Kenwood-KACX-810-D-Service-Manual 电路图 维修手册.pdf

《Kenwood-KACX-810-D-Service-Manual 电路图 维修手册.pdf》由会员分享，可在线阅读，更多相关《Kenwood-KACX-810-D-Service-Manual 电路图 维修手册.pdf（17页珍藏版）》请在收音机爱好者资料库上搜索。

1、 2002-2 PRINTED IN JAPAN B51-7897-00 (S) 3404 MONO POWER AMPLIFIER SERVICE MANUAL KAC-X810D/PS810D Screw set (N99-1577-15) Accessory (W01-1586-05) Cover (F07-1110-01) x 2 Refer to the PARTS LIST G KAC-X810D OFF -12dB -6dB BAND REJECT REMOTE+12dB OFF B.M.S NORMALREVERSE15Hz 25HzOFF ON PHASEINFRASONIC

2、 LINE INLINE OUTEXT.AMP.CONT. FUSE(25AX3) BATT.P.CON SPEAKER OUTPUT POWER IN GND INPUT SENSITIVITY(V) B.M.S. FREQUENCY(HZ) LPF FREQUENCY(HZ) B.R.F. FREQUENCY(HZ) MONO POWER AMPLIFIER ? (MIN)50.2(MAX) 40200 50200 40100 0.3 0.52 1 3 4 V-COLOR Heat sink (F01-1684-01) Dressing panel (A21-4190-02) Mounti

3、ng hardware (J21-9864-04) x 4 RadioFans.CN 收音机爱 好者资料库 KAC-X810D/PS810D 2 BLOCK DIAGRAM INPUT OUTPUT J1 ISOLATION AMPLIFIER INPUT SENS I.S.F.B.R.FINV S5 B.M.SL.P.FMUTE AMP COMPEARATE POWER AMP OFFSET FREQUENCY DRIVER MUTETRIANGLE WAVE OVERLOAD DETECTION DC OFFSET MICRO-COMPUTER DETECTION PCON OVER VO

4、LTAGE PROTECTION DOWN VOLTAGE SWITCHCONVERTER DC/DC +15V -15V AVR AVR +5V 5V SWITCH POWER FUSE V-LED PROTECTION THERMAL OUTPUT SPEAKER J2 J2 PCON J2 BATTERY J5 B.BOOST CONTROL IC1 IC2IC3IC3IC4,13IC7Q6 IC8,9 Q53,56IC12 IC8,9Q4IC15 IC6 D1 TH2,3 Q62,63 Q34-37 Q73 Q65 Q57,61 Q7 Q5 Q10,11 S3S4 IC14 Q68,6

5、9 Q14-25,39-46 +5V +5V +15V -15V +B/-B/+14V RadioFans.CN 收音机爱 好者资料库 KAC-X810D/PS810D 3 G AUDIO UNIT (X09-5440-10) ComponentPurpose Function IC1Isolation AMP IC2Infrasonic AMP IC3 Band rejection AMP (1/4-3/4) IC3 (4/4)Inverter IC4,13Bus boost AMP IC5Recet IC IC6Microcomputer IC7Low-pass filter AMP IC

6、8 (1/2) Chopping wave generator circuit IC9 (1/2) IC8 (2/2)Summing AMP IC9 (2/2)PWM waveform generator circuit IC10,11Dead time generator circuit IC12Used for overcurrent detection IC14DC/DC converter IC IC15 Used for B.M.S frequency offset Q59,60 Q1-3Used for LED driver Q4,6 Used for MUTE D6,7 Q5Us

7、ed for SW +5V Q7,9 Used for +5V AVR D11 Q10,12 Used for +15V AVR D14 Q11,13 Used for 15V AVR D15 Q14,16-19Used for VI conversion Q15,D20Used for +15V AVR Q20,21Used for cascade Q22,24 Gate failure prevention circuit D27 Q23,25Used for D-AMP ON/OFF Q26-29 Q34-37MOS FET for DC/DC Q68,69 Q30-33 MOS FET

