JVC XVFA-90-BK, XVFA-92-SL, XVFA-95-GD Service manual

XV-FA90BK/XV-FA92SL

XV-FA95GD

SERVICE MANUAL

DVD AUDIO/VIDEO PLAYER

XV-FA90BK / XV-FA92SL

XV-FA95GD

Area Suffix (XV-FA90BK)

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

Area Suffix (XV-FA92SL)

Each difference point

Model

XV-FA90BK

XV-FA92SL

XV-FA95GD

< ATTENTION ! > Please pull out the AC plug code after the standby indicator lights pushing the power supply button without fail after completing the repair. The mechanism becomes initialed position. There is a possibility to break when carrying in not initialed position the mechanism but the state.

Body color

Black

Silver

Gold

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

Area Suffix (XV-FA95GD)

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

Contents

Safety precautions ------------------------ 1-2 Preventing static electricity ------------- 1-3 Importance admistering point on the safety ------------ 1-4 Precautions for service ----------------- 1-5

This service manual is printed on 100% recycled paper.

Disassembly method -------------------- 1-6 Adjustment method ---------------------- 1-24 Troubleshooting -------------------------- 1-28 Description of major ICs ---------------- 1-32 Glossary of term and abbreviations -- 1-53

No.A0021

Oct. 2001

XV-FA90BK/XV-FA92SL/XV-FA95GD

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 manufacturer`s 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 re-assembling.

5. Leakage current check (Electrical shock hazard testing) After re-assembling 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. 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.).

0.15 F AC TYPE

1500 10W

Good earth ground

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

Place this probe on each exposed metal part.

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.

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 J and C version)

1-2

XV-FA90BK/XV-FA92SL/XV-FA95GD

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-FA90BK/XV-FA92SL/XV-FA95GD

Importance Admistering point on the Safety

CN952

B204

B316

Q952

B314

B313

R955

B504

C973

B203

B311

C970

B503

C994

IC952

B106

B310

B502

B104

C984

L959

C989

B802

B803

B804

C987

C981

L957

C997

C982

C979

L955

C995

C996

D954

B304

D908

R903

C909

D902

D904

D910

C914

C902 C903

F901

J901

FC901 FC902

B101

B205

B308

B307

B306

B341

B202

D974

D972

D973

R976

Q953

R963

R974

R975

R900

R973

D991

R965

R969

D956

R961

R960

C993

Q991

L901

B102

C905 C906

C919

R902

B701

C907

D901

R905

D911

R911

R907

B301

B201

B501

C915

HS901

R906

B302

K902

D957

C992

PC901

PC902

C917

C918

R908

R910

R901

B303

B801

C908

IC901

D903

C913

CN951

B320

B103

R956

R952

Q951

R953

D960

C951

C962

B312

C968

HS952

C978

D950

C969

IC951

B309

C967

C972

C966

C961

L952

L951

C960

C965

C971

D958

B305

D953

C964

C963

CP951

D951

D952

T901

R904

C910

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 ;

1-4

XV-FA90BK/XV-FA92SL/XV-FA95GD

Precautions for Service

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.

Destruction of Traverse Unit and Laser Pickup by Static Electricity

Laser diodes are easily destroyed by static electricity charged on clothing

or 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. After removing the flexible wire from the connector (CN101), short-circuit the flexible wire by the metal clip.

4. Short-circuit the laser diode by soldering the land which is provided at the two places of the flexible board for the pickup.

After completing the repair, remove at the two places of the solder to open the circuit.

Flexible wire

Metal clip

Pickup unit

Flexible board

Traverse mechanism unit

Land (Soldering two places)

1-5

XV-FA90BK/XV-FA92SL/XV-FA95GD

Disassembly method

Removing the top cover (See Fig.1)

Remove the four screws A on each side of the body.

Remove the two screws B on the back of the body.

Lift the rear part of the top cover and remove in the direction of the arrow while pulling both sides of the top cover outward.

Removing the front panel assembly

(See Fig.2 and 3)

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

Power board

CN951

Top cover

Fig.1

Servo control

board

CN801

Disconnect the card wire from connector CN801 and

CN803 on the servo control board the power board respectively.

Remove the three screws C on the upper side of the body.

Remove the three screws D on the bottom of the body.

Remove the front panel assembly toward the front.

and CN951 on

Front panel assembly

CN803

Fig.2

Front panel assembly

(Bottom)

1-6

Fig.3

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing the main tray assembly

(See Fig.4 to 7)

Prior to performing the following procedure, remove the top cover and the front panel assembly.

Turn over the body and insert a screwdriver into the slot of the bottom chassis, then move it in the direction of the arrow in Fig.4. The main tray assembly will move forward.

