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Instruction Manual
CD RECEIVER
KDC-MP4036U/MP435U/X491
KDC-W4537UA/W4537UAY
KDC-W4537UG/W4537UGY
KDC-W4737U/W4737UY
SERVICE MANUAL
Panel assy
KDC-MP4036U (A64-4129-12)
Panel assy
KDC-W4537Uxx (A64-4127-12)
Panel assy
KDC-X491 (A64-4221-12)
Mounting hardware assy
(J21-9716-03)
* Antenna adaptor
* Screw set
(T90-0523-05)
(N99-1757-05)
* Depends on the model. Refer to the parts list.
KDC-MP4036U
KDC-W4537U
KDC-X491
* DC cord
* DC cord
(E30-6428-05)
(E30-6671-05)
Lever
* Plastic cabinet assy
(D10-4589-04) x2
(A02-2736-03)
This product complies with the
© 2007-4 PRINTED IN JA PAN
B53-0513-00 ( N ) 552
Panel assy
KDC-MP435U (A64-4126-12)
Panel assy
KDC-MP4737U/MP4737UY (A64-4175-12)
SPARE TDF PANEL
MAIN UNIT NAME
TDF PARTS No.
KDC-MP4036U
Y33-2720-64
KDC-MP435U
Y33-2720-61
KDC-W4537UA
Y33-2720-63
KDC-W4537UAY
Y33-2720-63
KDC-W4537UG
Y33-2720-63
KDC-W4537UGY
Y33-2720-63
KDC-W4737U
Y33-2720-62
KDC-W4737UY
Y33-2720-62
KDC-X491
Y33-2720-60
* Remote controller assy (RC-xxx)
(A70-xxxx-xx)
* Carrying case
(W01-xxxx-xx)
This product uses Lead Free solder.
RoHS
KDC-MP435U
KDC-W4737U
TDF NAME
TDF-MP4036U
TDF-MP74D
TDF-W4537U
TDF-W4537U
TDF-W4537U
TDF-W4537U
TDF-W4737U
TDF-W4737U
TDF-MP74DX
Battery
(Not supplied)
Escutcheon
(B07-3125-01)
directive for the European market.
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Summary of Contents for Kenwood KDC-MP4036U
- Page 1 CD RECEIVER KDC-MP4036U/MP435U/X491 KDC-W4537UA/W4537UAY KDC-W4537UG/W4537UGY KDC-W4737U/W4737UY © 2007-4 PRINTED IN JA PAN SERVICE MANUAL B53-0513-00 ( N ) 552 Panel assy Panel assy KDC-MP4036U (A64-4129-12) KDC-MP435U (A64-4126-12) KDC-MP4036U KDC-MP435U Panel assy Panel assy KDC-W4537Uxx (A64-4127-12) KDC-MP4737U/MP4737UY (A64-4175-12) KDC-W4537U KDC-W4737U Panel assy...
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Page 2: Block Diagram
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY BLOCK DIAGRAM ELECTRIC UNIT (X34- ) CN600 AUX IN DME1 PRE OUT SERVO Q601,606 Q600,602-605,607 (FRONT) J600 PRE OUT SW MUTE D3.3V IC705 IC705 MUTE (REAR) IC703 IC300 PRE OUT 4VPRE+B (SW) IC400 AUX (ISO IN) IC711 POWER... - Page 3 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY BLOCK DIAGRAM CD PLAYER UNIT (X32-598x-xx) MOTHER BOARD (X34- ) DPU1 MRST D.GND MSTOP MSTOP A,B,C,E,F LEVEL SHIFT LEVEL SHIFT DATA DATA 1 CHIP IC RF AMP LEVEL SHIFT MUTE SERVO MUTE PROCESSOR (0-00),(0-01) ONLY L-ch MICRO R-ch...
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Page 4: Components Description
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY COMPONENTS DESCRIPTION ● ELECTRIC UNIT (X34-466x-xx) Ref. No. Application / Function Operation / Condition / Compatibility SW REG Outputs 5.0V. Power supply for D5V, FL+B and USB5V. A8V REF Power Supply Outputs 1.27V. IC100 Reset IC Lo when detection voltage goes below 3.6V. - Page 5 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY COMPONENTS DESCRIPTION Ref. No. Application / Function Operation / Condition / Compatibility Q300,302 4VPRE+B Protect When 4VPRE+B is overcurrent, Q300 and Q302 turn Q301 off. Q301 4VPRE+B AVR When Q300’s base is 8V, 4VPRE+B outputs 7.4V. Q500,501 AM+B When Q501’s base goes Hi, AM+B is output.
