JVC XV-M565BK, XV-M567GD Service Manual

XV-M565BK/M567GDXV-M565BK/M567GD

SERVICE MANUAL

DVD PLAYER

XV-M565BK/M567GD

Contents

Safety precautions Important for laser products Preventing static electricity Dismantling and assembling

the traverse unit

Disassembly method

This service manual is printed on 100% recycled paper.

1-2 1-3 1-4

1-5 1-6

Areas suffix

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

Check points for each error Precautions for service Troubleshooting Adjustment method Description of major ICs

1-21 1-24 1-25 1-31 1-34

No.20845

Jun. 2000

XV-M565BK/M567GD

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 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 currnet 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 eachexposed metal part, particularly any exposed metal part having a return path to the chassis, and meausre 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.

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.

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.

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CAUTION

Important for Laser Products

XV-M565BK/M567GD

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 laserradiation and is equipped with safety switches whichprevent 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

DANGER : Invisibie laser radiation when open and interlock or defeated. AVOID DIRECT EXPOSURE TO BEAM (e)

VARO : Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle.Älä katso säteeseen. (d)

VARNING : Osynlig laserstrålning är denna del är öppnad och spårren är urkopplad. Betrakta ej strålen. (s)

ADVARSEL :Usynlig laserstråling ved åbning , når sikkerhedsafbrydere er ude af funktion. Undgå udsættelse for stråling. (f)

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XV-M565BK/M567GD

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

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XV-M565BK/M567GD

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 rclip

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XV-M565BK/M567GD

Disassembly method

Main body

Removing the Top cover (See Fig.1)

Remove the two screws A attaching the top cover on the back of the body.

Remove the four screws B attaching the top cover on both sides of the body.

Pull the lower parts of the top cover sides and remove the top cover in the direction of the arrow.

Removing the Front panel assembly

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

Disconnect the harness from connector CN971 and CN972 on the power supply board.

(See Fig.2 to 5)

Top cover

Power supply board

Fig.1

System control board

Disconnect the card wire from connector CN703 on the system control board.

Remove the three screws C attaching the front panel assembly on the bottom of the body.

Release the joint a on the bottom and the two joints b on both sides of the body. Remove the front panel assembly toward the front.

CN971 CN972

Front panel assembly

Fig.2

Front panel assembly

Joint a

CN703

1-6

Fig.3

Front panel assembly

XV-M565BK/M567GD

Fig.5

Removing the Rear panel (See Fig.6)

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

Remove the eleven screws D attaching the rear panel on the back of the body and detach the rear panel.

Removing the DVD changer mechanism assembly

(See Fig.7 and 8)

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

The DVD changer mechanism assembly can be removed even if the front panel assembly is attached.

Joints b

Fig.4

Rear panel

Fig.6

Shield case

Remove the four screws E attaching the DVD changer mechanism assembly cover and detach the shield case at an angle.

Disconnect the 9pin harness from connector CN961 on the power supply board.

Disconnect the card wire from connector CN601 on the video board.

Disconnect the card wires from connector CN701 and CN702 on the system control board.

Remove the four screws F attaching the DVD changer mechanism assembly. Pull up the DVD changer mechanism assembly at an angle from the front panel assembly.

DVD changer mechanism assembly

Power supply board

CN961

Fig.7

Fig.8

Video board

CN601

CN701

System control board

CN702

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XV-M565BK/M567GD

Removing the Power supply board

(See Fig.9 and 10)

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

Disconnect the harness from connector CN971 and CN972 on the regulator board (The harness is extending from the front panel assembly).

Disconnect the 9pin harness from connector CN961 on the power supply board (The harness is extending from the DVD changer mechanism assembly).

Disconnect the harness from connector CN951 and CN952 on the power supply board (The harness is extending from the system control board).

Remove the screw D attaching the AC jack on the rear panel.

Remove the two screws G attaching the power supply board and detach the power supply board.