Draw the main tray assembly toward the front manually.

Bring up the joint a over the boss of the loading base assembly, and remove the main tray assembly toward the front.

Disconnect the card wire, on the back of the main tray assembly, from connector CN841 on the relay board 1.

Main tray assembly

Bottom chassis

(slot)

Fig.4

Joint a

Card wire

Main tray assembly

Loading base assembly

Bottom chassis

Fig.5

Relay board 1

CN841

Joint a

Loading base

assembly

Boss

Relay board 1

Main tray assembly

Fig.6Fig.7

1-7

XV-FA90BK/XV-FA92SL/XV-FA95GD

Reattaching the main tray assembly

(See Fig.8 to 10)

Turn over the main tray assembly and pass the card wire extending from the photo sensor board through the notch b, in advance (Fig.8).

From above the loading base assembly, turn the load base counterclockwise until the slide gear stops at the back end (Bring down the traverse mechanism assembly).

Reattach the main tray assembly to the loading base assembly while fitting to the groove on the right and left sides of the loading base assembly.

Connect the card wire through the notch b to connector CN841 on the relay board 1.

Reattach the main tray assembly while fitting the slot c to the shaft.

Main tray assembly

Photo sensor board

Loading base assembly

Load base

Notch b

Fig.8

Slide gear

Removing the loading base assembly

(See Fig.11)

Prior to performing the following procedure, remove the top cover, the front panel assembly and the main tray assembly.

Disconnect the wire from connector CN808, CN809 and the card wire from CN210 on the servo control board respectively.

Remove the seven screws E attaching the loading base assembly.

Joint a

Boss

Relay board 1

CN841

Loading base assembly

Fig.9

Slot c

Shaft

Fig.10

Servo control board

CN210

CN808

CN809

Fig.11

1-8

Removing the rear panel (See Fig.12)

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

Remove the fourteen screws F attaching the rear panel.

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing each board (See Fig.13,14)

Prior to performing the following procedure, remove the top cover, the front panel assembly, the main tray assembly, rear panel and the loading base assembly.

Surround audio board

Pull out the surround audio terminal board from

connector CN763.

Remove the screw G attaching the surround audio

board.

Pull out the surround audio board from connector

CN754 and CN603.

Servo control board

Pull out the relay board 2 on the upper side of the

body.

Disconnect the wire from connector CN807, CN810

and CN901 on the servo control board respectively.

Lug wire

Relay board 1

Power

board

CN842

Fig.12

Relay board 2

CN901

Fig.13

CN807

Rear panel

Surround audio

terminal board

CN763

CN754

A/V output board

CN603

Surround audio board

Servo control

board

CN810

Remove the screw I attaching the lug wire.

Remove the three screws H attaching the servo

control board.

Relay board 1

Disconnect the wire from connector CN842 on the relay board 1.

Remove the two screws I attaching the relay board.

A/V output board

Pull out the relay board 2 on the upper side of the body.

Remove the four screws J attaching the A/V output board.

Power board

Disconnect the wire from connector CN952 and CN953 on the power board.

Remove the four screws K on the upper side of the body.

Power board

CN952

CN953

Relay board 1

Fig.14

A/V output board

Relay board 2

Servo control

board

1-9

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing the traverse mechanism assembly (See Fig.15 and 16)

Prior to performing the following procedure, remove the top cover and the front panel assembly.

REFERENCE:

Eject the main tray assembly toward the front referring to “Removing the main tray assembly”.

Remove the two screws L and pull out the clamper base assembly upward.

Disconnect the card wire from connector CN210 on the servo control board.

Remove the four screws M and the traverse mechanism assembly upward.

CAUTION:

There is no need to remove the loading base assembly.

When reattaching the traverse mechanism assembly, pass the card wire extending from the traverse mechanism assembly through the notch d of the elevator base.

Clamper base

assembly

Servo control board

CN210

Fig.15

Notch d

Servo control board

CN210

Prior to performing the following procedure, remove the top cover and the front panel assembly.

Removing the power switch board

(See Fig.17)

Remove the two screws N on the back of the front panel assembly.

Disconnect the card wire from connector CN813 and CN806 on the power switch board.

Removing the operation switch board

(See Fig.17)

Remove the six screws O on the back of the front panel assembly.

Disconnect the card wire from connector CN812 on the operation switch board.

Removing the FL display board

(See Fig.17)

Remove the two screws P on the back of the front panel assembly.

Traverse mechanism

assembly

Operation switch board

FL display board

Fig.16

Fig.17

CN805

CN813

CN812

CN806

Power switch board

Disconnect the card wire from connector CN805 on the FL display board.

