JVC MX-K10R, MX-K15R, MX-K30R Service Manual
MX-K10R/K30R/K15R
SERVICE MANUAL
COMPACT COMPONENT SYSTEM
REPEAT
BASS EX.
CD1CD2CD
SOUND
MODE
ACTIVE
MX-K
STANDBY/ON
SLEEP
AUX
FM MODE
FM /AM
CD1CD2CD
3
CD
PROGRAM
REPEAT
/RANDOM
TAPE
A/B
TAPE
DISPLAY
SELECT
PTY/EON MODE
SOUND
MODE
FADE
ACTIVE
MUTING
BASS EX.
LUME
VO
10R/K30R/K15R
MX-K30R
..................
E
.................
EN
..................
B
.................
3-CD
PLAY & EXCHANGE
COMPACT COMPONENT SYSTEM
MX-K30R
1 BIT
DUAL D/A
CONVERTER
PROGRAM
PANDOM
ST
ANDBY/ON
ECO
STANDBY
SET
CANCEL
/ DEMO
PRESET
CD
TAPE
FM
AUX
/ AM
PHONES
TUNING
REC START
/ STOPCD REC START DUBBING
CLOCK
TAPE
SELECT
PTY / EON
DISPLAY MODE
/TIMER
A / B
EJECT EJECT
CD SYNCHRO RECORDING
FULL - LOGIC CONTROL
PLAY
A
CD-R/RW PLAYBACK
SOUND
P
K
O
C
MODE
REPEAT
P
O
R
C
L
A
C
I
S
S
E
M
U
L
O
V
P
I
K
S
C
S
I
D
3
D
C
ACTIVE
2
D
C
BASS EX.
1
D
C
REC / PLAY
B
EV
MX-K10R
..................
E
.................
EN
.................
EV
MX-K15R
.................
EV
Area Suffix
Continetal Europe
Northern Europe
U.K.
E. Europe/Russia
Continetal Europe
Northern Europe
E. Europe/Russia
E. Europe/Russia
SP-MXK30 CA-MXK30R SP-MXK30
BASS-REFLEX BASS-REFLEX
STANDBY/ON
SLEEP
AUX
FM MODE
FM /AM
3
CD
PROGRAM
/RANDOM
TAPE
A/B
TAPE
DISPLAY
SELECT
PTY/EON MODE
FADE
MUTING
OLUME
V
3-CD
PLAY & EXCHANGE
COMPACT COMPONENT SYSTEM
MX-K10R
1 BIT
DUAL D/A
CONVERTER
PROGRAM
PANDOM
ST
ANDBY/ON
ECO
STANDBY
SET
CANCEL
/ DEMO
PRESET
CD
TAPE
FM
AUX
/ AM
PHONES
TUNING
REC START
/ STOPCD REC START DUBBING
CLOCK
TAPE
SELECT
PTY / EON
DISPLAY MODE
/TIMER
A / B
EJECT EJECT
CD SYNCHRO RECORDING
FULL - LOGIC CONTROL
PLAY
A
CD-R/RW PLAYBACK
SOUND
P
K
O
C
MODE
REPEAT
P
O
R
C
L
A
C
I
S
S
E
M
U
L
O
V
IP
K
S
C
S
I
D
3
D
C
ACTIVE
2
D
C
BASS EX.
1
D
C
REC / PLAY
B
CD1CD2CD
REPEAT
SELECT
SOUND
MODE
ACTIVE
BASS EX.
STANDBY/ON
SLEEP
AUX
FM MODE
FM /AM
3
CD
PROGRAM
/RANDOM
TAPE
A/B
TAPE
DISPLAY
PTY/EON MODE
FADE
MUTING
LUME
VO
BASS-REFLEX BASS-REFLEX
3-CD
PLAY & EXCHANGE
COMPACT COMPONENT SYSTEM
MX-K15R
1 BIT
DUAL D/A
CONVERTER
PROGRAM
PANDOM
ST
ANDBY/ON
ECO
STANDBY
SET
CANCEL
/ DEMO
PRESET
CD
TAPE
FM
AUX
/ AM
PHONES
TUNING
REC START
/ STOPCD REC START DUBBING
CLOCK
TAPE
SELECT
PTY / EON
DISPLAY MODE
/TIMER
A / B
EJECT EJECT
CD SYNCHRO RECORDING
FULL - LOGIC CONTR OL
PLAY
A
CD-R/RW PLAYBACK
SOUND
P
K
O
C
MODE
REPEAT
P
O
R
C
L
A
C
I
S
S
E
M
U
L
O
V
IP
K
S
C
S
I
D
3
CD
ACTIVE
2
D
C
BASS EX.
