JVC MXK-50-R Service manual

SERVICE MANUAL

COMPACT COMPONENT SYSTEM

MX-K50R

Area suffix

B ------------------------ U.K.
E ---- Continental Europe
EN ----- Northern Europe
EV ------- Eastern Europe

MX-K50R

STANDBY/ON

12

3

ACTIVE BASS

EX.

L

EVE

L

SLEEP

456

S

O

UND

AUX

O

DE

M

78

9

FM MODE

+10

10

DISPLAY

–

SELECT +

PTY/EON

O

DE

M

FADE

FM/AM

T

APE

T

APE A/B

MUTIN

G

DISC

CD

SKIP

+

VOL

UME

VOL

UME

–

RM–SMXK50R R EMOT

E CONTROL

SP-MXK50

Contents

Safety Precautions
Important for laser products
Preventing static electricity
Disassembly method
Wiring connection
Adjustment method

STANDB

Y

STANDBY/ON

ACTIVE BASS EXTENSION

AUX

PHONES

ECO

FM
/ AM

PROGRAMRANDO

R

EPEAT

REC STAR

T

/STO

P

1-2
1-4
1-5
1-6
1-18
1-19

3

CD

MX-K50R

CLOCK
/TIMER

DISPLAY

CD

T

APE

TAPE BTAPE

A

C

D REC

DUBBING

START

FULL - LOGIC CONTROL

M

ACTIVE BA

E

X. LEVE

DISPLA

Y MOD

E

–

SELECT +

PTY/EO

N

CD SYNCHRO RECORDIN

CA-MXK50R

Flow of functional operation
until TOC read
Maintenance of laser pickup
Replacement of laser pickup
Trouble shooting
Description of major ICs

DISC CHANGE

2

1

D 3

D

D

C

C

C

CD-R/RW PLAYBACK

SOUND

M

ODE

SS

L

G

SP-MXK50

1-23
1-24
1-24
1-25
1-28~41

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

No.21122

Aug. 2002

MX-K50R

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 circuitr y 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 par ts 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 each exposed 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.

!

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 m ust 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 v oltage.

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.

In regard with component parts appearing on the silk-screen pr inted 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.

(This regulation does not correspond to J and C version.)

1-2

MX-K50R

(U.K only)

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.

2. Any unauthorised design alterations or additions will void the manufacturer's guarantee ; further more the
manufacturer cannot accept responsibility f or personal injury or property damage resulting therefrom.

3. Essential safety critical components are identified by ( ) on the Parts List and by shading on the
schematics, and must never be replaced by parts other than those listed in the manual. Please note

however that many electrical and mechanical parts in the product have special safety related
characteristics. These characteristics are often not evident from visual inspection. Parts other than
specified by the manufacturer may not have the same safety characteristics as the recommended
replacement parts shown in the Parts List of the Service Manual and 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 or iginal lead
routing and dress should be observed, and it should be confirmed that they have been returned
to normal, after re-assembling.

1. Service should be performed by qualified personnel only.

2. This equipment has been designed and manufactured to meet international safety standards.

3. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

4. Repairs must be made in accordance with the relevant safety standards.

5. It is essential that safety critical components are replaced by approved parts.

6. 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.

1-3

MX-K50R

Important for laser products

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 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 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.

Position of labels

CLASS 1
LASER PRODUCT

WARNING LABEL

1-4

Preventing static electricity

MX-K50R

1. Grounding to prevent damage by 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.

2. About the earth processing for the destruction prevention by static electricity

In the equipment which uses optical pick-up (laser diode), optical pick-up is destroyed by the static electricity of
the work environment.
Be careful to use proper grounding in the area where repairs are being performed.

2-1 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.

2-2 Ground yourself

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

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.

4. 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

Attention when CD mechanism assembly is decomposed

*Please refer to "Disassembly method" in the text for pick-up and how to
detach the CD mechanism assembly.

1. Remove the CD changer unit.

2. Remove the CD changer mechanism.

3. Solder is put up before the card wire is removed from the pickup unit
connector on the CD mechanism assembly.
(When the card wire is removed without putting up solder, the CD pick-up
assembly might destroy.)

4. Please remove solder after connecting the card wire with the pickup unit
connector when you install picking up in the substrate.

Card wire

Picup unit
connector

Soldering

Fig.2

CD changer unit

Fig.1

Card wire

Picup unit
connector

CD changer
mechanism

1-5

MX-K50R

Disassembly method

Removing the metal cover (See Fig.1)

1.

Remove the three screws A attaching the metal
cover on the back of the body.

2.

Remove the six screws B attaching the metal cover
on both sides of the body.

3.

Remove the metal cover from the body by lifting the
rear part of the cover.

ONE POINT

How to eject the CD tray (see fig.2)

Although it will end if the OPEN/CLOSE
button is pushed when a power supply can
be taken, when that is not right, CD tray will
be opened manually.
Turn the loading pulley gear at the bottom of
the CD changer unit as shown in Fig.2 and
draw the CD tray toward the front.

Metal cover

A

B

(both sides)

Fig.1

Loading pulley gear
(See <CD changer unit>fig.1)

Removing the CD tray fitting

(See Fig. 3)

Prior to performing the following procedure, eject the
CD tray.

After drawing the lower part of the tray fitting toward

1.
the front, remove the five claws. Then, while moving
the tray fitting upward, remove it.

Removing the CD changer unit

(See Fig.4 to 7)

Prior to performing the following procedure, remove
the metal cover and CD tray fitting.

1.

Remove the card wire attached to CD changer unit
on the adhesion tape.

2.

Disconnect the card wire from the connector CW105
on the CD board.

3.

Disconnect the harness from the connector RCW6
on the main board and CW107 on the CD board.

4.

Remove the two screws C attaching the CD changer
unit to the rear panel.

Fig.2

Joint

CD tray fitting

Claw

Fig.3

Card wire

CD changer unit

5.

Remove the two screws D attaching the CD changer
unit to both sides of the front panel assembly.

6.

Draw the CD changer unit upward from behind while
pulling the rear panel outward.

1-6

Adhesion tape

Fig.4

MX-K50R

CW105
CW107

Fig.5

CD board

CD changer unit

Main board

RCW6

Front panel

assembly

D

(both sides)

C

Rear panel

Fig.6

CD changer unit

Rear panel

Fig.7

Removing the front panel assembly

(See Fig.8 to 10)

Prior to performing the following procedure, remove
the metal cover and the CD changer unit.

1.

Disconnect the card wire from the connector FCW3
on the main board.

2.

Disconnect the harness from the connector JCW1,
JCW2 and HCW3 on the main board.

3.

Remove the screw E attaching the earth terminal
extending from the cassette mechanism assembly.

4.

Remove the two screws F attaching the front panel
assembly to both sides of the body.

5.

Remove the screw G attaching the main board to the
front panel assembly.

6.

Remove the screw H attaching the front panel
assembly to bottom of the body.

7.

Release the two joints1 and two joints2, and detach
the front panel assembly toward the front.

Front panel

assembly

Joint1
(both sides)

(both sides)

FCW3

F

JCW2

JCW1

Fig.8

Main board

Main board

HCW3

E

(fixing the earth wire)

ACW1

ACW2

Amp. board

Front panel
assembly

G

Fig.9

Joint1
(both sides)

F

(both sides)

1-7

MX-K50R

Removing the heat sink & amp. board

(See Fig.8, 11 and 12)

Prior to performing the following procedure, remove
the metal cover and the CD changer unit.

1.

Disconnect the card wire from the connector ACW1
and the harness from the connector ACW2 on the
amp. board.

2.

Remove the four screws I attaching the heat sink
cover to the rear panel. Remove the heat sink cover.

3.

Remove the four screws J attaching the heat sink
and two screws K attaching the speaker terminal to
the rear panel.

4.

After moving the heat sink upward, remove the
claws. Then pull out the heat sink & amp. board
inward.

H

Heat sink

cover

Joint2

Fig.10

(Bottom side)

Rear panel

I

I

Removing the tuner board
(See Fig.12 and 13)

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

1.

Disconnect the card wire from the connector CON01
on the tuner board.

2.

Remove the two screws L attaching the tuner board
to the rear panel.

Removing the EOC board
(See Fig.12 and 13)

Prior to performing the following procedure, remove
the metal cover, CD changer unit and heat sink &
amp. board.

1.

Disconnect the power cord from the connector PJ2
on the ECO board.

2.

Disconnect the harness from the connector PJ3 and
RCW5 on the ECO board.

3.

Remove the two screws M attaching the ECO board
to the rear panel.

J

Heat sink

J

O

Rear panel

Tuner board

Fig.11

Rear panel

L

N

K

Speaker
terminal

M

Fig.12

ECO board

Removing the rear panel (See Fig.12)

Prior to performing the following procedure, remove
the metal cover, CD changer unit, heat sink & amp.
board, tuner board and ECO board.

1.

Remove the two screws N and three screws O
attaching the rear panel.

1-8

RCW5
PJ2

PJ3

Main board

CON01

Fig.13

MX-K50R

Removing the main board (See Fig. 14)

Prior to performing the following procedure, remove
the metal cover, CD changer unit and rear panel.

1.

Disconnect the card wire from the connector FCW3
and the harness from the connector JCW1, JCW2
and HCW3 on the main board.

2.

Disconnect the harness from the connector PCW1
on the fuse board.

3.

Remove the screw G attaching the main board
holder to the front panel assembly. (See Fig.9)

4.

Remove the two screws P attaching the heat sink to
bottom chassis.

Removing the power cord (See Fig. 14)

Prior to performing the following procedure, remove
the metal cover, CD changer unit and rear panel.

1.

Disconnect the power cord from the connector PJ2
on the ECO board (see fig.13) and pull up the power
cord stopper upward.

Fuse board

PCW1

Trans. board

RCW1

Power cord

stopper

Bottom chassis

Power IC solder point

Fig.14

FCW3

JCW2

Heat sink

JCW1

Main board

HCW3

Heat sink

P

Power cord

Amp. board
(reverse side)

Removing the power IC

(See Fig.15 and 16)

Prior to performing the following procedure, remove
the metal cover, CD changer unit and heat sink &
amp. board.

1.

Unsolder the power IC solder point.

2.

Remove the two screws Q attaching the power IC to
the heat sink.

Removing the power transformer

(See Fig .17)

Prior to performing the following procedure, remove
the metal cover, CD changer unit and heat sink &
amp. board.

1.

Disconnect the power cord from the connector RCW1
on the trans. board.

2.

Disconnect the harness from the connector PCW1 on
the fuse board.

R

Bottom chassis

Fig.15

Q

Fig.16

Power transformer

Heat sink

Amp. board

PCW1

Fuse board

Trans. board

RCW1

3.

Remove the four screws R attaching the power
transformer on the bottom chassis.

Fig.17

1-9

MX-K50R

<Front panel assembly>

Prior to performing the following procedure, remove
the metal cover, the CD changer unit and the front
panel assembly.

Removing the CD switch board
(See Fig.1)

1.

Disconnect the card wire from the connector UCW1
on the switch board.

2.

Remove the five screws A attaching the CD switch
board.

Removing the front board (See Fig.1)

1.

Disconnect the card wire from the connector UCW3,
UCW4, UCW5 and UCW6 on the front board.

2.

Remove the six screws B attaching the front board.

3.

Disconnect the card wire from the connector UCW2
on the front board.

Removing the headphone jack board
(See Fig.3)

Prior to performing the following procedure remove
the front board.

1.

You can pull out the headphone jack board.

B

UCW2
UCW3

B

UCW4

Front panel assembly (inner side)

A

CD switch board

Front board

Fig.1

Sound mode knob

Volume knob

Active bass ex. level knob

UCW1

UCW5
UCW6

Removing the front key board
(See Fig.2 and 3)

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

1.

Pull out the sound mode knob, volume knob and
active bass ex. level knob from front side.

2.

Remove the twelve screws C attaching the front key
board.

3.

Remove the front board releasing the two tabs.

4.

Disconnect the card wire from the connector UCW7
on the front key baord, if needed.

Removing the cassette mechanism
assembly (See Fig.3)

1.

Disconnect the card wire from the connector on the
mecha. board.

2.

Remove the six screws D attaching the cassette
mechanism assembly.

1-10

C

UCW7

Tab

C

Tab

D

Mecha.

board

D

(fixing the earth wire)

Front panel assembly (inner side)

Connector

Fig.3

Fig.2

Front key board

Headphone

jack board

D

Cassette mechanism

assembly

MX-K50R

<CD changer unit>

Prior to performing the following procedure, remove
the CD changer unit.

Removing the CD tray (See Fig.1 and 2)

1.

Turn the black loading pulley gear on the under side
of the CD changer unit in the direction of the arrow
and draw the CD tray toward the front until it stops.

2.

Disconnect the card wire from connector CW103 on
the CD board.

3.

Push down the two tray stoppers marked a and pull
out the CD tray.

Loading pulley

gear

CD changer uint (reverse side)

CD tray

CD board

CW103

Fig.1

a (Tray stopper)

Reinstall the CD tray (See Fig.3 and 4)

1.

Align the gear-cam with the gear-tray as shown fig.3,
then mount the CD tray.

2.

When assembling the CD tray, take extreme care not
engage with gear - synchro.

Gear-cam

Gear-convert

Gear-cam

timing point

CD tray

a

(Tray stopper)

CW103
(on the CD board)

Fig.2

Gear-tray

Gear-synchro

Gear-convert

Gear-tray

CD tray

Gear-tray

Fig.3 Fig.4

1-11

MX-K50R

Removing the sensor board (See Fig.5)

Prior to performing the following procedure, remove
the CD tray.

1.

Remove the screw A attaching the sensor board on
the CD tray.

2.

Remove the sensor board releasing the two tabs a.

3.

Disconnect the harness from the connector CW1 on
the sensor board.

Removing the turn tray motor
(See Fig.6 and 7)

Prior to performing the following procedure, remove
the CD tray and sensor board.

1.

Remove the screw B attaching the turn tray. Detach
the turn tray from the base tray.

2.

Pull outward the tab b attaching the turn tray motor
on the base tray and detach the turn tray motor.

CD tray (reverse side)

A

CW1

Tab a

Sensor board

Fig.5

Turn tray

Introductory notes:
Base tray + Turn tray = CD tray

Base tray

B

Fig.6

Turn tray motor

Base tray (upper side)

Tab b

Fig.7

1-12

Removing the belt, the CD board and the
switch board (See Fig.8 and 9)

Prior to performing the following procedure, remove
the CD tray.

1.

Detach the belt from the pulley on the upper side of
the CD changer unit (Do not stain the belt with
grease).

2.

Disconnect the card wire from the pickup unit
connector on the under side of the CD changer unit.

Attention : Solder is put up before the card wire is
removed from the pick-up unit
connector on the CD mechanism
assembly.
(When the card wire is removed without
putting up solder, the CD pick-up unit
assembly might destroy.)

3.

Disconnect the motor wire harness from connector
on the CD board.

4.

Remove the screw C attaching the switch board and
release the two tabs e attaching the switch board
outward and detach the switch board.

5.

Remove the two screws D attaching the CD board.
First release the two tabs f and two tabs g attaching
the motor, then release the CD board.

If the tabs f and g are hard to release, it is
recommendable to unsolder the two soldered parts
on the motor terminal of the CD board.

Tabs e

C

Switch board

CW3

CD changer unit

Fig.8

CD board

D

Tabs g

Soldered parts

CD mechanism board

motor connecter

Pickup unit connector

Card wire

MX-K50R

Belt

Motor

Tabs f

Soldering

Picup unit
connector

Fig.9

1-13

MX-K50R

Removing the CD mechanism holder
assembly (mechanism included)

(See Fig.10 to 13)

1.

Disconnect the harness from connector on the CD
mechanism board in the CD mechanism assembly
on the under side of the CD changer unit. Disconnect
the card wire from the pickup unit connector.

Attention : Solder is put up before the card wire is
removed from the pick-up unit
connector on the CD mechanism
assembly. (Refer to Fig.9)
(When the card wire is removed without
putting up solder, the CD pick-up unit
assembly might destroy.)

Motor connecter

CD changer unit

CD mechanism holder assembly

Pickup unit connector

2.

Remove the screw E attaching the shaft on the right
side of the CD mechanism holder assembly. Pull
outward the stopper fixing the shaft on the left side
and remove the CD mechanism holder assembly
from behind in the direction of the arrow y.

3.

Turn the CD mechanism holder assembly half
around the lift up slide shaft h of the CD mechanism
holder assembly until the turn table is reversed, and
pull out the CD mechanism holder assembly.

