JVC KD-AVX11 Service Manual

MA30420073SERVICE MANUALEXAD

SERVICE MANUAL

DVD/CD RECEIVER

KD-AVX11J,KD-AVX11E,

KD-AVX11EU,KD-AVX11EE,

KD-AVX11U,KD-AVX11UN,

KD-AVX11UT,KD-AVX11A

for Europefor Northern America

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)

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-10

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-37

No.MA304

2007/3

SPECIFICATION

For Northern America

AMPLIFIER

Power Output 20 W RMS × 4 Channels at 4 Ω and [< or =] 1% THD+N Signal-to-Noise Ratio 70 dB (reference: 1 W into 4 Ω) Load Impedance 4 Ω (4 Ω to 8 Ω allowance)

Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz

Level ±10 dB

Audio Output Level LINE OUT(FRONT/REAR)/ SUBWOOFER

Color System NTSC

Video Output (composite) 1 Vp-p/75 Ω

Other Terminals Input LINE IN, VIDEO IN, Antenna input

Frequency Range FM (with channel interval set to 100 kHz or 200 kHz) 87.5 MHz to 107.9 MHz

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

AM Tuner Sensitivity/Selectivity 20 µV/35 dB

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

Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz

Dynamic Range 93 dB

Signal-to-Noise Ratio 95 dB

Wow and Flutter Less than measurable limit

Screen Size 2.7 inch wide liquid crystal display

Number of Pixel 123 200 pixels: 560 (horizontal) × 220 (vertical)

Drive Method TFT (Thin Film Transistor) active matrix format

Color System PAL/NTSC

Aspect Ratio 16:9 (wide)

Allowable Storage Temperature -10°C to +60°C (14°F to 140°F) Allowable Operating Temperature 0°C to +40°C (32°F to 104°F)

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 × 160 mm (7-3/16" × 2-1/16" × 6-5/16")

Mass (approx.) 2.1 kg (4.7 lbs) (excluding accessories)

Design and specifications are subject to change without notice.

Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ

Output VIDEO OUT, DIGITAL OUT (optical)

Others CD changer, OE REMOTE

FM/AM TUNER

FM (with channel interval set to 50 kHz) 87.5 MHz to 108.0 MHz

AM (with channel interval set to 10 kHz) 530 kHz to 1 710 kHz

AM (with channel interval set to 9 kHz) 531 kHz to 1 602 kHz

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

Alternate Channel Selectivity (400 kHz) 65 dB

Frequency Response 40 Hz to 15 000 Hz

Stereo Separation 35 dB

DVD/CD

DVD, fs=96 kHz 16 Hz to 22 000 Hz

VCD/CD 16 Hz to 20 000 Hz

MONITOR

GENERAL

Panel Size (approx.) 188 mm × 58 mm × 14 mm (7-7/16" × 2-5/16" × 5/8")

1-2 (No.MA304)

For Europe

AMPLIFIER

Maximum Power Output Front/Rear 50 W per channel

Continuous Power Output (RMS) Front/Rear 20 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more

than 0.8% total harmonic distortion

Load Impedance 4 Ω (4 Ω to 8 Ω allowance)

Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz

Level ±10 dB

Signal-to-Noise Ratio 70 dB

Audio Output Level LINE OUT(FRONT/REAR)/ SUBWOOFER

Color System PAL

Video Output (composite) 1 Vp-p/75 Ω

Other Terminals Input LINE IN, VIDEO IN, Aerial input

Frequency Range FM 87.5 MHz to 108.0 MHz

FM Tuner Usable Sensitivity (LW) 144 kHz to 279 kHz

MW Tuner Sensitivity/Selectivity 35 dB

LW Tuner Sensitivity 20 µV/35 dB

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

Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz

Dynamic Range 93 dB

Signal-to-Noise Ratio 95 dB

Wow and Flutter Less than measurable limit

Screen Size 2.7 inch wide liquid crystal display

Number of Pixel 123 200 pixels: 560 (horizontal) × 220 (vertical)

Drive Method TFT (Thin Film Transistor) active matrix format

Color System PAL/NTSC

Aspect Ratio 16:9 (wide)

Allowable Storage Temperature -10°C to +60°C Allowable Operating Temperature 0°C to +40°C

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 Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm

Mass (approx.) 2.1 kg (excluding accessories)

Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ

Output VIDEO OUT, DIGITAL OUT (optical)

Others CD changer, OE REMOTE

FM/AM TUNER

AM (MW) 522 kHz to 1 620 kHz

50 dB Quieting Sensitivity 11.3 dBf (1.0 µV/75 Ω) Alternate Channel Selectivity (400 kHz) 16.3 dBf (1.8 µV/75 Ω)

Frequency Response 65 dB

Stereo Separation 40 Hz to 15 000 Hz

DVD/CD

DVD, fs=96 kHz 16 Hz to 22 000 Hz

VCD/CD 16 Hz to 20 000 Hz

MONITOR

GENERAL

Panel Size (approx.) 188 mm × 58 mm × 14 mm

Design and specifications are subject to change without notice.

(No.MA304)1-3

For Eastern Europe

AMPLIFIER

Maximum Power Output Front/Rear 50 W per channel

Continuous Power Output (RMS) Front/Rear 20 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more

than 0.8% total harmonic distortion

Load Impedance 4 Ω (4 Ω to 8 Ω allowance)

Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz

Level ±10 dB

Signal-to-Noise Ratio 70 dB

Audio Output Level LINE OUT(FRONT/REAR)/ SUBWOOFER

Color System PAL

Video Output (composite) 1 Vp-p/75 Ω

Other Terminals Input LINE IN, VIDEO IN, Aerial input

Frequency Range FM 87.5 MHz to 108.0 MHz

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

MW Tuner Sensitivity/Selectivity 20 µV/35 dB LW Tuner Sensitivity 50 µV

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

Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz

Dynamic Range 93 dB

Signal-to-Noise Ratio 95 dB

Wow and Flutter Less than measurable limit

Screen Size 2.7 inch wide liquid crystal display

Number of Pixel 123 200 pixels: 560 (horizontal) × 220 (vertical)

Drive Method TFT (Thin Film Transistor) active matrix format

Color System PAL/NTSC

Aspect Ratio 16:9 (wide)

Allowable Storage Temperature -10°C to +60°C Allowable Operating Temperature 0°C to +40°C

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 Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm

Mass (approx.) 2.1 kg (excluding accessories)

Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ

Output VIDEO OUT, DIGITAL OUT (optical)

Others CD changer, OE REMOTE

FM/AM TUNER

AM (MW) 522 kHz to 1 620 kHz

(LW) 144 kHz to 279 kHz

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

Alternate Channel Selectivity (400 kHz) 65 dB

Frequency Response 40 Hz to 15 000 Hz

Stereo Separation 35 dB

DVD/CD

DVD, fs=96 kHz 16 Hz to 22 000 Hz

VCD/CD 16 Hz to 20 000 Hz

MONITOR

GENERAL

Panel Size (approx.) 188 mm × 58 mm × 14 mm

Design and specifications are subject to change without notice.

1-4 (No.MA304)

For Asia and Australia

AMPLIFIER

Maximum Power Output Front/Rear 50 W per channel

Continuous Power Output Front/Rear 20 W per channel into 4 Ω, 40 Hz to 20 000 Hz at no more

than 0.8% total harmonic distortion.

Load Impedance 4 Ω (4 Ω to 8 Ω allowance)

Equalizer Control Range Frequencies 60 Hz, 150 Hz, 400 Hz, 1 kHz, 2.5 kHz, 6.3 kHz, 15 kHz

Level ±10 dB

Signal-to-Noise Ratio 70 dB

Audio Output Level LINE OUT(FRONT/REAR)/ SUBWOOFER

Color System NTSC/PAL

Video Output (composite) 1 Vp-p/75 Ω

Other Terminals Input LINE IN, VIDEO IN, Antenna input

Frequency Range FM 87.5 MHz to 108.0 MHz

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

AM Tuner Sensitivity/Selectivity 20 µV/35 dB

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

Frequency Response DVD, fs=48 kHz 16 Hz to 22 000 Hz

Dynamic Range 93 dB

Signal-to-Noise Ratio 95 dB

Wow and Flutter Less than measurable limit

Screen Size 2.7 inch wide liquid crystal display

Number of Pixel 123 200 pixels: 560 (horizontal) × 220 (vertical)

