Kenwood KAC-PS4D/X4R, Service Manual

Page 1: ...essing Panel A21 6578 01 KAC X4R A21 6579 01 KAC PS4D Screw Wrench Key set N99 1795 05 Fuse 25A F52 0014 05 Compact disc W01 1701 05 KAC PS4D X4R POWER AMPLIFIER SERVICE MANUAL This product uses Lead Free solder This product complies with the RoHS directive for the European market ...

Page 2: ... CURRENT DETECTOR DETECTOR 1 VOLTAGE TEMPERATURE DETECTOR DETECTOR OUTPUT DC 5V 3V INTERFACE RCA OUT L R ROTARY ENCODER DETECTOR PCON RESET IC REG 3 3V SW P S FDFWD DAC ADC DSP USB ANTI PUMP FEED BACK SPDIF REG 1 8V SW DSP A5V REG D5V REG DAC ADC P S FDFWD FEED BACK SPDIF ANTI PUMP FINAL FINAL FEED BACK ANTI PUMP HV REG HV REG CONTROL PWM LC FILTER FUSE GND BATT14 4V REG BU5V SWITCH SLIDE FL DRIVE...

Page 3: ...ut IC310 DAC for pre out IC500 Error Amp for 16V regulator IC502 SW power supply control IC IC503 12V voltage regulator IC507 buffer for sync clk IC509 14 5V SW regulator IC510 511 dcdc converter for 3 3V and 1 8V IC512 5V voltage regulator IC601 Amp for differential input of AD converter IC602 Buffer amp for common voltage of AD converter IC603 704 804 AD Converter for feedback IC605 FET driver f...

Page 4: ...n AVR of FIL Q531 Interception circuit of VFL Q533 fixed current supply of 16V Q601 602 SW transistor for Anti pump circuit Q603 604 current detect for Anti Pump circuit Q605 on off SW of N_PSCURR Anti pump over current det Q901 On off SW of SW5V Q902 Logo LED driver Q903 inverter of 40V detect circuit Q904 Interception circuit of B14V Q905 On off SW of Q904 Q906 907 SP DC detect circuit Q908 Inte...

Page 5: ...I Over current detection Check current every 1ms and when L is detected 15 times in succession the over current is detected and enter the over current protection mode Turn off the amplifier power supply and display the error E 03 Automatically recover in 200msec 22 D2_RESET O Reset TENZING L RESET 23 D2_RST_DET I Tenzing reset detection When Low is detected at pin23 while the pin22 of the µ com is...

Page 6: ... the temperature and overheat protection 53 TEMP4 I Temperature detection 4 at power supply side For display and protection Displays the temperature and overheat protection 54 TEMP3 I Temperature detection 3 at power supply side For display and protection Displays the temperature and overheat protection 55 TEMP2 I Temperature detection 2 at power supply side For display and protection Displays the...

Page 7: ...play segment in the following sequence of order All on m GRID1 on m GRID2 on m GRID3 on m All of Check of FAN switching In the FAN switching mode it is possible to select to rotate or stop the FAN regardless of the present temperature L G O E OVER Hz dB o Push OVER Hz dB o OVER Hz dB o K O C L G N C L C L M OVER Hz dB o Push Check of LED switching In the LED switching mode it is possible to select...

Page 8: ...er and it is signal conditioned in the DSP so that it can be amplified by the PWM digital amplifier It is PWM amplified to the analog signal by the driver and power MOSFET to the level that can be output from the speaker Main signal amplifier circuit with PWM Main signal amplifier circuit with PWM The audio signal that is DA converted is converted into the signal for PWM in the DSP Its level is sh...

Page 9: ...B ST MONO B ch A ch 1 2 41 42 1 3 PUSH ENCODER ROTARY AB A A ST MONO 1 29 2 30 INPUT SENSITIVITY 1 2 1 C118 W45 C117 R29 W46 R202 R108 R33 R34 C104 R106 C101 C102 C105 C106 C107 C108 C110 C113 R102 R107 R113 R116 C1 C2 C27 C28 R9 R10 R25 R26 C3 C4 C31 C32 R11 R12 R27 R28 VR2 VR1 C112 C5 C6 C7 C8 C13 C14 C15 C16 R1 R2 R3 R4 R5 R6 R7 R8 R13 R14 R15 R16 R17 R18 R19 R20 R100 R101 R103 R104 R105 R109 R...

