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JVC KD-DV5000 Service Manual

Dvd/cd receiver
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Download this manual See also: Instruction Manual
SERVICE MANUAL
8
2003
49879
1
PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2
SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3
DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
5
TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LIMITED
DVD/CD RECEIVER
KD-DV5000

TABLE OF CONTENTS

Area Suffix
E ----------- Continental Europe
No.49879
2003/8

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Summary of Contents for JVC KD-DV5000

  • Page 1: Table Of Contents

    SERVICE MANUAL DVD/CD RECEIVER 49879 2003 KD-DV5000 Area Suffix E ----------- Continental Europe TABLE OF CONTENTS PRECAUTION............... . . 1-3 SPECIFIC SERVICE INSTRUCTIONS .
  • Page 2 SPECIFICATION AUDIO AMPLIFIER Maximum Power Output Front 50 W per channel SECTION Rear 50 W per channel 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz Continuous Power Output (RMS) Front at no more than 0.8% total harmonic distortion. 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz Rear at no more than 0.8% total harmonic distortion.

  • Page 3: Precaution

    SECTION 1 PRECAUTION 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 mechanism unit.

  • Page 5: Specific Service Instructions

    SECTION 2 SPECIFIC SERVICE INSTRUCTIONS This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS. (No.49879)1-5...

  • Page 6: Disassembly

    SECTION 3 DISASSEMBLY Main body section Front panel assembly 3.1.1 Removing the front panel assembly (See Fig.1) (1) Push the detach button in the lower left part of the front panel assembly and remove the front panel assembly. Detach button Fig.1 3.1.2 Removing the bottom cover (See Fig.2)
  • Page 7 3.1.3 Removing the front chassis assembly Joint d Joint e (See Figs.3 and 4) • Prior to performing the following procedures, remove the front panel assembly and bottom cover. (1) From the both sides of the main body, remove the two screws B attaching the front chassis assembly.
  • Page 8 3.1.6 Removing the main board CN782 (See Fig.7) • Prior to performing the following procedures, remove the front panel assembly, bottom cover, front chassis assembly, heat sink and rear bracket. (1) Remove the two screws M attaching the main board. (2) Disconnect the connectors CN781 CN782...
  • Page 9 3.1.8 Removing the back end board DVD mechanism assembly Shield (See Figs.9 to 11) • Prior to performing the following procedures, remove the front panel assembly, bottom cover, front chassis assembly, heat sink, rear bracket, main board and DVD mechanism assembly. (1) From the top side of the DVD mechanism assembly, re- move the two screws P attaching the heat sink (MECHA).
  • Page 10 3.1.9 Removing the front board Rear cover (See Figs. 12 to 14) • Prior to performing the following procedures, remove the front panel assembly. (1) From the back side of the front panel assembly, remove the six screws T attaching the rear cover. (See Fig.12.) (2) Release the ten joints i attaching the rear cover to the front panel assembly.
  • Page 11 DVD mechanism assembly 3.2.1 Removing the front end board (See Fig.1) Caution: Before disconnecting the flexible wire extending from the DVD Flexible wire Feed motor pickup, solder the short-circuit point on the flexible wire using Double tape a grounding soldering iron. If you do not follow this instruction, the DVD pickup may be damaged.
  • Page 12 3.2.2 Removing the top cover (See Fig.2) (1) Remove the two screws B attaching the top cover on the back of the body. Remove the top cover upward. Reference: When reassembling, set part b of the top cover under the bending part c of the chassis frame.
  • Page 13 3.2.4 Removing the clamper unit (See Fig.5 ~ 9) Clamper spring • Prior to performing the following procedure, remove the top cover and the mechanism section. (1) Remove the clamper spring on the bottom of the mecha- nism section. (2) Release part d of the clamper spring from the bending part of the chassis base assembly.
  • Page 14 3.2.6 Removing the front unit Double tape (See Fig.10 ~ 12) • Prior to performing the following procedure, remove the top cover and the mechanism section. (1) Disconnect the flexible wire from connector CN202 on the front end board at the bottom of the body. Switch board (2) Remove the screw D attaching the front unit on top of the body.
  • Page 15 3.2.7 Removing the loading arm S.A. (See Fig.13, 14) • Prior to performing the following procedure, remove the top cover, the mechanism section and the front unit. (1) From top of the body, move the loading arm S.A. from the front side upward, and release the bosses from the right and left joints k and l of the chassis base.
  • Page 16 3.2.8 Removing the rod (L)(R)/roller assembly Fig.16-1 Fig.16-2 (See Fig.15 ~ 17) • Prior to performing the following procedure, remove the top cover, the mechanism section, the front unit and the loading Collar Collar arm S.A. (1) Release the rod (L) and (R) from the joints at the bottom of the loading arm S.A.
  • Page 17 3.2.9 Removing the DVD pickup assembly Feed gear (See Fig.18 ~ 20) • Prior to performing the following procedure, remove the front end board. (1) At the bottom of the body. turn the feed gear in the direction of the arrow to move the DVD pickup outwards. (2) Remove the screw F attaching the thrust spring.
  • Page 18 3.2.10 Removing the spindle motor Spindl motor (See Fig.21) • Prior to performing the following procedure, remove the front end board. (1) Remove the two screws H attaching the spindle motor on the bottom of the body. Caution: Perform adjustment when reattaching the spindle motor. Fig.21 3.2.11 Removing the FL motor S.A.

