Kenwood-KACPS-621-Service-Manual 电路图 维修手册.pdf

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1、 2004-2 PRINTED IN JAPAN B53-0140-00 (N) 2704 POWER AMPLIFIER KAC-PS621 KAC-X621 SERVICE MANUAL VOLTFAN CURRTEMP MENU 0 1 2 3 4 5 6 7 8 9 POWER IN RESETLINE INLINE OUTREMOTETO H/UID NUMBER 25 25 25 Screw set (N99-1752-05) Screw set (N99-1577-15) Heat sink (F01-1752-01) Accessory (W01-1606-05) Cover

2、(F07-1140-12): KAC-X621 (F07-1141-12): KAC-PS621 Screw (N07-0003-08) Screw (N09-4214-08) Fuse (25A) (F52-0014-05) RadioFans.CN 收音机爱 好者资料库 KAC-PS621/X621 2 BLOCK DIAGRAM PREAMPLIFIER UNIT (X08-4150-10) Ref. NoApplication / FunctionOperation / Condition / Compatibility IC1Infrasonic filter IC3Tone and

3、 volume variableControlled by microprocessor 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 (X09-5770-10) Ref. NoApplication / FunctionOperation / Condition / Com

4、patibility IC1Buffer IC2DC/DC converter IC3AMP communication buffer COMPONENTS DESCRIPTION IC1,10 ISO AMP ISO AMPISF ISFHPF HPFBUFFER BUFFER LPF CONTROL MUTE MUTE AMP CONTROL AMP POWER AMP POWER AMP IC1IC5IC4,6 IC3 Q101 Q107-135 OUT IN OUT IN L R OPERATIONIFSFILTERSENSITIVITYAMP CONT OUT-R OUT-L H/U

5、 COM AMP COM IC6 O.C. PROTE. D.C. PROTE. T.M. PROTE. O.V. PROTE. 5V AVR +15V AVR -15V AVR BATT GND P-CON Q66 u-COM Q61 Q62 FAN DISP. MO/STON/OFFHPF/OFF/LPF5V-0.2VON/OFF 6dB12dB24dB DC/DC CONV. RadioFans.CN 收音机爱 好者资料库 KAC-PS621/X621 3 Ref. NoApplication / FunctionOperation / Condition / Compatibility

6、 IC5H/U communication buffer IC6Microprocessor IC7Reset IC IC9Current detection IC10Isolation amplifier Q505V AVR Q5154DC/DC output driver Q5560DC/DC drive (Final) Q61+15V AVR Q62,63-15V AVR Q64,65DC/DC converter (IC2) ON/OFFControlled by microprocessor Q66,685V AVR Q695V AVR ON/OFF Q70,71P-CON cont

7、rol Q81+15V AVR (Constant current) Q91,92DC/DC control Q97AMP communication stability power supply Q101,102Mute Q103112A class first stage amplifier Q113118A class 2nd stage amplifier Q119,120Final temperature compensation Q121124Amplifier current detection (Current limiter) Q125132Final driver Q133

8、140Final Q141Mute control Q142145Shock noise prevention Q146,147AMP current detection Q148,149DC detection Q249,250,263ATT controlSynchronized with temperature detection Q301307H/U communication output driver Q310H/U communication ON/OFF Q313H/U communication output driver Q341344H/U communication i

9、nput driver Q346H/U communication output driver Q347349AMP and H/U communication ON/OFF control Q351,352BATT voltage output Q353358Fan stability power supply Q403LCD backlight LED control Q404LED control Q601,602DC/DC drive (Final) COMPONENTS DESCRIPTION RadioFans.CN 收音机爱 好者资料库 KAC-PS621/X621 4 AMP_

10、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-ON 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-S

11、W3 DIP-SW4 MODEL1 MODEL2 DC-DET D-CUR AB-CUR ATT1 ATT2 ATT3 AMP -com 784224YGC117 Audio control AMP communication I/FLX BUS I/F Display data monitor Power supply control LCD driver I/F Fan control Destination, AMP ID Protection control Illumination control Mute control E2PROM I2C communication MICRO

12、PROCESSOR : 784224YGC117 (X09 : IC6) Block Digram Terminal Function Pin No.Pin NameI/OFunctionProcessing Operation Description 13TEMP4TEMP6ITemperature detection 46 4AVSS-GND 5L_CEOCE output to LCD driverH : LCD driver CE 6LX_REQ_SOData transmit request to H/UH : OFF, L : ON 7AVREF1-DA reference vol

13、tage 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 H/U 12LX_DATA_SOData output to H/U 13LX_CLKICLK input from H/U 14LX_BUILX BUS communication, H/U connect detectionH : Not connect (Except master amplifier), L :