Page 10: ...C915 R233 C234 C544 C565 C567 C568 R234 R540 C940 R884 R885 R965 R546 4 1 C504 C509 C510 C538 R144 R531 R530 R522 R523 R524 R525 R526 R527 R528 R529 R539 R961 R962 R963 R964 R966 R500 C543 R143 R142 R141 R244 R243 R242 C236 C235 R241 C237 C238 R99 C945 C943 C941 C944 C70 R95 C66 R1 R96 C65 C69 R136 R2 C948 7 BE BE D D D D D D D D S G G S S S S G G G S S E B S G G E B G D D D D D D D D D501 D502 D5...

Page 11: ... R131 R232 R230 C422 C933 C934 R995 C559 R558 C553 R554 C112 C114 C212 C214 C307 C308 C313 C314 C319 C320 C321 C322 C325 C326 C335 C336 C360 C362 C366 C407 C408 C413 C414 C419 C420 C421 C425 C426 C435 C436 C460 C466 C134 R134 4 1 R18 C60 R620 R81 R83 C552 C558 C610 C617 C711 C712 C713 C714 C811 C812 C813 C814 C916 R144 R1 R2 R3 R4 R5 R6 L4 L5 R59 R60 R72 R73 R74 R75 R76 R77 R78 R79 R132 R229 R231 ...

Page 12: ...06 C707 C708 C805 C806 C807 C808 R889 C540 R888 R551 R31 R32 R33 R37 R38 R39 R40 R41 R42 R43 R44 L6 R54 R55 R56 R57 R58 R64 R67 R101 R102 R103 R104 R105 R106 R107 R108 R149 R150 R111 R112 R113 R114 R115 R116 R117 R118 R119 R120 R121 R122 R125 R126 R129 R201 R202 R203 R204 R205 R206 R207 R208 R249 R250 R211 R212 R213 R214 R215 R216 R217 R218 R219 R220 R221 R222 R225 R226 R301 R302 R305 R306 R311 R3...

Page 13: ... values of resistors and capacitors X09 8620 10 Ref No Address Ref No Address IC101 IC102 IC201 IC202 IC301 IC302 IC303 IC304 IC306 IC310 IC401 IC402 IC403 IC404 IC500 IC502 IC601 IC602 IC603 IC604 IC605 IC701 IC702 IC704 IC801 IC802 IC804 IC902 IC904 Q105 Q106 Q107 Q108 Q109 Q110 Q111 Q112 Q113 Q205 Q206 Q207 Q208 5S 4S 4S 3S 5Q 5Q 5Q 5Q 4R 6P 5Q 5R 5Q 5R 2R 5X 3R 3R 3R 2S 2S 5R 4R 4R 4R 4R 4R 3P...

Page 14: ... R813 36K R801 0 R807 0 R829 R818 1 8K R816 1 8K R817 1 8K R815 1 8K 2700P C813 510 R831 0 1 C810 R823 2 2K C811 47P 680P C801 680P C803 R824 2 2K C812 47P 680P C802 680P C804 470P C807 470P C808 20B 21B 17B 16B 0 1 C821 0 1 C820 R844 10K R836 120 R839 10K R843 1K 10P C830 10 R849 67 120 R838 220u6 3 C817 2700P C815 3 2 4 1 8 5 6 7 2 3 1 4 8 5 6 7 20A 21A 71 16A 17A REFGND VL SDOUT I2S LJ MDIV 12 ...

Page 15: ...4 47u25 65uH L508 TP147 47 TP143 R533 R570 47 1 2W 1 2W 14 15 C534 7500u56 C546 VIN C544 1 3K 3 TP166 2 1 ADJ VOUT R548 120 OUT VCC GND TP165 C543 220u16 220u16 C548 C549 0 1 1 2 3 W4 R540 4 7K R551 1000P C540 6 4 7 R535 100 6 8K 6 8K W2 TP141 7 6 5 L501 8 TP148 10 11 12 TP140 9 TP145 C533 7500u56 65uH L507 R539 47K R541 4 7K R534 6 8K R550 6 8K 5 3 2 8 1 16 9 C623 100u6 3 C622 0 1 C516 220u35 TP1...