1-10

XV-FA90BK/XV-FA92SL/XV-FA95GD

Prior to performing the following procedures, remove the top cover, the front panel assembly, the main tray assembly, the loading base assembly.

Removing the elevator base

(See Fig.18 and 19)

REFERENCE:

Turn over the loading base assembly and remove the two screws Q.

Remove the elevator base upward.

It is not necessary to remove the traverse mechanism assembly from the elevator base. As the removing procedure of the traverse mechanism, please refer to

“Removing the traverse mechanism

assembly”.

Slide gear

Elevator base

Shafts

Fig.18

Slide gear

Reattaching the elevator base

REFERENCE:

Reattach the elevator base to the loading base assembly while fitting the two shafts on the side of the elevator base to the grooves of the slide gear.

Reattach the two screws Q.

From above the loading base, turn the load base counterclockwise until the slide gear stops at the back end as shown in Fig.19.

Load base

Fig.19

1-11

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing the belt / load base / slide gear

Prior to performing the following procedures, remove the elevator base.

Remove the belt on the upper side of the loading base assembly.

Remove the screw R attaching the pulley gear.

Remove the pulley gear, the gear 1, the gear 2 and the belt respectively.

Remove the screw S and the load base upward.

Remove the two screws T and the slide gear upward.

CAUTION: When reattaching the slide gear and the load base,

Move the slide gear toward the front until it stops (Fig.23).

Loading base assembly

Belt

Pulley gear

Fig.20

Gear 2

Pulley gear

Gear 1

Make sure that the part d of the load base is out of alignment with the switch e and that the gear f is disengaged from the slide gear.

Slide gear

Switch e

Load base

Loading base assembly

Fig.21

Slide gear

1-12

Part d

Gear f

Fig.22Fig.23

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing the loading motor / loading motor board (See Fig.24 and 25)

Remove the two screws U attaching the loading motor on the upper side of the loading base assembly.

Turn over the loading base assembly and unsolder the two soldering g on the loading motor board.

Remove the two screws V attaching the loading motor board.

Spread apart the two tabs h and pull out the loading motor.

CAUTION:

When reattaching the loading motor board, settle the wires on the two hooks i on the loading base assembly and draw the other end to the left as shown in Fig.26.

Removing the tray switch board

(See Fig.26)

Loading motor

Fig.24

Loading motor board

Turn over the loading base assembly, and remove the tray switch board while spreading apart the two tabs j.

Hooks i

Tray switch board

Tabs j

Loading motor board

Soldering g

Tabs h

Loading motor

Fig.25Fig.26

1-13

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing the pickup (See Fig.1 to 5)

It is not necessary to remove the traverse mechanism unit.

Solder soldering a on the flexible board next to the pickup unit.

From the bottom of the traverse mechanism unit, disconnect the flexible wire from CN101 on the pickup board.

ATTENTION:

Remove the screw A attaching the shaft stopper (R) on the upper side of the traverse mechanism unit. Pull the side of the shaft stopper (R) outward to release the joint b and remove it upward. Remove the skew spring at the same time.

Disconnecting the flexible wire without soldering may cause damage to the pickup.

Traverse mechanism unit

Pickup unit

Flexible board

Soldering a

Fig.1

Pickup board

CN101

Flexible wire

Move the shaft in the direction of the arrow to release it from the part c.

Release the joint d with the shaft and remove the pickup with the shaft.

Pull out the shaft.

Remove the screw B attaching the switch actuator.

Shaft

Pickup

Switch actuator

Pickup unit

Shaft

Joint d

Shaft stopper (R)

Fig.2

Shaft stopper (R)

Fig.3

Shaft

Part c

Shaft stopper (R)

Joint b

1-14

Fig.5

Skew spring

Shaft

Fig.4

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing the pickup board

(See Fig.1 and 6)

It is not necessary to remove the traverse mechanism unit.

Solder soldering a on the flexible board next to the pickup unit.

From the bottom of the traverse mechanism unit, disconnect the flexible wire from CN101 on the pickup board.

ATTENTION:

Disconnect the card wire from connector CN201 on the pickup board and unsolder the soldering e and f on the harnesses

Remove the screw C attaching the pickup board and release the two joints g.

Disconnecting the flexible wire without soldering may cause damage to the pickup.

Traverse mechanism unit

Joint g

Feed motor

assembly

Pickup unit

Flexible board

Soldering a

Fig.1

Pickup board

CN101

Removing the feed motor assembly

(See Fig.1, 6 and 7)

Prior to performing the following procedure, remove the traverse mechanism unit.

Solder soldering a on the flexible board next to the pickup unit.

