JVC MX-KC45E Manuale utente

SERVICE MANUAL

2006/7

COMPACT COMPONENT SYSTEM

MB55020067

MX-KC45E,MX-KC45EN,

MX-KC45A,MX-KC45UW,

MX-KC45UY,MX-KC45UJ

Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)

TABLE OF CONTENTS

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

2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5

3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6

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

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

CA-MXKC45 SP-MXKC45SP-MXKC45

1-2 (No.MB550)

SPECIFICATION

Design and specifications are subject to change without notice.

Amplifier Output Power (IEC 268-3) 155 W per channel, min. RMS, driven into 6 Ωat 1kHz, with no

more than 10% total harmonic distortion

(DIN-3) 125 W per channel, min. RMS, driven into 6 Ωat 1kHz, with no

more than 0.9% total harmonic distortion

Input Sensitivity/

Impedance (1 kHz)

AUX IN

Speaker terminals

400 mV/50 kΩ

6 Ω- 16 Ω

Phones 32 Ω- 1 kΩ

17 mW/ch output into 32 Ω

Cassette Deck Section Frequency Response : Type I (NORMAL) 63 Hz - 12 500 Hz

Wow And Flutter 0.15% (WRMS)

CD Player CD Capacity 3 CDs

Dynamic Range 85 dB

Signal-To-Noise Ratio 85 dB

Wow And Flutter Unmeasurable

Tuner FM Tuner : Tuning Range 87.50 MHz - 108.00 MHz

87.50 MHz - 108.00 MHz (at AM9 kHz channel space)

87.5 MHz - 108.0 MHz (at AM10 kHz channel space)

AM Tuner : Tuning Range 522 kHz - 1710 kHz

522 kHz - 1 629 kHz (for Europe)

531 kHz - 1710 kHz (at AM9 kHz channel space)

530 kHz - 1710 kHz (at AM10 kHz channel space)

Unit Dimensions 270 mm ×307 mm ×492 mm (W/H/D)

Mass Approx. 9.3 kg

Speaker Specifications

(each unit)

Type 3-way bass-reflex type

Speaker Unit Woofer 16 cm cone ×1

Mid 5cm cone ×1

Tweeter 2cm dome ×1

Power Handling Capacity 160 W

Impedance 6 Ω

Frequency Range 45 Hz - 22 000 Hz

Sound pressure level 87 dB/W·m

Dimensions 220 mm ×324 mm ×238 mm (W/H/D)

Mass Approx. 3.6 kg

Power Specifications Power Requirements AC 240 V , 50 Hz (for Australia)

AC 230 V , 50 Hz (for Europe)

AC 110 V-127 V/220 V-240 V , adjustable with voltage selector,

50 Hz/60 Hz (for Asia)

Power Consumption 165 W (power on mode)

23 W (in Standby mode)

1 W (in ECO mode)

(No.MB550)1-3

SECTION 1

PRECAUTION

1.1 Safety Precautions

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

many circuits and components specially for safety purpos-

es. 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 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 Ser-

vice 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 charac-

teristics 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 reassem-

bling.

(5) Leakage shock hazard testing

After reassembling the product, always perform an isola-

tion check on the exposed metal parts of the product (an-

tenna 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, 1,000Ωper volt or more sensitivity

in the following manner. Connect a 1,500Ω10W resistor

paralleled by a 0.15µF AC-type capacitor between an ex-

posed 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.

(This regulation dose not Except the J and C version)

Good earth ground

Place this

probe on

each exposed

metal part.

AC VOLTMETER

(Having 1000

ohms/volts,

or more sensitivity)

1500 10W

0.15 F AC TYPE

1-4 (No.MB550)

1.5 Important for laser products

1.CLASS 1 LASER PRODUCT

2.CAUTION :

(For U.S.A.) Visible and/or invisible class II laser radiation

when open. Do not stare into beam.

(Others) Visible and/or invisible class 1M laser radiation

when open. Do not view directly with optical instruments.

3.CAUTION : Visible and/or invisible laser radiation when

open and inter lock failed or defeated. Avoid direct

exposure to beam.

4.CAUTION : This laser product uses visible and/or invisible

laser radiation and is equipped with safety switches which

prevent emission of radiation when the drawer is open and

the safety interlocks have failed or are defeated. 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 here in may result in

hazardous radiation exposure.

REPRODUCTION AND POSITION OF LABELS and PRINT

!Please use enough caution not to

see the beam directly or touch it

in case of an adjustment or operation

check.

WARNING LABEL and PRINT

(No.MB550)1-5

SECTION 2

SPECIFIC SERVICE INSTRUCTIONS

This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.

1-6 (No.MB550)

SECTION 3

DISASSEMBLY

3.1 Main Body

3.1.1 Removing the metal cover

(See Fig.1, 2)

(1) Remove the two screws Aand four screws Battaching the

metal cover from both side of the main body. (See Fig.1)

(2) Remove the six screws Cattaching the metal cover from

back side of main body. (See Fig.2)

3.1.2 Removing the heat sink cover

(See Fig.2, 3)

(1) Disconnect the connector wire from the fan connected to

connector CN603 of the amp board. (See Fig.3)

(2) Remove the four screws Dattaching the heat sink cover.