14、Connect 15NCONot used 16SDA_AMPI/OData input/output AMP communication 17NCONot used MICROCOMPUTERS TERMINAL DESCRIPTION KAC-PS621/X621 5 Pin No.Pin NameI/OFunctionProcessing Operation Description 18SCL_AMPI/OCLK input/output AMP communication 19AUDIO_SCLI/OCLK input/output with audio chip 20AUDIO_SD

15、AI/OData input/output with audio chip 21AUDIO_MUTEOMute output to audio chipH : Mute OFF, L : Mute ON 22E2P_SCLI/OCLK input/output with E2PROM 23E2P_SDAI/OData input/output with E2PROM 24NCONot used 2528DIP-SW1DIP-SW4IAMP address setting 29MODEL1IModel setting 1 30MODEL2IModel setting 2 31,32NCONot

16、used 33VSS1-GND 3437NCONot used 38LCD-ILLOLCD backlight switchH : ON, L : OFF 39WHITE-LEDOTriangle illumination switchH : ON, L : OFF 40NCONot used 4143ATT1ATT3OOutput attenuate due to rise in temperature 13H : Attenuate, L : Not attenuate 44,45NCONot used 46COMM-SWOCommunication IC power switchH :

17、ON, L : OFF 4750NCONot used 51D-PWEROD class amplifier power supply controlH : ON, L : OFF (2ch/4ch L fixed) 52DC-DETISpeaker output DC voltage detectionH : Normal, L : Abnormal 53NCONot used 54POWER-ONOAmplifier power supply controlH : ON (D/AB class), L : OFF 555VSWO5VSWH : OFF, L : ON 56MUTE1OAmp

18、lifier section input stage mute controlH : OFF, L : ON 57MUTE2ODriver stage pop-noise mute controlH : OFF, L : ON 58FAN1OFan rotation controlH : Operate, L : Stop 59FAN2OFan speed controlH : Low speed, L : High speed 60RESET-Hard resetH : Normal, L : Reset 61PCONIAmplifier power controlH : OFF, L :

19、ON 62LX_CONILX-BUS communication controlH : OFF, L : ON 63LX_REQ_MIData receive request from H/UH : ON, L : OFF 64NCONot used 65V_DOWNIMomentary power down detectionH : ON (Power down detection), L : OFF (L fixed) 66NCONot used 67VSS0-GND 68VD1-VDD 69X2-Main clock input 1 70X1-Main clock input 2 MIC

20、ROCOMPUTERS TERMINAL DESCRIPTION KAC-PS621/X621 6 Logic Table 1) Destination The destination in AMP does not mean the sales regions but specific models. The following are the models. When reset is released, it is checked only once. Model nameMODEL1 (29pin)MODEL2 (30pin) KAC-PS811D/X811DLowLow KAC-PS

21、521/X521LowHigh KAC-PS621/X621HighLow KAC-PS541/X541HighHigh Pin No.Pin NameI/OFunctionProcessing Operation Description 71TEST-Flash ROM writing 72XT2-Not used 73XT1-Not used 74VDD0-VDD 75AVDD-VDD 76AD-IIFirst current detection (for display) 77AD-VIBU voltage detection (for display) 7880TEMP1TEMP3IT

22、emperature detection 13 MICROCOMPUTERS TERMINAL DESCRIPTION 2) AMP ID AMP ID is checked only ohce at the time reset is released or when the microcomputer is released from the low consump- tion mode. When set to AMP ID 8/9 no remote control is possible. AMP ID DIP-SW1DIP-SW2DIP-SW3DIP-SW4 (25pin)(26p

23、in) (27pin) (28pin) 0HighHighHighHigh 1LowHighHighHigh 2HighLowHighHigh 3LowLowHighHigh 4HighHighLowHigh 5LowHighLowHigh 6HighLowLowHigh 7LowLowLowHigh 8HighHighHighLow 9LowHighHighLow 3) Fan speed OperationFAN1 (58pin)FAN2 (59pin) StopLowHigh/Low Low speedHighHigh High speedHighLow KAC-PS621/X621 7

24、 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 + 10K 10K J3 Q301 Q303 Q305 Q307 to H/U H/U GND CONSTANT CURRENT AMP GND from MPU 3421 11 78 12 6 10 5 9 13 4747 REQC H/U-GND 100K 12

25、K 1.5K 1.5K 20K 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. 1IDEL CURRENT VR1 (Lch)Connec

26、t a DC voltmeter between 2.5mV After Power onPC board VR2 (Rch)check land A, B.2 minutes(X09-577) 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 obtain data for displaying curr

27、ent 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 H/U and the AMP is not overlapped in the AMP to H/U communication. I2C buffer Using an IC for I2C commun

28、ication, be- tween-AMP communication is conducted so that there will be no trouble from GND po- tential differences. KAC-PS621/X621 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

29、 R25 R26 C21 R27 R28 C75 C27 R32 C22 C24 R30 R72 C74 R52 R74R76 C73 R73 R77 R111 R109 R112 R107 R108 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

30、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 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.

