JVC KD-DV5000 Bedienungsanleitung

SERVICE MANUAL

2003/8

DVD/CD RECEIVER

4987920038KD-DV5000

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19

5 TROUBLE SHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-23

Area Suffix

E ----------- Continental Europe

1-2 (No.49879)

SPECIFICATION

• Design and specifications are subject to change without notice.

• If a kit is necessary for your car, consult a telephone directory for the nearest car audio speciality shop.

• Mistracking may result from driving on extremely rough roads. This does not damage the unit and the disc, but will be annoying.

We recommend that you stop disc play while driving on such rough roads.

AUDIOAMPLIFIER

SECTION Maximum Power Output Front 50 W per channel

Rear 50 W per channel

Continuous Power Output (RMS) Front 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz

at no more than 0.8% total harmonic distortion.

Rear 19 W per channel into 4 Ω, 40 Hz to 20 000 Hz

at no more than 0.8% total harmonic distortion.

0.8% total harmonic distortion.

Load Impedance 4 Ω(4 Ωto 8 Ωallowance)

Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.4 kHz, 6 kHz,

12 kHz

Level ±10 dB

Signal-to-Noise Ratio 70 dB

Audio output level

Analog (2nd AUDIO OUT) 6 mW (at 16 Ω)

Digital (DIGITAL OUT: Optical) Signal wave length: 660 nm Output level -21 dBm to -15 dBm

Line-Out Level/Impedance 2.0 V/20 kΩload (full scale)

Output Impedance 1 kΩ

Color system NTSC

Video output (composite) 1 Vp-p/75 Ω

TUNER SECTION Frequency Range FM 87.5 MHz to 108.0 MHz

AM (MW) 522 kHz to 1620 kHz

(LW) 144 kHz to 279 kHz

[FM Tuner] Usable Sensitivity 11.3 dBf (1.0 µV/75 Ω)

50 dB Quieting Sensitivity 16.3 dBf (1.8 µV/75 Ω)

Alternate Channel

Selectivity (400 kHz) 65 dB

Frequency Response 40 Hz to 15000 Hz

Stereo Separation 35 dB

Capture Ratio 1.5 dB

[AM Tuner] Sensitivity 20 µV

Selectivity 35 dB

DVD/CD PLAYER

SECTION Signal Detection System Non-contact optical pickup (semiconductor laser)

Number of channels 2 channels (stereo)

Frequency Response DVD, fs=48 kHz 16 Hz to 22000 Hz

DVD, fs=96 kHz 16 Hz to 44000 Hz

VCD, CD, MP3 16 Hz to 20000 Hz

Dynamic Range 96 dB

Signal-to-Noise Ratio 98 dB

Wow and Flutter Less than measurable limit

MP3 recording format MPEG 1/2 Audio Layer 3

Max. Bit rate 320 Kbps

GENERAL Power Requirement Operating Voltage: DC 14.4 V (11 V to 16 V allowance)

Grounding System Negative ground

Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)

Dimensions (W ×H ×D) Installation Size (approx.) 182 mm ×52 mm ×158 mm

(7-3/16" ×2-1/16" ×6-1/4")

Panel Size (approx.) 188 mm ×58 mm ×12 mm

(7-7/16" ×2-5/16" ×1/2")

Mass (approx.) 1.7 kg (3.8 lbs) (excluding accessories)

(No.49879)1-3

SECTION 1

PRECAUTION

1.1 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.

1-4 (No.49879)

1.2 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.

Be careful to use proper grounding in the area where repairs are being performed.

(1) Ground the workbench

Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the

traverse unit (optical pickup) on it.

(2) Ground yourself

Use an anti-static wrist strap to release any static electricity built up in your body.

(3) Handling the optical pickup

• In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical

pickup are shorted. After replacement, return the shorted parts to their original condition.

(Refer to the text.)

• Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily

destroy the laser diode.

1.3 Handling the traverse unit (optical pickup)

(1) Before disconnecting the flexible wire from the connector CN10 on the front end board, solder the short-circuit point on the flex-

ible wire.

Caution:

If you do not follow this instruction, the DVD pickup may be damaged.

(2) Disconnect the flexible wire from the connector CN10 on the front end board.

(3) Remove the solders from the short-circuit point on the flexible wire after replacing the DVD pickup.

(4) Connect the flexible wire to the connector CN10 on the front end board.

