JVC MX-KC2 Service Manual
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JVC MX-KC2 Service Manual

JVC MX-KC2 Service Manual

Compact component system
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SERVICE MANUAL
COMPACT COMPONENT SYSTEM
10
2005
MB434
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17
MX-KC2
SP-MXKC2
CA-MXKC2

TABLE OF CONTENTS

COPYRIGHT © 2005 Victor Company of Japan, Limited
Area suffix
UW ----------- Brazil,Mexico,Peru
UY ------------------------ Argentina
SP-MXKC2
No.MB434
2005/10

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  • Page 1: Table Of Contents

    SERVICE MANUAL COMPACT COMPONENT SYSTEM MB434 2005 MX-KC2 Area suffix UW ----------- Brazil,Mexico,Peru UY ------------------------ Argentina SP-MXKC2 CA-MXKC2 SP-MXKC2 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION 50 W per channel, min. RMS, driven into 6 Ω at 1kHz, with no Amplifier Output Power more than 10% total harmonic distortion. (IEC 268-3) Input Sensitivity/Impedance AUX IN 400 mV/50 kΩ (1 kHz) 6 Ω - 16 Ω Speaker terminals 32 Ω...

  • Page 3: Precaution

    SECTION 1 PRECAUTION Safety Precautions (1) This design of this product contains special hardware and voltmeter. many circuits and components specially for safety purpos- Move the resistor connection to each exposed metal es. For continued protection, no changes should be made part, particularly any exposed metal part having a return to the original design unless authorized in writing by the path to the chassis, and measure the AC voltage across...

  • Page 4: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-4 (No.MB434)

  • Page 5: Disassembly

    SECTION 3 DISASSEMBLY Disassembly of the main blocks of the set Replacement of the fuses and the power IC 3.1.1 Replacing the fuses (See Fig.1) • Prior to performing the following procedure, remove the left Fuse (F901) side board. 1.6AL 250V (1) Replace the fuses inside.

  • Page 6: No.mb434)1

    3.1.4 Removing the top cover right cabinet and left cabinet (See Fig.4 and 5) (1) Remove three screws C that retain the top cover from the panel rear of the body. right cabinet left cabinet (2) Remove six screws D that retain the left cabinet from the body.
  • Page 7 3.1.5 Removing the CD changer unit (See Fig.6 to 8) • Prior to performing the following procedures, remove the top cover. Caution: Although the CD mechanism unit can be removed without re- moving the CD tray panel, it is still recommended to remove it in order to prevent damage.
  • Page 8 3.1.6 Removing the front panel assembly (See Fig.9 to 10) • Prior to performing the following procedures, remove the top cover. • Also remove the CD changer unit. (1) Disconnect the parallel wire and the cord wire from the con- nectors CN701, CN101 on the power amp.
  • Page 9 Disassembly of units and assembly inside this set 3.2.1 Removing the Main board (See Fig.11 to 12) • Prior to performing the following procedures, remove the top cover. Main board • Also remove the CD changer unit. CN603B CN604 (1) Disconnect the wires from CN603A, on the Main board, which is located on the back side of the CD changer unit.
  • Page 10 3.2.2 Removing the CD changer mechanism assembly (See Fig.13 to 14) • Prior to performing the following procedures, remove the top cover. CD changer unit • Also remove the CD changer unit. (1) Turn the CD changer mechanism cover base and remove the screws d connecting the unit to the CD changer mech- anism assembly.
  • Page 11 3.2.3 Removing the CD pickup (See Fig.15) • Prior to performing the following procedures, remove the top CD pickup cover. • Also remove the CD changer unit. • Also remove the CD changer mechanism. (1) Widen the section f. (2) While keeping the section f wide open, push the section g in the direction of the arrow to remove the shaft, and then remove the CD pickup.

  • Page 12: Board.(Fig

    3.2.6 Removing the cassette deck mechanism (See Fig.18) • Prior to performing the following procedures, remove the top cover. Front panel assembly • Also remove the CD changer unit. • Also remove the front panel assembly. (1) Remove six screws retaining the cassette deck mecha- nism.

  • Page 13: Remove Two Screws S Retaining The Sound Mode And Cd Function (Key 2) Switch Board.(Fig

    3.2.9 Removing the Switch board and sound mode and CD function switch board (See Fig.19 to 22) • Prior to performing the following procedures, remove the top cover. Front panel assembly • Also remove the CD changer unit. • Also remove the front panel assembly. (1) Pull out the volume control knob from the front of the front panel assembly.(Fig.21) (2) Remove six screws Q retaining the front panel assembly.
  • Page 14 3.2.10 Removing the cassette deck main motor, and replacing the main belts (See Fig.18, 23 and 24) • Prior to performing the following procedures, remove the top Cassette deck mechanism (Front side) cover and both sides board. • Also remove the CD changer unit. •...
  • Page 15 3.2.12 Removing the cassette deck heads (See Fig. 18 and 26) • Prior to performing the following procedures, remove the top Cassette dec k mechanism (Front side) cover and both sides board. • Also remove the CD changer unit. • Also remove the front panel assembly. (1) Remove six screws Z that retain the cassette deck mecha- nism.
  • Page 16 3.2.14 Removing the power amp and Supply board and the Power trans board (See Fig. 2, 28 to 30) • Prior to performing the following procedures, remove the top cover and CD changer unit. Fuse (F901) (1) Remove four screws B from the rear panel. (Fig.3) 1.6AL 250V (2) Pull the heat sink cover outward.

