JVC UX-G68E Service Manual
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JVC UX-G68E Service Manual

JVC UX-G68E Service Manual

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SERVICE MANUAL
2 S ERVICE MANUAL
2007
MB595
UX-G68E,UX-G68EN,UX-G68EV
SP-UXG68
COPYRIGHT © 2007 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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
Specific Service Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20
5
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21
CA-UXG68
SUPER VIDEO

TABLE OF CONTENTS

COPYRIGHT © 2007 Victor Company of Japan, Limited
SP-UXG68
No.MB595
2007/2

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  • Page 1 SERVICE MANUAL MICRO COMPONENT SYSTEM MB595 2007 2 S ERVICE MANUAL UX-G68E,UX-G68EN,UX-G68EV SP-UXG68 CA-UXG68 SP-UXG68 SUPER VIDEO COPYRIGHT © 2007 Victor Company of Japan, Limited Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
  • Page 2 SPECIFICATION CA-UXG68 Amplifier Output Power 120 W (60 W + 60 W) at 6Ω (10% THD) Audio Input AUX 500 mV/50 kΩ (at "AUX LVL1") 250 mV/50 kΩ (at "AUX LVL2") 125 mV/50 kΩ (at "AUX LVL3") Digital output DVD OPTICAL DIGITAL OUT : -21 dBm to -15 dBm (660 nm ±30 nm) Digital input USB MEMORY Video Out...

  • 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 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 6: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.MB595)

  • Page 7: Disassembly

    SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the Metal cover (See Fig.1 and 2) (1) Remove the four screws A (both side) attaching the Metal cover. (See Fig.1) (2) Remove the two screws B attaching the Rear cover. (See Fig.2) (3) Remove the five screws C attaching the Metal cover.

  • Page 8: See Fig.3 To

    3.1.2 Removing the Front panel assembly (See Fig.3 to 5) (1) Disconnect the card wire from the FL board assembly con- nected to connector CN205 of the Micon board assembly. (See Fig.3) (2) Remove the two screws D attaching the Front panel as- sembly.

  • Page 9: Table Of Contents

    3.1.3 Removing the Fan (See Fig.6, 7) (1) Disconnect the connector wire from the Fan connected to connector CN602 of the Audio board assembly. (See Fig.6) (2) Remove the two screws E attaching the Fan. (See Fig.7) 3.1.4 Removing the Tuner pack CN602 (See Fig.7, 8) (1) Disconnect the card wire from the Tuner pack connected to...

  • Page 10: No.mb595)1

    3.1.5 Removing the Audio board assembly (See Fig.9 to 11) (1) Disconnect the connector wire from the Power transformer CN722 CN217 CN203 connected to connector CN601 of the Audio board assem- CN810 bly. (See Fig.9) (2) Disconnect the card wire from the USB jack board assem- bly connected to connector CN811 of the Audio board as-...

  • Page 11: See Fig.

    3.1.6 Removing the Micon board assembly (See Fig.12, 13) (1) Disconnect the connector wire from Power transformer connected to connector CN202 of the Micon board assem- CN21 bly. (See Fig.12) (2) Disconnect the card wire from Power trans board assembly connected to connector CN201 of the Micon board assem-...
  • Page 12 3.1.7 Removing the DVD mechanism assembly (See Fig.14 to 16) (1) Remove the two screws M (both side) attaching the brack- et. (See Fig.14) (2) Disconnect the connector wire from DVD mechanism as- sembly connected to connector CN803 of the USB jack board assembly.
  • Page 13 3.1.9 Removing the Power trans board assembly (See Fig.18 to 20) (1) Remove the one screw Q attaching the Power trans board assembly. (See Fig.18) (2) Remove the one screw R attaching the Power trans board assembly. (See Fig.19) (3) Disconnect the connector wire from Power cord connected to connector CN101 and disconnect the connector wire...
  • Page 14 3.1.10 Removing the FL board assembly (See Fig.21) (1) Remove the five screws S attaching the FL board assem- bly. 3.1.11 Removing the Key board assembly (See Fig.21) (1) Remove the Volume knob. (2) Remove the six screws T attaching the Key board assem- bly.
  • Page 15 DVD mechanism 3.2.1 Removing the traverse mechanism (See Fig.1 to 6) (1) Remove the two screws A attaching the tramecha holder from top side of DVD mechanism assembly. (See Fig.1) Clamper base (2) Remove the two screws B attaching the DVD module board.
  • Page 16 DVD module board Solder short land section Fig.5 DVD module board CN101 CN201 Fig.3 DVD mechanism assembly Traverse mechanism assembly Fig.6 Fig.4 1-16 (No.MB595)
  • Page 17 3.2.2 Removing the pickup assembly (See Fig.7 to 11) (1) Remove the two rod springs pressing the guide shaft. (See Fig.7) (SHAFT) (2) Remove the screw E and F attaching the spring holder. (See Fig.8) (3) Remove the read screw from traverse mechanism assem- (T.TABLE) bly.
  • Page 18 3.2.3 Removing the feed motor assembly (See Fig.12) (1) Remove the one screw G attaching the feed motor assem- bly. Splder part (2) Remove the feed motor wires from solder part of spindle motor board. Middle gear Lead screw Fig.12 3.2.4 Removing the spindle motor assembly (See Fig.13) (1) Remove the two screws H attaching the spindle motor from...
  • Page 19 3.2.5 Removing the tray assembly (See Fig.14 & 15) (1) Remove the two screws J attaching the clamper base. (See Fig.14) (2) Remove the one screw K attaching the shaft guide from bottom side. (See Fig.14) (3) Remove the two screws L attaching the shaft guide from top side.

