1. Manuals
  2. Brands
  3. JVC Manuals
  4. Car Receiver
  5. KD-G279UR
  6. Service manual

JVC KD-G279UR Service Manual

Cd receiver
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
SERVICE MANUAL
4
2006
MA266
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
1
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
CD RECEIVER
KD-G279UR

TABLE OF CONTENTS

COPYRIGHT © 2006 Victor Company of Japan, Limited
No.MA266
2006/4

Advertisement

Table of Contents
loading

Related Manuals for JVC KD-G279UR

Summary of Contents for JVC KD-G279UR

  • Page 1: Table Of Contents

    CD RECEIVER MA266 2006 KD-G279UR Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) TABLE OF CONTENTS PRECAUTIONS ............... 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION AUDIO AMPLIFIER SECTION 17 W RMS × 4 Channels at 4 Ω and [< or =] 1% THD+N Power Output 80 dBA (reference: 1 W into 4 Ω) Signal to Noise Ratio 4 Ω (4 Ω to 8 Ω allowance) Load Impedance Tone Control Range Bass...

  • Page 3: Precautions

    SECTION 1 PRECAUTIONS 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 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. 1.2.1 Grounding to prevent damage by static electricity Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.
  • Page 5 Important for laser products 5.CAUTION : If safety switches malfunction, the laser is able 1.CLASS 1 LASER PRODUCT to function. 2.DANGER : Invisible laser radiation when open and inter 6.CAUTION : Use of controls, adjustments or performance of lock failed or defeated. Avoid direct exposure to beam. procedures other than those specified here in may result in 3.CAUTION : There are no serviceable parts inside the hazardous radiation exposure.

  • Page 6: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. 1-6 (No.MA266)

  • Page 7: Disassembly

    SECTION 3 DISASSEMBLY Main body section 3.1.1 Removing the front panel assembly (See Fig.11) (1) Push the detach button in the lower right part of the front panel assembly and remove the front panel assembly. Front panel assembly Detach button Fig.1 3.1.2 Removing the bottom cover (See Fig.2)
  • Page 8 3.1.4 Removing the side panel (See Fig.4) Reference: Remove the front panel assembly as required. (1) Remove the screw B and two screws C attaching the side panel on the left side of the main body. (2) Remove the side panel from the main body. Side panel Fig.4 3.1.5 Removing the rear bracket...
  • Page 9 3.1.7 Removing the CD mechanism assembly (See Fig. 7) • Remove the front panel assembly, bottom cover, side panel, rear bracket and main board. Reference: Remove the front chassis assembly as required. (1) Remove the three screws H attaching the CD mechanism assembly on the top chassis.

  • Page 10: Adjustment

    (3) Digital tester Output Level Line out 2.0V (Vol. MAX) (4) Tracking offset meter (5) Test Disc JVC :CTS-1000 Dummy load (6) Extension cable for check Exclusive dummy load should be used for AM,and FM. For FM EXTSH002-22P × 1...

  • Page 11: Troubleshooting

    SECTION 5 TROUBLESHOOTING Feed section Is 4V present at both Check the feed motor. sides of the feed motor? Check the connections Is the voltage output at between the feed motor pin 4 and pin 5 of IC501? and IC501. Is the power supply Is the voltage input at pin Check IC501.
  • Page 12 Spindle section Does the RF signal appear Is the RF waveform at Is the disk rotated? at pin 39 of IC521? pin 39 of IC521 distorted? Check the spindle motor Is the voltage output at Check the circuits in and its wiring. pin 6 and pin 7 of IC501? the vicinity of IC521 or the pickup.
  • Page 13 Signal processing section Is the sound output from Normal both channels (L, R)? Is the audio signal (including sampling Is the audio signal output No sound from either Is 9V present at pin 24 output components) at pin 18 and pin 19 of channel.
  • Page 14 16 PIN CORD DIAGRAM Green Black Violet Blue Gray BL/WH White Yellow WH/BK GN/BK VI/BK GY/BK BL/WH 7 RD RD 7 16 YL MEMORY YL 4 8 BK REMOTE 5 BL/WH 3 GN 11 GN/BK 2 VI 10 VI/BK 4 WH 12 WH/BK 1 GY 9 GY/BK...
  • Page 15 (No.MA266)1-15...
  • Page 16 Victor Company of Japan, Limited Mobile Entertainment Business Group Mobile Entertainment Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MA266) Printed in Japan...
  • Page 17 SCHEMATIC DIAGRAMS CD RECEIVER KD-G279UR CD-ROM No.SML200604 Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) Contents Block diagram Standard schematic diagrams Printed circuit boards 2-6 to 7 No.MA266SCH COPYRIGHT 2006 Victor Company of Japan, Limited.

  • Page 18: 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 19: Block Diagram

    Block diagram Main amplifier section TU_L TU_R FM/AM TUNER Function section CD mechanism control section MUTE VF1, VF2, VT1, VT2, LD, MD Q781,Q782,Q783 SUBMUTE LINEOUTMUTE PICK UP IC501 MUTING DRIVER TRACKING+/- FOCUS & FOCUS+/- TRACKING Q341, Q351 CN503 LINE OUT COIL LINE OUT CN503...

