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Kenwood RXD-M57MP-H Service Manual

Compact hi-fi component system
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COMPACT Hi-Fi COMPONENT SYSTEM
RXD-M57MP-H/M57MP-S
SERVICE MANUAL
(HM-537MP)
CD Door *
(A29-)
Knob(Power)
(K29-8417-08)
Knob(Function)
(K29-8414-08)
Knob(Play) *
(K29-)
Phone jack
(E11-0981-08)
Knob(Stop/REC)
(K29-8415-08)
Cass lid ass'y *
(A53-)
* Refer to parts list on page 20.
In compliance with Federal Regulations, following are repro-
duction of labels on, or inside the product relating to laser
product safety.
Caution : No connection of ground line if disassemble
the unit. Please connect the ground line on
rear panel, PCBs, Chassis and some others.
Rubber foot
(G11-2961-08)
KENWOOD Corp. certifies this equipment conforms to DHHS
Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.
© 2004-8 PRINTED IN KOREA
B51-5923-00 (K/K) 339
Front cabinet ass'y *
(A60-)
Knob(Open/Close)
(K29-8416-08)
Knob(EQ/Bass) *
(K29-)
Knob(Volume)
(K29-8413-08)
Control panel *
(A21-)
Knob(Demo) *
(K29-)
Knob(Prog) *
(K29-)
70%

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  Summary of Contents for Kenwood RXD-M57MP-H

  • Page 1 * Refer to parts list on page 20. In compliance with Federal Regulations, following are repro- KENWOOD Corp. certifies this equipment conforms to DHHS duction of labels on, or inside the product relating to laser Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J.
  • Page 2: Table Of Contents

    (Accessory only for regions where use is necessary.) SYSTEM CONFIGURATION SYSTEM RECEIVER SPEAKERS HM-537MP-H RXD-M57MP-H LS-M57-H HM-537MP-S RXD-M57MP-S LS-M57-S CAUTIONS Resetting the Microcomputer The microcomputer may malfunction (unit can- CLASS 1 LASER PRODUCT...
  • Page 3: External View

    RXD-M57MP EXTERNAL VIEW FM 75 ohm Ant. (E70-0200-08) Top cabinet (A01-3943-08) Rear cabinet (A80-4494-08) VOLTAGE SELECTOR 110-120V Voltage SW. * (S62-0124-08) 220-240V * Refer to parts list on page 20.
  • Page 4 RXD-M57MP ADJUSTMENT SERVICE ADJUSTMENT Lubrication The mechanical parts are factory coated with a thin coat of light grease and should not require further lubrication. If a light grease is applied, be careful not to get any grease on the play/record head or erase head, hubs, pulleys, tapes reels, drive belts, or switches.
  • Page 5: Adjustment

    RXD-M57MP ADJUSTMENT 2. Insert a 10 kHz test tape (Teac MTT-1141V or Equivalent) into the tape mechanism and play it back. 3. While playing back the test tape, slowly turn the azimuth adjusting screw until the amplitude of both channel output waveforms is maximum and in phase. Note: Reiteration adjusting Right, lift the screw, until the amplitude of both channel output waveform is maximum.
  • Page 6 RXD-M57MP ADJUSTMENT TUNER ALIGNMENT PROCEDURE Equipment needed: 1. AM Signal generator 2. FM Signal generator 3. DC Voltage meter 4. Oscilloscope 5. Output meter (VTVM) AM Alignment Step S/G Frequency Dial Setting Indicator Adjust Remarks 450 kHz (1 kHz 30% mod.) 612 kHz Connect T101...
  • Page 7 RXD-M57MP ADJUSTMENT FM Alignment: TEST UNIT GROUND Figure 5. FM Band Frequency Coverage Alignment Connect FM S/G to ANT inputs (mod 1 kHz 22.5kHz dev.) Step S/G Frequency Dial Setting Indicator Adjust Remarks 87.5 MHz Low end Connec t DC Voltage Confirm Vt: 1.7 ±...
  • Page 8 PC BOARD (Component side view) CN501 HEADPHONE CN403 L405 L406 L408 JK400 R521 R520 R500 R519 R517 R518 R524 R509 R510 JACK2 R511 R508 R507 R506 R505 R504 R503 R522 R501 R502 R523 R512 Refer to the schematic diagram for the value of resistors and capacitors.
  • Page 9: Pc Board

