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Kenwood RXD-402 Service Manual

Mini hifi component system.
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MINI HiFi COMPONENT SYSTEM
RXD-402/402E/402W/452/452E/452W/502/502E/
RXD-502W/552/552E/552W/572S/A41/A51
SERVICE MANUAL
(XD-402~A51) **
Knob
(K29-7545-04)
Phone jack
(E11-0280-05)
Knob
(K29-7544-04)
Front glass
(B10-3448-02)
Cassette lid (L)
(A53-2121-02)
Knob
(K29-7553-01)
Panel *
(A60-)
**Refer to page 2 if you want to know system configuration.
In compliance with Federal Regulations, following are reproduc-
tions of labels on, or inside the product relating to laser product
safety.
Knob
(K29-7541-02)
KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM
© 1999-1/B51-5500-00 (K/K) 3590
Front glass
(B10-)
Illustration is RXD-402.
* Refer to parts list on page 48~.
Knob
(K29-7543-04)
Knob
(K29-7541-02)
Front glass
(B10-3449-02)
Cassette lid (R)
(A53-2122-02)
Front glass
(B10-3471-03)
Panel (CD)
(A29-1046-02)

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   Summary of Contents for Kenwood RXD-402

  • Page 1

    **Refer to page 2 if you want to know system configuration. In compliance with Federal Regulations, following are reproduc- KENWOOD-Crop. certifies this equipment conforms to DHHS tions of labels on, or inside the product relating to laser product Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.

  • Page 2: Table Of Contents

    RXD-402/452/502/552/572S/A41/A51 CONTENTS / ACCESSORIES / CAUTIONS Contents CONTENTS/ACCESSORIES/CAUTIONS....2 PC BOARD ..............15 EXTERNAL VIEW/DISASSEMBLY FOR REPAIR..3 SCHEMATIC DIAGRAM ..........23 BLOCK DIAGRAM ............4 EXPLODED VIEW .............44 CIRCUIT DESCRIPTION ..........5 PARTS LIST...............48 ADJUSTMENT ............10 SPECIFICATIONS .............59 WIRING DIAGRAM ............14 Accessories FM indoor antenna (1)

  • Page 3: External View/disassembly For Repair

    (E70-0053-05) (E20-0321-05) Phono jack (E63-1037-05) Oscillating module (W02-1114-05) Illustration is RXD-402. DISASSEMBLY FOR REPAIR HOW to open the tray if not comes out. (1) Turn the friction arm counterclockwise BOTTOM SIDE using a screw driver and the like. (2) Pull out the tray front wards by hand when the tray comes just out.

  • Page 4

    A-N/C FL AC PH A,B PH A,B MOTOR A MOTOR B TAPE SPEED FAST OFF MOTOR MOTOR PSLOAD A,B CrCO2 PSIN u-COM +5.6V AVR L REC HD74HC166P R REC SOL A,B SOL A,B A,B PACK AC IN A,B PLAY RXD-402/502...

  • Page 5: Circuit Description

    RXD-402/452/502/552/572S/A41/A51 CIRCUIT DESCRIPTION 1. Initialization 2. Destination list of TUNER Destinat- Tuner Receiving Channel BAND 1-1 Setting of initial conditions type frequency range space While pressing the [ENTER] key, put the plug into an AC 87.5MHz~108.0MHz 100kHz +10.7MHz 25kHz power outlet.

  • Page 6

    REV.MODE • • • volume min+1step Unplug an AC power cord from an AC power outlet. DOLBY • • • • • • volume 14 *RXD-402(TAPE E.Q.) 3-2-3 Condition in test mode A/B • • • • • • • • • volume20 (1) Initial condition REC/ARM •...

  • Page 7

    RXD-402/452/502/552/572S/A41/A51 CIRCUIT DESCRIPTION 4. Main microprocessor 4-1 Microprocessor periphery block diagram X28, IC1 X14, IC51 X13, IC1 X04, IC2 TUNER PACK IC2 X14, IC52, 53 X04, IC7 X28, IC4 EXPANDER X04, IC3 SERIES 4-2 Key matrix...

  • Page 8

    RXD-402/452/502/552/572S/A41/A51 CIRCUIT DESCRIPTION 4-3 Pin description of microprocessor: M30622MA-173FP (X13, IC1) Pin No. Name Description Active S.LEVEL RDS S level input. PLL DO PLL IC data input. SD detector input. Stereo detector input. PLL CE PLL IC chip enable. RDS DATA RDS data input.