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Page 6: Microcomputer's Terminal Description
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY MICROCOMPUTER’S TERMINAL DESCRIPTION ● SYSTEM µ-COM: IC102 on X34- (ELECTRIC UNIT) Truth Pin No. Pin Name Application Processing / Operation / Description Value Table External display remote control input Panel attached: Pull-up REMO Panel remote control input Panel detached: Pull-down... - Page 7 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Pin No. Pin Name Application Processing / Operation / Description Value Table S SOC SCL SOC→System µ-com clock 36-38 Not used Output L fi xed ROMCOR DET E2PROM writing request H: Writing EPM input when writing...
- Page 8 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Pin No. Pin Name Application Processing / Operation / Description Value Table ILLUMI DET Dimmer illumination detection L: ON, H: OFF Communication request of system µ-com S SYS REQ →SOC Communication request of SOC→system S SOC REQ µ-com...
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Page 9: Test Mode
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY TEST MODE ● How to enter the test mode OFF the P-CON terminal. ( The symbol, “_” indicates the blank. ) Press and hold the [1] and [3] keys and reset. → Make this as the process dedicated for the test mode. - Page 10 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY TEST MODE ● AUDIO adjust mode ● MENU • Press the [AUD] key and enter the audio adjustment • Press [MENU] key briefl y to enter the MENU. mode. • Press the remote control [DNPP/SBF] key and the •...
- Page 11 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY TEST MODE Key pressed briefl y: Number of CD EJECT times is CD time code error count data display (missing counts) ↓ displayed. [switched by [ ] / [ ] keys] (Display) CNT_LOSE ↔ CDDA_ _xx ↔ CDROM_xx ↔...
- Page 12 • Displays number of CD EJECT times. “PROTECT” is not shown. • Displays number of times panel was opened/closed. • Displays forced Power OFF data. ● FM/AM channel space switching (KDC-MP4036U/ [DC offset error detection information] MP435U/X491 only) • DC offset error detection display 1 While power is OFF, press and hold [1] and [5] keys, and •...
- Page 13 • How to clear the programmable security code Audio Passport” sheet after replacing E2PROM (KDC-MP435U/X491 only) (in the front-end: A500 of X34-) (KDC-MP4036U/ 1. While “_ _ _ _” is being displayed, press [ ] key for 3 seconds or longer while pressing the [AUTO] or [TI] keys.
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Page 14: Dc Offset Error
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY DC OFFSET ERROR ● Purpose • Key specifi cation Prevent customer’s vehicle speakers damages, burnouts, • Other keys than eject and power keys are invalid. and smoking. Avoid the connected speakers to be bur ned out, • Display specifi cation damaged, or to smoke when DC occurs between the •... - Page 15 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY PC BOARD (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) SWITCH UNIT SWITCH UNIT X16-389x-xx (J76-0368-12) X16-389x-xx (J76-0368-12) TDF-DET USB D- USB D+ USB-GND USB5V DATA VFD-CE VFD-CL REMO DATA RTRAY CW VFD-BLK RTRAY CCW ILL D GND SW VFL...
- Page 16 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY PC BOARD (COMPONENT SIDE VIEW) ELECTRIC UNIT X34-466x-xx (J76-0370-22) IC400 J601 W403 J600/J602 D409 C400 R404 R401 R402 C406 C405 C601 C602 C605 C606 C402 R602 R603 R608 R609 R622 R620 Q300 R618 Q607 Q606 D602 C618 R637...
- Page 17 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY X34-466x-xx Ref. No. Address C422 R404 R412 IC102 C423 IC103 IC200 C424 IC300 IC301 IC400 IC700 R316 IC702 IC703 IC704 IC705 TP200 IC708 CN201 IC709 IC710 CN202 IC711 D220 C801 D219 IC714 L200/ CP730 C902 IC715 C206 IC716...
- Page 18 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X34-466x-xx (J76-0370-22) C921 C914 W405 C912 R911 C412 C925 C413 R916 R305 R309 R317 R313 R301 C114 R148 C805 R145 C109 R143 R134 R135 C108 R133 R132 C107 R165 R151 C750...
- Page 19 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY W405 R911 X34-466x-xx C905 Ref. No. Address IC100 IC500 R616 IC712 R612 R503 C114 IC101 Q200 Q301 Q302 C109 Q500 R141 C108 Q501 R136 Q600 Q601 R151 IC100 R137 Q602 R139 Q603 Q604 Q704 Q706 R115 W501 C500...
- Page 20 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY PC BOARD (COMPONENT SIDE VIEW) CD PLAYER UNIT X32-5980-02 (J76-0377-02) R28 R27 X32-5980-02 Ref. No. Address Refer to the schematic diagram for the values of resistors and capacitors.