1
D
C
REC / PLAY
B
SP-MXK10 CA-MXK10R SP-MXK10 SP-MXK15 CA-MXK15R SP-MXK15
Contents
Safety precautions
Important for laser products
Preventing static electricity
Disassembly method
Adjustment method
COPYRIGHT
1- 2
1- 3
1- 4
1- 5
1-19
2002VICTOR COMPANY OF JAPAN, LTD.
©
Flow of functional
operation until TOC read
Maintenance of laser pickup
Replacement of laser pickup
Description of major ICs
1-21
1-22
1-22
1-23
No.21138
Dec.2002
Safety Precautions
1. This design of this product contains special hardware and many circuits and components specially or
safety purposes. For continued protection, no changes should be ma de 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 de sign or circuitry of the product should not be made. Any design alterations of the
product should not be made. Any design alterations or a ddition s will void the ma nufacturer`s warranty
and will further relieve the ma nufa cture of responsibility f or personal injury or property da mage re sulting
therefrom.
3. Many electrical and mechanical parts in the products have special safety-related characteristics.
These characteristics are often not evident from visual in spe ction nor can the protection afforded by
them necessarily be obtained by using replacement components rated for higher voltage, wattage,
etc. Replacement parts which have the se 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 a nd dre ssed with ties, clamps, tubings, barriers and the like to be
separated from live parts, high temperature parts, moving parts a nd/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 termin als, knobs, metal cabinet, screw heads, he adphone 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.
l 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.)
l 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
AC-type capacitor between an exposed metal part
and a known good earth ground. Measure the AC
voltage acros s the resi stor with the AC voltmeter.
Move the resistor connection to each exposed
metal part, pa rticularly 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 andrepeat 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.).
!
F
Warning
1. This equipment ha s been designed a nd manufa ctured to meet international safety standards.
2. It is the legal responsibility of the repairer to ensure that these safety standards are maintained.
3. Repairs must be made in a ccordance with the releva nt safety standards.
4. It is essential that safety critical components are repla ced by a pproved parts.
5. If mains voltage selector is provided, check setting for local voltage.
In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the
parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the “ ” mark
nearby are critical for safety.
When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer.
(Except the J and C version)
! CAUTION
Burrs formed during molding may be
left over on some parts of the
chassis. Therefore, pay attention to
such burrs in the case of preforming
repair of this system.
1-2
!
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 :
Laser Unit. Do not disassemble the Laser Unit. Replace
the complete Laser Unit if it malfunctions.
4.CAUTION :
laser radiation and is equipped with safety switches
which prevent emission of radiation when the drawer
is open and the safety interlocks have failed or are
defeated. It is dangerous to defeat the safety
switches.
VARNING : Osynlig laserstrålning är denna del är
VARO : Avattaessa ja suojalukitus ohitettaessa olet
There are no serviceable parts inside the
The compact disc player uses invisible
öppnad och spårren är urkopplad. Betrakta
ej strålen.
alttiina näkymättömälle lasersäteilylle. Äl ä
katso säteeseen.
5.CAUTION : If safety switches malfunction, the laser
is able to function.
6.CAUTION :
mance of procedures other than those specified
herein may result in hazardous radiation exposure.
!
CAUTION Please use enough caution not
Use of controls, adjustments or perfor-
to see the bea m directly or touch
it in case of an adjustment or
operation check.
ADVARSEL : Usynlig laserstråling ved åbning, nå r
sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.
ADVARSEL : Usynlig laserstrå ling ved åpning, når
sikkerhetsbryteren er avslott. Unngå
utsettelse for stråling.
REPRODUCTION AND POSITION OF LABELS
WARNING LABEL
1-3
Preventing static electricity
1. Grounding to prevent da mage 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 e arth processing for the de struction 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.
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 CD cha nger unit (optical pickup)
1. Do not subject the CD changer 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 CD changer
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 traverse unit is decomposed
* Please refer to "Disassembly method" in the text for pick
up and how to detach the CD changer mechanism.
1. Remove the CD changer unit.
2. Disconnect the harness from connector on the CD motor
board.
3. Solder is put up before the card wire is removed from connector
Cn601on the main board a s shown in Fig.1 a nd Fig. 2.
(When the wire is removed without putting up solder, the CD
pick-up assembly might destroy.)
4. Please remove solder after connecting the card wire with
CN601 when you install picking up in the substrate.
1-4
Disassembly method
Commence disassembly of this set by removing the main units and then proceed to the components and
assemblies inside the units.