Lift up slide shaft

Fig.10

E

Stopper

CD mechanism holder assembly

Fig.11

Lift up slide shaft n

1-14

CD mechanism holder assembly

Fig.13

y

CD mechanism holder assembly

Fig.12

MX-K50R

<CD mechanism section>

•

Removing the CD mechanism holder from the CD
chager unit.
(Refer to "Removing the CD mechanism holder
assembly" )

Removing the pickup unit (

1. Removing the cut washer on the feed gear
sleeve and pull out the feed gear.

2. Remove the two screws A fixing the pickup
shaft.

3. Removing the pickup unit.

Removing the motor board

1. Unsolder the motor terminal on the motor board.

2. Remove the moter board.

Removing the feed motor (

Remove the two motor fixing screws at B and
removing the feed motor.

See Fig.1)

(See Fig.2)

See Fig.1)

A

Motor board

Shutter

Cut washer

B

Fig.1

Unsolder

Pickup unit

Feed Gear

Feed motor

Shaft

A

Removing the spindle motor

The spindle motor cannot be removed as a single
unit.
When removing the spindle motor, change the chasis
and turntable together as aunit.

< Speaker section >

It is exchange in a unit.
Please do not decompose.

Spindle motor

Unsolder

Fig.2

1-15

MX-K50R

<Cassette mechanism section>

Removing the record/playback mechanism.

Removing the R/P head.

1. Remove the screw A on the right side of the
R/P head.(Fig.1, Fig.2)

2. Remove the screw B on the left side of the

R/P head.(Fig.1, Fig.2)

Remove the erase head.

Remove the screw C fixing the erase head.(Fig.1)

Removing the pinch roller.

1. Pull out the pinch roller by opening the pinch
roller stopper outward to unlock .(Fig.3)

2. When reassembling the pinch roller, refer to
fig. 4 to hook up the spring.

R/P Head

E. Head

Stoppsr

A

B

C

Fig.1

B

Pinch roller
assembly

A

Spring

Pinch roller

Return spring

R/P Head

Fig.2

Pinch roller

Fig.3

Pinch roller

stopper

Pinch roller

spring

1-16

Return spring

Return spring

Fig.4

MX-K50R

Removing the motor.

1. Remove the two screws D fixing the motor.
Be careful to grease's splash when the
drive belt comes off.(Fig.5, Fig.6)

2. Unsolder the motor terminal.(Fig.5)

Removing the mechanism board.

1.

coil terminal.(Fig.5)

2. Remove the two screws E fixing the board.(Fig.5)

capstan shaft, then remove the flywheel.
When reassembling the flywheel,
be sure to use new washers as they
cannot be reused.(Fig.8, Fig.9)

Unsolder the four parts a on the solenoid

3. Unhook the three parts b from the board.(Fig.5)

4. Remove the mechanism board.(Fig.5)

Removing the flywheel.

Remove the cut-washers at c and d from the

Mecha.

a

Drive belt (Flat)

board

E

b

Motor

Motor

terminal

D

D

Fig.5

Drive belt

Fig.6

E

Drive belt

Motor

b

a

Sleeve

Flywheel

c

Washer

Fig.9

Sleeve

d

FR belt

Capstan

washer

Flywheel

Fig.7

FR belt

Fig.8

Capstan

washer

Flywheel

1-17

MX-K50R

Wiring connection

Amp. board

ACW2

ACW1

3809-001224

UCW7

CD switch board

UCW1

3809-001228

9

9

0

0

3809-001315

Front key board

2

Color codes are shown below.
1 Brown
2 Red
3 Orange
4 Yellow
5 Green

PJ2

SUB

PJ3

P/T

RCW5

ECO board

9

0

6 Blue
7 Violet

0

9

8 Gray
9 White

RCW1

RFS2

0 Black

CD mechanism

Power transformer

9
0

CW2

CW1

CW3

AAN1

0

2

AH38-12001A

CW102

CW103

9

0

CW101

CW104

CW3

CW105

CW107

CW106

0

2

3809-001034

2

0

9

9

0

CD board

RFS5

RFS6

RFS7

UCW4

UCW6

UCW5

RFS8

3809-001121

3809-001185

ECW1

PCW1

UCW2

UCW3

Front board

9

0

0

9

0

9

8

2

1-18

3809-001184

3809-001223

Tuner board

CON01

0

FCW1

OCW

9

0

RCW6

FCW2

Main board

HCW3

JCW1

JCW2

FCW3

0

9

RW2

9

0

9

0

0

9

RW1

2

0

2

9

0

HCW2

9

Headphone J.board

AH39-00022A

9

2

0

0

9

0

88

9

9

2

0

AH39-20002D

8

2

Adjustment method

1. Tuner

MX-K50R

ITEAM

Received FREQ.
Adjustment

point

Output

* Adjustment Location of Tuner PCB

AM(MW) OSC
Adjustment

522~1629 KHz

MO

1~7.0V

MAIN
PCB

AM(MW) RF
Adjustment

594 KHz

MA

Maximum
Output(Fig.1)

VT

GND

LW OSC
Adjustment

144~288 KHz

LO

2~7.0V

TESTER

LW RF
Adjustment

150 KHz

LA

Maximum
Output(Fig.1)

Fig.1 OSC Voltage

1-19

MX-K50R

FM THD Adjustment

SSG FREQ.

98 MHz

Adjustment
point

FM DETECTOR COIL

(FM DET)
Output

60 dB

Minumum Distortion (0.4% below)
(Fig.2)

FM Search Level Adjustment

SSG FREQ.
Adjustment

point

(SVR1)

BEACON
SENSITIVITY
SEMI-VR(20K

98 MHz

Output
GND

FM S.S.G

FM
Antenna
Terminal

SET

Oscilloscope

Input

Speaker
Terminal

output

Input

Distortion Meter

Fig.2 IF CENTER and THD Adjustment

28 dB

)

FM Antenna

SET

Output

28 dB(

2dB)

Adjust SVR1 so that "TUNED" of FLT
is lighted (Fig.3)

*Adjust FM S.S.G level to 28dB

AM(MW) I.F Adjustment

SSG FREQ.
Frequency

450 kHz
522 kHz

Adjustment
point

AM IF

Maximum output (Fig.4)

FM S.S.G

GND

FM IN

Fig.3 FM Auto Search Level Adjustment

60cm

OUTPUT

AM SSG
450KHZ

AM ANT
IN

20 k

AM IF

Speaker Terminal

1-20

INPUT

VTVM Oscilloscope

OUTPUT

Fig.4 AM I.F Adjustment

2. Cassette Deck

To adjust tape speed

Notes

1) Measuring tape:
i) VT-712/MTT-111(or equivalent)
(Tapes recorded with 3kHz)
ii) AC-225/MTT-5512(or equivalent)

2) Connect the cassette deck to the frequency counter
as in fig.1.

Cassette Deck

SPK OUT

MX-K50R

Frequency Counter

output

Fig.1

Pre-Setup
Condition

NOR

1 3KHz

SPEED
Control

OUT
(connected to the
frequencycounter)

1) Deck 1:VT-712

2) Press PLAY
SW button

To Adjust

Turn VSR1 to
left and right
(FRONT PCB)

3) Deck 2:Same
as above

To adjust plabyback level/REC

Notes

1) Before the actual adjustment, clean the play/recording head.

2) Measuring tape :
i) VT-703/MTT-114N(or equivalent 10kHz AZIMUTH control)

ii) AC-225/MTT-5512(or equivalent)

3) The cassette deck is connections as shown in fig.2.

Cassette Deck

SPK OUT

(GND)

Fig.2

VTVM

In Out

RemarkStandardPre-SetupItemStep

1%

range

Oscilloscope

1. Adjust Deck 1 Play Level

Pre-Setup
Condition

AZIMUTH1 SPK OUT

(VTVM is
connected to
the scope)

After putting VT-703
into Deck 1

- Press FWD PLAY
button.

To Adjust

Turn the control
screw to as
shownin Fig.3.

Max output
and same phase
(both channels)

RemarkStandardPre-SetupItemStep

After
adjustment
secure it with
REGION
LOCK.

1-21

MX-K50R

2. Adjust Deck 2 Play Level/REC BIAS

2

AZIMUTH1

Recording
Bias
Voltage

Pre-Setup
Condition

SPK OUT
(VTVM is
connected to
the scope)

Fig.4

Recording /Play head

After putting VT-703
into Deck 2

1)Press FWD PLAY
button.

After putting AC-225
into Deck 2

1)Press REC PLAY
button.

2)MAIN PCB JCW3,
connectted to VTVM

To Adjust

Turn the control
screw to as
shown in Fig.3.

Turn JSR2L,
JSR2R to the
right and left

Max output
and same phase
(both channels)

7mV(

0.5mV)

RemarkStandardPre-SetupItemStep

After
adjustment
secure it with
REGION
LOCK.

AZIMUTH control screw

Audio OSC.

Fig.3

AUX IN

SET
(MAIN PCB)

LINE OUT

IN

TP

JCW3

Fig.4

VTVM

IN OUT

Oscilloscope

1-22

Flow of functional operation until TOC read

Power ON

Play Key

RESET a CD LSI

MX-K50R

Check Point

Confirm that the voltage at the pin17
of KB9226(IC101) is "L" "H".

LIMIT SW ON

SET Default value of
TE gain, TE balance

Automatic adjusting of

focus bias

Automatic adjusting of

FE offset

Automatic adjusting of

TE offset

LASER power ON

Detection of disk

Confirm that the voltage at the pin33
of KB9226(IC101) is "H" "L" "H".

Confirm that the voltage at the
pin37 of KB9226(IC101) is 3.5V.

Tracking error waveform at TOC reading

Pin 34 of
KB9226
(IC101)

2.50V

Approx

0.4V

Disc states
to rotate

Approx.3.7sec

Disc is rotated

Automatic adjusting of

TE balance

Automatic adjusting of

TE gain

TOC reading

Play a disc

Confirm that the signal from pin24
of KB9226(IC101) is 3.5V as a
accelerated pulse during
approx.1.96s.

Confirm the waveform of
the Tracking error signal
at the pin 34 of KB9226(IC101).

Confirm the eye-pattern
at the pin2 of KB9226(IC101).

1-23

MX-K50R

Maintenance of laser pickup

(1) Cleaning the pick up lens
Before you replace the pick up, please try to
clean the lens with a alcohol soaked cotton
swab.

(3) Semi-fixed resistor on the APC PC board

The semi-fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the
laser power. Since this adjustment should be performed to match the characteristics of the whole optical block,
do not touch the semi-fixed resistor.
If the laser power is lower than the specified value, the laser diode is almost worn out, and the laser pickup
should be replaced.
If the semi-fixed resistor is adjusted while the pickup is functioning normally, the laser pickup may be damaged
due to excessive current.

(2) Life of the laser diode
When the life of the laser diode has expired,
the following symptoms will appear.

1. The level of RF output (EFM output :
amplitude of eye pattern) will below.

Is the level of

RF OUT under

1.1V 0.2Vp-p?

YES

O.K

NO

Replace it.

Replacement of laser pickup

Turn off the power switch and,disconnect the
power cord from the ac outlet.

Replace the pickup with a normal one.(Refer
to "Pickup Removal" on the previous page)

Plug the power cord in,and turn the power on.
At this time,check that the laser emits for
about 3seconds and the objective lens moves
up and down.
Note: Do not observe the laser beam directly.

Play a disc.

1-24

Check the eye-pattern at TP1.

Finish.

Troubleshooting

1. Amplifier

Power malfunction

MX-K50R

No output

,5,6,7

5,6,7

1-25

MX-K50R

2.Tuner malfunction (FM/AM)

3.Tape

HA12235F

HA12235F

JIC1(HA12235F) PIN5,26

3,4,27,28

16

JC63L,JC63R,JR65L,JR65R

1-26

4.CD

MX-K50R

1-27

MX-K50R

Description of major ICs

5L9290 (IC201) : Digital signal processor for CDP

1. Pin layout

VSSA_DAC

VREF

VHALF

VDDA_DAC

LRHOUT

VDDA_PLL

48 47 46 45 44 43 42 41 40 39 38 37

VDDD_DAC

RCHOUT

SADTI

VSSD_DAC

LRCKI

BCKI

2. Block diagram

VSSA_PLL

VCO1LF

VSSD_PLL

VDDD_PLL

VDDD1_5V

XIN

XOUT

VSSD1_5V

EFMI

LOCK

SMEF

SMON

1

2

3

4

5

6

7

8

9

10

11

12

13 14 15 16 17 18 19 20 21 22 23 24

SMDS

WDCK

S5L9290X

DSP+DAC

48-LQFP-0707

LKFS

TESTV

LKFS

RESETB

MLT

MDAT

SOS1
SQCK
SBCK

SQDT

SBDT

MCK

ISTAT

C2PO

S0S1

SQCK

36

35

34

33

32

31

30

29

28

27

26

25

DATX

BCKO

LRCKO

SADTO

DATX

C2PO

JITB

SBCK

VDDD3-5V

VSSD2-3V

VDDD2-3V

MUTE

SQDT

VCO1LF

EFMI

LOCK

SMEF
SMDP
SMDS

WDCK

WFCK

RFCK

C4M

XIN

ISTAT

MLT

MDAT

MCK

MUTE

DPLL

CLV

Servo

Timing

Generator

Micom

Interface

Subcode

Out

EFM

Demodulator

ECC

16K

SRAM

Address

Generator

JITB

Interpolator

Interface

SADTO
LRCKO

BCKO

I/O

Digital

Out

SADTI
LRCKI

BCKI

Digital

Filter

1-bit
DAC

PWM

LPF

LCHOUT

RCHOUT

VHALF

VREF

1-28

3. Pin function

MX-K50R

NO.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
28
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48

Symbol
VSSA_PLL
VCO1LF
VSSD_PLL
VDDD_PLL
VDDD1-5V
XIN
XOUT
VSSD1
EFMI
LOCK
SMEF
SMDP
SMDS
WDCK
TESTV
LKFS
C4M
RESETB
MLT
MDAT
MCK
ISTAT
S0S1
SQCK
SQDT
MUTE
VDDD2-3V
VSSD2
VDDD3-5V
SBCK
JITB
C2PO
DATX
SADTO
LRCKO
BCKO
BCKI
LRCKI
SADTI
VSSD_DAC
VDDD_DAC
RCHOUT
VSSA_DAC
VREF
VHALF
VDDA_DAC
LCHOUT
VDDA_PLL

I/O

-

O

-

-

­I

O

-

I
O
O
O
O
O

I
O
O

I

I

I

I
O
O

I
O

I

-

-

-

I
O
O
O
O
O
O

I

I

I

-

-

O

­O
O

­O

-

Function
Analog Ground for DPLL
Pump out for VCO1
Digital Ground Separated Bulk Bias for DPLL
Digital Power Separated Bulk Bias for DPLL (3V Power)
Digital Power (5V Power, I/O PAD)
X'tal oscillator input (16.9344MHz)
X'tal oscillator output
Digital Ground (I/O PAD)
EFM signal input
CLV Servo locking status output
LPF time constant control of the spindle servo error signal
Phase control output for Spindle Motor drive
Speed control output for Spindle Motor drive
Word clock output (Normal Speed : 88.2KHz, Double Speed : 176.4KHz)
Various Data/Clock Input
The Lock status output of frame sync

4.2336MHz clock output
System Reset at 'L'
Latch signal input from Micom
Serial data input from Micom
Serial data receiving clock input from Micom
The internal status output to Micom
Subcode sync signal(S0+S1) output
Subcode-Q data transfering bit clock input
Subcode-Q data serial output
System mute at 'H'
Digital Power (3V Power, Internal Logic)
Digital Ground (Internal Logic)
Digital Power (5V Power, I/O PAD)
Subcode data transfering bit clock
Internal SRAM jitter margin status output
C2 pointer output
Digital audio data output
Serial audio data output (48 slot, MSB first)
Channel clock output
Bit clock output
Bit clock input
Channel clock input
Serial audio data input (48 slot, MSB first)
Digital Ground for DAC
Digital Power for DAC (3V Power)
Right-Channel audio output through DAC
Analog Ground for DAC
Referance Voltage output for bypass
Referance Voltage output for bypass
Analog Power for DAC (3V Power)
Left-Channel audio output through DAC
Analog Power for PLL (3V Power)

1-29

MX-K50R

KB9226 (IC101) : RF amp. & servo signal processor

1. Pin layout

36 35 34 33 32 31 30 29 28 27 26 25

LD

37

PD

38
39

PDAC

40

PDBD

41

PDF

42

PDE

43

DCB

44

MCP

45

DCCI

46

DCCO

47

VREF

48

EQC

1 2 3 4 5 6 7 8 9 10 11 12

ATSC

RFM

LPFT

RFO

TEIO

EQI

FEO

GND

TZC/SSTOP

S1L9226X

EFMI

VCC

EQO

FEM

FRSH

TEO

FSET

TEM

FLB

SLP

FGD

FSI

SLO

SLM

SPO

SPM

ASY
EFM

LOCK

WDCK

CLVI

RESET

MLT

MDATA

MCK

ISTAT

TGU

24
23
22
21
20
19
18
17
16
15
14
13

2. Block diagram

4

EQO

EFMI

5

45

DCCI

DCC0

46

MCP

44

DCB

43

VCC/

6

VDD

7

FRSH

8

FSET

FLB

9

FGD

10

11

FSI

EQI

RFO

RFM

RF AGC & EQ

Control

Focus OK Detect

Defect Detect Mirror

Gen

Focus Servo Loop

- Gain & Phase
Compensation

- Focus Search

- Offset Adjust

- FZC Gen.

