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Kenwood K-323, Service Manual, Page: 1 / 34

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Kenwood K-323 Service Manual Download Page 1

SERVICE MANUAL

This product uses Lead Free solder.

This product complies with the 

RoHS

 directive for the European market.

© 2009-6 CREATED IN JA PAN
B53-4067-00 (N/J) PDF

K-323

COMPACT Hi-Fi COMPONENT SYSTEM

DANGER:
Please do not look at the laser beam directly during 
re pair or operation check.

Window 

(B10-5662-08)

Grille Assy

(A60-2574-08) : S

(A60-2578-08) : BK

Case, Rear

(A80-4633-08)

Foot

(J02-1602-08)

Holder

(B07-2795-08) : S

(B07-2794-08) : BK

Case (R)

(A01-4811-08) : S

(A01-4810-08) : BK

Case (L)

(A01-4809-08) : S

(A01-4808-08) : BK

FRONT VIEW

TOP VIEW

S : 

Silver

BK : Black

Summary of Contents for K-323

Page 1: ... 323 COMPACT Hi Fi COMPONENT SYSTEM DANGER Please do not look at the laser beam directly during repair or operation check Window B10 5662 08 Grille Assy A60 2574 08 S A60 2578 08 BK Case Rear A80 4633 08 Foot J02 1602 08 Holder B07 2795 08 S B07 2794 08 BK Case R A01 4811 08 S A01 4810 08 BK Case L A01 4809 08 S A01 4808 08 BK FRONT VIEW TOP VIEW S Silver BK Black ...

Page 2: ...LIZE is displayed This unit is reset Resetting the system Manufactured under license from DTS Licensing Limited DTS is a registered trademark and the DTS logos Symbol and DTS Surround Sensation Speaker are trademarks of DTS Inc 1996 2008 DTS Inc All Rights Reserved The marking of products using lasers The marking this product has been classified as Class 1 It means that there is no danger of hazar...

Page 3: ...l components including the USB device and also take out the disc 2Press CDE and confirm that NO DISC is displayed 3Wait a while and then turn the system OFF 4If any other external component is connected make sure that it is turned OFF before disconnecting the connection cable Memory Backup Even when the power plug is unplugged from the mains outlet the setups of the unit are retained for about a d...

Page 4: ...NPUT INPUT FILTER RECTIFIER HIGH FREQUENCY INVERTER CONTROL CIRCUIT FL 4 3V OUTPUT RECTIFIER FILTER FILTER RECTIFIER 27V OUTPUT FILTER RECTIFIER 19V OUTPUT FILTER RECTIFIER 9V OUTPUT FILTER RECTIFIER 5 2V OUTPUT FILTER RECTIFIER 3 3VS OUTPUT CONTROL SIGNAL PWM COMP OSC REF OSC PWM REF COMP INVERTER HIGH FREQUENCY JK603 JK604 JK601 JK602 TN601 IC601 IC104 IC206 IC207 IC201 IC203 IC205 IC202 IC204 J...

Page 5: ... C30 C35 T1 C37 J8 R13 J5 C32 J9 C10 1 15 L4 C19 J22 J17 J3 C21 C13 R8 R15 R6 R5 R7 J2 C1 C20 C36 C3 C4 C2 2 1 R1 LF1 F1 VR1 J6 C5 T2 C17 C33 R38 J23 J16 J13 J10 L3 C31 R4 J25 J11 R35 J18 C16 R16 C22 TH1 C23 J19 C12 C29 C8 C7 R20 J7 R21 L5 C15 1 1 7 6 2 4 8 5 C18 R23 R24 R39 B E B E B E B E J12 R36 R2 C34 R34 R19 R18 R33 R32 J24 R31 R28 R30 RA4 R37 R11 R12 C24 RA5 R14 R26 R25 R17 C6 J4 E D C B A 1...

Page 6: ...4 R33 R35 R34 R69 L3 R68 C79 R123 R51 R47 R50 CT5 R21 L6 R2 R38 C77 C140 R44 L22 R59 C10 C24 C30 C31 C60 C84 C26 C27 C3 C37 C65 X2 C25 C19 C5 C66 C98 RA5 RA6 RA7 RA4 C45 C29 C81 C28 1 21 2 22 1 1 15 1 3 5 4 14 28 15 1 27 54 28 1 36 108 73 37 72 144 109 TP GPB15 TP GPB14 TP GPB12 SCIOTX SCIORX TP GPA3 TP GPA13 T56 T54 T53 AGND TKO FCO FCO LD MD AGND VR VF1 VT1 3V3 VT2 VF2 TP65 FE VREF T57 TKO F G H...

