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Kenwood KDC-138 Service Manual
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Kenwood KDC-138 Service Manual

Old x34-56 series
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Download this manual See also: Training Manual, Instruction Manual
New ELECTRIC UNIT (X34-) for 2008 CD RECEIVER
X34-56xx-xx
SERVICE MANUAL
ELECTRIC UNITs for the following 2008 CD receivers which are produced after November of 2007
are changed as follows. This service manual is only for the changed new ELECTRIC UNITs.
DESTI-
DISPLAY
NATION
TYPE
K
7-SEG LCD
KDC-138
K
7-SEG LCD
KDC-138CR
K
14-SEG VFD
KDC-MP208
K
14-SEG VFD
KDC-MP238
K
14-SEG VFD
KDC-MP238CR
M
7-SEG LCD
KDC-139
M
7-SEG LCD
KDC-139S
M
14-SEG VFD
KDC-MP239
M
14-SEG VFD
KDC-MP3039
M
14-SEG VFD
KDC-MP339
M
14-SEG VFD
KDC-MP339S
M
14-SEG VFD
KDC-MP439
E
14-SEG VFD
KDC-241SA
E
14-SEG VFD
KDC-241SG
E
14-SEG VFD
KDC-W241AY/GY
E
14-SEG VFD
KDC-W3041A/G
E
14-SEG VFD
KDC-W3041AY/GY
E
14-SEG VFD
KDC-W312A/G
E
14-SEG VFD
KDC-W312AY/GY
E
14-SEG VFD
KDC-W312SAY
MODEL
OLD X34-
X34-5640-10
X34-5640-11
X34-5640-14
X34-5640-12
X34-5640-13
X34-5640-21
X34-5640-21
X34-5640-23
X34-5640-23
X34-5640-23
X34-5640-23
X34-5640-22
X34-5652-70
X34-5652-70
X34-5652-71
X34-5652-72
X34-5652-73
X34-5652-72
X34-5652-73
X34-5652-73
KDC-138
KDC-241
© 2008-1 CREATED IN JA PAN
B53-0608-00 ( N ) 0
SERIAL No.
NEW X34-
FROM
X34-5670-10
71109301 / 71200001
X34-5670-11
71200001
X34-5670-14
71103501 / 71208401
X34-5670-12
71106402 / 80100001
X34-5670-13
71200001 / 80100001
X34-5670-21
71110201
X34-5670-21
-
X34-5670-23
71200001
X34-5670-23
-
X34-5670-23
-
X34-5670-23
-
X34-5670-22
V1100701
X34-5682-70
V1101001
X34-5682-70 W0100001
X34-5682-71
V1110501
X34-5682-74
V1101601
X34-5682-75
V1102501
X34-5682-74
V1101601
X34-5682-75
V1102501
X34-5682-75
V1102501
This product uses Lead Free solder.
This product complies with the
ORIGINAL
SERVICE MANUAL
KDC-138/...............
KDC-138/...............
KDC-MP208/..........
KDC-MP208/..........
KDC-MP208/..........
KDC-138/...............
KDC-138/...............
KDC-MP208/.........
KDC-MP208/.........
KDC-MP208/.........
KDC-MP208/.........
KDC-MP208/.........
KDC-241SA/..........
KDC-241SA/..........
KDC-W241AY/......
KDC-W241AY/......
KDC-W241AY/......
KDC-W241AY/......
KDC-W241AY/......
KDC-W241AY/......
KDC-MP208
KDC-W241
RoHS
directive for the European market.

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Summary of Contents for Kenwood KDC-138

  • Page 1 This service manual is only for the changed new ELECTRIC UNITs. DESTI- DISPLAY SERIAL No. ORIGINAL MODEL OLD X34- NEW X34- NATION TYPE FROM SERVICE MANUAL 7-SEG LCD KDC-138 X34-5640-10 X34-5670-10 71109301 / 71200001 KDC-138/....7-SEG LCD KDC-138CR X34-5640-11 X34-5670-11 71200001 KDC-138/....14-SEG VFD KDC-MP208...