From the bottom of the traverse mechanism unit, disconnect the flexible wire from CN101 on the pickup board.

ATTENTION:

Remove the pickup board.

Remove the two screws D attaching the feed motor assembly and remove the thrust spring. Move the feed motor assembly in the direction of the arrow to pull it out from the feed holder.

Disconnecting the flexible wire without soldering may cause damage to the pickup.

Soldering f

Feed holder assembly

Soldering e

Feed motor assembly

CN201

Fig.6

Thrust spring

Fig.7

1-15

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing the turn table assembly

(See Fig.6, 8 and 9)

Prior to performing the following procedure, remove the traverse mechanism unit.

Disconnect the card wire extending from the turn table assembly, from connector CN201 on the pickup board.

Remove the screw E attaching the shaft stopper (F) on the upper side of the traverse mechanism unit. Pull the side of the shaft stopper (F) outward to release the joint h and remove it upward. Remove the spring at the same time.

Remove the screw F attaching the turn table assembly.

Move the turn table assembly outward and pull out from the shaft. Then remove it from the base chassis.

Pickup board

CN101

CN201

Fig.6

Traverse mechanism unit

Shaft stopper (F)

Turn table assembly

Shaft stopper (F)

Joint h

Fig.8

Shaft stopper (F)

Spring

1-16

Shaft

Base chassis

Shaft

Turn table assembly

Fig.9

Prior to performing the following procedures, remove the top cover, the front panel assembly and the main tray assembly.

XV-FA90BK/XV-FA92SL/XV-FA95GD

Main tray assembly

Removing the fitting (See Fig.1)

Remove the fitting on the front side of the main tray assembly while releasing the four joints a upward.

Hook

Fitting

Lifts for above while pulling the hook in three places to front side.

Removing the main tray cover and the main tray (See Fig.2 and 3)

Prior to performing the following procedure, remove the fitting.

Joints a

Fitting

Main tray

assembly

Joints a

Fig.1

Remove the six screws A attaching the main tray on the under side of the main tray assembly.

Remove the screw B attaching the main tray cover on the upper side of the main tray assembly.

Push the two joint tabs b on the back of the main tray assembly to release the main tray cover from the tray bottom. Disengage the joint tabs c of the main tray from the main tray cover.

Main tray cover

Joint tab c

Fig.2

Joint tab c

Joint tab b

Main tray

Fig.3

1-17

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing the photo sensor board and the sub tray drive motor assembly

(See Fig.4)

Turn over the main tray assembly and remove the two screws C attaching the photo sensor board.

Disconnect the card wire from connector CN082 on the photo sensor board.

CN081

Sub tray drive motor assembly

Notch e

REFERENCE:

Remove the two screws D attaching the sub tray drive motor assembly.

Make sure to disconnect the card wire from the photo sensor board. If the photo sensor board is pulled out from the main tray without disconnecting the card wire, the cam switch side inside of the main tray may be damaged.

When reassembling,

Attach the two wires to the part d on the photo sensor board, and before reattaching the photo sensor board, connect the card wire to connector CN082 and pass the card wire extending from connector CN081 through the notch e of the main tray.

Part d

Photo sensor board

CN082

Main tray

Card wire

Fig.4

1-18

XV-FA90BK/XV-FA92SL/XV-FA95GD

Sub tray position and operation check

(See Fig.5 and 6)

Prior to performing the following procedures, remove the fitting and the main tray cover.

CAUTION:

Make sure the sub trays are set as shown in Fig.5. When moving the sub trays, put the sub trays which come to the position (4) and (5) forward in turn.

Prior to moving the sub trays by hand, the sub tray drive motor assembly must be removed in advance referring to the preceding page.

Do not put the sub trays forward except at the position (4) and (5).

(3)

(2)

(4)

Sub tray (1)

(7)

(6)

(5)

Fig.5

Removing the U/D cam (U) (See Fig.7)

Prior to performing the following procedure, remove the main tray cover.

Remove the two screws E attaching the U/D cam (U) on the upper side of the main tray assembly.

Fig.6

U/D cam (U)

Fig.7

1-19

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing the sub trays (See Fig.8 to 14)

Prior to performing the following procedure, remove the main tray cover and the U/D cam (U).

CAUTION:

Remove the sub tray assembly (4), (3), (2), (5), (6), (7) and (1) in order. When reattaching, observe the following procedure without fail.

Remove the sub tray (4) and (3) from the main tray upward.

Remove the sub tray (2) upward.

Similarly, remove the sub tray (5) , (6) and (7) upward.

At last, remove the sub tray (1) upward.