EQC

VREF

Center

Voltage

APC. Laser

Control &

LPC

Tracking Servo Loop

- Gain & Phase
Compensation

- Track Jump

- Offset Adjust

- TZC Gen.

Hardware Logic

- Auto-Sequencer

- Fast Search

- Febias, Focus Servo,
Tracking Offset ADJ.

- Tracking Balance & Gain
Adjust

- Interruption Detect

- EFM Muting System

PDE

41 40424748123

Tracking Error

(RW)

I/V AMP

PDF

PDBD

39

RF & Focus

Error (CD-RW)

I/V AMP

Sled Servo &

Kick Gen

PDAC

38
37

35
34

33
36

29
28

27
26
25

29

30

PD
LD

LPFT
TEIO

TZC&
SSTOP

ATSC

TEO
TEM

SLP
SLO
SLM

FEO

FEM

1-30

TGU

12

Micom Data Interface Logic Decoder

Comparator

1413 15 16 17 19 18 20 22 21

ISTAT

MCK

MDATA

MLT

RESET

WDCK

CLVI

LOCK

EFM

ASY

EFM

Spindle

Servo LPF

23

24

SPDLO

SPDLM

3. Pin function

Pin No.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33

34
35
36
37
38
39
40
41
42
43
44
45
46
47

48

Symbol
RFM
RFO
EQI
EQO
EFMI
VCC
FRSH
FSET
FLB
FGD
FSI
TGU
ISTAT
MCK
MDATA
MLT
RESET
CLVI
WDCK
LOCK
EFM
ASY
SPM
SPO
SLM
SLO
SLP
TEM
TEO
FEM
FEO
GND
TZC/
SSTOP
TEIO
LPFT
ATSC
LD
PD
PDAC
PDBD
PDF
PDE
DCB
MCP
DCCI
DCCO
VREF
EQC

Function

I/O

RF summing amp. inverting input

I

RF summing amp. output

O

RFO DC eliminating input(use by MIRROR, FOK ,AGC & EQ terminal)

I

RF equalizer output

O

EFM slice input. (input impedance 47K)

I

Main power supply

P

Capcitor connection to focus search

I

Filter bias for focus,tracking,spindle

I

Capacitor connection to make focus loop rising band

I

Terminal to change the hign frequency gain of focus loop

I

Focus servo input

I

Connect the component to change the high frequency of tracking Loop

I

Internal status output

O

Micom clock

I

Data input

I

Data latch input

I

Reset input

I

Input the spindle control output from DSP

I

88.2KHz input terminal from DSP

I

Sled run away inhibit pin (L: sled off & tracking gain up)

I

EFM output for RFO slice(to DSP)

O

Auto asymmetry control input

I

Spindle amp. inverting input

I

Spindle amp. output

O

Sled servo inverting input

I

Sled servo output

O

Sled servo noninverting input

I

Tracking servo amp.inverting input

I

Tracking servo amp. output

O

Focus servo amp. inverting input

I

Focus servo amp. output pin

O

Main ground

P

Tracking zero crossing input & Check the position of pick-up wherther inside or not

I

Tracking error output & Tracking servo input

B

Tracking error integration input (to automatic control)

I

Anti-shock input

I

APC amp. output

O

APC amp. input

I

Photo diode A & C RF I/V amp. inverting input

I

Photo diode B & D RF I/V amp. inverting input

I

Photo diode F & tracking(F) I/V amp. inverting input

I

Photo diode E & tracking(E) I/V amp. inverting input

I

Capacitor connection to limit the defect detection

I

Capacitor connection to mirror hold

I

Output pin to connect the component for defect detect

O

Input pin to connect the component for defect detect

I

(VCC+GND)/2 Voltage reference output

O

AGC_equalize level control terminal & capacitor terminal to input in to VCA

I

MX-K50R

1-31

MX-K50R

LC72131(IC02) : PLL frequency synthesizer for electron alignment

1. Pin layout

1

XIN

2

CE

3

DI

4

CL

5

DO

6

BO1

7

BO2

8

BO3

9

BO4

10

I01

20
19
18
17
16
15
14
13
12
11

XOUT
VSS
AOUT
AIN
PD
VDD
FMIN
AMIN
I02
IFIN

2. Block diagram

1

20

14

13

2

3
4

5

15
19

CCB
I/F

Power
on
Reset

Reference
Driver

1
2

Swallow
Counter
1/16,1/17 4bits

12bits
Programmable
Divider

Data Shift Register & Latch

Phase
Detector
Charge
Pump

Unlock
Detector

Universal
Counter

16
17
18

11

3.Pin function

Symbol

XIN
XOUT

FMIN

AMIN

Pin No.

1

20

14

13

Type

Xtal OSC

Local
oscillator
signal input

Local
oscillator
signal input

6

7

9

8

Functions

Crystal resonator connection
(4.5MHz/7.2MHz)

Serial data input : FMIN is selected when DVS is set to 1.
The input frequency range is from 10 to 160MHz.
The signal is passed through a built-in divide-by-two prescaler
and then supplied to the swallow counter.
A1 though the range of divisor setting is from
272 to 65, 535, the actual divisor is twice the setting since
there is also a built-in divide-by-two prescaler.

Serial data input : AMIN is selected when DVS is set to 0.
Serial data input : When SNS is set to 1 :
The input frequency range is form 2 to 40MHz
The signal is supplied directly to the swallow counter.
The range of divisor setting is from 272 to
65, 535 and the actual divisor will be the value set.
Serial data input : When SNS is set to 0 :
The input frequency ranges is from 0.5 to 10MHz.
The signal is supplied directly to a 12-bit
programmable divider.
The range of divisor setting is from 4 to 4,095 and the
actual divisor will be the value set.

1210

(1/2)

Circuit configuration

1-32

CE

2

Chip enable

Most be set high when serial data is input to the
LC72131M (DI ), or when serial data is output (DO).

S

MX-K50R

3.Pin function

Symbol

CL

DI

DO

VDD

VSS

BO1

BO2

BO3

BO4

Pin No.

4

3

5

15

19

6

7
8

9

Type

Clock

Input data

Output data

Power supply

Ground

Output port

Functions

Used as the synchronization clock when serial data is input
to the LC72131 (DI ), or when serial data is output (DO).

Inputs serial data sent from the controller to the LC72131M.

Output serial data sent from the LC72131M to the controller.
The content of the output data is determined by the serial
data DOCO to DOC2.

The LC72131M power supply (VDD=4.5 to 5/5V)
The power on reset circuit operates when power is first applied.

The LC72131M ground.

Dedicated output pins
The output states are determined by BO1 to BO4 in the
serial data.
'Data"=0:Open
=1:Low
The pins go to the open state after the power-on reset.
An 8Hz time base signal can be output from BO1 when TBC
in the serial data is set to 1.
Note that the ON impedance of the BO1 pin is higher than
that of the other pins (BO2 to BO4)

(2/2)

Circut confguration

S

S

IO1

IO2

PD

AIN
AOUT

10

12

16

17
18

I/O Port

Charge pump
output

L.P.F
amplifier Tr

Pins used for both input and output
The input or output state is determined by bits IOC1 and IOC2
in the serial state.
'Data"=0:Input port
=1:Output port
When specified for use as an input port :
The input state is transmitted to the controller through the
DO pin.
'Input state"=Low:data value 0
=High:data value 1
When specified for use as an output port :
The output state is determined by bits IO1 and IO2 in the
serial sate.
'Data"=0:Open
=1:Low
These pins go to the input port state after the power-on reset.

PLL Charge pump output
When the frequency generated by dividing the Local oscillator
frequency by N is higher than the reference frequency,
a high level will be output from the PD in. similarly, when that
frequency is lower, a low level will be output.
The PD pin goes to the high impedance state when the
frequencies agree.

The MOS transistor used for the PLL active Low-pass filter.

S

IFIN

11

IF counter

The input frequency range is from 0.4 to 12MHz.
The signal is supplied directly to the IF counter.
The result from the IF counter MBS is output through
the DO pin.
There are four measurement periods: 4, 8, 32 or 64ms.

1-33

MX-K50R

LC86P6548 (UIC1) : Microcontroller

1.Pin layout

S47/PF7

S46/PF6

S45/PF5

S44/PF4

S43/PF3

S42/PF2

S41/PF1

S40/PF0

VDD4

S39/PE7

S38/PE6

S37/PE5

S36/PE4

S35/PE3

S34/PE2

S33/PE1

S32/PE0

S31/PD7

S30/PD6

S29/PD5

S28/PD4

S27/PD3

S26/PD2

S25/PD1

S24/PD0

S23/PC7

S22/PC6

S21/PC5

S20/PC4

VP

2.Block diagram

S48/PG0
S49/PG1
S50/PG2
S51/PG3

P00
P01
P02
P03

VSS2

VDD2

P04
P05
P06
P07

P10/SO0

P11/SI0/SB0

P12/SCK0

P13/SO1

P14/SI1/SB1

P15/SCK1

81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100

Interrupt Control

Standby Control

CF

RC

X’ta

l

8079787776757473727170696867666564636261605958575655545352

1234567891011121314151617181920212223242526272829

P30

P31

P32

P33

P34

P35

P36

P16/BUZ

P17/PWM0

Clock

Generator

P37

P70/INT0

RES

XT1/P74

CF1

VSS1

XT2/P75

CF2

VDD1

P80/AN0

IR

PLA

PROM
Control

PROM(48KB)

P81/AN1

P82/AN2

P83/AN3

PC

P84/AN4

P85/AN5

P86/AN6

A15-A0
D7-D0
TA
CE
OE
DAS

EC

P87/AN7

P71/INT1

P72/INT2/T0I

51

50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31

30

S0/T0

P72/INT3/T0I

S19/PC3
S18/PC2
S17/PC1
S16/PC0
VDD3
S15/T15
S14/T14
S13/T13
S12/T12
S11/T11
S10/T10
S9/T9
S8/T8
S7/T7
S6/T6
S5/T5
S4/T4
S3/T3
S2/T2
S1/T1

Base Time

SI

O0

O1

SI

Timer 0

er 1

Tim

ADC

INT0-3

Noise Filter

SIO Auto

transmissio

RAM

128 by

VFD

Controller

High voltage O

r

matic

s

te

utput

Bus Interface

n

Port 1

Port 3

Port 7

Port 8

ACC

B Register

C Register

PSW

RAR

RAM

Stack Poi nter

Port 0

Watchdog Timer

1-34

3. Pin function
Pin No.

1
2
3

to

10
11
12
13
14
15
16
17
18
19

to

22
23

to

26
27
28
29
30

to

36
37

to

45
46
47

to

50
51
52

to

63
64

to

71
72
73

to

80
81

to

84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99

100

P16/BUZ

P17/PWM0

P70/INT0

XT1/P74
XT2/P75

P80/AN0
P83/AN3

P84/AN4
P87/AN7

P71/INT1
P72/INT2/T0I
P72/INT3/T0I

S15/T15

S16/PC0
P19/PC3

S20/PC4
S31/PD7

S32/PE0
S39/PE7

S40/PF0
S47/PF7

S48/PG0
S51/PG3

P10/SO0

P11/SI0/SB0

P12/SCK0

P13/SO1

P14/SI1/SB1

P15/SCK1

Symbol

P30

to

P37

RES

VSS1

CF1
CF2

VDD1

to

to

S0/T0

to

S6/T6
S7/T7

to

VDD3

to

VP

to

to

VDD4

to

to

P00
P01
P02

P03
VSS2
VDD2

P04

P05

P06

P07

I/O

Function

I/O

Buzzer output

I/O

Timer 1 output (PWM0 output)

I/O

8bit input/output port
Input/output in bit unit
15V withstand at N-channel open drain output

I/O

INT0 input /HOLD release/N-channel Tr. ouptput forwatchdog timer

I

Reset pin

I

32.768kHz crystal oscillation terminal XT1

I

32.768kHz crystal oscillation terminal XT2

-

Power pin (-)

I

Input pin for the ceramic resonator oscillation

O

Output pin for the ceramic resonator oscillation

-

Power pin (+)

I

4-bit input port
Input /output in bit unit

O

I

INT1 input/HOLD release input

I

INT2 input/timer 0 event input

O

Output for VFD display controller segment/timing incommon

O

Output for VFD dis;lay controller segment/timing withinternal pull-down
resistor in common
Internal pull-down resistor output

-

Power pin (+)

I/O

Output for VFD display controller
High voltage input port PC0 to PC3

-

Power pin (+) for the VFD output pull-down resist

I/O

Output for VFD display controller
High voltage input port PC4 to PC7, PD0 to PD7

I/O

Output for VFD displaya controller segment
High voltage input port PE0 to PE7

-

Power pin (+)

I/O

Output for VFD displaya controller segment
High voltage input port PF0 to PF7

I/O

Output for VFD displaya controller segment
High voltage I/O port PG0 to PG3

I/O

8-bit input/output port. Input for port0 interrupt.
Input/output in nibble unit
Input for HOLD release
15V withstand at N-channel open drain output

-

Power pin (-)

-

Power pin (+)

I/O

8-bit input/output port. Input for port0 interrupt.
Input/output in nibble unit
Input for HOLD release
15V withstand at N-channel open drain output

I/O

SIO0 data output
SIO0 data input/bus input/output
SIO0 clock input/output
SIO1 data output
SIO1 data input/bus input/output
SIO1 clock input/output

8-bit input/output port
Input/output can be specified in a bit unit

MX-K50R

1-35

MX-K50R

HA12235 (JIC1) : Audio signal processor

1. Block diagram

TEST

(Open for normal use)

IREF

GND

20

19

18

ALCDET
17

Vcc

REC MUTE OFF/ON

16

15

A

MUTE ON/OFF
14

(REC RETURN ON/OFF)

A/B
13

ALC ON/OFF

High/Normal

11

12

REC OUT(L)

NC

ALC(L)

REC IN(L)

NC

PB OUT(L)

TAI(L)

EQOUT(L)

PB-EQ(L)

PB-NF2(L)

21

22

23

24

2526

27

28

29

30

EQ

120/60

(Norm/High)

+

31

MUTE

AB

32

33

34

Return SW

35

ALC

Return SW

36

37

38

MUTE

AB

39

EQ

120/60

(Norm/High)

+

40

REC OUT(R)

10

9

NC

8

ALC(R)

7

REC IN(R)

6

NC

5

PB OUT(R)

4

TAI(R)

3

EQOUT(R)

2

PB-EQ(R)

1

PB-NF2(R)

2. Pin function

Pin No.

1
2
3
4
5
6
7
8

9
10
11
12
13
14

1-36

Symbol
PB-NF2(R)
PB-EQ(R)
EQOUT(R)
TAI(R)
PBOUT(R)
NC
RECIN(R)

NC
RECOUT(R)
ALC ON/OFF
High/Norm
A/B
MUTE ON/OFF

PB-NF1(L)

Function
PB EQ feed back
NAB output
EQ output
Tape input
PB output
NC pin
REC-EQ input

NC pin
REC output
Mode control input
Mode control input
Mode control input
Mode control input

AIN(L)

Pin No.

RIP

15

16
17
18
19

20
21
22
23
24
25
26

REC

IN(L)

Symbol
REC MUTE
OFF/ON
Vcc

GND
IREF

Test mode
RECOUT(L)
NC

RECIN(L)
NC
PBOUT(L)

GND

Return

Function
Mode control input

Vcc pin

GND pin
Equalizer reference
current input
Test mode pin
REC output
NC pin

REC-EQ input
NC pin
PB output

IN(R)

NC

AIN(R)

Pin No.