- Page 21 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY PC BOARD (FOIL SIDE VIEW) CD PLAYER UNIT X32-5980-02 (J76-0377-02) P-ON2 P-ON1 IOP+ R105 R101 R100 FCS+ R103 FCS- A3.3V NPWDOWN R129 R128 C15 R13 TP24 CP11 R132 OCDSEL R102 TESTIN0 /MRST /MUTE FCLK /MSTOP LO/EJ MOTOR BU5V...
- Page 22 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY PRE OUT AUX IN/SUB FRONT REAR J601 ELECTRIC UNIT (X34-466x-xx) J600 J602 CN600 CN601 TP44 TP36 TP39 ANT. TP37 C505 A500 C904 C905 TP41 0.01 C609 C610 C504 AM+B RFGND 0.01 0.01 R636 1000P 1000P Q500 0.01 FMANT...
- Page 23 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY CD-CH J601 C115 IC103 0.01 5.0V uCOM5V MUTING LOGIC IC R635 NOT USED C103 C620 0.01 0.01 D616 IC101 D619 D615 R152 D620 D614 100K TP59 D621 D613 TP60 D612 E2PROM 0 or 1.6 or 2.5 or 3.4 or 5.0V...
- Page 24 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY to DC CORD uCOM5V C110 0.01 R155 3.9K R154 3.9K SW5V C112 0.1 SW5V SW5V C111 0.1 A8V REF POWER SUPPLY TP109 0 or 1.6 or 2.5 or 3.4 SURGE or 5.0V CP104 100 CD MOTOR ACC DET...
- Page 25 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY F1 (10A) QUAD 2-INPUT TP116 (F52-0023-05) AND GATE FUSE C751 IC712 3.3V R769 0.01 3.3V IC709 100K TP114 5.0V 5.0V 3.3V 3.3V 3.3V R782 M-RST TP115 3300u16 CONVERTER 3.3V R783 3.3V Q706 3.3V C930 0.1 IC709,710 C756 Q704 INVERTED 0.01...
- Page 26 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY : BD9781HFP IC102 : 30624MWPB41GP IC708 : SI-3033KMS Q1,3,5,8,10 : 2SB1565 IC301 : TA75S558F-F IC702 : 341S2094 : M5237ML-CF0J IC103 : 74HC2G02DP IC709,710 Q2,6,11,20,601,606 : RT1P241M Q56,58 IC400 : IC703 : AK4117 IC100 : S-80836CNNB-J IC200 : MIC2026-1YM...
- Page 27 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY : RT1P141M : S2V60-5009F46 D50,51,59-61,307 : 02DZ4.7F-Y Q56,58 : 2SB1188(Q,R) : RB160L-40 : D1F60-5063 D200 : B30-1567-05 : RT1N441M D3,309 : UDZS5.6B : UDZS6.2B D213,611-616,619 Q300 : 2SB1443 : UDZS8.2B D53,55 : UDZS6.8B : 02DZ6.2F-Y Q500 : 2SB1689...
- Page 28 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY SWITCH UNIT (X16-389x-xx) (3GB/1GB/3GA/2G) (1GA TP23 1/2W TP24 Upside REMOTE CONTROL SENSOR Downside KEY MATRIX (14-SEGMENT) AUTO MENU EJECT PANEL TP27 TP28 USB ESD GND TP29 TP30 PAN5V LED+B ILL D GND RTRY CCW RTRY CW TP31 TP32 REMO 7 11.25V...
- Page 29 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY ANODE CONNECTION 3GA,3GB 1GA,1GB NAME col (Downside) (1GA) CAUTION : For continued safety, re place safe ty critical col (Upside) com po nents only with manu- facturer’s rec om mend ed parts (refer to parts list). Indicates safety critical com- po nents.
- Page 30 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY CD PLAYER UNIT (X32-598x-xx) A3.3V 3.3V A8V SW D.GND A3.3V A.GND 1.5V Q1 SW ASEL OCDSEL 5V-3.3V LEVEL SHIFT BCLK 3.3V LRCK 3.3V 0-3.3V SRDATA 0-3.2V 3.3V R106 MUTE R MUTE L N.C. CORRECTION SRVMON1 SRVMON1 (NOT USED)
- Page 31 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY A3.3V A.GND C71 10 CAUTION : For continued safety, C72 0.1 re place safe ty critical com po nents only with manufacturer’s rec om - C73 10 16.934MHz mend ed parts (refer to parts list). C74 0.1 A GND2 Indicates safety critical com- 2.60pp...
- Page 32 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY 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.