Drive Method TFT (Thin Film Transistor) active matrix format

Color System NTSC/PAL

Aspect Ratio 16:9 (wide)

Allowable Storage Temperature -10°C to +60°C Allowable Operating Temperature 0°C to +40°C

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 Dimensions (W × H × D) Installation Size (approx.) 182 mm × 52 mm × 160 mm

Mass (approx.) 2.1 kg (excluding accessories)

Line-Out Level/Impedance 2.5 V/20 kΩ load (full scale) Output Impedance 1 kΩ

Output VIDEO OUT, DIGITAL OUT (optical)

Others: CD changer

FM/AM TUNER

AM 531 kHz to 1 602 kHz

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

Alternate Channel Selectivity (400 kHz) 65 dB

Frequency Response 40 Hz to 15 000 Hz

Stereo Separation 35 dB

DVD/CD

DVD, fs=96 kHz 16 Hz to 22 000 Hz

VCD/CD 16 Hz to 20 000 Hz

MONITOR

GENERAL

Panel Size (approx.) 188 mm × 58 mm × 14 mm

Design and specifications are subject to change without notice.

(No.MA304)1-5

1.1 Safety Precautions

SECTION 1

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.

1-6 (No.MA304)

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 laser products. 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.

(caption) Anti-static wrist strap

Conductive material (conductive sheet) or iron plate

(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) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit. (2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the

replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a

time when attaching it to the connector. (3) Handle the flexible cable carefully as it may break when subjected to strong force. (4) It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.4 Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for the pickup unit.

• Apply solder to the short land before the card wire is disconnected from the connector on the pickup unit. (If the card wire is disconnected without applying solder, the pickup may be destroyed by static electricity.)

• In the assembly, be sure to remove solder from the short land after connecting the card wire.

Flexible wire

CN101

Short-circuit points

Mechanism control board

(No.MA304)1-7

1.5 Important for laser products

1.CLASS 1 LASER PRODUCT

2.CAUTION :

(For U.S.A.) Visible and/or invisible class II laser radiation when open. Do not stare into beam. (Others) Visible and/or invisible class 1M laser radiation when open. Do not view directly with optical instruments.

3.CAUTION : Visible and/or invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam.

4.CAUTION : This laser product uses visible and/or invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or are defeated. It is dangerous to defeat the safety switches.

5.CAUTION : If safety switches malfunction, the laser is able to function.

6.CAUTION : Use of controls, adjustments or performance of procedures other than those specified here in may result in hazardous radiation exposure.

Please use enough caution not to

see the beam directly or touch it

in case of an adjustment or operation

check.

REPRODUCTION AND POSITION OF LABELS and PRINT

WARNING LABEL and PRINT

1-8 (No.MA304)

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

(No.MA304)1-9

SECTION 3

DISASSEMBLY

3.1 Main body

3.1.1 Removing the Side heat sink (Fig.1)

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

A and Two screws B attaching the Side heat sink.

Fig.1

1-10 (No.MA304)

3.1.2 Removing the Top chassis assembly

(See Fig.2 to 6)

(1) From the top side of the main body, remove the one screw

C attaching the Top chassis assembly. (See Fig.2)

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

screws D attaching the Top chassis assembly. (See Fig.3 and 4)

(3) From the bottom side of the main body, remove the two

screws E attaching the Top chassis assembly. (See Fig.5)

(4) From the back side of the main body, remove the four

screws F attaching the Top chassis assembly. (See Fig.6)

(5) Lift the Top chassis assembly in the direction of the arrow.

(See Fig.6)

Fig.2

Fig.3

Fig.4

Fig.5

Fig.6

(No.MA304)1-11

3.1.3 Removing the Front chassis assembly (See Fig.7 and 8)

(1) From the both sides of the Top chassis assembly, remove

the two screws G attaching the Front chassis assembly. (See Fig.7 and 8)

3.1.4 Removing the DVD mechanism assembly (See Fig.9)

(1) From the inside of the Top chassis assembly, remove the

three screws H attaching the DVD mechanism assembly and take out the DVD mechanism assembly.

(2) From the side of the DVD mechanism assembly, remove

the double-stick tape fixing the insulator.

(3) Remove the insulator from the DVD mechanism assembly.

Fig.7

Fig.8

1-12 (No.MA304)

Fig.9

+ 28 hidden pages