  • Page 20: Adjustment

    SECTION 4 ADJUSTMENT Attention in service of DVD section (1) When pickup, Flash ROM, DVD module board were changed, initialize EEPROM by all means. (2) When full initialization was executed, execute learning with a DVD test disk by all means. Test disc : VT-501, VT-502 Learning method : It is adjusted automatically by normal playback of a DVD test disc.

  • Page 21: Troubleshooting

    vi) During CHECK mode, press '6' key on REMOTE CONTROL to enter DVD x 2 JITTER MEASUREMENT MODE. (2 seconds) Status : AA 00 cc cc jj jj (Static) c c c c j j j j vii) During CHECK mode, press '7' key on REMOTE CONTROL to view DVD module EEPROM content in -1 address step.
  • Page 22 Victor company of Japan, Limited Audio/Video Systems category 10-1,1chome,Ohwatari-machi,Maebashi-city,Gumma-ken, 371-8543,Japan (No.MB595) Printed in Japan...

  • Page 23: Micro Component System

    SCHEMATIC DIAGRAMS MICRO COMPONENT SYSTEM UX-G68E,UX-G68EN,UX-G68EV CD-ROM No.SML200702 SP-UXG68 CA-UXG68 SP-UXG68 SUPER VIDEO 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 24 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 25: Block Diagram