Page 16: ...0 1 1K C919 47u25 R976 10K C937 10u16 R85 10K TP164 TP32 R83 100 C921 47u25 C923 220u16 TH6 TH5 TH4 R980 1K TH3 TH2 TH1 C922 1 R978 47K R979 510 R983 100K R981 33K R982 10K C924 10u50 R985 10K 0 1 0 1 4 7uH L901 C925 10u50 R988 1 5K R987 3 9K C926 R991 10K 5 1K R561 K K 510 R84 C920 0 1 R961 47K R962 47K R963 47K R964 47K R915 10K R916 10K R917 47K R918 10K R920 10K R854 10K R851 4 7K R922 10K R92...

Page 17: ... 0 1 C317 10K 10K C319 18P R305 4 7K R378 100u25 C301 1000P C305 R303 10K R301 1K 0 1 C303 C307 10u50 15V 15V 10 10K 1 R311 4 2 C313 18P 3 8 R313 5 10u50 7 6 R317 10K BL C321 1K R410 C412 1000P R428 2 2K R430 2 2K C430 47P 0 1 C429 47P R427 2 2K R429 2 2K 1 R431 1K 6 5 4 4 7K R425 2 8 3 C431 0 1 7 100 R435 C435 2700P R423 4 7K C427 47P R421 C425 4 7K 10u16 R433 100 C432 A AL A AR R332 1K R326 4 7K...

Page 18: ...RST SYS1 XTALI XTALO PLLAGND PLLVDD OSCVDD 103 106 107 108 104 105 101 102 98 99 100 C49 10 C51 0 1 R90 10K 10 C52 0 1 C60 18P R18 R53 0 10 PWMH1 0 1 0 1 75 67 FDAT20 64 PROTB1 PROTB0 FDAT12 65 66 71 FDAT11 FDAT10 FMCLK1 FDAT02 68 69 70 FDAT01 FDAT00 FMCLK0 RVDD3 72 73 74 R43 120 83 79 RGND3 CGND6 CVDD6 PWMGND1 76 77 78 PWML3 PWMH3 PWMVDD1 CVDD7 80 81 82 PWMH2 CGND7 PWMGND2 PWML2 84 85 86 PWMVDD2 ...

Page 19: ... 1 10K C102 C104 0 1 TP187 R102 10K TP186 C124 R148 39 R146 39 1 2W 1 2W 0 47 R114 1 2K 390 R118 120nH L104 C108 220u50 C110 TP174 15uH L102 1 R110 1W C120 0 1 C122 3 3V HV TP173 C126 R122 1 5K 10K R126 R144 R143 10K 100P C140 R142 2K R124 3300P 47K R141 47K TP183 TP182 R202 10K C206 4 INB NC1 2 INA GND 3 1 5 OUTB 1 C230 7 6 8 NC8 OUTA VCC 33 R206 4 7 R208 C204 R204 0 1 0 1 10K C202 0 1 TP191 8 1 ...

Page 20: ...3 W7 1000P C135 1000P C138 1000P C137 C236 C237 1000P C235 W6 C238 1000P 1000P SW Q114 115 Q211 212 Q214 215 Q111 112 1000P 0 022 47K 0 022 47K 0 022 47K CAUTION For continued safety replace safety critical components only with manufacturer s recommended parts refer to parts list Indicates safety critical components To reduce the risk of electric shock leakage current or resistance measurements sh...

