JVC UX-G50J Service Manual
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JVC UX-G50J Service Manual

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SERVICE MANUAL
MICRO COMPONENT SYSTEM
2006
3
MB509
UX-G50J,UX-G50C
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
SP-UXG50

TABLE OF CONTENTS

COPYRIGHT © 2006 Victor Company of Japan, Limited
CA-UXG50
SP-UXG50
No.MB509
2006/3

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Summary of Contents for JVC UX-G50J

  • Page 1: Table Of Contents

    SERVICE MANUAL MICRO COMPONENT SYSTEM MB509 2006 UX-G50J,UX-G50C SP-UXG50 CA-UXG50 SP-UXG50 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 120 W per channel, min. RMS, driven into 6 Ω at 1 kHz with no more than 10% total har- Amplifier section Output Power monic distortion. 6 Ω - 16 Ω Speakers Impedance Audio Input Input sensitivity/Impedance: LEVEL1:150 mV/47 kΩ LEVEL2:500 mV/47 kΩ...

  • 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 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. 1.5.1 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 5 Importance administering point on the safety Full Fuse Replacement Marking Marquage Pour Le Remplacement Complet De Fusible Graphic symbol mark Le symbole graphique (Ce symbole signifie (This symbol means fast blow type fuse.) fusible de type a fusion rapide.) should be read as follows ; doit etre interprete comme suit ;...

  • Page 6: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.MB509)

  • Page 7: Disassembly

    SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the metal plate (See Fig.1 and 2) (1) Remove the six screws A attaching the metal plate from back side of main body. (See Fig.1) (2) Remove the four screws B attaching the metal plate from both side of main body.
  • Page 8 3.1.3 Removing the main board (See Fig.4) (1) Remove the two screws E attaching the main board. (See Fig.4) CN402 CN671 CN681 (2) Disconnect the card wires connected to connector CN402, CN411, CN412, CN661 CN681 of main board. (3) Disconnect the connector wire connected to connector CN671 of main board.
  • Page 9 3.1.5 Removing the rear plate (See Fig.7 and 8) (1) Remove the four screws G attaching the trans cover. (See Fig.7) (2) Remove the one screw H attaching the rear plate. (See Fig.7) (3) Remove the two screws J attaching the speaker terminal. (See Fig.7) (4) Disengage hook b on both side of main chassis.
  • Page 10 3.1.9 Removing the front panel (See Fig.3 & 10) (1) Remove the two screws N attaching the front panel assem- bly. (See Fig.10) (2) Remove the two screws P attaching the front panel assem- bly. (See Fig.3) (3) Disconnect the earth wires from main chassis. (See Fig.3) (4) Disengage hook c on the both side of main chassis.
  • Page 11 3.1.14 Removing the CD mecha cover (See Fig.13 to 15) (1) Remove the four screws U attaching the CD mecha cover. (See Fig.13) (2) Remove the two screws V attaching the CD mecha holder F. (See Fig.14) (3) Remove the two screws W attaching the CD mecha holder R.
  • Page 12 3.1.15 Removing the CD board (See Fig.16 to 18) (1) Disconnect the card wire from connector CN871 of CD board. (See Fig.16) CN873 CN872 (2) Disconnect the connector wire connected to connector CN872 CN873 of CD board. (See Fig.16) (3) Disconnect the connector wire from CN702 of CD board connected to motor board connector.
  • Page 13 3.1.16 Removing the CD mechanism (See Fig.19) (1) Remove the three screws Y attaching the CD mechanism. Fig.19 (No.MB509)1-13...

  • Page 14: Adjustment

    SECTION 4 ADJUSTMENT This service manual does not describe ADJUSTMENT. 1-14 (No.MB509)

  • Page 15: Troubleshooting

    SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. (No.MB509)1-15...

  • Page 16: No.mb509)1

    Victor Company of Japan, Limited Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB509) Printed in Japan...
  • Page 17 SCHEMATIC DIAGRAMS MICRO COMPONENT SYSTEM UX-G50J,UX-G50C CD-ROM No.SML200603 SP-UXG50 CA-UXG50 SP-UXG50 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Contents Block diagrams Standard schematic diagrams Printed circuit boards 2-11 to 20 No.MB509SCH COPYRIGHT 2006 Victor Company of Japan, Limited.
  • Page 18 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 19 < M E M O >...

  • Page 20: Block Diagram

    Block diagram VREF SVCC A,B,C,D,E,F SDRAM PICKUP 3.3V ASS'Y SPDRV T+,T- DB0-7 TRVDRV F+,F- ADD0-10 Motor BAO RAS CAS DRW FODRV driver VFD D LDQM CKE SP+/-, SL+/- DRVMUTE XSCLK UDQM IN-SW SPMUTE LOADER VHALF MO+/-, RL+/- ASS'Y CD/MP3 DECODER SENSE CATHODE 16.93MHz SW1-2...
  • Page 21 TUNER MODULE VFD DISPLAY FM /AM driver ST LED TUNER-L TUNER-R DATA IN CLK1 DATA OUT D-GND H.P. HP OUT JACK VOLTAGE SUPPLY MAIN CH Power amp FUNC IC SYSTEM SURROUND VOLUME MICON FUNCTION SW AMP board CD L/R HEADPHONE Main board...
  • Page 22 Standard schematic diagrams Primay / Front section...
  • Page 23 Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
  • Page 24 Main section...
  • Page 26 Amplifier section...
  • Page 27 Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
  • Page 28 CD servo control section...
  • Page 29 2-10...

