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Kenwood KDC-W4031 Service Manual

Kenwood KDC-W4031 Service Manual

Cd receiver
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CD RECEIVER
KDC-W4031/Y
KDC-W409/Y
KDC-W431GY
KDC-W4531/Y
KDC-WF431A

SERVICE MANUAL

PANEL ASSY
KDC-W4031/Y (A64-3455-02)
VOL
AUD
SET UP
MENU
FF
SCAN
PANEL ASSY
KDC-W431GY (A64-3457-02)
VOL
AUD
SET UP
SCAN
MENU
FF
PANEL ASSY
KDC-WF431A (A64-3466-02)
VOL
AUD
SET UP
FF
SCAN
MENU
LEVER
DC CORD
(D10-4589-04) x2
(E30-6413-05)
ANTENNA ADAPTOR
(T90-0523-05)
* Depends on the model. Refer to the parts list.
/PTY
RDM
REP
F.SEL
RDM
REP
F.SEL
/PIY
RDM
REP
F.SEL
PLASTIC CABINET ASSY
(A02-2736-03)
* ESCUTCHEON
(B07-xxxx-xx)
© 2004-12 PRINTED IN JAPAN
B53-0230-00 ( N ) 1813
PANEL ASSY
KDC-W409/Y (A64-3456-02)
VOL
AUD
SET UP
MENU
FF
SCAN
PANEL ASSY
KDC-W4531/Y (A64-3454-02)
VOL
AUD
SET UP
SCAN
MENU
FF
SPARE TDF PANEL
MAIN UNIT NAME
TDF PARTS No.
KDC-W4031/Y
Y33-2140-60
KDC-W409/Y
Y33-2140-65
KDC-W431GY
Y33-2140-61
KDC-W4531/Y
Y33-2140-60
KDC-WF431A
Y33-2140-63
MOUNTING HARDWARE ASSY
(J21-9716-03)
This product uses Lead Free solder.
/PTY
RDM
REP
F.SEL
External Media Control
/PTY
RDM
REP
F.SEL
M.RDM
TDF NAME
TDF-W4531
TDF-W409
TDF-W431GY
TDF-W4531
TDF-WF431

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Summary of Contents for Kenwood KDC-W4031

  • Page 1: Service Manual

    CD RECEIVER KDC-W4031/Y KDC-W409/Y KDC-W431GY KDC-W4531/Y KDC-WF431A SERVICE MANUAL © 2004-12 PRINTED IN JAPAN B53-0230-00 ( N ) 1813 PANEL ASSY PANEL ASSY KDC-W4031/Y (A64-3455-02) KDC-W409/Y (A64-3456-02) /PTY /PTY SET UP SET UP MENU SCAN F.SEL MENU SCAN F.SEL PANEL ASSY...
  • Page 2: Block Diagram

    KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A BLOCK DIAGRAM ELECTRIC UNIT (X34-) L506 FM AGC AM+B Q501 Q351,352 AM AGC PRE MUTE PRE OUT IC10 FM (J/K Type) : 1800mV FM (E Type) 1372mV AM (J/K Type) 600mV MPX OUT SERVO AM (E Type) 855mV...
  • Page 3 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A COMPONENTS DESCRIPTION ELECTRIC UNIT (X34-3402-7x) Ref. No. Application / Function Operation / Condition SYSTEM µ-COM System control. POWER SUPPLY DC5Vx2, 7.9Vx1, 8.1Vx1, 10.3V, P.CON, P-ANT output. POWER IC Audio signal amplifier. MUTE LOGIC Mute control. RDS DECODER RDS decode.
  • Page 4 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A COMPONENTS DESCRIPTION Ref. No. Application / Function Operation / Condition SELECTOR (SERIAL DATA) Serial audio data switch. DAC 3.3V AVR 3.3V power supply for IC2. LEVEL SHIFT 3.3V to 5.0V. Q3~7 LEVEL SHIFT 3.3V to 5.0V. AUTOMATIC POWER CONTROL LD driver.
  • Page 5 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A MICROCOMPUTER’S TERMINAL DESCRIPTION Active Pin No. Pin Name Application Processing Operation (H/L) Display OFF, Key reset, TDF panel OFF : L VFD RST Reset output to VFD driver Display ON, Key scan : H VFD CE Chip enable output to VFD driver...
  • Page 6 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A MICROCOMPUTER’S TERMINAL DESCRIPTION Active Pin No. Pin Name Application Processing Operation (H/L) Refer to “CD MECHA CONTROL OPERATION” CD LOEJ CD motor control on the TRUTH TABLE Refer to “CD MECHA CONTROL OPERATION” CD MOTOR CD motor control on the TRUTH TABLE CD mecha µ-com reset...
  • Page 7 MICROCOMPUTER’S TERMINAL DESCRIPTION TRUTH TABLE • TUN TYPE TYPE 1 TYPE 2 General models commercially-designated as pure KENWOOD brand (Initial value) Initial value setting • RDS AFSL (AF search) Normal condition communication (IC10 side : High) High (Quality time constant long / Stereo Decoder PLL : Not hold)
  • Page 8 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A MICROCOMPUTER’S TERMINAL DESCRIPTION CD MECHANISM µ-COM : IC1 on X32- (CD PLAYER UNIT) Active Pin No. Pin Name Application Processing Operation (H/L) VREFL Reference power supply input terminal for ADC (L). AVSS GND terminal for ADC. AVCC Power supply terminal for ADC.
  • Page 9 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A MICROCOMPUTER’S TERMINAL DESCRIPTION Active Pin No. Pin Name Application Processing Operation (H/L) L : Correction is possible. FLAGIN C2Err impossibility detection. H : Correction is impossible. 51~61 DVSS GND. Non-maskable interrupt request. DVCC Power supply terminal. 65~77 NC/BOOT Mask : Not connected.
  • Page 10: Test Mode

    KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A TEST MODE How to enter the test mode PRESET • When pressed for less than 1 second : CD EJECT While simultaneously press PRESET “1” key and PRESET “3” “5” key number display key, press “RESET” button. (Display) : EJC x x x x x...
  • Page 11 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A SPECIAL MODE Security (KDC-W4531/W4531Y only) DC offset error detection confirmation mode • How to enter the forced POWER ON mode Confirmation mode : While depressing PRESET “3” key and PRESET “6” key While “– – – –” is being displayed, while simultaneously simultaneously, press on the “RESET”...
  • Page 12 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A ADJUSTMENT After replacing the following parts, adjust as follows. 1st AM MIX / 2nd AM MIX ADJUSTMENT ADJUSTMENT POINT : L508 (1st AM MIX) / L509 (2nd AM MIX) REPLACED PARTS ADJUSTMENT ITEMS VOLTAGE VALUE CHECK POINT : S-METER check land (X34-) Ref.
  • Page 13 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A PC BOARD (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) SWITCH UNIT X16-2932-7x (J76-0055-02) SWITCH UNIT X16-2932-7x (J76-0055-02) PAN-SW5V FL-SW9.8V LED+B PAN5V FL+B X16-2932-7x X16-2932-7x DATAS Ref. No. Address Ref. No. Address REMO RTRY-CCW TDF-DET ESD-GND Refer to the schematic dia- gram for the values of resis- tors and capacitors.
  • Page 14 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X34-3402-7x (J76-0048-12) J1/L51 W351 W312 W352 W335 W423 W251 C256 W252 C257 C258 C255 W398 R254 R253 W405 W406 W346 R273 R252 R257 R251 R271 W331 Q252 W333 W317 W323 W340...
  • Page 15 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A 2 3 4 8 12 11 13 W251 Q352 Q351 C521 L505 L518 C303 C525 L600 C507 D503 L501 L520 Q330 W306 C516 C332 L506 R594 C604 D504 C626 C331 C527 W823 C503 L507 L502 C625 X34-3402-7x C504...
  • Page 16 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A PC BOARD (COMPONENT SIDE VIEW) CD PLAYER UNIT X32-5500-00 (J74-1552-12) RFOK CP12 CP13 CP15 MIACK X32-5500-00 Ref. No. Address Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 17 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A PC BOARD (FOIL SIDE VIEW) CD PLAYER UNIT X32-5500-00 (J74-1552-12) Vref FLAG HOLD MIRR LOCK TRK IN TRK OUT FCS DOWN FCS UP C22 C23 D3.3V DAVdd3.3V SDIO BCKIA 12EJE A.+8V LRCKIA /EJECT SLED IN SLED OUT A.GND...
  • Page 18 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A DAUGHTER UNIT (X89-2690-10) ELECTRIC UNIT (X34-3xxx-xx) 2-PREOUT MUTE L602 C221 R229 R221 10u16 Q221 CN91 CN90 4.7K L509 MUTE CF51 CF52 2 VDD L508 Q222 CF53 10.700MHz 10.700MHz Q225 10.700MHz W101 4.7K C222 R230 R222 10u16 CF54 450.000kHz...
  • Page 19 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A L602 D203 C201 0.01 3,43 TP404 MUTE LOGIC CF54 000kHz S-METER 4.5V ∗ R431 C565 TP408 ∗ R471 ∗ R470 C512 2.2K 10u16 5.0V TUN SMETER TP411 0.5V or RDS NOISE TUN SD 5.0V TYPE 1 LX RST 1.6V...
  • Page 20 D203,259,260 1SS133 R252 TP31 D401 B30-1567-05 Q252 D501 RN739F D502,503 KP2311ETR-G D504 KV1430STL-G CONTROL STBY D506 HVC383B-E SIGNAL LINE R141 R140 R139 R138 R137 R136 R135 GND LINE FL+B B LINE KDC-W4031/W4031Y/W409/W409Y/W431GY/W4531/W4531Y/WF431A (1/2) UMC2N DAN202U DA204U TC7SH08FU DTA114YUA X34-3402-7x (3/4)
  • Page 21 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A (X34-3xxx-xx) CATEGORY/ DESTI- C333, C605, D72, MODEL NAME X34-340x-xx X34-341x-xx X34-365x-xx C152 C255 C526 C604 606 CN3 D162 D260 Q151 FUNCTION NATION E303/S 0-01 YES YES YES YES YES YES YES YES 784225GC256A KDC-MP2028 0-10 YES YES YES YES YES...
  • Page 22 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A SWITCH UNIT (X16-293x-xx) ANODE CONNECTION 3GA,3GB 1GA,1GB NAME — col (Downside) (3GB/1GB/3GA/2G) R80 33 R82 33 col (Upside) — — — — — REMOTE ∗ SW5V SENSOR (14-SEGMENT) KEY MATRIX DISP ∗ Q or EQ EJECT 100K PANEL...
  • Page 23 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A CAUTION : For continued safety, re- place safety critical components only with manufacturer’s recommended parts (refer to parts list). Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measure- ments shall be carried out (exposed parts...
  • Page 24 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A CD PLAYER UNIT (X32-5500-00) LEVEL SHIFT (DA) 0V (3.3V 5.0V) IOP1 IOP2 R34 4.7K (MP3) 0/3.3V C28 10 LEVEL SHIFT (3.3V 5.0V) 16.00MHz R35 100K 3.3V 0.2V 100K RESET 3.3V 3.8/0V 3.3V AVDD1 DGND1 2.4/0V 1000P 3.3V RFOK RFOK 3.3V...
  • Page 25 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A Q9,10 Vref DPU1(X92- ) 1.7Vp-p 390K OPTICAL 6800P PICKUP 0.3Vp-p 1.65V 1.65V RF2- 1.65V 1.0Vp-p FCS+ 1.0Vp-p TRK+ 3.9K TRK- 1.7Vp-p 3.3V FCS- 3300P ADVDD 3.3V 1.65V 0.01 3.0/0.3V 0.01 ADGND 91CW12AFG-5AR1 3.3/0V UPD63712GC TEST0 RF AMP/SERVO TC94A20F-010...
  • Page 26 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A EXPLODED VIEW (CD MECHANISM) DPU1 DFPC1 (X32) φ : N09-4460-05 : N09-4472-15 M1.7x8.0 M1.7x2.5 : N09-6004-05 M2x2 : N09-6007-05 φ : N09-6051-05 2x5(BLK) : N19-2163-04 1.6 WASHER : N39-2020-46 M2x2 : N09-6108-05 M2x3.5 φ : N09-6155-05 Parts with the exploded numbers larger than 700 are not supplied.
  • Page 27 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A EXPLODED VIEW (UNIT) DME1 : N29-0205-04 : N80-2006-48 : N80-2008-43 : N83-3005-48 : N86-2610-48 : N80-3010-48 : N83-3005-48 : N83-3020-48 : N86-2606-48 (X34) (X16-) (X34-) Depends on the model. Refer to the parts list. Parts with the exploded numbers larger than 700 are not supplied.
  • Page 28: Parts List

