Kenwood-KAC-8404-Service-Manual 电路图 维修手册.pdf

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1、This product uses Lead Free solder. This product complies with the RoHS directive for the European market. SERVICE MANUAL 2007-11 PRINTED IN JA PAN B53-0600-00 (N) 519 KAC-8404 POWER AMPLIFIER Accessories (W01-1606-05) Screw & wrench key set (N99-1820-05) Connecting cord assy (E30-6144-05) 19cm 4/3/

2、2 Channel LINE IN SP LEVEL INPUT SIGNAL SENSING TURN-ON FUSE40AP .CON LEFT BRIDGED POWER INSPEAKER OUTPUT RIGHTLEFT BRIDGED SPEAKER OUTPUT RIGHT 4/3/2 Channel M type E,K type Dressing Panel (A21-6635-02): (E,K type) (A21-6636-02): (M type) Fuse (40A) (F52-0016-05) RadioFans.CN 收音机爱 好者资料库 2 KAC-8404

3、BLOCK DIAGRAM 50W x4ch / 4 75W x4ch / 2 LINE IN (0.2V5.0V) B.Boost SEL. L.P.F / OFF/ H.P.F SPEAKER LEVEL INPUT F.P.H F.P.L F.P.H F.P.L F.P.H F.P.L F.P.H F.P.L )Bd21- ( zH002zH05 F.P.L )Bd21- ( zH002zH05 F.P.H SP OUTPUT ETUMTTA POWER AMP AL ETUMTTA (INV) POWER AMP AR SP OUTPUT ETUMTTA POWER AMP BL ET

4、UMTTA (INV) POWER AMP BR SENS. VOL SENS. VOL ssaB t sooB ssaB t sooB ST / MONO SEL ST / MONO SEL -OSI PMA -OSI PMA LA RA PMA-OSI PMA-OSILB RB +L -L -R +R +L -L -R +R 40Hz +18dB BATT. GND P- CON POWER INDI. LAMREHT TED TESFFO-CD TED REWOP FFO/NO CD/CD NOC NAF RVA NAF RETLIF CL NOC-P YTIROIRP 15V RVA

5、DAOLREVO TED B LANGIS ROTCETED IC3,4 IC3,4 IC1,2 IC1,2 IC2 IC3 IC2 IC3 IC8 IC9 IC8 IC9 IC5,7 IC5,7 Q709Q701-704 Q11,12IC5 Q707,708Q703 Q710 IC4 IC4 Q301,315 Q302,316 Q401,415 Q402,416 Q303 Q304 Q403 Q404 TH1 X09-874X08-443 X08-443 RadioFans.CN 收音机爱 好者资料库 3 KAC-8404 COMPONENTS DESCRIPTION ADJUSTMENT

6、No.ITEMALIGNMENT POINTMETHODALIGN FORNOTE 1IDEL CURRENT VR5 (A-Lch) VR6 (A-Rch) VR7 (B-Lch) VR8 (B-Rch) Connet a DC voltmeter between check land (Refer to a fi gure) 2.5mVAfter Power on 5minutes PREAMPLIFIER UNIT (X08-4430-10) Ref. No.Application/Function IC1-3HPF, LPF IC4Reverse circuit IC5,7Bass B

7、oost IC6,8,9HPF, LPF IC10Attenuator circuit Q301,302,315,316, Q401,402,415,416 Attenuator circuit Q303,304,403,404Mute circuit Q305-308,Q405-408Differential circuit (First stage) Q309,310,313,314, Q409,410,413,414 Differential circuit (Second stage) Q311,312,411,412Current mirror Q701-704DC protecti

8、on Q705-708Shock noise mute Q709Over current detection Q710Stabilized power supply AUDIO UNIT (X09-8740-10) Ref. No.Application/Function IC1-4Isolation circuit IC5DC-DC IC Q1,2Switch Q3-6Gate driver Q7-10DC/DC comparator Q11,12Constant voltage circuit Q301,302,401,402Temperature compensation Q303-30