27
28
29
30
31
32
33
34
35
36
37
38
39
40

PB-NF1(R)

Symbol
TAI(L)
EQOUT(L)
PB-EQ(L)
PB-NF2(L)
PB-NF(L)
AIN(L)
RIP
BIN(L)
REC-RETURN
GND
BIN(R)
NC
AIN(R)
PB-NF1(R)

Function
Tape input
EQ output
NAB output
PB EQ feed back
PB EQ feed back
PB A deck input
Ripple filter
PB B deck input
REC Return
GND pin
PB B deck input
NC pin
PB A deck input
PB EQ feed back

M66010 (UIC2) : I/O control

1.Pin layout

MX-K50R

D0
D1

CLK

CS

Vcc

GND

D24
D23
D22
D21
D20
D19
D18
D17

GND

1
2
3
4
5

S

6
7
8

9
10
11
12
13
14
15
16

2.Block diagram

CLOCK INPUT CLK

SET INPUT S

CHIP SELECT CS

INPUT

SERIAL DATA DI

INPUT

DO
DI
CLK
CS

S

D24
D23
D22
D21
D20
D19
D18
D17

D1
D2
D3
D4
D5
D6
D7
D8

D9
D10
D11
D12
D13
D14
D15
D16

3

6

4

2

32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17

Control circuit

D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16

Shift register 1

D24 D23 D22 D3 D2 D1

Q24 Q23 Q22 Q3 Q2 Q1

Parallel output latch

D24 D23 D22 D3 D2 D1

Q24 Q23 Q22 Q3 Q2 Q1

Shift register 2

DI

DO

GND GND

7

Vcc

5

16

DO SERIAL DATA

1

OUTPUT

32

D1

31

D2

30

D3

PARALLEL
DATA I/O

10

D22

9

D23

8

D24

STK402-120 (AIC1) : Power amp.

1.Pin layout

+

ch.1

_

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Ch.1INCh.1NFNC Pre

+Vcc

BIAS Ch.1

+VE

Ch.1

+Vcc -Vcc Ch.2

-VE

+VE

Ch.2

-VE

ch.2

Pre

-Vco

+
_

SUB

GND

Ch.2NFCh.2

IN

1-37

MX-K50R

TDA7442D (FIC1) : Audio processor

1.Pin layout

R_IN3
R_IN2
R_IN1

L_IN1
L_IN2 V
L_IN3
L_IN4

MUXOUTL

IN(L)

MUXOUT(R)

IN(R)

BIN(R)

BOUT(R)

BIN(L)

1
2
3
4
5
6
7
8
9
10
11
12
13
14

2.Block diagram

MUXOUT(L)

0.47

0.47 F

0.47 F

0.47 F

0.47

0.47

0.47

0.47

F

L-IN1

L-IN2

L-IN3

L-IN4

F

R-IN1

F

R-IN2

F

R-IN3

F

R-IN4

4

50K

5

50K

6

50K

7

50K

3

50K

2

50K

1

50K

28

50K

31.5dB
control

31.5dB
control

MUXOUT(R)

+

2.2

­+

2.2 F

28

R_IN4

27

LOUT

26

ROUT

25

AGND

24

S

CREF23
SDA

22

SCL

21

DIG-GND

20

TREBLE(R)

19

TREBLE(L)

18

PS1

17

LP

16
15

BOUT(L)

5.6K

100nF

100nF

BIN(L)

BOUT(L)

15

14

RB

FIX

BASS

I2C BUS DECODER + LATCHES

BASS

12

BIN(R) BOUT(R)

100nF 100nF

5.6K

FIX

VAR

RB

1319

79dB CONTROL

-

VAR

+

FIX

+

-

SPKR

MUTE

SPKR

MUTE

79dB CONTROL

D98AU947A

ATT

27

LOUT

21

SCL

22

SDA

20

DIG GND

ATT

26

ROUT

AMP

AMP

5.6nF

TREBLE-L

18

OFF

SURR

TREBLE

TREBLE

SURR

OFF

Vref

TREBLE-R

F

5.6nF

SYMULATED

-

+

100nF

PS1

17

RPS1

PS1
90Hz

MUSIC/

SYMULATED

SUPPLY

AGND

MIXING

MIXING

CREF

22

MUSIC

L-R

LPF

9KHz

16
LP

1.2nF

OFF

EFFECT

CONTROL

24 25 23

V

S

F

IN(L)

98

30K

L+R

30K

1110

IN(R)

BA4560 (FIC4, HIC1) : Dual op amp.

1.Pin layout

1

OUT1

2

1-38

– IN1

+ IN1

V

EE

1ch

+

–

3

2ch

+

–

4

V

CC

8

OUT2

7

– IN2

6

+ IN2

5

L4959 (RIC1) : Voltage regulator

1.Pin layout

MX-K50R

TAB CONNECTED TO PIN 6

2.Block diagram

2/10

V

S

EN 8V

EN 12V(a)

EN 12V(b)

8

7

5

REF
GEN

11
10

9
8
7
6
5
4
3
2
1

D97AU716A

OUT 12V(a)
V

S

OUT 8.6V
EN 8.6V
EN 12V(a)
GND
EN 12V(b)
N.C.
OUT 5.6V
V

S

OUT 12V(b)

5.6V, 250mA

3

OUT 5.6V

REGULATOR

8.6V, 600mA

REGULATOR

9

OUT 8.6V

SWITCHED

12V, 800mA

REGULATOR

11

OUT 12V(a)

SWITCHED

12V, 1.3A

REGULATOR

1

OUT 12V(b)

SWITCHED

D97AU569C

3.Pin function

Pin Pins Description

1 OUT 12V (b) 12V/1.3A SWITCHED OUTPUT VOLTAGE
2V

S

3 OUT 5.6V 5.6V/250mA OUTPUT VOLTAGE
4 N.C. not connected
5 EN 12V (b) Enable 12V/1.3A SWITCHED OUTPUT VOLTAGE
6 GND Ground
7 EN 12V (a) Enable 12V/0.8A SWITCHED OUTPUT VOLTAGE
8 EN 8.6V Enable 8.6V/0.6A SWITCHED OUTPUT VOLTAGE
9 OUT 8.6 8.6V/0.6A SWITCHED OUTPUT VOLTAGE

10 V

S

11 OUT 12V (a) 12V/0.8A SWITCHED OUTPUT VOLTAGE

Supply Voltage

Supply Voltage

GND

6

1-39

MX-K50R

KA9258D (IC301) : 4-ch Motor driver

1.Block diagram

28 27 26 25 24 23 22 21 20 19 18 17 16 15

10K

T • S • D

+-

LEVEL SHIFT

10K

VCC VCC

10K

REGULATOR

10K

10K

1 2 3 4 5 6 7 8 9 10 11 12 13 14

10K

GND

10K

10K

50K

MUTE

LEVEL SHIFT

-+

GND

LA1837 (IC01) : FM IF/DET AM RF/IF/DET

1.Block diagram

1-40

KA3082 (IC401, IC402) : DC motor driver

1.Pin layout 2.Pin function

MX-K50R

DRIVER OUT

PRE DRIVER

BIAS

1234

GND

V

O1

Z1

V

LOGIC SWITCH

V

CTL

5

V

IN1VIN2

74HCU04 (OIC1) : Optical

1.Pin layout

1A 1 14 Vcc

1Y 2 13 6A
2A 3 12 6Y

2Y 4 11 5A

04U

3A 5 10 5Y

3Y 6 9 4A

GND 7 8 4Y

TS

D

678910

SV

CC

PV

CC

V

V

O2

Z2

Pin No.

1
2
3
4
5
6
7
8
9

10

Symbol

GND

VO1
VZ1

VCTL

VIN1

VIN2
SVCC
PVCC

VZ2
VO2

Function

I/O

Ground

­Output 1

O

Phase compensation

­Motor speed control

I

Input 1

I

Input 2

I

Supply voltage (Signal)

­Supply voltage (Power)

­Phase compensation

­Output 2

O

1-41

Block diagram

MX-K50R

5

CON 01

AUX IN

HIC1

TUNERAUX

AUDIO

FIC4

FIC1

SOURCE

SELECTOR

& E.VOL

CD

TAPE P
TAPE R

JIC1

TAPE IC

4

DIGITAL

OUT

OCW

OIC1

OPTICAL

DATX

UIC1

MICOM

3

AUDIO

2

1

AIC1

STK402-040

IC101 RF AMP. &

SS Processor

IC301

4ch Motor-D

IC201

DSP

IC401 Motor-D
IC402 Motor-D

CD

DATX

TAPE P/R

TAPE P

RCW5

PJ2

PJ3

RCW1

ABCD E F G

2-1

MX-K50RMX-K50R

Standard schematic diagrams

Main section

5

To UCW6
Sheet 2/5 (5, A)

4

To CON01
Sheet 5/5 (2, B)

To ACW1
Sheet 3/5 (2, B)

FCW2

To CW107
Sheet 4/5 (4, G)

To ACW2
Sheet 3/5 (5, B)

3

To CW106
Sheet 4/5 (5, G)

2

To ECW1

Sheet 2/5 (5, C)

1

SHEET

NUMBER

1/5
2/5
3/5
4/5
5/5

CIRCUIT DESCRIPTION
Main

FL display & System control
Amp.
CD
Tuner

MX-K50 MAIN
B/EV/EN/E/EE

MAIN signal

2-2

TUNER signal
CD signal

TAPE P.B. signal
TAPE REC. signal

Parts are safety assurance parts.
When replacing those parts, make
sure to use the specified parts.

SHEET 1/5

HABC DEFG

FL display & System control section

MX-K50R

5

To FCW3
Sheet 1/5 (5, A)

4

To UCW7

To CW105

Sheet 4/5 (1, E)

To RCW5

Sheet 1/5 (1, G)

To UCW5

To UCW2

3

2

To UCW1

1

SHEET 2/5

ABCD E F G

2-3

Amp. section

MX-K50RMX-K50R

5

To RW2
Sheet 1/5 (3, G)

4

3

2

To FCW2
Sheet 1/5 (5, G)

1

Parts are safety assurance parts.

MAIN signal

2-4

When replacing those parts, make
sure to use the specified parts.

SHEET 3/5

HABC DEFG

MX-K50R

CD section

5

To RCW6
SHEET 1/5 (3, A)

4

To OCW
SHEET 1/5 (4, H)

3

2

1

Switch boardSensor board

SHEET 2/5 (5, D)

ABC D E FG

CD signal

SHEET 4/5

2-5

Tuner section

MX-K50RMX-K50R

AM LOOP

FM ANT

5

4148

4148
D1

D2

10K

R10

4

473K
C7

3

X-TAL

7.2MHz(12p/US)

FM TUNER (KST-F404VA-7 4GANG)

2134 5678

NC

ANT

AGC

220

R9

223

15K

C1

R1

SVC348

MA

A27

6

2 1

S

4 5

3

S

S

6

21

4

3

LA

00011A

GND

X-OUT

19 18

20

VT

GND

22K

R2

223
C2

D4

MO

60LMO

6

1

2

S

4

3

S

3

4

2

5

S

1

6

S

Q3 Q4 Q5

DTC143TK DTC143TK DTC143TK

+

2.2uF/35
EC3

1K

2.2K

R21

C12

103K

A OUT

R20

A IN

PD

17 16 15 14 13 12 11

LC72131MICO2

123

X IN

221
C16

456789

DO

DI

CE

CLK

R26

10K

VCC

LO
00007A

5.6K

R18

Vdd

MW/LW

R17

10K

+

IF OUT

***
R3

R11

47uF/16
EC2

150
C8

FM OSC

MO/ST

OSC OUT

10

100K
R13

AM OSC

AM/FM

R4

030

C41

100

FM

IF REQ(MUTE)

102
C9

IF COUNT

10

SW

CF1

102
C10

C13

SFE10.7MJA10-A

47uF/16

EC5

101

Q1

3142

103K
C5

330

470

R8

R7

151413

0.47uF/50
EC18

10uF/16

EC13

1uF/50
EC19

+

2.2K
R34

3.3K

R36

5.1K

R47

822

+

3.3K

1uF/50

EC15

C45

B.P.F

++

R32

2.2uF/35

EC10

5.1K

R44

+

822

C46

01011-101 x 2

B.P.F

2.2uF/35

EC11

R33

10uF/35

EC16

3.3K

5.1K
R45

3.3K
R46

+

10uF/16
EC12

++

1uF/50
EC17

+

223

1uF/50

10uF/16

104

223
C6

10K

SVR1

12K
R15

30 2729 28 26 25

104

EC8

EC7

C42

C19

++

IC01

1234 5 6 789101112

+

473

10uF/16

EC6

C11

560

R52

CF2

SFE10.7MS3A

AM IF

75E-380

473K
C27

+

47uF/16
EC14

***

R38

CF4
FILTER

LTSD450B

47K

47K

R51

R50

5.1K

102

R14

C20

4.7uF/35

EC9

R31

10K

393
C22

2324 22 21 19 18 17 16

LA1837

150
R42

4.7K
R41

223

C23

C24

392
C21

20

47
R43

473

473

***

C29

C28

R40

FD

A33S

2.2K
R35

3.3K

183

C25

183

C26

R37

47p
C61

4.332MHz

2.2K
R61

R62

16 15 14

X-TAL

39K

56p
C62

13 12 11

10 9

BU1924IC03

Z3.3V(1/2W)

10uF/16

D5

++

EC21

123

470

R63

2.2uF/35

EC22

456

102
C64

473

3.3K

C63

R64

78

560

C65

560

3.3K

R5

R6

R12

100

Q2

A114EK

1K

R16

100

R19

RDS GND

100

33p
C68

10K

R28

R39

560
R30

+

473

47uF/16

C30

EC20

473
C44

473
C43

RDS

220

180

C15

TUNED

C14

STEREO

Vcc 12V

L-OUT

GND

R-OUT

2

123456

1K

1K
R23

R22

DATA IN

CE1

7

8910

1K
R24

CLK1

1K

R25

DATA OUT

D-GND

11

104

C49

Z5.1V(1/2W)

D3

RDS DATA

RDS CLK

To FCW1

1312

SHEET 1/5 (4, A)

330

C68

CON 01

FM/ TUNER signal

1

AM signal

SHEET 5/5

2-6

HABC DEFG

MX-K50R

Printed circuit boards

Main board

Main board

5

Headphone jack board

4

Trans. board

3

2

Fuse board

1

ABCD E F G

2-7

MX-K50R MX-K50R

Front board

CD switch board

5

Front board

4

3

Front key board

2

1

2-8

HABC DEFG

MX-K50R

Amp. board

5

4

3

2

1

ABCD E F G

2-9

MX-K50R MX-K50R

CD board

Tuner boar

d

5

4

3

ECO board

2

1

2-10

HABC DEFG

PARTS LIST

[ MX-K50R ]

* All printed circuit boards and its assemblies are not available as service parts.

Area suffix

B ------------------------------- U.K.
E ----------- Continental Europe
EN ------------ Northern Europe
EV -------------- Eastern Europe

MX-K50R

- Contents -

Exploded view of general assembly and parts list (Block No.M1)
CD changer mechanism assembly and parts list (Block No.MA)
Cassette mechanism assembly and parts list (Block No.MP)
Electrical parts list (Block No.01~05)
Packing materials and accessories parts list (Block No.M3,M5)

3- 3
3- 5
3- 7
3- 8
3-17

3-1

MX-K50R

Exploded view of general assembly and parts list

5

CD changer unit

4

25

9

10

A

3

26

JVC

CD swith board

27

Block No.