Page 7: ... C51 R154 R156 R152 R155 R6 R166 R75 R150 R149 R103 R102 R104 R67 R57 R114 R105 R127 R109 R128 R46 C114 C23 C21 C22 C47 C44 C121 C71 C63 C20 C55 C56 C138 C4 C113 C70 C11 C12 C16 C17 R87 R85 R56 C110 C104 C35 R99 L10 C83 R26 R25 R192 R190 C82 R28 R32 R14 R22 R185 R181 L8 R40 R180 R184 R24 R23 R188 R189 C116 C76 R119 R7 R3 R1 C109 C108 R66 R17 R121 C41 R169 C88 R82 R83 R175 L7 C36 C68 C7 C62 C1 C59 ...

Page 8: ...3 C665 C667 R660 C655 C657 C660 C661 R642 R649 C653 R648 R644 R645 FB604 C604 C603 FB603 C670 FB615 C610 C611 R662 R663 FB631 1 4 1 3 FB605 C606 L602 R615 R621 R619 R628 R657 R609 R656 R610 C621 FB614 C630 FB607 C614 C613 FB608 C625 C631 R640 FB616 R652 C671 R607 R606 R626 R605 R604 R655 R654 R653 C608 R603 R602 C668 C669 FB632 C672 R659 C632 C634 C633 C642 C643 C638 C641 C635 C627 C624 C626 C623 ...

Page 9: ...9 K 323 Refer to the schematic diagram for the values of resistors and capacitors AUDIO SIDE B Y X W V U 1 2 3 4 5 6 7 PC BOARD ...

Page 10: ...32 R131 R130 R129 R341 R218 R340 R227 R319 FB204 C215 C239 C234 C232 C228 C230 R338 C322 R174 R173 C144 FB109 FB110 C146 C147 C187 R175 R176 R199 C198 R163 C110 R167 R162 R166 C109 R164 R248 R247 R249 FB207 C269 R252 R253 FB215 C196 R231 C245 R232 C244 1 3 2 1 R233 C250 R234 C249 R320 C286 C254 R240 C255 C298 R251 C318 R345 R188 R332 R331 C326 C329 R273 R274 C331 C330 C280 R295 R279 R322 R294 R344...

Page 11: ...11 K 323 Refer to the schematic diagram for the values of resistors and capacitors MAIN SIDE B AI AH AG AF AE 1 2 3 4 5 6 7 PC BOARD ...

Page 12: ...R422 R423 R424 R431 R425 R426 R427 R428 R429 R430 R432 R433 R434 R435 R436 R437 R438 R439 R440 R441 R442 R443 R444 R445 R446 R447 R448 R449 R450 R451 R452 R453 R454 R455 R456 R457 R458 R459 R460 R461 C412 R408 R402 C407 C408 R405 C411 C402 R401 C401 C406 R411 R410 R403 R404 C415 C413 C410 R414 R412 54 1 1 VCC G VOUT 1 16 48 49 64 32 17 33 5 7 1 C404 C414 C409 C405 E B E B AJ AK AL AM AN 1 2 3 4 5 ...

Page 13: ... and capacitors CN501 KEY SIDE A SW506 SW507 SW504 SW502 SW508 SW503 SW505 SW501 KEY SIDE B C502 R501 R506 R507 R504 R502 R508 R503 VOLUME UP VOLUME DOWN STOP CD PLAY PAUSE INPUT SELECTOR CD EJECT R505 POWER USB PLAY PAUSE 1 4 C501 AS AR AQ AP AO 1 2 3 4 5 6 7 PC BOARD ...

Page 14: ...E DGND OE VCC GND OUT R121 10K C59 0 1 DGND nTRST TCK C98 0 1 D15 D14 D13 D12 D11 D10 R191 0 R25 10K R193 10K 0 R26 CAS RAS WR CLK CKE A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 C83 1 C82 1 BA1 BA0 DGND 10K 0 R14 R180 10K 0 R19 R183 R185 R22 10K 0 R23 10K R186 0 10K 0 R24 R189 R103 30 R57 R67 30 220 R127 200 390 R105 R104 200 R102 300 C31 10P C30 10P C24 10P C10 10P AGND LD1 LAS LD LAS 3 3 R109 R128 TK...

