JVC XV-N30BK[MK2], XV-N33SL[MK2] service manual

SERVICE MANUAL

DVD VIDEO PLAYER

XA00220035

XV-N30BK[MK2],

XV-N33SL[MK2]

Area Suffix

J -------------------------- U.S.A. C --------------------- Canada B -------------------------- U.K. E ------ Continental Europe EN ------- Northern Europe EV --------- Eastern Europe

DISPLAY

TITLE/

3D PHONIC

GROUP RETURN CANCEL

213

010 +10

ANGLE

SUB TITLE AUDIO ZOOM

TOP MENU MENU

CHOICE

SLOW

PREVIOUS SELECT

CLEAR

STANDBY/ON

ENTER

VFP ON SCREEN

For only Europe

EE ---- Russian Federation

This illustration is XV-N30BK 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 Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

2 Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

3 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-16

4 Description of major ICs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-25

No.XA002

2003/5

For this service manual

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.

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 [MK2] in cover of service manual. )

0478

The surface of a rear panel

inside

Used only service dealer

Please refer to service manual of an applicable model [MK2]

GN30080-001A

1-2 (No.XA002)

SPECIFICATION

(For U.S.A.)

General

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

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

Video format NTSC

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 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

Audio outputs

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)

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.

(No.XA002)1-3

SECTION 1

Important Safety Precautions

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 original 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, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 ohm 10W resistor paralleled by a 0.15 F AC-type capacitor between 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 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. (Except the JC version)

1-4 (No.XA002)

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.

1.7 Precautions of the safe use of battery (Only XV-N30BK for U.S.A.)

• Store the battery in a place where children cannot reach.If a child accidentally swallows 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 off 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.XA002)1-5

1.8 Importance admistering point on the safety

J702

EP953

C966

C965

L954

L953

C963

D957

D956

T901

C908

R901

C906

C907

B234

R910

C904

C918

C905

L901

C902

EP951

P901

L955

C988

C967

C964

D954

D903

D901

B631

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

B133

B134

B37

C701

B38

B39

B132

B40

B202

B231

B233

B105

C808

C802

B45

FC902

L710

L709

L952

B331

C953

R969

C951

B236

B136

B271

B347

D701

X701

C706

B201

B142

B143

B170

B203

B102

B16

C959

B140

B852

B871

B874

B872

B166

B403

B237

EP952

CN904

B36

B103

B101

B171

B44

P704

D702

B41

CN901

S901

B273

B873

C973

B601

Q953

B32

R966

B272

B139

B138

B17

B772

B771

C957

B332

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.XA002)

1.9 Important for laser products

(1) CLASS 1 LASER PRODUCT (2) DANGER : Invisible laser radiation when open and inter

lock failed or defeated. Avoid direct exposure to beam.

(3) CAUTION : There are no serviceable parts inside the

Laser Unit. Do not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions.

(4) CAUTION : The compact disc player uses 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 de feated. It is dangerous to defeat the safety switches.

VARNING

Osynlig laserstrålning är denna del är öppnad och spårren är urkopplad. Betrakta ej strålen.

VARO

Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle. Älä katso säteeseen.

ADVARSEL

Usynlig laserstråling ved åbning, når sikkerhedsafbrydere er ude af funktion. Undgå udsasttelse for stråling.

ADVARSEL

Usynlig laserstråling ved åpning, når sikkerhetsbryteren er avslott. unngå utsettelse for stråling.

REPRODUCTION AND POSITION OF LABEL and PRINT

WARNING LABEL and PRINT

(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 herein may result in hazardous radiation exposure.

CAUTION Please use enough caution not to see the beam directly or touch it in case of anadjustment or operation check.

The inside of a rear panel

PCM/STRE

COAXIAL

LEFT

VIDEO

S-VIDEO

EO O

RIGHT

DIG

COM

SIGNAL

VIDEO

SELECT

COMPU LINK

(No.XA002)1-7

1.10 Precautions for Service

1.10.1 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.

