Kenwood-KACX-522-Service-Manual 电路图 维修手册.pdf

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1、Heat sink (F01-3533-01) Screw washer (N07-0003-08) Screw washer (N09-4214-08) Fuse (30A) (F52-0015-05) Cover (F07-1177-02) Screw & Wrench key set (N99-1770-15) Screw set (N99-1577-15) Accessory (W01-1606-05) Dressing panel (A21-6505-02) VOLTFAN CURRTEMP MENU 0 1 2 3 4 5 6 7 8 9 POWER IN RESETLINE IN

2、LINE OUTREMOTETO H/UID NUMBER 30 30 FUSE(30A2) Panel (A64-3924-02) 2006-1 PRINTED IN JAPAN B53-0374-00 (N) 589 POWER AMPLIFIER KAC-X522 SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 KAC-X522 2 BLOCK DIAGRAM (X09-5760-11) (X08-4150-11) I.S.AI.F.S L.P.F H.P.F LCD DRIVER LCD V PROT. TEMP PROT. IC1,10IC1 IC3,4

3、,6 IC5 ED1IC7 MUTE POWER AMP Q101,102 CONT. AMP u-COM 5V AVR FAN AVRFAN -15V AVR +15V AVR DC/DC CONVERTER SW 5V AVR Q69 Q66 Q356,358 IC2Q61 Q62 IC6 P-CONT GND BAT to POWER AMP to H/U CURRENT PROT DC PROT PREAMPLIFIER UNIT (X08-4150-11) Ref. NoApplication / FunctionOperation / Condition / Compatibili

4、ty IC1Infrasonic filterControlled by microprocessor IC3Tone and volume variable IC46dB voltage amplification IC5 HPF LPF IC6 Lch : 6dB voltage amplification Rch : Signal 180 reverse and 6dB voltage amplification IC7LCD driverControlled by microprocessor AUDIO UNIT (X09-5760-11) Ref. NoApplication /

5、FunctionOperation / Condition / Compatibility IC1Buffer IC2DC/DC converter IC3AMP communication buffer COMPONENTS DESCRIPTION RadioFans.CN 收音机爱 好者资料库 KAC-X522 3 Ref. NoApplication / FunctionOperation / Condition / Compatibility IC5Head unit communication buffer IC6Microprocessor IC7Reset IC IC8E2PRO

6、M IC9Current detection IC10Isolation amplifier Q505V AVR Q5154DC/DC output driver Q5560DC/DC Q61+15V AVR Q62,63-15V AVR Q64,65DC/DC converter (IC2) ON/OFFControlled by microprocessor Q66,685V AVR Q695V AVR ON/OFF Q70,71Power supply detection Q81+15V AVR Q91,92When P-CON is OFF, DC/DC driver stop spe

7、edy Q97AMP communication stability power supply Q101,102Mute Q103112A-class first stage amplifier Q113118A-class 2nd stage amplifier Q119,120Final temperature compensation Q121124Amplifier current detection Q125132Final driver Q133140Final Q141Mute control Q142145Amplifier limiter Q146,147Amplifier

8、current detection Q148,149DC detection Q301307Head unit communication output driver Q313Head unit communication output driver Q314Head unit communication ON/OFF Q341344Head unit communication input driver Q346Head unit communication output driver Q347349AMP and head unit communication ON/OFF control

9、 Q351,352BATT voltage output Q353358Fan stability power supply Q403LCD backlight LED control Q404LED control COMPONENTS DESCRIPTION RadioFans.CN 收音机爱 好者资料库 KAC-X522 4 AMP SCLLX REQ M LX REQ S LX DATA M LX DATA S LX CLK LX RST HU BU AD-I AD-V TEMP1 TEMP2 TEMP3 TEMP4 TEMP5 TEMP6 COMM-SW D-PWER POWER-O

10、N 5VSW V DOWN PCON LX CON L DATA L L DATA A L CLK L CE FAN1 FAN2 AMP SDA AUDIO SCL AUDIO SDA AUDIO MUTE E2P SCL E2P SDA LCD-ILL WHITE-LED MUTE1 MUTE2 DIP-SW1 DIP-SW2 DIP-SW3 DIP-SW4 MODEL1 MODEL2 DC-DET D-CUR AB-CUR ATT1 ATT2 ATT3 AMP -com Audio control AMP communication I/FLX BUS I/F Display data m

11、onitor Power supply control LCD driver I/F Fan control Destination, AMP ID Protection control Illumination control Mute control E2PROM I2C communication MICROPROCESSOR (X09 : IC6) Block Diagram Terminal Function Pin No.Pin NameI/OFunctionProcessing Operation Description 13TEMP4TEMP6ITemperature dete

