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JVC KD-G615 Service Manual

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SERVICE MANUAL
2
2005
MA147
1
PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26
5
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-27
CD RECEIVER
KD-G615

TABLE OF CONTENTS

COPYRIGHT © 2005 Victor Company of Japan, Limited
Area suffix
UT ------------------------ Taiwan
UH --------------------- Thailand
UN ------------------------ Asean
U ------------------- Other Areas
No.MA147
2005/2

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  • Page 1: Table Of Contents

    SERVICE MANUAL CD RECEIVER MA147 2005 KD-G615 Area suffix UT ------------------------ Taiwan UH --------------------- Thailand UN ------------------------ Asean U ------------------- Other Areas TABLE OF CONTENTS PRECAUTIONS ............... 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION AUDIO AMPLIFIER SECTION Maximum Power Output Front 50 W per channel Rear 50 W per channel 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more Continuous Power Output (RMS) Front than 0.8% total harmonic distortion. 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more Rear than 0.8% total harmonic distortion.

  • 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 HOW TO IDENTIFY MODELS 2.1.1 NAME PLATE Discernment sign 1-6 (No.MA147)

  • Page 7: Disassembly

    SECTION 3 DISASSEMBLY Main body 3.1.1 Removing the front panel assembly (See Fig.1) (1) Push the detach button in the lower right part of the front panel assembly and remove the front panel assembly. Front panel assembly (2) Take out the front panel assembly. Detach button Fig.1 3.1.2 Removing the bottom cover...
  • Page 8 3.1.3 Removing the front chassis assembly (See Figs.3 and 4) • Prior to performing the following procedures, remove the front panel assembly and bottom cover. Joint d Joint e (1) Remove the two screws A on the both sides of the main body.
  • Page 9 3.1.5 Removing the rear bracket (See Fig.6) • Prior to performing the following procedure, remove the bottom cover. Rear bracket (1) Remove the three screws E, three screws F and three screws G attaching the rear bracket on the back side of the main body.
  • Page 10 3.1.8 Removing the CD mechanism assembly (See Fig.9) • Prior to performing the following procedure, remove the front panel assembly, front chassis assembly, side panel, bottom cover, rear bracket, main board and CD mecha control board. (1) Remove the three screws K attaching the top chassis. (2) Take out the CD mechanism assembly.
  • Page 11 CD Mechanism section 3.2.1 Removing the top cover (See Figs.1 and 2) (1) Remove the four screws A on the both side of the body. (2) Lift the front side of the top cover and move the top cover backward to release the two joints a. Top cover Joints a Fig.1...
  • Page 12 3.2.2 Removing the connector board Wires (See Figs.3 to 5) CAUTION: Before disconnecting the flexible wire from the pickup, solder the short-circuit point on the pickup. No observance of this in- struction may cause damage of the pickup. (1) Remove the screw B fixing the connector board. (2) Solder the short-circuit point on the pickup.
  • Page 13 3.2.3 Removing the DET switch (See Figs.6 and 7) (1) Extend the two tabs c of the feed sw. holder and pull out the switch. (2) Unsolder the DET switch wire if necessary. switch Connector board Pickup Fig.6 Tab c DET switch DET switch wire Tab c...
  • Page 14 3.2.4 Removing the chassis unit (See Figs.8 and 9) • Prior to performing the following procedure, remove the top Chassis unit cover and connector board. Suspension spring (L) (1) Remove the two suspension springs (L) and (R) attaching Suspension spring (R) the chassis unit to the frame.
  • Page 15 3.2.5 Removing the clamper assembly (See Figs.10 and 11) • Prior to performing the following procedure, remove the top cover. (1) Remove the clamper arm spring. Clamper arm (2) Move the clamper assembly in the direction of the arrow to spring release the two joints d.
  • Page 16 3.2.6 Removing the loading / feed motor assembly (See Figs.12 and 13) • Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (1) Remove the screw C and move the loading / feed motor as- sembly in the direction of the arrow to remove it from the chassis rivet assembly.
  • Page 17 3.2.7 Removing the pickup unit Pickup unit (See Figs.14 to 18) • Prior to performing the following procedure, remove the top cover, connector board and chassis unit. (1) Remove the screw D and pull out the pu. shaft holder from the pu.
  • Page 18 3.2.9 Removing the trigger arm Joint k (See Figs.19 and 20) • Prior to performing the following procedure, remove the top cover, connector board and clamper unit. (1) Turn the trigger arm in the direction of the arrow to release Trigger arm the joint k and pull out upward.
  • Page 19 3.2.11 Removing the mode sw. / select lock arm Link plate Joint t (See Figs.22 and 23) Mode sw. • Prior to performing the following procedure, remove the top plate assembly. Select lock arm (1) Bring up the mode sw. to release from the link plate (joint t) and turn in the direction of the arrow to release the joint u.
  • Page 20 3.2.12 Reassembling the mode sw. / select lock arm Select lock arm spring (See Figs.24 to 26) REFERENCE: Hook w Reverse the above removing procedure. (1) Reattach the select lock arm spring to the top plate and set Joint v Joint v the shorter end of the select lock arm spring to the hook w on the top plate.
  • Page 21 3.2.13 Removing the select arm R / link plate Joint c' Link plate Joint r (See Figs.27 and 28) Joint b' • Prior to performing the following procedure, remove the top Select arm R plate assembly. (1) Bring up the select arm R to release from the link plate (joint a') and turn as shown in the figure to release the two Joint b' joints b' and joint c'.
  • Page 22 3.2.15 Removing the loading roller assembly (See Figs.31 to 33) Loading roller assembly • Prior to performing the following procedure, remove the Roller guide clamper assembly and top plate assembly. spring (1) Push inward the loading roller assembly on the gear side and detach it upward from the slot of the joint g' of the lock arm rivet assembly.
  • Page 23 3.2.16 Removing the loading gear 5, 6 and 7 (See Figs.35 and 36) Loading gear bracket • Prior to performing the following procedure, remove the top cover, chassis unit, pickup unit and top plate assembly. Loading gear 6 (1) Remove the screw K attaching the loading gear bracket. The loading gear 6 and 7 come off the loading gear brack- (2) Pull out the loading gear 5.
  • Page 24 3.2.17 Removing the gears Joint p' (See Figs.37 to 40) • Prior to performing the following procedure, remove the top Change plate cover, chassis unit, top plate assembly and pickup unit. rivet assembly • Pull out the loading gear 3. (See Fig.35.) (1) Pull out the feed gear.
  • Page 25 3.2.18 Removing the turn table / spindle motor Turn table (See Figs.41 and 42) • Prior to performing the following procedure, remove the top cover, connector board, chassis unit and clamper assembly. (1) Remove the two screws L attaching the spindle motor as- sembly through the slot of the turn table on top of the body.