Power supply board

CN971 CN972

CN961

Rear panel

CN951 CN952

Shield case

Rear panel

Front panel assembly

Fig.9

Fig.10

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XV-M565BK/M567GD

Removing the Video board

(See Fig.11 and 12)

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

Disconnect the card wire from connector CN601 on the video board (The card wire is extending from the DVD changer mechanism assembly).

Disconnect the harness from connector CN704 on the system control board (The harness is extending from the video board).

Remove the three screws D attaching the video board on the rear panel. Pull out the video board from the rear panel.

Removing the System control board

(See Fig.13 and 14)

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

Rear panel

Front panel assembly

Shield case

Fig.11

Rear panel

Fig.12

CN601

Video board

CN704

System control board

The audio board can be removed even if the video board is attached.

Disconnect the card wire from connector CN703 on the system control board (The card wire is extending from the front panel assembly).

Disconnect the card wire from connector CN701 and CN702 on the audio board (The card wires are extending from the DVD changer mechanism assembly).

Disconnect the harness from connector CN704 on the system control board (The harness is extending from the video board).

Disconnect the harness from connector CN951 and CN952 on the power supply board (The harness is extending from the system control board).

Remove the screw H attaching the system control board.

Remove the five screws D attaching the system control board on the rear panel. Pull out the system control board toward the front.

Power supply board

Front panel assembly

CN951 CN952

Shield case

Rear panel

Fig.13

Rear panel

CN704

CN703 CN702

Video board

CN701

System control board

Fig.14

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XV-M565BK/M567GD

Front panel assembly

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

Removing the Front board (See Fig.15)

Remove the four screws I attaching the bracket on the back of the front panel assembly. Remove the bracket.

Unsolder the terminal FW802 of the harness connecting the FL indicator board and the volume board.

Front panel assembly

Volume board

FW802

Bracket

FL indicator

board

Fig.15

Remove the eight screws J and the FL indicator board.

Removing the Volume board

(See Fig.16 and 17)

Pull out the shuttle knob on the front panel assembly.

Unsolder the terminal FW802 on the back of the front panel assembly (The harness of FW802 is connecting the volume board and the FL indicator board).

Remove the three screws K and the volume board.

Front panel assembly

Shuttle knob

Fig.16

Volume board

FW802

1-10

Fig.17

XV-M565BK/M567GD

DVD Changer Mechanism Assembly

Prior to performing the following procedure, remove the top cover and the DVD changer mechanism assembly.

Removing the traverse mechanism control board (See Fig.18)

Disconnect the card wire from connector CN101 on the traverse mechanism control board on the bottom of the DVD changer mechanism assembly.

Remove the screw L attaching the traverse mechanism control board. Release the three parts e, f and g and remove the traverse mechanism control board.

Disconnect the card wire from connector CN102 on the traverse mechanism control board.

Ejecting the DVD (See Fig.19 and 20)

When the DVD is set or the traverse mechanism is up.

The DVD tray can not be ejected when the traverse mechanism is up.

DVD changer mechanism assembly

Par t

CN101

Par t

Fig.18

DVD traverse mechanism control board

Par t

CN102

Bringing down the traverse mechanism as shown in the Fig.20

The motor pulley and the belt can be seen on the front side of the changer. Turn the motor pulley clockwise until the belt stops.

Pull the tray lock lever on the left side of the changer and draw the DVD tray.

Draw the DVD tray 1 to 3 as above.

Traverse mechanism

As the motor pulley is turned, the traverse mechanism lowers.

Fig.19

Belt

Motor pulley

Draw the DVD tray.

Tray stopper

Fig.20

Tray lock lever

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XV-M565BK/M567GD

DVD Changer Mechanism Section

Removing the DVD mechanism board (See Fig.1)

Remove the DVD mechanism assembly cover.

Remove the DVD changer mechanism assembly.

From bottom side the DVD changer mechanism assembly, remove the one screw A retaining the DVD traverse mechanism control board. Disconnect the card wire from the connectors CN101

4. and CN102 on the DVD traverse mechanism control board.