Page 21: ...80 470 R103 100P C105 C110 R29 0 01 47K B14V 1 GND FAN B 1 2 1 LOGO LED B14V 3 NC 2 0 01 LOGO LED 2 3 NC C112 C117 1 8 5 6 7 10u35 C11 100 R7 R19 2 7K R20 2 7K 7P C31 7P C32 1 8K R16 1 8K R15 10P C7 C4 10P C8 10u35 C12 100 R8 4 3 2 1 100P C16 100P C15 R18 2 7K 10u35 C10 R6 100 4 10P C6 3 2 1 10u35 100 C9 R5 8 1 8K R13 R14 1 8K C5 10P 6 5 C14 100P 100P C28 C27 7P 7P C13 R17 2 7K 7 10K R9 10K R10 10...

Page 22: ...5 N09 6217 05 N09 6447 05 N89 2606 48 N09 6446 05 N09 6457 05 J1 J4 J2 J3 S1 X08 4350 10 A 2 720 720 9 2 8 8 6 1 29 7 28 11 22 22 C C Fx2 G H H 715 727 32 33 10 17 G 716 716 713 723 Bx2 Jx2 Px2 744x3 Hx4 Hx5 Hx6 Hx3 Mx6 Hx2 Bx2 741 740 42 43 43 B B A 703 J J J L Ex2 Qx2 Ex2 F1x3 Hx2 Hx2 Dx3 Lx5 Kx10 E E E E J 733 X08 718 721 736 ED1 725 725 FC1 4 B B H H 734 714 742 H H H 738 717 719 Mx4 Mx4 744x2...

Page 23: ...CHIP C 10UF K C45 CK73GB1H104K CHIP C 0 10UF K C46 CK73FB0J106K CHIP C 10UF K C47 48 CC73GCH1H180J CHIP C 18PF J C49 CK73FB0J106K CHIP C 10UF K C50 52 CK73GB1H104K CHIP C 0 10UF K C53 54 CK73FB0J106K CHIP C 10UF K C55 56 CK73GB1H104K CHIP C 0 10UF K E1 KAC PS4D Europe K KAC X4R North America 1 1B A21 6574 11 DRESSING PANEL 2 1B A21 6578 01 DRESSING PANEL K 2 1B A21 6579 01 DRESSING PANEL E1 4 3B A...

Page 24: ... CC73GCH1H100D CHIP C 10PF D C334 CK73GB1H104K CHIP C 0 10UF K C335 337 CK73GB1H272K CHIP C 2700PF K C338 C92 1927 05 ELECTRO 220UF 6 3WV C339 340 CK73GB1H104K CHIP C 0 10UF K C341 CK73FB0J106K CHIP C 10UF K C342 CE32BJ0J470M CHIP EL 47UF 6 3WV C343 344 CK73GB1H104K CHIP C 0 10UF K C346 CK73GB1H103K CHIP C 0 010UF K C347 CK73FB0J106K CHIP C 10UF K C348 CK73GB1H103K CHIP C 0 010UF K C349 CK73FB0J10...

Page 25: ...K CHIP C 0 10UF K C625 CK73FB1C105K CHIP C 1 0UF K C626 628 C93 1174 05 CERAMIC 0 1UF 100WV C629 CK73ER2A474K CHIP C 0 47UF K C630 CK73ER2A333K CHIP C 0 033UF K C631 632 CK73GB1H472K CHIP C 4700PF K C633 CC73GCH1H101J CHIP C 100PF J C701 704 CC73GCH1H681J CHIP C 680PF J C705 708 CC73GCH1H471J CHIP C 470PF J C709 710 CK73GB1H104K CHIP C 0 10UF K C711 712 CC73GCH1H470J CHIP C 47PF J C713 715 CK73GB1...

Page 26: ...J CHIP R 10K J 1 10W R24 RK73GB2A392J CHIP R 3 9K J 1 10W R25 RK73GB2A121J CHIP R 120 J 1 10W R26 27 RK73GB2A103J CHIP R 10K J 1 10W R28 RK73GB2A4R7J CHIP R 4 7 J 1 10W R30 RK73GB2A103J CHIP R 10K J 1 10W R31 33 RK73GB2A121J CHIP R 120 J 1 10W R37 38 RK73GB2A000J CHIP R 0 0 J 1 10W R39 RK73GB2A121J CHIP R 120 J 1 10W R40 42 RK73GB2A000J CHIP R 0 0 J 1 10W R43 RK73GB2A121J CHIP R 120 J 1 10W R44 RK...

