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...
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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...
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.
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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.
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...
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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...
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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...
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.
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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 •...
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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 ↔...
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• 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 •...
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• 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.
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 •...
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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...
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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.
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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...
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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...
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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...
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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...
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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...
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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.
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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)
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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...
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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.