    Block diagram Audio amplifier section Front panel section (Headphone,AUX,USB) HPL/R D555,D556 Q561 Q550,RY550 OUTL/R L+/-, R+/- GAIN IC501 H/P MUTE SPK RELAY SPEAKER HEADPHONE CONTROL HPL/R POWER AMP. SPKRLY OUTPUT HPSW TEMP INL/R Q500,Q501,Q510 SYSTEM MUTE SMUTE Q503 to Q507 IC850,IC851,Q850 AUXL/R AUXL/R...
  • Page 26 Standard schematic diagrams Primaly section E / E E / E N / E V A / U F / U P TO CN601 OF TO CN601 OF TO CN202 OF TO CN202 OF GVA10111-A1 GVA10112-A1 GVA10111-A1 GVA10112-A1 (PAGE 4/6) (PAGE 4/6) (PAGE 2/6) (PAGE 2/6)
  • Page 27 Audio section TO CN203&CN204 OF GVA10111-A1 (PAGE 2/6) *1 EMC C/M (ESD) FROM TRANSFORMER T101 (PAGE 1/6) TO FAN REF.NO E/EE/EN/EV OTHERS FW213 C571 QUM156-07DGZ4-E CN602 0.0033/50 C572 CN601 QGA2501C1-03 QGA3901C1-03 C577 0.0033/50 0.001/50 C578 GVA10112-A1 C573 C574 IC501 D580 0.047/50 D581 D586...
  • Page 28 FROM FW211 OF GVA10112-A2 TO FW851 OF GVA10111-A4 TO CN215 OF GVA10111-A3 FROM CN100 OF ALPS MECHA FROM CN1 OF QAU0472-001(U) OR QAU0473-001(E) Micon section (PAGE 1/6) (PAGE 5/6) (PAGE 6/6) (PAGE 5/6) CN201 CN206 CN205 CN90 CN11 QGD2504C1-04Z QGD2504C1-03Z QGF1205C2-17 QGF1205C2-15 QGF1205C2-15...
  • Page 29 Front panel section C701 C700 47/25 (E VER. USE) 47/25 (E VER. USE) CN215 FW710 FW710 QGF1205F2-15 DI700 AC 3.6V AC 3.6V -29.8 -30V -30V FL DISPLAY -30V REMOCON REMOCON REMOCON USB5V FW700 FW700 DGND KEY21 KEY21 5.2V VOL- USB5V USB5V 5.2V VOL+...
  • Page 30 Video control section GVA10111-A1(2/2) J401 QNN0572-001 R470 R480 R471 R472 0.4V VIDEO DRIVER R401 R481 R473 Q480 R474 IC450 R475 BH7868FS-X R476 R482 R477 0.1/16 0.4V 2.3V VCC1 R478 C OUT C451 R483 R479 Q482 R402 S-DCOUT CV OUT 1.4V DAC3(R/C,Cr) CROUT VGND...
  • Page 31 DVD section (1/3) K354 48MHz NQR0022-002X C370 D1.2V REG. C328 0.01 DVDPWR 3.9V D1.2V Cont P3.3V 1.2V C302 47/4 IC302 MM1701CH-X CN301 QGA1002C1-06X for ICE D301 DGND RB521S-30-X CPURST RESET EEPROM R306 SCLK C564 DGND R307 SDATA DGND UCLK EXDT8 R353 (UCLK) S2CLK...
  • Page 32 DVD section (2/3) SDRAM FLASH ROM IC505 IC509 SG32A90TFIR3 K4S641632K-UC75 EXADT15 0.4V 0.5V EXADR16 C560 3.3V EXADT14 0.7V 3.3V 2.8V 2.7V MDQ15 MDQ0 */BYTE DQ15 EXADT13 0.5V C551 3.3V VDDQ VSSQ EXADT12 0.7V 0.8V EXDT15 MDQ1 2.8V 2.7V MDQ14 DQ14 EXADT11 0.7V 1.5V...
  • Page 33 DVD section (3/3) Loader section P3.3V QSW1074-001 QGF1016F3-05 DGND R859 R860 Q801 UN2113X IC801 MM1565AF-X KRA104S-X R891 Vout CN801 QGF1016F8-05W IC891 Cont C819 CN811 QGA2001F6-05X R819 R811 1/2W K811 R812 K812 1/2W LVA10626-611B (3/3) NOTES VOLTAGES ARE DC-MEASURED WITH A DIGITAL VOLT METER WITHOUT INPUT SIGNAL. NI STANDS FOR NOT INSERTED PARTS.
  • Page 34 Printed circuit boards (FL board) Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (main board) FW710 C330 C380 C381 IC380 R708 R707 R706 S700 S703 S702 S701 R303 CN205 R301 D381 R344 D751 R304...
  • Page 35 Amplifier board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) (Power amplifier board) J570 J650 C650 D652 Q650 R659 R535 D651 W502 C651 R544 C578 Q506 R534 Q507 D503 R539 Q509 C572 R531 IC501 R537 C571...
  • Page 36 DVD board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) forward side R104 R103 R129 R109 Q101 C291 R110 CN301 C352 R373 TP303 CN201 C351 R372 TP302 C201 C202 C205 R458 Q102 C204 CN101 TP112 C203...
  • Page 37 < M E M O >...
  • Page 38 Victor Company of Japan, Limited Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MB595SCH)