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

Pick-up

Short circuit

* Please refer to the disassembly method for details.

CN101

Servo control board

1-8 (No.XA002)

SECTION 2

TOP COVER

Push

Disassembly method

There is a part different from the photograph according to the model and the destination though explains this disassembly method by using XV-N30BK for U.S.A.

2.1 Main body section

2.1.1 Removing the top cover (See Figure 1)

(1) Remove the two screws A attaching the top cover on both

sides of the main body.

(2) Remove the three screws B attaching the top cover on the

back of the main body.

(3) Raise the both sides and lower part of the rear of the top

cover, with opening them slightly in an outward direction. And the top cover will be removed.

2.1.2 Removing the front panel assembly (See Figure 2, Figure 3, Figure 4)

• Prior to performing the following procedure, remove the top cover.

• There is no need to remove the mechanism assembly. (1) Insert a kind of screwdriver in a hole located in the right

side of mechanism assembly, and push a lever until it cannot be inserted any further.

(2) And then, a tray will come out. Remove the tray in an upper

direction, with slightly opening the lower part of fitting in an outward direction.

(3) Disconnect the card wire from connector CN901 on the

power supply board.

(4) Hook a and b are removed respectively, and the front panel

assembly is removed.

Fitting

Push

TOP COVER

Fig.1

Tray

Front panel assembly

Mechanism assembly

Hole and leve

Fig.2

Front panel assembly

Power supply board

Fig.3

Hook b

Front panel assembly

Hook b

Hook a

Fig.4

CN901

Hook a

(No.XA002)1-9

2.1.3 Removing the mechanism assembly (See Figure 2, Figure 5)

• Prior to performing the following procedure, remove the top cover.

• There is no need to remove the front panel assembly. (1) Insert a kind of screwdriver in a hole located in the right

side of mechanism assembly, and push a lever until it cannot be inserted any further.

(2) And then, a tray will come out. Remove the tray in an upper

direction, with slightly opening the lower part of fitting in an outward direction.

(3) Remove the three screws C attaching the mechanism as-

sembly.

(4) Disconnect the wire from connector CN501,CN502,CN503

on the servo control board respectively.

(5) Remove the mechanism assembly by lifting the rear part of

the mechanism assembly.

2.1.4 Removing the servo control board (See Figure 6, Figure 7)

• Prior to performing the following procedure, remove the mechanism assembly. (1) A tray is made to slide ahead. (2) A gear 1 is turned counterclockwise. Then, a pick-up unit

moves back. (3) It solders to two c sections on the pick-up unit. (4) Remove the three screws D attaching the servo control

board. (5) Disconnect the card wire from connector CN201,CN202 on

the servo control board. (6) Disconnect the flexible wire from connector CN101 on the

servo control board from pick-up unit.

ATTENTION:

Please extract the wire after short-circuited of two places on the wire in part c with solder. Please remove the solder two places of part c after connecting the wire with CN101 when reassembling.

CAUTION:

Be sure to solder the short land sections “c” on the pickup unit before disconnecting the card wire from connector CN101 on the DVD servo control board. If the card wire is disconnected without attaching solder, the pick-up unit may be destroyed by static electricity.

CN502 CN503

Gear1

Pick-up

Mechanism assembly

CN501

Fig.5

Fig.6

Part c

1-10 (No.XA002)

CN202

CN201

CN101

Servo control board

Fig.7

2.1.5 Removing the rear panel (See Figure 8, Figure 9)

• Prior to performing the following procedure, remove the top cover. (1) Remove the five screws E attaching the rear panel. (2) Disconnect the power cord from connector P901 on the

power supply board

(3) Remove tie band.

Rear panel

Fig.8

G G

CN702

2.1.6 Removing the output terminal board and power supply board. (See Figure 9)

• Prior to performing the following procedure, remove the top cover/mechanism assembly/rear panel. (1) Remove the two screws G attaching the output terminal

board.