8、 Driver Tr Q39-42 Q38,58,64 Overcurrent Detector Circuit D32,42,45,46 Q43-46MOS FET (Power FET) Q47-50MOS FET Driver Tr Q51,52 Used for output current VI conversion Q54,55 Q53,56DC detection Q57,61 Used for P-CON D33 Q62,63Power ON Q65,D34Used for overvoltage detection Q66Used for B.M.S Q70,71Used f

9、or Pulling 15V Q73,D37Used for reduced voltage detection D1Variable color LED D2-5Used for static electricity prevention COMPONENT DESCRIPTION ComponentPurpose Function D8-10,12,13 Used for the limitation of a chopping wave voltage D21,22,40,41Used for rectification (B) D23-26Used for rectification

10、(+15V) D28,29Used for 8.2V AVR D30,31Used for MOS FET Drive D35,36,38 Protection circuit (error connection) for the prevention of reverse connection D39Used for 5.1V AVR D43,4410V AVR RadioFans.CN 收音机爱 好者资料库 KAC-X810D/PS810D 4 MICROCOMPUTERS TERMINAL DESCRIPTION G IC6 (AUDIO UNIT : X09-5440-10) Pin

11、No.Pin NameI/ODescriptionProcessing Operation 1+5V_SWOLow-current controlLo: SW 5V ON 2N.C.-Not used 3FAN-Not used 4N.C.-Not used 5D_VOLTAGEID-class overvoltage detectionLo: Overvoltage detection 6V_DOWNIReduced voltage detectionHi: Reduced voltage detection 7D_CURRENTID-class overcurrent detectionL

12、o: Overcurrent detectction when D power ON 8AB_VOLTAGEIAB-class overvoltage detectionLo: Overvoltage detection 9AB_CURRENTIAB-class overcurrent detectionHi: Overcurrent detection 10BLUEOBlue control of variable illuminationHi: Illumination lighting 11GREENOGreen control of variable illuminationHi: I

13、llumination lighting 12REDORed control of variable illuminationHi: Illumination lighting 13TEST- 14RST-Reset signal inputLo: Reset operation 15XIN-High-frequency oscillating connection pin 16XOUT-High-frequency oscillating connection pin 17VSS-0V (GND) 18VAREF-A/D reference voltage 19ADIN_1ITemperat

14、ure detection 1 (A/D input)Hi: Abnormal temperature detection 20ADIN_2ITemperature detection 2 (A/D input)Hi: Abnormal temperature detection 21ADIN_3ITemperature detection 3 (A/D input)Hi: Abnormal temperature detection 22ADIN_4ITemperature detection 4 (A/D input)Hi: Abnormal temperature detection 2

15、3N.C.-Not used 24BASS 12dBIB.M.S +12dB fixedHi: B.M.S fixed +12dB 25BASS REMOIB.M.S switched from H/UHi: B.M.S switched from H/U 26BASS OFFIBOOST OFFHi: BOOST OFF 27D_POWEROD-class Amp block controlHi: D-class Amp block ON 28N.C.-Not used 29N.C.-Not used 30POWEROAMP power controlHi: SW 14.4V ON 31CO

16、M_HUIPulse measurement of H/U communication 32OFFSET CONOOffset control of BASS BOOST frequencyHi: OFFSET ON 33BASS_CON_AOBASS BOOST control A 34BASS_CON_BOBASS BOOST control B 35N.C.-Not used 36N.C.-Not used 37STANBYIStop mode canceled by Pcon ONLo: Pcon ON or BUP overvoltage detection 38N.C.-Not u

17、sed 39N.C.-Not used 40VDD-Positive potential 41TACT SWISwitch input for color determinationHi: SW ON 42MUTE2OMute control in driver stageLo: MUTE2 ON 43MUTE1OMute control in amplifier block input stageLo: MUTE1 ON 44N.C.-Not used KAC-X810D/PS810D 5 CIRCUIT DESCRIPTION 1. PWM Signal Waveform Generati

18、on A and B are sent to the comparator so as to generate the PWM waveform of C. (A clock of 50% in duty ratio is obtained when B is 0.) A: Chopping wave B: Analog input C: PWM Signal AB C 0 0 UPDOWNUPDOWNUP Dead Time The waveform of C is divided into upper and lower gate waveforms. An OFF section is

