Kenwood-KACX-40-Service-Manual 电路图 维修手册.pdf

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1、 2006-12 PRINTED IN JAPAN B53-0485-00 (N) 719 POWER AMPLIFIER KAC-X40 SERVICE MANUAL This product uses Lead Free solder. Accessories (W01-1606-05) Screw set (N99-1794-05) Dressing Panel (A21-6571-01) : K type (A21-6572-01) : M type Fuse (25A) (F52-0014-05) K type only RadioFans.CN 收音机爱 好者资料库 KAC-X40

2、 2 BLOCK DIAGRAM POWER INDI. IC2 AR AL ISO-AMP ISO-AMP IC1 LINE IN (0.2-5V) ISO-AMP ISO-AMPBR IC3,4 BL IC3,4 L R LINE IN H.P.F (40-200Hz) IC1 IC9 SENS. VOL ATT Q282,284 MUTE Q242 POWER AMP AR IC1 H.P.F (40-200Hz) Q280,283 ATT IC9 MUTE Q241 POWER AMP AL (40-200Hz) L.P.F IC4 H.P.F H.P.F IC6 (40-200Hz)

3、 (40-200Hz) IC6 SENS. VOL BOOST IC7 BASS IC10 IC10 BOOST BASS IC8 H.P.F SEL. ST/ MONO SEL SEL MONO ST/A/AB SEL L.P.F SEL. H.P.F SEL. 415-418 DET OVERLOAD AVR 15V Q1,2,15-17 B TH601-605 IC5 Q605,606 CON DC/DC POWER ON/OFF THERMAL DET LC FILTER DC-OFFSET Q611-614 DET D5,6 BATT. GND P-CON Q215-218, Q3-

4、14 FAN AVRFAN Q684,685 (INV) SP OUTPUT Q443 MUTE MUTE Q444Q482,484 Q481,483 ATT ATT POWER AMP POWER AMP SP OUTPUT BL BR (INV) 70W x 4ch / 4 100W x 4ch /2 (X08-433) COMPONENTS DESCRIPTION PREAMPLIFIER UNIT (X08-4330-10) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1HPSHPF at

5、side A 40-200Hz IC4LPFLPF at side B 40-200Hz IC6HPFHPF at side B 40-200Hz IC78BASS_BOOSTBASS_BOOST at side B 40-100Hz_0-18dB IC9X08 signal outputLch output buffer at A side, Rch phase inversion, and output buffer IC10X08 signal outputLch output buffer at B side, Rch phase inversion, and output buffe

6、r RadioFans.CN 收音机爱 好者资料库 KAC-X40 3 AUDIO UNIT (X09-8580-10) Ref. No.Application / FunctionOperation / Condition / Compatibility IC1Rch input buffer at side A and isolation Rch input signal amplification (+6dB) and noise reduction in transmission quality at side A IC2Lch input buffer at side A and i

7、solation Lch input signal amplification (+6dB) and noise reduction in transmission quality at side A IC3L/Rch input buffer at side BInput signal amplification (+6dB) at side B IC4L/Rch isolation at side BNoise reduction in input signal transmission quality at side B IC5DC/DC controlControlled by P-C

8、ON & protection circuit IC6ATTDetects inside temperature and makes the necessary ATT. Q1,15,17+15VAVROperation while P-CON is turned on. Q2,16-15VAVROperation while P-CON is turned on. Q38DC/DCControlled by IC5. Q912DC/DC driverControlled by IC5. Q13,14DC/DC delay start circuitDelays the start of DC

9、/DC when P-CON is turned on. Q201204,401404ACLASS initial stageVoltage amplification of small signal Q205210,407410ACLASS second stageVoltage amplification of small signal Q211,212,411,412Constant current circuitMakes current in ACLASS initial stage constant. Q215,216,415,416Over current limiterOper

10、ation under the over current condition Q217,218,417,418,610Over current protectionOperation under the over current condition Q220,222,223,225,423, AMP final stageCurrent amplification of small signal Q425,426,428 Q241,242,443,444AUDIO MUTEControlled by Q603. Q280,282,283,290, ATT Controlled by IC6.