Page 27: ... J 1 10W R372 RK73GB2A103J CHIP R 10K J 1 10W R373 RK73GB2A104J CHIP R 100K J 1 10W R374 RK73GB2A103J CHIP R 10K J 1 10W R378 RK73EB2E100J CHIP R 10 J 1 4W R379 RK73EB2E331J CHIP R 330 J 1 4W R380 385 RK73GB2A103J CHIP R 10K J 1 10W R386 RK73EB2E000J CHIP R 0 0 J 1 4W R387 RK73EB2E1R0J CHIP R 1 0 J 1 4W R388 RK73GH2A103D CHIP R 10K D 1 10W R389 390 RK73EB2E1R0J CHIP R 1 0 J 1 4W R391 RK73GB2A101J ...

Page 28: ...RK73GB2A101J CHIP R 100 J 1 10W R617 619 RK73GB2A121J CHIP R 120 J 1 10W R620 RK73GB2A100J CHIP R 10 J 1 10W R621 RK73GB2A102J CHIP R 1 0K J 1 10W R622 624 RK73GB2A103J CHIP R 10K J 1 10W R625 R92 5163 05 CHIP R 0 047 F 1W R626 RK73GB2A103J CHIP R 10K J 1 10W R629 RK73GB2A121J CHIP R 120 J 1 10W R630 RK73GB2A000J CHIP R 0 0 J 1 10W R631 RK73GB2A103J CHIP R 10K J 1 10W R632 RK73GB2A101J CHIP R 100 ...

Page 29: ...00 J 1 10W R951 952 RK73GB2A473J CHIP R 47K J 1 10W R953 958 RK73GB2A432J CHIP R 4 3K J 1 10W R959 RK73GB2A103J CHIP R 10K J 1 10W R960 RK73GB2A222J CHIP R 2 2K J 1 10W R961 964 RK73GB2A473J CHIP R 47K J 1 10W R965 RK73GB2A103J CHIP R 10K J 1 10W R966 RK73GB2A392J CHIP R 3 9K J 1 10W R967 RK73GB2A132J CHIP R 1 3K J 1 10W R968 969 RK73GB2A100J CHIP R 10 J 1 10W R970 971 RK73GB2A103J CHIP R 10K J 1 ...

Page 30: ... IC801 802 NJM4580V ZB ANALOGUE IC IC804 CS5361 DZZR MOS IC IC900 78F0536GK011A MICROCONTROLLER IC IC901 TC7MBD3245AFK MOS IC IC902 BR24L04FV W ROM IC IC904 NJM4565V ZB ANALOGUE IC Q101 102 IRF9530NPBF FET Q103 104 IRF530NPBF FET Q105 108 2SA1163 F TRANSISTOR Q109 110 SSM3K7002FU F FET Q111 112 IRF7341PBF DUAL FET Q113 2SA1163 F TRANSISTOR Q114 115 IRF7341PBF DUAL FET Q116 2SA1163 F TRANSISTOR Q20...

Page 31: ...OR Q931 DTA144EUA DIGITAL TRANSISTOR TH1 6 NCP18XH103J0S THERMISTOR E1 KAC PS4D Europe K KAC X4R North America Indicates safety critical components Ref No A d d N e w Parts No Description Desti nation Ref No A d d N e w Parts No Description Desti nation PARTS LIST AUDIO UNIT X09 8620 10 ...

Page 32: ...24 12dB oct Low Range 30 250Hz High Range 500 5kHz Infrasonic Filter Frequency 24dB oct 20 30 40 50 60Hz Built in Parametric EQ Control Frequency BAND 1 25 40 60 80 100Hz Frequency BAND 2 150 200 300 400 500Hz Frequency BAND 3 600 800 1k 15k 2kHz Frequency BAND 4 3k 4k 5k 6 3kHz Frequency BAND 5 8k 10k 12 5k 16kHz Quality Factor BAND 1 BAND 3 1 0 2 0 3 0 5 0 Quality Factor BAND 4 BAND 5 2 0 4 0 8 ...