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JVC UX-G5 Service Manual

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SERVICE MANUAL
MICRO COMPONENT SYSTEM
8
2005
MB431
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18
UX-G5
SP-UXG5

TABLE OF CONTENTS

COPYRIGHT © 2005 Victor Company of Japan, Limited
CA-UXG5
SP-UXG5
Area suffix
A ------------------------ Australia
US ------------------------ Singapore
UP ----------------------------- Korea
UT ---------------------------- Taiwan
UW ----------- Brazil,Mexico,Peru
UY ------------------------ Argentina
UJ ---------------------- U.S.Military
No.MB431
2005/8

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  • Page 1: Table Of Contents

    SERVICE MANUAL MICRO COMPONENT SYSTEM MB431 2005 UX-G5 Area suffix A ------------------------ Australia US ------------------------ Singapore UP ----------------------------- Korea UT ---------------------------- Taiwan UW ----------- Brazil,Mexico,Peru UY ------------------------ Argentina UJ ---------------------- U.S.Military SP-UXG5 CA-UXG5 SP-UXG5 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS PRECAUTION.
  • Page 2 SPECIFICATION 100 W (50 W+50 W) at 6 Ω (10% THD) Amplifier section Output Power 6 Ω - 16 Ω Speakers Impedance Audio Input 400 mV/50 kΩ Tuner section FM tuning range 87.50 MHz - 108.00 MHz AM tuning range 531 kHz - 1 710 kHz (at 9 kHz) 530 kHz - 1 710 kHz (at 10 kHz) CD player section...

  • 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.MB431)

  • Page 5: Disassembly

    SECTION 3 DISASSEMBLY Disassembly of Right plate left plate Top cover Replacement of the fuses and AMP TR .THMS RES. Transistor. 7808 IC. 3.1.1 Replacing the fuses (See Fig.1) • Prior to performing the following procedure, remover right plate, left plate, top cover. (1) Replace the fuses inside.
  • Page 6 3.1.5 Removing the transformer cover (See Fig.4) (1) Remove the ten screws E from top cover. (2) Take off transformer cover from rear plate. SPEAKERS IMPEDANCE:6 16 Transformer cover Fig.4 3.1.6 Removing the Right plate (See Fig.5) (1) Remove the two screws F. (2) Take off right plate from main body.
  • Page 7 3.1.8 Removing the TOP COVER (See Fig.7 to 9) (1) Remove the two screws H1 (See Fig.7, 8). (2) Disengage the claws H2 on both side of the front cabinet (See Fig.7, 8). Top cover (3) Rotate top cover and let's away from main body (See Fig.9).
  • Page 8 3.1.9 Removing the main board (See Fig.10 to 13) (1) Remove the two screws J1. (See Fig.10) (2) Disconnect the FFC cable J2 from the connector CN661 main board. (See Fig.10) (3) Disconnect the FFC cable J3 from the connector CN402 main board.
  • Page 9 3.1.10 Removing the Power board (See Fig.14 to 16) (1) Remove the two screws K1 from CD MECH cover and power board. (See Fig.14) Power board (2) Remove the two screws K1 from rear plate and power board. (See Fig.14-1) (3) Disconnect the wire K2 from the connector CN102 on the...
  • Page 10 3.1.11 Removing the Rear plate assembly (See Fig.17 to 18) (1) Disengage the claws I1 on both sides of bottom plate. (See Fig.17) Rear plate assembly (2) Disconnect the wire I2 from the connector CN105 on the AMP board. (See Fig.18) Fig.17 Fig.18 3.1.12 Removing the fan...
  • Page 11 3.1.14 Removing the cassette machine from top cover (See Fig.20 to 22) (1) Disconnect the wire E1 from connector of the cassette ma- chine. (See Fig.20) TOP COVER (2) Disconnect the wire E2 from connector of the cassette ma- chine. (See Fig.21) (3) Remove the four screws E3 from top cover.
  • Page 12 3.1.15 Removing the key board (See Fig.23) (1) Remove the eight screws P from the front cabinet and the key board. Key board Fig.23 3.1.16 Removing the AUX board (See Fig.24) (1) Remove the two screws Q from the front cabinet and the aux board.
  • Page 13 3.1.18 Removing the CD MECH COVER (See Fig.25, 26) (1) Remove the four screws S. CD Mech Cover Fig.25 Fig.26 (No.MB431)1-13...

