Kenwood-KAC-9104-D-Service-Manual 电路图 维修手册.pdf

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1、SERVICE MANUAL This product uses Lead Free solder. This product complies with the RoHS directive for the European market. 2008-1 PRINTED IN JA PAN B53-0611-00 (N) 519 KAC-9104D CLASS D MONO POWER AMPLIFIER BASS BOOST LEVELdB LPF FREQUENCYHz INPUT SENSITIVITYV MINMAX OFF 15Hz ISF LINE INLINE OUT 25Hz

2、 PHASE SP LEVEL INPUT SIGNAL SENSING TURN-ON FUSE30Ax2P .CON POWER INSPEAKER OUTPUT 1800 Accessories (W01-1606-05) Screw & wrench key set (N99-1820-05) Connecting cord assy (E30-6145-05) 19cm Dressing Panel (A21-6637-01): (E,K type) (A21-6638-01): (M type) M type E,K type Fuse (30A) (F52-0015-05) Ra

3、dioFans.CN 收音机爱 好者资料库 2 KAC-9104D BLOCK DIAGRAM FREQ (50200Hz) LEVEL SIFT D-AMP ON/OFF DRIVE FINAL MOS-FET LC FILTERCOMP DEAD TIME SUMMING AMP TRIANGLE WAVE SP OUTPUT BATT. GND P-CON THERMAL DET OVERLOAD DET DC-OFFSET DET MUTEATT 15V AVR POWER ON/OFF B +HB AVR LC FILTER ISO-AMP SP INPUT LINE IN L R

4、(0.25V) L+ L- R- R+ LEVEL 018dB NF DC/DC CON I.S.F SEL. Bass Boost SENS. VOL L.P.F I.S.F 15Hz 25Hz FREQ=40Hz LINE OUT L R INV SEL +6dB6dB +35dB AUTO P-CON 0 10 20 dB 30 40 50 D CLASS POWER AMPFILTERISO AMP LEVEL DIAGRAM IC1 IC2(2/2) IC3(1/2) IC3(2/2) IC4IC5 Q313,314Q315 IC6(2/2) IC6(1/2) IC7IC8,9Q10

5、2-104,108,109 Q105-107, Q110-112 Q701-704 Q101 IC13 IC17 (2/2)Q307-311 Q24-27D21,22Q30 IC15 Q2,3Q4,5 RadioFans.CN 收音机爱 好者资料库 3 KAC-9104D COMPONENTS DESCRIPTION AUDIO UNIT (X09-8750-10) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1 Isolation amplifi erIsolates noises caused

6、by potential differences in GND IC2PhaseChange phase (0 180) IC3INFRA SONIC FILTERCuts off ultra low frequency of audio signal IC4LOW PASS FILTERCuts off high frequency of audio signal IC5BASS BOOSTBass boost (Variable level) IC6 (1/2)Triangular wave generationGenerates reference signal for digitali

7、zing analog signal IC6 (2/2) Error amplifi erCompensates errors by feedback from the output IC7ComparatorDigitalizes by comparing analog signal with triangular waves IC8,9NAND Generates and shapes the inverted waveform and to create dead time in D- class section IC10,11,14Resonance detection circuit

8、 Detects short in SP output circuit, measures over current in the circuit, and activates the protection operation IC13Comparator, Control circuit Controls D/D CON and D-class On/Off with the over current detection and Pcon control signals IC15DC/DC converter ICGenerates drive signal for switching co

9、mponent IC16 (1/2)Attenuation circuit to attenuate input signal by 6dBAttenuates output when temperature in the set becomes too high IC16 (2/2)Attenuation circuit to attenuate input signal by 1.5dBAttenuates output when temperature in the set becomes high IC17 (1/2)Power supply voltage PWM control C

10、ontrols the dead time of DC/DC converter when the power supply voltage in the secondary side becomes too high. Prevents the power supply from pumping IC17 (2/2)Temperature protectionTurns off DC/DC converter when temperature in the set becomes too high Q1-3PCON switchTurns on the circuit when ON sig

