JVC XV-N40BK(MK3), XV-N44SL(MK3), XV-N4SL(MK3) Service Manual

XA015200310

SERVICE MANUAL

DVD VIDEO PLAYER

XV-N40BK(MK3),

XV-N44SL(MK3),

XV-N4SL(MK3)

Area Suffix

(XV-N40BK,XV-N44SL)

J -------------------------- U.S.A. C --------------------- Canada

Area Suffix (XV-N4SL)

STANDBY/ON

OPEN/

DISPLAY

010 +10

TITLE/

CANCEL

GROUPRETURN

ENTER

NEXTPREVIOUS

SELECTCLEAR

SLOW

PHONIC

SUB TITLE

ANGLE

VIDEO

SLOW+

VFP

REPEAT

PROGRESSIVE

SCAN

ZOOM

AUDIO

DIMMER

C --------------------- Canada

This illustration is XV-N40BK for U.S.A

This service manual is a service manual of the model which changes a part of specification of the above-mentioned model which has already been put on the market. Please refer to the following page for details.

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 SPECIFIC SERVICE INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-22

No.XA015

2003/10

For this service manual

This service manual is a service manual of the model which changes a part of specificatio n of the abov e-mentioned m odel which has already been put on the market.

The specification is different from what the label of the same model does not paste because of the specification improvement, and refer to this service manual, please. Please already refer to the issued service manual when the label is not pasted.

* Please refer to this service manual for the model to which this label is pasted. * Please refer to the service manual which has already been issued for the model to which this label is not pasted. (one that there is no description named [MK3] in cover of service manual. )

GN30080-002A

Used only service dealer

Please refer to service manual of an applicable model MK3

The already published service manual ISSUE No.A0040 2003/3 XV-N40BK, XV-N44SL ISSUE No.A0045 2003/4 XV-N4SL ISSUE No.XA003 2003/5 XV-N40BK(MK2), XV-N44SL(MK2),XV-N4SL(MK2)

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SPECIFICATION

General

Readable discs DVD VIDEO, DVD-R (Video format), DVDRW (Video format), +RW (Video format), SVCD, Video CD,

Audio CD (CD-DA), MP3 format, JPEG, CD-R/RW (CD-DA, SVCD, Video CD, MP3 format, JPEG)

Video format NTSC, 480i (Interlaced scan)/480p (Progressive scan) selectable

Other

Power requirements AC 120 V, 60 Hz Power consumption 10 W (POWER ON) 0.7 W (STANDBY mode) Mass 2.1 kg (4.7 lbs) Dimensions (W x H x D) 435mm x 53mm x 248.4mm (17-3/16 inch x 2-1/8 inc x 9-13/16 inch)

Video outputs

COMPONENT (pin jacks) Y Output: 1.0 Vp-p (75 Ω)

Pb/Pr Output: 0.7Vp-p (75 Ω) VIDEO OUT (pin jack) 1.0 Vp-p (75 Ω) S-VIDEO OUT (S jack) Y Output: 1.0 Vp-p (75 Ω)

C Output: 286 mVp-p (75 Ω) Horizontal resolution 500 lines or more

Audio outputs

ANALOG OUT (pin jack) 2.0 Vrms (10 kΩ) DIGITAL OUT (COAXIAL) 0.5 Vp-p (75 Ω termination) DIGITAL OUT (OPTICAL) -21 dBm to -15 dBm (peak)

Audio characteristics

Frequency response CD (sampling frequency 44.1 kHz):2 Hz to 20 kHz

DVD (sampling frequency 48 kHz):2 Hz to 22 kHz

(4 Hz to 20 kHz for DTS and Dolby Digital bitstream signals)

DVD (sampling frequency 96 kHz):2 Hz to 44 kHz Dynamic range 16 bit: More than 98 dB

20 bit: More than 100 dB

24 bit: More than 100 dB Wow and flutter Unmeasurable (less than + 0.002%) Total harmonic distortion less than 0.006%

• Specifications and appearance are subject to change without prior notice.

• Manufactured under license from Dolby Laboratories. "Dolby" and the double-D symbol are trademarkes of Dolby Laboratories.

• Manufactured under license from Digital Theater Systems, Inc. "DTS" and "DTS Digital Surround" are registered trademarks of Digital Theater Systems, Inc.

Digital output signal chart

Disc type Output

PCM ONLY DOLBY DIGITAL/PCM STREAM/PCM

DVD with 48/44.1 kHz, 16/20/24 bit linear PCM

DVD with 96 kHz, 16/22/24 bit linear PCM

DVD with DTS No output DTS bitstream DVD with Dolby Digital 48 kHz, 16 bit, stereo linear PCM Dolby Digital bitstream DVD with MPEG

Multichannel SVCD/Video CD/Audio CD 44.1 kHz, 16 bit, stereo linear PCM Audio CD with DTS No output DTS bitstream CD-R/RW with MP3 Linear PCM

48 kHz, 16 bit, stereo linear PCM MPEG bitstream

48/44.1 kHz, 16 bit, stereo linear PCM

48kHz, 16 bit, stereo linear PCM (Down sampling)

(No.XA015)1-3

SECTION 1

Good earth ground

AC VOLTMETER

PRECAUTION

1.1 Safety Precautions

(1) This design of this product contains special hardware and

many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.

(2) Alterations of the design or circuitry of the product should

not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.

(3) Many electrical and mechanical parts in the products have

special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.

(4) The leads in the products are routed and dressed with ties,

clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the origin al lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassembling.

(5) Leakage shock hazard testing

After reassembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check.

• Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).

• Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000Ω per volt or more sensitivity in the following manner. Connect a 1,500Ω 10W resistor paralleled by a 0.15µF AC-type capacitor between an exposed metal part and a known good earth ground. Measure the AC voltage across the resistor with the AC

1-4 (No.XA015)

voltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5µ mA AC (r.m.s.).

(Having 1000 ohms/volts, or more sensitivity)

0.15 F AC TYPE

Place this probe on

1500 10W

1.2 Warning

(1) This equipment has been designed and manufactured to

meet international safety standards.

(2) It is the legal responsibility of the repairer to ensure that

these safety standards are maintained.

(3) Repairs must be made in accordance with the relevant

safety standards.

(4) It is essential that safety critical components are replaced

by approved parts.

(5) If mains voltage selector is provided, check setting for local

voltage.

1.3 Caution 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.

1.4 Critical parts for safety

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version)

each expose metal part.

1.5 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.

1.5.1 Grounding to prevent damage by static electricity

Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players. 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 conducti ve 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 insta llation, both sides of the lase r diode on the replacement o ptical 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.

1.6 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) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.7 Precautions of the safe use of battery (Only XV-N4SL)

• Store the battery in a place where children cannot reach.If a child accidentally swa llows the battery, consult a doctorimmediately.

• Do not recharge, short, disassemble or heat the battery or dispose of it in a fire. Doing any of these things may cause the battery to give of f heat, crack, or start a fire.

• Do not leave the battery with other metallic materials.Doing this may cause the battery to give off heat, crack, or start a fire.

• When throwing away or saving the battery, wrap it in tape and insulate; otherwise, the battery may start to give off heat, crack, or start a fire.

• Do not poke the battery with tweezers or similar tools.Doing this may cause the battery to give off heat, crack, or start a fire.

• Dispose of batteries in the proper manner, according to federal, state, and local regulations.

(No.XA015)1-5

1.8 Importance admistering point on the safety

J702

EP953

C966

C965

C964

L953

C963

D957

D956

T901

C908

C906

R901

C907

B234

R910

C904

C918

C905

L901

C902

EP951

P901

L955

C967

L954

D954

D903

D901

B631

C988

C958

D953

D955

R912

D902 C914

R915

C913

IC901

FC901

L951

C952

D951

R903

D904

R906

C955

B141

D952

PC901

R913

R954

C950

C970

CP951

B137

IC952

B34

Q951

R953

R951

B116

B135

B303

B37

B133

B134

C701

B38

B39

B132

B40

B202

B205

B231

B233

B105

C802

C808

B45

B107

FC902

L710

L709

L952

B331

C953

R969

C951

B236

B403

B136

B271

B347

D701

X701

C706

B142

B143

B170

B203

B102

B16

K811

C959

B140

B852

B871

B874

B872

B166

B237

EP952

CN904

B36

B103

B101

D702

K814

K812

CN901

K813

K810

S901

B273

B873

B772

B771

C973

C957

B601

Q953

B32

B601

B332

R966

B272

B139

B138

B532

C977

L959

S902

C975

C976

L957

B15

B533

L956

B276

B333

C974

CN902

Full Fuse Replacement Marking

Graphic symbol mark (This symbol means fast blow type fuse.)

should be read as follows ;

FUSE CAUTION

FOR CONTINUED PROTECTION AGAINST RISK OF FIRE, REPLACE ONLY WITH SAME TYPE AND RATING OF FUSES ;

F901 : 1.6 A / 125 V F901 : 1.6 A / 125 V

Marquage Pour Le Remplacement Complet De Fusible

Le symbole graphique (Ce symbole signifie fusible de type a fusion rapide.)

doit etre interprete comme suit ;

PRECAUTIONS SUR LES FUSIBLES

POUR UNE PROTECTION CONTINUE CONTRE DES RISQUES D'INCENDIE, REMPLACER SEULEMENT PAR UN FUSIBLE DU MEME TYPE ;

1-6 (No.XA015)

1.9 Precautions for Service

1.9.1 Handling of Traverse Unit and Laser Pickup

(1) Do not touch any peripheral element of the pickup or the actuator. (2) The traverse unit and the pickup are precision devices and therefore must not be subjected to strong shock. (3) Do not use a tester to examine the laser diode. (The diode can easily be destroyed by the internal power supply of the tester.) (4) To replace the traverse unit, pull out the metal short pin for protection from charging. (5) When replacing the pickup, after mounting a new pickup, remove the solder on the short land which is provided at the center of

the flexible wire to open the circuit.

(6) Half-fixed resistors for laser power adjustment are adjusted in pairs at shipment to match the characteristics of the optical block.

Do not change the setting of these half-fixed resistors for laser power adjustment.

1.9.2 Destruction of Traverse Unit and Laser Pickup by Static Electricity

Laser diodes are easily destroyed by static electricity charged on clothingor the human body. Before repairing peripheral elements of the traverse unit or pickup, be sure to take the following electrostatic protection:

(1) Wear an antistatic wrist wrap. (2) With a conductive sheet or a steel plate on the workbench on which the traverse unit or the pick up is to be repaired, ground the

sheet or the plate. (3) It solders to two short circuit sections on the substrate of a pick-up. (4) After removing the flexible wire from the connector (CN101 (5) Short-circuit the laser diode by soldering the land which is provided at the center of the flexible wire for the pickup.

After completing the repair, remove the solder to open the circuit.

), short-circuit the flexible wire by the metal clip.

Pick-up

Short circuit

* Please refer to the disassembly method for details.

CN101

Servo control board

(No.XA015)1-7

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

1-8 (No.XA015)

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