  • Page 20: Standard Schematic Diagrams

    Standard schematic diagrams Main section QAU0394-003 QNB0190-001 4.7u 3.3K 3.3K R331 R332 R335 C331 Q331 2.2K 100P KTD1304-X 1SS355W-X 0.01 R325 Q321 C321 KTD1304-X 2.2K 1SS355W-X 100P R322 R321 2SA1365/F/-X 1.5k 2SA1530A/QR/-X R351 R352 D351 2.2/50 R355 C351 Q351 100P 0.082 2.2K 0.001...
  • Page 21 CD section D501 1A3G-T1 C586 4.7/25 R584 R588 R590 C588 R586 150p 5.6K R585 C587 C585 4.7/25 5.6K R583 150p R589 R587 C534 IC981 NJU7772F15-X CN501 QGB2027M4-22S FEED- FEED+ FEED- FEED+ C523 100p RFVDD R537 1.5M VREF R535 SPINDLE- SPINDLE+ R540 C524 R565...
  • Page 22 LCD and Key control section IC681 JS686 QSW0976-001 RPM7338-V4 C682 0.012 R687 C681 4.7/6.3 R688 C687 0.022 CJ601 QGZ1601K1-15S LCD1 ILL10V QLD0419-001 ACC5V REMOCON C664 ENC1 ENC2 DIMOUT 5V_LCD_CLK 5V_LCD_DA 5V_LCD_CE KEY0 KEY1 KEY2 R605 R604 R603 R602 R601 KEY2 2.7k 1.8k 1.2k...
  • Page 23 Function section CN503 QGZ2512M1-08 R569 R509 R515 100K C506 0.01 C505 47/16 R517 R510 C518 R513 R508 3.3K R507 R511 R500 R520 2SA1705/ST/-T Q501 CN502 QGZ2512M1-10...
  • Page 24 Printed circuit boards Main board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) L901 CN901 C901 C913 J321 IC901 C341 C906 C321 C331 C351 C919 R332 R322 R901 R903 D907 C364 R902 C362 Q782 R362 R364...
  • Page 25 Switch board Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade) S607 D648 S606 D649 S615 D644 R634 D646 R633 S614 R611 B636 B633 B634 D647 R637 R638 D637 S616 R610 JS686 R602 D636 D639 D638 D641...
  • Page 26 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.MA266SCH)

  • Page 27: Parts List

    PARTS LIST KD-G279UR * All printed circuit boards and its assemblies are not available as service parts. * Please refer to the mechanism manual (model TN2007-1003, No.MY005) for the CD mechanism. - Contents - Exploded view of general assembly and parts list (Block No.M1) Electrical parts list (Block No.01~03)
  • Page 28 Exploded view of general assembly and parts list Block No. Switch board...
  • Page 29 Main board Function board...
  • Page 30 General Assembly Block No. [M][1][M][M]  Symbol No. Part No. Part Name Description Local GE10136-001A TOP CHASSIS GE40135-001A EARTH PLATE GE31894-001A HEAT SINK QYSDST2604ZA TAP SCREW M2.6 x 4mm(x3) GE40235-001A SCREW (x2) QYSDST2604ZA TAP SCREW M2.6 x 4mm(x3) GE40235-004A SCREW (x2) QYSDST2610ZA TAP SCREW...

  • Page 31: Electrical Parts List

    Electrical parts list Main board  Symbol No. Part No. Part Name Description Local Block No. [0][1] NCB31EK-223X C CAPACITOR 0.022uF 25V K  Symbol No. Part No. Part Name Description Local NCB31HK-682X C CAPACITOR 6800pF 50V K QTE1H57-105Z E CAPACITOR 1uF 50V NCB31EK-223X C CAPACITOR...
  • Page 32  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local C589 QTE0J57-476Z E CAPACITOR 47uF 6.3V R522 NRSA63J-221X MG RESISTOR 220Ω1/16W J C590 QTE0J57-476Z E CAPACITOR 47uF 6.3V R523 NRSA63J-472X MG RESISTOR 4.7kΩ1/16W J C591 QTE1C57-107Z...
  • Page 33  Symbol No. Part No. Part Name Description Local  Symbol No. Part No. Part Name Description Local R755 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R604 NRSA63J-182X MG RESISTOR 1.8kΩ 1/16W J R756 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R605 NRSA63J-272X MG RESISTOR 2.7kΩ...
  • Page 34  Symbol No. Part No. Part Name Description Local R500 NRS181J-220X MG RESISTOR 22Ω 1/8W J R501 NRSA63J-822X MG RESISTOR 8.2kΩ 1/16W J R502 NRSA63J-822X MG RESISTOR 8.2kΩ 1/16W J R503 NRSA63J-512X MG RESISTOR 5.1kΩ 1/16W J R505 NRSA63J-113X MG RESISTOR 11kΩ...
  • Page 35 <MEMO>...
  • Page 36 Packing materials and accessories parts list Block No. No additional / supplemental order of WARRANTY CARDs are available. A3 A4 A5 A6 A7 KIT : A8 A9 A10 A11 A12 3-10...
  • Page 37 Packing and Accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local GE20137-003A MOUNTING SLEEVE GE20135-007A TRIM PLATE ------------ INSTALL MANUAL ------------ INSTALL MANUAL ------------ TROUBLE SHOOTIN ------------ WARRANTY CARD ------------ REGIS. CARD VKZ4027-202 PLUG NUT VKH4871-003 MOUNT BOLT A 10 VKZ4328-003...

Table of Contents