JVC KD-AR390J Service Manual
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JVC KD-AR390J Service Manual

JVC KD-AR390J Service Manual

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SERVICE MANUAL
5 S ERVICE MANUAL
2008
MA376<Rev.002>
KD-AR390J, KD-G340J,
KD-G444UI, KD-G445U,
KD-G445UN, KD-G445UT,
KD-G445UH, KD-G446U,
KD-G446UN, KD-G446UT,
KD-G446UH, KD-S25J
COPYRIGHT © 2008 Victor Company of Japan, Limited
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
CD RECEIVER

TABLE OF CONTENTS

COPYRIGHT © 2008 Victor Company of Japan, Limited
only for KD-AR390/KD-G340/KD-S25
No.MA376<Rev.002>
2008/5

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  • Page 1: Table Of Contents

    SERVICE MANUAL CD RECEIVER MA376<Rev.002> 2008 5 S ERVICE MANUAL KD-AR390J, KD-G340J, KD-G444UI, KD-G445U, KD-G445UN, KD-G445UT, KD-G445UH, KD-G446U, KD-G446UN, KD-G446UT, KD-G446UH, KD-S25J only for KD-AR390/KD-G340/KD-S25 COPYRIGHT © 2008 Victor Company of Japan, Limited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
  • Page 2 SPECIFICATION KD-AR390/KD-G340/KD-S25 AUDIO AMPLIFIER SECTION Power Output 20 W RMS 4 Channels at 4 and < or = 1% THD+N Signal-to-Noise Ratio 80 dBA (reference: 1 W into 4 ) Load Impedance to 8 allowance) Tone Control Range Bass ±12 dB (60 Hz, 80 Hz, 100 Hz, 120 Hz) Mid-range ±12 dB (500 Hz, 1.0 kHz, 1.5 kHz, 2.5 kHz) Treble...
  • Page 3 KD-G444/KD-G445/KD-G446 AUDIO AMPLIFIER SECTION Maximum Power Output Front/Rear 50 W per channel Continuous Power Output (RMS) Front/Rear 19 W per channel into 4 40 Hz to 20 000 Hz at no more than 0.8% total harmonic distortion. Load Impedance to 8 allowance) Tone Control Range Bass...

  • Page 4: Precaution

    SECTION 1 PRECAUTION Safety Precautions Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.
  • Page 5 Preventing static electricity Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs. 1.2.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products.
  • Page 6 Important for laser products 1.CLASS 1 LASER PRODUCT 5.CAUTION : If safety switches malfunction, the laser is able to function. 2.CAUTION : (For U.S.A.) Visible and/or invisible class II laser radiation 6.CAUTION : Use of controls, adjustments or performance of when open.

  • Page 7: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. SECTION 3 DISASSEMBLY Main body (used figure is KD-AR390) 3.1.1 Removing the FRONT CHASSIS assembly (See Fig.1) (1) Disengage the four hooks a engaged the both side of the FRONT CHASSIS assembly.
  • Page 8 3.1.4 Removing the MAIN BOARD assembly (See Fig.5,6) (1) Remove the two screws F and one screw G attaching the MAIN BOARD assembly. (See Fig.5) (2) Remove the two screws H attaching the MAIN BOARD assembly. (See Fig.6) (3) Disconnect the connector CN501 connected to MAIN BOARD assembly and CD MECHANISM assembly.
  • Page 9 3.1.6 Removing the SWITCH BOARD assembly (See Fig.8) (1) Remove the VOLUME KNOB. (2) Remove the four screws K attaching the REAR COVER. hook (3) Disengage the nine hooks b engaged the REAR COVER. hook Fig.8 CD MECHANISM assembly section •...
  • Page 10 3.2.2 Removing the top cover (See Fig.3 to 5) • Remove the MECHANISM CONTROL BOARD assembly. Top cover (1) From the front side of the CD MECHANISM assembly, change the hook position of the two roller springs. (See Fig.3.) (2) From the side of the CD MECHANISM assembly, remove the six screws C attaching the top cover.
  • Page 11 3.2.3 Removing the roller (See Fig.6) • Remove the MECHANISM CONTROL BOARD assembly and top cover. Roller coller (1) From the bottom side of the top cover, remove the screw D attaching the gear holder. (2) Remove the R.holder assembly from disc plate, and then take out the roller from R.holder assembly in the direction Washer of the arrow.