Reattaching the sub tray

Reattach the sub tray (1) while fitting the part f to the groove of the ACT. gear (1) marked g.

(3)

Sub tray (2)

Sub tray (4)

(6)

(5)

Fig.8

(1)

(7)

Fig.9

Reattach the sub tray (2) while inserting the shaft h into the groove i of the main tray, and at the same time, fitting the part j to the groove of the ACT. gear (1) marked k .

Move the sub tray (2) toward the tray (1).

Similarly, reattach the sub tray (7).

Shaft h

Marked k

Groove i

Sub tray (2)

Part j

Sub tray (1)

Sub tray (7)

Part f

Marked g

1-20

Fig.10

XV-FA90BK/XV-FA92SL/XV-FA95GD

Reattach the sub tray (3) while inserting the shaft l into the groove m of the main tray, and at the same time, putting the shaft n on the U/D cam (L). Then, move the sub tray (3) toward the sub tray (2) until it stops.

REFERENCE:

At this point, the sub tray (3) is on top of the sub tray (2).

Reattach the sub tray (4) while fitting the part o to the ACT.gear (2) on the main tray.

CAUTION:

Make sure the part o of the sub tray (4) engages with the ACT. gear (2) correctly in the center of the main tray.

REFERENCE:

At this point, the sub tray (4) is on top of the sub tray (3).

Reattach the sub tray (6) and (5) in the same way.

Sub tray (4)

Shaft l

Sub Tray (3)

Part o

Groove m

Shaft n

Sub tray (2)

Fig.11

CAUTION:

Sub tray (6)

Make sure that the trays are attached to the correct position and that they can be moved. To move the sub trays manually, the sub tray drive motor assembly must be removed in advance.

Sub tray (5)

Sub tray (3)

Fig.12

Sub tray (5)

Fig.14Fig.13

1-21

XV-FA90BK/XV-FA92SL/XV-FA95GD

Removing the cam switch board assembly

(See Fig.15 to 17)

Prior to performing the following procedure, remove the main tray cover, the U/D cam (U) and the sub trays.

Remove the screw F attaching the gear cover. Release the two tabs marked p by pushing inward.

Remove the cam gear (2) upward.

Disconnect the card wire from connector CN083 on the cam switch board assembly.

Remove the two screws G attaching the cam switch board assembly.

CAUTION:

When reattaching the cam gear (2), set the position of the boss and the triangular mark and hole as shown in Fig.17.

Tabs marked p

Fig.15

Cam switch board assembly

Cam gear (2)

Gear cover

CN083

High tooth

Arrow mark

Position the high tooth and the arrow mark

Fig.16

Hole

A hole and a triangular mark become right above.

Triangular mark

Set the position of the boss

Fig.17

1-22

Removing the ACT. gear (1), U/D cam (L), cam gear (1) and ACT.gear (2)

(See Fig.18 and 19)

XV-FA90BK/XV-FA92SL/XV-FA95GD

U/D cam (L)

Prior to performing the following procedure, remove the main tray cover, the U/D cam (U) and the sub trays.

Draw out the U/D cam (L).

Draw out the ACT. gear (1).

Draw out the cam gear (1).

Draw out the ACT. gear (2) while pushing the two

CAUTION:

When reassembling, make sure the position of each gear referring to Fig.19 and reattach the ACT. gear (2) first.

ACT. gear (1)

ACT. gear (2)

Cam gear (1)

Fig.18

ACT. gear (1)

Cam gear (1)

U/D cam (L)

ACT. gear (2)

Tabs q

Fig.19

1-23

XV-FA90BK/XV-FA92SL/XV-FA95GD

Adjustment method

(1) Test mode setting method

1)Take out the disc and close the tray.

2)Unplug the power plug.

3)Insert power plug into outlet while pressing both "PLAY" button and "STOP" button of the main body.

4)The player displays "TEST " on the FL display. keeps pushing the button until this is displayed. " " means the player version.

5)When the power supply is turned off, test mode is released.

The mode changes as follows whenever the "CHOICE" button of remote controller is pushed in test mode.

TEST_ _ -----------------------

--------

_ _ _ ------------

CHECK ---------------------------------

FL display becomes all lighting ---

EXPERT ---------------------------------

Becomes test mode

Device key index

Version of microcomputer

Check mode

Confirmation of FL display

Not use mode

(2) Initialization method

Please initialize according to the following procedures when microprocessor or pick-up is exchanged and when the up-grade is done.

1)Makes to test mode.

2)After "FORWARD SKIP" button ( ) of the main body is pushed, "PAUSE" button is pushed.

3)DVD AUDIO indicator lights when about ten seconds pass. Then, it is initialization completion.