Page 15: ...DR A5 VDD18 4 VSS 5 VDD33 5 DR A4 DR A3 DR A2 DR A1 DR A0 DR WR DR CAS DR RAS DR CLKE DR CLK VSS 6 VDD33 6 DR D15 DR D14 DR D13 DR D12 GPB9 GPB10 GPB11 DR D11 DR D10 GND OUT DGND 0 R70 100 R75 TP GPA3 TP GPA13 R125 10K 470 R112 470 R49 10K 0 01 C114 C113 0 01 R111 DGND TP TP EJECT CRQ SCL SDA USB USB MON1 MON0 R173 4 7K SCIOTX SCIORX C105 1 1 C95 TDI TDO TMS DGND 1 C88 0 01 C26 0 01 CT1 0 01 33u25...

Page 16: ...DGND DGND DGND T DGND H GND AGND DGND AUDIO VIN VOUT GND AUDIO L18 0 1 C120 4 7 C121 C122 4 7 C124 4 7 C61 0 01 L10 C62 L12 0 1 C63 0 1 DGND AGND DGND L17 L1 C53 DGND 4 7 DGND C51 1 L5 C48 4 7 AGND C47 0 01 DGND L7 0 1 C36 DGND 4 7 C52 DGND C46 1 0 1 C37 L6 L4 10K R15 R66 10K DGND AGND USB USB C68 1000P R84 24 9K C66 1000P C85 1000P AGND MD LAS LD1 LAS LD LAS C67 0 033 0 1 C75 C76 1 AGND DGND C138...

Page 17: ...CTRL OUT R IN L IN Rch Lch FB610 0 FB607 FB608 2200P C613 R609 10K 10K R610 2200P C614 47 R657 47 R656 Rch FB613 10K C618 0 2200P R613 2200P C617 R612 10K Lch FB612 FB611 C671 0 1 220u16 C615 220u16 C616 R629 10K 220K R652 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 AGND HP R IN AGND HP L IN HP SELECT OUT REC R IN AGND REC L IN AGND AGND 4052 R OUT AGN...

Page 18: ... CD SDA CD CRQ DGND MCLK BCLK SDO LRCK EM EJT AGND CD R OUT AGND CD L OUT CD INSERT CD RESET 3 3V M GND CD 9V CD 9V HP R HP SELECT HP L REC R REC L A B T SDA T SCL TST RCLK TUNED RDATA R189 0 0 R182 A MUTE 4 7K R187 1K R191 0 01 C194 1M 4 7K R190 R193 SCL SDA CRQ EM EJT RST R183 TP4 TP5 1K R186 220u16 C164 C162 0 1 C185 0 1 0 1 C161 C165 0 1 SPI I O CONTROL INTERFACE ROM RAM PRECSION 10 46 DOUBLE ...

Page 19: ... 100 R277 0 1 C280 10K R278 C281 0 1 R295 100 R331 100K R279 100 TP3 100 100 KEY1 KEY2 R294 R322 R323 10K R296 10K 100u35 C276 150 R344 10P C317 C288 0 1 0 1 C296 R318 100 R317 100 R316 1K R314 1K R312 100 R310 100 R305 100 100 R308 A B A MUTE T SDA TUNED T SCL CLK DATA SDA SCL EM EJT R337 10K 10K R336 R309 R313 100 R307 R306 10K R326 10K R325 10K R328 100 100 R311 18 R2 R2 R2 R2 C C S S R2 1 1K R...

Page 20: ... L205 C286 R319 C287 18 330P R320 18 0 1 C230 100u35 C229 R342 150 C306 5P 150 5P R343 C316 C248 1 C246 1 330P C250 C249 R233 3 3 0 01 0 01 R234 3 3 C247 0 47 C242 1 R231 3 3 C243 1 C245 C244 0 01 0 01 R232 3 3 C241 0 47 2 1 L L 1K R227 0 1 C223 R228 C217 C216 4700P 0 047 470 470 0 047 C221 C222 4700P R229 0 1 100u35 C226 C267 0 1 10u16 C225 C224 AVSS R230 0 FB204 100u35 VIN VOUT GND C255 0 1 R250...

Page 21: ...C31 1u50 C17 1K R34 R18 1 15K R33 180 R35 10u50 C19 1K 100 1W R21 0 1u50 180 C10 220u16 3K R30 15uH R28 1K C12 R25 1K R26 220u16 C29 L4 470 R31 100K R32 C18 1 10K R37 R23 3 3K T1 C13 1 5M R6 1 5M R15 1W 1 2W 1 2W C21 100P 2200P R8 68K 47 R11 47u50 C7 47u50 C8 6 8 R12 R17 5 1K 150u450 C1 470P C22 100P C16 1W R16 200K 1K R14 C5 2200P C24 0 1 5 1K R24 1M C4 1000P 1000P C3 C36 0 1u275 C2 0 22u275 R1 2...

