KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY BLOCK DIAGRAM ELECTRIC UNIT (X34- ) W500 R118 ANT. PHONE PHONE DME1 AM+B Q101 LX-BUS FRONT-END ACC-DET ACC DET MECHA SERVO+B Q103 BU-DET BU DET POWER Q102 DC-CN SURGE PHONE P STBY Q701-704 SP-OUT E-VOL MUTE FRONT L/R...
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY BLOCK DIAGRAM MOTHER CD PLAYER UNIT (X32-6250-00) BOARD DPU1 (X34- ) SIGNAL A/B/C/E/F SRAM STB SRAM STB BUCK BUCK RF AMP VREF SERVO PIO0 PIO0 PROCESSOR FO COIL MP3 DECODER FO OUT LEVEL SHIFT FO OUT MRST MRST...
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY COMPONENTS DESCRIPTION ● ELECTRIC UNIT (X34-623x-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, tone. Power Supply IC Outputs 5V×2, 8.1V×2, 10.2V, P-CON, P-ANT.
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY COMPONENTS DESCRIPTION ● CD PLAYER UNIT (X32-6250-00) Ref. No. Application / Function Operation / Condition / Compatibility Driver for focusing & tracking coil, driver for sled & spindle motor, and operation for disc 4ch BTL Driver loading & ejection.
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY 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 LX CLK I/O LX-BUS clock 125kHz~65kHz Not used Output L fi...
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Pin No. Pin Name Application Processing Operation Description Table L: Possible to rewrite fl ash ROM Flash ROM EPM input Connects to VSS (Never set it to output Hi) CD MOTOR I/O CD motor control...
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY MICROCOMPUTER’S TERMINAL DESCRIPTION Truth Value Pin No. Pin Name Application Processing Operation Description Table MUTE I/O Mute L: Mute OFF, Hi-Z: Mute ON BU detected: L, No BU or momentary power-down: H BU DET Momentary power-down detection (Operates below 4ms after momentary power-down...
KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY 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.
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY 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.
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY TEST MODE Description of display Description Turns off all the lights → Turns on odd and even terminals Fluorescent indicator short alternatively every 125ms (terminals that have a maximum check number of grids) → Turns on only the odd terminals → Turn on only the even terminals →...
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY TEST MODE Description of display Description CD time CD time code error count data (count not updated) mode display. code error count data Number of CD-DA count errors display XX: Number of errors. “– –” is displayed in case there is no error.
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY TEST MODE Description of display Description Seek Stop Level adjustment 0.00(V) ↔ 5.00 (V) Normal (Local OFF) (Manual) (UP) Seek Stop Level (DOWN) adjustment 0.00(V) ↔ 5.00 (V) Normal (Local ON) (Manual) The display in the left column is shown when the data has Adjustment ■...
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY TEST MODE About audio adjustment items (include both Audio Function Mode and Audio Setup Mode) Procedure Item Procedure Description Fader [VOL] knob and [ ] key Adjust to 3 steps of R15 ↔ 0 ↔ F15. (Default value: 0)
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY TEST MODE While “– – – –” is displayed, power can be ON for 30 minutes. This mode is cancelled by resetting. (The last screen will not be retained.) Data to be cleared is shown below. CD mechanism error log display...
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY TEST MODE • Method of clearing the security code Procedure Display Description Press [ ] key for 3 seconds or longer Carry out the procedure while “– – – –” is being displayed. E : – – –...
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY 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 with ROM IC (IC10)), the following activities are required.
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY 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.)
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY 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.
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY 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).
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY PC BOARD (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) SWITCH UNIT SWITCH UNIT X16-647x-xx (J76-0551-02) X16-647x-xx (J76-0551-02) VOUT SW+5V USB-D- REMO USB-GND USB-D+ USB+5V X16-647x-xx X16-647x-xx Ref. No. Address Ref. No. Address AUX-R R101 C101 AUX-L USB-D- USB-D- AUX-GND...
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY C872 R604 R701 X34-623x-xx Ref. No. Address IC53 R401 C921 A-DATA R501 R503 A-CLK Q102 T MRST Q105 S-METER Q301 Q705 Q902 Q903 Q905 C310 C311 C516 R348 R349 C515 Refer to the schematic diagram for the values of resistors and capacitors.
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY PC BOARD (COMPONENT SIDE VIEW) X32 B/2 12EJE CD PLAYER UNIT X32-6250-00 A/2 (J76-0556-02) 3.3V IOP- AGND RFRP BU1.5 D1.5V DGND S.GND D3.3V S.7.5V MOTOR ZDET SLED IN/EJECT SLED OUT/LOAD X32-6250-00 Ref. No. Address Refer to the schematic diagram for the values of resistors and capacitors.
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY PC BOARD (FOIL SIDE VIEW) X32 B/2 CD PLAYER UNIT X32-6250-00 A/2 (J76-0556-02) C101 X32-6250-00 Ref. No. Address Refer to the schematic diagram for the values of resistors and capacitors.
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KDC-W4044UA/W4044UAY/W4044UG/W4044UGY KDC-W413UA/W413UAY/W4544U/W4644UY FRONT REAR/SUB TP91 LX BUS ELECTRIC UNIT (X34-6xxx-xx) W608 C871 C872 680P 680P R970 R971 MUTE R709 R710 R703 R704 DRIVER Q903 Q703 Q704 Q701 Q702 3.3V R911 for IC R604 D605 Q705 Q902 D604 D601 Q701-704 PRE-OUT...
Installation Size (W x H x D) .....182 x 53 x 155mm WMA decode .... Compliant with Windows Media Audio Weight ................1.3kg AAC decode ..........AAC-LC “.m4a” fi les KENWOOD follows a policy of continuous advancements in development. For this reason specifi cations may be changed without notice. DANGER: Please do not look at the laser beam directly during re pair or operation check.