Disengage the one engagement a and two

5. engagements b , remove the DVD traverse mechanism control board.

Removing the DVD tray assembly (See Fig.2~4)

Remove the front panel assembly.

1. Remove the DVD changer mechanism assembly.

2. Remove the DVD traverse mechanism control board.

3. Remove the screw B retaining the Disc stopper

4. (See Fig.3). Remove the three screws C retaining the T.bracket

5. (See Fig.3). From the clamper base section c, remove both of the

6. edges fixing the rod(See Fig.2 and 3). Remove the screw D retaining the clamper assembly

7. (See Fig.3). From the left side face of the chassis assembly, remove

8. the one screw E retaining both of the return spring and lock lever(See Fig. 4). By removing the pawl at the section d fixing the return

9. spring, dismount the return spring(See Fig.4). Remove the three lock levers(See Fig.4).

10.

Disc stopper

T.Bracket

DVD traverse

mechanism

control baord

CN102

CN101

Fig.1

Clamper base

Rod

T.Bracket

Fig.2

1-12

Clamper ass'y

Fig.3

Lod stopper (C/J version only)

Return spring

Lock lever

Fig.4

XV-M565BK/M567GD

11.

Check whether the lifter unit stopper has been caught into the hole at the section e of DVD tray assembly as shown in Fig.5. Make sure that the driver unit elevator is positioned as

12. shown in Fig.6 from to the second or fifth hole on the left side face of the DVD Traverse mechanism assembly.

[Caution]

13.

14.

15.

Chassis assembly

In case the driver unit elevator is not at above position, set the elevator to the position as shown in Fig.7 by manually turning the pulley gear as shown in Fig.8.

Manually turn the motor pulley in the clockwise direction until the lifter unit stopper is lowered from the section e of DVD tray assembly(See Fig.8). Pull out all of the three stages of DVD tray assembly in the arrow direction f until these stages stop (See Fig.6). At the position where the DVD tray assembly has stoppend, pull out the DVD tray assembly while pressing the two pawls g and g' on the back side of DVD tray assembly(See Fig.9). In this case, it is easy to pull out the assembly when it is pulled out first from the stage DVD tray assembly.

Fig.5

Stopper

DVD tray assembly

Refer to Fig.7

Pulley gear

Pawl

DVD tray assembly

Drive unit of elevator

Fig.7Fig.6

DVD tray assembly

Motor pulley

Fig.8

Pawl ,

Fig.9

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XV-M565BK/M567GD

Removing the DVD mechanism assembly(See Fig.10)

1.2.While turning the cams R1 and R2 assembly in the arrow direction h , align the shaft i of the DVD mechanism assembly to the position shown in Fig.10. Remove the four screw F retaining the DVD mechanism assembly.

Removing the DVD mechanism (See Fig.11 and 12 )

For dismounting only the DVD machanism without

1. removing the DVD mechanism assembly, align the shaft j of the DVD mechanism assembly to the position shown Fig.11 while turning the cam R1 and R2 assembly in the arrow direction k. Remove the two screws G raising the DVD mechanism

2. assembly. Remove the DVD mechanism assembly in the arrow

3. direction I from the lifter unit (See Fig. 12)

Cam R1, R2 assembly

Cams R1, R2 assembly

Arrow

DVD mechanism assembly

Fig.10

DVD mechanism assembly

Arrow

Lifter unit

Fig.11

Fig.12

Arrow

1-14

Removing the mechanism control

board (See Fig.14, 15)

Absord the four soldered positions m of the right and left motors with a soldering absorber(See Fig.14).

Remove the two screws H retaining the mechanism control board(See Fig.14). Remove the two screws I retaining the tray select

3. switch board(See Fig.15).

Removing the can unit (See Fig.15 18 )

Remove the CD mechanism assembly.