Page 22: ...4 8V START SOFT 8V SHUTDOWN AUTO RESTART SHUTDOWN THERMAL HYSTERETIC INTERNAL SUPPLY 5 1 2 3 4 7 6 D NC F S X L C LINE UNDER VOLTAGE K 323 4 5 AS AR AQ AP AO 1 2 3 4 5 6 7 CAUTION For continued safety replace safety critical components only with manufacturer s recommended parts refer to parts list indicates safety critical components For continued protection against risk of fire replace only with ...

Page 23: ... 6 8K 1K 47u16 0 1 C502 C501 B B 4V 4V 27V 27V 3 3V 3 3V 1 3 3V 2 VFD VFD VFD 330 R412 IC401 RMC401 KEY FRONT K 323 5 5 1 7 2 7 3 7 1G 11G 4 7 5 7 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G 11G 12G 1 6 2 6 3 6 4 6 5 6 1 5 2 5 3 5 4 5 5 5 1 4 2 4 3 4 4 4 5 4 1 3 2 3 3 3 4 3 5 3 1 2 2 2 3 2 4 2 5 2 1 1 2 1 3 1 4 1 5 1 ANODE CONNECTION P36 5 7 P35 4 7 P34 3 7 P33 2 7 P32 1 7 P31 5 6 P30 4 6 P29 3 6 P28 2 6 P27 1...

Page 24: ...6 φ2x8 φ2x2 5 K 323 2 71x2 ABx2 ABx2 AA 845 46 808 80 893 820 816 32 90 23 3 12 861 11 2 12 813 77 130 848 804 805 861 11 37 50 10 44 879 827 806 91 22 825 26 33 102 859 847 49 101 DM 35 815 809 892 52 807 801 814 78 824 LFM 86 87 88 89 21 76 75 842 43 28 81 PU 874 110 51 AF AJ ACx2 AH AF AE AG AD EXPLODED VIEW CD MECHANISM Parts with the exploded numbers larger than 700 are not supplied ...

Page 25: ... 783x2 Kx3 Kx2 Kx2 Kx2 Kx2 Kx2 Kx2 Dx2 669x2 630x2 610x2 Gx3 773x2 E Fx3 A Bx2 Kx3 Kx3 E Fx3 Hx2 Hx2 G G Hx2 Hx2 Hx2 Hx6 Gx2 Gx2 Gx2 Gx2 Hx2 Hx2 Hx2 Hx2 Gx5 Gx5 Hx2 Hx2 Hx2 Gx2 Gx2 Gx2 Gx3 G G H 723 CD PCB 749 765 E TYPE X TYPE 777 778 KEY PCB H D G G 775 772x8 774 767 741 740 738 774 717 763 775 774 737 722 791 AUDIO PCB H D 792 639 768 763 764 790 788 789 779 763 763 764 723 655 656 634 609 656 ...

Page 26: ...1E E35 4096 08 CN WIRE L000141020160S 681 1C E30 7418 08 CORD ASSY L068250251800S E 681 1C E30 7419 08 CORD ASSY L068250751800S X 682 1C T90 0938 08 ANTENNA WIRE E605010070001S 684 1C A70 1748 08 REMOCON 8300071500020S 685 1C T90 0937 08 ANTENNA LOOP E601016000010S A N09 5640 08 SCREW 1500210296000S BK B N09 5641 08 SCREW 1500210256000S S C N89 2004 48 SCREW TAP TITE B020020043B10S D N89 3008 48 S...

Page 27: ...F 16WV C226 C90 5909 08 CHIP EL 100UF 35WV C227 C90 5910 08 CHIP C 0 22UF K C228 C90 5908 08 CHIP C 1 0UF Z C229 C90 5909 08 CHIP EL 100UF 35WV C230 CK73GB1H104K CHIP C 0 10UF K C231 C90 5910 08 CHIP C 0 22UF K C232 C90 5908 08 CHIP C 1 0UF Z C233 C90 5910 08 CHIP C 0 22UF K C234 C90 5908 08 CHIP C 1 0UF Z C235 C90 5910 08 CHIP C 0 22UF K C236 CK73GB1H104K CHIP C 0 10UF K C237 C90 5911 08 CHIP EL ...

