Kenwood KRC-31Y Service Manual

Also see for KRC-36: Instruction manual Service manual Service manual

Contents

A B C D E123456710K10K3.8V3.8V3.8V3.8V055V0V5V1V3.8V3.8V3.8V3.8V3.8V3.8V3.8V3.8V0V3.8V7.7V5.0V5.0V0V0V7.6V7.6V0V5V0V5V0VIC9IC10IC8CASSETTE MECHANISM(D40-1150-05)SYNTHESIZER UNIT (X14-689X-XX)(E30-4792-05)DC1J4CN1D401D402D404D403D409D411D410EQUALIZERAMPLIFIERSUB MOTORDRIVERQ552Q551CN2MOTORD551AMHEADRchLchMAINT-ENDSTBYSUBPACKFWD/REVMHD1MM1M2PLAYIC1 :IC2 : TDA7407DIC4 :IC6 : TDA7479DIC9 : HA12221FIC7 : TDA3682STIC8 : HD74HC27FPQ1,301 : DTC124EUA orQ10,11,20,101,2012SD1819AQ40 : DTA124EUA orQ50 : 2SA1036KQ223,224 : DTC143TUA orQ251 : DTC114YUA orQ501 : 2SD1760Q551 : 2SB1443Q552 : DTC114EUA orD1 :S2V20 AD2,3 : 1GWJ43 (TPB5)D4,551 : AM01Z orD10,11,401,402: MA4068 (N) -MD20 : MA4051 (N) -MD40,101,251-253: B30-1567-05403,404,407,409-411: 1SS133MUTE DRIVERPREOUTDRIVEMUTEIC12IC10IC11LB1930MS-80835CNNB: BR24C01AF::Q151 DTA114YUA or:MA4047-M or:D30D102MA4062-L or:D153,154,157,159-161,B-PARTA-PARTTDA73862SC4081 or:UN5112UN5114UN5216UN5214UN52111N5393G-M6 orERA15-01HZS5B1HZS6C1D407B LINEGND LINESIGNAL LINE(X14-689X-XX)CBUN5212CH-IN∗DATA CGNDREQ HCONMUTES GNDRchRST2438 127611101 5 9DATA HLchCLKREQ C13R404 100R405 4.7KR406 4.7KR402 10R403 4.7R407 4.7KR409 4.7KR408 4.7KR411 100R410 100R401 10C403 100u10+C402 1u50+C401 1u50+576302928272625242322211234567891031323334353637383940M-OUT (R)EQ OUT (R)D IN (R)RAI (R)PB OUT (R)MS GV (S)MS GV (R)MA OUTMSIMS DETVCCMUSICS/R (MSGV)F/RMTLM-OUT (L)RQ OUT (L)D IN (L)RAI (L)PB OUT (L)MUTENFI (R)R IN (R)RIPF IN (R)F IN (L)V REFR IN (L)NFI (L)12345678910MODEMODE+BSUB(-)SUB(+)PACK INF/RGNDHEAD LHEAD COMHEAD R97 1u50+C509B.U.42441663181754321SGNDIN2IN1NCVCC678910PGNDOUT2NCOUT1NC4700.01330K 5.1K0.1u50+22u6.3+C514150R5140.01330K 5.1K+R513150C51322u6.3+C517 0.1u5015K1500PR533 470C532 0.01R534 100K4705764R415 100KC404 0.01VDDGND1214133 121145671098775958C533C53497R551 10KSTBYT-ENDGNDGND4675231M+BR5521K2019R556 470R554 4701/2W10968754132HEAD RHEAD COMHEAD LGNDF/RPACK INSUB(+)SUB(-)MODE+BMODEMODEFWD/REVPACKM+RGNDT-ENDSTBYGNDR413 100KR414 100KR412 100KR535R53622KR5314.3KC515R517 R51912KR515C512R51215K1500PC511R511R520R518C51612KR5164.3KR522R521 39C51831274567 B5 3 16 248REAR. LFRONT. LFRONT. RREAR. RP.CONT OUTACCANT.CONT87 56 43 12BATTAREDBLU/WHTBLKYELGRNWHTGRYVIOLGRN/BLKWHT/BLKGRY/BLKVIOL/BLK0.22 0.22+BKRC-4904Y (E)KRC-31Y (E)KRC-394 (E)KRC-366L (M)2-710-222-722-70NONONOYESYESNOYESNOYESNONOYESMODEL NAMEKRC-394Y (E)UNIT R111C308KRC-466R (M) 0-21 YES YES YESA1X86-3512-70X86-3512-70X86-3512-72X86-3512-70X86-3512-70IC1UPD780058GC418UPD780058GC426UPD780058GC418UPD780058GC426UPD780058GC418NONOYESYESNOR112NONOYESYESYESR113+B +B+2V+5V +B+B+B+B+BNOYESYESYESQ301NO NONOYES YESNOYESNONOYESYESR146R118NOYESYESNONOR114No.KRC-37Y (E)KRC-37 (E)+B28+2V+2VKRC-391 (E)KRC-36 (E)CAUTION : For continued safety, replace safety critical components only withmanufacturer's recommended parts (refer to parts list).Indicates safety critical components. To reduce the risk of electric shock,leakage-current or resistance measurements shall be carried out (exposedparts are acceptably insulated from the supply circuit) before the appliance isreturned to the customer.• DC voltages are as measured with a high impedance voltmeter. Values mayvary slightly due to variations between individual instruments or/and units.