Kenwood KRF-V9992D Service Manual

Also see for KRF-V9992D: User guide Operating manual Connection and setup guide Service manual

Contents

CW CX CZ DB DD DFCY DA DC DE2135746LINE: 200mVR702100PC701220100PC702R707220K 220KR706R701220C70375R708100P1.5KR705C707R709C706 100PR711 180K75R710 0.1C705P1200mV/47k220PC241514131211109876123451234567891018171615141312112019NC+17VNCNCPRE Rch OUTPRE Lch OUTPRE Lch INPRE Rch INGNDA-LchA-RchGNDB-RchB-LchGNDV1REC-LchVIREC-RchV2REC-RchV2REC-Lch-17V+17V-17VGNDV2REC-LchV2REC-RchV1REC-RchV1REC-LchB-LchB-RchA-RchA-LchT2IN-RchT2IN-LchFRONT LchFRONT Rch1234ST2DATCLKGNDR21K C410u50R11K C310u50564 72381R13 R1122K270K270K 22KR14 R12C21180PC22180PC23220PC70.012 3300PC5C8 C60.012 3300PR8360C10100u10360R7C9100u10++++R4100R3100C15220P220PC16R662K62KR5C2047u2547u25C19++1000PC12C2 100PC1 100PR20 220KR19 220KR1647KR1547KC1710u50+10u50C18+1000PC14C131000PR101KR91K5 24VDD 28262725LRVSS1324CLK172321221920181615DATA1268710911STBGND1314987654321 1234R704 4.71213 811 10 9 47 6 5C227100P4.3KR216R17 104.3KR21523 1GNDGNDGNDGNDFRONT-YV-GND-5VFRONT-VFRONT-CTAPE-2VST+5VCLKFAN-H/LDATAMUTEFAN-ONSELST2CLKDATAVSTD-GNDVOL DATASELST1VOLSTVOL CLKTON ST+5.6VROOM-BFL-F2FL-F1V-MUTEGNDTO AD LchGNDTO AD RchTUNER LchGNDTUNER RchGND-17V+17V+8VAUXD-GND11243658792345867912345678989675341213151412101113121110798645231292810119 86 75 42 13C110.011213 14C201 470PC202 470P3.3K3.3K3.3KR211R2123.3K47u25C209C210+47u25R202 R201+C2060.01C205+4.7u50C213C2144.7u50+470K470KR206 R205C211 47PC212 47PR2131.6K1.6KR21465433465R225 1KR226 1K13149867521GNDINOUTGNDINOUT123456789 10987654321 11 12 13 14 15 16 1817TON-STDRchVOL-STVOL-CLKVOL-DATDATACLKSEL-ST1D-GNDMUTEGNDDLchGNDPREBLchPREBRchGNDRchGNDLchSRchSLchCEchGND+17VBLchBRch-17V4.7KR7031000PC704+10V10V+5V5V+17V17V+8VR2191K1KR2201KR2171KR218 R2101K1KR2091KR207R2081KC2173.3u50+C203+3.3u50100KR203R204100KC2183.3u50+3.3u50C204+914136578W48W47W52W118W122C8150.0470.047C814C8130.01C8120.01+10u50C817+C81610u50R224 1K1/4W1000PW50R18 101/4WK1W115C455 1000P 1KR227R2222.2KC82747u16+100u16C828++17V+17V+17V+17V +17V+17V+17V+17V+17V+17V+17V+17V+17V+17V10V 10V+31V+31V +31V+8V +8V+8VW96W94W92W90R4163.3K-17V+17V-17V +17V+17V5V+5V+5V5V+5V +5V+5V+5V+5V+17V+17V +17VYC-17V+17V(ROOM B)OUTOUT(ROOM A)TUNERTUNERINPHONOOUTINATT1ATT2+10V +10V+10V+10VW53C207 820P100P75(-3dB)(-6dB)0.1C70817V 17V 17V 17V17V17V17V17V17V17V17V17V17V17V 17V 17V17V17V17V17V10V17VAUXAVPHONORchVIDEOR1L2J1D56LchJ2D73D55S1 VIDEOJ3CN21CN22CN28CN32PHONO EQ AMPCN26 CN25IC1(2/2)E5 E2(1/4)IC21IC21(2/4)IC21(3/4)IC21(4/4)CN23 CN24D96TWH2CD2/TAPE2MONITORD39Q3 Q1Q2Q4VINPUT ATTB-MUTE(ROOM BPRE OUT)DIRECT(R)DIRECT(L)5.6V AVR-5.6V AVRD91D90ROOM BPRE OUT(R)PRE OUT(L)ROOM BIC1(1/2)Q6ND57B PRE OUT(R)ROOM B(R)B PRE OUT(L)D89D999Q32O-CN1X11-A/74/62/6-CN2X11-B/72/6X11-B/7-CN10ED2/6X25-B/7-CN112/6X25-B/7-CN27N O-CN44/6X11-A/7-CN34/6X11-A/7-CN71/6X11-C/7K JX08-3/6CN143/6X08-CN11(FRONT)(BOTTOMVIEW)INPUT ATT.SEL.(ROOM B CANCELS PHONO)ROOM ABUFFERP2E4-16.5V16.3V16.3V-16.5V5.6V-5.6V-10.1V10.2V16.3V-16.5VOFF:-16.0VON:0.7VON:0.7VOFF:-16.0VON:0.7VOFF:-16.0VON:0.7VOFF:-16.0VOFF:-16.0VON:0.7V(X25- ) (F/7)IC23IC83IC82(X25-604X-XX) (A/7)PHGDEONBKJCAUTION: 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.The DC voltage is an actual readingmeasured with a high impedance typevoltmeter with no signal input. Themeasurement value may vary depend-ing on the measuring instruments usedor on the product.