  • Page 12: No.ma376)1

    3.2.5 Removing the mechanism section (See Fig.9 and 10) • Remove the MECHANISM CONTROL BOARD assembly and top cover. Mechanism section (1) From the top side of the CD MECHANISM assembly, Mecha frame spring remove the two screws F attaching the loading motor spring assembly.
  • Page 13 3.2.6 Removing the slide cam (L) (See Fig.11 to 13) • Remove the MECHANISM CONTROL BOARD assembly, top Slide cam(L) cover and mechanism section. (1) From the top side of the mecha frame, remove the screw G attaching the cam cover. (See Fig.11.) (2) Take out the cam cover from mecha frame in an upward direction.
  • Page 14 3.2.7 Removing the F.lock lever and slide cam (R) (See Slide cam(R) assembly Fig.14 and 15) • Remove the MECHANISM CONTROL BOARD assembly, top cover and mechanism section. F.lock lever (1) From the top side of the mecha frame, take out the slide cam (R) assembly in an upward direction.
  • Page 15 3.2.9 Removing the clamper assembly (See Fig.17) • Remove the MECHANISM CONTROL BOARD assembly, top cover and mechanism section. (1) From the top side of the mechanism section, release the clamper spring. (2) Move the clamper assembly in the direction of the arrow, and then release the joints (k and m).
  • Page 16 3.2.10 Removing the feed motor (See Fig.18 and 19) • Remove the MECHANISM CONTROL BOARD assembly, top cover, mechanism section and clamper assembly. (1) From the bottom side of the T.M chassis assembly, remove the two screws H attaching the feed motor assembly. (See Fig.18.) Trigger arm Feed motor assembly...
  • Page 17 3.2.13 Removing the pickup assembly (See Fig.21 to 22) • Remove the MECHANISM CONTROL BOARD assembly, top cover, mechanism section, clamper assembly and feed motor assembly. Caution: Main shaft Pick up assembly • Do not touch section u on the pickup assembly. (See Fig.21 and 22.) (1) From the bottom side of the T.M chassis assembly, move the pickup assembly in the direction of the arrow from the...
  • Page 18 3.2.14 Removing the spindle motor (See Fig.23 and 24) • Remove the MECHANISM CONTROL BOARD assembly, top cover, mechanism section, clamper assembly, feed motor assembly and pickup assembly. (1) From the top side of the T.M chassis assembly, remove the CD T.table assembly from the spindle motor.

  • Page 19: Adjustment

    (3) Digital tester (4) Tracking offset meter Dummy load (5) Test Disc JVC :CTS-1000 Exclusive dummy load should be used for AM,and FM. (6) Extension cable for check For FM dummy load, there is a loss of 6dB between SSG output EXTGS004-26PL x 1 and antenna input.

  • Page 20: Troubleshooting

    SECTION 5 TROUBLESHOOTING 16 PIN CORD DIAGRAM (for KD-AR390, KD-G340 and KD-S25) Black Green Violet Gray Blue White Yellow BL/WH WH/BK GN/BK VI/BK GY/BK BL/WH GN/BK VI/BK WH/BK GY/BK 1-20 (No.MA376<Rev.002>)
  • Page 21 16 PIN CORD DIAGRAM (except KD-AR390 AND KD-G340) Black Green Violet Gray Blue White Yellow BL/WH WH/BK GN/BK VI/BK GY/BK BL/WH GN/BK VI/BK WH/BK GY/BK (No.MA376<Rev.002>)1-21...
  • Page 22 Victor Company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MA376<Rev.002>) Printed in Japan...

  • Page 23: Copyright © 2008 Victor Company Of Japan, Limited No.ma376

    REVISION INFORMATION CD RECEIVER KD-AR390J, KD-G340J, KD-G444UI, KD-G445U, KD-G445UN, KD-G445UT, KD-G445UH, KD-G446U, KD-G446UN, KD-G446UT, KD-G446UH, KD-S25J ■ OVERVIEW Add KD-S25J ■ DETAILS COVER SECTION Title Line No.MA376<Rev.001> No.MA376<Rev.002> Description Revision Rev.001 Rev.002 Issue Date 2007/12 2008/05 Model No. KD-AR390J, KD-AR390J,...