While turning the cam gear L, align the pawl n position of the drive unit to the notch position(Fig.15) on the cam gear L. Pull out the drive unit and cylinder gear(See Fig.17).

3. While turning the cam gear L, align the pawl o position

4. of the select lever to the notch position(Fig.18) on the cam gear L. Remove the four screws J retaining the cam unit(cam

5. gear L and cams R1/R2 assembly)(See Fig.18).

Motor L

Mechanism control board

Fig.14

XV-M565BK/M567GD

Motor R

Chassis assembly

CN801

Fig.15

CN802

Drive unit

CD Tray switch board

Cylinder gear

CN804

Drive unit

Cam gear L

Fig.16

Cams R1, R2 assembly

Cam unit

Fig.17

Select lever

Fig.18

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XV-M565BK/M567GD

Removing the actuator motor and belt (See Fig.19 22)

Remove the two screws K retaining the gear bracket (See Fig.19).

While pressing the pawl p fixing the gear bracket in the arrow direction, remove the gear bracket (See Fig.19). From the notch q section on the chassis assembly fixing

3. the edge of gear bracket, remove and take out the gear bracket(See Fig. 20). Remove the belts respectively from the right and left

4. actuator motor pulleys and pulley gears(See Fig. 19). After turning over the chassis assembly, remove the

5. actuator motor while spreading the four pawls r fixing the right and left actuator motors in the arrow direction(See Fig. 21).

[Note]

When the chassis assembly is turned over under the conditions wherein the gear bracket and belt have been removed, then the pulley gear as well as the gear, etc. constituting the gear unit can possibly be separated to pieces. In such a case, assemble these parts by referring to the assembly and configuration diagram in Fig. 22.

Pulley gear

Gear bracket

Belt

Motor pulley

Fig.19

Actuator motor

Pulley gear

Belt

Motor pulley

Pawl

Chassis assembly

Gear bracket

Fig.20

Assembly and Configuration Diagram

Pulley gear

Fig.21

Pulley gear

Gear B

Cylinder gear

1-16

Gear B

Gear C

Select gear

Gross gear L

Fig.22

Gross gear U

Gear C

XV-M565BK/M567GD

Removing the cams R1/R2 assembly

and cam gear L (See Fig.23)

Remove the slit washer fixing the cams R1 and R2

1. assembly. By removing the two pawls s fixing the cam R1,

2. separate R2 from R1. Remove the slit washer fixing the cam gear L.

3. Pull out the cam gear L from the C.G. base assembly.

Removing the C.G. base assembly (See Fig.23 and 24)

Remove the three screws L retaining the C.G. base assembly.

[Caution]

To reassemble the cylinder gear, etc.with the

R1/R2

cam unit (cam gear and cams gear unit and drive unit, align the position of the pawl n on the drive unit to that of the notch on the cam gear L. Then, make sure that the gear unit is engaged by turning the cam gear L (See Fig. 24).

assembly),

Slit washer

Cam gear L

Slit washer

Cam R2

Pawl

Cam R1

Cam switch board

C.G. base assembly

Pawl

Notch

Pawl

Cylinder gear

Drive unit

Fig.23

Cam gear L

Cam R1, R2 assembly

Gear unit

Gear bracket

Fig.24

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XV-M565BK/M567GD

Removing the pickup unit

(See Fig.1 to 3)

Make sure to solder the flexible harness.(In case of replacement with a new product, unsolder the flexible harness after performing the following procedure.)

Disconnect the flexible harness from connector CN12 on the connection board.

The rack cover is attached to the feed drive shaft. Remove the two screws A attaching the connection board and stand the connection board. Remove the rack cover.

Remove the screw B attaching the pickup shaft holder. Remove the pickup shaft holder by releasing

ATTENTION:

Pull out the shaft in the direction of the arrow and slightly lift it with the pickup unit. Then, remove the pickup unit while pulling the rack a in the direction of the arrow.

Be careful not to lose the inside spring.

