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Kenwood K-323 Service Manual
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Kenwood K-323 Service Manual

Compact hi-fi component system
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COMPACT Hi-Fi COMPONENT SYSTEM
K-323
SERVICE MANUAL
FRONT VIEW
TOP VIEW
S
: Silver
BK : Black
DANGER:
Please do not look at the laser beam directly during
re pair or operation check.
Window
(B10-5662-08)
Case (L)
Holder
(A01-4809-08) : S
(B07-2795-08) : S
(A01-4808-08) : BK
(B07-2794-08) : BK
© 2009-6 CREATED IN JA PAN
B53-4067-00 ( N/J ) PDF
Grille Assy
(A60-2574-08) : S
(A60-2578-08) : BK
Case (R)
(A01-4811-08) : S
(A01-4810-08) : BK
This product uses Lead Free solder.
RoHS
This product complies with the
Foot
(J02-1602-08)
Case, Rear
(A80-4633-08)
directive for the European market.

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  • Page 1 COMPACT Hi-Fi COMPONENT SYSTEM K-323 SERVICE MANUAL © 2009-6 CREATED IN JA PAN B53-4067-00 ( N/J ) PDF FRONT VIEW Grille Assy Window (A60-2574-08) : S (B10-5662-08) (A60-2578-08) : BK Foot (J02-1602-08) TOP VIEW Case, Rear (A80-4633-08) Case (L) Holder...

  • Page 2: Accessories / Cautions

    K-323 ACCESSORIES / CAUTIONS Accessories Remote control unit (RC-F0715E x 1) (A70-1748-08) FM indoor antenna AM loop antenna Power cords (2 types) (x 1) (x 1) (T90-0938-08) (T90-0937-08) Remote control batteries (LR03 (AAA) x 2) (–) For Europe For Australia...

  • Page 3: External View

    K-323 CAUTIONS / EXTERNAL VIEW Caution for Transport or Movement How to confi rm μ-com version 1. Turn Power ON. Before transporting or moving the system, prepare it as described below. 2. Press the [STOP] key of a unit, and the [1] key of a re- 1 Disconnect the external components including the mote simultaneously.

  • Page 4: Block Diagram

    K-323 BLOCK DIAGRAM IC105 MCLK JK603 IC201 IC203 SPDIF SPDIF0 MCLK PWM1+ DIGITAL AUDIO RECEIVER (OPTICAL) DIR I2S DOUT SPDIF1 D-CLASS CS8416(CIRRUS LOGIC) SDATA IN0 PWM1- MCLK LRCK0 JK604 LC OUTPUT LRCK1 20W x 2cH BCK0 FILTER for BCK1 CD BLOCK...
  • Page 5 K-323 PC BOARD SMPS Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 6 K-323 PC BOARD CD (SIDE A) TKO- TKO+ FCO+ FCO- AGND AGND FE VREF TP65 C140 IC15 TP GPA3 TP GPA13 R173 TP GPB15 TP GPB14 TP GPB12 R123 SCIOTX IC14 SCIORX Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 7 K-323 PC BOARD CD (SIDE B) R103 R102 R114 R104 R105 R127 R166 R154 C138 R156 R150 R152 R125 R149 R155 C121 TP MON0 R178 R120 R111 C113 R112 C120 R124 C114 TP MON1 C105 IC12 R113 R194 R110 R183...

  • Page 8: Audio (Side A)

    K-323 PC BOARD AUDIO (SIDE A) R634 R636 C632 R632 C634 C650 FB601 R639 C601 R641 C636 R638 R637 JK601 C651 C635 R633 C631 FB602 R635 R640 FB616 C602 Q604 R659 C615 C649 FB613 FB611 Q603 C617 R612 C616 R613...

  • Page 9: Audio (Side B)