9、6,Q403-406Over current detection Q307-310,Q407-410Darlington Q311-314,Q411-414Final stage Q701Voltage supply Q702Over voltage detection Q703P-CON Q704,705Mute driver Q706Shock noise mute driver Q707,708Auto P-CON driver VR8 VR7VR6 VR5 X08-443 (B/2) Q311 Q313 Q312Q314 R319 W98 DC voltmeter A-Lch 2.5m

10、V + - W83R320 DC voltmeter A-Rch 2.5mV Q413 Q411 Q412 Q414 B-Rch A-Rch B-Lch A-Lch +- - + DC voltmeter B-Lch 2.5mV W8 W45 R420 R419 DC voltmeter B-Rch 2.5mV - + RadioFans.CN 收音机爱 好者资料库 4 KAC-8404 ABCDE 1 2 3 4 5 6 7 AUDIO UNIT X09-8740-10 (J76-0471-01) C13 C8 C9 L2 C16 C17 C1 C2 C4C6 C12 C14 C217 C2

11、18 L3 W1 C701 C702 C703 C704 C705 W2 R23 R319 R320 R321 R322 R323R324 R423R424 W87 W88 W100 W103 W67 W68 W73 W65 W95 W93 W78 W64 W55 W57 W59 W62 W101 W102 W104 W69 W51 W42 W54 W56 W58 W61 W41 W44 W43 W86 W76 W77 W45 W36 W75 W94 W80 W106 W79 W49W47 W70 W40 W81 W39 W37 W38 W82 W99 W71 W84 W83 W50 W72

12、W66 W53 W35 W60 W48 W105 W85 W92 W97 W91 W74 W46 W89 W63 W52 W98 W90 BE BE BE EBEB BE BE BE BE EB E B EBEB E B W232 W310 W241 R703 R701 R704 C214 C216 C3 C5 C7 C10C11 C207 C208 C209 C210 C211 C212 C301 C302 C303 C304 C305 C306 C307 C308 C407 C706 R1 R2 R3 R4 R5 W906 R7 R8 R9 R10 R11 R12 R13 R14 R15

13、R16 R17 SDGSDGSDGSDG R18 R19 R20 R21 R22 R24R25 R26 EB W286 R213 R214 R215 R216 R217 R218 R219 R220 W291 W305 R301 R302 R303 R304 R305 R306 R307 R308 R309 R310 R311 R312 R313 R314 R315 R316 R317 R318 R702 R705 R706 R707 R708 R709 R710 R711 R712 R713 R714 R715 R716 R717 R718 R719 R720 R721 111 122 R7

14、22 R723 R724 R725 R726 TH1 W236 W250 W235 W312 R28 W259 W277 W244 W238 W308 W260 W242 W293 W292 W272 W309 W269 W268 W270 81 W313 R727 W262 W299 W276 W301 W302 W300 W297 W298 W306 W294 W307 W280 W281 W287 W283 W284 W295 W304 W285 W303 W296 W278 W279 W273 W274 W289 W288 W290 W282 W275 W267 W233 W237 W

15、231 W249 W239 W256 W248 W245 W247 W243 W266 W264 W234 W265 W240 W263 W258 W271 W252 W251 W257 W255 W261 W254 W246 W253 R331 R332 W31 18 169 14 58 7 28 B E BE BE BE BE BE B EB E BEB E B E BE B E EB J4 D7 Q309 Q310 Q313 Q314 Q701 Q11 D1 J3 D6 P1 Q7 Q8 Q9 Q10 Q301 Q302 Q304 Q305 Q306 Q307 Q308 Q311 Q31

16、2 CN33 CN1 WH5 Q303 D709 D2 D3 D4 D5 D8 D301 D302 D303 D304 D701 D702 D703 D704 D705 D706 D707 D708 D710 D713 Q1 Q2 Q3 Q4 Q5Q6 Q702 Q703 Q704 Q705 Q706 Q707 Q708 IC4 IC5 PC BOARD (FOIL SIDE VIEW) 5 KAC-8404 JIHGF 1 2 3 4 5 6 7 C17 C15 C100 C103 C104 C117 C118 C123 C124 C125 C126 C203 C204 C223 C224