  • Page 26: Adjustment

    (3) Digital tester Output Level Line out 2.5V (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 27: Troubleshooting

    SECTION 5 TROUBLESHOOTING Feed section Is the voltage output at Is the wiring for IC621 Is 5V present at IC681 Check CD 8V. IC621 pin 40? pin 40 correct? pin 6? Check the vicinity of IC621. Is 4V present at both Is 6V or 2V present at Check the feed motor sides of the feed motor?
  • Page 28 Signal processing section Compare the L-ch and Is the sound output from No sound from either R-ch to locate the both channels (L, R)? channel. defective point. Normal Is 9V present at IC161 Is 9V present at IC901 Check IC901 and its pin 26? pin 10? peripheral circuits.
  • Page 29 Maintenance of laser pickup Replacement of laser pickup (1) Cleaning the pick up lens Before you replace the pick up, please try to clean the lens Turn of the power switch and, disconnect the with a alcohol soaked cotton swab. power cord.
  • Page 30 16 PIN CORD DIAGRAM Black Green OR/WH Violet BL/WH Gray Blue WH White Yellow WH/BK Brown Orange GN/BK VI/BK GY/BK MEMORY 16 YL 8 BK 7 RD 15 OR/WH 13 BR 3 GN 11 GN/BK 2 VI 10 VI/BK 4 WH 12 WH/BK 1 GY 9 GY/BK...
  • Page 31 (No.MA147)1-31...
  • Page 32 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.MA147) Printed in Japan...
  • Page 33 SCHEMATIC DIAGRAMS CD RECEIVER KD-G615 CD-ROM No.SML200502 Area suffix UT ------------------------ Taiwan UH --------------------- Thailand UN ------------------------ Asean U ------------------- Other Areas Contents Block diagram Standard schematic diagrams (For UT,UH,UN,U version) Standard schematic diagrams (For UT2,UH2,UN2,U2 version) 2-8 to 10 Printed circuit boards No.MA147SCH...

