JVC XDV-9000 Service manual

SERVICE MANUAL

DVD AUDIO/VIDEO PLAYER

XV-D9000

Area Suffix

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

XV-D9000

Contents

Safety precautions ------------------------ 1-2 Preventing static electricity ------------- 1-3 Dismantling and assembling the traverse unit ----- 1-4 Important for laser products ------------ 1-5

Importance admistering point on the safety ----- 1-6 Disassembly method -------------------- 1-7 Method of initializing EEPROM and display of jitter value ----- 1-18 Description of major ICs ---------------- 1-19

This service manual is printed on 100% recycled paper.

No.A0004 Mar. 2001

XV-D9000

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 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 current check (Electrical 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 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.

AC VOLTMETER (Having 1000 ohms/volts, or more sensitivity)

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

0.15 F AC TYPE

1500 10W

Place this probe on each exposed metal part.

exceed 0.75 V AC (r.m.s.). This corresponds to 0.5

Good earth ground

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.

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.

1-2

XV-D9000

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.

1.1. 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.

1.1.1. Ground the workbench

1. 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.

1.1.2. Ground yourself

1. 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

1.1.3. Handling the optical pickup

1. 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.)

2. 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.

1.2. 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

1-3

XV-D9000

Dismantling and assembling the traverse unit

1. Notice regarding replacement of optical pickup

(Refer to the section regarding anti-static measures.)

1. Do not touch the area around the laser diode and actuator.

2. Do not check the laser diode using a tester, as the diode may easily be destroyed.

3. It is recommended that you use a grounded soldering iron when shorting or removing the laser diode. Recommended soldering iron: HAKKO ESD-compatible product

4. Solder the land on the optical pickup's flexible cable. Note : Short the land after shorting the terminal on the flexible cable using a clip, etc., when using an ungrounded soldering iron. Note : After shorting the laser diode according to the procedure above, remove the solder according to the text explanation.

Short circuit land

Laser pick-up unit

Flexible cable

Shorting

Shot with the clip

1-4

Important for Laser Products

XV-D9000

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.

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.

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

WARNING LABEL

1-5

XV-D9000

Importance Admistering point on the Safety

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 ;

F9991 : 1.6 A / 250 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 ;

F9991 : 1.6 A / 250 V

1-6

XV-D9000

Disassembly method

Removing the top panel(See Fig.1)

1.Remove the eight screws A by hexagonal driver attaching the top panel.

2.A top panel is lifted up and it is removed.

Removing the side panel(See Fig.1)

1.Remove the four screws B by hexagonal driver attaching the side panel.

2.The left side also similarly removes the side panel.

Removing the front panel assembly (See Fig.1~5)

*Prior to performing the following procedure, remove the top panel.

1.The bottom of the main body is done up.

2.A minus driver is inserted in the incision part at the center of the bottom, the bar in the interior of the incision part is moved in the direction of the arrow of Figure 2, and the tray is drawn out forward.

Fig.1

Bottom plate

Tr ay

Fig.2

Top panel

Side panel

Front panel assembly

Incision part

3.Hook a which connects the tray covers to the tray is removed by a minus driver etc. , the tray cover is pushed downward, and removes.

4.Remove the six screws C attaching the front panel assembly.

5.The top of the main body is done up.

6.Remove the eight screws D attaching the front panel assembly from the upper side of main body.

7.Disconnect the wire from connector CN507 on the main board and CN981 on the power supply board.

8.It comes off when the front panel assembly is drawn out forward.

Power supply board

CN981

CN507

Tray cover

Hook a

Fig.3

Bottom plate

Main board

Fig.5

Front panel assembly

Fig.4

1-7

XV-D9000

Removing the rear cover(See Fig.6~8)

*Prior to performing the following procedure, remove the top panel.

1.Remove the eighteen screws E attaching the rear cover from back of the main body.

2.Remove the three screws F attaching the bottom plate from back of the main body.

3.Solder on the power supply board is removed by three places.(See Fig.8)

4.Remove the two screws G attaching the AC socket and one screw G' attaching the power supply board.

Rear cover

Fig.6

Bottom plate

Removing the main board(See Fig.8)

*Prior to performing the following procedure, remove the top panel.

1.Remove the four screws H attaching the main board.

2.Disconnect the connector from CN101,CN103 CN504,CN505,CN501,CN502,CN503,CN506 CN507 on the main board.

Rear cover

CN103

CN101

CN504

CN505

Fig.7

CN501

CN507

CN509

CN503

CN502

CN506

1-8

Main board

Fig.8

Solder parts

XV-D9000

Removing the DVD mechanism assembly (See Fig.9~11)

*Prior to performing the following procedure, remove the top panel and main board.

1.Remove the four screws I attaching the DVD mechanism assembly cover, and DVD mechanism assembly cover lifted up and it is removed.

2.The bottom of the main body is done up.

3.Remove the four nut J attaching the DVD mechanism assembly

4.The top of the main body is done up.

5.Remove the four screws K attaching the DVD mechanism assembly.