31、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 PREAMPLIFIER UNIT X08-4150-10 (J76-0010-12) Refer to the schematic diagram for the values of resistors and capacitors. X08-4150-10 Ref. No.Address IC12D IC36D IC46D IC56C IC66D IC74B KAC-PS621/X621 9 JIHGF

32、 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 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 TP

33、59 TP60 TP61 TP62 TP63 TP64 TP65 TP66 TP67 TP68 TP69 TP70 TP71 TP72 TP73 TP74 TP75 TP76 TP78 TP88 TP89 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 T

34、P127 TP128TP129 TP130 TP132 TP180 TP181 TP182 TP189 TP186 TP188 TP185 TP184 TP187 TP192 TP193 PEAMPLIFIER UNIT X08-4150-10 (J76-0010-12) Refer to the schematic diagram for the values of resistors and capacitors. KAC-PS621/X621 10 KLMNO 1 2 3 4 5 6 7 Q250 Q97 D1 D354 D2D3 D312 D352 D353 Q354 Q351 Q35

35、2 Q357 D351 Q353 Q102 Q101 Q347 D301 D317 D302 Q349 Q348 D315 Q346 Q313 Q50 Q306 Q304 Q302 D316 D307 Q301 D311 Q303 D308 D303 Q310 Q307 Q305 D55 Q69 Q68 Q355 Q249 D257 Q147 D133 Q112 Q111 D313 D306 D314 Q341 Q344 Q343 Q342 Q263 Q148 Q149 Q141 D310 D132 Q63 Q145 Q144 D260 D131 D344 D103 D305 D304 D34

36、3D341 D342 Q71 D70 Q70 Q62 Q356 Q358 D59 Q66 D108 Q61 D60 D71 D105 D106 D107 D109 D110 D111 D112 D114 D115 D116 D117 D118 D128 D130 Q103 Q104 Q105 Q106 Q107 Q108 Q109 Q110 Q113 Q114 Q115 Q116 Q117 Q118 Q120 Q122 Q123 Q124 Q125 Q126 Q127 Q128 Q129 Q130 Q131 Q132 Q134 Q136 Q137 Q138 Q140 Q146 Q403 Q40

37、4 J3 J4 J1 P1 Q142Q143 Q81 CN10 S1 S2 IC10IC1 IC7 IC8 IC5 IC6 IC3 AUDIO UNIT X09-5770-10 A/2 (J76-0007-01) W368 R113 C11 W404 C12 R4 R6 R3 R23 R7 R5 R16R15 R21 C5 R442 L9 R22 C6 R350 W372 W396 R19 R20 W403 R102R101 W346 W390 W384 W386 R355 R354 C353 W385 R351 R352 R478 W371 R115 R104 R103 W382 C152W

38、387R224C154 R222 R116 W388 W375 R250 R221 C151 R223 C153 W348 W360 R307 R303 C303 R306 W352 W359W392 R311 W355 W351 R317 R315 W393 W349 W391 W345 C313 R308 R314 R312 W335 R326 R325 W395 W394 R324 C307 W339 R310 R241 C343 W342 R329 W341 R328 R79 C71 R77 W400 R52 W336 R360 C402 R459 R278 R277 R249 C60

39、3 C602 C406 W343 R195 R196 C142 R193 C65 R190 W383 R112 C106 W380 W379 R118 W373 R117 R203 W377 W376 C105 R111 R142 R148 C128 W362 TH3 R140 C126 W354 W361 R67 C314 R272 R263 R269 R266 W327 R83 R192 R191 R177 R176 R175 R174 W316 C66 R70 R69 R92 C62 R183 R181 R186 R185 R141 C127 R182 R187 R188 R180 R1

40、78 R179 R110 W334 R339 C454 R476 R475 W366 R453 R481 C13 C14 R18 R17 R211 R212 R13 C1 C21 C2 R10 R9 R14 R12 R11 R8 W370 W369 C457 W389 R426 R425 R353 R450 R477 R482 W374 R402 C456 R356R357 W381 R114 R429 R460 W347 R304 W402 C354 C305 R309 R349 W364 R348 W363 C453 R422 R421 C452 W365 R313 R458 R76 C3

