JVC PC-X290 Service Manual

SERVICE MANUAL

CD PORTABLE COMPONENT SYSTEM

MB20020046

PC-X290

SERVICE POLICY

No service part is available for this model.
Exchange only.

VOLUME

-

STANDBY/ON

FM MODE

P

R

E

S

E

T

O

U

R

P

T

/

R

N

I

E

P

E

A

T

N

W

O

D

R

A

T

E

M

S

/

S

E

E

R

T

P

+

CD/

TUNER/

TAPE

RANDOM

H

B

S

/

Y

P

R

A

L

E

P

S

E

S

I

T

D

E

Q

BAND

PHONES

CD PORTABLE COMPONENT SYSTEM

STANDBY

SENSOR

P

R

TUNER/

CD/

TAPE

AUX

RANDOM

O

BAND

G

REC

SP-PCX290

A

PLAY

CD SYNCHRO RECORDING AUTO STOP SYSTEM

REC

CA-PCX290

STOP/EJECT

PLAY REW FF PAUSEPLAY REW FF

PAUSE

STOP/EJECT

PLAY

B

SP-PCX290

Area suffix

B ------------------------------ U.K.

TABLE OF CONTENTS

1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4

4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-12

5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-13

COPYRIGHT © 2004 Victor Company of Japan, Limited

No.MB200

2004/6

SPECIFICATION

Amplifier section-CA-PCX290 Output Power 5 W + 5 W at 3.2 Ω (10% THD)

Audio input sensitivity/Impedance (at 1 kHz) AUX: 1 000 mV/47 kΩ
Speakers/Impedance 3.2 Ω - 8 Ω

Tuner FM tuning range 87.5 MHz - 108.0 MHz

AM tuning range 522 kHz - 1 629 kHz

CD player CD Capacity 1 CD

Dynamic range 60 dB

Signal-to-noise ratio 75 dB

Cassette deck Frequency response Normal (type I): 50 Hz - 10 000 Hz

Wow and flutter 0.15% (WRMS)

General Power requirements AC 230 V , 50 Hz

DC 12 V ["R20(SUM-1)/D(13D)" batteries (8)]

Power consumption 20 W (at operation)

3 W (on standby)

Dimensions (approx.) 270 mm × 274 mm × 298 mm (W/H/D)

Mass (approx.) 4.1 kg

Speaker section-SP-PCX290 Type 2-way bass-reflex type

Speaker units Woofer: 10 cm cone x1

Tweeter: 5 cm cone x1

Power handling capacity 5 W

Impedance 3.2 Ω

Frequency range 50 Hz - 18 000 Hz

Dimensions (approx.) 180 mm × 270 mm × 228 mm (W/H/D)

Mass (approx.) 1.7 kg each

Design and specifications subject to change without notice.

1-2 (No.MB200)

SECTION 1

PRECAUTION

This service manual does not describe PRECAUTION.

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

(No.MB200)1-3

SECTION 3

A

DISASSEMBLY

3.1 Main body

3.1.1 Removing the front cabinet section and rear cabinet
section (See Fig.1 to 6)

(1) Remove the five screws A and the five screws B on the

back of the body.
(2) Remove the screw D on each side of the body.
(3) Move the rear cabinet backward, and disconnect the an-

tenna wire from the antenna terminal on the inside of the

rear cabinet.
(4) Disconnect the wire from connector CN401

board on the front cabinet section.

on the main

B

B

D

A

Rear cabinet section

D

Fig.1

A

A

B

Rear cabinet section

ntenna terminal

CN401

Front cabinet section

Fig.3

Front cabinet section

CN401

Rear cabinet section

Fig.4

Main board

1-4 (No.MB200)

Fig.2

Fig.5

Antenna terminar

Rear cabinet sectionFront cabinet section

Antenna wire

Fig.6

3.2 Front cabinet section

• Prior to performing the following procedure, remove the front cabinet section and rear cabinet section.

3.2.1 Removing the CD assembly section (See Fig.7 to 11)

(1) Disconnect the wires from connector CN201

on the main board.

CN203

(2) Disconnect the wire from connector CN402

board.

(3) Remove the two screws E and the two screws F attaching

the CD assembly section.

(4) Remove the five screws G attaching the LED board on the

front side of the CD assembly section.

(5) Move the CD assembly section from the front cabinet sec-

tion backward. Disconnect the card wire from connector

on the LED board.

CN601

, CN202 and

on the main

Front cabinet section

LED board

Fig.10

CD assembly section

CD assembly section

Main board

G

Main boardh

Main board
CN402

CN203

CN202

Fig.7

Fig.8

CD assembly

CN201

LED board
CN601

Fig.11

EE

G

F

LED board

Fig.9

(No.MB200)1-5

3.2.2 Removing the LED board / main board (See Fig.2 to 16)

• Prior to performing the following procedure, remove the CD as­sembly section.

Caution:

Make sure to solder the short-circuit point on the CD servo
board before disconnecting the card wire from connector

on the main board and from the CD servo board. If you

CN301

don’ t observe this instruction, the pickup may be damaged.
(1) Remove the two screws H attaching the LED board.
(2) Remove the three screws J attaching the main board.
(3) Push each tab of the main board inward and remove the

main board.

(4) Move the main board and the LED board as shown in

Fig.14, and solder the short-circuit point on the CD servo
board inside the CD assembly section.

(5) Disconnect the card wire from connector CN301

main board.

(6) Disconnect the wire from the door switch at the bottom of

the CD assembly section.

Caution:

When reassembling the main board, make sure to unsolder
the short-circuit point after connecting the card wire to connec­tor CN 301

and the CD servo board.

on the

LED board

H

CD assembly sectionav

LED board

Fig.12

H

Main board

J

1-6 (No.MB200)

Main board

Ta b

Fig.13