    PROTECTION BAG (280X450X0.03) E3E6 D49-51 B30-1567-05 LED (RED) E : KDC-W4531 E1 : KDC-W4031 E2 : KDC-W409 E3 : KDC-W431GY E6 : KDC-WF431A Indicates safety critical components. E7 : KDC-W4531Y E8 : KDC-W4031Y E9 : KDC-W409Y (E : Europe K : North America...
  • Page 29 C61,62 CK73GB1H102K CHIP C 1000PF E : KDC-W4531 E1 : KDC-W4031 E2 : KDC-W409 E3 : KDC-W431GY E6 : KDC-WF431A Indicates safety critical components. E7 : KDC-W4531Y E8 : KDC-W4031Y E9 : KDC-W409Y (E : Europe K : North America...
  • Page 30 RK73GB2A152J CHIP R 1.5K J 1/10W E : KDC-W4531 E1 : KDC-W4031 E2 : KDC-W409 E3 : KDC-W431GY E6 : KDC-WF431A Indicates safety critical components. E7 : KDC-W4531Y E8 : KDC-W4031Y E9 : KDC-W409Y (E : Europe K : North America...
  • Page 31 C601 CK73GB1E223K CHIP C 0.022UF K E : KDC-W4531 E1 : KDC-W4031 E2 : KDC-W409 E3 : KDC-W431GY E6 : KDC-WF431A Indicates safety critical components. E7 : KDC-W4531Y E8 : KDC-W4031Y E9 : KDC-W409Y (E : Europe K : North America...
  • Page 32 JUMPER WIRE RK73GB2A223J CHIP R J 1/10W E : KDC-W4531 E1 : KDC-W4031 E2 : KDC-W409 E3 : KDC-W431GY E6 : KDC-WF431A Indicates safety critical components. E7 : KDC-W4531Y E8 : KDC-W4031Y E9 : KDC-W409Y (E : Europe K : North America...
  • Page 33 R504 RK73GB2A4R7J CHIP R J 1/10W E : KDC-W4531 E1 : KDC-W4031 E2 : KDC-W409 E3 : KDC-W431GY E6 : KDC-WF431A Indicates safety critical components. E7 : KDC-W4531Y E8 : KDC-W4031Y E9 : KDC-W409Y (E : Europe K : North America...
  • Page 34 0 OHM J 1/16W E9 D254 AM01ZNF DIODE EE1E2 E : KDC-W4531 E1 : KDC-W4031 E2 : KDC-W409 E3 : KDC-W431GY E6 : KDC-WF431A Indicates safety critical components. E7 : KDC-W4531Y E8 : KDC-W4031Y E9 : KDC-W409Y (E : Europe K : North America...
  • Page 35 MACHINE SCREW (M2 3.5) N09-6155-05 SEMS (TAPTITE SCREW) (PT2X6) E : KDC-W4531 E1 : KDC-W4031 E2 : KDC-W409 E3 : KDC-W431GY E6 : KDC-WF431A Indicates safety critical components. E7 : KDC-W4531Y E8 : KDC-W4031Y E9 : KDC-W409Y (E : Europe...
  • Page 36 DC MOTOR (LOADING) DPU1 X93-2010-00 OPTICAL PICKUP ASSY E : KDC-W4531 E1 : KDC-W4031 E2 : KDC-W409 E3 : KDC-W431GY E6 : KDC-WF431A Indicates safety critical components. E7 : KDC-W4531Y E8 : KDC-W4031Y E9 : KDC-W409Y (E : Europe K : North America...
  • Page 37 KDC-W4031/W4031Y/W409/W409Y KDC-W431GY/W4531/W4531Y/WF431A 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...
  • Page 38: Specifications

    MP3 Decode ..Compliant with MPEG-1/2 Audio Layer-3 WMA Decode ..Compliant with WINDOWS MEDIA AUDIO KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. KENWOOD CORPORATION 2967-3, Ishikawa-machi, Hachioji-shi, Tokyo, 192-8525 Japan KENWOOD USA CORPORATION KENWOOD ELECTRONICS ITALIA S.p.A.