  • Page 9

    RXD-402/452/502/552/572S/A41/A51 CIRCUIT DESCRIPTION Pin No. Name Description Active A-JOG2 Jog A (S28) input. B-JOG1 Jog B (S29) input. B-JOG2 Jog B (S29) input. 57,58 ENC1,2 Rotary encoder(S27) input. LEDCLK Clock output to LED controller(IC52,53). 60,61 LEDDT1,2 Data output to LED controller(IC52,53).

  • Page 10: Adjustment

    RXD-402/452/502/552/572S/A41/A51 ADJUSTMENT Amp adjustment INPUT OUTPUT AMPLIFIER ALIGNMENT ITEM ALIGN FOR FIG. SETTINGS SETTINGS SETTINGS POINTS Unless otherwise specified, the individual switches should be set as following : POWER : ON SELECTOR : CD Connect a DC voltmeter to VR1 (L) IDLE CURRENT –...

  • Page 11: Tuner Adjustment

    RXD-402/452/502/552/572S/A41/A51 ADJUSTMENT Tuner adjustment X04-1313 Q TYPE (65MHz~74MHz BAND) INPUT OUTPUT TUNER ALIGNMENT ITEM ALIGN FOR FIG. SETTINGS SETTINGS SETTINGS POINTS Adjust it the 69 MHz, Connect a frequency AUTO frequency counter 70 dBf (ANT INPUT) counter to VCO monitor...

  • Page 12

    RXD-402/452/502/552/572S/A41/A51 ADJUSTMENT CD player adjustment INPUT OUTPUT PLAYER ALIGNMENT ITEM ALIGN FOR FIG. SETTING SETTING SETTING POINT Step 1,2 are in TEST MODE TEST MODE : While pressing the [CD PALY] key, plug the AC power cord into the AC power wall outlet.

  • Page 13: Pc Board

    RXD-402/452/502/552/572S/A41/A51 ADJUSTMENT Cassette Deck adjustment DECK ALIGNMENT INPUT OUTPUT ALIGN FOR ITEM FIG. POINT SETTING SETTING SETTING Unless otherwise specified, set the respective switches as follows: 0dBs=0.775V TAPE : NORMAL DOLBY : OFF PLAY OUT : Lch (X28,CN6 @pin), Rch (X28,CN6 C pin) ø.

  • Page 14

    (M,M1,Y) TYPE DESTINATION COUNTRY ABB. EUROPE 2-71 AUSTRALIA UNIT No. UNIT No. 0-11 COUNTRY ABB. GENERAL MARKET 0-22 COUNTRY ABB. RXD-402 (X14-493X-XX) JAPAN 0-01 GENERAL MARKET U.S.A. EUROPE RXD-402 (X13-761X-XX) 0-11 0-11 AUSTRALIA DESTINATION CANADA JAPAN UNIT No. DESTINATION GENERAL MARKET...

  • Page 15: Schematic Diagram

    PC BOARD(Component side view) RECORD/PLAYBACK UNIT X28-2980-10 MPX UNIT X04-1313-8X C100 R108 L-OUT A.12V A.GND R-OUT B.12V B.GND R113 R114 R111 R110 R112 Refer to the schematic diagram for the value of resistors and capacitors.

  • Page 16

    PC BOARD(Component side view) X07 B/2 X07-3030-10 A/2 POWER AMPLIFIER UNIT X00 C/3 X00 B/3 R102 R131 R132 POWER SUPPLY UNIT X00-2930-10 A/3 R112 Lch ACLASS For M Except M R128 R124 R125 R126 R127 R121 R123 R122 Refer to the schematic diagram for the value of resistors and capacitors.

  • Page 17

    PC BOARD(Component side view) X13-7610-10 SUB-CIRCUIT UNIT W165 R209 R208 R221 R207 W181 W182 W180 SYSTEM CONTROLLER R129 W176 W177 R107 W178 R101 W197 W171 W188 R.D.S. W172 W189 W179 W193 W173 W190 R131 R141 W191 R132 R142 FM75 W100 10MHz W104 W124...

  • Page 18

    PC BOARD(Component side view) DISPLAY UNIT X14-4930-10 A/6 X14 E/6 R145 C163 R204 R144 R205 CN13 C155 R502 R135 C164 C156 R134 R137 R501 R136 C161 C165 R150 C158 C157 R143 C154 R141 C162 R133 C160 R140 C153 R132 R138 R142 C159 C151...

  • Page 19

    : KV1260TS2 or IC2 : LC72131M SVC342 D2-4 : HVU202A TR1 : 2SK360 MTZ5.1B TR2 : 2SC2714 DA204K TR3 : 2SC2413 2SC2412 TR7 : DTA114EKA 7.2MHz RXD-402 (K,P) TUNER PACK (W02-2674-05) : (E)TYPE 360P 0.47u 0.015 3300P 0.22u 0.018 0.47u 7.5K 0.22u 4.7K...