  • Page 17: Adjustment

    SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT. SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. (No.MB434)1-17...
  • Page 18 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB434) Printed in Japan...
  • Page 19 SCHEMATIC DIAGRAMS COMPACT COMPONENT SYSTEM MX-KC2 CD-ROM No.SML200510 Area suffix UW ----------- Brazil,Mexico,Peru UY ------------------------ Argentina SP-MXKC2 CA-MXKC2 SP-MXKC2 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Contents Block diagram Standard schematic diagrams...
  • Page 20 In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety.

  • Page 21: Block Diagram

    Block diagram VREF SVCC A B C D E F Pickup ass'y 16M SDRAM SPDRV DB0-7 TRVDRV ADD0-10 T+ T- BA0 RAS CAS DRW FODRV 3.3V 3.3V F+ F- LDQM CKE VFD DISPLAY DRVMUTE Motor XSCLK UDQM regulator SPMUTE TUNER MODULE driver VHALF FM / AM...
  • Page 22 Standard schematic diagrams Primary section Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
  • Page 23 Power amp. section Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
  • Page 24 Micon section...
  • Page 25 Source selector section...
  • Page 26 CD section...
  • Page 27 Front section...
  • Page 28 Printed circuit boards Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side...
  • Page 29 Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) reverse side...
  • Page 30 Amp board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side reverse side 2-10...
  • Page 31 Front board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side 2-11...
  • Page 32 Front board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) reverse side 2-12...
  • Page 33 Trans board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) 2-13...
  • Page 34 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MB434SCH)

  • Page 35: Parts List

    PARTS LIST [ MX-KC2 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix UW ---------- Brazil,Mexico,Peru UY ----------------------- Argentina - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 5 CD changer mechanism assembly and partslist (Block No.MA)
  • Page 36 Exploded view of general assembly and parts list Block No. Main board 25 24 Front board F901 F902...
  • Page 37 25 24 oard Amp board F901 Power board The parts without symbol number are not service.
  • Page 38 General Assembly Block No. [M][1][M][M] Symbol No. Part No. Part Name Description Local  BI1081090101V1 CASS LENS L BI1081100101V1 CASS LENS R BI1081160101V1 CASSETTE BOX BI202929010101 C DOOR SPRING BI1081060101V1 VOL KNOB BI1081040102X1 FRONT CABINET 94HB BI301779010101 CUSHION BACK FOAM(x2) BI300924010101 DAMPER BI1077330101U1...
  • Page 39 CD changer mechanism assembly and parts list Block No. CMS-FR3BN 9 10 The parts without symbol number are not service.
  • Page 40 CD changer mechanism Block No. [M][A][M][M] Symbol No. Part No. Part Name Description Local  BIAJ7200601J BASE-MAIN BIAJ6100601P BRKT-CHUCK BI3302000158 MAGNET-FERRITE BIAJ7200601L TABLE-CHUCK BIAJ6300601A SHEET-CHUCK (x3) BIAJ7300601B BELT-LOAD BIAJ6600601N GEAR-SYNCRO BIAJ6600601L GEAR-CONVERT BIAJ6600601M GEAR-TRAY BIAJ6600601R GEAR-CAM BIAJ6600601K GEAR-LOAD BIAJ6600601J GEAR-PULLEY BIAJ7200601N SLIDER-CAM BI3405000101...
  • Page 41 Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1] D508 1SS133 FR DIODE BI31SS133M000V7  Symbol No. Part No. Part Name Description Local D509 1SS133 FR DIODE BI31SS133M000V7 D510 1N4001 DIODE BI31N4001M0006 D511 1SS133 FR DIODE...
  • Page 42  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C445 BICE224500MP01 E CAPACITOR 0.22uF 50V C767 BICE107100MP01 E CAPACITOR 100uF 10V C446 BICC103500KA04 C CAPACITOR 0.01uF 50V C768 BICC102500KA04 C CAPACITOR 1000pF 50V C447 BICE107160MP01...
  • Page 43  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R336 BIRC2230105A00 C RESISTOR 22KΩ 1/10W R427 BIRC2220105A00 C RESISTOR 2.2KΩ 1/10W R337 BIRC1010105A00 C RESISTOR 100Ω 1/10W R428 BIRC1830085M00 C RESISTOR 18KΩ...
  • Page 44  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R566 BIRC6820105A00 C RESISTOR 6.8KΩ 1/10W R816 BIRC1010105A00 C RESISTOR 100Ω 1/10W R567 BIRC3320105A00 C RESISTOR 3.3KΩ 1/10W R817 BIRC1010105A00 C RESISTOR 100Ω...
  • Page 45  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C206 BICC104500KA04 C CAPACITOR 0.1uF 50V R268 BIRC4730105A00 C RESISTOR 47KΩ 1/10W C207 BICE226500MP01 E CAPACITOR 22uF 50V R269 BIRC4730105A00 C RESISTOR 47KΩ...
  • Page 46  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R902 BIRC4720085M00 C RESISTOR 4.7KΩ 1/8W J C D617 1SS133 FR DIODE BI31SS133M000V7 D618 1SS133 FR DIODE BI31SS133M000V7  L BI201323010101 TERMINAL D619 1SS133 FR DIODE...
  • Page 47  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R604 BIRC0000105A00 C RESISTOR 0Ω 1/10W R692 BIRC1030105A00 C RESISTOR 10KΩ 1/10W R605 BIRC1020105A00 C RESISTOR 1KΩ 1/10W R695 BIRC3930105A00 C RESISTOR 39KΩ...
  • Page 48 Packing materials and accessories parts list Block No. A1 A2 3-14...
  • Page 49 Packing and Accessories Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local  BI440001553000 INST BOOK ENG SPA POR LVT1346-006A BI440001552000 INST BOOK SPA LVT1346-007A BI23A0094V PLUG CONVERSION JT-0476  ------------ BATTERY (x2) BIAN01051 FM ANT WIRE BIAN01031V AM LOOP ANT BI643MXKC206SX REMOTE CONTROL...

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