  • Page 30: Printed Circuit Boards

    Printed circuit boards Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Forward side) (CD board) (Main board) 2-11...
  • Page 31 (Power trans board) (AC power board 1) (Key board) 2-12...
  • Page 32 Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Reverse side) (Power trans board) (AC power board 1) (Key board) 2-13...
  • Page 33 (CD board) (Main board) 2-14...
  • Page 34 Amp board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Forward side) 2-15...
  • Page 35 2-16...
  • Page 36 Amp board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Reverse side) 2-17...
  • Page 37 2-18...
  • Page 38 Front board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (USB board) (Front side) (Front board) (USB board) (AC power board 2) (Reverse side) (Front board) 2-19...
  • Page 39 (AC power board 2) (USB board) B board) 2-20...
  • Page 40 Victor Company of Japan, Limited Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MB509SCH)

  • Page 41: Parts List

    PARTS LIST UX-G50J,UX-G50C * 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- 5 Electrical parts list (Block No.01~09) 3-14 Packing materials and accessories parts list (Block No.M3)
  • Page 42 Exploded view of general assembly and parts list Block No. Key board USB board Amp board 30 52 Power trans board Main board Front board...
  • Page 43 AC power board...
  • Page 44 General Assembly Block No. [M][1][M][M] Symbol No. Part No. Part Name Description Local  BI1084169101X1 FRONT PANEL BI3023630101X1 CD DOOR RUBBER (x2) BI2031140101X1 CD DOOR SPRING BI1084220101X1 CD BAFFLE BI1084170BI101 CD DOOR BI1080800BI101 VOLUME KNOB BI1084200BI101 VOLUME RING BI10842BI10BI1 DISPLAY LENS BI1084230BI101 ILLUMINAT LENS BI1084180BI101...

  • Page 45: Electrical Parts List

    Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1] C619 BICM334500JP01 M CAPACITOR 0.33uF 50V  Symbol No. Part No. Part Name Description Local C620 BICM334500JP01 M CAPACITOR 0.33uF 50V C621 BICE106500MP01 E CAPACTIOR 10uF 50V C622...

  • Page 46: Front Board

     Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R438 BIRC1020085M00 C RESISTOR 1KΩ 1/8W J R624 BIRC5620105A00 C RESISTOR 5.6KΩ 1/10W R440 BIRC1010085N00 C RESISTOR 100Ω 1/8W R625 BIRC5620105A00 C RESISTOR 5.6KΩ...

  • Page 47: Key Board

    Key board  Symbol No. Part No. Part Name Description Local Block No. [0][3] C301 BICC104500KA04 C CAPACITOR 0.1uF 50V C302 BICC104500KA04 C CAPACITOR 0.1uF 50V  Symbol No. Part No. Part Name Description Local C303 BICE226500MP01 E CAPACITOR 22uF 50V C304 BICE226500MP01 E CAPACITOR...
  • Page 48  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local Q121 KTC3205 TRANSISTOR BI2KTC3205P0008 C172 BICM103101KP01 M CAPACITOR 0.01uF 100V Q131 2SC3052 TRANSISTOR BI2SC3052FA013H C174 BICE107250MP01 E CAPACITOR 100uF 25V Q132 KTA1273 TRANSISTOR BI2KTA1273P0008 C175...
  • Page 49 Power trans board  Symbol No. Part No. Part Name Description Local Block No. [0][5] R210 BIRC1520105A00 C RESISTOR 1.5KΩ 1/10W R215 BIRC5630105A00 C RESISTOR 56KΩ 1/10W  Symbol No. Part No. Part Name Description Local R216 BIRC5630105A00 C RESISTOR 56KΩ...
  • Page 50  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C719 BICC104250KA04 C CAPACITOR 0.1uF 25V R706 BIRC5630105A00 C RESISTOR 56KΩ 1/10W C720 BICC333250KA04 C CAPACITOR 0.033uF 25V R707 BIRC2240105A00 C RESISTOR 220KΩ...
  • Page 51  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R887 BIRC1020105A00 C RESISTOR 1KΩ 1/10W C569 BICC105100ZA04 C CAPACITOR 1uF 10V R888 BIRC1020105A00 C RESISTOR 1KΩ 1/10W C570 BICC223500KA04 C CAPACITOR 0.022uF 50V R889 BIRC1020105A00...
  • Page 52 Wiring Block No. [0][9]  Symbol No. Part No. Part Name Description Local 10P for TUNER XXXXX BI1207271Y FFC CABLE PACK to MAIN CN681 16P for CD CN701 XXXXX BI1206561Y FFC CABLE to CD PICKUP 12P for MAIN XXXXX BI1207221Y FFC CABLE CN661 to CD CN802...
  • Page 53 <MEMO> 3-13...

  • Page 54: Packing Materials And Accessories Parts List

    Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. A2 A3 3-14...
  • Page 55 Packing and Accessories Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local  BI440001656000 INST BOOK BI440001666000 INST BOOK ENG FRE ------------ WARRANTY CARD BT-51034-2 ------------ WARRANTY CARD BT-52006-2 BI400023260002 SAFETY CARD ------------ BATTERY (x2) BIAN01361X AM LOOP ANT BIAN01371Y FM WIRE ANT BI643UXG5005SX...

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Ux-g50c

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