(See Fig.2)

3.1.3 Removing the fan

(See Fig.2)

(1) Remove the four screws Eattaching the fan.

Fig.1

Fig.2

Fig.3

(both side)

CE E C

DDE

CN601

CN603

(No.MB550)1-7

3.1.4 Removing the 3CD changer mechanism

(See Fig.3 to 7)

(1) Disconnect the card wire from amp board connected to the

connector CN601 of the main board. (See Fig.3)

(2) Disconnect the card wire from the tuner pack connected to

the connector CN306 of the main board. (See Fig.4)

(3) Open the CD tray and remove the CD door.

Caution:

If the CD tray can not open at power to ON condition, ro-

tate the gear and open the CD tray. (See Fig.5)

(4) Disconnect the card wire connected to the connector

CN201 and CN303 of the main board. (See Fig.6)

(5) Disconnect the connector wire connected to the connector

CN301 and CN302 of the main board. (See Fig.6)

(6) Remove the two screws Fattaching the 3CD changer

mechanism of back side of the main body. (See Fig.7)

(7) Remove the four screws Gattaching the 3CD changer

mechanism from both side of the main body. (See Fig.3, 4)

Fig.4

Fig.5

Fig.6

Fig.7

CN306

GEAR (top view)

CN303

CN302 CN301

CN201

1-8 (No.MB550)

3.1.5 Removing the main board

(See Fig.6, 8, 9)

(1) Remove the six screws Hattaching the main board. (See

Fig.6)

(2) Disconnect the connector wire connected to the connector

CW3 of the motor board. (See Fig.8)

(3) Disconnect the connector wire connected to the connector

of the traverse mechanism. (See Fig.8)

(4) Solder the short land section of the CD pickup and then dis-

connected the card wire from the main board connected to

the CD pickup. (See Fig.9)

Caution:

• Solder the short land section of the CD pickup before discon-

necting the card wire from the connector on the CD pickup.

If the card wire is disconnected without attaching the sol-

ders, the pickup may be destroyed by static electricity.

• When attaching the CD pickup, be sure to remove solders

from the short land section after connecting the card wire to

the connector on the CD pickup.

Fig.8

Fig.9

connector wire

CW3

traverse mechanism

motor board

short land section

(No.MB550)1-9

3.1.6 Removing the tuner pack

(See Fig.11)

(1) Remove the two screws Jattaching the tuner pack.

3.1.7 Removing the amp board

(See Fig.10, 11)

(1) Disconnect the connector wire from the front board con-

nected to the connector CN202 of the amp board. (See

Fig.10)

(2) Disconnect the connector wires from the power transform-

er connected to the connector CN902 and CN903 of the

amp board. (See Fig.10)

(3) Remove the four screws Kattaching the amp board. (See

Fig.11)

(4) Remove the three screws Lattaching the amp board. (See

Fig.11)

3.1.8 Removing the voltage selector board

(See Fig.11)

(1) Remove the two screws Mattaching the voltage selector

board.

3.1.9 Removing the rear panel

(See Fig.11)

(1) Remove the four screws Nattaching the rear panel.

Fig.10

Fig.11

CN202 CN903CN902

1-10 (No.MB550)

3.1.10 Removing the front panel assembly

(See Fig.3, 4, 12, 13)

(1) Disconnect the two earth wires from the bottom plate. (See

Fig.12)

(2) Remove the one screw Pattaching the front panel assem-

bly from bottom side. (See Fig.13)

(3) Remove the two screws Qattaching the front panel assem-

bly from both side of the main body. (See Fig.4)

(4) Disengage the hook aon the both side of the front panel

assembly. (See Fig.3)

Fig.12

Fig.13

earth wire

Questo manuale è adatto per i seguenti modelli

Indice

Manuali Sistema di altoparlanti popolari di altre marche

LG NB4532B Manuale utente

5Core

5Core Pro Series Manuale utente

EAW

EAW MQV1394e Manuale utente

Lynx

Lynx GXR-LA10A Manuale utente

iLive

iLive ITB066B Manuale utente

RDX

RDX QuickStation 4 Manuale utente

Electro-Voice

Electro-Voice S-122 Manuale utente

Sven

Sven SPS-619 GOLD Manuale utente

Pioneer

Pioneer CS-7070 Manuale utente

EAW

EAW UB82e Manuale utente

Sondpex

Sondpex Active Speaker System and Digital Music... Manuale utente

Marshall Amplification

Marshall Amplification AR-DM61-BT Manuale utente

Yamaha

Yamaha NX-A01 - Speaker Sys Manuale utente

SE Audiotechnik

SE Audiotechnik I-LINE Manuale utente

Gemini

Gemini WRX-843 Series Manuale utente

TCL

TCL 6100 Series Manuale utente

JBL

JBL gto6506c Manuale utente

Legacy

Legacy FOCUS SE Manuale utente