  • Page 14: No.mb431)1

    3.1.19 Removing the CD MECH Assembly (See Fig.27, 28) (1) Remove the two screws T from the CD MECH-F and CD MECHANISM assembly. (See Fig.27) CD MECH Assembly (2) Remove the two screws T from the CD MECH-B and CD MECHANISM assembly.

  • Page 15: Adjustment

    Headphone output : -10 dB (0.1V) 32 Ω Amplifier section • Reference output : Speaker output 0 dB (1 V) / 4 Ω Headphone output -10 dB (0.1 V) / 32 Ω CD section • Test disc : CTS-1000 (JVC) TCD-731R (A-BEX) TCD-712R (A-BEX) TCD-785 (A-BEX) (No.MB431)1-15...
  • Page 16 Cassette amplifier section Item Measuring condition Check and adjustment procedure Standard value Adjusting part Head azimuth Test tape : VT703 1.Plyback the test tape VT703. Output level : Head azimuth adjustment Signal output terminal : 2.Adjust the head azimuth adjusting screw within +/-2dB adjusting screw PHONES...
  • Page 17 Location of adjusting parts Cassette mechanism section CASSETTE MOTOR Tape speed adj. Main board assembly (AM RF) (AM IF) T203 TC201 (AM RF) R245 T204 (AM VT) (114 kHz) T201 (AM OSC) T360 (BIAS FREQUENCY) (No.MB431)1-17...

  • Page 18: Troubleshooting

    SECTION 5 TROUBLESHOOTING This service manual does not describe TROUBLESHOOTING. 1-18 (No.MB431)
  • Page 19 (No.MB431)1-19...
  • Page 20 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MB431) Printed in Japan...
  • Page 21 SCHEMATIC DIAGRAMS MICRO COMPONENT SYSTEM UX-G5 Area suffix CD-ROM No.SML200508 A ------------------------ Australia US ------------------------ Singapore UP ----------------------------- Korea UT ---------------------------- Taiwan UW ----------- Brazil,Mexico,Peru UY ------------------------ Argentina UJ ---------------------- U.S.Military SP-UXG5 CA-UXG5 SP-UXG5 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
  • Page 22 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 23: Block Diagram

    Block diagram DIGITAL OUTPUT PICKUP ASS'Y RF & SERVO DIGITAL SERVO & A B C D AIGNAL PROCESSOR ANALOG OUTPUT SIL9226 S5L9279 LCD DISPLAY DRAM FOR MP3 DRAM TRA MECHA ASS'Y TUNER MODULE BR93L56RF K4S161622H FM/AM TRVP SPOUT TRACKING COIL KEY CONTROL CD CONTROL MICON...
  • Page 24 Standard schematic diagrams Main section...
  • Page 25 Amp section Parts are safety assurance parts. When replacing those parts make sure to use the specified one.
  • Page 26 CD section...
  • Page 27 FL & Primary section Parts are safety assurance parts. When replacing those parts make sure to use the specified one.

  • Page 28: 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)
  • 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)
  • Page 31 CD board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (forward side) (reverse side)
  • Page 32 Front board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (forward side) (reverse side) 2-10...
  • Page 33 Trans board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) 2-11...
  • 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.MB431SCH)

  • Page 35: Parts List

    PARTS LIST [ UX-G5 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix A ------------------------- Australia US ---------------------- Singapore UP ---------------------------- Korea UT --------------------------- Taiwan UW ---------- Brazil,Mexico,Peru UY ----------------------- Argentina UJ --------------------- U.S.Military...
  • Page 36 Exploded view of general assembly and parts list Block No. F901 F902 Power trans. board Front board 63 62 board Dusb board CD board...
  • Page 37 Amp. board Main board...
  • Page 38 General Assembly Block No. [M][1][M][M] Symbol No. Part No. Part Name Description Local  BI1080670302V1 FRONT CABINET NO USB BIBT000418 SCREW 2.6 XL8(x23) BI1081770101X1 SLIDE BLOCK BI1080690201V1 CD DOOR BI1080770101V1 BOTTOM LENS R BI1080780101V1 BOTTOM LENS L BI1080750101V1 TOP LENS R BI1080800101V1 VOLUME KNOB ABS-T700 94HB...