50

B

28

30

M

29

M

1

31

M

B

37

38

Hphone jack
board

32

36

B

E

60

46

B

B

VFD

Front board

Front key board

Tuner board

only EUROPE

B

B

42

B

B

B

B

B

B

B

B

43

41

F

B

B

40

44

59

56

21

7

2

3

1

2

1

5

8

B

4

13

12

11

14

17

A

D

22 x2

6

B

D

23 x2

18

20

19

33

61

RFS5

B

RFS6

Cassette mechanism assembly

39

C

J

RFS7
RFS8

J

C

Trans. board

RFS2

C

C

57

47

B

E

45

B

AB C D E FG

3-3

MX-K50R

MX-K50R

Parts list (General assembly)

Item

A

A 6002-000126

B 6003-000276

C AH60-10107A

D 6003-000277

E 6002-000398

F 6003-000278

1 AH64-01654A

2 AH64-01655A

3 AH64-01650B

4 AH64-01651B

5 AH61-00552A

6 AH61-00553A

7 AH64-01653C

8 AH63-00390A

9 AH64-01649B

10 AH64-00462C

11 AH63-00389A

12 AH64-01660B

13 AH64-01665B

14 AH61-00930C

17 AH64-01659B

18 AH67-00147A

19 AH64-01661B

20 AH67-00148A

21 AH64-01649C

22 AH61-80030A

23 AH95-50001A

25 AH64-01664B

26 AH67-00151A

27 AH67-00149B

28 AH61-00931A

29 AH64-01657B

30 AH64-01658B

31 AH67-00150B

32 AH64-01662B

33 AH64-01656B

36 AH61-00662A

37 AH61-40014A

38 AH61-00021A

39 AH64-30416C

40 AH62-00043E

41 AH61-00655A

42 AH61-00656A

43 AH64-01666D

44 AH63-00250A

45 AH64-30390F

46 AH62-00042A

47 AH39-00257A

Parts number Parts name Area

Q'ty

SCREW

SCREW

SCREW

SCREW

SCREW

SCREW

WINDOW DOOR A

WINDOW DOOR B

CASSETTE DOOR A

CASSETTE DOOR B

DOOR SPRING A

DOOR SPRING B

WINDOW VFD

SHEET VFD

CD DOOR

BADGE JVC

SHEET VOLUME

KNOB VOLUME

DECO VOLUME

CAP DUMMY

KNOB SUBWOOFER

LENS SUBWOOFER

KNOB SOUND

LENS SOUND 1

FRONT CABINET

DAMPER ASSY 2

LATCH ASSY

BUTTON POWER 1

LENS POWER

LENS FUNCTION 1

HOLDER FUNCTION

BUTTON DISPLAY

BUTTON PRESET 1

LENS DISC 1

BUTTON DISC 1

BUTTON TAPE

HOLDER VFD 1

SUPPORT RIVET 1

SUPPORT PCB 1

BOTTOM CABINET 1

HEAT SINK 1

H.SINK BRAKET R

H.SINK BRAKET L 1

REAR CABINET

REAR COVER 1

TOP CABINET

HEAT-SINK 1

POWER CORD

69

2

FH M3X10 BLK

BH M3X10 YEL

4

M4X6 YEL

4

BH M3X12 YEL

3

BH M3X6 YEL

4

BH M3X14 YEL

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

1

1

1

1

1

1

1

Description

Block No. M1MM

E,EN,EV

Parts list (General assembly)

Item

A

47 AH39-00258Q

50 AH68-50275D

56 AH68-01028H

57 AH26-00110A

59 AH68-00486A

60 AH40-00011A

61 ---------------

Parts number Parts name Area

AH68-01083A

Q'ty

POWER CORD

CD STICKER

RATING LABEL

RATING LABEL

POWER TRANS

CAUTION LABEL B

TUNER PACK ASSY 1

CASSETTE MECHA

1

1

1

1

1

1

KST-MB011MS

1

ADR248DSW

Block No. M1MM

Description

B

B,E,EN

EV

EV

3-4

CD changer mechanism assembly and parts list

Block No.

8

2

M

MX-K50R

A

M

M

Tray stopper

7

3

6

5

4

19

21

1

27

15

Base main

16

12

13

10

11

17

20

18

CD sub board

9

26

14

24

22

23

25

3-5

MX-K50R

Parts list (CD changer mechanism)

Item

A

1 AH66-80022A

2 AH66-60034A

3 AH66-20186A

4 AH66-20187A

5 AH66-20188A

6 AH66-20189A

7 AH66-20190A

8 AH66-20191A

9 AH66-20192A

10 AH31-12001A

11 AH66-20193A

12 AH66-90056A

13 AH66-90055A

14 AH32-10001F

15 AH61-20428A-1

16 3302-000159

17 AH66-90053A

18 AH63-00068B

19 3404-000101

20 AH31-10021A

21 AH66-10008A

22 AH73-10031A

23 AH91-60150C

24 AH66-30098A

25 AH30-00007A

26 AH73-10034A

27 AH61-00255A

Parts number Parts name Area

SLIDE CAM

BELT LOAD

GEAR PULLEY

GEAR-LOAD

GEAR-CAM

GEAR-TRAY

GEAR-CONVERTOR

GEAR-SYNCRO

GEAR-WORM

LOADING MOTOR

GEAR-ROULETTE

TRAY-ROULETTE

TRAY DISC

SENSOR

BASE MAIN

MAGNET-FERRITE

TABTE-CHUCK UNI

SHEET CHUCK

SWICH MICRO

DC MORTOR

PULLEY-MOTOR

RUBBER-CD

SP MOTOR A SS'Y

LEVER-LIFTER

CD PICKUP

RUBBER-CD(G)

BRKT CHUCK

Q'ty

1

ABS HF-380 NTR

1

CR

1

POM (M90-44)WHT

1

POM (M90-44)BLK

1

POM(M90-44)WHT

1

POM(M90-44)BLK

1

POM (M90-44) WH

1

ABS HF-380 NTR

1

POM (M90-44)WHT

1

FF-030PN-09120

1

POM(M90-44)BLK

1

ABS XR-401 BLK

1

ABS XR-401 BLK

1

KPI-L06

1

CMS-300,BLK

1

3500-3800G,6P

1

BLK,CMS300

1

HYMERON,BLK,0.4

1

MLS-24

1

RF-500TB,9VDC

1

BLK,CMS-CR3

1

RCD380,RED

1

CMS-D73SG6U

1

ABS(BLK),CMS-30

1

SOH-AD3

1

CMS-300D,GREEN

1

SECL 0.8T

Block No. MAMM

Description

3-6

Cassette mechanism assembly and parts list

MX-K50R

M

M

P

1

ADR248DSW

1

Block No.

M

9

8

8

10

7

7

6

6

5

4

11

14

13

11

14

3

5

12

2

15

12

Note: Parts listed on the Parts List below can be supplied.
However, parts that are not listed below cannot be supplied
individually but only by purchasing the whole Cassette
Mechanism Assembly Unit. (When ordering, use the Parts No.
AH59-00102A for Cassette Mechanism Assembly Unit.)

Parts list(Cassette mechanism)

Item Parts number Parts name Area

A

1 AH81-00141A REC/PB HEAD 2

2 AH81-00422A MOTOR ASS'Y 1

3 AH81-00364A MAIN BELT 1 1

4 AH81-00365A MAIN BELT 2 1

5 AH81-00101A FR BELT 2

6 AH81-00102A SOLENOID 2

7 AH81-00282A SPRING 2

8 AH81-00366A PINCH R.ASS'Y 2

9 AH81-00284A E-HEAD 1

10 AH81-00367A MOTOR BRACKET 1

11 AH81-00286A SWICH 2

12 AH81-00287A PHOT SENSER 2

13 AH81-00288A CONNECTOR 1

14 AH81-00289A LEEF SW 3

15 AH81-00375A PCB 1

Q'ty Description

TC881CB

CCM09-120L2-2

ADR2400-MAIN0.5

ADR2400-MAIN1.3

ADR2400-FR34.7

ADR2400-1

S/PP/R(F)

ADR2400-PINCH(F)

TC2131F

ADR241SW-BRKT 110

ADR2400-MODE

ADR2400-SENSOR

ADR2400-16P

ADR2400-MXS00220
ADR2400-1PCB

Block No. MPMM

3-7

MX-K50R

ea

ea

Electrical parts list (Main board)

Item

A

AUX 3722-000379 PIN JACK 4P/2C 3.5MM

FCW1 3708-001223 CONNECTOR 13P 1.25MM

FCW2 3708-001094 CONNECTOR 13P 1.25MM

FCW3 3708-001577 CONNECTOR 30P 1.25MM

FC1L 2201-000368 C.CAPACITOR 220PF 10% 50V

FC1R 2201-000368 C.CAPACITOR 220PF 10% 50V

FC10L 2301-000387 M.CAPACITOR 150NF 5% 50V

FC10R 2301-000387 M.CAPACITOR 150NF 5% 50V

FC11 2401-001975 E.CAPACITOR 47UF 20% 16V

FC17 2401-001954 E.CAPACITOR 4.7UF 20% 50V

FC2L 2401-001912 E.CAPACITOR 1UF 20% 50V

FC2R 2401-001912 E.CAPACITOR 1UF 20% 50V

FC23 2401-000419 E.CAPACITOR 10UF 20% 16V

FC251 2401-001912 E.CAPACITOR 1UF 20% 50V

FC252 2401-001912 E.CAPACITOR 1UF 20% 50V

FC253 2401-001912 E.CAPACITOR 1UF 20% 50V

FC3L 2401-001912 E.CAPACITOR 1UF 20% 50V

FC3R 2401-001912 E.CAPACITOR 1UF 20% 50V

FC31 2401-000759 E.CAPACITOR 220NF 20% 50V

FC32 2401-001954 E.CAPACITOR 4.7UF 20% 50V

FC35 2301-000361 M.CAPACITOR 1.2NF 10% 50V

FC36 2301-000375 M.CAPACITOR 100NF 5% 50V

FC4L 2401-001912 E.CAPACITOR 1UF 20% 50V

FC4R 2401-001912 E.CAPACITOR 1UF 20% 50V

FC5L 2401-001912 E.CAPACITOR 1UF 20% 50V

FC50 2401-000419 E.CAPACITOR 10UF 20% 16V

FC51 2202-000806 C.CAPASITOR 220PF 10% 50V

FC52 2202-000806 C.CAPASITOR 220PF 10% 50V

FC53 2401-001912 E.CAPACITOR 1UF 20% 50V

FC54 2401-001912 E.CAPACITOR 1UF 20% 50V

FC57 2401-001975 E.CAPACITOR 47UF 20% 16V

FC6L 2401-002180 E.CAPACITOR 2.2UF 20% 50V

FC6R 2401-002180 E.CAPACITOR 2.2UF 20% 50V

FC7L 2401-001912 E.CAPACITOR 1UF 20% 50V

FC8L 2301-000454 M.CAPACITOR 5.6NF 10% 50V

FC8R 2301-000454 M.CAPACITOR 5.6NF 10% 50V

FC9 2401-000419 E.CAPACITOR 10UF 20% 16V

FC9L 2301-000387 M.CAPACITOR 150NF 5% 50V

FC9R 2301-000387 M.CAPACITOR 150NF 5% 50V

FD2 0401-000101 DIODE 1N4148 100V

FD3 0401-000101 DIODE 1N4148 100V

FIC1 1204-001776 IC TDA7442D 28P

FIC4 1201-000163 IC BA4560 8P

FQ1L 0504-000122 DI GI TRANSISTOR KSR1009Y

FQ1R 0504-000122 DIGI TRA NSISTOR KSR1009Y

FQ151 0504-000144 DI GI TRANSISTOR KSR2002

FQ152 0504-000118 DI GI TRANSISTOR KSR1003

FQ2 0504-001003 DIGI TRANSIS TOR KSR2003TA

FQ4 0501-000398 TRANSISTOR KSC945

FR1L 2001-000411 C ARBON RESISTOR 18K 5% 1/8W

FR1R 2001-000411 CARBON RESISTOR 18K 5% 1/8W

FR18 2001-000515 C ARBON RESISTOR 220 5% 1/8W

FR2L 2001-000411 C ARBON RESISTOR 18K 5% 1/8W

FR2R 2001-000411 CARBON RESISTOR 18K 5% 1/8W

FR20 2001-000515 C ARBON RESISTOR 220 5% 1/8W

FR21 2001-000864 C ARBON RESISTOR 56K 5% 1/8W

FR22 2001-000864 C ARBON RESISTOR 56K 5% 1/8W

FR23 2001-000773 C ARBON RESISTOR 470K 5% 1/8W

FR24 2001-000290 C ARBON RESISTOR 10K 5% 1/8W

FR25 2001-000429 C ARBON RESISTOR 1K 5% 1/8W

FR251 2001-000591 CARBON RESISTOR 3.3K 5% 1/8W

FR252 2001-000786 CARBON RESISTOR 47K 5% 1/8W

FR253 2001-000290 CARBON RESISTOR 10K 5% 1/8W

Parts number Parts name Ar

Block No. 01

Remarks

Item

A

FR26 2001-000850 CARBON RESI STOR 560K 5% 1/8W

FR27L 2001-000786 CARBON RESISTOR 47K 5% 1/8W

FR28 2001-000645 CARBON RESI STOR 330K 5% 1/8W

FR4L 2001-000780 CARBON RESI STOR 470 5% 1/8W

FR4R 2001-000780 CARBON RESISTOR 470 5% 1/8W

FR5L 2001-000864 CARBON RESI STOR 56K 5% 1/8W

FR5R 2001-000864 CARBON RESISTOR 56K 5% 1/8W

FR51 2001-000515 CARBON RESI STOR 220 5% 1/8W

FR52 2001-000786 CARBON RESI STOR 47K 5% 1/8W

FR53 2001-000515 CARBON RESI STOR 220 5% 1/8W

FR54 2001-000786 CARBON RESI STOR 47K 5% 1/8W

FR55 2001-000890 CARBON RESI STOR 6.8K 5% 1/8W

FR56 2001-000008 CARBON RESI STOR 15K 5% 1/8W

FR57 2001-000273 CARBON RESI STOR 100K 5% 1/8W

FR58 2001-000273 CARBON RESI STOR 100K 5% 1/8W

FR59 2001-000008 CARBON RESI STOR 15K 5% 1/8W

FR6L 2001-000411 CARBON RESI STOR 18K 5% 1/8W

FR6R 2001-000411 CARBON RESISTOR 18K 5% 1/8W

FR8L 2001-000802 CARBON RESI STOR 5.6K 5% 1/8W

FR8R 2001-000802 CARBON RESISTOR 5.6K 5% 1/8W

FR81 2001-000786 CARBON RESI STOR 47K 5% 1/8W

FR82 2001-000591 CARBON RESI STOR 3.3K 5% 1/8W

FR9 2001-000027 CARBON RESISTOR 100 5% 1/4W

FZD1 0403-000372 ZENER DIODE UZ9.1BM 9.1V

HCW2 AH39-00247A LEAD CONNECTOR

HCW3 3711-001062 CONNECTOR 6P 2MM

HC1 2401-000795 E.CAPACITOR 220UF 20% 16V

HC1L 2401-001912 E.CAPACITOR 1UF 20% 50V

HC1R 2401-001912 E.CAPACITOR 1UF 20% 50V

HC2 2401-000795 E.CAPACITOR 220UF 20% 16V

HC2L 2401-001164 E.CAPACITOR 33UF 20% 16V

HC2R 2401-001164 E.CAPACITOR 33UF 20% 16V

HC3L 2201-000642 C.CAPASITOR 0.68NF 10% 50V

HC3R 2201-000642 C.CAPASITOR 0.68NF 10% 50V

HD1 0401-000101 DIODE 1N4148 100V

HIC1 1201-000163 IC BA4560 8P

HJK1 3722-000351 MIC JACK 11P 3.5MM

HQ1L 0501-000407 T RANSISTOR KSD471A-Y

HQ1R 0501-000407 TRA NSISTOR KSD471A-Y

HRFS2 3602-000147 FUSE CLIP

HRFS5 3602-000147 FUSE CLIP

HRFS6 3602-000147 FUSE CLIP

HRFS7 3602-000147 FUSE CLIP

HRFS8 3602-000147 FUSE CLIP

HR1 2001-000028 CARBON RESI STOR 100 5% 1/2W

HR1L 2001-000449 CAR BON RESISTOR 2.2K 5% 1/8W

HR1R 2001-000449 CARBON RESISTOR 2.2K 5% 1/8W

HR2 2001-000110 CARBON RESI STOR 10 5% 1/2W

HR2L 2001-000449 CAR BON RESISTOR 2.2K 5% 1/8W

HR2R 2001-000449 CARBON RESISTOR 2.2K 5% 1/8W

HR20L 2001-000591 CARBO N RESISTOR 3.3K 5% 1/8W

HR20R 2001-000591 CAR BON RESISTOR 3.3K 5% 1/8W

HR3L 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

HR3R 2001-000734 CARBON RESISTOR 4.7K 5% 1/8W

HR4L 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

HR4R 2001-000290 CARBON RESISTOR 10K 5% 1/8W

HR5L 2001-000019 CAR BON RESISTOR 10 5% 1/2W

HR5R 2001-000019 CARBON RESISTOR 10 5% 1/2W

JCW1 3711-003107 CONNECTOR 3P 2.5MM

JCW2 3711-003111 CONNECTOR 6P 2.5MM

JCW3 3711-003107 CONNECTOR 3P 2.5MM

JC01L 2301-000393 M.CAPACITOR 18NF 10% 50V

JC01R 2301-000393 M.CAPACITOR 18NF 10% 50V

Parts number Parts name Ar

Remarks

3-8

MX-K50R

ea

ea

Electrical parts list (Main board)