11、Takes the level of -1.5dB or 3dB in response to Q481484changes in temperature (TH601-605) Q601606P-CON controlOperates when P-CON is turned on/off. Q611614DC protectionOperates when DC is detected in the SP output. Q615618POP MUTEOperation while P-CON is turned on. Q619,620LED driverOperation while

12、P-CON is turned on. Q621Power switch for thermistorOperation while P-CON is turned on. Q684,685FAN AVROperation while P-CON is turned on. ADJUSTMENT NO.ITEM ALIGNMENT METHODALIGN FORNOTE POINT VR1 (A Lch)Connect a DC 1 IDELVR2 (A Rch)voltmeter between 2.0mVAfter Power on 5minutes CURRENTVR3 (B Lch)c

13、heck land VR4 (B Rch)(Refer to PC BOARD) COMPONENTS DESCRIPTION RadioFans.CN 收音机爱 好者资料库 KAC-X40 4 ABCDE 1 2 3 4 5 6 7 1 21 2 22 C2 C12 C223 R912 C3 C5 C605 C616 C619 C7 C606 R261 R915 C261 C4 C100 C207 C208 C251 C300 C407 C408 C450C451 C681 R909 R910 C103 C104 C115 C116 C150 C201 C202 C209 C210 C216

14、 C303 C304 C315 C316 C350 C401 C402 C409 C410 C415 C416 R2 R101 R102 R198 R213 R214 R246R248 R271 R301 R302 R398 R413 R414 R445 R446 R447 R448 R470R471 R683 R684 W146 W166 W176 W120 W188W187 W154 W160 W185 W186 W131 W134W135 W132 W191 W189 W190 W192 W182 W143 W139 W133 W137 W200 W197 W196 W195 W194

15、W193 W201 W198 W203 W202 W181 W180 W153 W163 W165 W156 W199 W117 W151 W158 W157 W162 W164 W155 W152 W140 W136 W98 W124 W123 W96 W102 W105 W122 W130 W104W145 W109 W129 W114 W118 W126 W88 W93 W92 W94 W97 W100 W87 W169 W172 W170 W168 W149 W150 W144 W148 W103 W106 W107 W108 W112 W115 W89 W73 W82 W83 W14

16、7 W70 W63 W76 W111 W167 W175 W174 W161 W138 W184 W171 W183 W173 W177 W110 W179 W60 W65 W64 W75 W72 W86 W80 W90 W74 W79 W69 W67 W121 W84 W85 W81 W71 W66 W68 W119 W116 W95 W101 W91 W62 W59 W61 W33 W35 W78 W77 W113 W242 W244 W243 W245 W34 W204 W2 W2 W205 W212 R260 C260 IDEL ARIDEL BL IDEL BR Q1 QQ423 Q

17、424 Q2 Q222Q425 Q426 D152D251 D457 D458 J1 D210 D211 J8 P1 D4 D11 D204 D206 D260 D261 D403 D404 D405 D408 D462 D463 Q201 Q202 Q203 Q204 Q205 Q206 Q207 Q208 Q209 Q210 Q216 Q218 Q401 Q402 Q403 Q404 Q405 Q406 Q407 Q408 Q409 Q410 Q415 Q416 Q417 Q418 Q684 Q685 Q17 CN1 AUDIO UNIT X09-8580-10 A/2 (J76-0344

18、-11) D101 D207 D301 D102 D302 Q610 D107 D3 D911 Q16 Q241 Q242 Q280 Q282 Q283 Q284 Q443 Q444 Q481 Q482 Q483 Q484 Q611 Q612 Q613 Q620 D100 D209 D229 D253 D254 D255 D295 D296 D300 D430 D459 D460 D461 D495 D496 D618 D619 Q15 Q211 Q212 Q411 Q412 Q619 Q219 D620 IC1 IC2 IC3 IC4 R113 R242 R257 R313 R441 R44