  • Page 34: 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 35: Block Diagram

    IC602 LCDDA BUSINT S616, S617 CD CHANGER LCDCE REMOCON KEY MATRIC REMOCON CONTROL IC801 BUSCLK LOAD&FEED LOAD/FEED+, LOAD/FEED- ENC1 JVC BUS KEY0, KEY1 ENC2 MOTOR AUX.L REMOCON KEY2 DIMMER AUX.R LCDCL, LCDDA ENC1 LCDCE, DIMMER ENC2 D601 to D643 CN001...

  • Page 36: Standard Schematic Diagrams (For Ut,Uh,Un,U Version)

    Standard schematic diagrams (For UT, UH, UN, U version) Main amplifier section IC271 CD4066BPW-X R372 IC301 TB2906HQ R373 QAU0312-002 C276 IC361 0.022 C311 R311 R317 NJM2160BV-X R279 0.47 1.2K Q274 C274 0.022 R362 R361 C277 0.0056 0.47 R312 R318 LPF2 C275 C312 1.2K...
  • Page 37 CD servo control section R585 C585 C587 C589 R613 R581 R583 C611 CD.L 8.2K 150P 4.7/35 R589 4.7/35 C577 R614 R612 R611 R610 C610 R572 C586 C588 C590 R582 R584 2.2M Q573 2SB624/4/-X CD.R 8.2K 150P 4.7/35 4.7/35 Q571 R586 UN2111-X R601 R602...
  • Page 38 LCD & Key control section IC602 RPM7338-V4 R670 DIMOUT DIM_CON REMOCON ACC5V LCD1 ENC1 ENC2 LCDCE LCDDA LCDCL KEY2 KEY1 KEY0 AUX.R IC601 AUX.GND PT6523LQ-L AUX.L R606 R605 R604 R603 R602 R601 KEY2 3.9K 2.7K 1.8K 1.2K R672 COM1 R671 COM2 R622 R623...

  • Page 39: Standard Schematic Diagrams (For Ut2,Uh2,Un2,U2 Version)

    Standard schematic diagrams (For UT2, UH2, UN2, U2 version) Main amplifier section IC271 CD4066BPW-X R372 IC301 TB2906HQ R373 QAU0223-001 C276 IC361 0.022 C311 R311 R317 NJM2160BV-X R279 0.47 1.2K Q274 C274 0.022 R362 R361 C277 0.0056 0.47 R312 LPF2 R318 C275 C312 1.2K...
  • Page 40 CD servo control section R585 C585 C587 C589 R613 R581 R583 C611 CD.L 8.2K 150P 4.7/35 R589 C577 4.7/35 R614 R612 R611 R610 C610 R572 C586 C588 C590 R582 R584 2.2M Q573 2SB624/4/-X CD.R 8.2K 150P 4.7/35 4.7/35 Q571 R586 UN2111-X R601 R602...
  • Page 41 LCD & Key control section IC602 RPM7338-V4 R670 DIMOUT DIM_CON REMOCON ACC5V LCD1 ENC1 ENC2 LCDCE LCDDA LCDCL KEY2 KEY1 KEY0 AUX.R IC601 AUX.GND PT6523LQ-L AUX.L R606 R605 R604 R603 R602 R601 KEY2 3.9K 2.7K 1.8K 1.2K R672 COM1 R671 COM2 R622 R623...