  • Page 39: Cd Mechanism Assembly And Parts List

    CD mechanism assembly and parts list Block No. The parts without symbol number are not service.
  • Page 40 CD mechanism Block No. [M][B][M][M] Symbol No. Part No. Part Name Description Local  BIAJ7000601E CHASSIS BIAJ6600601G GEAR COVER BIAJ6600601D GEAR BIAJ6600601B GEAR BIAJ6600601F GEAR BIAJ7000601A SHAFT BISOHAAN PICK UP BIAJ3100601B SPINDLE MOTOR BIAJ3100601A FEED MOTOR BIAJ6000601D SCREW M2XL3(x4) BI3409000174 LEAF SWITCH BIAJ4100601E SUB PCB...

  • Page 41: Electrical Parts List

    Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1] C402 BICE107160MP01 E CAPACITOR 100uF 16V  Symbol No. Part No. Part Name Description Local C403 BICC150500JA04 C CAPACITOR 15pF 50V C404 BICC330500JA04 C CAPACITOR 33pF 50V C405...
  • Page 42  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C683 BICE476160MP01 E CAPACITOR 47uF 16V R449 BIRC1010105A00 C RESISTOR 100Ω 1/10W C684 BICC101500JA04 C CAPACITOR 100pF 50V R451 BIRC1030105A00 C RESISTOR 10KΩ...

  • Page 43: Front Board

     Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R629 BIRC1220105A00 C RESISTOR 1.2KΩ 1/10W D362 1SS133 FR DIODE BI31SS133M000V7 R630 BIRC1220105A00 C RESISTOR 1.2KΩ 1/10W D363 1SS133 FR DIODE BI31SS133M000V7 R631 BIRC5630105A00 C RESISTOR...

  • Page 44: Amp Board

    AMP board  Symbol No. Part No. Part Name Description Local Block No. [0][4] BN591 BI12P402341 CONNECTOR WIRE 4P for AMP CN204 CN351 BI12S160034V SOCKET  Symbol No. Part No. Part Name Description Local J364 1SS133 FR DIODE BI31SS133M000V7 JK552 BI23B0292 HEADPHONE JACK JK591...
  • Page 45  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local D235 ISS355 DIODE BI31SS355A0077 R134 BIRC2240105A00 C RESISTOR 220KΩ 1/10W D236 ISS355 DIODE BI31SS355A0077 R135 BIRC4730105A00 C RESISTOR 47KΩ 1/10W R136 BIRC5600105A00 C RESISTOR 56Ω...
  • Page 46  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R281 BIRC2200105A00 C RESISTOR 22Ω 1/10W C708 BICC473250KA04 C CAPACITOR 0.047uF 25V R282 BIRC2200105A00 C RESISTOR 22Ω 1/10W C709 BICE227063MP11 E CAPACITOR 220uF 6.3V R283 BIRC1030105A00...
  • Page 47  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C878 BICC470500JA04 C CAPACITOR 47pF 50V R880 BIRC1210085M00 C RESISTOR 120Ω 1/8W C880 BICC470500JA04 C CAPACITOR 47pF 50V R881 BIRC1210085M00 C RESISTOR 120Ω...

  • Page 48: Packing Materials And Accessories Parts List

    Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. A1A2(A,UP version) A4 A5 3-14...
  • Page 49 Packing and Accessories Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local  BI440001578000W INST BOOK ENG LVT1349-010A BI440001567000W INST BOOK ENG LVT1349-003A BI440001565000W INST BOOK KOR LVT1349-007A BI440001545000W INST BOOK ENG CHI(PEKIN) LVT1349-006A BI440001568000W INST BOOK CHI(TAIWAN) LVT1349-009A BI440001564000W INST BOOK ENG SPA POR LVT1349-004A...

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