11、nal is applied to the PCON circuit Q4,5AUTO PconSends DC voltage from SP IN to Pcon control circuit Q6,7MuteGenerates mute drive signal and turns off LED Q8,9DC/DC converter ON/OFF controlTurns off DC/DC converter when protection is detected Q104.4V AVRVef 5V reference AVR Q11,12DC/DC converter puls

12、e ON/OFF controlON or OFF of DC/DC converter drive waveform Q13-16Gate driverGate driver in DC/DC converter FET Q17-22DC/DC converterDC/DC converter switching Q23FAN driveLimits FAN power supply voltage under the rated voltage Q24-27AVR15V AVR Q28,29Tracking when 15V AVR is turned OFFMatches the tra

13、iling edge of “-15V” AVR with that of “+15V” AVR Q30HB 15V AVRStacking AVR to obtain High+B for D-class Q101,113 D-class amplifi er switch Turns the D-class amplifi er ON or OFF Q102-112 Pulse amplifi cation, shaping and level shift Generates the signal that drives the D-class fi nal FET Q301-304Cur

14、rent-voltage conversionConverts current to voltage to detect over current and sends it to the comparator Q305,306Resonance detection circuit Detects short in SP output circuit, measures over current in the circuit, and activates protection operation Q307-311Latch circuitDetects abnormal output DC vo

15、ltage and retains it Q312Comparator, Control circuit Controls D/D CON and D-class On/Off with the over current detection and Pcon control signals Q313Attenuation circuit to attenuate input signal by 1.5dBAttenuates output when temperature in the set becomes high Q314Attenuation circuit to attenuate

16、input signal by 6dBAttenuates output when temperature in the set becomes too high Q315MuteTurns off audio signal Q701-704 Electric power amplifi cationSwitching of D-class high current RadioFans.CN 收音机爱 好者资料库 4 KAC-9104D ABCDE 1 2 3 4 5 6 7 PC BOARD (FOIL SIDE VIEW) W504 12 W503 W508 W506 W507 W505

17、W502 W501 R162 C24 W153 L1 W144 W145 C143 21 W114 C23 W115 W152 W129 W140 W166 C11 R200 C19 C20 R201 C616 C17 C18 L2 L3 W149 C9 W164 W158 W132 W167 W179 W108 R62R63 W128 W113 R202 W136 W159 W156 W146 W112 W147 W148 W139 W137 C325 W141 W168 W169 W150 W151 W154 W155 W171 C145 C146 R3 W177 W157 W172 W1

18、74 W142 W143 W138 W120 W121 W111 W110 W109 W176 W161 W116 W180 W117 W170 W173 GDSGDS GDSGDSGDSGDS W178 W175 W162 W160 W163 W127 W123 W125 W131 W134 W135 W119 W122 W124 W126 W130 W133 W242 W241 W254 C25 R42 R64 W246 R303 C152 C28 R45 R65 W238 R355 R357 C10 C26 C27 W257W258 C323 C324 W240 W239 R30 R36

19、 R39 R40 R43 R46R47 R50R51 W243 W244 R356 R358 C12 C13 C147 C148 W255 R34 R37 R38 R41 R44 R48 R49 R52 R53 R54 R55 R56 R57 C619 C151 R188 R189 R190 C149 C150 R35 R197 R198 R199 R R75 R359 TH1 W253 W248 W250 W249 W247 W252 W251 W245 EB 85 41 18 916 B EB E BE B E B E B EB E BE B E E SDGSDG SDGSDG D21 D

20、27D28 D22 J3 D1 D2 D3 D16 Q17Q18 Q19Q20Q21Q22 P3 Q704 P1 D35 D15 D25D26 Q703 Q303 P2 Q701Q702 Q CN2 CN1 D20 D33 Q10 Q13 Q16 D13 Q9 Q14 Q15 D17 Q8 Q11 Q12 IC15 IC17 AUDIO UNIT X09-8750-10 (J76-0475-11) X09-8750-10 Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Ref. No. Address Re

