSISTOR Q643 2SC4213(B) TRANSISTOR Q651-654 2SC4081(R,S) TRANSISTOR Q651-654 2SC
Input Sensitivity / Impedance Phono (MM) ................................................. 2.5mV / 47kΩ CD .............................................................. 200 mV / 47kΩ Output Level / Impedance Tape Rec .................................................... 200mV / 2.2kΩ Pre Out (Front, Center, Surround, Subwoofer) .... 1V / 1kΩ Tone Control Bass .................
Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 47 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. R349 RD14NB2E101J RD 100 J 1
ACEGIBDFHJ 2 1 3 5 7 4 6 TR3 1T362 : HVU202 or : 2SC2413 D1-3 TR2,3 : 2SK302 : 2SC2714TR1 FET D3 TR2 OSC BUFFER OSC DISTORTION(ST) D1 FET D2 RF AMP TR1 MIX GND FM 75 J1 FM FRONT-END Q1 D1 LEVEL FM TUNING Q3 Q4 EMPHASIS 75uF: ON 50uF: OFF B PLL D4 FM +B Q14 FM MPX AM SYSTEM CN2 MUTE CN1 FM DE MPX Q2 IF AMP D3 D8 D9 Q10 Q11 Q12 DRIVE T.MUTE D5 IC1 : IC2 : LC72131 Q1,3,4,8,9 : 2SC4177(L5
Kenwood VR 3080 - Dolby Digital Receiver, 6 6 3 4 4 9 9 3 3 2 11 12 1 4 3 5 x2 9 x5 8 x2 3 x2 7 13 13 13 14 14 15 10 KRF-V7772D/VR-3080 4 DISASSEMBLY FOR REPAIR 1 4 5 6 x2 3 x4 2 X09- x3 HOOK HOOK 1 4 6 6 6 6 x2 3 2 x2 2 x7 X08- X08- 1 1 4 4 4 6 6 5 B side [Remove the escutcheon (operation panel)] 1. Remove the knob(1), the nut (2), the 11 screws(3, 4, 5) and 2 hooks (6), then remove the front panel ass'y. 2. Remove the lead wire(7), the 2 screws(8 : except K,P type) and 7 screws(9) then remove the PCB. 3. Remove the under front glass(0, -), then remove the front panel(=) from the sub panel. 4. Remove the 2 under escutcheon sides(~) by · screw driver and the 2 hooks(
Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 37 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. - J61-0098-05 WIRE BAND 643 2A K27-2248-04 KNOB (BUTTON) YMX 644 2A K29-6852-04 KNOB 645 2A K29-6855-03 KNOB 646 2A K29-6858-12 KNOB 650 1B ✽ L07-2710-05 POWER TRANSFO
Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 43 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. R682 RD14NB2E100J RD 10 J 1/4W R684 RK73FB2A470J CHIP R 47 J 1/10W R685 RK73FB2A472J CHIP R 4.7K
Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 6 CIRCUIT DESCRIPTION (0 : Pull down, 1 : Pull up) TYPE BAND Reception frequency Channel IF PLL standard Tuner sw space frequency TSW3 TSW2 TSW1 TSW0 K1 FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz 0000 1700 AM 530kHz~1700kHz 10kHz +450kHz 10kHz K2 FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz 0011 1610 AM 530kHz~1610kHz 10kHz +450kHz 10kHz K4 FM 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz 1010 1700 RBDS AM 530kHz~1700kHz 10kHz +450kHz 10kHz E1 FM 87.5MHz~108.0MHz 50kHz +10.7MHz 25kHz 0001 AM 531kHz~1602kHz 9kHz +450kHz 9kHz E3 FM 87.5MHz~108.0MHz 50kHz +10.7
KRF-V7772D/VR-3080 12 ADJUSTMENT PRE OUT FRONT SURROUND CENTER SUBWOOFER AM GND FM 75Ω ANTENNA AUDIO PHONO CD1 MD/TAPE1 REC OUT PLAY IN VIDEO1 REC OUT PLAY IN VIDEO2 PLAY IN VIDEO3 PLAY IN VIDEO4 PLAY IN CD2/TAPE2 MONITOR REC OUT PLAY IN FRONT SPEAKERS (6-16Ω) SURROUND SPEAKERS (6-16Ω) CENTER SPEAKER (6-16Ω) SWITCHED TOTAL 100W MAX. S VIDEO VIDEO MONITOR OUT VIDEO1 REC