19、2 R660 R914 R917 C721 R215 R216 R217 R218 R416 R417 R418 R453 R114 R314 R659 R916 C722 R629 C607 C610 R633 R223R224 R423R424 C33 C34 C337 C338 C129 C130 C133 C134 R123 R124 C229 C230 C333 C334 R323 R324 C124 C324 C107 C126 C156 C203 C204 C263C264 C326 C356 C403 C404 C463C464 C609 C682 C906 C907 C908

20、 C909 R196 R203 R204 R225 R227 R228 R243 R244 R396 R403 R404 R427 R428 R443 R444 R635 R636 R721 R722 R913 R986 TH604 TH605 W704 C101C102 C105 C106 C113 C114 C117 C118 C127 C128 C131 C132 C205 C206 C211 C212 C213 C214 C217 C218 C220 C222 C225 C226 C227 C228 C301C302 C305 C306 C313 C314 C317 C318 C331

21、 C332 C405 C406 C411 C412 C413 C414 C417 C418 C419 C420 C421 C422 C423 C424 C910 C911 C912 C913 C929 C930 R1 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R125 R126 W751 W752 R170 R172 R194 R195 R201 R205R206 R207 R208 R209 R210 R211R212 R219R220R221 R222 R230 R232 R236 R238 R240 R241 R250 R252

22、W753 W754 R255R256 R262 R263 R264 R265 R266 R267 R268 R273 R274 R280 R282 R284 R285 R287 R289 R290 R291 R292 R303R304 R305 R306 R307 R308 R309 R310 R311 R312 R325 R326 R370 R372 R394 R395 R401 R405R406 R407 R408 R409 R410 R411R412 R419R420R422 R425 R429 R430 R431 R432 R433 R434 R435 R436 R437 R438 R

23、439 R440 R449 R450 R451R452 R454 R455 R457 R458 R459 R463 R464 R465 R466 R467 R468 R473 R474 R480 R481 R484 R486 R488 R489 R490 R491 R492 R601 R602 R617 R620 R621 R622 R623 R625 R627 R634 R637 R646 R647 R650 R656 R681 R682 R685 R911 R918 W682 W683 W692 W693 W672 W673 W691 W687 W688 W698 W690 W699 W6

24、85 W675 W694 W703 W755 W702 W701 W677 W679 W678 W680 W676 W695 W697 W696 W700 W684 W686 W667 W666 W665W668 W670 W671 W R253 R254 R618 14 58 41 58 41 85 41 14 85 BEBEBEBEBEBEBEBEBEBEBEBE BE BE BE BE BE BE BE BE BE BE EB EB B BEBEBE EB EB EB EB EB EB EB EB SD G EBEB EB EB EB BE BE BE BE BE BE BE BE BE

25、 B AB E K B CE AB E K B CE AB E K B CE BK ECB E A B E E BK ECB E A E BE BE BE BE BE VR3 VR4 VR2 DC voltmeter A Rch 2.0mV DC voltmeter B Lch2.0mV DC voltmeter B Rch 2.0mV PC BOARD (FOIL SIDE VIEW) KAC-X40 5 JIHGF 1 2 3 4 5 6 7 RED C6 R608 C1 C8C9 C10 C11 C14 C16 C17 C250 C601 C602 C603 C608 C611 L3 C

26、13 C15 C32 C215 C604 R5 R6 R32 R245R246 R247 R270 R603 R615 R616 W5 W2 W501 W503 W504 W25 W24 W23 W22 W21 W10 W11 W12 W13 W8 W7 W14 W15 W16 W17 W1 W4 W6 W3 W58 W44 W42 W45 W51 W18 W19 W20 W63 W49 W50 W60 W46 W47 W36 W54 W67 W41 W48 W52 W66 W62 W59 W61 W33 W26 W56 W28 W29 W31 W30 W27 W40 W38 W57 W43

27、W39 W37 W55 W53 L1 L2 W32 W502 W206 W207 W208 W214 W209 W213 W211 W210 W227 W228 W229 W230 W231 W232 W234 W235 W233 W241 W240 W239 W237 W236 W238 W226 W223 W222W220 W221W219 W218 W225 W224 W216 W215 W217 IDEL AL R D5 Q220 Q223 D6 Q225 D1 D2 J3 D8 D616 P1 Q3 Q4 Q5 Q6 Q7 Q8 D7 D9 D203 D205 D602 D603 D