21、f. No. Address Ref. No. Address Ref. No. Address Ref. No. Address IC15HIC64HIC113IIC175DQ55IQ105BQ155BQ204BQ252G IC25HIC74HIC133HQ14HQ64GQ115BQ165CQ214BQ262F IC35GIC84IIC143HQ24HQ73GQ125CQ173BQ224BQ272I IC45GIC94HIC155BQ34GQ85BQ135BQ183BQ233FQ282I IC55FIC103IIC165GQ45IQ95BQ145BQ193BQ242FQ292I 5 KAC-

22、9104D Refer to the schematic diagram for the values of resistors and capacitors. JIHGF 1 2 3 4 5 6 7 Ref. No. AddressRef. No. AddressRef. No. AddressRef. No. AddressRef. No. AddressRef. No. AddressRef. No. Address Q304FQ1052FQ1102GQ3023FQ3074GQ3123HQ7022D Q1012GQ1062FQ1112GQ3034FQ3084GQ3135GQ7032E Q

23、1022GQ1072FQ1122GQ3044FQ3094GQ3145HQ7042E Q1032FQ1082GQ1132GQ3053HQ3104GQ3155G Q1043FQ1092GQ3014FQ3063IQ3114GQ7012C R66 C1 C5 C7 C131 C134 C319 C129 W33 W100 W74 C34 W99 C35 C33 C138 W15 R73 W96 W91 W105 R67 W106 C310 W71 W104 C124 W77 W44 C3 C4 C15 C16 W79 W76 W90 W92 W94 W72 W101 W103 W165 C122 C3

24、2 W108 C31 W83 W19 R121 W37 W38 113 W107 W73 W40 W39 W36 C30C29 W34 W46 W47 W75 W85 R115 R118 R116 R119 W95 C103 C104 C110 C111C112C113C114 W58 C117 C118 C119 C120 C126 W41 W63 W68 W66 W102 W57 W27 W32 W12 W10 W70 W18 W93 W98 W97 R101 R102 R117 R120 W3 W5 VOLT CUR W4 W26 W80 W118 C328 W55 W87 W84 W1

25、11 W110 W109 W86 W88 W89 W30 W17 W16 W35 W14 W65 W69 W59 W60 W31 W82 W52 W28 W9 W23 C327 C306 C307 C128 W78 W45 W61 W25 W43 W8 W29 W2 W1 W49 W53 W67 W62 W56 W48 W7 W6 W11 W13 W24 W81 W64 W54 W50 W42 W51 W20 W21 W22 VR1 VR2VR3 C601 C604 C605 C608 W209 W231 R68 D-SWITCH R903 C301 R25 R71 R303 C602 C60

26、3 C606 C607 R904 C302 R305 W226 R69 R177 R204 R178 R203 R176 R182 C611 R31 R59 C2 W234 W224 C107 C121 C123 W233 R70 R195 W225 R179 R191 R180 R192 R194 C154C155 R181 R183 R196 R187 R186 R193 C317 W235 C312 R20 R113 R127 R128 R130 R131 R132 R133 R135 R136 R146 R149 R10 R13 C142 C101C102 C115 R103 R104

27、 R108 R109 R112 C144 C105 C106 C108 C109 C125 C127 W230 C617 R309 R311 R338 R308 R337 R8 R9 R21 R22 C303 C304 R60 R61 R72 R105 R106 R107 R110 R111 R114 R122 R123 R124R126 R129 R134 R137 R138 R139 R140 R141 R142 R143 R144 R145 R147 R148R150 C315 C313 C314 C316 R307 R310 R343 R336 R335 C311 R340 R341

28、R342 R306 R339 R184 R185 W259 R12 R11 R198 R301 R302 R304 W207 R901 R902 C153 R125 R374 R353R352 R354 W256 R373 R372 C322 W223 R371 W228 R361 W202 W201 W205 W211 W215 W220 W219 W232 W229 C610 R172 R367 R168 R166 C615 C137 R173 R322 R33 R24 C609 R368 C318 C320 R344 R347 R1 R5 R7 C8 C130 C140 C139 C32