Item

A

JC1L 2301-000361 M.CAPACITOR 1.2NF 10% 50V

JC1R 2301-000361 M.CAPACITOR 1.2NF 10% 50V

JC13L 2401-002180 E.CAPACITOR 2.2UF 20% 50V

JC13R 2401-002180 E.CAPACITOR 2.2UF 20% 50V

JC23L 2201-000674 C.CAPASITOR 0.82NF 10% 50V

JC23R 2201-000674 C.CAPASITOR 0.82NF 10% 50V

JC24L 2301-000361 M.CAPACITOR 1.2NF 10% 50V

JC24R 2301-000361 M.CAPACITOR 1.2NF 10% 50V

JC26 2301-000404 M.CAPACITOR 2.2NF 10% 50V

JC27 2301-000404 M.CAPACITOR 2.2NF 10% 50V

JC29 2301-000407 M.CAPACITOR 2.7NF 10% 50V

JC30L 2201-000368 C.CAPACITOR 220PF 10% 50V

JC30R 2201-000368 C.CAPACITOR 220PF 10% 50V

JC300 2201-000557 C.CAPASITOR 0.47NF 10% 50V

JC60L 2301-000379 M.CAPACITOR 10NF 10% 50V

JC60R 2301-000379 M.CAPACITOR 10NF 10% 50V

JC62L 2301-000375 M.CAPACITOR 100NF 5% 50V

JC62R 2301-000375 M.CAPACITOR 100NF 5% 50V

JC63L 2401-002180 E.CAPACITOR 2.2UF 20% 50V

JC63R 2401-002180 E.CAPACITOR 2.2UF 20% 50V

JC64L 2301-000375 M.CAPACITOR 100NF 5% 50V

JC64R 2301-000375 M.CAPACITOR 100NF 5% 50V

JC70 2201-000146 C.CAPACITOR 100PF 5% 50V

JC71 2201-000146 C.CAPACITOR 100PF 5% 50V

JC72 2201-000146 C.CAPACITOR 100PF 5% 50V

JC73 2401-000419 E.CAPACITOR 10UF 20% 16V

JC74 2401-000438 E.CAPACITOR 10UF 20% 25V

JC75 2401-001912 E.CAPACITOR 1UF 20% 50V

JC76 2401-000438 E.CAPACITOR 10UF 20% 25V

JC77 2202-000781 C.CAPASITOR 100PF 10% 50V

JC78 2401-001019 E.CAPACITOR 3.3UF 20% 50V

JD1 0401-000101 DIODE 1N4148 100V

JIC1 1201-001819 IC HA12235F 44P

JLP1L AH26-10002W TRAP COIL BIAS-TRAP105K

JLP1R AH26-10002W TRAP COIL BIAS-TRAP105K

JL1 2701-000298 INDUCTOR 470UH 10%

JL2 AH26-10003C TRAP COIL PCHNS-5371EQJ

JQ11L 0501-000407 TRAN SISTOR KSD471A-Y

JQ11R 0501-000407 TRANSISTO R KSD471A-Y

JQ14 0501-000610 TRANSISTOR KSA928A-Y

JQ15 0501-000369 TRANSISTOR KSC2331-Y

JQ16 0501-000398 TRANSISTOR KSC945

JQ18 0504-001003 DIGI TRANSISTOR KSR2003TA

JQ2L 0501-000010 TRANSISTOR KSC1008

JQ2R 0501-000010 TRANSISTOR KSC1008

JQ3L 0501-000010 TRANSISTOR KSC1008

JQ3R 0501-000010 TRANSISTOR KSC1008

JQ4L 0501-000398 TRANSISTOR KSC945

JQ4R 0501-000398 TRANSISTOR KSC945

JQ51 0504-001003 DIGI TRANSISTOR KSR2003TA

JQ6 0504-001003 DIGI TRANSISTOR KSR2003TA

JQ7 0501-000407 TRANSIST OR KSD471A-Y

JQ8 0504-001003 DIGI TRANSISTOR KSR2003TA

JR1L 2001-000890 CARBON RESISTOR 6.8K 5% 1/8W

JR1R 2001-000890 CARBON RESI STOR 6.8K 5% 1/8W

JR12L 2001-000734 CARB ON RESISTOR 4.7K 5% 1/8W

JR12R 2001-000734 CARBON RE SISTOR 4.7K 5% 1/8W

JR2L 2001-000890 CARBON RESISTOR 6.8K 5% 1/8W

JR2R 2001-000890 CARBON RESI STOR 6.8K 5% 1/8W

JR23 2001-000591 CARBON RESISTOR 3.3K 5% 1/8W

JR24L 2001-000302 CARB ON RESISTOR 10 5% 1/8W

JR24R 2001-000302 CARBON RE SISTOR 10 5% 1/8W

JR27 2001-000023 CARBON RESISTOR 47 5% 1/4W

Parts number Parts name Ar

Block No. 01

Remarks

Item

A

JR29 2001-000786 C ARBON RESISTOR 47K 5% 1/8W

JR3L 2001-000591 C ARBON RESISTOR 3.3K 5% 1/8W

JR3R 2001-000591 CARBON RESISTOR 3.3K 5% 1/8W

JR30 2001-000591 C ARBON RESISTOR 3.3K 5% 1/8W

JR31 2001-000734 C ARBON RESISTOR 4.7K 5% 1/8W

JR32 2001-000456 C ARBON RESISTOR 2.2 5% 1/4W

JR33 2001-000290 C ARBON RESISTOR 10K 5% 1/8W

JR37L 2001-000786 CARBON RESI STOR 47K 5% 1/8W

JR37R 2001-000786 CARBON RES ISTOR 47K 5% 1/8W

JR39 2001-000290 C ARBON RESISTOR 10K 5% 1/8W

JR4 2001-000522 CARBON RESISTOR 22K 5% 1/8W

JR40L 2001-000302 CARBON RESI STOR 10 5% 1/8W

JR40R 2001-000302 CARBON RES ISTOR 10 5% 1/8W

JR41L 2001-000008 CARBON RESI STOR 15K 5% 1/8W

JR41R 2001-000008 CARBON RES ISTOR 15K 5% 1/8W

JR6L 2001-000449 C ARBON RESISTOR 2.2K 5% 1/8W

JR6R 2001-000449 CARBON RESISTOR 2.2K 5% 1/8W

JR63L 2001-000977 CARBON RESI STOR 8.2K 5% 1/8W

JR63R 2001-000977 CARBON RESISTOR 8.2K 5% 1/8W

JR64L 2001-000241 CARBON RESI STOR 1.5K 5% 1/8W

JR64R 2001-000241 CARBON RES ISTOR 1.5K 5% 1/8W

JR66L 2001-000449 CARBON RESI STOR 2.2K 5% 1/8W

JR66R 2001-000449 CARBON RESISTOR 2.2K 5% 1/8W

JR67L 2001-000802 CARBON RESI STOR 5.6K 5% 1/8W

JR67R 2001-000802 CARBON RES ISTOR 5.6K 5% 1/8W

JR69 2001-000429 C ARBON RESISTOR 1K 5% 1/8W

JR70 2001-000281 C ARBON RESISTOR 100 5% 1/8W

JR71 2001-000290 C ARBON RESISTOR 10K 5% 1/8W

JR72 2001-000281 C ARBON RESISTOR 100 5% 1/8W

JR73 2001-000435 C ARBON RESISTOR 1M 5% 1/8W

JR74 2001-000522 C ARBON RESISTOR 22K 5% 1/8W

JR75 2001-000734 C ARBON RESISTOR 4.7K 5% 1/8W

JSR2L 2103-000248 SEMI V.RESISTOR 200K 1/10W

JSR2R 2103-000248 SEMI V.RESISTOR 200K 1/10W

JW64 2001-000003 CAR BON RESISTOR 330 5% 1/8W

JW66 2001-000003 CAR BON RESISTOR 330 5% 1/8W

OCW2 AH39-00096B LEAD CONNECTOR

OC1 2202-000807 C.CAPACITOR 22NF +80-20% 25V

OC2 2201-000483 C.CAPACITOR 0.033NF 5% 50V

OC3 2401-000240 E.CAPACITOR 100MF 20% 10V

OIC1 AH14-10004R IC M74HC04 14P

OJACK 0603-001069 OPTICAL JACK 5V 8MB/S 17DBM

OLPF 2901-001139 CERAMIC FILTER 50V 5A

PCW1 3711-003112 CONNECTOR 8P 2.5MM

RBD1 0402-000450 BR IDGE DIODE

A

RBD2 0402-001258 BR IDGE DIODE

A

RCW2 3711-000190 CONNECTOR 2P 7.92MM

RCW6 3711-001137 CONNECTOR 8P 2MM

RC1 2401-001928 E.CAPACITOR

A

RC11 2201-000161 C.CAPASITOR

A

RC13 2401-000230 E.CAPACITOR 100UF 20% 100V

RC14 2401-000795 E.CAPACITOR 220UF 20% 16V

RC19 2401-001895 E.CAPACITOR 100UF 20% 16V

RC2 2401-001928 E.CAPACITOR

A

RC20 2401-001895 E.CAPACITOR 100UF 20% 16V

RC3 2401-003381 E.CAPACITOR

A

RC37 2401-000438 E.CAPACITOR 10UF 20% 25V

RC4 2401-003381 E.CAPACITOR

A

RC5 2401-001954 E.CAPACITOR 4.7UF 20% 50V

RC6 2401-000907 E.CAPACITOR 22UF 20% 16V

RC7 2401-001912 E.CAPACITOR 1UF 20% 50V

RC8 2401-001954 E.CAPACITOR 4.7UF 20% 50V

RC81 2201-000161 C.CAPASITOR

A

Parts number Parts name Ar

Remarks

PBL403 200V 4A

GBU606 6A 600V

2200UF 20% 35V

10NF 500V

2200UF 20% 35V

3300UF 20% 63V

3300UF 20% 63V

10NF 500V

3-9

MX-K50R

ea

Electrical parts list (Main board)

Item

A

RD1 0402-000127 DIODE 1N4002 100V 1A

RD10 0402-000127 DIODE 1N4002 100V 1A

RD2 0402-000127 DIODE 1N4002 100V 1A

RD3 0402-000127 DIODE 1N4002 100V 1A

RD30 0402-000151 DIODE 1N5392 100V 1.5A

RD31 0402-000151 DIODE 1N5392 100V 1.5A

RD32 0402-000151 DIODE 1N5392 100V 1.5A

RD5 0402-000127 DIODE 1N4002 100V 1A

RD7 0401-000101 DIODE 1N4148 100V

RD8 0402-000151 DIODE 1N5392 100V 1.5A

RD9 0402-000127 DIODE 1N4002 100V 1A

RFS2 3601-000263 FUSE

A

RFS5 3601-000282 FUSE

A

RFS6 3601-000282 FUSE

A

RFS7 3601-000301 FUSE

A

RFS8 3601-000301 FUSE

A

RF23 2008-000135 FUSE RESISTORA1OHM 5% 1/2W

RIC1 1203-001653 IC L4959 15P

RJW1 AH39-50001H LEAD FASTEN

RL1 2701-000298 I NDUCTOR 470UH 10%

RQ1 0501-000610 TRANS ISTOR KSA928A-Y

RQ3 0501-000331 TRANS ISTOR KSC1009-Y

RQ4 0501-000294 TRANS ISTOR KSA708-Y

RR1 2003-000701 OMF RESISTOR 470 5% 2W

RR10 2001-000055 CAR BON RESISTOR 4.7K 5% 1/4W

RR11 2001-000591 CARBON RESISTOR 3.3K 5% 1/8W

RR12 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

RR13 2001-000111 CARBON RESISTOR 150 5% 1/4W

RR16 2001-000038 CAR BON RESISTOR 390 5% 1/4W

RR17 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

RR18 2002-000126 CAR BON RESISTOR 2.2M 5% 1/2W

RR20 2001-000786 CAR BON RESISTOR 47K 5% 1/8W

RR3 2001-000023 CARBON RESI STOR 47 5% 1/4W

RR4 2001-000023 CARBON RESI STOR 47 5% 1/4W

RR5 2001-000613 CARBON RESISTOR 3.9K 5% 1/8W

RR51 2001-000890 CARBON RESISTOR 6.8K 5% 1/8W

RR52 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

RR6 2001-000734 CARBON RESI STOR 4.7K 5% 1/8W

RR8 2003-000455 OMF RESISTOR 100 5% 2W

RR800 2001-000660 CARBON RESISTOR 33K 5% 1/8W

RR9 2001-000563 CARBON RESISTOR 27K 5% 1/8W

RW1 AH39-00245A LE AD CONNECTO R

RW2 AH39-00249A LE AD CONNECTO R

RZD1 0403-000379 ZENER DIODE UZP12B 12V 1W

RZD2 0403-000570 ZENER DIODE UZP18B 18V 1W

RZD3 0403-000570 ZENER DIODE UZP18B 18V 1W

RZD4 0403-000354 ZENER DIODE UZ5.1B 5.1V

RZD5 0403-001010 ZENER DIODE UZP5.6B 1W

R500 2001-000435 CARBON R ESISTOR 1M 5% 1/8W

TC101 2201-000783 C.CAPACITOR 100NF 50V

TC102 2201-000783 C.CAPACITOR 100NF 50V

UD3 0401-000101 DIODE 1N4148 100V

Parts number Parts name Ar

Block No. 01

Remarks

250V 15A

250V 4A

250V 4A

250V 6.3A

250V 6.3A

3-10

MX-K50R

ea

ea

Electrical parts list (Front board)