28、605 D609 D613 Q215 Q217 Q601 Q604 CN3 WH1 X09 B/2 D614 Q614 D600 D604 Q10Q11 Q602 Q605 Q606 Q613 D10 D255 D606 D607 D617 Q9Q12 Q13Q14 Q603 Q615 Q616 Q617 Q618 Q621 IC6 IC5 R3 R609 R668 R4 R666 R669 C607 C610 R628 R633 C600 13 C609 C617 C618 C620 R7 R8 R13 R14 R16 R20 R22 R24 R606 R613 R614 R635 R636

29、 R644 R649 R661 R662 R663 R664 R670 TH601 TH602 TH603 C219 C221 R9 R10 R11 R12 R15 R17 R18 R19 R21 R23 R25 R33 R34 R35 R36 R37 R38 R229 R231 R233 R234 R235 R237 R239 R249 R251 R259 R604 R605 R607 R610 R611R612 R622 R624 R632 R634 R637 R642 R643 R648 R651 R653 R665 R667 R671 R672 R673 R674 R675 R676

30、W652W653 W651 W657 W659 W661W601 W654 W660 W650 W656 W664 W655 W658 W662 W602 W603 W663 W705 41 85 81 12 169 BEBE BE BE EB BE BE BE B BEBE BE BE BE BE BE BE BE AB E K B CE BK ECB E A BK ECB E A SDGSDGSDGSDGSDGSDG BE BE BE VR2 VR1 DC voltmeter A Lch2.0mV er mV Refer to the schematic diagram for the v

31、alues of resistors and capacitors. X09-8580-10 Ref. No.Address IC16C IC26C IC36B IC46B IC55I IC64G Q12D Q22D Q33H Q44H Q53H Q64H Q74H Q85H Q94I Q104I Q114I Q124I Q134I Q144I Q152D Q162D Q173D Q2014D Q2024D Q2034D Q2044D Q2053D Q2063D Q2074D Q2084D Q2093D Q2103D Q2114D Q2124D Q2152G Q2162E Q2172G Q21

32、82E Q2202F Q2222E Q2233G Q2252F Q2415D Q2425C Q2805D Q2825C Q2835D Ref. No.Address Q2845C Q4014C Q4024C Q4034C Q4044C Q4053C Q4063C Q4074C Q4084C Q4093C Q4103C Q4114C Q4124C Q4152B Q4164A Q4172B Q4184A Q4232C Q4244B Q4252C Q4264B Q4435C Q4445C Q4815C Q4825C Q4835C Q4845B Q6015F Q6025F Q6035F Q6045G

33、Q6056F Q6066F Q6103B Q6114E Q6124E Q6134E Q6144F Q6154F Q6165F Q6174F Q6184F Q6195D Q6206D Q6215F Q6846D Q6856D KAC-X40 6 KLMNO 1 2 3 4 5 6 7 Refer to the schematic diagram for the values of resistors and capacitors. IC1 IC4IC6IC7IC8IC9 IC10 PREAMPLIFIER UNIT X08-4330-10 (J76-0352-12) 1 1 3 1 2 85 4

34、 C26 C25 R123 R125 R253 R255 R52R51 C23 C19 R243 R244 C11 R117 R118C10 C27 C28 C35 C36 R101 R102 R111 R112 R119 C9 R4 R109 R110 C20 C301 C304 R227 R228 R310 C29 C30 C31 C32 C33 C34 C37 C38 C41 C42 C43 C44 C45 C46 C47 C48 C101 C102 C103 C104 C108 C113 C114 C207 C208 C209 C210 C215 C216 C219 C220C228

35、C233 C234 C303 C306 R1 R3 R11 R12 R13 R14 R15 W1 W2 W3 W4 R21 R22 R23 R24 R25 R26 R27 R29 R30 R103 R104 R107 R108 R113 R115 R116 R121 R122 R201 R202 R203 R204 R219 R220 R221 R222 R225 R226 R229 R230 R231 R232 R233 R234 R235R236 R237 R238 R239 R240 R245 R246 R247 R248 R249 R250 R251 R301 R303 R304 R3

36、05 R306 R308 R30 41 58 41 58 41 58 41 58 41 12 58 41 58 40Hz200Hz STMONO MONOST 121 222 40Hz ABA ONOFF HPFOFFLPF 200mV5V40Hz200Hz0dB18dB5V200mV200Hz100Hz40Hz RED C1 C3 C5 C7 C13 C15 C2 C4 C6 C8 C14 C16 C17 C18 C105 C106 C109 C110 C211 C212 C213 C214 C217 C218 C221 C222 C251 C252 C307 LPFHPFSENSBASS

37、FREQ.BASS BOST Bch AchBch Ach SENSHPF OP SELHPFINPUT SELFIL SELOP SEL VR2VR1VR8VR3VR5VR6VR4 D1 CN1 CN2 CN3 CN5 S1 S2 S6 S3 S4 CN4 PC BOARD (COMPONENT SIDE VIEW) X08-4330-10 Ref. No.Address IC15N IC44L IC63L IC75L IC86L IC96L IC103L KAC-X40 7 TSRQP 1 2 3 4 5 6 7 PREAMPLIFIER UNIT X08-4330-10 (J76-035

38、2-12) TP1 TP19 TP14 TP15 TP20 TP2 TP3 TP4 TP5 TP6 TP7 TP8 TP9 TP10 TP11 TP12 TP13 TP16 TP17 TP18 TP21 TP22 TP26 TP55 TP30 TP46 TP50 TP52 TP53 TP54 TP56 TP57 TP58 TP59 TP60 TP61 TP64 TP65 TP66 TP67 TP68 TP69 TP70 TP71 TP72 TP73 TP74 TP75 TP76 TP77 TP78 TP79 TP80 TP81 TP82 TP83 TP84 TP85 TP98 TP99 TP1

39、00 TP103 TP105 TP106 TP111 TP112 TP113TP114 TP115TP116 TP117 TP118 TP119 TP120 TP123 TP124 TP125 TP126 TP135 TP136 TP139 TP141TP143 TP145 TP147 Refer to the schematic diagram for the values of resistors and capacitors. PC BOARD (FOIL SIDE VIEW) KAC-X40 8 ABCDE 1 2 3 4 5 6 7 D101 D107 D300 D102 D100

40、J1 RL BRBL ARAL LINE OUT LINE IN LINE IN IC2 (1/2) (2/2) IC1 IC1 (1/2) (2/2) IC2 Q241 Q242 D296 D295 D229 Q284 Q283Q280 Q282 Q481 Q482 D496 D495 Q484 Q483 D430 Q444 Q443 D302D301 (2/2) IC4 (1/2) IC3 IC3 (1/2) IC4 (2/2) Ach Bch CN1 A/2- CN1 2/2 X08- ISO AMP ATTMUTE TP68 TP63 TP70 TP25 TP73 TP24 TP175

41、TP176 TP178 TP66 TP75 TP28 TP74 TP64 TP69 TP65 TP27 TP71 TP23 TP72 TP26 300 R198 300 R398 22u50 C150 22u50 C350 1000P C126 1000P C326 4.7K R196 4.7K R396 470P C156 470P C356 0.01 C124 100 R721 7P C721 7P C722 100 R722 0.01 C324 0.01 C107 8 2 4 1 3 8 4 6 5 7 2 3 1 5 6 7 10u50 C103 470P C101 10K R103

42、10K R105 10K R106 470P C102 10K R104 10u50 C104 1.5K R170 R107 12K 10K R109 15P C105 15P C106 1.5K R172 10K R110 C100 7P R909 1K 100P C133C134 R108 12K R123 10K 15P C113 0.01 C33 7P C127 10u50 C115 R125 10K C131 100P 7P C129 R111 10K 7P C130 0.01 C34 7P C128 10u50 C116 15P C114 C132 100P R126 10K R1

43、24 10K 100P 10K R112 R194 4.7K R195 4.7K2.2 R114 1K R102 1K R101 2.2 R113 TP136 R265 10K R282 10K R291 10K R266 10K R284 10K R292 10K R244 100 ATT2 MUTE C226 7P TP135 TP137 ATT1 R290 12K R289 12K 20K R287 TP134 R285 20K TP133 R280 3K 10 C C R227R228 R243 100 C225 7P R201 3K C C 10 TP132 TP130 10K C4

44、24 7P100 R444 R491 10K ATT2 ATT1 R481 R490 10K R492 12K10K R484 C423R443 1007P 12K R489 R486 R428 R480 3K 10 C C TP131 MUTE R466 20K R488 TP129 R465 10K 10K R427 TP128 20K 3K R401 C 10 C +15V R307 12K R308 12K 6 10u50 C304 C306 1.5K R372 15P 5 TP85 470P R304 10K 470P R303 10K R306 TP84 10K R305 TP78

45、 10K C303 10u50 C305 R370 1.5K 15P 3 2 TP76 7 C314 R324 10K 22u50 R310 TP87 7 10K TP86 15P 5 4 R314 2.2 R325 10K R326 10K C331 100P TP80 C332 100P 15P C313 R323 10K 100P C333 R910 1K C300 7P R311 10K C334 R312 10K 100P TP82 6 2 R309 TP77 1 10K TP79 3 TP83 C338 C230 7P TP81 C229 7P C337 0.01 7P C316

46、C228 0.01 R313 2.2 1 8 C315 22u50 C227 7P R302 TP120 1K R301 TP121 TP122 C302C301 1K 43K43K43K43K 21 D-GND 8 A-ISO-GND-1 TP2 1 TP1 TP3 432765 TP4 TP5 ISO-BL B-ISO-GND-1 B-ISO-GND-1 B-ISO-GND-1 A-ISO-GND-1 ISO-AR ISO-BR TP11 TP8 11109 TP7 TP6 12 TP9 14 TP10 131816 1715 TP13 TP14 TP12 TP15 TP17 TP16 2

47、019 ISO-AL A-ISO-GND-1 AMP-BL B-ISO-GND-2 AMP-AR AMP-BR -15V +15V AMP-AL A-ISO-GND-2 LOGO-LED FAN 22 +15V +15V +15V +15V -15V +15V+15V -15V-15V -15V FAN+B -15V R394 4.7K R395 4.7K 8 4 -15V + + + + + + + + + + AUDIO UNIT (X09-8580-10) (A/2) A X09-8580-10 (1/3) KAC-X40 9 JIHGF Q618 Q614 Q610 Q1 Q616 Q

48、613 Q16 Q611 Q2 Q617 Q15 Q612 D61 D61 Q17 D4 D11 D3 D6 D5 D210 D211 IC6 (1/2) (2/2) IC6 D60 Q615 D616 D613 D614 Q212 Q201 Q241 Q242 Q202 D209 D207 D205D203 Q217 Q207Q205 Q204 D251 D254 Q209 D260 Q211 Q203 D253 Q215 D255 Q225 Q223 Q216 Q218 Q206Q208 D152 D261 Q210 D206D204 Q222 Q220 Q410 Q408 Q402 Q4

49、12 Q404 D463 D457 D458 Q406 D404 Q418 Q416 D460 D408 Q424 Q426 D461 Q409 Q407 Q401 Q444 Q443 Q403 Q405 Q411 D462 D459 D405 Q415 Q417 D403 Q425 Q423 POP NOISE-MUTE MAIN AMP MUTE TP165 TP123 TP59 TP150 TP58 TP60 TP153 TP149 TP145 TP162 TP174 TP187 TP163 TP57 TP173 TP161 TP151 TP164 TP154 47u25 C2 10u50 C12 47u25 C3 10K R917 3.3K R911 18K R914 0.01 C929 820 R1 10K R913 10K R916 100 R918 10K R2 0.01 C930 22 R915 22 R912 10u50 C5 4700u42 C6C7 4700u42 27K R3 27K R4 3.3K R647 3.3K R646 10K R627 10K R650 220K R653 220K R643 10u50 C605 10u50 C619 R624 4.7K R642 4.7K R648 83 1 2 7 4 6 5 3.3K 1