  • Page 19: Adjustment

    SECTION 4 ADJUSTMENT Test instruments required for adjustment Standard measuring conditions (1) Digital oscilloscope (100MHz) Power supply voltage : DC14.4V(11V to 16V) : 4 Ω (2 Speakers connection) (2) Jitter meter Load impedance : 20k Ω (3) Digital tester Line output (4) Electric voltmeter Caution: (5) Tracking offset meter...
  • Page 20 For the adjustment of the jitter after replacing the pickup Connecting diagram 2 of extension cable Procedure Remove the screws attaching the backend board from the mechanism side, connect the backend board to the connectors (26pins/ 20pins) on the main board. After attaching the top chassis and front panel assemblies to the main board, attach the extension studs (STDV001-3P) on the top chassis and then attach the mechanism assembly with the nuts.
  • Page 21 After replacing the pickup, set the unit in the service mode to display a jitter value on the LCD. Confirm that the jitter value measured with a jitter meter is within 1.2% of the jitter value displayed on the LCD. If it is within 1.2%, then adjustment is not necessary.
  • Page 22 Jitter value conversion table Load the test DVD and set the unit to the service mode. A jitter value converted to the hex value is displayed on the LCD. Refer to the corresponding decimal notation value shown in the following Jitter Conversion Table. The adjustment is OK if the jitter value measured with a jitter meter is within 1.2% of the jitter value displayed on the LCD.

  • Page 23: Trouble Shooting

    SECTION 5 TROUBLE SHOOTING Service mode Standard input/output conditions Power supply voltage : DC14.4V (11V to 16V) : 4 Ω (2 Speakers connection) Load impedance : 20k Ω Line output Service mode setting procedure (The DVD does not need to be loaded before starting the following procedure.) MODE DISP (a) SEL...
  • Page 24 Operation procedures Press the [SEL], [POWER] and [SOURCE] keys simultaneously for 2 seconds. The unit enters the service mode. Destination area/region display "AREA/REGION" is Press the [SEL] key System control destination ************ indicated on the LCD. DVD unit destination ************ DVD unit region ************ Press the [DISC UP] or [DISC DW] key...
  • Page 25 Read loading and ejection error history : The error history saved in the system control "READ ERROR" is Press the [SEL] key is read and displayed. indicated on the LCD. TOTAL ERROR zzzz : Total error count. Total error count (A figure between 0 and 9999 is displayed.
  • Page 26 Press the [DISC UP] or [DISC DW] key "CLEAR ERROR" is Clear loading/ejection error history Press the [SEL] key indicated on the LCD. : The error history stored in the EEPROM is cleared (by writing 00h). Press the [DISC UP] or [DISC DW] key "READ CH-ERROR"...
  • Page 27 DVD unit check mode (1) Select "CHECK MODE" in the service mode. (2) Various check modes can be displayed according to the key operations. Check item list Indicated A/D key DVD unit operation Remark on the LCD Disc startup and through playback [__CHECK__] CHECK display remains (Playback starts from the start position)
  • Page 28 Firm ware upgrade [Use remote controller RM-RK210] (1) Upgrade • Video out terminal connect to TV monitor. • Insert upgrade disc (written firm ware) to set. • "firmware upgrade DISC... press UP" on TV monitor. • Push "UP" button on remote controller. "UP"...
  • Page 29 (No.49879)1-29...
  • Page 30 VICTOR COMPANY OF JAPAN, LIMITED AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan (No.49879) Printed in Japan...