(caption)

Anti-static wrist strap

Conductive material

(conductive sheet) or iron plate

Front end board

CN10

Flexible wire

Short-circuit point

(No.49879)1-5

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

1-6 (No.49879)

SECTION 3

DISASSEMBLY

3.1 Main body section

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.

Fig.1

3.1.2 Removing the bottom cover

(See Fig.2)

• Prior to performing the following procedures, remove the front

panel assembly as required.

(1) Turn over the main body and remove the two screws Aat-

taching the bottom cover.

(2) Release the two joints a, two joints band joint c.

Caution:

Do not damage the main board when releasing the joints using

a screwdriver or a similar tool.

Fig.2

Front panel assembly

Detach button

Bottom cover

Joint b

Joint a

Joint c

A A

(No.49879)1-7

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.

(1) From the both sides of the main body, remove the two

screws Battaching the front chassis assembly. (See

Fig.3.)

(2) From the front side of the main body, remove the two

screws Cattaching the front chassis assembly. (See

Fig.4.)

(3) From the both sides of the main body, release the two joints

dand two joints e. (See Fig.3.) Fig.3

Fig.4

3.1.4 Removing the heat sink

(See Fig.5)

• Prior to performing the following procedure, remove the front

panel and front chassis assemblies as required.

(1) From the left side of the main body, remove the two screws

Dand three screws Eattaching the heat sink.

Fig.5

3.1.5 Removing the rear bracket

(See Fig.6)

• Prior to performing the following procedures, remove the bot-

tom cover.

(1) From the back side of the main body, remove the three

screws F, five screws G, two screws H, screw J, screw K

and screw Lattaching the rear bracket.

(2) Remove the rear bracket.

Note:

When attaching the screws Kand L, attach the AV cable and

antenna cable holders with them.

Fig.6

Joint d

Front chassis assembly

Joint e

Front chassis assembly

EHeat sink

Rear bracket

JHG

Antenna

cable

holder

AV cable holder

1-8 (No.49879)

3.1.6 Removing the main board

(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 Mattaching the main board.

(2) Disconnect the connectors CN781 and CN782 on the main

board from the DVD mechanism assembly.

Reference:

Remove the fan unit as required.

(Disconnect the fan unit wire from the connector CN531 on the

main board and remove the fan unit.)

Fig.7

3.1.7 Removing the DVD mechanism assembly

(See Fig.8)

• Prior to performing the following procedure, remove the front

panel assembly, bottom cover, front chassis assembly, heat

sink, rear bracket and main board.

(1) From the inside of the top chassis, remove the three

screws Nattaching the DVD mechanism assembly.

Fig.8

CN782

CN781

Fan unit

CN531

Main board

DVD mechanism assembly

Top chassis

(No.49879)1-9

3.1.8 Removing the back end board

(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 Pattaching the heat sink (MECHA).

(See Fig.9.)

(2) Remove the two screws Qattaching the shield. (See

Fig.9.)

(3) Remove the shield and heat sink (MECHA) from the DVD

mechanism assembly.

(4) Remove the two screws Rattaching the heat sink (P). (See

Fig.10.)

(5) Release the two joints f and then release the two joints g.

(See Fig.10.)

(6) Disconnect the card wire from the connector CN506 on the

back end board. (See Fig.10.)

(7) Remove the four screws Sand screw S’ attaching the back

end board. (See Fig.10.)

(8) Release the three joints hand then take out the back end

board from the DVD mechanism assembly. (See Fig.11.)

Reference:

When attaching the screw S’, attach the earth wire with it. (See

Fig.11.)

Fig.9

Fig.10

Fig.11

DVD mechanism assembly Shield

Heat sink(MECHA)

Heat sink(P)

Back end board

Card wire

CN506

Joint f

Joints g

Fig.11

Back end board

DVD mechanism assembly

Earth wire

Joint hJoint h

Joint h

1-10 (No.49879)

3.1.9 Removing the front board

(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 Tattaching the rear cover. (See Fig.12.)

(2) Release the ten joints iattaching the rear cover to the front

panel assembly. (See Fig.13.)

(3) Take out the front board from the front panel assembly.

(See Fig.14.)

Note:

Do not lose the springs when removing the front board. Fig.12

Fig.13

Fig.14

Rear cover

Front panel assembly

Joints i

Rear cover

Joint iJoint i

Front board Front panel assembly

Spring Spring

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