  • Page 20

    1SS318 : 2SC2714 : 2SC2413 MONO/ST 2SC2412 : DTC144TKA 7.2MHz : DTA114EKA : DTC123YUA TR9,10,14 : DTC143TUA TR11 DTC114TUA TR13 : 2SC4081 RXD-402 (Q) TUNER PACK (W02-2676-05) : (M)TYPE 0.012 TR14 TR11 5600P 0.012 1200P 0.033 3300P 0.018 0.22u TR15 TR10 0.47u...

  • Page 21

    : LA1837M : KV1260TS2 or SVC342 : LC72131M D2-4 : SVC220 +12V 3.3K MTZ5.1B DATA : 2SK360 DA204K : 2SC2714 1SS318 2SC2413 TR4,13 : 2SC4081 : 2SC2412 : DTC144TKA 7.2MHz : DTA114EKA : DTC123YUA TR9,10,14 : DTC143TUA TR11 DTC114TUA RXD-402 (T)

  • Page 22

    RECORD/PLAYBACK UNIT (X28-298X-XX) CAUTION: For continued safety, replace safety critical compo- nents only with manufacturer's recommended parts (refer to parts list). indicates safety critical components. For continued pro- tection against risk of fire, replace only with same type and rating fuse(s).

  • Page 23

    0-10 RXD-552W (X28-2983-81) DESTINATION R33, R113, C25, W16-19,21, W32, 1/4W UNIT No. A C E 25,28 COUNTRY ABB. RUSSIA 3-81 2.2u50 RXD-402 (X28-2980-11) 2.2u35 DESTINATION R33, R113, C25, W16-19,21, W32, UNIT No. 25,28 COUNTRY ABB. U.S.A 1.5K +12V CANADA 10 1/4W...

  • Page 24

    X28- (X04-1313-84) MPX UNIT (Q) TYPE ONLY SUB-CIRCUIT UNIT (X13-761X-XX) 12.3V +12V +12V (1/2) ROTARY TRAY'S MOTOR DRV. LODING TRAY'S MOTOR DRV. 2.2u50 1.2K REF.VOLTAGE MONITOR CHANGE-OVER (ROTARY TRAY) C23 4700P Q504 SEPARATION R19 10K 0.01 CD 4CH MPX FILTER R557 R559 5.2V...

  • Page 25

    (X13-761X-XX) 8.7V 12 11 10 9 C511 FM75 -12.3V +12V POWVCC AM ANT Q11 MUTING INTER- 12.3V FACE +12V +12V REGULATOR T.S.D MONITOR INTER- FACE VREF 0.01 POWER SUPPLY ON/OFF SWITCH 12.3V (TUNER) (BOTTOM VIEW) POWVCC 11.6V R221 R222 4.7K 4.7K DEMODULATOR MD REC OUT...

  • Page 26

    RXD-572S (X13-7610-22) LEDDT1 DESTINATION R537, C515-517, LEDCLK UNIT No. R107 A501 COUNTRY ABB. ENC2 GENERAL MARKET 0-22 W02-2676-05 ENC1 B-JOG2 5.0V RXD-402 (X13-761X-XX) B-JOG1 DESTINATION R537, C515, 1000P 2.2K UNIT No. R107 C517 A501 COUNTRY ABB. 516,530 A-JOG2 U.S.A. A-JOG1 0-10...

  • Page 27

    IDLING POWER AMPLIFIER UNIT (X07-303X-XX) (A/2) Q1,2 : 2SC2878(B) Q3,4 : 2SD2144S(U,V) Q5-8,19-21 : 2SA992(F,E) 51.2V 6.8K CURRENT 1/4W 1/4W Q9,10,17,18,22,23,31,43 PROTECTION 1/4W /CURRENT 50.5V : 2SC1845(F,E) 1.1V LIMITER Q11,12 2SC4137F50(V,W) Q13,14 3.3K Q5-8 Q15,16 1/4W Q9,10 DIFFERENTIAL -0.5V : 2SC3940A(R,S) Q13,15 AMPLIFIER VOLTAGE...

  • Page 28

    0.22 47u50 2SD2493 2SB1624 GENERAL MARKET 0-21 1.3K 10u35 0.22 47u63 2SD2493A 2SB1624A CANADA HZS18N(B2) HZS13N(B2) HZS20N(B2) HZS16N(B2) RXD-452 (X07-303X-XX) RXD-402 (X07-3030-11) DESTINATION DESTINATION R25, R39, R49, R55, C13, C41, C43, D11, W51, W53, VR1, CN3, R25, R39, R49, R55,...

