JVC XVM5GSL/UJ/UC - Service Manual Immediate Download

SERVICE MANUAL

No.XA008

2003/7

DVD VIDEO PLAYER

XA008

2003

XV-M5GSL

TABLE OF CONTENTS

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

SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7

DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-8

ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-20

TROUBLE SHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-26

Area Suffix

J -------------------- U.S.A.

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

+10

TITLE/

GROUP

TV/VIDEO

CANCEL

RETURN

VOL

VOL+

VFP

ZOOM

AMP

VOL

AUDIO

PHONIC

SUB TITLE

ANGLE

DIMMER

REPEAT

OPEN/

DISC

SELECT

TV1

TV2

TV3

TV4

TV5

TV6

TV7

TV8

TV9

TV-/--

TV0

MUTING

DVD

SELECT

CLEAR

SLOW-

SLOW+

OIC

ENTER

STANDBY/ON

DVD

PROGRESSIVE

SCAN

VIDEO

1-2 (No.XA008)

SPECIFICATION

General

Other

Video outputs

Audio outputs

Audio characteristics

· 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.

· "DTS" and "DTS Digital Out" are trademarks of Digital Theater Systems, Inc.

Digital output signal chart

Readable discs

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

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

JPEG)

Video format

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

Power requirements

AC 120 V, 60 Hz

Power consumption

12 W (POWER ON) 0.8 W (STANDBY mode)

Mass

4.2 kg (9.3 lbs)

Dimensions (W x H x D)

435mm x 83mm x 322mm (17-3/16 inch x 3-5/16 inc x 12-11/16 inch)

COMPONENT (pin jacks)

Y Output: 1.0 Vp-p (75 ohm)

Pb/Pr Output: 0.7Vp-p (75 ohm)

VIDEO OUT (pin jack)

1.0 Vp-p (75 ohm)

S-VIDEO OUT (S jack)

Y Output: 1.0 Vp-p (75 ohm)

C Output: 286 mVp-p (75 ohm)

Horizontal resolution

500 lines or more

ANALOG OUT (pin jack)

2.0 Vrms (10 kohm)

DIGITAL OUT (COAXIAL)

0.5 Vp-p (75 ohm termination)

DIGITAL OUT (OPTICAL)

-21 dBm to -15 dBm (peak)

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%

Disc type

Output

PCM ONLY

DOLBY DIGITAL/PCM

STREAM/PCM

DVD with 48/44.1 kHz,

16/20/24 bit linear PCM

48/44.1 kHz, 16 bit, stereo linear PCM

DVD with 96 kHz,

16/22/24 bit linear PCM

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

DVD with DTS

48kHz, 16bit, stereo linear PCM

DTS bitstream

DVD with Dolby Digital

48 kHz, 16 bit, stereo linear PCM

Dolby Digital bitstream

DVD with MPEG

Multichannel

48kHz, 16 bit, stereo linear PCM

MPEG bitstream

SVCD/Video CD/Audio CD

44.1 kHz, 16 bit, stereo linear PCM

Audio CD with DTS

48kHz, 16bit, stereo linear PCM

DTS bitstream

CD-R/RW with MP3/WMA

Linear PCM

(No.XA008)1-3

SECTION 1

PRECAUTION

1.1

Safety Precautions

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

many circuits and components specially for safety purpos-

es. 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 per-

formed 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 characteris-

tics are often not evident from visual inspection nor can the

protection afforded by them necessarily be obtained by us-

ing replacement components rated for higher voltage, watt-

age, etc. Replacement parts which

have these special

safety characteristics are identified in the Parts List of Ser-

vice 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 charac-

teristics 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 original lead routing

and dress should be observed, and it should be confirmed

that they have been returned to normal, after reassem-

bling.

(5) Leakage shock hazard testing)

After reassembling the product, always perform an isola-

tion check on the exposed metal parts of the product (an-

tenna 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, particular-

ly any exposed metal part having a return path to the

chassis, to a known good earth ground. Any leakage cur-

rent 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, 1,000 ohms per volt or more sensi-

tivity in the following manner. Connect a 1,500 ohm 10W

resistor paralleled by a 0.15 F AC-type capacitor be-

tween an exposed metal part and a known good earth

ground.

Measure the AC voltage across the resistor with the AC

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 0.5

mA AC (r.m.s.).

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 pre-

forming 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. (Except

the JC version)

1-4 (No.XA008)

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 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.

1.6

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.

(No.XA008)1-5

1.7

Importance admistering point on the safety

JT901

JT902

JT903

JT904

B922

EP952

C902

C904

C905

C907

C908

C913

C914

C918

C950

C951

C952

C953

C955

C957

C958

C959

C963

C964

C965

C966

C967

C970

C973

C988

CP951

C916

D901

D902

D903

D951

D952

D953

D954

D955

D956

D957

D960

EP951

FC901

FC902

B910

B920

IC901

IC952

B911

B912

L901

L951

L952

L953

L954

L955

P901

PC901

B913

B914

B902

B907

Q951

Q953

B909

B906

B908

B921

B918

B919

WC901

B915

B916

B917

B923

B926

B927

B925

B924

R901

R903

R906

R910

R912

R913

R915

R951

R954

T901

EP910

D904

B903

B904

B905

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

Marquage Pour Le Remplacement

Complet De Fusible

PRECAUTIONS SUR LES FUSIBLES

POUR UNE PROTECTION CONTINUE CONTRE

DES RISQUES D'INCENDIE, REMPLACER

SEULEMENT PAR UN FUSIBLE DU MEME TYPE ;

Le symbole graphique (Ce symbole signifie

fusible de type a fusion rapide.)

doit etre interprete comme suit ;