(2) Disconnect the card wire from connector CN702 on the

output terminal board.

(3) Remove the three screws H attaching the power supply

board.

(4) Disconnect the card wire from connector CN901 on the

power supply board.

CN901 P901

Power supply boardOutput terminal board

Fig.9

Tie band

Power cord

(No.XA002)1-11

2.2 Loading mechanism assembly

Projection of the tray

2.2.1 Removing the tray (See Figure 1, Figure 2, Figure 3, Figure 4, Figure 5, Figure 6)

(1) Push a of the slide cam on the hole in the right side of the

loading base by using a driver until it stops. (See Figure 1.)

(2) The tray comes out. Pull the tray in a front direction until it

stops.

(3) Remove the two screws A attaching the slide bracket. (See

Figure 2.)

(4) Tilt the tray in a direction of the arrow around the point in

the left rear part of the tray. (See Figure 3.)

(5) The rail of the tray is removed from b of the loading base.

Then, remove the tray upward. (See Figure 4.)

Attaching the tray:

Engage c of the loading base to the projection of the tray while tilting the tray to the left. Turn the tray in a direction of the arrow, and attach the slide bracket. (See Figure 5.)

Note:

Prior to the procedure above, move the slide cam in a direction of the arrow so that d of the slide cam can be inserted in e of the tray. (See Figure 6.)

Tray

The point in the left rear part

Tray

Fig.3

Push

Slide cam part a

Slide bracket

Fig.1

Fig.2

Loading base

Tray

Loading base part b

Rail of the tray

Fig.4

Projection of the tray

Loading base part c

Fig.5

Part e

1-12 (No.XA002)

Part d

Slide cam

Fig.6

2.2.2 Removing the traverse mechanism assembly (See Figure 7)

Shaft

Reverse the loading mechanism assembly. Remove the four screws B attaching the traverse mechanism assembly. Remove the traverse mechanism assembly upward.

Loading mechanism assembly

2.2.3 Removing the elevator (See Figure 8 and Figure 9)

• Prior to the following procedure, remove the traverse mechanism assembly. (1) Remove the two arms of the elevator from the two parts f

by moving the arms in a direction of the arrow.

(2) Pull out the elevator in a rear direction.

Attaching the elevator:

Engage the two holes g to the two shafts on the front part of the elevator. And then, attach the elevator.

Traverse mechanism assembly

Fig.7

Elevator

Part f

Fig.8

Slide cam

Elevator

Shaft

Fig.9

(No.XA002)1-13

Part

2.2.4 Removing the loading motor (See Figure 10 and Figure 11)

• Prior to the following procedure, remove the tray, the traverse mechanism assembly, and the elevator. (1) Remove the belt from the pulley. (2) Remove two screws C attaching the loading motor. (3) Remove two solders h on the switch board.

Pulley

Belt

Fig.10

Pulley

Loading base

Slide cam

Switch board

Loading motor

Part h

Fig.11

1-14 (No.XA002)

2.3 Traverse mechanism assembly

2.3.1 Removing the pickup (See Figure 12, Figure 13)

• Prior to the following procedure, remove the traverse mechanism assembly. (1) Remove one screw D attaching the plate. (2) Remove the plate and the leaf spring. (3) Lift i of the shaft 1, and pull out the shaft 1 from j. (4) Remove k of the pickup from the shaft 2.

Attaching the pickup:

(1) Engage k of the pickup to the shaft 2. (2) Insert the shaft 1 in j, and attach the shaft 1 to i. (3) Attach the leaf spring, and then attach the plate. Fix the

leaf spring and the plate by using the screw D.

Leaf spring

Plate

Fig.12

Part j

Shaft 2

Part k

Shaft 1

Part i

Fig.13

(No.XA002)1-15

+ 33 hidden pages