Replacement of the fuses and the power IC
n Top cover
n CD changer unit
n Front panel assembly
n Chassis unit
n CD changer unit
n Removing the main PCB
n Removing the CD changer mechanism assembly
n Removing the CD pickup
n Replacing the loading motor and belt of the CD changer tray
n Replacing the CD tray rotor belt of CD changer, and removing the motor
n Front panel assembly
n Removing the cassette deck mechanism
n Removing the earphone jack PCB
n Removing the control/FL PCB
n Removing the switch PCB and ACTIVE BASS EX. switch PCB
n Removing the cassette deck main motor, and replacing the main belts
n Removing the leaf switches of the cassette deck me chanism
n Removing the cassette deck heads
n Chassis unit
n Removing the 3-pin regulator
n Removing the power amp and supply PCB and the Power Trans PCB
n Removing the sub power PCB
1-5
<Disasse mbly of the main blocks of this set>
Repla c ement of the fuses and the power IC
n Re pla cing the fuse s (See Fig.1, Fig.4)
n
Prior to performing the following procedure, remove
the left side BOARD a nd remove tuner PCB (Fig.4,BB)
1. Replace the fuses in side.
[Caution] Be sure to use fuses with the specified ratings.
For CA-MXK10R/15R Fig.1(A)
BOTTOM SIDE
CN981
CAUTION
(don’t remove
the safety sheet
cover )
For CA-MXK10R/15R Fig.1(A)
Component SIDE
Fuse(F981)
T1AL 250V
Fuse(F952)
T1.6AL 250V
FW981
Fuse (F981)
T2AL 250V
CN981
For CA-MXK30R Fig.1(B)
BOTTOM SIDE
HOLE
Fuse Hole
For CA-MXK30R Fig.1(B)
Component SIDE
CAUTION
(don’t remove
the safety sheet
cover )
Fuse(F952)
FW951
Fuse (F952)
T1.6AL 250V
FW981
Fuse(F981)
T1AL 250V
CN981
n Repla cing the power IC (See Fig.2 to 3)
n
Prior to performing the following procedure, remove
the top cover.
1. Remove the two screws "A" from the heat sinkbetween
the power IC.
2. Remove the solder fixing the power IC.
For CA-MXK10R/15R Fig.2
W
A
Fuse(F952)
T1.6AL 250V
For CA-MXK30R Fig.3
Fuse (F981)
T2AL 250V
w
CN981
A
1-6
n Repla cing the he at sink cover
1. Remove the six screws "B" from the back pa nel.
2. Pull the heat sink cover outward.
For CA-MXK30R Fig.4
BB
B
n Re moving the top cover a nd two side s BOAR D
(See Fig.5 and 6)
1. Remove the six screws "C" that retain the top cover from the
rear of the body.
For CA-MXK15R Fig.5(B)
For CA-MXK10R/K30R Fig.6(A)
2. Remove the eight screws "C" and "D" that retain the top from
the two sides of the body.
3. Remove the top cover from the body by lifting it toward the
rear.
For CA-MXK10R/K30R Fig.5(A)
1-7
For CA-MXK15R Fig.6(B)
n Removing the CD changer unit
(See Fig.7 to 10)
n
Prior to performing the following procedures, remove
the top cover and both sides BOARD.
[Caution] Although the CD mechanism unit can be
removed without removing the CD tray
panel, it is still recommended to remove it
in order to prevent da mage.
a. From the front panel side of this set, push in the sec-
tions marked with arrows and pull out the CD tray
toward the front.
b. Remove the CD tray panel by pushing both of its ex-
tremities upward in the direction of the arrows.
c. Push the CD tray deep into the set.
1. Disconnect the card wires from the CD PCB CN703
and CN203.
2. From the rear of the set, remove the two screws "E"
and two serews "G" on the front panel left and right
side.
3. Handle the CD changer unit rear, ta ke out unit.
1-8
For CA-MXK10R/30R Fig.9(A)
For CA-MXK15R Fig.9(B)
1-9
n Removing the front panel assembly
(See Fig.11 and 12)
n
Prior to performing the following procedures, remove
the top cover and both sides board.
n
Also remove the CD cha nger unit.
1. Disconnect the parallel wire and card wire from the
connectors CN702,CN701,CN101on the power a mp
and supply PCB.
2. Remove the two screws "H" retaining the front panel
assembly onto the bottom of the body.
3. Remove the screw "I" retaining the cassette deck
mechanism and then remove then GND lug "b" that
comes from the power a mp and supply PCB.
4. Disengage the claws "c" on both side s at the bottom
of the front panel assembly and then remove the
assembly.
1-10
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