29、1 C308 R4 R2 R29 R153 R154 R160 R167 R324 R350R346 C6 C614 C132 C612 C135 C136 C309 C613 C326 R6 R23 R26 R27 R28 R32 R151 R369 R155 R156 R157 R158 R159 R161 R175 R174 R163 R165 R164 R171 R169 R170 R325 R323 R345 R348 R349 R152 C305 R360 R327 R320 R328 R351 R332 R314 R364 R366 R315 R333 R365 R334 R33

30、0 R329 R317 R319 R313 R318 R362 R321 R316 R331 R312 R363 W203 W212 W204 W206 W210 W213 W218 W214 W216 W217 W227 W208 W222 W22 INPUT SENS INV L.P.F I.S.F B.B BE EB EB EB EBEB EB E EB EB B EB EB EB EB EB 85 14 85 14 85 14 85 14 85 14 85 14 85 14 85 14 85 14 41 58 41 58 41 58 17 814 17 814 EB B E BE B

31、E BE B EB E B E BE BE BE BE BE BE B E B E BE B E B E BE BE B E B E BE BE BE BEBE G D12 Q25 Q108 Q103 Q104 Q106 Q105 Q109 Q3 D110 D305 D10 D11 D14 D106 D27D28 Q301 Q27 Q302 Q23 J1 J2 D7 D25D26 Q30 Q303 Q304 D30 D32 Q24Q26 Q111 Q110 S2 S3 D102 D104 Q28 Q113 D29 D103 D105 D113 D23 D24 Q29 Q102 Q101 Q11

32、2 D13 D18 Q4 D302 D301 D309 D19 D101 Q305 Q5 Q107 D308 D307 D34 Q313 D315 D316 D109 D310 Q307 Q311 D9 D108 Q1 Q2 Q7 Q315 Q314 Q308 Q309 Q310 D5 D4 D6 D8 D112 D111 D107 D311 Q6 D303 D304 D314 D312 D313 Q306 Q312 D306 IC1 IC2IC3IC4IC5 IC14 IC10 IC7IC6 IC8 IC9 IC16 IC11 IC13 6 KAC-9104D X09-8750-10 (1/

33、3) ABCDE 1 2 3 4 5 6 7 84.5V -84.5V IC7 (X09-8750-10) R173 4 136 3 15K10K R70 C32 47u25 R71 C31 47u25 2.2 R903 C26 0.01 R69 4.7K 47u25 TP107 C30C29 47u25 C27 0.01 R902 R67 47K 100 C28 0.01 R68 TP110 820 TP106 R901 100 R66 47K C25 0.01 R904 2.2 TP91 TP78 W502 W506 47u25 R62 22 1/2W 3300u100 TP97 R63C

34、20 TP98 3300u100 C24 22 1/2W 1000P C19 TP90 C23 TP88 1000P TP85 TP89 TP86 L3 W507 W501 56K R73 47u25 TP93 C35 C34 100K 47u50 5.6K C33 R72 TP92 680 C138 47u25 R172 1.1K TP210 C140 56P R175 10K 2 7 5 4.7K4.7K R51 W508 R50 R47 1.5K R46 1.5K TP77 10 9 8 C139 TP212 R174 10K 47P 12 9 8 11 5 6 4.7K R108 15

35、K R116 10u50 47K C104 10u50 1000P 10 12 78 9 34 56 L+ R- L- 2.2K R+ 2.2K R115 TP140 TP133 R102 1K C102 TP154 10u50 47K C114 C113 10u50 47K R120 R119 C112 C111 10u50 R118 R117 47K R106 27K R104 10K R109 10K 1000P C103 10u50 C101 R101 1K TP132 TP130 R105 R103 10K 27K R107 1K TP138 4 2 38 C119C118 86 T