  • Page 42: Printed Circuit Boards

    Printed circuit boards Main board (For UT, UH, UN U version) Forward side Reverse side C901 D325 D972 C901 C341 C910 R971 C271 R972 C910 CN901 IC901 J321 IC901 J321 Q341 Q321 Q903 R341 C907 L901 D331 J801 CN901 J801 D971 D901 C912...
  • Page 43 Main board (For UT2, UH2, UN2, U2 version) Forward side Reverse side C901 D325 D972 C901 C341 R971 C910 C271 R972 C910 CN901 IC901 J321 IC901 J321 Q341 Q321 Q903 R341 C907 L901 D331 J801 D971 CN901 J801 D901 C325 C851 R353 C912...
  • Page 44 CD mecha control board (Common) Forward side Reverse side C587 C588 R583 R584 R585 R586 Q502 C596 C595 C539 R593 R587 R589 R588 BUSCK C694 PDET C536 TH501 C598 C535 R572 R615 C597 R592 Q571 R605 R606 CN601 R502 C513 R559 C573 R503...
  • Page 45 < M E M O >...
  • Page 46 Victor Company of Japan, Limited AV & MULTIMEDIA COMPANY CAR ELECTRONICS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan Printed in Japan (No.MA147SCH)

  • Page 47: Kd-G615

    PARTS LIST [ KD-G615 ] * All printed circuit boards and its assemblies are not available as service parts. Area suffix Taiwan Thailand Asean Other Areas - Contents - Exploded view of general assembly and parts list (Block No.M1) CD mechanism assembly and parts list (Block No.MB) Electrical parts list (Block No.01~03) (KD-G615_UT,UH,UN,U)
  • Page 48 Exploded view of general assembly and parts list Block No. only UT version Mechanism control board Switch board...
  • Page 49 Main board Switch board...
  • Page 50 General Assembly Block No. [M][1][M][M]  Symbol No. Part No. Part Name Description Local GE10043-210A TOP CHASSIS GE40135-001A EARTH PLATE GE30938-003A SIDE PANEL QYSDST2604ZA TAP SCREW M2.6 x 4mm(x3) GE40235-001A SCREW (x2) GE40235-004A SCREW (x2) QYSDST2604ZA TAP SCREW M2.6 x 4mm(x3) QYSDST2610ZA TAP SCREW M2.6 x 10mm...
  • Page 51 CD mechanism assembly and parts list Block No. Grease TN-2001-1013 TNG-87 GP-501MK CFD-005Z GP-305T The parts without symbol number are not service.
  • Page 52 CD mechanism Block No. [M][B][M][M]  Symbol No. Part No. Part Name Description Local 30320101T FRAME 30320102T TOP COVER 30320115T DANPER F (x2) 30320116T DANPER R 303205505T CHASSIS RIVET 303205503T CHANGE P. RVT A 303205301T CLAMPER ASSY 303205302T SPINDLE MOTOR A 30320502T CLAMPER ARM 30320503T...