19、created so that the upper gate waveform is not turned on simultaneously with the lower gate waveform. MUTE Q6 D12 D10 D13 D9 D43 D8 IC9 AMP IC8 (2/2) SUMMING D39 (2/2) IC11D17 GEN CIRCUIT DEAD TIME (2/4) (2/4) (1/4) IC10 IC10 IC10 (4/4) IC10 (3/4) D16 PWM WAVE GEN CIRCUIT (1/2) IC9 IC8 (1/2) IC11 D1

20、9 (1/4) D18 VI CONV 4 1800P R58 33K 10.3V 8 3 2 150 +10.3V R77 820 R86 4.7K R270 C57 47P R100 680K 47u 10V 68K C58 3900P + C49 R101 + R71 3.3K 82K R75 C47 0.1 C42 1u50 R78 1K 6 R83 1K 5 24K R107 5 4 R108 1.5K R105 4.7K 7 3 6 12 C55 39P 12 13 C36 47u10 + 10K R85 2 510 R66 7 1 14 6 5 43 11 C54 13 12 1

21、1 39P R84 10K 10 9 8 C62 0.01 IC9(2/2) R106 10K 10.3V 1 C59 0.01 9 11 10 8 7 R70 10K R69 C56 3K +10.3V R73 1.5K 7 R119 1K 14 10 9 8 R118 1K +5V +5V+5V 10.3V CB Analog-fed back from the output stage. Audio signal Chopping wave generator circuit The dead time is determined by this time constant. Upper

22、 gate Lower gate A KAC-X810D/PS810D 6 CIRCUIT DESCRIPTION 2. D-AMP Block The voltages at the upper and lower gates are current- converted using Q14 and Q16 to Q19. The converted current is returned to a voltage using R167 and R168 to drive MOSFET by Q30 to Q33 and Q39 to Q42 (push-pull operation). T

23、he PWM waveform swung up to B is output to A and converted into analog using an LC filter. Note: Q24 turns off the upper gate voltage when the lower gate voltage is turned on. (It prevents the voltages from being turned on simultaneously.) Q44 Q43 Q23 Q18Q17 Q22 Q19 VI CONV Q40 Q16 DRIVER MOS FET Q4

24、2 CASCADE Q33 Q41 Q32 Q38 D-AMP ON/OFF Q25 Q24 D27 DRIVER MOS FET Q31 Q39Q30 POWER FET Q46 POWER FET Q45 R196 0.1 2W 1.5K R123 R144 Q17-19 R145 10 1/2W 10 1/2W R162 51 1/2W 510 1/2W 510 1/2W R129 R134 270 1/2W R137 R153 330 1/2W R150 1K R167 330 R194 47K 1/2W R130 750 1/2W R195 47K R168 1.2K 1/2W Q3

25、2,33,41,42 80V 1/2W R274 2.2 R177 100 1/2W R171 100 C81 R166 R174 10K R179 10K R164 1K 1/2W Q23,25 +93.5V R193 0.1 2W 330P 1/2W R155 C77 1/2W 5.1K 1/2W R157 1K Q30,31,39,40 R170 100 1/2W R272 2.2 R176 100 1/2W R204 0.1 2W R209 0.1 2W R206 0.1 2W R198 0.1 2W R200 0.1 2W R275 2.2 R208 0.1 2W R205 0.1

26、2W R201 0.1 2W R199 0.1 2W R197 0.1 2W Q43,45 2.2 R273 0.01 47K 1/2W CIRCUIT GATE MISTAKE PREVENTION Q22 93.5V 80.0V 4.5V Q14 R124 750 1/2W Q20R146 1K 1/2W Q21R147 1K 1/2W Upper gate Lower gate D-AMP ON/OFF circuit A SP OUT +B B 7 3. Overcurrent Detector Circuit The signal level detected in A and B

27、appears in C, and the signal is current-converted using Q54 and R227. The converted current is voltage-converted using R233, and the output signal of IC12 is set high when the voltage becomes more than +7.5 V. The power of the D-amp is turned off when D is set high. The information is sent to a micr