12、ction 46 4AVSS-GND 5L CEOCE output to LCD driverH : LCD driver CE 6LX REQ SOData transmit request to head unitH : OFF, L : ON 7AVREF1-DA reference voltage 8L DATA LIData input from LCD driver 9L DATA AOData output to LCD driver 10L CLKOCLK output to LCD driver 11LX DATA MIData input from head unit 1

13、2LX DATA SOData output to head unit 13LX CLKICLK input from head unit 14LX BUILX BUS communication, head unit connect detectionH : Not connect (Except master amplifier), L : Connect 15NCONot used 16SDA AMPI/OData input/output AMP communication 17NC-Not used MICROCOMPUTERS TERMINAL DESCRIPTION KAC-X5

14、22 5 Pin No.Pin NameI/OFunctionProcessing Operation Description 18SCL AMPI/OCLK input/output AMP communication 19AUDIO SCLI/OCLK input/output with audio chip 20AUDIO SDAI/OData input/output with audio chip 21AUDIO MUTEOMute output to audio chipH : Mute OFF, L : Mute ON 22E2P SCLI/OCLK input/output w

15、ith E2PROM 23E2P SDAI/OData input/output with E2PROM 24NC-Not used 2528DIP-SW1DIP-SW4IAMP address setting 29MODEL1IModel setting 1 30MODEL2IModel setting 2 31,32NC-Not used 33VSS1-GND 3437NC-Not used 38LCD-ILLOLCD backlight switchH : ON, L : OFF 39WHITE-LEDOTriangle illumination switchH : ON, L : OF

16、F 40NC-Not used 4143ATT1ATT3OOutput attenuate due to rise in temperature 13H : Attenuate, L : Not attenuate 44,45NC-Not used 46COMM-SWOCommunication IC power switchH : ON, L : OFF 4750NC-Not used 51D-PWEROD class amplifier power supply controlH : ON, L : OFF (2ch/4ch L fixed) 52DC-DETISpeaker output

17、 DC voltage detectionH : Normal, L : Abnormal 53NC-Not used 54POWER-ONOAmplifier power supply controlH : ON (D/AB class), L : OFF 555VSWO5VSWH : OFF, L : ON 56MUTE1OAmplifier section input stage mute controlH : OFF, L : ON 57MUTE2ODriver stage pop-noise mute controlH : OFF, L : ON 58FAN1OFan rotatio

18、n controlH : Operate, L : Stop 59FAN2OFan speed controlH : Low speed, L : High speed 60RESET-Hard resetH : Normal, L : Reset 61PCONIAmplifier power controlH : OFF, L : ON 62LX CONILX-BUS communication controlH : OFF, L : ON 63LX REQ MIData receive request from head unitH : ON, L : OFF 64NC-Not used

19、65V DOWNIMomentary power down detectionH : ON (Power down detection), L : OFF (L fixed) 66NC-Not used 67VSS0-GND 68VD1-VDD 69X2-Main clock input 1 70X1-Main clock input 2 MICROCOMPUTERS TERMINAL DESCRIPTION KAC-X522 6 Logic Table 1) Destination The destination in AMP does not mean the sales regions

20、but specific models. The following are the models. When reset is released, it is checked only once. Model nameMODEL1 (pin 29)MODEL2 (pin 30) KAC-X812DLowLow KAC-X522LowHigh KAC-X542HighHigh Pin No.Pin NameI/OFunctionProcessing Operation Description 71TEST-Flash ROM writing 72XT2-Not used 73XT1-Not u

21、sed 74VDD0-VDD 75AVDD-VDD 76AD-IIFirst current detection (for display) 77AD-VIBU voltage detection (for display) 7880TEMP1TEMP3ITemperature detection 13 MICROCOMPUTERS TERMINAL DESCRIPTION 2) AMP ID AMP ID is checked only once at the time reset is released or when the microcomputer is released from

22、the low consump- tion mode. When setting AMP ID to 8 or 9, remote control is impossible. AMP ID DIP-SW1DIP-SW2DIP-SW3DIP-SW4 (pin 25)(pin 26)(pin 27)(pin 28) 0HighHighHighHigh 1LowHighHighHigh 2HighLowHighHigh 3LowLowHighHigh 4HighHighLowHigh 5LowHighLowHigh 6HighLowLowHigh 7LowLowLowHigh 8HighHighH