36、P144 R156 47K 36 C128 10u50 R368 150K R367 TP208 R152 R125 8.2K R151 2K 2K C131 47u25 TP209 1 14 4 R369 10K TP205 R153 1u50R155 33K 6.8K R154 R157 TP191 C130 0.1 1K 75 R167 C129 R166 10K TP142 TP145 330P 3 4 2 1 8 TP200 C135 TP199 6.8K 10K TP197 0.01 R165 C136 5 V- TP201 R164 4 R124 10K 3 2 R128 C11

37、7 10u50 1 TP193 TP192 TP213 R161 68K C134 3300P TP214 TP215 R162 24K R159 10K R171 3.9K 1K 470 5 6 7 TP196 R160 10K TP194 R179 TP218 R191 R192 680 4.7K 10K TP299 R177 R178 1.8K 1.8K R180 C153 6800P V+ 7 8 TP202 2 1 TP204 R169 6.2K 4 R130 30K 1u50 TP162 1u50 5 1 R 6 5 33P R111 10K 1 C108 TP143 7 6 5

38、C110 10u50 14 8 TP156 3 2 6 5 7 TP161 TP160 R129 3.9K 8 4 7 C603 0.01 TP223 TP224 56 R49 56 R48 1 3 2 3 1 2 3900u16 C17 3900u16 C18 1 2 1 2 R64 47KR65 47K TP100 TP101 TP102TP105 TP104 TP103 TP114 TP116 TP115 TP117 TP113 TP111 TP112 TP118 10 TP135 TP131 TP137 0.01 C115 33K R110 47P C106 100P C107 10K

39、 R113 75K R122 75K R123 10K R114 100P C109 0.01 C601 0.01 C602 R126 10K 47K R127 TP153 TP152 TP151 TP150 TP155 C132 47P 680K R158 C609 0.01 0.01 C610 R170 10K R168 6.2K R163 10K 10K R112 5.6K R121 33P C105 TP216 TP94 TP95 0.01 C137 13 14 TP64 TP65 B +B +15V 15V15V +15V +15V 15V HBHB HB +B +B +15V 15

40、V + + + + + + + + + + + + + + + + + + + + + + + + R54 47 R53 47 R52 47R55 47 R56 47 R57 47 Q26 Q29 Q27 D24D23 Q28 Q25 Q24 D22 Q22Q21Q20 Q16 Q12 D17 Q18 D28 D21 Q19 Q30 D27 D26 D25 D29 D109 D110 D112 Q15 Q14 Q17 Q13 IC8 (3/4) D111 (3/4) IC9 Q108 (1/2) D30 D32 INPUT SP J2 RL D101 D104D105 D103 IN/OUT

41、RL J1 D102 D315 Q313Q314 Q315 (1/4) IC8 IC8(2/4) IC6 (1/2) (2/2) IC2 Q101 (4/4) IC8 IC9 (2/4) IC6(2/2) D108 Q102 D113 D107 D106 Q IC1 (2/2) IC1 S3 IC2 (1/2) (1/2) IC3 ISO. AMP OFF/ON PHASE SW INFRA FILTER SONIC ATTMUTE DC/DC CONVERTER 7 KAC-9104D X09-8750-10 (2/3) JIHGF 1.6V 1.6V 15.0V-15.0V 98.6V 1

42、.8V 3.5V IC15 IC10 16K R137 10K 1.5K1.5K 10K R365 4.7K R366 10K TP71 R364 0.01 C326 TP69 1K 1 3 2 R360 R362 TP68 10u50 C328 R373 4.7K R372 10K 7 10K R374 58 R371 1K C322 0.01 4 6 R353 15K R354 470K R352 16K 4.7K R194 910 2.2u50 86 9 TP218 R191 R193 R192 680 TP225 K TP299 1.8K R180 153 00P TP165 4 30

43、K 5 R131 6.8K TP164 7 10K R176 R132 24K R135 R136 47K 10K TP170 3 2 29 K TP163 C120 C603 0.01 C604 0.01 TP167 TP168 TP171 TP169 R309 15K R202 2W 10 R196 R195 TP249 TP54 TP53 1500P 8 7 6 5 4 3 2 1 C325 TH1 TP61 1 TP57 R40 10K 100K0.01 C12 2 4 TP56 R41 R358 R356 TP76 3.3K C324 0.1 TP55 38 TP51 9.1K 10

