Kenwood KRF-V7771D Service Manual

Also see for KRF-V7771D: Instruction manual Instruction manual Setup Instruction manual Service manual

Contents

G IF H KJ ML ONA C EB D2135746CIC602IC601KRF-V7771D(E,T) (1/6)TUNER UNIT(X11-3822-70) (C/7)IC44ABA601 (W02-2584-05)(E,T,X) TYPEKRF-V7771DE(E2) (1/6)270R644R601 1000.01C60310R607820R604 680CF601 CF6021/4W4PC675R641 100KL60110KR6420.01C6361uHL602S-METERDRIVETUNINGFM AM/FMS-CURVE12FM IFS-METERFMDETIF-BUFF34GND5AMOSCBUFFALC3029SDCOMPAMAM IFRF.AMPAMMIXREG28AMAGC2726VCC867DRIVESTEREO9121011131514MUTEDET2524232238K304KHzVCO FF 219KFFDECODERANTI-BIRDIEP-DET21SWSTEREO2019PILOTDETFF19K 818171647P0.047C62033u10C619+0.047C6223.3u35C621+R6250.022C626C62410u16C623+10u25C627C625VR60110K2.2u35C629+2.2u35C628+0.02210u10C638+10u10C637+0.047C612 22R61610u16C614 +3.9KC645+C6151u50R6203KR6180.47u50C616+R619C6171u50+8.2K1C681L6030.047C61147u16C610 +R683 1K47PC676C64147P10uHL609C640 2P21C B I/FDIVIDERREFERENCE3214522214SWALLOW COUNTER1/16,1/17 4bitsONDETECTOR RESETDATA SHIFT REGISTER LATCH67810911POWERCHARGE PUMPPHASE DETECTORUNLOCK2019181716UNIVERSAL COUNTER12bits PROGRAMABLEDIVIDER1/21513127.2MHzX60127PC64222PC6431.2KR659R65812KR649 10KR648 1KR647 3.3KR646 3.3KR645 3.3K470PC64447u16C648 +10u16C646 +1000P4.7u50 +C6781K1KR654R6515.6K100R652R650 470C6471/4W1KR656100PC652 1KR657470PC651100PC65010KR655R6432202143E601C6010.022 C618151413121110987654321SDSTEREORchGNDLch+16V-16VT. MUTEPLLDATAPLLCLKPLLCEPLLDOC672 1u50+47u16C673+R605 3.3K2200.01C605 R611C6060.01330R609 680R610C607 47u16+150R6811W8208.2KR6754.7K1.8KR676R678R67747KR674635435461K1KR672R67322R608100R623R634R628R627 R633R6062 1T.METERVREF3.3KR6381K10u16C632 +R680 100KR6401KR635100100R63610KR639+16V16V+16V8200PC6718200PC670L606L607C682 0.0133KR615R6822.7KL604 (GRN) L605 (WHT)R6033.3KR6022200.022DETS-LEVEL987654321B-Rch INGNDB-Lch INGNDB-Rch OUTGNDB-Lch OUTGNDB-MUTE87654321910111213141516LADDER RESISTORANALOG SWANALOG SWCODE DETECTVSSGNDVDD20bit SHIFT REGISTER CIRCUITLEVEL SHIFTCKSTBDATACOMCOM470KR3455600PC305 3.9KR305C3010.068C3030.015R301680KANALOG SWANALOG SWCIRCUITR3111K820PC30922KR309820R3070.018C307 R313390K16KR3033.9KR315+10u50C341LADDER RESISTORLADDER RESISTORLADDER RESISTOR13bit LATCH CIRCUIT13bit LATCH CIRCUIT1KR312 10u50+C342820PC310R31022KR30416K820R3083.9KR3063.9KR316C3080.018C3065600PR314390KR302680K0.015C304 0.068C302768 5 R3258.2K+1u50C3212.2KR323560PC319120KR3211u50C317+43KR319C31527PR317180KC3221u50+R3268.2K1423R318180K27PC316+1u50C318560PR322120KC320R3242.2KR32043KC3140.01+17V+17V+17V17V17V17V+17V13231470PC6861MR687C6840.022R6861MC602 0.01R688 56KR685 1M0.022C685100PC340470KR343470KR344W688150PC6886.8K6.8KC631180P220P 18K15KR614R6941010R693C649R653R637 3.9K3.9K 3.9KR691 3.3KR692 3.3K+BIF-OUTVTVCCOSC5P0-100C4C2C14 GND3 GND27PC3ANT12 GND1L127P 15P100K100K3-7PC5C140.1R3R1L20-5P C610PC7 5-10PL4L3150K-R19100220R16R14L7C172-6P47PC16 