17、C225 C226 W31 R419 R420 R421 EBEBEBEB BE R422 R424 W8 W9 W27 W14 W7 W6 W29 W16 W30 W12 W13 W17 W11 W15 W19 W20 W21 W22 W10 W4 W5 W33 W32 W28 W18 W35 W34 W3 W23 W24 W25 W26 EB BE BE BE EB EB EB EB EB W232 R27 C113 C114 C213 C115 C116 C215 C101 C102 C105 C106 C107 C108 C109 C110 C111 C112 C122 C201 C2

18、02 C205 C206 C222 C401C402 C403 C404 C405 C406 C408 W203 EBEB R100 R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 W202 W209 W219 R125R126 R127 R128 R129 R130 R201 R202 R203 R204 R205 R206 R207 R208 R209 R210 R211 R212 R225R226 R227 R228 R229 R230

19、R401 R402 R403 R404 R405 R406 R407 R408 R409 R410 R411 R412 R413 R414 R415 R416 R417 R418 6 W212 W235 W222 W201 W205 W207 W221 W211 W204 W220 W226 W224 W213 W223 17 28 W210 W214 W216 W215 W233 W231 W225 W227 W228 W234 W206 W208 R431 W229 W217W218 R432 W230 1 17 28 4 58 14 58 14 58 J4 Q12 Q409 Q410 Q

20、413 Q414 1 J1 J2 Q401Q402 Q403 Q404 Q405 Q406 Q407 Q408 Q411Q412 CN1 CN44 D101 D201 D102 D202 D9 D103 D203 D401 D402 D403 D404 D711 D712 IC1 IC2 IC3 X09-8740-10 Ref. No.Address IC16G IC25G IC36F IC46E IC56B Q16B Q26A Q36A Q46A Q56B Q66A Q75B Q84B Q96B Q105B Q112E Q122F Q3013B Q3022D Q3033C Q3042C Q3

21、052B Q3062E Q3073B Q3082C Q3092B Q3102D Q3113B Q3122C Q3132B Q3142D Q4013G Q4024G Q4033G Q4044G Q4052G Q4064G Q4073G Q4084G Q4092G Q4105G Q4113G Q4124G Q4132G Q4145G Q7015D Q7026C Q7036C Q7045C Q7055C Q7066C Q7075C Q7085C Refer to the schematic diagram for the values of resistors and capacitors. 6 K

22、AC-8404 KLMNO 1 2 3 4 5 6 7 PREAMPLIFIER UNIT X08-4430-10 B/2 (J76-0468-02) VR5 VR6 VR7 VR8 C706 R337C6 C5 C301 C302 C309 C310 C319 C401 C402 C409 C410 C704 C707C708 C710 C711 A-R B-L A-L 2 1 B-R W86 W122 W104 W80 W78 W96 W103 W73 W82W72 W83 W68 W107 W65 W63 W62 W75 W114 W116 W44 W19 W109 W60 W76 W7

23、7 W115 W69 W64 W88 W111 W101 W110 W105 W98 W87 W74 W70 C714 W89 W97 W99 W85 W95 W90 W93 W100 W81 W84 W94 W92 W91 W112 W117 W102 W61 W71 W66 W67 W120 W106 W108 W119 W118 W121 EB BE BE BE EB EB EB BE BE BE BE BE W265 C323 R344 C3 R342 R736 C713 R311R312 R411R412 R723 R728 C4 R708 R711 R719 C303 C304 C

24、305 C306 C307 C308 C311 C312 C313C314 C315C316 C317 C318 C403 C404 C405 C406 C407 C408 C411 C412 C413 C414 C415 C416 C417 C418 C701 C702 C703 C705 C709 C712 R343 R301 R302 R303 R304 R305 R306 R307 R308 R309 R310 R313 R314 R315 R316 R317 R318 R319 R320 R321 R322 R323 R324 R325R326 R327 R328 R329R330

25、R333 R334 W935 W936 R401 R402 R403 R404 R405 R406 R407 R408 R409 R410 R413 R414 R415 R416 R417 R418 R419R420 R421 R422 R423 R424 R425R426 R427 R428 R429 R430 R433 R434 W945 W946 R701 R702 R703 R704 R705 R706 R707 R709 R710 R712 R713 R714 R715 R716 R717 R718 R720 R721 R722 R724 R725 R726 R727 R729 R7