  • Page 24: Standard Schematic Diagrams

    Description of Major ICs Diagram Name No.MA376<Rev.001> No.MA376<Rev.002> Description Menu IC681: NJL21H380A NJL21H380A.xml Menu IC1: TEF6601T_V2-X IC1: TEF6601T/V2-X PARTS LIST MODEL No. LIST Model No. No.MA376<Rev.002> KD-AR390J KD-G340J KD-G444UI KD-G445U KD-G445UH KD-G445UN KD-G445UT KD-G446U KD-G446UH KD-G446UN KD-G446UT KD-S25J General assembly [M1] Part No.
  • Page 25 Part No. Symbol Part Name Description Models <Rev.001> <Rev.002> 02 R660 ------------ NRSA63J-0R0X MG RESISTOR (Addition) 1 0C 02 R661 ------------ NRSA63J-102X MG RESISTOR (Addition) 1 0C 02 R662 ------------ NRSA63J-102X MG RESISTOR (Addition) 1 0C 02 R663 ------------ NRSA63J-394X MG RESISTOR (Addition) 1 0C...
  • Page 26 Victor Company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (MA376-R002) Printed in Japan No.MA376<Rev.001>...
  • Page 27 PARTS LIST KD-AR390J,KD-G340J,KD-G444UI KD-G445U,KD-G445UN,KD-G445UT KD-G445UH,KD-G446U,KD-G446UN KD-G446UT,KD-G446UH,KD-S25J * All printed circuit boards and its assemblies are not available as service parts. - Contents - 3- 2 Exploded view of general assembly and parts list (Block No.M1) 3- 6 CD mechanism assembly and parts list (Block No.MB) 3- 8 Electrical parts list (Block No.01~03)
  • Page 28 Exploded view of general assembly and parts list Block No. Only KD-G446UT, KD-G445UT, Only KD-S25J Switch board Only KD-S25J...
  • Page 29 Only KD-S25J Only KD-AR390J Main board Only KD-AR390J The parts without symbol number are not service.
  • Page 30 AUX BUTTON AR390J,G446U,G446UN,G446UT,G446UH ,S25J GE32824-005A AUX BUTTON G340J,G444UI,G445U,G445UN,G445UT,G 445UH GE20233-001A PRESET BTN AR390J,G446U,G446UN,G446UT,G446UH ,S25J GE20227-001A PRESET BTN G340J,G444UI,G445U,G445UN,G445UT,G 445UH GE40399-001A NAVI BTN ASSY AR390J,G446U,G446UN,G446UT,G446UH ,S25J GE40399-002A NAVI BTN ASSY G340J,G444UI,G445U,G445UN,G445UT,G 445UH GE40347-001A JVC BADGE GE32822-001A VOL KNOB LOW AR390J,G446U,G446UN,G446UT,G446UH ,S25J...
  • Page 31  Symbol No. Part No. Part Name Description Local GE32822-002A VOL KNOB LOW G340J,G444UI,G445U,G445UN,G445UT,G 445UH GE40127-005A KNOB SPRING GE10214-001A REAR COVER VKZ4777-010 MINI SCREW (x4) GE32819-001A LCD LENS GE32820-001A LENS CASE GE32821-001A LCD CASE GE40397-002A LIGHTING SHEET GE32888-002A NAME PLATE AR390J GE32945-002A NAME PLATE...
  • Page 32 CD mechanism assembly and parts list Block No. Grease JVG-31N FG-87HS JVS-1003 Photo board Rest switch board Back side 11.1mm 0.1mm Mecha control board 11.1mm 0.1mm 17 18 The parts without symbol number are not service.
  • Page 33 CD mechanism Block No. [M][B][M][M]  Symbol No. Part No. Part Name Description Local LV11256-001A MECHA FRAME LV36800-001A LINK ARM LV44658-001A LINK SPRING LV22300-001A SLIDE CAM(L) LV22298-002A SLIDE CAM(R) LV36802-001A LOAD RACK LV44552-001A RETURN SPRING LV36803-002A F LOCK LEVER LV36804-002A CAM COVER VKZ4539-054 MINI SCREW...