Page 28: ...0K J 1 10W R133 RK73GB2A333J CHIP R 33K J 1 10W R134 RK73GB2A623J CHIP R 62K J 1 10W R135 RK73GB2A154J CHIP R 150K J 1 10W R149 150 RK73GB2A102J CHIP R 1 0K J 1 10W R151 RK73GB2A473J CHIP R 47K J 1 10W R153 L92 0891 08 COIL BEAD D340160801020S R156 161 L92 0891 08 COIL BEAD D340160801020S R162 163 RK73GB2A472J CHIP R 4 7K J 1 10W R168 L92 0891 08 COIL BEAD D340160801020S R170 L92 0891 08 COIL BEAD...

Page 29: ...010S IC201 AD71094 IC AUDIO PROCES J085194100010S IC202 CS4352 CZZR IC LOGIC D A J042435200010S IC203 TAS5706APAPR IC LINEAR POWER J122570600010S IC204 TPA6111A2DR IC LINEAR OP J121611120010S IC205 CS4344 CZZR IC LOGIC D A J042434400020S IC206 PIC18F6710 IC CPU 8952UK3230010 IC207 M24C02 MN6T IC MEMORY EEP J000240200100S IC301 KIA378R00PI IC LINEAR REGU J126780050030S IC302 KIA78R33PI IC LINEAR RE...

Page 30: ...73GB2A563J CHIP R 56K J 1 10W R647 RK73GB2A224J CHIP R 220K J 1 10W R648 RK73GB2A102J CHIP R 1 0K J 1 10W R649 RK73GB2A912J CHIP R 9 1K J 1 10W R650 651 RK73GB2A102J CHIP R 1 0K J 1 10W R652 RK73GB2A224J CHIP R 220K J 1 10W R653 L92 0889 08 COIL BEAD D340160821020S R654 655 RK73GB2A103J CHIP R 10K J 1 10W R656 657 RK73GB2A470J CHIP R 47 J 1 10W R658 RK73GB2A000J CHIP R 0 0 J 1 10W R659 RK73GB2A102...

Page 31: ... 0K J 1 10W R36 RK73GB2A101J CHIP R 100 J 1 10W R38 RK73GB2A470J CHIP R 47 J 1 10W R40 RK73GB2A101J CHIP R 100 J 1 10W R41 RK73GB2A000J CHIP R 0 0 J 1 10W R46 RK73GB2A101J CHIP R 100 J 1 10W R48 49 RK73GB2A103J CHIP R 10K J 1 10W R54 RK73GB2A101J CHIP R 100 J 1 10W R55 RK73GB2A102J CHIP R 1 0K J 1 10W R57 RK73GB2A300J CHIP R 30 J 1 10W R61 RK73GB2A000J CHIP R 0 0 J 1 10W R62 64 RK73GB2A103J CHIP R...

Page 32: ...R92 4759 08 RS 1M J 1W R6 R92 4757 08 RD 1 5M J 1 2W R7 R92 4762 08 RS 1M J 1W R8 R92 4758 08 RS 68K J 1W R11 RK73FB2B470J CHIP R 47 J 1 8W R12 RK73FB2B6R8J CHIP R 6 8 J 1 8W R13 R92 4755 08 RD 6 2K J 1 2W R14 RK73FB2B102J CHIP R 1 0K J 1 8W R15 R92 4763 08 RD 1 5M J 1 2W R16 R92 4760 08 RS 200K J 1W R17 RK73FB2B512J CHIP R 5 1K J 1 8W R18 RK73FB2B102J CHIP R 1 0K J 1 8W R19 R92 4750 08 CHIP R 43 ...

Page 33: ...0190 50 2A D13 2675 08 LINK GEAR L 8952CD0000200 51 2A D13 2676 08 LINK GEAR R 8952CD0000210 52 2A G01 4407 08 LINK GEAR SPR 8952CD0000220 101 1B J11 0913 08 CLAMPER ASSY 8952CD0000480 102 3A D19 0339 08 FEED SCREW ASSY 8952CD0000490 110 2A D21 2970 08 ROLLER SHAFT AS 8952CD0000500 130 2A N19 1570 08 HL WASHER 8952CD0000450 AA N09 5645 08 COLLAR SCREW 8952CD0000240 AB N89 2003 43 C TITE 8952CD0000...

Page 34: ...A Converter 1 bit Oversampling 8 fs 352 8 kHz USB section Compatible USB devices USB mass storage class devices Interface USB 2 0 Full speed USB 1 1 compatible Compatible file system FAT 16 32 Maximum supply current 500 mA Digital section Compatible sampling frequencies 32k 44 1k 48k Hz Input connectors Sensitivity Wavelength Optical 15 dbm to 24 dbm 660 nm 30 nm Speakers section Enclosure Bass re...

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