26、30 C322 R338 R339 R341 R437 C423 R443 R441 R438 W264 C422 R735 R734 W276 R733 W250 W263 W275 711 8 1 11 82212 W271 C901 W270 W262 C903 W267 C902 W273 W254 R442 R444 R732 R731 W252 W258 W248 W261W260 W251 W253 W257 W256 W255W259 1 1 2 7 28 W272 W274 C904 C906 C908 C905C907 58 41 BE BE BE B EB E B E B

27、 E BE B E BE B E EB BEBE B E BE BE B E B E BE BE BE BE BE BE B EB E B E B EB E IC10 Q309 Q310 Q311 Q312 Q313 Q314 Q409 Q410 Q411 Q412 Q413 Q414 Q710 CN22 CN3 CN6 CN7 CN4 CN5 Q709 D301 D302 D303 D304 D305 D306 D401 D402 D403 D404 D405 D406 D701 D702 D703 D704 D705 Q301 Q302 Q303 Q304 Q305 Q306 Q307 Q

28、308 Q401 Q402 Q403 Q404 Q405 Q406 Q407 Q408 Q701Q702 Q703 Q704 Q705 Q706 Q707 Q708 Q315 Q316 Q415 Q416 X08-4430-10 B/2 Ref. No.Address IC106N Q3015M Q3024L Q3035L Q3044L Q3055L Q3064L Q3075L Q3084L Q3095L Q3104L Q3115M Q3124L Q3135L Q3144L Q3155M Q3164M Q4015M Q4024M Q4035M Q4044M Q4055N Q4064N Q407

29、5N Q4084N Q4095N Q4104N Q4115N Q4124N Q4135N Q4144M Q4155M Q4164M Q7016K Q7026K Q7036K Q7046L Q7056L Q7066M Q7076L Q7086M Q7096L Q7106M PC BOARD (FOIL SIDE VIEW) Refer to the schematic diagram for the values of resistors and capacitors. 7 KAC-8404 TSRQP 1 2 3 4 5 6 7 PREAMPLIFIER UNIT X08-4430-10 A/

30、2 (J76-0468-02) 200mV 5V A-SENS 5V 200mV L/OFF/HST/MONO OFF/ON B.B ST/MONOL/OFF/H 50Hz 200Hz AFBFB-SENS 200Hz 50Hz C111 C112 C113 C114 C119 C211 C212 C221 C222 C223 C224 C225 C226 C229 W11 W8 W38 W4 W3 W20 W51 W10 W2 W1 W41 W47 W34 W43 W50 W46 W52 W55 W48 W49 W53 W56 W39 W36 W54 W30 W57 W59 W29 W23

31、W28 W35 W31 W25 W15 W27 W22 W18 W17 W9 W58 W37 W7 W13 W6 W12 W42 W45 W21 W33 W26 82 71 W32 W5 W14 VR1VR2 VR3VR4 W225 W233 W204 W203 28 17 W210 W249 W242 C101 C109 C110 C116 C202 C205 C208 C217 C219 C102 C107 C108 C117 C201 C206 C207 C218 C220 C103 C104 C105 C106 C115 C118 C203 C204 C209 C210 C213 C2

32、14 C215 C216 C227 C228 R101 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R123 W901 W902 R203 R204 R205 R206 R207 R208 R209 R210 R211 R212 R213 R214 W236 R219 R220 R221 R222 R223 R224 R225 R226 R227 R228 R231 R232 R233R234 R235 R236 R237 R23

33、8 R239 R240 R241 R242 R243 W221 W230 W215 W241 W219 W228 W232 W209 W238 W207 W220 W208 W211 W212 C1 C2 W214 W213 W231 W229 W224 W223 W246 W240 W245 W235 W244 W222 W226 W217 W243 W216 W268 W234 W269 W239 W227 W277 W205 W206 W202 W218 W237 W201 W247 W278 W279W280 W281 W282 14 58 14 58 14 58 14 58 14 5

34、8 14 58 14 58 14 58 14 58 IC1 IC2 IC3 IC4 IC5 IC6 IC7IC8IC9 CN2 CN11 S2 S3S4 S5 S6 X08-4430-10 A/2 Ref. No.Address IC15S IC24S IC33S IC42R IC52S IC62R IC72R IC82Q IC92Q PC BOARD (FOIL SIDE VIEW) Refer to the schematic diagram for the values of resistors and capacitors. 8 KAC-8404 X09-8740-10 (1/2) A