23、ighLow 9LowHighHighLow 3) Fan speed OperationFAN1 (pin 58)FAN2 (pin 59) StopLowHigh/Low Low speedHighHigh High speedHighLow KAC-X522 7 CIRCUIT DESCRIPTION AD-I D309 (2/2) IC9 (1/2) IC9 AMP RECT MPU AD-PORT OUTPUT VOLTAGE DETECTION LEVEL 10u35 270 1K 10K 7 5 6 15K 0.010.01 10K 1 8 13K 470 3 2 47 L5 4

24、 + IC3 J4D302 D301 to OTHER AMP RECEIVE TRANSMISSON to MPU TRANSMISSON RECEIVE BOTH DIRECTION BUFFER 42 3 1 4.3K 4.3K 270 270 9 5 7 10 11 8 6 10u25 10K 1.8K 1.8K VCCSX GND RX TX TY SY RY 6 7 8 5 3 2 1 4 CLK DATA No.ItemAlignment PointMethodAlign ForNoteFig. Connect a DC voltmeter between 1IDEL CURRE

25、NT VR1 (Lch)the following emitter resistors. 2.5mV Over 2 minutesPC BOARD VR2 (Rch)R167 (L)aging is required.on page 10. R168 (R) ADJUSTMENT Current detection circuit Amplify and rectify potential differences at two points in the primary-side current circuit and send it to the AD-port of the MPU and

26、 obtain data for displaying current value. Constant current output circuit Remove troubles caused by the potential differences between the constant current output and the GND, so that the GND po- tential differences between the head unit and the AMP is not overlapped in the AMP to head unit communic

27、ation. I2C buffer Using an IC for I2C communication, be- tween-AMP communication is conducted so that there will be no trouble from GND po- tential differences. 10K 10K J3 Q301 Q303 Q305 Q307 to Head unit Head unit GND CONSTANT CURRENT AMP GND from MPU 3421 11 78 12 6 10 5 9 13 4747 REQC Head unit-G

28、ND 100K 12K 1.5K 1.5K 20K KAC-X522 8 ABCDE 1 2 3 4 5 6 7 PC BOARD (COMPONENT SIDE VIEW) R17 R55 R23 R24 C48 R78 R79 R69 R70 C49 C38 R34 R38 R18 R56 R110 R31 R29 C23 C35 C34 R45 R46 C33 R41 R42 R43R44 C28 R25 R26 C21 R27 R28 C75 C27 R32 C22 C24 R30 R72 C74 R52 R74R76 C73 R73 R77 R111 R109 R112 R107 R

29、108 R104 R115 R106 R105 R101 R102 R103 C101 C102 C103R114 C104 R11 R12 R21 R9 R19 C29 C37 C30 R20 R10 C41 C42 C43 C44 C45 C40 C13 R22 R16 R14 R15 R33 R1 R2 C3 C4 C65 R8R7 C12 R63 R64 C66 R65 C63 R39 R40 C5 R5 C64 R66 C6 R6 R3 R4 C11 C107 122 78 114 17 148 1 4 8 5 1 4 8 5 64 161 49 3348 17 32 1 10 20

30、 11 1 1 1 1 200Hz50Hz 13 5V200mV 124 50Hz 12 200Hz R13 R116 C105 C61 C9 C10 C15 C16 C17 C18 C19 C20 C25 C26 C31 C32 C39 C67C68 R117 LOW PASS STMONO OFFON ONOFF LPFOFF INPUT SENS HPF HI PASS ANP CONT I.S.F 503C 503C 103A VR1VR3 VR2 CN1 D1 D2 S1 S2 S3 S4 CN2 ED1 S7 S8 S9 WH2 IC6 IC5 IC7 IC4 IC3 IC1 PR

31、EAMPLIFIER UNIT X08-4150-11 (J76-0010-12) Refer to the schematic diagram for the values of resistors and capacitors. X08-4150-11 Ref. No.Address IC12D IC36D IC46D IC56C IC66D IC74B KAC-X522 9 JIHGF 1 2 3 4 5 6 7 PC BOARD (FOIL SIDE VIEW) TP183 TP42 TP35 TP5 TP4 TP15 TP8 TP19 TP1 TP2 TP3 TP6 TP7 TP9

32、TP10 TP11 TP12 TP13 TP14 TP16 TP17 TP18 TP20 TP21 TP22 TP23 TP25 TP27 TP28 TP29 TP30 TP31 TP32 TP36 TP37 TP38 TP39 TP40 TP41 TP43 TP44 TP45 TP46 TP47 TP48 TP49 TP50 TP51 TP52 TP53 TP54 TP55 TP56 TP59 TP60 TP61 TP62 TP63 TP64 TP65 TP66 TP67 TP68 TP69 TP70 TP71 TP72 TP73 TP74 TP75 TP76 TP78 TP88 TP89

