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Kenwood KDC-MP208 Service Manual
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Kenwood KDC-MP208 Service Manual

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Download this manual See also: Training Manual, Instruction Manual
CD RECEIVER
KDC-MP208/MP238
KDC-MP238CR/MP239
KDC-MP3039/MP339
KDC-MP339S/MP439
SERVICE MANUAL
Panel assy
KDC-MP208 (A64-4275-02)
Panel assy
KDC-MP238CR (A64-4274-02)
Panel assy
KDC-MP3039 (A64-4283-02)
Panel assy
KDC-MP439 (A64-4281-02)
Mounting hardware assy
(J21-9716-03)
Screw (4x16)
(N84-4016-48)
* Depends on the model. Refer to the parts list.
KDC-MP208
KDC-MP238CR
KDC-MP3039
KDC-MP439
* Carrying case
* Plastic cabinet assy
(W01-xxxx-xx)
(A02-2736-03)
Screw set
Lever
(N99-1757-05)
(D10-4589-04) x2
© 2007-9 PRINTED IN JA PAN
B53-0575-00 ( N ) 373
Panel assy
KDC-MP238 (A64-4273-02)
Panel assy
KDC-MP239 (A64-4282-02)
Panel assy
KDC-MP339 (A64-4284-02)
KDC-MP339S (A64-4285-02)
TDF SPARE-PANEL
MAIN UNIT NAME
TDF PARTS No.
KDC-MP208
Y33-2830-62
KDC-MP238
Y33-2830-60
KDC-MP238CR
Y33-2830-61
KDC-MP239
Y33-2820-61
KDC-MP3039
Y33-2820-62
KDC-MP339
Y33-2820-63
KDC-MP339S
Y33-2820-64
KDC-MP439
Y33-2820-60
* Remote controller assy (RC-xxx)
(A70-xxxx-xx)
* Escutcheon
(B07-xxxx-xx)
This product uses Lead Free solder.
RoHS
This product complies with the
KDC-MP238
KDC-MP239
KDC-MP339
TDF NAME
TDF-MP82DT
TDF-MP82D
TDF-MP82DCR
TDF-MP239
TDF-MP3039
TDF-MP339
TDF-MP339S
TDF-MP439
Battery
(Not supplied)
DC cord
(E30-6415-15)
directive for the European market.

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Summary of Contents for Kenwood KDC-MP208

  • Page 1 CD RECEIVER KDC-MP208/MP238 KDC-MP238CR/MP239 KDC-MP3039/MP339 KDC-MP339S/MP439 SERVICE MANUAL © 2007-9 PRINTED IN JA PAN B53-0575-00 ( N ) 373 Panel assy Panel assy KDC-MP208 (A64-4275-02) KDC-MP238 (A64-4273-02) KDC-MP208 KDC-MP238 Panel assy Panel assy KDC-MP238CR (A64-4274-02) KDC-MP239 (A64-4282-02) KDC-MP238CR KDC-MP239 Panel assy...

  • Page 2: Block Diagram

    KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 BLOCK DIAGRAM ELECTRIC UNIT (X34- ) Q901-903 ANT. DME1 DC-DET AM+B LX-BUS R103 TUNER FRONT-END MECHA PHONE PHONE SERVO+B POWER Q101 ACC-DET ACC DET Q401 ANALOG Q103 CONT BU-DET BU DET Q102 DC-CN Q701-704 CN4,J5 MUTE SURGE- E-VOL...
  • Page 3 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 COMPONENTS DESCRIPTION ● ELECTRIC UNIT (X34-564x-xx) Ref. No. Application / Function Operation / Condition / Compatibility System µ-COM Controls FM/AM tuner, the changer, CD mechanism, panel, volume and tone. E-VOL Controls the source, volume and tone. Power Supply IC Outputs 5Vx2, 8.1Vx2, 10.2V, P-CON and P-ANT.
  • Page 4 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 COMPONENTS DESCRIPTION Ref. No. Application / Function Operation / Condition / Compatibility D1.5V REG. Power supply for digital 1.5V. D3.3V REG. Power supply for digital 3.3V. IC11 BU1.5V REG. Power supply for back-up 1.5V. APC (Auto Power Control) Drives LD (Laser Diode).
  • Page 5 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 MICROCOMPUTER’S TERMINAL DESCRIPTION ● SYSTEM µ-COM: IC1 on X34- (ELECTRIC UNIT) Truth Value Pin No. Pin Name Application Processing Operation Description Table LX DATA M I/O Data to slave unit Pull-down (GND) LX CLK I/O LX-BUS clock 125k~65kHz Not used Output L fi...
  • Page 6 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Pin No. Pin Name Application Processing Operation Description Table PON CD CD mechanism power supply control H: Power ON CD LOEJ I/O CD motor control Refer to the truth value table CD MOTOR...
  • Page 7 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Pin No. Pin Name Application Processing Operation Description Table TYPE2 Destination switching Refer to the truth value table If DC offset is found 20 times in 100ms with condition PWIC DC DET DC offset detection of over 1.0V, it will be judged as DC offset detected.