  • Page 53: Electrical Parts List

    Electrical parts list Main board (KD-G615_UT,UH,UN,U)  Symbol No. Part No. Part Name Description Local Block No. [0][1] D718 MA8062/M/-X Z DIODE  Symbol No. Part No. Part Name Description Local D719 MA8062/M/-X Z DIODE D720 MA8062/M/-X Z DIODE D781 MA111-X SI DIODE IC31...
  • Page 54  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local C252 QERF0JM-476Z E CAPACITOR 47uF 6.3V M C804 NDC31HJ-220X C CAPACITOR 22pF 50V J C253 QERF1CM-106Z E CAPACITOR 10uF 16V M C851 QERF1CM-106Z E CAPACITOR 10uF 16V M...
  • Page 55  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local R260 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R758 NRSA63J-473X MG RESISTOR 47kΩ 1/16W J R261 NRSA63J-821X MG RESISTOR 820Ω 1/16W J R759 NRSA63J-473X MG RESISTOR 47kΩ...
  • Page 56 Switch board (KD-G615_UT,UH,UN,U)  Symbol No. Part No. Part Name Description Local Block No. [0][2] R644 NRSA63J-471X MG RESISTOR 470Ω 1/16W J  Symbol No. Part No. Part Name Description Local R646 NRSA63J-471X MG RESISTOR 470Ω 1/16W J R648 NRSA63J-331X MG RESISTOR 330Ω...
  • Page 57  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local C501 NCB31HK-103X C CAPACITOR 0.01uF 50V K C642 NDC31HJ-101X C CAPACITOR 100pF 50V J C502 NCB31HK-103X C CAPACITOR 0.01uF 50V K C643 NCB31HK-103X C CAPACITOR 0.01uF 50V K...
  • Page 58  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local R554 NRSA63J-333X MG RESISTOR 33kΩ 1/16W J R657 NRSA63J-222X MG RESISTOR 2.2kΩ 1/16W J R555 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R668 NRSA63J-470X MG RESISTOR 47Ω...
  • Page 59  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local Q977 2SB709A/QR/-X TRANSISTOR NCB31HK-272X C CAPACITOR 2700pF 50V K NCB31HK-103X C CAPACITOR 0.01uF 50V K MA111-X SI DIODE NCB31HK-103X C CAPACITOR 0.01uF 50V K MA111-X SI DIODE NCB31EK-473X...
  • Page 60  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local C706 NCB31EK-104X C CAPACITOR 0.1uF 25V K NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J C707 NCB31EK-104X C CAPACITOR 0.1uF 25V K NRSA63J-393X MG RESISTOR 39kΩ...
  • Page 61  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local R714 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J R976 NRSA02J-203X MG RESISTOR 20kΩ 1/10W J R719 NRSA63J-0R0X MG RESISTOR 0Ω 1/16W J R977 NRSA02J-822X MG RESISTOR 8.2kΩ...
  • Page 62  Symbol No. Mechanism control board Part No. Part Name Description Local (KD-G615_UH2,UN2,U2) R608 NRSA63J-821X MG RESISTOR 820Ω 1/16W J Block No. [0][6] R609 NRSA63J-122X MG RESISTOR 1.2kΩ 1/16W J R610 NRSA63J-182X MG RESISTOR 1.8kΩ 1/16W J  Symbol No. R611 NRSA63J-272X MG RESISTOR...
  • Page 63  Symbol No.  Symbol No. Part No. Part Name Description Local Part No. Part Name Description Local C604 NCB31HK-103X C CAPACITOR 0.01uF 50V K R517 NRSA63J-101X MG RESISTOR 100Ω 1/16W J C605 NCB31HK-682X C CAPACITOR 6800pF 50V K R518 NRSA63J-101X MG RESISTOR 100Ω...
  • Page 64  Symbol No. Part No. Part Name Description Local R610 NRSA63J-101X MG RESISTOR 100Ω 1/16W J R611 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J R612 NRSA63J-202X MG RESISTOR 2kΩ 1/16W J R613 NRSA63J-102X MG RESISTOR 1kΩ 1/16W J R614 NRSA63J-153X MG RESISTOR 15kΩ...
  • Page 65 <MEMO> 3-19...
  • Page 66 Packing materials and accessories parts list Block No. A15 A16 A1 A2 UT,UH,UN, UH2,UN2 version U,U2 version KIT: A5 A6A7 A8 A9 U,U2 version 3-20...
  • Page 67 Packing and Accessories Block No. [M][3][M][M]  Symbol No. Part No. Part Name Description Local GET0265-001A INST BOOK ENG THA G615U,G615U2,G615UH,G615UH2 GET0265-003A INST BOOK ENG INA G615UN,G615UN2 GET0265-007A INST BOOK ENG CHI(TAIWAN) G615UT GET0265-004A INSTALL MANUAL G615U,G615U2,G615UH,G615UH2 GET0265-006A INSTALL MANUAL G615UN,G615UN2 GET0265-008A INSTALL MANUAL...

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