Kenwood TM-471A Service Manual

Contents

TM-471A SCHEMATIC DIAGRAM347654321A B C D E-t-t-tR4150C2080.01uR21568kD6DA2212SC4738(GR)Q403C4751000pC2010.1uR206100R402 1kR21282kR403 1kPKDR1621.5k2SK1830Q87R22015kC16 470pR217220k5CC209 68pR860R2340C4761000pC4130.01u2SC2412KQ440R21882k5CC2351uR4340C1651uC403100p5CC20 470p5MC22810u6.3D404MA2S304Q408KRX102UR417220kR22810kC894pR2370C4140.1uD401MA2S111R1611.2kR229680kPKD5MPKS5CC444470pR40810PR1R4071.5kR42847kIC161M62363FPR22722kR23610kC4061000p8CC402100pD406MA2S304C2121200pC4230.047u35C2100.1uR224560PR9C18 470pC21639p2SJ347Q407C4090.1uC2042.2u10C16410u6.3C452470pR231120kR42647kC4181000pC2264700pC873pC428470pD402HZU5ALLR427100k5CL201R871kC884p2SC5108(Y)Q410C451470pR2336.8kD405MA2S304C2204.7u6.3C17 470pC401100pD2021SS372C40822pR21182kR226100kR40410kR2329.1kR4211.5kIC201NJM2100V1234 5678V+IC203BA10324AFV1234VCC567VEE2SC4919Q201L4178CC40415u6.32SA1832(GR)Q402D403MA2S304C44210u6.3R230220k C214150p8CCN21234567R219180kD408MA2S111C449470p2SK508NV(K52)Q405R165 1kR416470R401 1kC4000.1uIC401MB15A02OSCINNC1OSCOUTVPVCCDOGNDLDNC2FIND201DAN222C903pC211820p2SC4649(N,P)Q404C2050.1uC98470pR22115kR21468kC1624.7u6.3R435100R2081.5kL405L404R40610kTC40110pC4110.1uR22210k2SK508NV(K52)Q4068CC97470pR21018kC21810u6.3C19 470pC4250.1u35C41010u6.3C422470pR213330kC2133300pR216270kR225150kR409100kC21710u6.3R4334.7kC4731000p2SK1830Q86C2251u16R42547kC2270.01uL401R164 1kR203100kR205820IC202BA10358FV12345678 VCCR41310kIC204BU4S661 I/O2 O/I3 VSS 4CONT5VDDR4181kR42210kIC205BU4S661 I/O2 O/I3 VSS 4CONT5VDDC2220.1uX401L77-1944-05C2150.1uR209240kR200680R166 1kC2334.7u6.3C1611000pSQCD5DA221TH98100kC2300.1uL40310uC45022u10L416C41210u6.3C421470pTH97100kR41010kR41212kC416470pR41110kR4140C417470pR4191kR4202.2kC4243.3u10L406*L407*C426* L408*C427*L409*C429*C430*R423* L410*C431*C4320.5pR436*L41827nC454*C4552pR429220R430220R431100kC448470p R4321kC433470pL411*L412*C434* L413*C4356pTC402*C4360.5pD4071SV278C437470p L414*C438*C439*C440*C4410.3pL415*R424*TH401*R948.2kR93C163470pC202470pR207750kC2061000pC2070.022uC2030.027uR20418kC231470pC232470pW/NO(EVOL2)SUM AMPPR1TX-RX UNIT (X57-6863-XX)PKSSINGLEANALOG SWSQCQ402,403SPLATTER FILTER8CHPFLIPPLEFILTER8CLBUFFER AMP8CLBEATSHIFTD405,406TCXOMIC AMP/IDCCHARGE PUMPVOTAGEDROPPEDCV1/2VccDT(CPU53)TX VCO8CRX VCOCK(CPU54)MODULATION5CPLL SYNTHESIZERBUFFER AMPTX VCOKDCSINGLEANALOG SWAGC/MIC MUTE16.8MHzD5,6SURGE ABSORPTIONOR GATEMODI(EVOL9)CVQ201RX VCODCAMP1/2VccDIGITALPOTENTIOMETERMOD BUFFARF AMPLIPPLEFILTERMODD403,404BEATSHIFTW/NI(EVOL1)DIMODT/R SWAGCIDCT/R SWPKDD407PR9PLL ICMIC AMP/SPLATTERFILTERRIPPLEFILTER*DT(CPU53)PLLE(CPU3)CK(CPU54)FROO(EVOL23)12345678910 11121314151617181920CLKNC3DATALEFCNC4FOUTPNC5RMODUL(CPU21)PLLE(CPU3)X868.00MHzL78-1409-05891011121314123456789101112 131415161718192021222324MODIDATCLKLDVDDPC/TVIBRIOBRIIW/NIW/NOMODOPC/TVOFRQOFRQIGNDRESETVDFrefDO1VOLO1VOLIBLIBLO2VOLO2VOLIVOLO(EVOL11)XIN(CPU13)XOUT(CPU11)W/NO(EVOL2)M1MT(CPU76)CK(CPU54)DT(CPU53)MICMT(CPU77)UL(CPU21)EVLLD(CPU8)MICTX DTMFQT/DQT(CPU1)TX/RX (CPU20)W/NI(EVOL1)1/2VccBRIPLLE(CPU3)P9MT(CPU75)BSHIFTVOLI(EVOL12)MODMICMT(CPU77)UL(CPU21)PLLE(CPU3)PC/TVTX/RX (CPU20)MODO(EVOL10)PC/TVO(EVOL3)P9MT(CPU75)EVLLD(CPU8)R:6.68VR:0.72VR:2.48VR:3.37VR:0.75VR:4.9VT:0.98VR:0.98VR:5.84VR:7.95VR:5.6VR:4.96VR:6.78VR:7.9VR:4.88VT:4mVR:4.05VR:6.86VR:0.76VR:0.1mVR:1.9mV(BS OFF)4.97V(BS ON)T:6.7VR:6.8VT:0VR:2.8mVR:4.98V4.97VR:5.48VR:7.57VR:4.97VR:1.6VX57-686 1/3