41、02 C304 W344 R347 C311 C312 R338 R316 W337 W338 R323 R341 R86 W340 R74 R434 R479 R452 R451 R480 R454 R443 R455 R444 C451 W356 R433 C404 C405 W405 R483 R432 R423 R424 W350 R428 R427 R430 R431 R401R80 R81 R194 R108 R189 R144 W357 W358 W353 R85 W401 R337 R336 R344 W330 R342 R84 R82 R199 R198 R197 R200

42、R107 W331 W332 R109 W321 R441 W399 W322 W329 R93 W324 R147 W323 W319 W398 R184 W217 W218 W101 W226 W214 C64 C138 W83 C257 W85 C401 C63 C109 W145 C147 W119 W68 C61 C67 C76 C103 C104 C111 C112 C137 C139 C140 C143 C W107 C260 C301 C308 C349 C350 C351 C352 C358 C403 C70 W96 W200 W227 W87 R105 R106 W220

43、W45 C3 C4 W61 W62 C15 C16 C19 C101 C102 C107 C108 C115 C116 C117 C118 C119 C120 C122 C123 C124 C129 C130 C131 C132 C133 C134 C135 C136 C141 W75 W259 W203 W129 W63 W72 R1 R2 W197 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R129 R130 R131 R132 R134 R136 R138 R145 R146 R152 R154 R156 R158 R160 R1

44、61 R162 R163 R164 R166 R168 R169 R170 R172 R173 R301 R302 R318 R319 R320 R321 R322R334 R335 R345 W168 W219 W70 W41 W46 W44 W50 W48 W199 W187 W149 W260 W102 W176 W74 W142 W141 W192 W130 W110 W123 W57 W139 W53 W52 W49 W51 W47 W43 W73 W76 W77 W58 C17 W71 W177 W147 W91 W150 W173 W162 W160 W161 W159 W163

45、 W137 W138 X1 W67 W231 W124 W122 W104 W133 W171 W164 W180 W184 W153 W167 W165 W97 W135 W144 W172 W185 W175 W181 W78 W230 W131 W148 C69 W202 W90 W84 W81 W82 W134 W86 W66 W89 W65 W179 W194 W198 W195 W174 W191 W190 W92 W166 W158 W109 W64 W59 W60 W111 W125 W169 W114 W55 W106 W121 W196 W157 W178 W201 121

46、 222 W193 W189 W188 W186 W154 W182 W152 W146 W140 W132 W112 W126 W127 W99 W105 W94 W98 W95 W108 W88 W118 W115 W155 W100 W54 W56 W143 W136 W80 W116 W151 W79 W183 W204 W232 C74 W229 W113 W42 W128 C18 W228 85 41 BE B E BE S G D B E BE BE BE BE B E BE B E BE E B E B EB E B E B EB EB EB E B E B EB EB EB

47、BE EB BE EB EB BE 41 85 14 85 85 41 58 41 2 1 3 4 1 20 41 60 40 21 61 EBEBEBEBEB BE EB EB EB 80 EBEB BE BE BE BE BE BE BE BE BE BE BE BE BE BE BEBE BE BE BE BE BEBEBEBE BE BE BE BE BE BE BEBE BE BEBE BE BE BEBE BE BEBE DATA CLK +15V -15V +5V Rch Rch TP1 TP4 TP6 TP7 TP12 TP10 TP22 TP21 TP20 TP19 TP18

48、 TP16 TP15 TP14 TP11 TP2 TP24 TP26 TP27 TP28TP29 TP30 TP31 12 14 85 9 13 12 34 TP32 TP33 TP34 TP35 TP37 TP38 TP39 TP36 TP25 TP40 I-GND L-IN R-IN GND GND GND RESET GND X1 TEST Vdd DA-S CLK TP5 TP23 TP3 I-GND DC voltmeter 2.5mV VR2 PC BOARD (FOIL SIDE VIEW) X09-5770-10 Ref. No. Address IC15L IC25S IC3

49、5M IC55N IC64M IC74L Ref. No. Address IC94P IC105K Q505M Q514S Q525S Q534S Ref. No. Address Q544S Q553S Q563S Q574S Q584S Q595S Ref. No. Address Q604S Q612N Q622O Q632N Q645S Q655T Ref. No. Address Q665N Q685M Q695M Q706O Q716O Q813N Ref. No. Address Q914S Q924S Q975L Q1013L Q1023L Q1033L Ref. No. Address Q1043L Q1053L Q1063K Q1073L Q1083L Q1093L Ref. No. Address Q1103K Q1113L Q1123L Q1134N Q1144N Q1154N Ref. No. Address Q1164N Q1174O Q1184N Q1192P Q1202M Q1212Q Ref. No. Address Q1222M Q1232O Q1242L Q1253O Q1263M Q1273O KAC-PS621/X621 11 TSRQP 1 2 3 4 5 6 7 D309 Q51 Q52