  • Page 2: Block Diagram

    X34-56xx-xx BLOCK DIAGRAM ELECTRIC UNIT (X34- ) ANT. DME1 AM+B R103 TUNER FRONT-END MECHA PHONE PHONE SERVO+B POWER Q101 ACC-DET ACC DET Q103 BU-DET BU DET Q102 DC-CN Q701,702 MUTE SURGE- E-VOL PHONE PRE-OUT PRE-OUT FRONT/ MUTE SP-OUT REAR/SW ROM CORRECTION (NOT USED) DECODER IC10 B.U.

  • Page 3: Components Description

    X34-56xx-xx COMPONENTS DESCRIPTION ● ELECTRIC UNIT (X34-56xx-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: Microcomputer's Terminal Description

    X34-56xx-xx 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 5 X34-56xx-xx 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 I/O CD motor control Refer to the truth value table VFD CE VFD control request...
  • Page 6 X34-56xx-xx MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Pin No. Pin Name Application Processing Operation Description 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. LINE MUTE Line mute detection TEL mute: Below 1V, NAVI mue: Over 2.5V...
  • Page 7 X34-56xx-xx TEST MODE (7-SEG LCD) ■ 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 ■5 2 seconds or longer to clear disc EJECT times. A symbol “■”...
  • Page 8 X34-56xx-xx TEST MODE (7-SEG LCD) ■ 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 condition indication real-time condition of the destination terminal. Development ID Development ID –...
  • Page 9 X34-56xx-xx TEST MODE (7-SEG LCD) • CD information display mode Description of display Description I2C com- I2C communication OK munication I2C communication NG status 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) nism error...
  • Page 10 X34-56xx-xx TEST MODE (7-SEG LCD) • K3I forced switching Every time when [6] key is pressed in tuner FM source, switched in the following order: AUTO → Forced WIDE → Forced MIDDLE → Forced NARROW → AUTO. Default status is AUTO, and displayed as shown below. Description of display Description AUTO (1)
  • Page 11 X34-56xx-xx TEST MODE (7-SEG LCD) Description of display Description Information display Display of Mechanism model name and Mechanism version. Mechanism model name (When key is pressed while the display in the left is being Mechanism version shown, returns to normal display.) Jump to No.
  • Page 12 X34-56xx-xx TEST MODE (7-SEG LCD) ■ PREOUT switching (KDC-138/139/139S only) Procedure Note In the STANDBY source, press and hold [AUTO] key for Switches PREOUT 1 second or longer ■ LCD (ED1) short check Procedure Note All lights are off → Turns on odd and even terminals alternatively every In the STANDBY source, press [ATT] key 125ms (terminals that have a maximum number of grids) →...
  • Page 13 X34-56xx-xx TEST MODE (7-SEG LCD) Procedure Display Description When detecting improper connection or other DC offset errors, clears ■1 detection data. (Clear E2PROM) When detecting capacitor leak, provides information on the number of capacitor leaks. (0~4) When detecting capacitor leak, clears the number of capacitor leaks. ■2 (Clear E2PROM) This mode is cancelled by resetting.
  • Page 14 X34-56xx-xx TEST MODE (14-SEG VFD) ■ 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. A symbol “■”...
  • Page 15 X34-56xx-xx TEST MODE (14-SEG VFD) ■ 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 16 X34-56xx-xx TEST MODE (14-SEG VFD) • 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) nism error 2 : X XX: Error number.
  • Page 17 X34-56xx-xx TEST MODE (14-SEG VFD) • K3I forced switching Every time when [6] key is pressed in tuner FM source, switched in the following order: AUTO → Forced WIDE → Forced MIDDLE → Forced NARROW → AUTO. Default status is AUTO, and displayed as shown below. Description of display Description AUTO...
  • Page 18 X34-56xx-xx TEST MODE (14-SEG VFD) ■ 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 → Track up procedure No.22 →...
  • Page 19 X34-56xx-xx TEST MODE (14-SEG VFD) ■ [ATT] key operation Procedure Note In the TUNER source, press [ ] key ATT OFF/ON ■ 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) ■...
  • Page 20 X34-56xx-xx TEST MODE (14-SEG VFD) ■ 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 leaking, or an improper connection or another error is detected) Press and hold the [3] and [6] keys, and reset-start...
  • Page 21 X34-56xx-xx TEST MODE (14-SEG VFD) • 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 Enters the MENU mode.