  • Page 29

    X13- DISPLAY UNIT (X14-493X-XX) (A/6) ED1 BIG (SVA-15MM13) ED1 SMALL (BJ665GK) B19 B25 REPEAT TOTAL T.EQ K-PGM P5 P6 P13 P14 TOTAL PROG. 1 O.T.T. AUTO PROG. 1 2 O.T.T. AUTO (X14- ) (B/6) C57 1000P R72 10K C58 1000P R73 10K VOL.

  • Page 30

    R70,76, UNIT No. COUNTRY ABB. RUSSIA 2-71 RXD-552E (X14-4932-71) DESTINATION D53, R70,76, UNIT No. R71 ED1 COUNTRY ABB. EUROPE 2-71 RXD-402 (X14-493X-XX) DESTINATION D53, R70,76, UNIT No. COUNTRY ABB. U.S.A 0-11 CANADA SMALL EUROPE 2-72 FLAC RXD-402W (X14-4932-72) FLAC D53,...

  • Page 31: Exploded View

    RXD-402/452/502/552/572S/A41/A51 EXPLODED VIEW (CD MECHANISM) AQx2 ø 2.6x6 : N32-2606-46 ø 2x3 : N30-2003-46 WASHER : N19-1435-05 ø 2x5 : N86-2005-46 KCTB1H Parts with exploded numbers larger than 700 are not supplied.

  • Page 32

    RXD-402/452/502/552/572S/A41/A51 EXPLODED VIEW (CD MECHANISM) M2.6x14(BLK) : N89-2614-45 SCREW(SUB-L) : N09-3377-08 M2x8 : N89-2008-46 SCREW(F) : N09-3141-08 M2.6x8 : N89-2608-46 SCREW(E) : N09-3140-08 SCREW(A2) : N09-3225-05 ø2.6x6 : N09-3369-08 SCREW(A) : N09-5104-08 SCREW(J) : N09-3489-08 WASHER : N19-1490-08 WASHER : N16-0026-46...

  • Page 33

    (A MECHA) : N87-2004-46 (B MECHA) : N87-2006-46 : N19-0904-08 : N19-0905-08 : N19-1214-08 (A MECHA) (A MECHA) (B MECHA) (B MECHA) RPEH CBx2...

  • Page 34

    ANTENNA SURROUND SURROUND SPEAKER OUTPUT OPTICAL (B/2) A501 WOOFER FRONT PRE OUT SPEAKERS X13-761 787x2 AC110- AC220- 120V 240V (C/3) X04-1313-8X (Q type only) (Bx3) X07-303 (A/2) ø2.6x8 : N82-2608-46 ø3x8 : N82-3008-46 X28- X00-293 M4x6 : N86-4006-46 ø2.6x6 : N89-2606-46 ø3x6 : N89-3006-46 ø3x6(BLK)

  • Page 35

    New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.

  • Page 36

    New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.

  • Page 37

    NON-WOVEN FABRIC T90-0836-05 LEAD WIRE ANTENNA H10-7532-12 POLYSTYRENE FOAMED FIXTURE (L) T90-0837-05 LOOP ANTENNA H10-7533-12 POLYSTYRENE FOAMED FIXTURE (R) H25-1536-04 PROTECTION BAG RXD-402/402E/402W H25-1642-04 PROTECTION BAG H50-3282-04 ITEM CARTON CASE A01-3681-01 METALLIC CABINET A09-0399-08 CABINET H50-3283-04 ITEM CARTON CASE A29-1046-02...

  • Page 38

    New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.

  • Page 39

    New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.

  • Page 40

    New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.

  • Page 41

    New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.

  • Page 42

    New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.

  • Page 43

    New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. & Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.

  • Page 44

    New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.

  • Page 45: Parts List

    Letters in the destination mean the country. Numerals in the Remarks do the model. Teile ohne Parts No. werden nicht geliefert. Example: "K and P" show all models for USA and Canada, markets. "2 and 4" does all Desti- Add- models of RXD-402,-402E,-402W,-452,-452E,-452W and -A41. Ref. No Parts No. Description ress...

  • Page 46: Specifications

    Tuning frequency range ....... 153 kHz ~ 279 kHz SW Tuner section (XD-572S only) Tuning frequency range ......5.9 MHz ~ 17.9 MHz 1.KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. Notes Notes 2.Sufficient performance may not be possible at very low temperatures (0¡C or less).

  • Page 47

    B deckPlayback / recording head .......... 1 Erasing head ..............1 Fast winding time ........Approx. 115 seconds (C-60 tape) 1.KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. Notes Notes 2.Sufficient performance may not be possible at very low temperatures (0¡C or less).

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  • Alberto Mearstawy Sep 09, 2017 06:57:
    Simply wonderful, being 21:00 hours and you can continue repairing a device thanks to the generosity of this web.
    Thank you very much.