6.It is removed while lifting the DVD mechanism assembly backward while noting the card wire.

DVD Mechanism assembly cover

Fig.9

Fig.10

DVD Mechanism assembly

Fig.11

1-9

XV-D9000

Removing the audio(rear L/R) board (See Fig.12~13)

*Prior to performing the following procedure, remove the top panel and rear cover.

1.Remove the three screws L attaching the audio(rear L/R) board.

2.Remove the four screws M attaching the audio(rear L/R) board from back of the body.

3.Disconnect the card wire from CN761 and connector from CN751 on the audio(rear L/R) board.

4.Disconnect the connector from CN697 on the audio power board.

Removing the audio(front L/R) board (See Fig.14)

CN751

CN761 CN697

Audio-analog (rear L/R)board

Fig.12

Fig.13

*Prior to performing the following procedure, remove the top panel and rear cover.

1.Remove the audio(rear L/R) board(upper step).

2.Remove the two screws N of the pillar which supports audio(rear L/R) board(upper step).

3.Remove the two screws O attaching the audio(front L/R)board(lower step).

4.Disconnect the connector from CN721 and CN722 on the audio signal(front) output terminal.

5.Disconnect the connector from CN695 and CN696 on the DVD audio power board.

6.Disconnect the connector from CN741 on the signal processing board.

Signal processing board

CN741

CN722

CN696

CN721

Audio-analog (front L/R)board

CN695

Fig.14

1-10

XV-D9000

Removing the video signal board(See Fig.15,16)

*Prior to performing the following procedure, remove the top panel and rear cover.

1.Remove the three screws P attaching the video signal board.

2.Remove the five screws Q attaching the video signal board from back of the body.

3.Disconnect the connector from CN502 and CN503 on the main board.

4.Disconnect the connector from CN601 on the video signal board.

Removing the power supply board (See Fig.17,18)

*Prior to performing the following procedure, remove the top panel, rear cover and video signal board.

1.Remove the two screws S attaching the power supply board cover and it is remove.

CN502

Rear cover

CN503

Fig.15

Fig.16

CN601

Video signal board

2.Remove the two screws T of the pillar which supports power supply board cover.

3.Remove the four screws U attaching the power supply board.

4.Disconnect the connector from CN991 on the power supply board.

5.Disconnect the connector from CN501 and CN506 on the main board.

CN506

Fig.17

CN501

Power supply board cover

U T

Power supply board

Fig.18

CN991

1-11

XV-D9000

Removing the signal processing board (See Fig.19)

*Prior to performing the following procedure, remove the top panel.

1.Remove the four screws V attaching the signal processing board.

2.Disconnect the connector from CN711 and CN741 on the signal processing board.

Removing the audio-power supply board (See Fig.20)

*Prior to performing the following procedure, remove the top panel and rear cover.

Signal processing board

CN711

CN741

Fig.19

Audio-power supply board

1.Remove the four screws W attaching the audio power supply board.

2.Disconnect the connector from CN691,CN692,CN695, CN696,CN697 on the audio-power supply board.

3.The solder(PP691 and PP692) of wire connected with power transformer is removed.

Removing the power transformer (See Fig.21)

*Prior to performing the following procedure, remove the top panel.

1.Disconnect the connector from CN691 and CN692 on the audio-power supply board.

2.The solder(PP691 and PP692) of wire connected with power transformer is removed.

CN696

CN697

PP692 PP691

Fig.20

CN691CN695

CN692

3.Remove the four screws X attaching the power transformer from bottom of the body.

<ATTENTION> Please the power transformer must become unstable and put up the main body sideways, and work while supporting the power transformer by one of hands when you remove the screw of the power transformer.

1-12

Fig.21

Removing the operation switch board/ FL and operation switch board(See Fig.22)

1.Remove the front panel assembly.(See Fig.1~5)

2.Remove the ten screws Y attaching the FL and operation switch board.

3.Remove the seven screws Z attaching the operation switch board.

XV-D9000

FL and operation switch board

Fig.22

Operation switch board

1-13

XV-D9000

Removing the clamper base (See Fig.1) * Remove the top cover. * Remove the DVD mechanism unit.

1. Remove the two screws A attaching the clamper base.

Removing the loading tray (See Fig.2~4) * Remove the clamper base.

1. Turn the up-down cam lever clockwise (in the direction of the arrow in Fig.2) to lower the position of the mechanism.

2. Manually set the loading tray to the fully-open position.

3. Stretch the tray stoppers on both sides of the loading base outward and pull out the tray.

Clamper base

Loading tray

Fig.1

Loading tray (front side)

Tray stopper

Loading tray

Loading base

Up-down cam

Lever

Fig.2

Loading base

Loading tray

Push

1-14

Tray stopper

Fig.4

Fig.3

XV-D9000

Removing the traverse mechanism unit (See Fig.5) * Remove the loading tray.

1. Remove the three screws B attaching the traverse mechanism unit.

Protecting the optical pickup * Solder the flexible ground point on the optical pickup when replacing the pickup or before detaching the mechanism control board. When assembling the unit, remove the solder last.