  • Page 39: Parts List

    PARTS LIST UX-G68E,UX-G68EN,UX-G68EV * 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 DVD mechanism assembly and parts list (Block No.MJ) 3- 8 DVD loading base assembly and parts list (Block No.MN)
  • Page 40 Exploded view of general assembly and parts list Block No. Power amplifier board FL board Switch board Jack board...
  • Page 41 Power amplifier board Main board h board Power supply board ck board...
  • Page 42 General Assembly Block No. [M][1][M][M] Symbol No. Part No. Part Name Description Local  GV20431-009A F/PANEL ASSY GV30845-013A FRONT LENS GV20406-005A BUTTON GV40679-001A STANDBY LENS GV30846-001A ORNAMENT GV30847-011A FRONT DOOR E69897-002 CUSHION (x2) GV40685-004A F DOOR SPRING GV40678-002A FL SCREEN QYSDSF2608ZA TAP SCREW M2.6 x 8mm(x6)
  • Page 43 Symbol No. Part No. Part Name Description Local  QYSBSG3008ZA TAP SCREW M3 x 8mm(x6) GV30349-048A SPACER (x2) GV40680-001A FL HOLDER A (x2) GV40683-001A FL HOLDER B GV40557-001A LED HOLDER QUQU12-1516BJ-E FFC WIRE FC11 15pin 16cm QUQU12-1319BJ-E FFC WIRE FC217 13pin 19cm QUQU12-1509BJ-E FFC WIRE FC205 15pin 9cm...
  • Page 44 DVD mechanism assembly and parts list Block No. Grease FXL-D10-1M =JVG-31N =JVS-1003 =1401C < Back side > 7.0mm 0.2mm The parts without symbol number are not service.
  • Page 45 DVD mechanism Block No. [M][J][M][M] Symbol No. Part No. Part Name Description Local  LV22234-001A TM.CHASSIS LV22235-001A SPINDLE BASE QYSDST2005ZA TAP SCREW M2 x 5mm(x2) LV36555-001A G.S.HOLDER QYSDST2005ZA TAP SCREW M2 x 5mm LV44041-002A GUIDE SHAFT LV44479-001A BAR SPRING LV22236-001A FEED HOLDER QAR0165-001 FEED MOTOR...
  • Page 46 DVD loading base assembly and parts list Block No. FMU-MB6-11M Grease JVS-1003 JVG-450 < Back side > Backside DVD loading switch board DVD module board The parts without symbol number are not service.
  • Page 47 DVD loading base Block No. [M][N][M][M] Symbol No. Part No. Part Name Description Local  LV11065-010A LOADER SUB ASSY E407140-001SS C.D ROLLER E407149-001SS RUBBER TUBE LV10979-003A TRAY LV35499-003A SHAFT GUIDE LV44022-001A SHAFT QYSSSF2008ZA TAP SCREW M2 x 8mm QYSDSF2008ZA TAP SCREW M2 x 8mm(x2) QAR0197-001 MOTOR...

  • Page 48: Electrical Parts List

    Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1] D750 SLR-343VC-T  Symbol No. Part No. Part Name Description Local D751 SELU2E10C-P D852 MA111-X SI DIODE  IC200 KIA78S06P-T C200 QEZ0797-108Z E CAPACITOR 1000uF ...
  • Page 49  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C855 QETN1HM-225Z E CAPACITOR 2.2uF 50V M R365 NRSA63J-101X MG RESISTOR 100Ω 1/16W J C856 QETN1HM-225Z E CAPACITOR 2.2uF 50V M R366 NRSA63J-104X MG RESISTOR 100kΩ...
  • Page 50  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local DI700 QLF0166-001 FL TUBE D586 MA111-X SI DIODE EP801 QNZ0136-001Z EARTH PLATE D641 UDZW5.1B-X SB DIODE FW209 QUM156-11DGZ4-E WIRE D642 MA111-X SI DIODE FW700 QUM027-15Z4Z4-E WIRE...
  • Page 51  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C661 QETN1HM-106Z E CAPACITOR 10uF 50V M R642 NRSA63J-153X MG RESISTOR 15kΩ 1/16W J C662 NCB31HK-391X C CAPACITOR 390pF 50V K R643 NRSA63J-153X MG RESISTOR 15kΩ...
  • Page 52  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C101 NCB31CK-104X C CAPACITOR 0.1uF 16V K C378 NCB31CK-104X C CAPACITOR 0.1uF 16V K C102 NCB31CK-104X C CAPACITOR 0.1uF 16V K C379 NCB31CK-104X C CAPACITOR 0.1uF 16V K...
  • Page 53  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R323 NRSA63J-331X MG RESISTOR 330Ω 1/16W J K709 NQR0022-002X FERRITE BEADS R324 NRSA63J-331X MG RESISTOR 330Ω 1/16W J K710 NQR0022-002X FERRITE BEADS R325 NRSA63J-331X MG RESISTOR...

  • 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 A3 A4 A7 3-16...
  • Page 55 Packing and Accessories Block No. [M][3][M][M] Symbol No. Part No. Part Name Description Local  GVT0203-002A INTRUCTION BOOK GER FRE DUT ITA GVT0203-003A INTRUCTION BOOK SWE FIN DAN SPA POR GVT0203-004A INTRUCTION BOOK CZE POL HUN ------------ WARRANTY CARD BT-54031-1 QAL0014-003 AM LOOP ANT QAL0457-001...

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