  • Page 22: Rom Data Transfer Processes

    X34-56xx-xx ROM DATA TRANSFER PROCESSES ■ Operation procedure When replacing front-end (A1) of mother unit (X34-), or when adding or replacing ROM correction (program correction Operation procedure is different depending on the condi- with ROM IC (IC10)), the following activities are required. tions.
  • Page 23 X34-56xx-xx 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 trans- fer mode.) Mother unit (X34-) Press [...
  • Page 24 X34-56xx-xx ROM DATA TRANSFER PROCESSES 4. In case of applying a new ROM correction when front- Turn power on. end (A1) is replaced (There is ROM correction data.) Press and hold the [1] and [3] keys, press reset button. (Enter 5.
  • Page 25 X34-56xx-xx 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). Press [B.BOOST] key.
  • Page 26 X34-56xx-xx PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X34-56xx-xx (J76-0459-12) R894 W112 C907 W102 R101 C905 R102 C903 C806 R808 D103 W113 R106 D803 R107 C102 D108 W171 R803 R804 R953 W813 W160 R805 C990 C407 R116 C405 C404 R219 C406 R401 R227...
  • Page 27 X34-56xx-xx C703 6 10 9 R604 X34-56xx-xx Ref. No. Address C603 R710 R712 C706 Q704 W706 W159 W160 W162 C705 W705 W163 C407 C405 C406 R501 Q101 R503 Q102 C401 Q103 Q104 Q105 Q301 Q701 Q702 A-DATA Q703 A-CLK R329 D305 Q704 D303...
  • Page 28 X34-56xx-xx ELECTRIC UNIT (X34-5xxx-xx) R606 1K REQ S TP98 R609 100 MUTE TP95 R607 1K DATA S TP97 Q801 R605 100 W812 TP99 DATA M TP96 R608 100 R610 4.7K TP94 ELECTRIC DISCHARGE CIRCUIT for C805 (SVR) LX BUS R601 C601 GND2 R613...
  • Page 29 X34-56xx-xx R894 TP315 C806 R808 POWER IC 14.4V TP316 D803 R806 Q801 W812 C809 C807 CTRIC CHARGE CUIT for C805 7.5V 7.4V 7.5V R803 3.3V VOUT 5.0V RESET IC TP432 5.0V R201 LX DATA M LX CLK R202 100K 4.8V REMO R599 BYTE...
  • Page 30 X34-56xx-xx ELECTRIC U F1 10A DC CN TP16 (F52-0023-05) FUSE 2008 MODEL CHANGED 3300u16 BU5V BU5V X34- C16 0.01 R229 100K 5.0V SET IC TP502 3.5V P ANT 2008 D104 R953 MODEL BU DET TA M 0 or 1.6 or 2.5 or ACC DET 3.4 or 5.0V VISTEON...
  • Page 31 C703, DESTI- UNIT MODEL NAME C206 NATION 901-908 E232/S J/J1 X34-5670-02 X86-4160-01 30622MEPB51FP KKZ12Z RDT-131 X34-5670-01 X86-4160-01 30302MAPA85FP KKZ12Z DTC143TUA KDC-138 X34-5670-10 X86-4160-11 30302MAPA85FP KKZ12Z KDC-138CR X34-5670-11 X86-4160-11 30302MAPA85FP KKZ12Z KDC-MP208 X34-5670-14 X86-4160-11 30622MEPB51FP KKZ12Z KDC-MP238 X34-5670-12 X86-4160-11 30622MGPB52FP KKZ12Z...