Item

A

ECW1 AH39-00249B LEAD CONNECTOR 5P

MR16 2001-000855 CARBON RESISTOR 560 5% 1/4W

MR17 2001-000855 CARBON RESISTOR 560 5% 1/4W

R-EYE AC59-60060A MODULE- REMOCON GP1U281R SHARP

UCW1 3708-000492 CONNECTOR 9P 1.25MM

UCW2 3708-001691 CONNECTOR 18P 1.25MM

UCW3 3708-000454 CONNECTOR 22P 1.25MM

UCW4 3708-000451 CONNECTOR 16P 1.25MM

UCW5 3708-000492 CONNECTOR 9P 1.25MM

UCW6 3708-001488 CONNECTOR 30P 1.25MM

UCW7 3708-001692 CONNECTOR 18P 1.25MM

UC1 2401-000475 E.CAPACITOR 10UF 20% 50V

UC10 2401-000240 E.CAPACITOR 100UF 20% 10V

UC11 2401-000759 E.CAPACITOR 220NF 20% 50V

UC12 2401-001355 E.CAPACITOR 470UF 20% 10V

UC15 2201-000565 C.CAPACIT OR 47NF 50V

UC17 2401-001954 E.CAPACITOR 4.7UF 20% 50V

UC19 2201-000565 C.CAPACIT OR 47NF 50V

UC2 2201-000565 C.CAPACITOR 47NF 50V

UC20 2201-000163 C.CAPASITOR 10NF +80-20% 50V

UC21 2201-000163 C.CAPASITOR 10NF +80-20% 50V

UC3 2401-000475 E.CAPACITOR 10UF 20% 50V

UC30 2202-000781 C.CAPASITOR 100PF 10% 50V

UC32 2401-001364 E.CAPACITOR 470UF 20% 16V

UC4 2201-000565 C.CAPACITOR 47NF 50V

UC5 2201-000565 C.CAPACITOR 47NF 50V

UC6 2201-000423 C.CAPASITOR 0.027NF 5% 50V

UC7 2201-000423 C.CAPASITOR 0.027NF 5% 50V

UC8 2201-000247 C.CAPASITOR 0.015NF 5% 50V

UC9 2201-000247 C.CAPASITOR 0.015NF 5% 50V

UD1 0401-000101 DIODE 1N4148 100V

UD11 0402-000127 DIOD E 1N4002 100V 1A

UD12 0402-000127 DIOD E 1N4002 100V 1A

UD13 0402-000127 DIOD E 1N4002 100V 1A

UD14 0401-000101 DIOD E 1N4148 100V

UD15 0401-000101 DIOD E 1N4148 100V

UD16 0402-000127 DIOD E 1N4002 100V 1A

UD17 0402-000127 DIOD E 1N4002 100V 1A

UD18 0402-000127 DIOD E 1N4002 100V 1A

UD19 0402-000127 DIOD E 1N4002 100V 1A

UD20 0402-000127 DIOD E 1N4002 100V 1A

UD5 0401-000101 DIODE 1N4148 100V

UD6 0401-000101 DIODE 1N4148 100V

UIC1 AH11-00037C IC MASK ROM LC866P548V-5V95

UIC2 0904-001316 IC M66010 24BIT 32P

ULD1 0601-001238 LED LTL-1CHESS-UA

ULD10 0601-001238 LED LTL-1CHESS-UA

ULD11 0601-001238 LED LTL-1CHESS-UA

ULD12 0601-001238 LED LTL-1CHESS-UA

ULD13 0601-001238 LED LTL-1CHESS-UA

ULD14 0601-001238 LED LTL-1CHESS-UA

ULD15 0601-001238 LED LTL-1CHESS-UA

ULD16 0601-001238 LED LTL-1CHESS-UA

ULD2 0601-001238 LED LTL-1CHESS-UA

ULD3 0601-001238 LED LTL-1CHESS-UA

ULD4 0601-001238 LED LTL-1CHESS-UA

ULD5 0601-001238 LED LTL-1CHESS-UA

ULD6 0601-001238 LED LTL-1CHESS-UA

ULD7 0601-001238 LED LTL-1CHESS-UA

ULD8 0601-001238 LED LTL-1CHESS-UA

ULD9 0601-001238 LED LTL-1CHESS-UA

UQ1 0504-000117 DIGI TRANSISTOR KSR1002

UQ10 0501-000610 T RANSISTOR KSA928A-Y 1W

Parts number Parts name Ar

Block No. 02

Remarks

Item

A

UQ11 0501-000610 T RANSISTOR KSA928A-Y 1W

UQ12 0504-000117 D IGI TRANSISTOR KSR1002

UQ13 0504-000117 D IGI TRANSISTOR KSR1002

UQ14 0504-000117 D IGI TRANSISTOR KSR1002

UQ15 0504-000117 D IGI TRANSISTOR KSR1002

UQ17 0504-000118 D IGI TRANSISTOR KSR1003

UQ18 0501-000398 T RANSISTOR KSC945

UQ2 0504-000117 DIGI TRANSISTOR KSR1002

UQ3 0504-000117 DIGI TRANSISTOR KSR1002

UQ4 0504-000117 DIGI TRANSISTOR KSR1002

UQ5 0504-000118 DIGI TRANSISTOR KSR1003

UQ6 0501-000398 TRANSISTOR KSC945

UQ7 0504-000118 DIGI TRANSISTOR KSR1003

UQ8 0501-000610 TRANSISTOR KSA928A-Y 1W

UQ9 0504-000118 DIGI TRANSISTOR KSR1003

UR1 2001-000003 CARBON RESISTOR 330 5% 1/8W

UR10 2001-000258 CAR BON RESISTOR 1.8K 5% 1/8W

UR11 2001-000449 CAR BON RESISTOR 2.2K 5% 1/8W

UR110 2001-000995 CARBON RESISTOR 820 5% 1/8W

UR111 2001-000855 CARBON RESISTOR 560 5% 1/4W

UR112 2001-000241 CARBON RESISTOR 1.5K 5% 1/8W

UR113 2001-000855 CARBON RESISTOR 560 5% 1/4W

UR114 2001-000258 CARBON RESISTOR 1.8K 5% 1/8W

UR115 2001-000855 CARBON RESISTOR 560 5% 1/4W

UR116 2001-000591 CARBON RESISTOR 3.3K 5% 1/8W

UR117 2001-000449 CARBON RESISTOR 2.2K 5% 1/8W

UR118 2001-000890 CARBON RESISTOR 6.8K 5% 1/8W

UR119 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR12 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR120 2001-000890 CARBON RESISTOR 6.8K 5% 1/8W

UR121 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR122 2001-000522 CARBON RESISTOR 22K 5% 1/8W

UR123 2001-000010 CARBON RESISTOR 68K 5% 1/8W

UR124 2001-000734 CARBON RESISTOR 4.7K 5% 1/8W

UR125 2001-000734 CARBON RESISTOR 4.7K 5% 1/8W

UR126 2001-000591 CARBON RESISTOR 3.3K 5% 1/8W

UR127 2001-000449 CARBON RESISTOR 2.2K 5% 1/8W

UR128 2001-000258 CARBON RESISTOR 1.8K 5% 1/8W

UR129 2001-000241 CARBON RESISTOR 1.5K 5% 1/8W

UR13 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR130 2001-000221 CARBON RESISTOR 1.2K 5% 1/8W

UR131 2001-000429 CARBON RESISTOR 1K 5% 1/8W

UR14 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR15 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR150 2001-000786 CARBON RESISTOR 47K 5% 1/8W

UR151 2001-000786 CARBON RESISTOR 47K 5% 1/8W

UR152 2001-000786 CARBON RESISTOR 47K 5% 1/8W

UR153 2001-000786 CARBON RESISTOR 47K 5% 1/8W

UR154 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR16 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR162 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR164 2001-000515 CARBON RESISTOR 220 5% 1/8W

UR17 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR18 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR19 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR196 2001-000855 CARBON RESISTOR 560 5% 1/4W

UR2 2001-000995 CARBON RESISTOR 820 5% 1/8W

UR20 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR201 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR202 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR203 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR204 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR205 2001-000290 CARBON RESISTOR 10K 5% 1/8W

Parts number Parts name Ar

Remarks

3-11

MX-K50R

ea

ea

Electrical parts list (Front board)

Item

A

UR206 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR207 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR208 2001-000429 CARBON RESISTOR 1K 5% 1/8W

UR209 2001-000857 CARBON RESISTOR 560 5% 1/8W

UR21 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR22 2001-000734 CARBON RESISTOR 4.7K 5% 1/8W

UR23 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR24 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR25 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR26 2001-000734 CARBON RESISTOR 4.7K 5% 1/8W

UR27 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR28 2001-000786 CAR BON RESISTOR 47K 5% 1/8W

UR29 2001-000786 CAR BON RESISTOR 47K 5% 1/8W

UR30 2001-000786 CAR BON RESISTOR 47K 5% 1/8W

UR31 2001-000786 CAR BON RESISTOR 47K 5% 1/8W

UR32 2001-000786 CAR BON RESISTOR 47K 5% 1/8W

UR33 2001-000786 CAR BON RESISTOR 47K 5% 1/8W

UR34 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR35 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR36 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR37 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR38 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR39 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR4 2001-000855 CARBON RESISTOR 560 5% 1/4W

UR40 2001-000591 CAR BON RESISTOR 3.3K 5% 1/8W

UR41 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

UR42 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

UR43 2001-000435 CAR BON RESISTOR 1M 5% 1/8W

UR44 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

UR45 2001-000508 CAR BON RESISTOR 220K 5% 1/8W

UR46 2001-000793 CAR BON RESISTOR 47 5% 1/8W

UR47 2001-000850 CAR BON RESISTOR 560K 5% 1/8W

UR48 2001-000295 CAR BON RESISTOR 10M 5% 1/8W

UR49 2001-001178 CAR BON RESISTOR 680 5% 1/2W

UR5 2001-000855 CARBON RESISTOR 560 5% 1/4W

UR50 2001-001178 CAR BON RESISTOR 680 5% 1/2W

UR51 2001-001178 CAR BON RESISTOR 680 5% 1/2W

UR52 2001-000449 CAR BON RESISTOR 2.2K 5% 1/8W

UR54 2001-000995 CAR BON RESISTOR 820 5% 1/8W

UR56 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

UR57 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

UR58 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

UR59 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

UR6 2001-000855 CARBON RESISTOR 560 5% 1/4W

UR60 2001-000429 CARBON RESISTOR 1K 5% 1/8W

UR61 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

UR62 2001-000429 CARBON RESISTOR 1K 5% 1/8W

UR63 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR64 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR65 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR66 2001-000290 CARBON RESISTOR 10K 5% 1/8W

UR67 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR68 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR69 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR7 2001-000429 CARBON RESISTOR 1K 5% 1/8W

UR70 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR71 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR72 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR73 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

UR74 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR75 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR76 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR77 2001-000005 CAR BON RESISTOR 390 5% 1/8W

Parts number Parts name Ar

Block No. 02

Remarks

Item

A

UR79 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR8 2001-000221 CARBON RESISTOR 1.2K 5% 1/8W

UR80 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR81 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR82 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR83 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR84 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR85 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR86 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR87 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR88 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR89 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR9 2001-000241 CARBON RESISTOR 1.5K 5% 1/8W

UR90 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR91 2001-000290 CAR BON RESISTOR 10K 5% 1/8W

UR92 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

UR93 2001-000995 CAR BON RESISTOR 820 5% 1/8W

UR94 2001-000221 CAR BON RESISTOR 1.2K 5% 1/8W

UR95 2001-000522 CAR BON RESISTOR 22K 5% 1/8W

USR1 2103-000341 SEMI V.RESISTOR 2K 30% 1/10W

USW1 3404-000165 TACT SWITCH 12V 50MA 160GF

USW10 3404-000165 TACT SWITCH 12V 50MA 160GF

USW11 3404-000165 TACT SWITCH 12V 50MA 160GF

USW12 3404-000165 TACT SWITCH 12V 50MA 160GF

USW13 3404-000165 TACT SWITCH 12V 50MA 160GF

USW14 3404-000165 TACT SWITCH 12V 50MA 160GF

USW15 3404-000165 TACT SWITCH 12V 50MA 160GF

USW16 3404-000165 TACT SWITCH 12V 50MA 160GF

USW17 3404-000165 TACT SWITCH 12V 50MA 160GF

USW18 3404-000165 TACT SWITCH 12V 50MA 160GF

USW19 3404-000165 TACT SWITCH 12V 50MA 160GF

USW2 3404-000165 TACT SWITCH 12V 50MA 160GF

USW20 3404-000165 TACT SWITCH 12V 50MA 160GF

USW21 3404-000165 TACT SWITCH 12V 50MA 160GF

USW22 3404-000165 TACT SWITCH 12V 50MA 160GF

USW23 3404-000165 TACT SWITCH 12V 50MA 160GF

USW24 3404-000165 TACT SWITCH 12V 50MA 160GF

USW25 3404-000165 TACT SWITCH 12V 50MA 160GF

USW26 3404-000165 TACT SWITCH 12V 50MA 160GF

USW27 3404-000165 TACT SWITCH 12V 50MA 160GF

USW28 3404-000165 TACT SWITCH 12V 50MA 160GF

USW29 3404-000165 TACT SWITCH 12V 50MA 160GF

USW3 3404-000165 TACT SWITCH 12V 50MA 160GF

USW30 3404-000165 TACT SWITCH 12V 50MA 160GF

USW31 3404-000165 TACT SWITCH 12V 50MA 160GF

USW32 3404-000165 TACT SWITCH 12V 50MA 160GF

USW4 3404-000165 TACT SWITCH 12V 50MA 160GF

USW5 3404-000165 TACT SWITCH 12V 50MA 160GF

USW6 3404-000165 TACT SWITCH 12V 50MA 160GF

USW7 3404-000165 TACT SWITCH 12V 50MA 160GF

USW8 3404-000165 TACT SWITCH 12V 50MA 160GF

USW9 3404-000165 TACT SWITCH 12V 50MA 160GF

UVR1 3406-001071 ROTARY SWITCH

UVR2 3406-001047 R OTARY SWITCH

UVR3 3406-001047 ROTARY SWITCH

UX1 2802-000181 RESONATOR 6MHZ 0.3%

UX2 2801-001394 CRYSTAL 32.768KHZ

VFD AH07-00040A VF DISPLAY BJ821GNK

Parts number Parts name Ar

Remarks

3-12

MX-K50R

ea

ea

Electrical parts list (Amp board)

Item

A

ACE1 2201-000381 C.CAPACITOR 22NF 50V

ACE2 2201-000381 C.CAPACITOR 22NF 50V

ACW1 3708-001094 CONNECTOR 13P 1.25MM

ACW2 3711-001011 CONNECTOR 5P 2.5MM

AC1L 2201-000368 C.CAPACITOR 220PF 10% 50V

AC1R 2201-000368 C.CAPACITOR 220PF 10% 50V

AC15L 2301-000375 M.CAPACITOR 100NF 10% 50V

AC15R 2301-000375 M.CAPACITOR 100NF 10% 50V

AC2L 2401-000357 E.CAPACITOR 100UF 0.2 50V

AC2R 2401-000357 E.CAPACITOR 100UF 0.2 50V

AC20 2401-000871 E.CAPACITOR 220UF 20% 50V

AC22 2401-001912 E.CAPACITOR 1UF 20% 50V

AC23 2401-001912 E.CAPACITOR 1UF 20% 50V

AC3R 2401-000385 E.CAPACITOR 10UF 20% 100V

AC300 2401-001364 E.CAPACITOR 470UF 20% 16V

AC301 2401-000385 E.CAPACITOR 10UF 20% 100V

AC302 2401-000385 E.CAPACITOR 10UF 20% 100V

AC4L 2401-001154 E.CAPACITOR 33UF 20% 10V

AC4R 2401-001154 E.CAPACITOR 33UF 20% 10V

AC5L 2201-000838 C.CAPACITOR 3PF 0.3PF 50V

AC5R 2201-000838 C.CAPACITOR 3PF 0.3PF 50V

AC56L 2201-000532 M.CAPACITOR

AC56R 2201-000532 M.CAPACITOR

AC57L 2201-000532 M.CAPACITOR

AC57R 2201-000532 M.CAPACITOR

AC6L 2401-000385 E.CAPACITOR 10UF 20% 100V

AD5 0402-000127 DIODE 1N4002 100V 1A

AIC1 1201-001599 IC

A

AL1L AH27-90001A SPRING COIL 2.2UH

AL1R AH27-90001A SPRING COIL 2.2UH

AL2 AH27-90001A SPRING COIL 300V

AL3 AH27-90001A SPRING COIL 300V

AQ2L 0501-000407 TRANS ISTOR KSD471-YTA 40V

AQ2R 0501-000407 TRANSISTOR KSD471-YTA 40V

AQ300 0501-000398 TRANSI STOR KSC945-YTA

AQ301 0501-000398 TRANSI STOR KSC945-YTA

AQ302 0501-000303 TRANSI STOR KSA733YTA

AQ313 0501-000398 TRANSI STOR KSC945-YTA

AQ5 0501-000407 TRANSISTOR KSD471-YTA 40V

AQ6 0501-000010 TRANSISTOR KSC1008-YTA

AQ7 0501-000407 TRANSISTOR KSD471-YTA 40V

AQ8 0501-000610 TRANSISTOR KSA928A

ARL1 3501-001197 RELAY OSA-SS-212DM3

AR1L 2001-000290 CARBON RESISTOR 10K 5% 1/8W

AR1R 2001-000290 CARBON R ESISTOR 10K 5% 1/8W

AR13 2003-000008 OMF RESISTOR 100 5% 1W

AR15L 2003-000689 OMF RESISTOR 4.7 5% 1W

AR15R 2003-000689 O MF RESISTOR 4.7 5% 1W

AR2L 2001-000221 CARBON RESISTOR 1.2K 5% 1/8W

AR2R 2001-000221 CARBON R ESISTOR 1.2K 5% 1/8W

AR20 2001-000591 CARBON RESISTOR 3.3K 5% 1/8W

AR21 2001-000429 CARBON RESISTOR 1K 5% 1/8W

AR25 2001-000515 CARBON RESISTOR 220 5% 1/8W

AR26 2001-000273 CARBON RESISTOR 100K 5% 1/8W

AR3L 2001-000864 CARBON RESISTOR 56K 5% 1/8W

AR3R 2001-000864 CARBON R ESISTOR 56K 5% 1/8W

AR300 2001-000522 CARBON RESISTOR 22K 5% 1/8W

AR301 2001-000660 CARBON RESISTOR 33K 5% 1/8W

AR302 2001-000522 CARBON RESISTOR 22K 5% 1/8W

AR303 2001-000734 CARBON RESISTOR 4.7K 5% 1/8W

AR304 2001-000290 CARBON RESISTOR 10K 5% 1/8W

AR305 2001-000522 CARBON RESISTOR 22K 5% 1/8W

AR306 2001-000864 CARBON RESISTOR 56K 5% 1/8W

Parts number Parts name Ar

Block No. 03

STK402-120 SIP 15P

Remarks

Item

A

AR307 2001-000864 CARBON RESIS TOR 56K 5% 1/8W

AR308 2001-000734 CARBON RESIS TOR 4.7K 5% 1/8W

AR309 2001-000786 CARBON RESIS TOR 47K 5% 1/8W

AR310 2001-000786 CARBON RESIS TOR 47K 5% 1/8W

AR311 2001-000449 CARBON RESIS TOR 2.2K 5% 1/8W

AR32 2001-000591 CARBON RESIST OR 3.3K 5% 1/8W

AR33 2001-000591 CARBON RESIST OR 3.3K 5% 1/8W

AR35 2001-000429 CARBON RESIST OR 1K 5% 1/8W

AR36 2001-000429 CARBON RESIST OR 1K 5% 1/8W

AR4L 2003-000390 OMF RESISTOR 0.27OHM 5% 2W

AR4R 2003-000390 O MF RESISTOR 0.27OHM 5% 2W

AR5L 2003-000390 OMF RESISTOR 0.27OHM 5% 2W

AR5R 2003-000390 O MF RESISTOR 0.27OHM 5% 2W

AR56L 2001-000864 CARBON RESIS TOR 56K 5% 1/8W

AR56R 2001-000864 CARBON RESIST OR 56K 5% 1/8W

AR6L 2001-000017 CARBON RESIST OR 4.7 5% 1/4W

AR6R 2001-000017 CA RBON RESISTOR 4.7 5% 1/4W

AR7L 2001-000449 CARBON RESIST OR 2.2K 5% 1/8W

AR7R 2001-000449 CA RBON RESISTOR 2.2K 5% 1/8W

AR77 2001-000065 CARBON RESIST OR 10K 5% 1/4W

AR78 2003-000008 OMF RESISTOR 100 5% 1W

AR8L 2001-000591 CARBON RESIST OR 3.3K 5% 1/8W

AR8R 2001-000591 CA RBON RESISTOR 3.3K 5% 1/8W

SPK1 3716-001132 TERMINAL BLOCK SOLDER 4P

Parts number Parts name Ar

Remarks

3-13

MX-K50R

ea

Electrical parts list (ECO board)