    K-323 PC BOARD AUDIO (SIDE B) Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 10 K-323 PC BOARD FB208 CP101 MAIN (SIDE A) C191 R195 C165 C192 CP207 R196 R197 FB211 C189 Q120 FB212 R198 R187 C190 C303 R190 C193 C186 R165 C135 C327 R174 R175 R173 R176 OSC101 C177 C136 C140 C144 R199 C198...
  • Page 11 K-323 PC BOARD MAIN (SIDE B) Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 12 K-323 PC BOARD FRONT (SIDE A) FRONT (SIDE B) CN401 FL401 R413 R415 R416 R417 R418 R419 R420 C412 R421 R422 R408 R423 R402 R424 C407 C408 R405 C411 R425 C402 R426 R401 C401 R427 R428 R429 R430 R431 R432...
  • Page 13 K-323 PC BOARD KEY (SIDE A) KEY (SIDE B) SW506 C502 VOLUME UP SW507 VOLUME DOWN SW504 STOP SW502 USB PLAY/PAUSE SW508 CD PLAY/PAUSE SW503 INPUT SELECTOR SW505 CD EJECT SW501 POWER R501 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 14 K-323 MECHA C002 HDU-110 C003 +3.3VA +1.8VD +3.3VD 13 12 10 9 CN001 48MHz (OSC) FOCUS TRACKING COIL COIL 15 14 C31 10P AGND C30 10P R105 C24 10P 330P C10 10P DGND AGND AGND +3.3VA JT CK +3.3VD nTRST...
  • Page 15 K-323 : M25P20-VMN6P Q6 : 2N3906S : SMD5032 Q7 : 2N7002 : STA1052Z1 Q8 : 2N3904S(ZC) IC12 : LM1117S-1.8V IC14 : IC42S16400F IC15 : SA5810 +3.3VA +3.3VA +3.3V AUDIO +3.3V AUDIO +1.8VD +1.8VD +3.3VD +3.3VD OSC) DGND 33u25 C114 0.01 0.01...
  • Page 16 MGND GND (GRN) R17 100 STOP HOME RESETSW (GRN) R18 100 SW EJECT SW2 (WHT) R46 100 SW1 (RED) +3.3VD GND (BRN) DGND 1000P 0.01 1000P 1000P DGND H DGND T DGND DGND AGND DGND AUDIO K-323 (1/5) CD (3/3)
  • Page 17 Q606 R658 R660 K-323 (2/5) CAUTION: For continued safety, replace safety critical components only with manufacturer’s recommended parts (refer to parts list). indicates safe- ty critical components. For continued protection against risk of fi re, replace only with same type and rating fuse(s). To reduce the risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
  • Page 18 K-323 MAIN +3.3V-6 Q201 +3.3V-5 IC201 VCLK OUT1 LRCK OUT1 ODVDD R203 MCLK MCLK SDATA OUT3 RESERVED R327 SDATA OUT2 R201 PLL CTRL0 VOLTAGE R260 28 x 28 REGULATOR SDATA OUT1 CTRL1 PLL CTRL1 DSP CORE R211 R212 SERIAL SDATA OUT0...
  • Page 19 K-323 +3.3V-2 C284 10u16 IC205 C285 R285 SWITCHED SDIN 0.01 AOUTR INTERPOLATION MULTIBIT CAPACITOR DE-EMPHASIS FILTER MODULATOR DAC and R267 FB210 DEM/ FILTER DAC BCK TASPD SCLK SERIAL SWITCHED R281 AOUTL AUDIO SERIAL INTERPOLATION MULTIBIT CAPACITOR DAC LRCK LRCK INPUT...
  • Page 20 +20.7V PVDD20(+20.7V) FB208 PVDD20(+20.7V) DGND PWR-CTRL OUT +3.3V +3.3V AGND FB215 DGND AO GND K-323 (3/5) 1 2 3 PN2011 MAIN IC104 : PCM1808 IC205 : CS4344-CZZR Q104-110 : KRC110S D101 1SR154-400 RECORDING LINE IC105 : CS8416-CZZR IC206 : PIC18F6710...
  • Page 21 K-323 : TNY274PN : TOP247YN : MBRF20150CT SHUNT REGULATOR/ U3,7 : FAN431 ERROR AMPLIFIER U4,6 : KRC102S-P D1,14 : 1N4007 : SR306-60 VI (LIMIT : SR506 CURRENT : UF4007-1 SOFT LIMIT START : 1N4937-1 ADJUST D9,10 : FR107 : SR106...
  • Page 22 The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The measurement value may vary depending on the measuring instruments used or on the product. K-323 (4/5) SMPS (2/2)
  • Page 23 P31 5-6 P32 1-7 P33 2-7 P34 3-7 IC401 : PT6302LQ-003 P35 4-7 CN501 P36 5-7 MVCC33(+3.3V) RMC401 : W02-4713-08 SW501 SW505 MAIN- K-323 (5/5) CP208 Q401,402 KTC3875Y-1 ADKEY1 AI-4 ADKEY2 POWER CD EJECT LD401 B30-2734-08 SW502 SW506 FL401 HNA-12SN11T...

  • Page 24: Exploded View (Cd Mechanism)

    K-323 EXPLODED VIEW (CD MECHANISM) N09-5645-08 N89-2003-43 φ 1.7x1.8 N09-5646-08 φ N09-5647-08 φ 1.7x5 N09-5648-08 φ N09-5649-08 φ N09-5650-08 φ N09-5651-08 φ 2x2.5 N09-5652-08 φ 88 89 K-323 Parts with the exploded numbers larger than 700 are not supplied.
  • Page 25 JK606 N09-5640-08 INPUT φ3x10(F)BLK SELECTOR N09-5641-08 φ3x10(F) SW503 AUX IN N89-2004-48 φ2x4 JK601 CD EJECT N89-3008-48 AUDIO φ3x8 SW505 N09-5642-08 φ3x8(F)BLK TN601 N09-5643-08 φ3x8(F) POWER N89-3008-43 ANTENNA φ3x8(BLK) SW501 N89-3010-43 φ3x10(BLK) N89-3018-48 φ3x18 N09-5644-08 φ3x12(BLK) MAIN PCB FRONT SMPS K-323...
  • Page 26 Add- Desti- Parts No. Description Parts No. Description Ref. No. ress Parts nation ress Parts nation marks marks K-323-S/-BK ELECTRIC PARTS (FRONT) B60-5795-08 INST. MANUAL (E) 5707000002050S C401 C90-5900-08 CHIP C 47PF ✽ ✽ B60-5796-08 INST. MANUAL (5) 5707000002360S C402,403...
  • Page 27 ✽ New parts ✽ New parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 28 ✽ New parts ✽ New parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 29 ✽ New parts ✽ New parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 30 ✽ New parts ✽ New parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 31 ✽ New parts ✽ New parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 32 ✽ New parts ✽ New parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 33 ✽ New parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Add- Desti- Ref. No. Parts No. Description ress Parts nation marks S79-0049-08 MODE SWITCH 8952CD0000170...

  • Page 34: Specifications

    K-323 SPECIFICATIONS [Amplifi er section] [Speakers section] Rated power Enclosure …………………………… Bass refl ex system Output power ……… 20 W + 20 W RMS (1 kHz, 10 W, 8 Ω) Speakers …………………………………80 mm cone type Total harmonic distortion ………………………… 0.05 % Impedance ……………………………………………...

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