(3) Method of displaying device key index

1)Makes to test mode and initializes.

2)When "CHOICE" button of remote controller is pushed once, the device key index is displayed on the FL display as follows.

FL Display

is a figure or an alphabet.

(4) Method of displaying version of microcomputer

1)Makes to test mode and initializes

2)When "CHOICE" button of remote controller is pushed twice, the figure is displayed on the FL display as follows.

FL Display

FL Display microcomputer (IC801) Front end microcomputer (IC401)

BACK SKIP Button

(display of current value)

TOP MENU Button

CURSOR UP Button (firmware upgrade)

CHOICE Button (switch of mode)

1-24

(laser ON)

45_33_45_F0

POWER

Button

DVD AUDIO

Indicator

(for initialize)

FL Display

Microcode of decoder Decoder part (IC509)

(for test mode or display of jitter value)

PLAY Button

STOP Button

(for test mode)

PAUSE Button (automatic adjustment or initialize)

FORWARD SKIP Button

(for initialize)

XV-FA90BK/XV-FA92SL/XV-FA95GD

(5) Display of current value of laser

1)Makes to test mode and initializes

2)When "CHOICE" button of remote controller is pushed three times, It is displayed on the FL display, "CHECK".

3)The display of FL display changes from "CHECK" into "LD_ON" if the "TOP MENU" button of remote controller is pushed.

4)The laser is turned on if the "BACK SKIP" button ( ) of remote controller is pushed in the state, and the current value of the laser is displayed on the FL display.

FL Display

LD_0042

As for the current value of the laser, the figure displayed on the FL display becomes a current value as it is by "mA" unit. becomes 42mA if displayed as 42.

5)The laser changes from DVD into CD if 3) and 4) of the above-mentioned procedures are done after the tray is opened and closed pushing the "OPEN/CLOSE" button of the main body. (The laser changes whenever this is done.Moreover, the value displayed first is a laser electric current of DVD. )

If the laser current value is 64mA or less, it is roughly good. There is a possibility to which pick-up is deteriorated, and exchange pick-up, please when there are 65mA or more laser current value.

(6) Display of jitter value

1)Makes to test mode and initializes

2)When "CHOICE" button of remote controller is pushed three times, It is displayed on the FL display, "CHECK".

3)The automatic adjustment starts when test disk (VT-501) is inserted, and "PAUSE" button of the main body is pushed.

4)When the display of the FL display changes into "CHECK OK", the "PLAY" button of the main body is pushed.

5)The jitter value is displayed on the FL display as follows.

FL Display

JIT_3978

If the indication value is 11% or less, it can be judged by this simple checking method that the signal read precision of the set is satisfactory. Please do "Flap adjustment of the pick-up guide shaft" when you replace the pick-up and the spindle motor when there are 11% or more jitter value.

The jitter value is displayed by the hexadecimal number and refer to the conversion table of following, please.

Jitter value

FL display FL display

3818 3828 3838 3848 3858 3868 3878 3888 3898 38A8 38b8 38c8 38d8 38E8 38F8 3918 3928 3938 3948 3958 3968 3978 3988

Conversion value(%)

4.7

4.8

4.9

5.1

5.2

5.3

5.4

5.5

5.7

5.8

5.9

6.0

6.1

6.3

6.4

6.6

6.7

6.9

7.0

7.1

7.2

7.3

7.5

3998 39A8 39B8 39C8 39D8 39E8 39F8 3A18 3A28 3A38 3A48 3A58 3A68 3A78 3A88 3A98 3AA8 3AB8 3AC8 3AD8 3AE8 3AF8

Conversion value(%)

7.6

7.7

7.8

7.9

8.1

8.2

8.3

8.5

8.7

8.8

8.9

9.0

9.1

9.3

9.4

9.5

9.6

9.7

9.9

10.0

10.1

10.2

FL display FL display

3B18 3B28 3B38 3B48 3B58 3B68 3B78 3B88 3B98 3BA8 3BB8 3BC8 3BD8 3BE8 3BF8 3C18 3C28 3C38 3C48 3C58 3C68 3C78 3C88

Conversion value(%)

10.5

10.6

10.7

10.8

10.9

11.1

11.2

11.3

11.4

11.5

11.7

11.8

11.9

12.0

12.1

12.4

12.5

12.7

12.9

13.0

13.1

13.2

3C98 3CA8 3CB8 3CC8 3CD8 3CE8 3CF8 3D18 3D28 3D38 3D48 3D58 3D68 3D78 3D88 3D98 3DA8 3DB8 3DC8 3DD8 3DE8 3DF8

Conversion value(%)