  • Page 34: Electrical Parts List

    Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1] D786 or 1SS355W-X DIODE AR390J,G3  Symbol No. 40J,G444UI, Part No. Part Name Description Local G445U,G44 5UN,G445U T,G445UH,  IC1 TEF6601T/V2-X G446U,G44 IC161 BD3445FS-X 6UN,G446U ...
  • Page 35  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local C173 QTE1H57-105Z E CAPACITOR 1uF 50V C592 NCB31EK-104X C CAPACITOR 0.1uF 25V K C174 QTE1H57-105Z E CAPACITOR 1uF 50V C700 NDC31HJ-121X C CAPACITOR 120pF 50V J C175 NCB31HK-103X...
  • Page 36  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local NRSA63J-822X MG RESISTOR 8.2k 1/16W J G444UI,G44 R516 NRSA63J-102X MG RESISTOR 1/16W J 5U,G445UN R517 NRSA63J-153X MG RESISTOR 1/16W J ,G445UT,G4 R518 NRSA63J-562X MG RESISTOR 5.6k...
  • Page 37  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local R752 NRSA63J-472X MG RESISTOR 4.7k 1/16W J QNB0190-001 CAR ANT JACK R753 NRSA63J-472X MG RESISTOR 4.7k 1/16W J J321 QNN0832-001 PIN JACK AR390J R754 NRSA63J-472X...
  • Page 38  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local R663 NRSA63J-184X MG RESISTOR 100k 1/16W J AR390J,G340 J,G444UI,G44 R600 NRSA63J-272X MG RESISTOR 2.7k 1/16W J 5U,G445UN,G R601 NRSA63J-821X MG RESISTOR 1/16W J 445UT,G445U R602 NRSA63J-821X...
  • Page 39  Symbol No. Part No. Part Name Description Local R205 NRSA63J-153X MG RESISTOR 1/16W J CN101 QGB2027LA-26X CONNECTOR B-B (1-26) CN102 QGF0522F3-15W CONNECTOR FFC/FPC (1-15) NSW0291-001X DETECT SWITCH 3-13...
  • Page 40 Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. Only KD-G340J, KIT : A9,A10,A11, Only KD-AR390J,KD-S25J A12,A13 KD-G445U,KD-G446U, KD-AR390J,KD-G340J A1,A4, A1,A3,A4,A5,A6 Only KD-AR390J, KD-G340J A18,A19 Only KD-AR390J,KD-G340J, KD-G444UI,KD-G445U, Only KD-S25J KD-G446U A1,A4,A18,A19,A20,A21 The parts without symbol number are not service.
  • Page 41 Packing and Accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local GET0487-001A INST BOOK ENG FRE SPA AR390J,G340J GET0538-001A INST BOOK G444UI GET0537-001A INST BOOK ENG THA G445U,G445UH,G446U,G446UH GET0537-004A INST BOOK ENG INA G445UN,G446UN GET0537-005A INST BOOK ENG CHI(TAIWAN) G445UT,G446UT GET0562-001A...
  • Page 42 SCHEMATIC DIAGRAMS CD RECEIVER KD-AR390J,KD-G340J,KD-G444UI KD-G445U,KD-G445UN,KD-G445UT KD-G445UH,KD-G446U,KD-G446UN KD-G446UT,KD-G446UH,KD-S25J DVD-ROM No.SML2008Q1 only for KD-AR390/KD-G340/KD-S25 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)

  • Page 43: Safety Precaution

    Safety precaution Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of preforming repair of this system. Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.

  • Page 44: Block Diagram

    KEY0 to 2 BUSSCK CHANGER S601 to S619 KEY0 to 2 BUSINT CONTROL KEY MATRIX BUS-I/O JBUS-SI/SO /BUS-I/O IC801 JBUS-SCK JVC BUS D630 ACC5V POWER LED D631 to D654 STEERING STEERING ILM.10V LIGHTING DISPLAY REMOTE Used for KD-AR390 AUX-L/R AUX.L/R...
  • Page 45 5V LINE OUT AMP 47/16 3.8V C304 QFV91HJ-474Z INRR R161 R162 C303 100p 3.8V 100p 0.47 INFR 100K 100K R165 R166 FOR KD-AR390J ONLY C313 PRE-GND C306 4.7k 4.7k 100p 3.8V C314 INFL 3.8V 100p C318 22/16 C312 INRL 3.8V CD8V...
  • Page 46 CD section 1A3G-T1 D501 CD8V BTL_MUTE 5.6k TRAV Q501 CD-R R549 2SA1705/ST/-T 3.3V AGND 2.2/50 5.9V C586 QTE1H64-225Z CD-L R584 R588 R590 5.2V VDD_5V R506 C588 R586 C518 150p 5.6k L.P.F NPWDOWN MECHA 8.2k FLM-CD2-1D NRST R509 R515 STAT MECHA PWB R203 180k SW5V...
  • Page 47 LCD & Key control section LCD DISPLAY ENCODER REMOCON JS686 IC681 QSW1219-001 NJL29H380A 4.8V 4.8V C682 UDZW6.2B-X D681 R690 C681 2.2K CJ601 4.7/6.3 2.2K C812 QGZ1601K1-15S R689 C686 C687 R683 C683 0.022 0.022 AUX-R 0.0047 R858 AUX-G DGND 15 16 22 23 28 29 34 35...
  • Page 48 Printed circuit boards Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade) IC301 J702 CN901 J321 C389 R305 C316 R343...
  • Page 49 Switch board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade) forward side D641 D642 S605 R636 R604 D633 R639 D637 R646...
  • Page 50 < M E M O >...
  • Page 51 Victor Company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken,371-8543,Japan Printed in Japan (No.MA376SCH<Rev.002>)

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