35、BCDE 1 2 3 4 5 6 7 +15.0V -15.0V (X09-8740-10) A B D102 (1/2) IC1 D101 (2/2) IC1 D203 J2 IC2 (1/2) (2/2) IC2 D713 D712 Q707 Q708 D5,101,201,711,712 J1 A B RL LR D103 LM1MA142WA-G LM1MA142WK-G UDZS10BD704 D710 D708,709 : : : B30-1743-05 B30-1770-05 D102,202,303,304,403, D702 D701 D103,203 404 : : : :

36、 D8,9 D7 D6 : : : : UDZS15B UDZS6.8B UMZ6.8N UDZS16B FRH10A20 FCH10A20 D202 IC3 (2/2) Q305,306,405,406 2SB1241Q701 703,705-707,713 D2-4,301,302,401,402, Q702-704,706,708 D1 : : Q705,707: : : 1SS355 RM4ZLF-J4NF 2SA1576A(R,S) 2SC4081 Q313,314,413,414 Q311,312,411,412 Q309,310,409,410 Q307,308,407,408

37、: : : : : 2SA817A-F 2SA1695NF 2SC4468NF 2SC1627A-F 2SA992-A(F,E) 2SC1845-A(F,E) 2SC4097Q3,4 Q303,304,403,404 Q301,302,401,402 : : Q7-10 Q5,6 Q12 Q11 : : : : : 2SC3419(Y)-F 2SB1375-F 2SD2012-F STP60NF06FP 2SA1577 TL494IDR BA4560RFIC1-4 Q1,2 IC5 : : : DTA114EUA D201 IC3 (1/2) IC4 (2/2) D711 (1/2) IC4

38、Q402 Q401 Q302 Q301 CN1CN33 X08-A/2- CN11 1/2 X08-B/2- CN3 SP LEVEL IN ISO AUTO P-CON DRV ISO R125 2.2K R112 10K R114 10K C223 10u50 C225 10u50 C226 10u50 C224 10u50 C124 10u50 C126 10u50 C125 10u50 R108 R110 1000P R102 1K C102 C104 10u50 R104 10K 12K R106 3 4.7K C106 15P 2 4 1 R107 10K10K 1000P C10

39、1 R101 1K R103 10K C103 10u50 R109 12K 6 5 7 8 BR+ BL+ BL- BR- R225 2.2K 100K R227 R229 100K R226 2.2K R230 100K R228 100K AR+ AL+ AL- AR- 100K R126 2.2K R130 R128 100K R129 100K 4 2 3 C118 47u25 1 R118 10K C112 100P C111 100P R117 10K 85 6 C117 47u25 7 C706 1000P R724 10K R723 100K 2.2K C704 10u50

40、R722 C705 10u50 R726 10K R725 4.7K C123 10u50 R212 10K R214 10K R213 10K TP100 -REDR- R127 100K C204R202 1K10u50 C206 R206 4.7K 15P 5 7 4 R210 12K R208 6 10K C215 0.01 1000P C201 R203 10K R209 12K R207 10K R201 1K C203 10u50 2 3 1 8 C17 47u25 C16 47u25 R218 10K 4 5 C208 100P 6 C218 47u25 7 C212 100P

41、 R217 10K C211 100P C207 100P 100u25 C14 100u25 C15 83 2 C217 47u25 1 R432 1.8K R332 1.8K R431 1.8K 10K R111 4.7K R105 15P C109 15P C105 100P C107 10K R115 10K R113 TP103 TP107 TP105 15P C110 100P C108 10K R116 TP106 TP104 TP108 1000P C100 1K R100 47K R120 47K R119 0.01 C115 0.01 C113 TP203 TP205 TP

42、207 TP204 TP206 TP208 1000P C202 10K R204 0.01 C213 10K R216 15P C210 47K R220 15P C205 4.7K R205 10K R211 15P C209 10K R215 47K R219 1.8K R331 TP213 TP214 TP212 TP211 TP111 TP112 TP113 TP114 TP722 TP723 TP721 ISO-AL 8 ISO-BL GND ISO-AR 5672 -15V NC ISO-BR 34 +15V 13 AL33 AR36 6 AL34 AR35 45 AL31 AL

