JVC KS-FX711 Manuel utilisateur

SERVICE MANUAL

CASSETTE RECEIVER

No.49713

Mar. 2002

KS-FX711/KS-FX511

Area Suffix

U Other areas

Contents

Safety precaution

Disassembly method

Adjustment method

Description of major ICs

1-2

1-3

1-18

1-22

CD CHANGER CONTROL

SEL

FM/AM

CD-

SCM

MODE

78910 11 12

RND

RPT

Multi

Music

Scan

KS-FX711

CD CHANGER CONTROL

SEL

FM/AM

CD-

SCM

MODE

78910 11 12

RND

RPT

Multi

Music

Scan

KS-FX511

KS-FX711

KS-FX511

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1-2

KS-FX711/KS-FX511

!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.

Safety precaution

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1-3

KS-FX711/KS-FX511

Press the eject button in the lower right part of the

front panel. Remove the front panel assembly from

the body.

Removing the front panel assembly

(See Fig.1)

Prior to performing the following procedure, remove

the front panel assembly.

Release the four joint tabs aon both sides of the

front chassis assembly and remove the front chassis

assembly toward the front.

Removing the front chassis assembly

(See Fig.2 and 3)

Disassembly method

Fig.1

Fig.2

Fig.3

Front panel assembly Eject button

Tab a

Front chassis assembly

Front chassis

assembly

Heat sink Tab a

Tab a

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1-4

KS-FX711/KS-FX511

Remove the three screws Aon the left side of the

body.

Removing the heat sink (See Fig.4)

Prior to performing the following procedure, remove

the front panel assembly, the front chassis assembly

and the heat sink.

Turn over the body and unjoint the four joints band

joints cwith the bottom cover and the body using a

screwdriver.

Removing the bottom cover

(See Fig.5 and 6)

When disengaging the joint cusing a

screwdriver, do not damage or break the

board.

CAUTION:

Fig.4

Fig.5

Fig.6

Heat sink

Joints b

Joint c

Joints c

Joints b

Joint c

Bottom cover

Rear panel

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1-5

KS-FX711/KS-FX511

Prior to performing the following procedure, remove

the front panel assembly, the front chassis assembly,

the heat sink and the bottom cover.

Remove the screw B, the five screws C and the two

screws Dattaching the rear bracket on the back of

the body. Remove the rear bracket.

Removing the main board (See Fig.7)

Prior to performing the following procedure, remove

the front chassis, the heat sink, bottom cover and the

main amplifier board assembly.

Remove the four screws Fattaching the cassette

mechanism assembly from the top cover.

Removing the cassette mechanism assembly

(See Fig.9)

Prior to performing the following procedure, remove

the front chassis, the heat sink, bottom cover and the

rear panel.

Remove the two screws E attaching the main

amplifier board assembly on the top cover.

Disconnect connector CP701 on the main amplifier

board assembly from the cassette mechanism

assembly.

Removing the main amplifier board assembly

(See Fig.8)

Fig.7

Fig.8

Fig.9

Rear bracket B

Main board

CN701

Cassette mechanism assembly

FF Top chassis

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1-6

KS-FX711/KS-FX511

Prior to performing the following procedure, remove

the front panel assembly.

Remove the four screws Gattaching the rear cover

on the back of the front panel assembly.

Unjoint the eleven joints dwith the front panel and

the rear cover.

Remove the control switch board on the back of the

front panel.

Removing the control switch board

(See Fig.10 to 12)

Fig.10

Fig.11

Fig.12

Rear cover

Joints d

Front panel

Rear cover

Control switch board

Front panel

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1-7

KS-FX711/KS-FX511

Turn the mode gear to set to RVS play or

subsequent mode.

Remove the cassette guide from the main chassis

while releasing each two joint tabs ain the direction

of the arrow.

Removing the cassette guide (See Fig.2)

Prior to performing the following

procedures, turn the mode gear on the

bottom of the body until the respective part

comes to the EJECT position (Refer to

Fig.1).

REFERENCE:

Remove the E-washer attaching the load arm.

Move the load arm in the direction of the arrow and

release the joint bon the cassette catch.

Removing the load arm (See Fig.3)

Fig.1

Fig.2

Mode gear

Cassette guide

Tab a

Fig.3

Load arm

E-washer

Joint b

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1-8

KS-FX711/KS-FX511

Check the mode is set to EJECT. Push down the

front part of the cassette holder and move in the

direction of the arrow to release the joint c.

Move the rear part of the cassette hanger assembly

in the direction of the arrow to release it from the two

joint bosses d.

Release the holder stabilizer spring from the hooks e

and f, then pull out from the cassette hanger

assembly.

Bring up the rear side of the cassette hanger

assembly to release the joint g and h.

Pull out the cassette catch from the cassette hanger

assembly.

Removing the cassette hanger assembly /

cassette holder (See Fig.4 to 7)

Fig.4

Fig.5

Fig.7

Fig.6

Cassette holder assembly

Side bracket

Joints c

Cassette holder assembly

Cassette hanger assembly

Cassette hanger

assembly

Boss d

Cassette hanger assembly

Cassette stabilizer spring

Hook f

Hook h

Hook e

Hook g

Cassette holder

assembly Cassette catch

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1-9

KS-FX711/KS-FX511

Remove the screw Aattaching the side bracket

assembly.

Detach the front side of the side bracket assembly

upward and pull out forward to release the joint iand

jin the rear.

Removing the side bracket assembly

(See Fig.8 to 10)

When reassembling, make sure that the

boss kof the main chassis is set in the

notch of the load rack under the side

bracket assembly. Do not reattach the

load rack on the boss k.

CAUTION:

After reattaching the side bracket

assembly, confirm operation.

CAUTION:

Fig.9

Fig.10

Fig.8

Side bracket assembly

Joint i

Joint j

Side bracket assembly

Boss k

Load rack

Boss k

Load rack

Joint i

Joint j

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1-10

KS-FX711/KS-FX511

Remove the polywasher and pull out the pinch arm

(F) assembly.

Remove the compulsion spring.

Removing the pinch arm (F) assembly

(See Fig.11 and 12)

Remove the polywasher and pull out the pinch arm

(R) assembly.

Removing the pinch arm (R) assembly

(See Fig.11 and 13)

Move the slide chassis assembly in the direction of

the arrow to release the two joints land remove from

the main chassis.

Remove the rack link.

Removing the slide chassis assembly

(See Fig.14 and 15)

When reassembling, first reattach the rack

link, and next fit the boss mand hook nof

the slide chassis assembly to the hole of

the main chassis, and engage the two joints

CAUTION:

It is not necessary to remove the head

and the tape guide.

REFERENCE:

Fig.11

Fig.15

Fig.12

Fig.13

Fig.14

Polywasher

Polywasher Pinch arm

(F) assembly

Pinch arm

(R) assembly

Polywasher

Pinch arm (F) assembly

Compulsion spring

Pinch arm

(R) assembly Polywasher

Slide chassis assembly

Joint l

Boss m

Hook n

Rack link

Head

Tape guide

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