R123.9KC198PC21470-R1710KR151.5K10P560KC2227PC2010KR181-3P100PC23R8680K-1.5MC101000PC8 0-6PR5100 R7 33KR6 33K680L5R9L6C150.1 R110-100C12 2PC1127P0.1C13R233KR4 C9 IFT8675100R612+17V +17V17VDGND5VOLUME. TONE-DATAVOLUME. TONE-CLK12TONE-STBVOLUME-STB34B-MUTE6TONE OUT Lch-17V+17V789101112131415TONE IN LchGNDTONE IN RchGNDTONE OUT RchGND2+17V17V+17V17VB+BE23E24R69068022PC6300.022C690 1000P22PC691 22PC692R6211K1KR622L610 2.2uHL611 2.2uHR617+B+15V+B+B+B+B +B+B+B+B+B+B+B+15V+15V+15V+15V+B3.6V(3.6V)8.0V(8.0V)(3.6V)3.6V(3.6V)3.6V(0V)0V(4.9)0V(8.0V)8.0V(1.2V)1.2V(2.8V)0V(0.5V)0.5V(6.9V)6.9V(8.0V)8.0V(0V)4.3V(3.6V)6.9V(2.0V)2.1V(3.6V)3.6V(1.2V)0V(1.4V)0V(0.4V)3.5V(3.3V)3.3V4.3V(4.3V)(4.3V)4.3V4.3V(4.3V)(3.3V)3.3V(2.9V)2.9V3.6V(3.6V)(3.6V)3.6V(3.6V)3.6V(2.5V)(3.0V)(1.0V)(5.2V)(0V)(0V)(3.0V)(2.6V)0V (0V)0V (0V)0V (0V)(4.3V)(0.1V)(6.9V)1.7V10.7V0V(0V)(0V)(1.0V)16.3V16.3V-16.5V4.3V2.6V6.9V6.7V0V (11.6V)10.1V (10.3V)0V0V(2.5V)0V5.2V2.5V1.0V0V1.0V4.1V2.5V6.3V1.1V6.9V1.6V4.3V8.0V3.7V2.9V3.5V 15.0V[0V][0V] [0V][0.7][0.7][3.5V][3.5V][2.7V]0V-2.4V0V 0V -2.4V-2.4V3.7V[0V]0V5.0V11.5VFM:11.3V15.9V15.0VAM:0V-16.5V:-16.5VPOWER ONSTANDBY :0V:16.3VSTAND BY :0VPOWER ON-E1X08-C/73/6-E2X11-A/74/6-CN29X25-A/75/6J601Q601D601TUNEDFMPLLD604FM +BQ614FM, MPXAM SYSTEMMUTECN11Q602FM AMPD603D609Q610Q611Q612DRIVET. MUTED605IC43 :IC44 : TC9184APNJM4565DQ601,606,607 : 2SC4081(R,S) orQ602,612,614 : 2SA1576A(R,S) orQ610,611 : 2SD1757KD601 : DA204KD603 : RD8.2ES(B2) orD611,613 : MA111D612 : 1SS133 orRD5.1ES(B2) orD604 :RD3.3ES(B2) orD609 :RD2.7ES(B2) orD605 :D613AM RFCN12Q606Q607D612FM DET MPXMPX FILTERD6112SC4116(Y,GR) or2SA1586(Y,GR)HZS8.2N(B2)HZS5.1N(B2)HZS2.7N(B2)HZS3.3N(B2)CN5CN7TONED6IC43BUFFERIC43LchRchFM 75GNDAM(1/2)(2/2)HSS104ADJD615WH601U1BC44D615 :: 2SK302: 2SC2413: SVC220 or: 2SC2714KV1440D1-4FET1TR1TR2,3D1FET1D4 BUFFEROSCTR2TR3OSCD3D2RF AMPFM FRONT ENDDISTORTION(ST)TR1MIXGND LINESIGNAL LINEB LINEB LINE2SA1611(M5,M6)2SC4177(L5,L6)IC602IC601LC72131:: LA1837D6 : DA204U or1SS302Y05-3862-70KRF-V7771D/V7771DEThe DC voltage is an actual readingmeasured with a high impedancetype voltmeter as the AM/FM signalgenerator is specified to the condi-tions as shown in the list below. Themeasurement value may varydepending on the measuring instru-ments used or on the product. Thevalue shown in ( ) is actual readingmeasured in the AM mode.MODE CARRIER MODULATION ANT INPUTFREQUENCY DEVIATIONFM 98MHz 1kHz STEREO 67.5kHz 7.5kHz(Pilot) 60dBAM 1000(999)kHz 400Hz MONO 30% MOD 60dBCAUTION: For continued safety,replace safety critical components onlywith manufacturer's recommendedparts (refer to parts list). indicatessafety critical components. For contin-ued protection against risk of fire,replace only with same type and ratingfuse(s). To reduce the risk of electricshock, leakage-current or resistancemeasurements shall be carried out(exposed parts are acceptably insulat-ed from the supply circuit) before theappliance is returned to the customer.