JVC FSJ60/UC - Service Manual Immediate Download

SERVICE MANUAL

No.22052

2003/4

FS-J60

COMPACT COMPONENT SYSTEM

22052

2003

FS-J60

TABLE OF CONTENTS

Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-18

Description of major ICs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-24

SP-UXJ60

CA-FSJ60

RM - SFSJ60U REMOTE CONTROL

SP-UXJ60

Area Suffix

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

FS-J60

1-2 (No.22052)

SECTION 1

Important Safety Precautions

1.1 Safety Precautions

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

many circuits and components specially for safety purposes.

For continued protection, no changes should be made to the

original design unless authorized in writing by the man-

ufacturer. Replacement parts must be identical to those

used in the original circuits. Services should be per-

formed by qualified personnel only.

(2) Alterations of the design or circuitry of the product should

not be made. Any design alterations of the product should

not be made. Any design alterations or additions will void

the manufacturers warranty and will further relieve the

manufacture of responsibility for personal injury or property

damage resulting therefrom.

(3) Many electrical and mechanical parts in the products have

special safety-related characteristics. These characteris-

tics are often not evident from visual inspection nor can the

protection afforded by them necessarily be obtained by us-

ing replacement components rated for higher voltage, watt-

age, etc. Replacement parts which have these special safety

characteristics are identified in the Parts List of Service Manu-

al. Electrical components having such features are iden-

tified by shading on the schematics and by ( ) on the

Parts List in the Service Manual. The use of a substitute re-

placement which does not have the same safety character-

istics as the recommended replacement parts shown in the

Parts List of Service Manual may create shock, fire, or oth-

er hazards.

(4) The leads in the products are routed and dressed with ties,

clamps, tubings, barriers and the like to be separated from

live parts, high temperature parts, moving parts and/or

sharp edges for the prevention of electric shock and fire

hazard. When service is required, the original lead routing

and dress should be observed, and it should be confirmed

that they have been returned to normal, after reassembling.

(5) Leakage shock hazard testing)

After reassembling the product, always perform an isolation

check on the exposed metal parts of the product (antenna

terminals, knobs, metal cabinet, screw heads, headphone

jack, control shafts, etc.) to be sure the product is safe to

operate without danger of electrical shock.

Do not use a line isolation transformer during this check.

· Plug the AC line cord directly into the AC outlet. Using a

"Leakage Current Tester", measure the leakage current

from each exposed metal parts of the cabinet, particular-

ly any exposed metal part having a return path to the

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

rent must not exceed 0.5mA AC (r.m.s.).

· Alternate check method

Plug the AC line cord directly into the AC outlet. Use an AC

voltmeter having, 1,000 ohms per volt or more sensitivity in

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

paralleled by a 0.15 µF AC-type capacitor between an

exposed metal part and a known good earth ground.

Measure the AC voltage across the resistor with the AC

voltmeter.

Move the resistor connection to each exposed metal part,

particularly any exposed metal part having a return path to

the chassis, and measure the AC voltage across the resistor.

Now, reverse the plug in the AC outlet and repeat each

measurement. Voltage measured any must not exceed 0.75

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

1.2 Warning

(1) This equipment has been designed and manufactured to

meet international safety standards.

(2) It is the legal responsibility of the repairer to ensure that

these safety standards are maintained.

(3) Repairs must be made in accordance with the relevant

safety standards.

(4) It is essential that safety critical components are replaced

by approved parts.

(5) If mains voltage selector is provided, check setting for local

voltage.

1.3 Caution

Burrs formed during molding may be left over on some parts

of the chassis.

Therefore, pay attention to such burrs in the case of pre-

forming repair of this system.

1.4 Critical parts for safety

In regard with component parts appearing on the silk-screen

printed side (parts side) of the PWB diagrams, the parts that are

printed over with black such as the resistor (

), diode (

)

and ICP (

) or identified by the "

" mark nearby are critical

for safety.

When replacing them, be sure to use the parts of the same type

and rating as specified by the manufacturer. (Except the JC version)

FS-J60

(No.22052)1-3

1.5 Importance administering point on the safety

Caution: For continued protection against risk of

fire, replace only with same type 2.5A/125V for

F1000, 5A/125V for F1001, 4A/125V for F1003 and

F1004.

This symbol specifies type of fast operating fuse.

Precaution: Pour eviter risques de feux, remplacez

le fusible de surete de F1000 comme le meme type

que 2.5A/125V, de F1001 que 5A/125V, et 4A/125V

pour F1003 et F1004.

Ce sont des fusibles suretes qui functionnes rapide.

C1000

C1001

C1002

C1003

C1004

C1005

C1006

C1007

C1008

C1009

C1010

Q1003

C1012

B1221

T1000

B1170

B1161

B1210

B1220

D1000

D1001

D1002

D1003

D1004

D1005

D1006

D1007

D1008

D1009

C1011

D1011

D1012

D1013

J1000

L1000

Q1000

Q1001

Q1002

R1000

R1001

R1002

R1003

R1004

R1005

RY940

S1000

T1001

Z1000

Z1001

Z1002

Z1003

Z1004

Z1005

EP940

B1160

B1131

B1130

B1142

B1141

FW950

B1143

R1010

B1192

B1203

CN951

B1144

D1014

C1014

R1011

Z1006

Z1007

Z1009

Z1008

R1012

B1134

B1133

B1135

B1182

B1190

B1126

B1200

B1132

B1123

B1122

B1124

B1125

FS-J60

1-4 (No.22052)

1.6 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.

1.6.1

Grounding to prevent damage by static electricity

Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.

Be careful to use proper grounding in the area where repairs are being performed.

(1) Ground the workbench

Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the

traverse unit (optical pickup) on it.

(2) Ground yourself

Use an anti-static wrist strap to release any static electricity built up in your body.

(3) Handling the optical pickup

· In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical

pickup are shorted. After replacement, return the shorted parts to their original condition.

(Refer to the text.)

· Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily

destroy the laser diode.

1.7 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 replace-

ment procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time

when attaching it to the connector.

(3) Handle the flexible cable carefully as it may break when subjected to strong force.

(4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.8 Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for the CD pickup unit.

· Apply solder to the short land sections before the flexible wire is disconnected from the connector CN101 on the CD servo board.

(If the flexible wire is disconnected without applying solder, the CD pickup may be destroyed by static electricity.)

· In the assembly, be sure to remove solder from the short land sections after connecting the flexible wire.

CN601 on

mechanism

board

Shorting round

Flexible wire

FS-J60

(No.22052)1-5

SECTION 2

Disassembly method

2.1 Main body

2.1.1 Removing the metal cover

(See Fig.1~3)

(1) Remove the six screws A on the back of the main body.

(2) Remove the two screws B on each side and remove the

metal cover in the direction of the arrow.

Fig.1

Fig.2

Fig.3

Metal cover