13.3

13.5

13.6

13.7

13.8

13.9

14.1

14.3

14.4

14.5

14.7

14.8

14.9

15.0

15.1

15.3

15.4

15.5

15.6

15.7

15.9

16.0

1-25

XV-FA90BK/XV-FA92SL/XV-FA95GD

(7) Flap adjustment of the pick-up guide shaft

Stud (four pieces set)

Parts No. : JIGXVS40

Hex wrench for adjustment

Off-the-shelf (1.3mm)

Test disc

VT-501 or VT-502

1. The metal cover is detached, the "OPEN/CLOSE" button is pushed, and the tray is done in open.

2. The AC plug code is pulled out once in the state.

3. Remove the surround audio board and surround audio terminal board respectively.

4. The traverse mechanism is detached, and the card wire is connected with CN210.

5. The stud is installed in the traverse mechanism as shown in Figure. The clamper is removed from the clamper base.

6. The disk (Everything is good) is put on sub-tray 1, the test disk is put on the turntable in the traverse mechanism, and fixes by the clamper.

7. The card wire becomes under the main tray, and the main tray is closed by hand operated.

8. The AC plug code is inserted, and the "DISC1" button is pushed (Please push the "DISC1" button directly without pushing the power supply button).

9. Because the playback of "DISC1" starts, stops and the AC plug code is pulled out.

Stud

10.The AC plug code is made insertion test mode while pushing the "PLAY" button and the "STOP" button of the main body at the same time.

11.Please push the "PAUSE" button after pushing the "FORWARD SKIP" button of the main body, and confirm DVD AUDIO indicator lights after a few seconds.

12.When the "CHOICE" button of remote controller is pushed three times, it is displayed on the FL display as "CHECK".

13.The display of the FL display changes into "CHECK OK" after a few seconds if the "PAUSE" button of the main body is pushed in the state. When the "PLAY" button of the main body is pushed afterwards, the jitter value is displayed on the FL display.

Main tray

Card wire

Disc(Everything is good) on the sub tray 1

push

Main tray

CN210 and card wire

Clamper

TEST Disc

Stud

Traverse mechanism

Stud

1.Puts into the state to display the jitter value on the FL display referring to "(6) Display of jitter value".

2.The adjustment screw under the traverse mechanism is turned with hex wrench, and matches so that the jitter value displayed on the FL display may become minimum value.

1-26

Adjustment screw c

Adjustment screw a Adjustment screw b

<POINT>

1.turns in the forward or the opposite direction, and makes to the position where the jitter value is good the half rotation of adjustment screw a and b(180 degrees) respectively.

2.Afterwards, adjustment screw b and c are turned in the same way, and makes to the best position.

XV-FA90BK/XV-FA92SL/XV-FA95GD

(8) Upgrading of firmware

Please do the up-grade of the firmware after exchanging IC509,IC512,IC513.

1)The power supply is turned on pushing the "POWER" button.

2)The up-grade disk is put on sub-tray 1 pushing OPEN/CLOSE button, and the DISC1 button of the main body is pushed.

3)When FL display of the main body changes from "READING" into "UPGRADE", cursor UP button ( ) of remote controller is pushed.

4)The up-grade starts if the entire screen becomes blue and it is displayed, "writing block at 00000000".

5)The up-grade disk is taken out pushing the OPEN/CLOSE button when returning to the normal screen.

6)Please confirm the version of the microcomputer after makes to test mode and initializes.

writing block at 00000000

After inserting the up-grade disk

In case of 3)

Upgrading (blue screen)

In case of 4)

When up-grade is completed

In case of 5)

1-27

XV-FA90BK/XV-FA92SL/XV-FA95GD

Troubleshooting

Servo volume

Press OPEN /CLOSE key

Is tray

operation

Confirmation of tray drive circuit

and circuit in surrounding

correct?

Is the traverse moving along the innermost

perimeter for SW detection?

"NO DISC" message appears

immediately after vertical movement of the pick-up lens

The state that DISC does not rotate continues for several seconds, and becomes NO DISC or an error display afterwards. The rotation of DISC becomes high-speed and abnormal, and becomes NO DISC or an error display afterwards.

Is focus retraction OK?

OFF Even when it retracts correctly, if it is out of focus and makes repeated retries with a clicking sound, it is in error.

See "(4) Focus ON error"

in "Check points for individual errors"

Is tracking retraction OK?

See "(3) Traverse movement error" in "Check points for individual errors"

See "(2) Disk detection, distinction error" in "Check points for individual errors"

See "(1) Spindle startup error" in "Check points for individual errors"

Is the inter-layer jump OK?

LO LI

Two layers of DVD only.