  • Page 32: Parts List

    PAN HEAD SCREW (ANT - REAR PNL) N83-3016-48 PAN HEAD SCREW (P.IC - 786) x2 R312 RK73GB2A102J CHIP R 1.0K J 1/10W KK1K2 K : KDC-MP238 K1 : KDC-MP238CR K2 : KDC-MP208 Indicates safety critical com po nents. K3 : KDC-138 K4 : KDC-138CR...
  • Page 33 PRF18BE471QS2 POSITIVE RESISTOR R707,708 RK73GB2A331J CHIP R J 1/10W K R709,710 RD14BB2C223J J 1/6W 2D ✽ X86-4160-11 FRONT-END UNIT K : KDC-MP238 K1 : KDC-MP238CR K2 : KDC-MP208 Indicates safety critical com po nents. K3 : KDC-138 K4 : KDC-138CR...
  • Page 34 X34-56xx-xx PARTS LIST ✽ New parts Parts without Parts No. are not supplied. DESTINATION “M” Les articles non mentionnes dans le Parts No. ne sont pas fournis. EXPLODED VIEW is on page 2. Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref.
  • Page 35 X34-56xx-xx PARTS LIST DESTINATION “M” ELECTRIC UNIT (X34-56xx-xx) Desti- Desti- Ref. No. Parts No. Description Ref. No. Parts No. Description nation nation R305 RK73GB2A102J CHIP R 1.0K J 1/10W M4M5 R615 RK73GB2A4R7J CHIP R J 1/10W M1 R306 RK73GB2A472J CHIP R 4.7K J 1/10W R701,702...
  • Page 36 X34-56xx-xx PARTS LIST DESTINATION “M” ELECTRIC UNIT (X34-56xx-xx) Desti- Desti- Ref. No. Parts No. Description Ref. No. Parts No. Description nation nation KRA303-P TRANSISTOR M1M2M3 KRA303-P TRANSISTOR M4M5 KRC403-P TRANSISTOR KRA303-P TRANSISTOR KRC403-P TRANSISTOR KRA303-P TRANSISTOR Q101-103 2SC4081 TRANSISTOR Q104,105 KRC404-P TRANSISTOR Q301...
  • Page 37 X34-56xx-xx PARTS LIST ✽ New parts Parts without Parts No. are not supplied. DESTINATION “E” (Western Europe) Les articles non mentionnes dans le Parts No. ne sont pas fournis. EXPLODED VIEW is on page 2. Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref.
  • Page 38 X34-56xx-xx PARTS LIST DESTINATION “E” (Western Europe) ELECTRIC UNIT (X34-56xx-xx) Desti- Desti- Ref. No. Parts No. Description Ref. No. Parts No. Description nation nation R314 RK73GB2A104J CHIP R 100K J 1/10W R894 RK73EB2E000J CHIP R J 1/4W R954 RK73GB2A000J CHIP R J 1/10W R315 RK73GB2A472J...
  • Page 39 X34-56xx-xx PARTS LIST ✽ New parts Parts without Parts No. are not supplied. DESTINATION “E” (Eastern Europe) Les articles non mentionnes dans le Parts No. ne sont pas fournis. EXPLODED VIEW is on page 2. Teile ohne Parts No. werden nicht geliefert. Desti- Desti- Ref.
  • Page 40 X34-56xx-xx PARTS LIST DESTINATION “E” (Eastern Europe) ELECTRIC UNIT (X34-56xx-xx) Desti- Desti- Ref. No. Parts No. Description Ref. No. Parts No. Description nation nation R301 RK73GB2A222J CHIP R 2.2K J 1/10W R705,706 RD14BB2C181J J 1/6W E3E6 R801 RK73GB2A332J CHIP R 3.3K J 1/10W R302...
  • Page 41 X34-56xx-xx PARTS LIST CAPACITORS 2 2 0 • Capacitor value CC45 Color* 010 = 1pF 0 = 22pF 1 = Type ... ceramic, electrolytic, etc. 4 = Voltage rating 100 = 10pF 2 = Shape ... round, square, etc. 5 = Value 101 = 100pF Multiplier 3 = Temp.
  • Page 42 X34-56xx-xx...
  • Page 43 X34-56xx-xx PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X34-56xx-xx (J76-0459-12) R894 C703 6 10 9 W112 C907 W102 R604 R101 C905 R102 C903 C806 C603 R808 D103 W113 R106 D803 R107 R710 C102 D108 R712 W171 R803 R804 R953 C706 W813 Q704 W706...
  • Page 44 J/J1 X34-5670-02 X86-4160-01 30622MEPB51FP KKZ12Z MUTE TP95 R609 100 RDT-131 X34-5670-01 X86-4160-01 30302MAPA85FP KKZ12Z R607 1K POWER IC 14.4V ∗ KDC-138 X34-5670-10 X86-4160-11 30302MAPA85FP KKZ12Z DATA S TP97 D803 TP316 R806 Q801 KDC-138CR X34-5670-11 X86-4160-11 30302MAPA85FP KKZ12Z TP99 R605 100...

This manual is also suitable for:

Kdc-mp238Kdc-138crKdc-mp238crKdc-139Kdc-mp208Kdc-mp3039 ... Show all