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Page 33: Exploded View (Unit)
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY EXPLODED VIEW (UNIT) DME1 : N24-3015-48 : N80-2006-48 : N80-2008-43 : N83-3005-48 : N80-3010-48 : N83-3005-48 (X34) : N83-3020-48 : N83-3008-48 : N82-2608-48 (X34) (X34) (X34) A500 (X16-) (X16) (X34-) Depends on the models. Refer to the parts list. -
Page 34: Parts List
COMPRESSION SPRING (REL) B30-1566-05 LED (1608,RED) E2E4M1 K : KDC-MP435U K1 : KDC-X491 M1 : KDC-MP4036U E1 : KDC-W4537UA E2 : KDC-W4537UG Indicates safety critical com po nents. E3 : KDC-W4537UAY E4 : KDC-W4537UGY E5 : KDC-W4737U E6 : KDC-W4737UY... - Page 35 1000PF RK73GB2A392J CHIP R 3.9K J 1/10W K : KDC-MP435U K1 : KDC-X491 M1 : KDC-MP4036U E1 : KDC-W4537UA E2 : KDC-W4537UG Indicates safety critical com po nents. E3 : KDC-W4537UAY E4 : KDC-W4537UGY E5 : KDC-W4737U E6 : KDC-W4737UY...
- Page 36 0.10UF C509,510 CC73GCH1H270J CHIP C 27PF E4E5E6 K : KDC-MP435U K1 : KDC-X491 M1 : KDC-MP4036U E1 : KDC-W4537UA E2 : KDC-W4537UG Indicates safety critical com po nents. E3 : KDC-W4537UAY E4 : KDC-W4537UGY E5 : KDC-W4737U E6 : KDC-W4737UY...
- Page 37 0.010UF K CP700 RK74HB1J330J CHIP-COM 33 J 1/16W K : KDC-MP435U K1 : KDC-X491 M1 : KDC-MP4036U E1 : KDC-W4537UA E2 : KDC-W4537UG Indicates safety critical com po nents. E3 : KDC-W4537UAY E4 : KDC-W4537UGY E5 : KDC-W4737U E6 : KDC-W4737UY...
- Page 38 RK73EB2E102J CHIP R 1.0K J 1/4W E1E2E5 K : KDC-MP435U K1 : KDC-X491 M1 : KDC-MP4036U E1 : KDC-W4537UA E2 : KDC-W4537UG Indicates safety critical com po nents. E3 : KDC-W4537UAY E4 : KDC-W4537UGY E5 : KDC-W4737U E6 : KDC-W4737UY...
- Page 39 R722 RK73GB2A101J CHIP R J 1/10W KM1E5 K : KDC-MP435U K1 : KDC-X491 M1 : KDC-MP4036U E1 : KDC-W4537UA E2 : KDC-W4537UG Indicates safety critical com po nents. E3 : KDC-W4537UAY E4 : KDC-W4537UGY E5 : KDC-W4737U E6 : KDC-W4737UY...
- Page 40 CHIP R J 1/10W D304-306 MC2846 DIODE K : KDC-MP435U K1 : KDC-X491 M1 : KDC-MP4036U E1 : KDC-W4537UA E2 : KDC-W4537UG Indicates safety critical com po nents. E3 : KDC-W4537UAY E4 : KDC-W4537UGY E5 : KDC-W4737U E6 : KDC-W4737UY...
- Page 41 D13-2155-04 WORM DTA114YUA DIGITAL TRANSISTOR D13-2156-14 GEAR K : KDC-MP435U K1 : KDC-X491 M1 : KDC-MP4036U E1 : KDC-W4537UA E2 : KDC-W4537UG Indicates safety critical com po nents. E3 : KDC-W4537UAY E4 : KDC-W4537UGY E5 : KDC-W4737U E6 : KDC-W4737UY...
- Page 42 DC MOTOR (LOADING/SLED) DPU1 X93-2130-01 OPTICAL PICKUP ASSY K : KDC-MP435U K1 : KDC-X491 M1 : KDC-MP4036U E1 : KDC-W4537UA E2 : KDC-W4537UG Indicates safety critical com po nents. E3 : KDC-W4537UAY E4 : KDC-W4537UGY E5 : KDC-W4737U E6 : KDC-W4737UY...
- Page 43 KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY /W4537UG/W4537UGY/W4737U/W4737UY 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.
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Page 44: Specifications
Tone action KDC-W4537Uxx/W4737Ux (S/N : 26dB) .......0.7µV/75Ω Bass ................100Hz±8dB Quieting Sensitivity Middle ................1kHz±8dB KDC-MP4036U/MP435U/X491 (S/N : 50dB) . 15.2dBf (1.6µV/75Ω) Treble ................10kHz±8dB KDC-W4537Uxx/W4737Ux (S/N : 46dB) .......1.6µV/75Ω Preout level/Load (during disc play) Frequency response (± 3.0dB) ........30Hz~15kHz KDC-MP4036U/W4537Uxx/W4737Ux .....