(8) Inter-layer

jump error

OFF

If TE waveform reappears or fails to converge after the TE retraction, it is in error.

Is the spindle servo

locked correctly?

Is the RF OUT waveform

locked correctly?

1-28

See "(5) Tracking ON error"

in "Check points for individual errors"

Has the disc information

been collected?

Stop will result

(7) Address read

error

Check (9),(10),(11), and

See "(6) Spindle CLV error"

in "Check points for individual errors"

Is playback

possible?

(12) items in "Check points for individual errors"

OK !

XV-FA90BK/XV-FA92SL/XV-FA95GD

Check points for each error

(1) Spindle start error

1.Defective spindle motor

*Are there several ohms resistance between each pin of CN201 "11-10","10-9","11-9"? (The power supply is turned off and measured.)

*Is the sign wave of about 100mVp-p in the voltage had from each terminal? [ CN201"6"(H1-),"7"(H1+),"4"(H2-),"5"(H2+),"2"(H3-),"3"(H3+) ]

2.Defective spindle motor driver (IC251)

*Has motor drive voltage of a sine wave or a rectangular wave gone out to each terminal(SM1~3) of CN201"9,10,11" and IC251"2,4,7"?

*Is FG pulse output from the terminal of IC251"24"(FG) according to the rotation of the motor?

*Is it "L(about 0.9V)" while terminal of IC251"15"(VH) is rotating the motor?

3.Has the control signal come from servo IC or the microcomputer?

*Is it "L" while the terminal of IC251"18"(SBRK) is operating? Is it "H" while the terminal of IC251"23"(/SPMUTE) is operating?

*Is the control signal input to the terminal of IC251"22"(EC)? (changes from VHALF voltage while the motor is working.)

*Is the VHALF voltage input to the terminal of IC251"21"(ECR)?

4.Is the FG signal input to the servo IC?

*Is FG pulse input to the terminal of IC201"53"(FG) according to the rotation of the motor?

(2) Disc Detection, Distinction error (no disc, no RFENV)

* Laser is defective. * Front End Processor is defective (IC101). * APC circuit is defective. --- Q101,Q102. * Pattern is defective. --- Lines for CN101 - All patterns which relate to pick-up and patterns between IC101 * Servo IC is defective (IC201). * IC101 --- For signal from IC101 to IC201, is signal output from IC101 "20" (ASOUT) and IC101 "41"(RFENV) and IC101 "22" (FEOUT)?

* The disc exists in a sub tray. However, a sub tray is sent as follows the turntable without rising. (Especially, when the disk is CD-RW)

--- IC81 is defective. Exchanges for "GP2S28J" of the rank specification parts.

1-29

XV-FA90BK/XV-FA92SL/XV-FA95GD

(3) Traverse movement NG

1.Defective traverse driver *Has the voltage come between terminal of CN101 "15" and "13" ?

2.Defective BTL driver (IC271) *Has the motor drive voltage gone out to IC271"17" or "18"?

3.Has the control signal come from servo IC or the microcomputer? *Is it "H" while the terminal of IC271"9"(STBY1) ? *TRSDRV Is the signal input? (IC201 "51")

4.TRVSW is the signal input from microcomputer? (IC401 "50")

(4) Focus ON NG

* Is FE output ? --- Pattern, IC101 * Is FODRV signal sent ? (R279) --- Pattern, IC201 * Is driving voltage sent ?

IC271 "13", "14" --- If NG, pattern, driver, mechanical unit .

* Mechanical unit is defective.

(5) Tracking ON NG

* When the tracking loop cannot be drawn in, TE shape of waves does not settle. * Mechanical unit is defective.

Because the self adjustment cannot be normally adjusted, the thing which cannot be normally drawn in is thought. * Periphery of driver (IC271)

Constant or IC it self is defective. * Servo IC (IC201)

When improperly adjusted due to defective IC.

(6) Spindle CLV NG

* IC101 -- "35"(RF OUT), "30"(RF-), "31(RF+). * Does not the input or the output of driver's spindle signal do the grip? * Has the tracking been turned on? * Spindle motor and driver is defective. * Additionally, "IC101 and IC201" and "Mechanism is defective(jitter)", etc. are thought.

(7) Address read NG

* Besides, the undermentioned cause is thought though specific of the cause is difficult because various factors are thought.

Mechanism is defective. (jitter)

IC201, IC301, IC401.

The disc is dirty or the wound has adhered.

(8) Between layers jump NG (double-layer disc only)

Mechanism defective Defect of driver's IC(IC271) Defect of servo control IC(IC201)

1-30

+ 76 hidden pages

JVC XVFA-90-BK, XVFA-92-SL, XVFA-95-GD Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual