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Kenwood KDC-1028 Service Manual
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Kenwood KDC-1028 Service Manual

Kenwood KDC-1028 Service Manual

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Table of Contents

See also: Instruction Manual
CD RECEIVER
KDC-1028
KDC-128
KDC-128CR
KDC-129/S
KDC-229
SERVICE MANUAL
PANEL ASSY
KDC-1028 (A64-3445-02)
VOL
AUD
SET UP
FF
SCAN
PANEL ASSY
KDC-128CR (A64-3467-02)
VOL
AUD
SET UP
FF
SCAN
PANEL ASSY
KDC-229 (A64-3451-02)
VOL
AUD
SET UP
FF
SCAN
MOUNTING HARDWARE ASSY
(J21-9716-03)
DC CORD
(E30-6415-15)
* Depends on the model. Refer to the parts list.
/AUTO
AME
RDM
REP
/AUTO
AME
RDM
REP
/AUTO
AME
RDM
REP
PLASTIC CABINET ASSY
(A02-2736-03)
* ESCUTCHEON
LEVER
(B07-xxxx-xx)
(D10-4589-04) x2
© 2004-12 PRINTED IN JAPAN
B53-0233-00 ( N ) 1033
PANEL ASSY
KDC-128 (A64-3446-02)
VOL
AUD
SET UP
SCAN
FF
PANEL ASSY
KDC-129 (A64-3452-02)
KDC-129S (A64-3453-02)
VOL
AUD
SET UP
SCAN
FF
SPARE TDF PANEL
MAIN UNIT NAME
TDF PARTS No.
KDC-1028
Y33-2120-66
KDC-128
Y33-2120-67
KDC-128CR
Y33-2120-68
KDC-129
Y33-2130-65
KDC-129S
Y33-2130-66
KDC-229
Y33-2130-65
* REMOTE CONTROLLER ASSY (RC-507)
(A70-2070-05)
SCREW SET
(N99-1757-05)
This product uses Lead Free solder.
/AUTO
AME
RDM
REP
/AUTO
AME
RDM
REP
TDF NAME
TDF-51DB
TDF-51D
TDF-51DCR
TDF-229
TDF-129S
TDF-229
BATTERY
(Not supplied)
SCREW (4x16)
(N84-4016-48)

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Summary of Contents for Kenwood KDC-1028

  • Page 1 CD RECEIVER KDC-1028 KDC-128 KDC-128CR KDC-129/S KDC-229 SERVICE MANUAL © 2004-12 PRINTED IN JAPAN B53-0233-00 ( N ) 1033 PANEL ASSY PANEL ASSY KDC-1028 (A64-3445-02) KDC-128 (A64-3446-02) /AUTO /AUTO SET UP SET UP SCAN SCAN PANEL ASSY PANEL ASSY KDC-128CR (A64-3467-02)

  • Page 2: Block Diagram

    KDC-1028/128/128CR KDC-129/129S/229 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: Components Description

    KDC-1028/128/128CR KDC-129/129S/229 COMPONENTS DESCRIPTION ELECTRIC UNIT (X34-3xxx-xx) 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 For other models.

  • Page 4: Microcomputer's Terminal Description

    KDC-1028/128/128CR KDC-129/129S/229 COMPONENTS DESCRIPTION SWITCH UNIT (X16-2940-xx) Ref. No. Application / Function Operation / Condition VFD DRIVER REMOTE SENSOR GREEN LED SW “ON” when the base goes “H”. RED LED SW “ON” when the base goes “H”. PAN SW5V “ON” when the base goes “H”.
  • Page 5 KDC-1028/128/128CR KDC-129/129S/229 MICROCOMPUTER’S TERMINAL DESCRIPTION Active Pin No. Pin Name Application Processing Operation (H/L) AUD SCL Volume + tuner I2C clock input and output PWIC STBY Power IC standby output Power IC ON : H, Power IC OFF : L...
  • Page 6 TYPE 2 General models commercially-designated as pure KENWOOD brand (Initial value) Initial value setting General models commercially-designated as pure KENWOOD brand (CRSC is changed) Multi-Path Band-Path Gain=12dB, Multi-Path Charge Current=0.4µA, De-Emphasis=75µS • POWER SUPPLY IC (IC3) CONTROL • CD MECHA CONTROL OPERATION SEL1 (Pin No.

  • Page 7: Cd Mechanism Μ-Com : Ic2 On X32- (Cd Player Unit)

    KDC-1028/128/128CR KDC-129/129S/229 MICROCOMPUTER’S TERMINAL DESCRIPTION CD MECHANISM µ-COM : IC2 on X32- (CD PLAYER UNIT) Active Pin No. Pin Name Application Processing Operation (H/L) Traverse drive output (PWM output). Spindle motor drive output (PWM output). No connection. Multipurpose PWM output.
  • Page 8 KDC-1028/128/128CR KDC-129/129S/229 MICROCOMPUTER’S TERMINAL DESCRIPTION Active Pin No. Pin Name Application Processing Operation (H/L) 8EJE SW 12EJE/SDET SW Loading-end detection / H : Loading-end detection LOE/LIM SW Pick-up inner circumference detection. L : Pick-up inner circumference detection 45~49 No connection.

  • Page 9: Test Mode

    KDC-1028/128/128CR KDC-129/129S/229 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) : _ _ _ X xxxx...
  • Page 10 KDC-1028/128/128CR KDC-129/129S/229 SPECIAL MODE ADJUSTMENT After replacing the following parts, adjust as follows. DC offset error detection confirmation mode Confirmation mode : While depressing PRESET “3” key and PRESET “6” key REPLACED PARTS ADJUSTMENT ITEMS simultaneously, press on the “RESET” button.
  • Page 11 KDC-1028/128/128CR KDC-129/129S/229 PC BOARD (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) SWITCH UNIT X16-2940-xx (J76-0055-02) SWITCH UNIT X16-2940-xx (J76-0055-02) PAN-SW5V FL-SW9.8V LED+B PAN5V FL+B X16-2940-xx X16-2940-xx 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 12 KDC-1028/128/128CR KDC-129/129S/229 PC BOARD (FOIL SIDE VIEW) ELECTRIC UNIT X34-3xxx-xx (J76-0048-12) DAUGHTER UNIT X89-2690-10 (J76-0057-02) J1/L51 W351 W352 W423 R230 R229 R226 R225 W101 W398 W405 W406 W346 R222 R221 R273 R252 R257 R251 R271 Q252 W333 W340 W318 L101...
  • Page 13 KDC-1028/128/128CR KDC-129/129S/229 W312 W335 2 3 4 8 12 11 13 W251 C256 W252 C257 C258 C255 R254 R253 Q352 Q351 C521 W346 R257 L505 L518 C303 C525 L600 W331 C507 D503 L501 L520 W333 Q330 W317 W306 W323 C516...

  • Page 14: Pc Board (Component Side View)

    KDC-1028/128/128CR KDC-129/129S/229 PC BOARD (COMPONENT SIDE VIEW) CD PLAYER UNIT X32-5750-00 (J76-0059-02) X32-5750-00 Ref. No. Address Refer to the schematic diagram for the values of resistors and capacitors.
  • Page 15 KDC-1028/128/128CR KDC-129/129S/229 PC BOARD (FOIL SIDE VIEW) CD PLAYER UNIT X32-5750-00 (J76-0059-02) SLED DRVMUTE SPDL LOE/LIM A.GND A.+8V C100 R100 /MRST /MSTOP SLED OUT /MUTEL /LOAD /MUTER SLED IN /EJECT BU.5V Vref 2 GCTL NRFDET RFENV TRCRS R8 R11 VDET...
  • Page 16 KDC-1028/128/128CR KDC-129/129S/229 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 17 KDC-1028/128/128CR KDC-129/129S/229 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 18 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-1028/128/128CR/129/129S/229 (1/2) DTA124EUA UMC2N DAN202U DA204U DTC124EUA DTA114YUA X34-3xxx-xx (3/4)
  • Page 19 KDC-1028/128/128CR KDC-129/129S/229 (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 20 KDC-1028/128/128CR KDC-129/129S/229 SWITCH UNIT (X16-294x-xx) (3G) (1GB) (2G) R80 33 R82 33 ∗ REMOTE TP32 SW5V SENSOR (7-SEGMENT) KEY MATRIX DISP Q or EQ EJECT PANEL TP31 ILL D GND TP30 PAN5V 11.25V TP29 R77 1K RTRY CW TP41 TP28...
  • Page 21 KDC-1028/128/128CR KDC-129/129S/229 CAUTION : For continued safety, re- ANODE CONNECTION place safety critical components only 2G 1GA,1GB NAME with manufacturer’s recommended parts — (refer to parts list). — Indicates safety critical components. — — To reduce the risk of electric shock, —...
  • Page 22 KDC-1028/128/128CR KDC-129/129S/229 CD PLAYER UNIT (X32-5750-00) RFENV D.GND C34 0.1 4.80V C32 0.1 BU+5V 470P 470P L.P.F. 3.10V 1.25V 2.40V 3.10V 3.10V 1.70V IREF R100 C100 8EJE SW 3.10V 1000P PLLF2 12EJE/SDET SW PLLF 3.84V 4.7K 4.80V 7.80V LOE/LIM SW 0.87pp...
  • Page 23 KDC-1028/128/128CR KDC-129/129S/229 CAUTION : For continued safety, replace safety critical compo- nents only with manufacturer’s IOP+ IOP- recommended parts (refer to R7 3.6K parts list). Indicates safety critical com- ponents. To reduce the risk of 3.3K electric shock, leakage-current or resistance measurements shall be carried out (exposed C45 0.1...
  • Page 24 KDC-1028/128/128CR KDC-129/129S/229 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 25: Exploded View (Unit)