Item

A

ERL3 AH27-10001F CHOKE COIL 27UH

ERL4 AH27-10001F CH OKE COIL 27UH

P/T AH26-80144W POWER TRANS

A

PJ2 3711-000190 CON NECTO R 2P 7.92MM

PJ3 AH37-22001N CONNECTO R 2P

RCW5 3711-000967 C ONNECT OR 4P 2MM

RC20 2401-001969 E.CAPACITOR 470UF 20% 25V

RC21 2401-001954 E.CAPACITOR 4.7UF 20% 50V

RC22 2401-001912 E.CAPACITOR 1UF 20% 50V

RD20 0402-000127 DIODE 1N4002 100V 1A

RD21 0402-000127 DIODE 1N4002 100V 1A

RD22 0402-000127 DIODE 1N4002 100V 1A

RD23 0402-000127 DIODE 1N4002 100V 1A

RD24 0402-000127 DIODE 1N4002 100V 1A

RD25 0402-000127 DIODE 1N4002 100V 1A

RD26 0401-000101 DIODE 1N4148 100 200M

RD27 0402-000127 DIODE 1N4002 100V 1A

RIC2 AC14-12001G IC

A

RL2 3501-001159 RELAY SDT-SS-112DM

RQ20 0501-000407 T RANSISTOR KSD471A-Y

RR22 2001-000429 CAR BON RESISTOR 1K 5% 1/8W

RR23 2001-000890 CAR BON RESISTOR 6.8K 5% 1/8W

RR24 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

RR25 2001-000734 CAR BON RESISTOR 4.7K 5% 1/8W

RR26 2001-001195 CAR BON RESISTOR 82 5% 1/2W

RZD10 0403-000354 Z ENER DIODE UZ5.1B 500MW

Parts number Parts name Ar

Block No. 04

220V 50HZ

KA78L05Z

Remarks

3-14

MX-K50R

ea

Q

Q

Q

ea

Electrical parts list (CD board)

Item

A

CW101 3708-001252 CONNECTOR 16P 1MM

CW102 AH39-20561P LEAD CONNECTOR 6P 150MM

CW103 3708-001131 CONNECTOR 5P

CW104 3711-003379 CONNECTOR

CW105 3708-001438 COMM ECTOR 22P 1.25MM

CW106 AH39-20025S LEAD CONNECTOR

CW107 3711-000906 CONNECTOR 3P 2MM

C101 2401-000240 E.CAPACITOR 100UF 20% 10V

C102 2203-000440 CHIP CAPACITOR 1NF 50V 1608

C103 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C104 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C105 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C106 2203-001140 CHIP CAPACITOR 68NF 16V 1608

C107 2401-000240 E.CAPACITOR 100UF 20% 10V

C108 2401-000240 E.CAPACITOR 100UF 20% 10V

C111 2203-000888 CHIP CAPACITOR 4.7NF 50V 1608

C112 2203-000888 CHIP CAPACITOR 4.7NF 50V 1608

C113 2202-000780 C.CAPACITO R 100NF +80-20% 50V

C114 2401-001954 E.CAPACITOR 4.7UF 20% 50V

C115 2203-000206 CHIP CAPACITOR 100NF 50V 2012

C116 2203-000206 CHIP CAPACITOR 100NF 50V 2012

C117 2203-000440 CHIP CAPACITOR 1NF 50V 1608

C118 2203-000206 CHIP CAPACITOR 100NF 50V 2012

C119 2203-000800 CHIP CAPACITOR 33NF 25V 1608

C120 2401-001968 E.CAPACITOR 470NF 20% 50V

C121 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C122 2203-001140 CHIP CAPACITOR 68NF 16V 1608

C123 2401-000419 E.CAPACITOR 10UF 20% 16V

C124 2203-000206 CHIP CAPACITOR 100NF 50V 2012

C124A 2203-001063 CHIP CAPACITOR 56NF 16V 1608

C126 2203-000491 CHIP CAPACITOR 2.2NF 50V 1608

C127 2203-000592 CHIP CAPACITOR 0.22NF 50V 1608

C128 2203-000800 CHIP CAPACITOR 33NF 25V 1608

C129 2203-000206 CHIP CAPACITOR 100NF 50V 2012

C130 2203-000206 CHIP CAPACITOR 100NF 50V 2012

C131 2203-000178 CHIP CAPACITOR 100NF 25V 1608

C132 2203-000178 CHIP CAPACITOR 100NF 25V 1608

C133 2401-000240 E.CAPACITOR 100UF 20% 10V

C134 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C135 2401-001968 E.CAPACITOR 470NF 20% 50V

C201 2203-000681 CHIP CAPACITOR 27PF 50V 1608

C202 2203-000681 CHIP CAPACITOR 27PF 50V 1608

C203 2203-001222 CHIP CAPACITOR 820PF 50V 1608

C204 2203-000178 CHIP CAPACITOR 100NF 25V 1608

C205 2203-000178 CHIP CAPACITOR 100NF 25V 1608

C207 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C208 2203-000851 CHIP CAPACITOR 0.039NF 50V 1608

C209 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C211 2203-000178 CHIP CAPACITOR 100NF 25V 1608

C212 2401-000240 E.CAPACITOR 100UF 20% 10V

C213 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C214 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C215 2401-000240 E.CAPACITOR 100UF 20% 10V

C216 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C217 2401-000240 E.CAPACITOR 100UF 20% 10V

C218 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C301 2401-001102 E.CAPACITOR 330UF 20% 16V

C302 2401-000240 E.CAPACITOR 100UF 20% 10V

C303 2401-000240 E.CAPACITOR 100UF 20% 10V

C304 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C305 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C401 2203-000257 CHIP CAPACITOR 10NF 50V 1608

C402 2203-000257 CHIP CAPACITOR 10NF 50V 1608

Parts number Parts name Ar

Block No. 05

Remarks

Item

A

C403 2203-000178 CHIP CAPACITOR 100NF 25V 1608

C501L 2401-001954 E.CAPACITOR 4.7UF 20% 50V

C501R 2401-001954 E.CAPACITOR 4.7UF 20% 50V

C502L 2203-000440 CHIP CAPACITOR 1NF 50V 1608

C502R 2203-000440 CHIP CAPACITOR 1NF 50V 1608

C801 2401-000795 E.CAPACITOR 220UF 20% 16V

C804 2202-000243 C.CAPACITOR 33PF 5% 50V

C805 2202-000243 C.CAPACITOR 33PF 5% 50V

C806 2202-000243 C.CAPACITOR 33PF 5% 50V

D301 0402-000151 DIODE 1N5392 100V

IC101 1204-001799 IC KB9226 LQFP 48P

IC201 0904-001524 IC 5L9290 QFP 48P

IC301 1003-000179 IC KA9258D SOP 28P

IC401 1003-001162 IC KA3082 10PIN

IC402 1003-001162 IC KA3082 10PIN

IC801 AC14-12001G IC KA78L05Z

J1 2007-000070 CHIP RESISTOR 0 1/16W 1608

J10 2007-000070 CHIP RESISTOR 0 1/16W 1608

J12 2007-000029 CHIP RESISTOR 0 1/10W 2012

J13 2007-000070 CHIP RESISTOR 0 1/16W 1608

J2 2007-000070 CHIP RESISTOR 0 1/16W 1608

J3 2007-000070 CHIP RESISTOR 0 1/16W 1608

J4 2007-000029 CHIP RESISTOR 0 1/10W 2012

J5 2007-000070 CHIP RESISTOR 0 1/16W 1608

J7 2007-000029 CHIP RESISTOR 0 1/10W 2012

J8 2007-000029 CHIP RESISTOR 0 1/10W 2012

J9 2007-000029 CHIP RESISTOR 0 1/10W 2012

MJ1 2007-000070 CHIP RESISTOR 0 1/16W 1608

MR1 2007-000090 CHIP RESISTOR 10K 1/16W 1608

MR2 2007-000090 CHIP RESISTOR 10K 1/16W 1608

MR3 2007-000090 CHIP RESISTOR 10K 1/16W 1608

R101 2007-000098 CHIP RESISTOR 56K 1/16W 1608

R102 2007-000098 CHIP RESISTOR 56K 1/16W 1608

R103 2007-000098 CHIP RESISTOR 56K 1/16W 1608

R104 2007-000098 CHIP RESISTOR 56K 1/16W 1608

R105 2007-000100 CHIP RESISTOR 68K 1/16W 1608

R106 2007-000100 CHIP RESISTOR 68K 1/16W 1608

R107 2007-000115 CHIP RESISTOR 82 1/16W 1608

R108 2007-000308 CHIP RESISTOR 10 1/10W 2012

R110 2007-000455 CHIP RESISTOR 18K 1/16W 1608

R112 2007-001196 CHIP RESISTOR 820K 1/16W 1608

R113 2007-000132 CHIP RESISTOR 180K 1/16W 1608

R114 2007-000100 CHIP RESISTOR 68K 1/16W 1608

R115 2007-001179 CHIP RESISTOR 8.2K 1/16W 1608

R116 2007-000093 CHIP RESISTOR 20K 1/16W 1608

R117 2001-000331 CARBON RESISTOR 12K 5% 1/8W

R118 2007-000109 CHIP RESISTOR 1M 1/16W 1608

R119 2007-000101 CHIP RESISTOR 82K 1/16W 1608

R120 2007-000098 CHIP RESISTOR 56K 1/16W 1608

R121 2007-000092 CHIP RESISTOR 15K 1/16W 1608

R123 2007-000097 CHIP RESISTOR 47K 1/16W 1608

R124 2007-000103 CHIP RESISTOR 120K 1/16W 1608

R125 2007-000103 CHIP RESISTOR 120K 1/16W 1608

R126 2007-000098 CHIP RESISTOR 56K 1/16W 1608

R127 2007-000100 CHIP RESISTOR 68K 1/16W 1608

R128 2007-000129 CHIP RESISTOR 27K 1/16W 1608

R132 2007-000090 CHIP RESISTOR 10K 1/16W 1608

R133 2007-000090 CHIP RESISTOR 10K 1/16W 1608

R201 2007-000074 CHIP RESISTOR 100 1/16W 1608

R202 2007-000109 CHIP RESISTOR 1M 1/16W 1608

Parts number Parts name Ar

101 0501-000314 TRANSISTOR KSA812

301 0501-000610 TRANSISTOR KSA928A

302 0501-000010 TRANSISTOR KSC1008-YTA

Remarks

3-15

MX-K50R

ea

Electrical parts list (CD board)

Item

A

R204 2007-000078 CHIP RESISTOR 1K 1/16W 1608

R205 2007-000078 CHIP RESISTOR 1K 1/16W 1608

R206 2007-000078 CHIP RESISTOR 1K 1/16W 1608

R207 2007-000078 CHIP RESISTOR 1K 1/16W 1608

R208 2007-000078 CHIP RESISTOR 1K 1/16W 1608

R209 2007-000078 CHIP RESISTOR 1K 1/16W 1608

R210 2007-000075 CHIP RESISTOR 220 1/16W 1608

R301 2008-000140 FUS RESISTOR 2.2 5% 1/2W

R302 2001-001006 RESISTOR 82 5% 1/8W

R501L 2007-000102 CHIP RESISTOR 100K 1/16W

R501R 2007-000102 CHIP RESISTOR 100K 1/16W

R502L 2007-000074 CH IP RESISTOR 100 1/16W 1608

R502R 2007-000074 CHIP RESISTOR 100 1/16W 1608

R803 2001-000429 CARBON RESISTOR 1K 5% 1/8W

R804 2007-000078 CHIP RESISTOR 1K 1/16W 1608

R805 2007-000078 CHIP RESISTOR 1K 1/16W 1608

R806 2007-000078 CHIP RESISTOR 1K 1/16W 1608

R807 2007-000084 CHIP RESISTOR 4.7K 1/16W 1608

R808 2007-000084 CHIP RESISTOR 4.7K 1/16W 1608

R809 2007-000084 CHIP RESISTOR 4.7K 1/16W 1608

R810 2001-000515 CARBON RESISTOR 220 5% 1/8W

R811 2007-000078 CHIP RESISTOR 1K 1/16W 1608

R813 2007-000097 CHIP RESISTOR 47K 1/16W 1608

X201 2802-000211 RESONATOR 16.93MHZ 0.5%

ZD301 0403-000344 ZENER DIODE UZ3.9B 3.9V

ZD401 0403-000361 ZENER DIODE UZ6.2BSB 6.2V

ZD402 0403-000352 ZENER DIODE UZ4.7BM 4.7V

Parts number Parts name Ar

Block No. 05

Remarks

3-16

Packing materials and accessories parts list

EV version

P5 A1~A6

P3

P7

P4

P2

C

V

J

Block No.

Block No.

M

M

MX-K50R

3

M

M

5

M

M

P1

P8

A8

A9

P6

3-17

MX-K50R

Packing materials and accessories parts list

B,E,EN version

P5 A1~A7

P3

P7

P4

P2

C

V

J

Block No.

Block No.

M

M

3

M

M

5

M

M

P1

P8

A8

A9

P9

P6

3-18

MX-K50R

Parts list (Packing)

Item

A

P 1 AH69-00603A

P 2 AH69-00592A

P 3 AH69-00593A

P 4 AH69-30012T

P 5 AH69-00525A

P 6 AH81-00631Y

P 7 AH81-00631V

P 8 AH81-00631U

P 9 AH69-00631Z

Parts number Parts name Area

AH69-00604D

AH81-00631X

Parts list (Accessories)

Item

A

A 1 AH68-01065D

A 2 AH59-01045C

A 3 AH38-10001A

A 4 AH42-20001P

A 5 ---------------

A 6 AH68-00415D

A 7 AH68-00415C

A 8 MX-K50R-SPBOX-L

A 9 MX-K50R-SPBOX-R

Parts number Parts name Area

AH68-01065E

AH68-01065F

AH68-01065F

AH68-01065G

AH68-00415F

Q'ty

PACKING CASE

PACKING CASE

CUSHION L

CUSHION R

POLY BAG

POLY BAG

CUSHION BOTTOM

CUSHION TOP

CUSHION TOP

PE-BAG

PACKING CASE

Q'ty

INSTRUCTIONS

INSTRUCTIONS

INSTRUCTIONS

INSTRUCTIONS

INSTRUCTIONS

REMOCON ASSY

FM ANTENNA

AM ANTENNA 1

BATTERY

WARANTY CARD

WARANTY CARD

IMPORTANT CARD

SPK.WITH BOX

SPK.WITH BOX 1

Description

1

1

1

SET

1

SET

1

SET

1

INSTRUCTIONS

1

SPEAKER

1

SPEAKER

1

SPEAKER

2

SPEAKER

1

SPEAKER

Description

1

ENG

1

GER,FRE,DUT

1

GER,FRE,SPA,ITA

1

SWE,FIN,DAN

1

RUS,POL,HUN,CZE

1

MX-K50R

1

2

1

1

1

1

Block No. M3MM

B,E,EN

EV

EV

B,E,EN

B,E,EN

Block No. M5MM

B

E

EN

EN

EV

B,E,EN

EV

B

3-19

MX-K50R

VICTOR COMPANY OF JAPAN, LIMITED

AUDIO & COMMUNICATION BUSINESS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.21122)

200208