Removing the mechanism control board

(See Fig.6~7) * Remove the traverse unit. (Can be detached without

detaching the T-mechanism unit.)

1. Remove the two screws C attaching the mechanism control base from the bottom of the traverse unit.

2. Pull out the CN12 connector and detach the mechanism control board.

3. Remove the card wire from the CN13 connector on the mechanism control board.

4. Pull out the FPC holder from the CN12 connector on the reverse side of the mechanism control board and remove the flexible harness, referring to Fig.7.

Enlargement

Traverse mechanism unit

Fig.5

Traverse mechanism unit

CN12

CN13

Connection area

(Solder the flexible ground point)

Flexible harness

Enlargement

FPC holder

Fig.7

Mechanism control board

Fig.6

Flexible harness

CN12

Mechanism control board

1-15

XV-D9000

Removing the turntable and spindle motor assembly (See Fig.8~9)

* Remove the traverse mechanism unit. * Solder the flexible ground point on the optical pickup. (See Fig.6)

* Remove the mechanism control board.

1. Remove the flexible harness from the feed motor connector on the spindle motor board assembly.

2. Remove the three screws D attaching the spindle motor from the bottom of the traverse chassis.

Removing the feed motor unit (See Fig.9) * Remove the traverse mechanism unit. * Remove the mechanism control board.

1. Remove the FPC from the feed motor connector on the turntable spindle motor board.

2. Remove the two screws E attaching the feed motor unit.

Removing the optical pickup unit (See Fig.9) * Remove the traverse mechanism unit.

Guide shaft b

* Remove the mechanism control board. * Remove the feed motor unit.

1. Remove the screw F attaching the guide shaft holder at b, then simultaneously remove the guide shaft at B and the

optical pickup unit. While doing so, slide the unit horizontally away from the guide shaft at a.

Traverse chassis

Fig.8

Traverse mechanism unit

Pick-up assembly

Guide shaft a

Feed motor assembly

Flexible harness

Feed motor connector

Turn table/spindle motor unit

Fig.9

1-16

XV-D9000

Removing the loading mechanism parts (See Fig.10~11)

* Remove the clamper base. * Remove the disk tray.

1. Turn the lever counterclockwise until it stops (position 1), while pushing the switch lever in the direction of the arrow and pushing up the pawl at a using a screwdriver.

2. Stretch the two pawls at b outward using a screwdriver and remove the chassis.

3. Turn the lever clockwise (position 2) to remove the up-down cam.

4. Remove the pulley gear and the pulley gear belt after removing the screw G attaching the pulley gear.

5. Pull out drive gear 2 then drive gear 1.

(1)When detaching

Removing the loading motor board

the chassis.

(See Fig.11~12) * Remove the clamper base. * Remove the disk tray.

1. Remove the loading belt.

2. Remove the two screws H attaching the loading motor.

3. Remove the screw at I and the three pawls at c fixing the loading motor base from the reverse side of the loading base.

Up-down

Pawl b

chassis.

cam

Lever

Up-down cam

Fig.10

Loading base

Pawl a

Chassis

Pawl b

Switch lever

(2)When detaching the up-down cam.

Up-down cam

Switch lever

Loading motor unit

Loading base

Loading belt

Loading base

Drive gear 1

Drive gear 2

Pulley gear

Fig.11

Loading motor board

Pawl c

Fig.12

1-17

XV-D9000

Method of initializing EEPROM and display of jitter value

Initializing EEPROM

Please initialize EEPROM when you exchange Microcomputer(IC401,IC402) and optical pick-up by the undermentioned method.

1. It is confirmed that there is no disk in the tray.

2. The power supply plug is inserted while pushing the PLAY key and the OPEN/CLOSE key to the main body.

3. It is displayed in the FL display part as "TEST JC1".

4. The EX K2 key is pushed.

5. The POWER key is pushed if displayed in the FL display part as "EFP****". (**** is a check sum of device key display. )

6.When normally entering the state of the power standby, initialization is normal and completion.

Jitter value (We will separately inform of the method of adjusting jitter.)

1. It is confirmed that there is no disk in the tray.

2. The power supply plug is inserted while pushing the PLAY key and the OPEN/CLOSE key to the main body.

3. It is displayed in the FL display part as "TEST JC1".

4. Press the OPEN/CLOSE key to move the tray outward. Put the test disc (VT-501) on the tray and press OPEN/CLOSE key. The tray should move inward (NOTE:Don't push to close the tray directly by hand etc,)

5.Keeps pushing SETUP key to remote controller for ten seconds or more.

6.Press the PLAY key of the main body.

Remote controller Main body

SETUP key

1-18

POWER/

STANDBY key

EX K2 key FL Display PLAY key

OPEN/CLOSE key

+ 40 hidden pages

JVC XDV-9000 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Preventing static electricity

Dismantling and assembling the traverse unit

Important for Laser Products

Importance Admistering point on the Safety

Disassembly method

Method of initializing EEPROM and display of jitter value