28、ocomputer. E establishes a positive feedback for a fixed time to stabilize the operation. CIRCUIT DESCRIPTION KAC-X810D/PS810D Q44 Q43 POWER FET Q46 Q51 POWER FET Q45 Q55 Q52 Q54 D46D45 OVER CURRENT DET IC12 D32 D42 Q58 Q64 R196 0.1 2W R194 47KR195 47K 80V R274 2.2 R193 0.1 2W R272 2.2 R204 0.1 2W R

29、209 0.1 2W R206 0.1 2W R198 0.1 2W R200 0.1 2W R275 2.2 80V 20K R218 R208 0.1 2W R205 0.1 2W R201 0.1 2W R199 0.1 2W R197 0.1 2W 3.3K Q43,45 2.2 R273 R219 3.3K R228 2.7K R276 R222 680K 2.2K R233 +80V +80V 3.3K R227 +15V 3 R236 C112 0.01 C113 0.01 4.7K 4 47u 10V C117 + R243 47K R241 15K 4.7K R235 +15

30、V R240 15K 2 7 8 +15V 4.7u50 C116 + +15V 80.0V -80.0V EC D A B Detection resistors on plus side Detection resistors on minus side ABCD 1 2 3 4 5 6 7 Refer to the schematic diagram for the values of resistors and capacitors. PC BOARD 8 CN1 S1 CN2CN3 VR2 VR1 BMSSENS 16 VR3 LPF HPF(X520) BRF(X810D) VR4

31、 1166 Foil Side View PREAMPLIFIER UNIT X08-4090-10 (J74-1362-11) CN1CN2CN3 S1 VR1 VR2VR3 LPF BMSSENS VR4 BRF(X810D) HPF(X520) 161166 PREAMPLIFIER UNIT X08-4090-10 (J74-1362-11) Component Side View MLKIJHGEF 1 2 3 4 5 6 7 PC BOARD (Component Side View) AUDIO UNIT Refer to the schematic diagram for th

32、e values of resistors and capacitors. 910 AUDIO UNIT (A/2) (X09-5440-10) .ON . f eR sserddA CIQ 1F3 2F4 3F4 4F5 5G4 6H4 7G6 8H6 9H6 01H5 11H5 21I5 31F5 41G3 51F5 1H5 2H5 3H5 4H6 5G3 6G6 7H4 9H4 01I6 11H6 21I6 31H6 41I5 51K4 61I5 71I5 81I5 91I5 02I6 12I6 22I6 32I4 42J6 52I4 62M2 72K2 82L2 92J2 03J6 1

33、3J6 23I6 33I6 43L2 53J2 63K2 73J2 83I4 93J6 04J6 14J6 24J6 34K6 44L6 54J6 64L6 74G2 84G2 94G2 05F2 15J5 25J5 35J5 45J5 55J5 65J5 75K4 85I5 95F6 06F6 16L4 26G3 36G3 46I5 56K4 66F2 86K2 96I2 07H6 17H6 37K4 R118 R119 C62 C60 R172 C18 R163 C76 C71 C74 R173 R181 C59 C15 R180 R175 C17 C16 C68 C113 C115 R1

34、32R135 C112 R128 R122 C122 R125 R127 R126 C108 R158 R151 R159 R161 C81 C90 C99 C104 R142 C91 R143 R186 R244 R243 R242 R247 R246 R245 R241 R236 R235 R240 R239 R238 R258 R257 R256 R260 R259 R255 R251 R250 R249 R254 R253 R252 R210 R207 C11 R213 C57 R211 C14 R189 R188 R187 R192 R191 R190 R214 C47 R229 R

35、226 R233 R232 R231 R224 C52 R217 R216 R223 R221 R220 R3 R14 R12 R9 R10 R11 C25 R4 R50 R53 R15 R54 R16 R67 R66 R65 R69 R73 R71 R70 R58 R56 R59 R63 R62 R60 R49 R30 R32 R35 C30 R33 R266 R6 R7 R23 R28 R281 R45 R263 R269 R46 R18 C137 R47 R38 C28 R5 R39 C27 R40 R75 R8 C24 R101 R100 R88 R87R94 C43 C21 C22