    PC BOARD(Component side view) MAIN C116 T101 FP101 L104 Q103 Q105 GND2 AM VT C123 Q112 C111 C113 L106 C142 GND1 C165 OSC2 FM VT R160 R170 C144 R158 Q109 R155 C115 C155 R111 C119 L108 C105 C157 C158 C176 C170 C177 R113...
  • Page 10: Schematic Diagram

    PC BOARD(Component side view) POWER IC707 Q705 R790 L703 C923 C738 C736 C771 R732 CN704 C748 R729 C739 R730 C737 R733 R789 R797 R731 R738 R740 R742 IC703 R783 R796 R781 IC704 R798 C741 R782 30 31 R728 C774 R795 C773 C721 C772...
  • Page 11 RXD-M57MP C792 R793 10K R739 10K 0.022 CN703 R737 10K IC704 CDRW CDRW R736 10K RFN2 C721 R731 10K R711 10K 0.022 C780 R735 10K 100u16 R730 68K CN704 RFGC R715 10K PICKUP C723 C722 V-CEN R782 47u16 47u16 GMAD DISPLAY- R729 220K BUCK...
  • Page 12 RXD-M57MP MAIN The DC voltage is an actual reading FP101 measured with a high impedance +12V +12V type voltmeter with no signal input. R108 IC103 R128 Q107 R133 The measurement value may vary C173 3.3K R107 R172 330 R129 RCLK depending on the measuring instru- C111 L104...
  • Page 13 RXD-M57MP COM/PIN # DISPLAY COM-0 COM0 COM-1 COM1 LCD601 COM-2 COM2 CAUTION: For continued COM-3 COM3 safety, replace safety critical components only with manu- COM/PIN # facturer's recommended parts COM-0 (refer to parts list). indicates F H I safety critical components. COM-1 For continued protection COM-2...
  • Page 14 open/close SW511 COAXIAL timer timer on/off SW509 SW510 standby down SW508 SW506 SW516 EQ/X-bass SW900 TUNER TAPE φ2x8 φ2.6x5 SW512 N89-2008-46 N89-2605-46 SW501 SW502 SW500 volume φ2x4 φ3x12 N89-2004-46 N89-3012-46 SW19 φ2.6x10 φ3x8 N89-2610-46 N89-3008-46 SW507 SW517 SW504 SW513 φ2.6x8 M3x6 N85-3006-46 N89-2608-46...
  • Page 15 ✽ 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 16 ✽ 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 17 ✽ 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 18 ✽ 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 19 ✽ 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 20 ✽ 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 21: Parts List

    Transistor 805001-08050-04B MODEL ABB. Q903 2SB1240(Q) Transistor 2SB101-01240-00 Q904 8050D Transistor 805001-08050-04B ZD101 MTZJ5.1B Zener Diode 5.102-50051-00 RXD-M57MP-H ZD301 MTZJ9.1B Zener Diode 9.102-50091-00 RXD-M57MP-S ZD302 MTZJ6.2B Zener Diode 6.202-50062-00 ZD410 MTZJ5.1B Zener Diode 5.102-50051-00 ZD601 MTZJ5.1B Zener Diode 5.102-50051-00 ZD701 MTZJ3.9B...
  • Page 22: Specifications

    ........ 87.5 MHz ~ 108 MHz AM tuner section Notes: Tuning frequency range KENWOOD follows a policy of continuous (For the Europe and Australia) advancements in development. For this reason ......... 531 kHz ~ 1,602 kHz specifications may be changed without notice.

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Rxd-m57mp-s