  • Page 8: Test Mode

    KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 TEST MODE ■ Example Description of display Description Disc EJECT times display. MAX 65535 (times) Disc EJECT times display While disc EJECT times is displayed, press and hold for 2 ■5 seconds or longer to clear disc EJECT times.
  • Page 9 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 TEST MODE ■ Special displays when all lights are on in STANDBY source Description of display Description Common All lights ON. All lights ON. Destination terminal “TYPE” indicates system µ-com (IC1) destination, and shows E : 1 condition indication real-time condition of the destination terminal.
  • Page 10 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 TEST MODE • CD information display mode Description of display Description Mechanism error log 1 (Latest) 1 : X XX: Error number. “– –” is displayed in case there is no error. CD mecha- Mechanism error log 2 (Latest)
  • Page 11 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 TEST MODE ■ Test mode specifi cations in TUNER source Error is found in front-end (A1), etc. if indications below is displayed while in tuner source. Status Display Description Front-end (A1) E2PROM data error Front-end (A1) E2PROM is still the default (unspecifi ed) value.
  • Page 12 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 TEST MODE ■ Test mode specifi cations in CD source Display mode default: P-Time • Procedure in CD-DA media (KTD-02A) Description of display Description Every time pressed, jumps to the track shown below. No.9 → No.15 → No.10 → No.11 → No.12 → No.13 →...
  • Page 13 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 TEST MODE ■ MENU-related test mode Procedure Note Press the [B.BOOST] key (main unit) Continuous forwarding by remote control is prohibited Press the [DNPP/SBF] and [DIRECT] keys (Remote control) ■ Backup current measurement Procedure Note MUTE terminal is OFF after 2 seconds, not after 15 seconds.
  • Page 14 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 TEST MODE ■ Clearing DC offset error detection data (E2PROM data clearing) Procedure Note While pressing and holding [3] key and [6] key, reset-start. Entering DC offset error display mode. Procedure Display Description When DC offset error is detected (when either one of capacitors is...
  • Page 15 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 TEST MODE • How to register the security code on the “Car Audio Passport” after replacement of the FRONT-END (A1) with E2PROM (KDC-MP439 only) Procedure Description While pressing and holding [1] key and [3] key, reset-start Enters the test mode Press the [B.BOOST] key...
  • Page 16 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 ROM DATA TRANSFER PROCESSES ■ Operation procedure When replacing front-end (A1) of mother unit (X34-), or when adding or replacing ROM correction (program correction with Operation procedure is different depending on the conditions. ROM IC (IC10)), the following activities are required.
  • Page 17 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 ROM DATA TRANSFER PROCESSES Turn power on. Install new front-end (A1). Press and hold the [1] and [3] keys and press reset button. No ROM correction or other data status. (Enter the system in the test mode.) Press [B.BOOST] key. (ROM data System enters data transfer mode.)
  • Page 18 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 ROM DATA TRANSFER PROCESSES 4. In case of applying a new ROM correction when front-end Turn power on. (A1) is replaced (There is ROM correction data.) Press and hold the [1] and [3] keys, press reset button. (Enter 5.
  • Page 19 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 ROM DATA TRANSFER PROCESSES Press key. (Exit ROM data transfer mode.) Turn power on. Turn power off. Press and hold the [1] and [3] keys press reset button. (Enter the system in the test mode.) Remove front-end (A1).