36、R116R115 R111 R106 R105 R108 R265 R86 R78 R77 R85 R82 R83 R84 R267 R276 R264 R502 C136 C133 C134 C129 R218 R219 R222 R227 R228 R225 R230 R234 R237 L9 R287 R288 C135 R261 C504 R510 R504 R503 R501 C502 R505 R507 R506 R508 R509 C501 R272 R273 R274 R275 X1 EB E B E B E BEB EB 18 916 14 85 14 85 1 7 14 8

37、 1 5 81 4 1 89 16 14 58 14 58 14 58 1 7 814814 17 3 5 4 1 11 33 23 22 12 44 34 1 4 8 5 14 58 R212 R112R113 R89 R268 R215 R262 R270 C124 C128 R271 C503 W31 L7 L8 R37 R42 R34 R36 R97 R98 R48 R52 R27 R13 R17 R1 R2 R21 R24 R19 R20 C126 R166 R194 R195 R179 R174 R178 C58 C77 C73 C72 C139 C55 C54 C75 C19 C

38、8 C29 C87 C100 C5 C4 C103 C101 C48 C33 C120 C53 C35 C10C23 R144 R140 R147 R146 R145 R139 R134 R137 R148 R162 R157 R167 R164 R150 R155 R153 R171 R176R177 W43 R170 R123 W42 R130 R129 R124 C125 R168 W53 W54 C93C94 R277 W104 C138 C102 C51 C105 C49 C50 C109 C32 C119 C121 C34 C63 C61 C70 C116 C117 C31 C44

39、 C36 C42 C46 C12 C41 C82 C45 C9 C123 C69 W105 C97 R198 R199 R200 R193 R196 R197 R201 R208 R209 R206 R204 R205 C56 C13 TH3 W103 R282 R283 W106 W55 W107 W108 W101 W56 R278 W102 W12 W2 W24 W15 W1 R248 W9 W16 W11 W10 W18 W17 W23 W22 W21 W8 W13 W14 W19 R107 TH2 C98 C127 C2 C3 C1 R284 W20 W57 W46 R285 W47

40、 W48 W49 W50 W51 C140 W52 W30 W29 W33 W32 W37 W36 W27 W28 W34 W35 W39 W40 W41 W38 W45 W44 W26 W6 W25 W7 W4 W5 W3 R279 R280 L3 C78 C79 C84 C85 L4 C66 L6 C65 C64 L5 C67 BE EB EB EB SG EB S G E B E B E B B EB BE E EB B E BE BE B BE BE E B E B EB B B BE BEBE BEBE BEE BEE BE EB EB B E E B E E B E E BE EB

41、 EB E EB B E B BE EB B B B E E B B E E EB E B E B B DSDGSDGSDGSDGSDGSDGSDGSDGSDG 17 814 DS G DS G DS G D 14 41 611616 OFF+12dB B.M.S OFF-12dB ONOFF -6dB B.R.F I.N.V REM IC10IC11 IC13 IC12 IC4 IC7 IC8 IC1 IC2 IC5 IC15 IC14 IC3 IC6 IC501 Q73 Q57 Q4 Q62 Q60 Q59 ONOFF25Hz 15Hz INPUT I.S.FI.S.F SEL D1 E1

42、 D39 D21 Q35 Q70 Q71 WH1 D40 Q68 Q27Q29 Q34 WH2WH3 D501 J1 CN1 WH4 Q501 Q22 D42 Q28 Q26Q37 D41 D22 Q503 Q502 D44 Q69 D43 D503 D502 WH4 WH5 FUSE FUSE FUSE Q51Q54 Q52Q55 D8 D7 D12 D9 D6 D2 D5 D30 D27 D32 D31 D19 D16 D13 D18 D17 D15 D20 D14 D10 D11 D34 D37 D33 D28 D29 Q13 Q1 Q24 Q65 Q66 Q2 Q6 Q9 Q5 Q3

43、Q12 Q56 Q49 Q53 Q47 Q50 Q38 Q64 Q61 Q48 Q58 Q10 Q11 Q14 Q16 Q63 Q15 Q7 D25 D26 D23 D24 D45 D46 J2 E2 Q43Q44 IC9 Q30 Q17 Q39 Q18 Q32 Q19 Q41 Q21 Q23 Q25 Q42 D35 Q33Q31Q40 Q20 D38 D36 J5 P-CON SP-OUT SIGNAL GND J3J4 S2S3 S5 S1 S4 CN2 D4 X09 B/2 D3 Q46 Q45 GND BATT. Q36 X09-5440-10 (A/2) (J74-1361-11)