Connection board

CN12

Feed drive shaft

CN12

Fig.1

Rack cover

Flexible harness

Soldering (Short circuit round)

Connection board

1-18

Pickup unit

Rack a

Fig.2

Pickup shaft holder

Shaft

Fig.3

Tab

XV-M565BK/M567GD

Removing the Spindle Motor Assembly

(See Fig.4 to 8)

Unsolder the two parts b on the connection board.

Remove the screw C attaching the sensor holder and detach the sensor holder from the turn table bracket. Slacken and remove the flexible harness of the part c as shown in Fig.6. Pull up the hook d and remove the flexible harness from the sensor holder.

(When reattaching the sensor holder)

Let the flexible harness through the part c of the sensor holder and reattach it to the hook d correctly (See Fig.6).

Reattach the pin e of the sensor holder to the notch of the radial lever and reattach the sensor holder to the turn table bracket.

Remove the three screws D attaching the spindle motor assembly.

Release the tab by moving the spindle motor assembly to the tab, and remove the spindle motor assembly.

Sensor holder

*Part b - soldering

Fig.4

Spindle motor

ATTENTION:

Do not lose the spring of the shaft f by the tab.

It is not necessary to remove at the spindle motor unit exchange.

Turn table bracket

Fig.5

Hook d

Sensor holder

Flexible harness

Part c

Fig.6

Tab

Pin e

Radial lever

Fig.7Fig.8

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XV-M565BK/M567GD

Removing the connection board

(See Fig.9)

Disconnect the flexible harness from connector CN12 and CN13 on the connection board on the under side of the chassis.

Unsolder the two parts b (the red and black wires extending from the spindle motor) on the connection board.

Remove the two screws A attaching the connection board and detach the relay board.

Removing the feed motor assembly

(See Fig.10)

Part b -soldering

CN12

Feed motor assembly

Fig.9

CN13

Spindle motor

Prior to performing the following procedure, remove the connection board.

Unsolder the flexible harness g of the feed motor.

Remove the two screws E attaching the feed motor assembly and detach the feed motor assembly.

Fig.10

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Check points for each error

(1) Spindle start error

*Defective spindle motor Does the resistance between pins nos. 5 and 7 of CN102 register 6 to 10 ? (The power supply is turned off and measured.)

*Hall element: Is square wave output with the voltage of CN102 pin no. 2 during rotation?

In either case, replace the mechanical unit.

*Defective BTL driver (IC271) Is there a voltage output between pins nos. 5 and 7 of CN101?

Is IC271 "25" at "H" level (START)? Servo IC --- Is control signal sent to the motor driver ?

IC201 "120,121" : Duty is 50% during stop, but varies during rotation (greatly varies at start).

--- If not sent, pattern or servo IC (IC201) is defective.

Is FG input to servo IC ? Observe FG wave from IC271 "41". --- If not output, pattern, IC271 or IC201 is defective.

XV-M565BK/M567GD

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

* Laser is defective. * Front End Processor is defective (IC101). * APC circuit is defective. --- Q101. * Pattern is defective. --- Lines for CN101 "2,4,6" and "14".

Lines for between IC201 "2" and IC101 "2"(LDONA),

between IC201 "3" and IC101 "1" (LDONB). * Servo IC is defective (IC201). * Does signal flow to IC 101 pin no. 79 and output to (RFINP)? * IC101 --- For signal from IC101 to IC301, is signal output from IC101 "88" (TS1),

IC101 "69" (RFENV) and IC101 "90" (FS)?

(3) Traverse movement NG

* Traverse motor is defective.

Is there a voltage output between "1" to "6" and "3" to "4" of CN102?

* BTL driver is defective.

Is there a voltage output at Pins nos. "12,13,14" and "15" of IC271? The voltage of the MUTE2 terminal pin no. "25" of IC271 becomes (H). Is the driving voltage output on pin nos. "104" and "105" of the servo IC?

--- The servo IC defective or the patterns are incorrect.

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