  • Page 20 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X34-564x-xx (J76-0457-02) W807 W100 W806 W805 R101 W102 W803 R102 W902 R910 R908 D103 Q901 R905 R106 R903 R901 R107 R801 D105 D901 W812 R108 D803 C902 C901 R803 C102 D106...
  • Page 21 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 6 10 9 R604 X34-564x-xx Q701 Q702 Ref. No. Address C603 R710 R712 R803 C706 Q704 Q703 C705 W701 R492 C405 R793 W973 R491 R493 Q101 R404 R405 Q102 Q103 Q104 IC10 Q105 Q301 Q401 Q402 Q701 Q702...
  • Page 22 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 PC BOARD (COMPONENT SIDE VIEW) CD PLAYER UNIT X32-5970-02 (J76-0443-02) R219 C103 R220 C100 R223 Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 23 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 PC BOARD (FOIL SIDE VIEW) CD PLAYER UNIT X32-5970-02 (J76-0443-02) FCS+ FCS- AGND C102 R248 R240 DGND D3.3V IC11 R243 IOP- VREF 8EJE SW R232 AD3.3V IOP+ AGCI SPDL+ SPDL- SBAD A3.3V C101 DGND GPIN ZDET R233 /CCE...
  • Page 24 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 PC BOARD (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) SWITCH UNIT SWITCH UNIT X16-617x-xx (J76-0455-02) X16-617x-xx (J76-0455-02) CP11 CP12 PAN5V X16-617x-xx X16-617x-xx Ref. No. Address Ref. No. Address Refer to the sche- matic diagram for the values of resis-...
  • Page 25 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 ELECTRIC UNIT (X34-564x-xx) REQ S TP98 R606 1K ELECTRIC DISCHARGE MUTE TP95 R609 100 CIRCUIT for C805 (SVR) R607 1K 14.4V DATA S TP97 Q801 R605 100 TP99 R608 100 DATA M TP96 C807 R610 4.7K TP94 DC OFFSET TP903 7.3V...
  • Page 26 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 TP315 C819 C820 7.3V 3.3V 0.6V TP316 7.3V BU5V R229 TP432 100K R223 2.2 5.0V 5.0V R598 5.0V R599 RESET IC R201 LX DATA M 0 or 1.6 or 2.5 or LX CLK 3.4 or 5.0V R202 100K 1.6V...
  • Page 27 CONTROL SW for IC4 D106-108,304-306, VFD+B slight ly due to vari a - 601-606 : MTZJ6.8(B) D110 : BAV70W tions between in di - SIGNAL LINE vid u al in stru ments or/ KDC-MP208/MP238/MP238CR/MP239/MP3039/MP339/MP339S/MP439 (1/2) GND LINE and units. B LINE X34-564x-xx (3/3)
  • Page 28 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 ANODE CONNECTION 3GA,3GB 1GA,1GB NAME (3G-1G) (1G) col (Downside) SWITCH UNIT (X16-617x-xx) Upside Downside col (Upside) REMOTE CONTROL SENSOR R78 1K 11.3V TP41 TP42 TP43 TP44 TP45 TP31 ILL D GND TP30 11.3V PAN5V TP29 VFD DRIVER LED+B...
  • Page 29 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 DTC114YUA 2SA1576A SWITCH UNIT (X16-617x-xx) DESTI- UNIT D10,11, R61, MODEL NAME D1,2,9,23 D3-8 D12,19 13-18,21 NATION E232/S J/J1 0-01 B30-1781-05 B30-1782-05 B30-1782-05 KDC-MP208 0-11 B30-1779-05 B30-1779-05 B30-1566-05 KDC-MP238 0-10 B30-1781-05 B30-1779-05 B30-1566-05 KDC-MP238CR 0-11 B30-1779-05 B30-1779-05 B30-1566-05 2SC4081...
  • Page 30 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 CD PLAYER UNIT (X32-597x-xx) 3.7V 3.8V 3.5V 3.7V 4ch BTL 1.5V DRIVER SLD+ SPDL+ SLED IN SLD+ SPD+ SPDL+ /EJECT A3.3V REG. SLD- SPDL- SLED OUT AD3.3V SLD- SPD- SPDL- /LOAD 7.5V 7.5V VCC2 VCC1 R251 5.0V 0.01 1.2V...
  • Page 31 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 3.3V R233 16.934MHz 2200P FCS- 1.9V TRK- TRK+ 2200P FCS+ DPU1 0.033 0.033 (X92- ) 2.1V OPTICAL 87.7kHz 1.8V 2.5V PICKUP 16.934MHz 1.5V 2.1V 1.7V 88.8kHz 1.7V DVSS3 1 3.2V 1.4MHz 19.8kHz TNPC 16.934MHz 3.0V 1.8V 1.7V 1.8V 3.5V...
  • Page 32 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 EXPLODED VIEW (CD MECHANISM) DPU1 DFPC1 (X32) φ : N09-4460-15 M1.6x6.0 : N09-6317-05 M1.7x2.5 : N09-6004-15 M2x2 : N09-6007-15 φ 2x5(BLK) : N09-6051-15 1.6 WASHER : N19-2163-04 M2x2 : N39-2020-48 φ 2x3.5 : N09-6108-15 φ : N09-6155-15 Parts with the exploded numbers larger than 700 are not supplied.
  • Page 33 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 EXPLODED VIEW (UNIT) Batteries for RC1 DME1 : N24-3015-48 : N80-2006-48 : N80-2012-43 : N83-3005-48 : N86-2610-48 : N80-3010-48 : N83-3005-48 : N83-3020-48 : N86-2606-48 (X34) (X34) (X16-) (X34-) Depends on the models. Refer to the parts list.

  • Page 34: Parts List

    ITEM CARTON CASE CK73GB1A105K CHIP C 1.0UF ✽ H54-4153-03 ITEM CARTON CASE K : KDS-MP238 K1 : KDC-MP238CR K2 : KDC-MP208 Indicates safety critical com po nents. M1 : KDC-MP439 M2 : KDC-MP239 M3 : KDC-MP3039 M4 : KDC-MP339 M5 : KDC-MP339S...
  • Page 35 C93-1451-05 CHIP C 0.10UF R240 RK73EB2E470J CHIP R J 1/4W K : KDS-MP238 K1 : KDC-MP238CR K2 : KDC-MP208 Indicates safety critical com po nents. M1 : KDC-MP439 M2 : KDC-MP239 M3 : KDC-MP3039 M4 : KDC-MP339 M5 : KDC-MP339S...
  • Page 36 J 1/6W C809 CK73GB1A105K CHIP C 1.0UF R209,210 RD14BB2C471J J 1/6W K : KDS-MP238 K1 : KDC-MP238CR K2 : KDC-MP208 Indicates safety critical com po nents. M1 : KDC-MP439 M2 : KDC-MP239 M3 : KDC-MP3039 M4 : KDC-MP339 M5 : KDC-MP339S...
  • Page 37 R502 RK73GB2A472J CHIP R 4.7K J 1/10W D401 1SS133 DIODE K : KDS-MP238 K1 : KDC-MP238CR K2 : KDC-MP208 Indicates safety critical com po nents. M1 : KDC-MP439 M2 : KDC-MP239 M3 : KDC-MP3039 M4 : KDC-MP339 M5 : KDC-MP339S...
  • Page 38 D10-4916-23 SLIDER D10-4914-12 SLIDER D10-4588-13 SLIDER D10-4917-04 D10-4596-24 D13-2151-04 GEAR K : KDS-MP238 K1 : KDC-MP238CR K2 : KDC-MP208 Indicates safety critical com po nents. M1 : KDC-MP439 M2 : KDC-MP239 M3 : KDC-MP3039 M4 : KDC-MP339 M5 : KDC-MP339S...
  • Page 39 KDC-MP208/MP238/MP238CR/MP239 KDC-MP3039/MP339/MP339S/MP439 SPECIFICATIONS (KDC-MP208/MP238/MP238CR) FM tuner section Audio section Frequency range Maximum output power ..........50W x 4 200kHz space ........87.9MHz~107.9MHz Full Bandwidth Power (at less than 1% THD) ... 22W x 4 50kHz space (KDC-MP238CR) ..87.5MHz~108.0MHz Speaker Impedance ............4~8Ω...
  • Page 40 Frequency response (±1dB) ......20Hz~20kHz Total harmonic distortion (1kHz) ........0.01% Signal to Noise ratio (1kHz) ......... 105dB KENWOOD follows a policy of continuous advancements Dynamic range .............. 93dB in development. For this reason specifications may be MP3 decode ..Compliant with MPEG-1/2 Audio Layer-3 changed without notice.

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