44、NOPRQSTVU 1 2 3 4 5 6 7 R212 R112R113 R89 R268 R215 R262 R270 C124 C128 R271 C503 W31 L7 L8 R37 R42 R34 R36 R97 R98 R48 R52 R27 R13 R17 R1 R2 R21 R24 R19 R20 C126 R166 R194 R195 R179 R174 R178 C58 C77 C73 C72 C139 C55 C54 C75 C19 C8 C29 C87 C100 C5 C4 C103 C101 C48 C33 C120 C53 C35 C10C23 R144 R140

45、R147 R146 R145 R139 R134 R137 R148 R162 R157 R167 R164 R150 R155 R153 R171 R176R177 W43 R170 R123 W42 R130 R129 R124 C125 R168 W53 W54 C93C94 R277 W104 C138 C102 C51 C105 C49 C50 C109 C32 C119 C121 C34 C63 C61 C70 C116 C117 C31 C44 C36 C42 C46 C12 C41 C82 C45 C9 C123 C69 W105 C97 R198 R199 R200 R193

46、 R196 R197 R201 R208 R209 R206 R204 R205 C56 C13 TH3 W103 R282 R283 W106 W55 W107 W108 W101 W56 R278 W102 W12 W2 W24 W15 W1 R248 W9 W16 W11 W10 W18 W17 W23 W22 W21 W8 W13 W14 W19 R107 TH2 C98 C127 C2 C3 C1 R284 W20 W57 W46 R285 W47 W48 W49 W50 W51 C140 W52 W30 W29 W33 W32 W37 W36 W27 W28 W34 W35 W39

47、 W40 W41 W38 W45 W44 W26 W6 W25 W7 W4 W5 W3 R279 R280 L3 C78 C79 C84 C85 L4 C66 L6 C65 C64 L5 C67 BE E B E B E B GS EB S G E B E B E B B EB BE E EB B E BE BE B BE BE EB E B EB B B BE B EBE BE BE BE E BE E B E EBEB B E EB E E B E E BE EB EB E EB B E B B E EB B B B E E B B E E E B E B E B B DGDSGDSGDS

48、GDSGDSGDSGDSGDSGDS D G DS G DS G DS 17 814 41 161616 14 ONOFF I.N.V OFF+12dB B.M.S OFF-12dB-6dB B.R.F REM ONOFF25Hz15Hz INPUT I.S.FI.S.F SEL D1 E1 D39 D21Q35 Q70 Q71 WH1 D40 Q68 Q27Q29 Q34 WH2 WH3 D501 J1 CN1 WH4 Q501 Q22 D42 Q28 Q26Q37 D41 D22 Q503 Q502 D44 Q69 D43 D503 D502 WH4 WH5 FUSE FUSE FUSE

49、Q51Q54 Q52Q55 D8 D7 D12 D9 D6 D2 D5 D30 D27 D32 D31 D19 D16 D13 D18 D17 D15 D20 D14 D10 D11 D34 D37 D33 D28 D29 Q13 Q1 Q24 Q65 Q66 Q2 Q6 Q9 Q5 Q3 Q12 Q56 Q49 Q53 Q47 Q50 Q38 Q64 Q61 Q48 Q58 Q10Q11 Q14 Q16 Q63 Q15 Q7 D25 D26D23 D24 D45 D46 J2 E2 Q43Q44 IC9 Q30 Q17 Q39 Q18 Q32 Q19 Q41 Q21 Q23 Q25 Q42 D35 Q33Q31Q40 Q20 D38 D36 J5 P-CON SP-OUT SIGNAL GND J3J4 S2S3 S5 S1 S4 CN2 D4 X09 B/2 D3 Q46 Q45 GND BATT. Q36 Refer to the schematic diagram for the values of resistors and capacitors. 1112 PC BOARD (Foil Side View) AUDIO UNIT (A/2) (X09-5440-10) .ON . f eR sserddA CIQ 9S6 1S5