33、TP90 TP91TP92 TP93 TP94 TP98 TP99 TP100 TP101 TP102 TP103 TP104 TP105 TP106 TP107 TP108 TP109 TP110 TP111 TP112 TP113 TP114 TP115 TP116 TP117 TP118 TP119 TP120 TP121 TP122 TP123 TP124 TP125 TP126 TP127 TP128TP129 TP130 TP132 TP180 TP181 TP182 TP189 TP186 TP188 TP185 TP184 TP187 TP192 TP193 PREAMPLIF

34、IER UNIT X08-4150-11 (J76-0010-12) Refer to the schematic diagram for the values of resistors and capacitors. KAC-X522 10 KLMNO 1 2 3 4 5 6 7 PC BOARD (FOIL SIDE VIEW) BE BE BE BE BE BE BE BE BE BE BE BE BE BE BEBE BE BE BEBEBEBE BE BE BE BE BE BE BE BE BEBEBEBEBEBE BEBE BE BE BEBE BE BE BE BE BE BE

35、 BE C98 R113 R114 R174 R185 R186 R203 R348 R349 C402 L9 R402 R424 R998 R85 R350 R117 R118 R184 R442 R77 R80 R86 R241 R341 R52 R74 C71 C307 R194 R323 R328 R329 R342R344 R401 R427 R428 R429 R431 R432 R433 TH3 TH4 C142 C343 C353 C354 C406 C451 C452 C453 C23 R15 R16 R23 R76 R83 R84 R175 R177 R265R262 R2

36、71R268 R266 R263 R272 R269 R178 R179 R180 R181 R188 R196 R306 41 21 1 5 9 8 12 13 4 43 8 5 R313 R324 R352 R423 R434 W602 R477 R478R479 R480 C1 C2 C5 C6 C11 C12 C13 C14 C21 C105 C106 C125 C127 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R17 R18 R21 R22 R79 R81 R82 R101 R102 R103 R104 R249 R275 R277 R273

37、 R278 R276 R274 R247 R248 R245 R246 R250 R107 R108 R109 R110 R111 R112 R115 R116 R139 R141 R143 R147 R176 R182R183 R187 R189 R190 R191 R192 R193 R195 R303 R304 R308 R309 R311 R315 R317 R347 R351 R353 R354 R355 R356 R357 R421 R422 R425 R426 R430 R443 R444 R450 TP2 TP21 TP1 TP3 TP5 TP11 TP13 TP7 TP9 T

38、P4 TP6 TP8 TP10 TP12 TP14 TP16 TP18 TP20 TP22 R451 R452 R453 R454 R455 R458 R459 R460 R418 R419 W556 W562 W547 W563 W612 W603 W543 R305 C24 W551 W558 W542 W534 W555 W560 W570 W557 R264R261 R270R267 W548 W553 W531 W526 W522 W545 W525 W540 W538 W529 W527 W611 C460 W549 W521 W530 C461 R99 C405 W523 W53

39、2 W541 R98 W537 R97 W564 W561 W565 R100 C306 W554 W536 W605 W518 W539 C311 W604 W524 W519 W544 W550 W528 R360 W520 C303 R327 W573 TP38 TP37 TP36 TP35 TP34 TP33 TP32 TP31 TP40 TP39 W609 W614 W615 R420 W569 W606 C304 W607 W608 C302 C454 W610 C99 C100 W613 R96 R95 C97 W571 C404 W572 W617 W552 W616 W566

40、 85 14 14 5885 41 14 58 1 2 80 61 60 4140 21 20 1 43 IN LCHRCH OUT W253 W261 TP19 TP17 TP15 C18 TP24 TP27 TP26 TP23 TP25 C138 W92 C401 C109 C110 C70 C17 C19 C69 C91 C103 C104 C111 C112 C137 C139 C140 C145 C146 C301 C349 C350 C351 C352 C358 C403 R105 R106 W90 W80 W89 X1 C3 C4 C15 C16 C101C102 C107 C1

41、08 C115 C116 C117 C118 C119 C120 C121 C122 C123 C124 C129 C130 C131 C132 C133 C135 C141 R1 R2 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R129 R130 R131 R132 R133 R134 R135 R136 R137 R138 R145 R146 R151 R152 R153 Lch R154 R155 R157 R158 R159 R160 R161 R163 R165 R166R167 R168 R169 R171 R173 R20

42、1 R202 R301 R302 R318 R319 R320 R321 R322 R334 R335 R345 W404 W58 W62 W61 W60 W59 W165 W257 W254 211 222 W213 W212 W219 W78 W88 W82 W74 W161 W141 W76 W168 W145 W46 W127 W117 W137 W183 W188 W190 W176 W170 W166 W178 W223 W255W256 W83 W67 W68 W70 W53 W227 W228W229 W230 W124 W94 W52 W185 W208 W209 W207

43、W173 W152 W150 W142 W63 W151 W175 W172 W196 W129 W64 W241 W232 W128 W42 W116 W91 W111 W99 W95 W236 W133 W163 W138 W98 W104 W221 W123 W126 W130 W107 W140 W231 W156 W158 W164 W160 W143 W177 W174 W167 W153 C74 W147 W103 W119 W110 W115 W234 W131 W220 W206 W195 W189 W191 W194 W204 W205 W203 W202 W201 W93

44、 W260 W226 W199 W192 W215 W218 W181 W258 W233 W235 W237 W193 W243 W248 W246 W244 W238W239 W247 W252 W251 W224 W197 W214 W159 W157 W198 W216 W154 W146 W155 W171 W250 W249 W41 W210W113W148 W211 W149 W179 Lch Rch W180 W187 W162 W135 W136 W72W112 W56W77 W54 W71 W101 W182 W184 W186 W105 W106 W242 W57 W65

45、 W55 W66 W73 W108 W125 W122 W118 W114 W109 W102 W85 W245 W121 W132 W84 W69 W97 W86 W75 W87 W100W96 W79 W81 W217 W222 W43 W200 W169 W225 C76 EB BE EB BE EB BE EB BE BE BE BE BE BE EB EB BE EB BE BE EB EB EBEBEBEBEBEB BE EB BE BE EB BE EB BE D3 Q349 D131 D258 D259 D260 Q97 Q351 Q354 Q357 Q69 Q352 D132

46、 D301 D303 D312 D351 D353 D354 Q50 Q68 Q70 Q71 Q101 Q247 Q249 Q245 Q250 Q248 Q102 Q246 Q149 Q348 Q353 Q355 D1 D2 D55 D70 D103 D255 D256 D257 D133 D302 D304D305 D315 D341 D342 D343 D344 D352 Q111 Q112 Q141 Q261 Q262 Q263 Q142 Q143 Q144 Q145 Q346 Q347 D317 D318 D319 D311 Q356Q358 D108 Q66 Q147 D71 D10

47、5 D106 D107 D109 D110 D111 D112 D113 D115 D117 D127 D128 D129 D130 J1 J3 J4 Q103Q104Q105 Q106 Q107 Q108 Q109 Q110 Q113 Q114 Q115 Q116 Q117 Q118 Q119 Q121 Q123 Q125 Q126 Q127 Q128 Q129 Q131 Q133 Q134Q135Q136Q137 Q139 Q146 Q403 Q404 D54 S1 CN10 S2 IC1IC10 IC6 IC7 IC5 IC8 IC3 AUDIO UNIT X09-5760-11 A/2

48、 (J76-0013-11) DC voltmeter 2.5mV DC voltmeter 2.5mV VR2 VR1 Refer to the schematic diagram for the values of resistors and capacitors. KAC-X522 11 TSRQP 1 2 3 4 5 6 7 BE BE BE BE BE BE BE BEBE BE C66 C310 R70 R71 C65 C309 R69 R93 R438 TH1 TH2 C53 C62 R53 R54 R55 R56 R61 R62 R199 R316 C313 C314 R330

49、 R336 R337 R338 R339 R439 R475 R476 C251 C252 C126 C128 R51 R57 R58 R59 R60 R67 R72 R92 R140 R142 R144 R148 R187 R190 R197 R198 R200 R310 R312 R314 P-CON GNDBATT R331 R332 R333 R440 R441 R326 W503 W511 W502 W504 W510 W508 W507W506 W515 W535 W505 W501 W509 W513 W514 W518 W516 W517 C458 C459 W567 W568 W601 R325 18 916 41 85 PATTNP-C N W408 W407 W406 W47 W48 W49 C64 C56 L4 C63 C51 C52 C61 C67 C68 C90 C140 C143 C145 C308 L5 R88 R89 R90 R91 C54 C72 C73 C89 C134 C136 R65R66 R73 R156 R162 R164 R170 R172 W401 W402 W14 W1 W58 W62 W8 W18 W2 W3 W405 W6 W7 W21 W9 W15 W29 W30 W45 W44 W3