44、u50 R75 TP60 10K 47u25 R35 39010K C11 10K R30 TP300 TP301 R37 R38 10 C9 47u25 15K R357 R355 10K 5 6 7 TP238 R197 47K 0.02 R201 5W C143 R31 1.2K 11 GND C1 RT E1 E2 C2 9 10 OUTCTRL FBACK CT DTC IN1+ IN1- 14 VCC REF 12 13 IN2- IN2+ 15 16 R28R27 TP48 C145 C146 10 10 C303 1000P V+ 7 8 1 T R148 C124 3.3K1

45、5K TP176 R302 3.3K R301 3.3K 4 8 680 TP227 51 R185 R184 R182 750 180 150 51 R199 R198 10 R188 47K R186 R183 R181 470 51 R189 R187 51 51 R190 10 10 4.7 TP247 2 3 TP223 1 C121 0.15 C142 0.068 0.02 R200 5W R143 12K C123 0.068 1 R142 15K 5 0.15 C144 15K R144 6 0.033 TP258 R305 3.3K C302 1000P TP257 TP26

46、0 TP262 R304 510K C611 0.01 R308 4.7K TP263 5 6 V- 2 4 3 TP275 R322 10K TP261 R323 1K TP274 C308 1000P 12 13 7 14 1 1000P C301 R303 3.6K TP185 TP187 TP180 R146 150K 7 C125 0.1 6 4 85 R147 7 240 C126 4.7u50 T 2.2K TP184 R149 10K TP173 TP172 R138 R140 2.2K R139 15K R141 TP174 TP175 TP179 2.2K R145 0.0

47、1 C606 L2 TP43 TP259 TP245 TP242 TP241TP239 TP234 TP233 TP229 TP231 TP224 TP228 TP230 TP243TP240 TP244 1000P C10 150K R34 22K R36 R42 220K R44 5.1K R45 220K R43 5.1K C13 0.01 10K R39 R359 330K C323 0.1 0.01 C617 12K R361 470K R363 (A) 10K VR1 430 R133 1K R134 VR2 50K (C) 0.022 C122 VR3 10K (C) 0.01

48、C607 0.01 C608 0.01 C605 TP64 TP65 14 13 10u50 C327 9 10 27K R307 2.2K R306 73 9 10 B +B +B B BUBU SW14V SW14VSW14V HB +B+B +15V 15V +15V +15V 15V +15V+15V 15V15V + + + + + 62uH 10u100 C154 10u100 C155 R204 100K R203 100K + Q12 D17 Q11 (1/2) IC16 D314 IC16 D316 (2/2) Q108 Q101 Q102 D113 Q113 (1/2) I

49、C3 S2 D35 D16 Q10 IC17 (1/2) D15 Q8 D34 Q9 (2/2) IC17 Q112 Q109 D10 D11 D13 D12 Q6 Q7 Q D312 D301 Q703 Q701 Q110Q111 Q107 Q105 Q104 Q103 Q106 Q704 Q702 IC3 (2/2) (1/2) IC4 Q303 Q301 D302 Q302 Q304 IC9 (4/4) IC4 (2/2) (2/2) IC5 INPUT SENS I.S.F OFF/15Hz/25Hz 18dB L.P.F 50-200Hz 24dB GAIN=0 0-+18dB F=40Hz B.B LOGO-LED ATT-6dB ATT-1.5dB INFRA FILTER SONIC D AMP SW D CLASS DRV D CLASS FINAL CURRENT DET PUMPING PROTEC THERMAL PROTEC DC/DC CONTROL MU 4.4V 8 KAC-9104D X09-8750-10 (3/3) ONMLK 1 2 3 4 5 6 7 IC13 KAC-9104D 2 1 C16 10u50 TP297 R61 1K TP298 C15 10u50 TP296 TP295 R60