    KDC-1028/128/128CR KDC-129/129S/229 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) (X89-) (X16-) (X34-) Depends on the model. Refer to the parts list. Parts with the exploded numbers larger than 700 are not supplied.

  • Page 26: Parts List

    J 1/10W H25-0329-04 PROTECTION BAG (280X450X0.03) H25-0337-04 PROTECTION BAG (180X300X0.03) RK73GB2A102J CHIP R 1.0K J 1/10W K4K5K6 H54-3289-03 ITEM CARTON CASE (KDC-1028) K4 RK73GB2A471J CHIP R J 1/10W H54-3290-03 ITEM CARTON CASE (KDC-128) K5 RK73GB2A104J CHIP R 100K J 1/10W K4K5K6...
  • Page 27 C77,78 CK73GB1C104K CHIP C 0.10UF R100 RK73GB2A100J CHIP R J 1/10W K4 : KDC-1028 K5 : KDC-128 K6 : KDC-128CR M4 : KDC-229 M5 : KDC-129 M6 : KDC-129S Indicates safety critical components. (E : Europe K : North America...
  • Page 28 C503 CK73GB1C104K CHIP C 0.10UF C601 CK73GB1H223K CHIP C 0.022UF K K4 : KDC-1028 K5 : KDC-128 K6 : KDC-128CR M4 : KDC-229 M5 : KDC-129 M6 : KDC-129S Indicates safety critical components. (E : Europe K : North America...
  • Page 29 L520 L40-3381-58 SMALL FIXED INDUCTOR (0.33UH) R193,194 RK73GB2A474J CHIP R 470K J 1/10W K4 : KDC-1028 K5 : KDC-128 K6 : KDC-128CR M4 : KDC-229 M5 : KDC-129 M6 : KDC-129S Indicates safety critical components. (E : Europe K : North America...
  • Page 30 RK73GB2A432J CHIP R 4.3K J 1/10W W826 R92-2053-05 CHIP R 0 OHM J 1/8W K4 : KDC-1028 K5 : KDC-128 K6 : KDC-128CR M4 : KDC-229 M5 : KDC-129 M6 : KDC-129S Indicates safety critical components. (E : Europe K : North America...
  • Page 31 DAMPER Q252 2SA1603A TRANSISTOR Q330 DTA124EUA DIGITAL TRANSISTOR G01-3072-04 EXTENSION SPRING K4 : KDC-1028 K5 : KDC-128 K6 : KDC-128CR M4 : KDC-229 M5 : KDC-129 M6 : KDC-129S Indicates safety critical components. (E : Europe K : North America...
  • Page 32 SEMS (TAPTITE SCREW) (PT2X6) T42-1066-04 DC MOTOR (SPINDLE) T42-1067-04 DC MOTOR (LOADING) DPU1 X93-2010-00 OPTICAL PICKUP ASSY K4 : KDC-1028 K5 : KDC-128 K6 : KDC-128CR M4 : KDC-229 M5 : KDC-129 M6 : KDC-129S Indicates safety critical components. (E : Europe...
  • Page 33 KDC-1028/128/128CR KDC-129/129S/229 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 34: Specifications

    (Depth) ............155mm Weight ............... 1.40kg (3.1 lbs) Weight ............... 1.40kg (3.1 lbs) 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.

This manual is also suitable for:

Kdc-128crKdc-129/sKdc-229Kdc-128

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