Kenwood VR 3080 - Dolby Digital Receiver, CD CFCC CE CG Y05-3850-10 KRF-V7772D/VR-3080 50 49 48 61 60 58 59 15G NP 16G 62 F2 F2 C922 220P R983 470K R982 470K C921 220P 85 1 2 3 4 5 6 7 8 9 10 11 12 13 u-COMVDD u-COMGND -B F1 F2 IRVDD IRGND CLK DI DO ST RST REM GV O GG R945 47K R943 47K R942 47K R940 47K R941 47K R939 47K R936 47K R937 47K R938 47K 47K R944 100P C904 C905 0.01 C906 10u10 + 10 R900 10 R898 33u50 C900 + 33K R917 R918 220 R919 220 R923 100 R921 100 R924 100 R920 100 R981 10 1/4W C908 1 0-10 CANADA PX GENERAL MARKET DESTINATION COUNTRY JAPAN AUSTRALIA 0-01 0-71 0-21M X J UNIT No. 2-91Y ABB. P COUNTRY U.S.A. DESTINATION UNIT No. K A
Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 9 CIRCUIT DESCRIPTION Pin No. Name I/O Connect Description 66 DSP_SO O P.D. DSP(YSS912), CODEC(CS4226)DATA OUT 67 DSP_SCK O P.D. DSP(YSS912), CODEC(CS4226)CLOCK 68 TEXT_RX I P.D. CD TEXT UART COMMUNICATION DATA IN 69 TEXT_TX O P.D. CD TEXT UART COMMUNICATION DATA OUT 70 DSP_IC O P.D. DSP(YSS912) INITIAL CLEAR 71 FL_RST O P.D. FL DRIVER(uPD780204) RESET 72 FL_STB O P.D. FL DRIVER(uPD780204) STROBE 73 FL_DI I P.D. FL DRIVER(uPD780204) DATA IN 74 FL_DO O P.D. FL DRIVER(uPD780204) DATA OUT 75 FL_CLK O P.D. FL DRIVER(uPD780204) CLOCK 76 8/16 I/O - SERIAL XS8/SL16 CHANGEOVER(SL16:L) 77 S_DATA I/O P.D. SERIAL DATA 78 S_BUSY I P.D. SERIAL BUSY
Kenwood VR 3080 - Dolby Digital Receiver, AXAO AQ AS AU AWAP AR AT AV KRF-V7772D/VR-3080 Y05-3850-10 2-91 AUSTRALIA JAPAN J X ABB. ABB.COUNTRY DESTINATION GENERAL MARKET PX M Y DESTINATION U.S.A. COUNTRY K UNIT No. A UNIT No. YES A R702,704, YES 706,772 NO CANADA P 0-10 0-21 0-71 0-01 R701,703,705, 755,773 E63-1028-05 J1 YES E63-1028-05 YES R773 J1 YES NO R701 R702 NO R703 YES YES NO YES NO NO R704 YES NO R705 YES NO R706 R755 R772 YES NO YES NO NO E63-1069-05 B +B 24 VDD VSS 1 NC 23 NC 2 21 22 4 3 17 18 19 20 NC NC 8 7 6 5 13 15 14 16 NC ST DA CS2 NC GND CK 12 10 11 CS1 9 AGND L
Kenwood VR 3080 - Dolby Digital Receiver, AUDIO VIDEO SURROUND RECEIVER KRF-V7772D VR-3080 SERVICE MANUAL © 1999-3/B51-5511-00 (K/K) 1841 POWER ON/STANDBY CLIP INDICATOR DOLBY DIGITAL DTS SPEAKERS A B MUTE VOLUME DOWN UP INPUT SELECTOR DISPLAY MODE PHONES S VIDEO V AV AUX L-AUDIO-R CD2/TAPE2 MONITOR PRE OUT FRONT SURROUND CENTER SUBWOOFER AM GND FM 75Ω ANTENNA AUDIO PHONO CD1 MD/TAPE1 REC OUT PLAY IN VIDEO1 REC OUT PLAY IN VIDEO2 PLAY IN VIDEO3 PLAY IN VIDEO4 PLAY IN CD2/TAPE2 MONITOR REC OUT PLAY IN FRONT SPEAKERS (6-16Ω) SURR
Kenwood VR 3080 - Dolby Digital Receiver, KRF-V7772D/VR-3080 8 CIRCUIT DESCRIPTION Pin No. Name I/O Connect Description 1-8 REM_D0-D7 O P.D. LCD REMOTE DATA OUT-7 9 VDD - - +5V 10-13 TSW3-0 I - TUNER DESTINATION SWITCH3-0 14 ENC_A I - VOLUME ENCODER INPUT A 15 ENC_B I - VOLUME ENCODER INPUT B 16 - I P.D. Not used 17 T_MUTE O P.U. TUNER MUTE 18 PLL_CLK O P.D. PLL(LC72131) CLOCK 19 PLL_DATA O P.D. PLL(LC72131) DATA 20 PLL_DO I P.D. PLL(LC72131) DO 21 PLL_CE O P.D. PLL(LC72131) CE 22 TEST/VPP - - GND 23 PLL_SD I P.U. PLL(LC72131) SD 24 PLL_STEREO I P.U. PLL(LC72131) STEREO 25-28 WIDE_V1-4 I P.U. VIDEO1-4 S1 WIDE DETECTOR 29 WIDE_AUX I P.U. AV AUX S1 WIDE DETECTOR 30 WIDE_OUT O P.D. MONITOR OUT S1
KRF-V7772D/VR-3080 40 PARTS LIST ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Ref. No Add- ress New Parts Description Desti- nation Re- marks Parts No. ✽ New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis.
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