43、32 12 24 22 21 23 21 23 22 24 11 13 12 14 TP202 TP201 TP102 TP101 0.01 C122 0.01 C222 TP210 TP120 TP110 7 8 TP304 TP302 TP306 TP305 TP301 TP303 D701 Q703 5 4 36 33 32 31 35 34 7 8 4 5 47 46 48 45 42 41 44 43 37 38 35 36 34 33 31 32 0.01 C114 0.01 C116 0.01 C216 0.01 C214 AR- AL- AR+ AL+BL+ BL- BR- B

44、R+ BL+ BR- BL- BR+ AL+ AR- AL- AR+ 11 13 14 12 +15V 15V 15V +15V +15V 15V +15V 15V +15V 15V15V +15V + + + + + + + + + + + + + + + + + + + + CAUTION : For contin- ued safety, re place safe- ty critical com po nents only with manufacturers rec om mend ed parts (re- fer to parts list). Indicates safety

45、 critical com po nents. To reduce the risk of electric shock, leakage-cur rent or re- sis tance mea sure ments shall be carried out (ex- posed parts are ac cept- ably in su lat ed from the supply cir cuit) be fore the ap pli ance is returned to the customer. DC voltages are as measured with a high i

46、mpedance volt me- ter. Val ues may vary slight ly due to vari a- tions between in di- vid u al in stru ments or/ and units. 9 KAC-8404 X09-8740-10 (2/2) JIHGF 1 2 3 4 5 6 7 37.3V)33.6V(MAX 5.0V 14.4V -33.6V 33.6V IC5 BC D KAC-8404 (1/2) Q12 D8D9 Q11 D7 D6 Q10Q8 Q9Q7 Q408 Q402 D402 Q404 Q412 Q409 Q40

47、6 D404 Q401 D403 Q405 Q410 Q414 Q413 Q407 Q308 D302D401 Q403 Q302 Q304 D304 Q306 Q411 Q312 Q3 Q309 Q307 Q305 D303 Q301 Q303 D301 Q310 Q314 Q313 Q311 Q4 Q2 Q6 Q5 Q1 D5 D4 D3 Q706 D710 Q704 D707 D706 Q705 D2 J4 D705 D704 Q703 Q702 D701 D702 D708 D709 P1 D1 J3 CN44WH5 Q701 D703 1/2 X08-B/2- CN3 X08-B/2

48、- CN4 1/2 CN5 X08-B/2- 1/2 SIGNAL LINE B LINE B LINE GND LINE DC/DC CONVERTER MUTE DRV. P-CON DC/DC CONTROL 47u2547u25 C13 3300u50 C12 3300u50 100u25 R27 5.6K C14 100u25 C15 R26 5.6K C710 C11 1500P1/2W R25 10C10 1500P R24 1/2W 10 R23 C9 2200u16 C8 2200u16 L2 R18 4.7K 1500P R22 56 R20 56 1/2W R21 56

49、R17 4.7K R19 56 1000P R432 1.8K R402 100 1.2K R406 C404 4.7 R412 R420 0.1 2W 1000P1000P1000P C406 R408 1.2K R404 100 R403 100 1.2K R407 C405 1.2K R405 C403 R422 0.1 2W R413 4.7 1000P1000P R332 1.8K R431 1.8K R401 100 R302 100 C304 R306 1.2K1.2K R308 C306 R312 4.7 R310 470 R320 0.1 2W 4.7 R318 1K R322 0.1 2W TP718 12 5 1000P1000P R307 1.2K C305 R304 100 100 R303 1.2K R305 C303 100 R301 R321 0.1 2W R314 R313 4.7 R317 1K R315 1K R309 470 R319 0.1 2W R311 4.7 R14 1.5K R16 56 R15 56 R12 10K TH1 TP9 VCC GND C1 RT CT 8 7 6 E1 E2 C2 9 10 11 R715 1.5K R713 10K 1K R714 C703 33u35 R712