JVC KDLX-10-R, KDLX-30-R Schematic

KD-LX30R/KD-LX10R

KD-LX30R/KD-LX10R

SERVICE MANUAL

CD RECEIVER

KD-LX30R
KD-LX10R

KD-LX30R
KD-LX10R

MODE
BAND

KD-LX30R

ATT

DISP

SOURCE

S
S
M

INTLOCALMONOSCM

TP

PTY

RDS

Line IN Sub Woofer

RPT RND

10789 11 12

Area Suffix

E ---- Continental Europe

OFFSEL

Remote
controller

VICTOR COMPANY OF JAPAN, LIMITED

MOBILE ELECTRONICS DIVISION,10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan

(No.49551)

Printed in Japan
200003(O)

Contents

Safety precaution 1-2
Preventing static electricity 1-3
Instructions 1-4~22
Disassembly method 2-1
Adjustment method 2-13
Maintenance of laser pickup 2-14
Replacement of lase pickup 2-14
Extention cord connecting method 2-15

This service manual is made from 100% recycled paper.

COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.

Functions of the mechanism under
the servise mode 2-18
Flow of functional until TOC read 2-20
Description of major ICs 2-22
Block diagrams 2-41
Standard schematic diagrams 2-43
Printed circuit board 2-47,48
Parts list 3-1~17

No.49551

Mar. 2000

Functions of the mechanism under the service mode

With the three error modes stored in maximum in the internal memory of the mechanism in the body of this
system, it is posible under the service mode to call the contents of error according to the following steps when
any error has occurred.

Press the three buttons (UP button )+( button)+(Func button ). Then it is possible to select the follwing
service modes. After changing over to the service mode, press the UP button and DOWN button to
change the mode. For executing the respective service modes, press the SEL button.
With the service mode 2 , it is possible to call the error codes of the mechanism.

NORMAL MODE

(UP button ) + ( button) + ( button) at the same time.

DELEEPROM

CD-CH ERR

DEL CH-ERR

RUNNING

DELDATA

CD-ERR

Data stored in EEPROM

1. RDS data

2. CD mechanism error cord

3. Station name (to be input by user)

4. DISC name (to be input by user)

5. AUX input name (application only to KD-LX30)
*Any data 3 to 5 above should not be deleted.

: Deletion of entire EEPROM data. This mode is used when
shipping this system from factry.

: This mode is used only when the CD changer is connected.

: This mode is used only when the CD changer is connected.

: Running mode (Do not use this mode under the servise mode)

: (Deletion of CD error code and RDS data)

: Calling of CD mechanism error code

SEL MODE

2

1

34

SOURCE

DISP RDS

PTY OFF/

5

6

1. Display of mechanism error

Error codesDescriptionOccurrence condition

Disc loading error

Eject error

Error during standby for loading

2. Display of CD error

Pickup feeding error

1. Inner peripheral feeding error
(10sec.)

2. Outer peripheral feeding error
(10sec.)
Focus search error
In the case of focusing error after
3-way focus searching

Tracking balance adjusting error
In the case of time-over (1sec.)
of timer
TOC area searching error
In the case of time-over (10sec.)
of timer
Reading error
IN the case of time-over (30sec.)
of timer
1st tracking access error
In the case of time-over (10sec.)
of timer
Last tracking access error
In the case of time-over (10sec.)
of timer
Q code reading error
In the case of time-over (0.6sec.)
of timer
TEXT data reading error

1. SW4 is not turned off.

2. SW3 is not turned on.

1. SW# is not turned off.

1. In case SW2 has been positioned to "L" before
starting loading during waiting for 15sec.

The pickup cannot returned to the inner
peripheral, and the REST switch is not turned off.
The pickup cannot be returned to the outer
peripheral, and the REST switch is not turned off.
In case the focus cannot be searched by one set
of focus searching (3-way focus searching) after
disc change and focus shock, judge that the focus
searching system is in error.
In case tracking balance cannot be adjusted even
after elapse of 1sec. following execution of the
adjusting command (TBA).

In case TOC area searching is not ended even after
elapse of 10sec.
In case reading is not ended even after elapse of 30
sec. during TOC reading action.

In case the first tracking access is not ended even
after elapse of 10sec. following completion of TOC
reading.
In case the last tracking access is not ended even
after elapse of 10sec. following completion of first
tracking under the RUNNING mode.
In case the Q code cannot be read for 0.6sec.
during playing TOC program area.

In case all TEXT data cannot be read.

09 0011
09 0013

01 0021

80 0031

Error codesDescriptionOccurrence condition

04 0051
04 0052

81 0053

82 0054

82 0055
84 0059

80 0060

80 0061

80 0062

80 0063

Flow of functional operation until TOC read

Power ON

• When the pickup correctly moves
to the inner area of the disc

Set Function to CD

• When the laser diode correctly
emits

Microprocessor

commands

FMO
MN662748RPM "32"

FEED MOTOR
+TERMINAL

TERMINAL

IC661"26"
REST SW

• When correctly focused

AN8806SB-W
27

Focus Servo Loop ON

Disc inserted

Pickup feed to the inner area

Laser emitted

Focus search

Disc rotates

RF signal eye-pattern
remains closed

Tracking loop closed

RF signal eye-pattern
opens

TOC readout

YES

YES

Microprocessor

commands

MN662748RPM 57

CN602 2

"No disc"

display

• When the disc correctly rotates

Microprocessor
commands

BCM
MN662748RPM
24

Spindle
motor (-)
IC661 "2"

AccelerationAcceleration

0.5 Sec

Rough

Servo

0.5 Sec

Servo CLV

Jump to the first track

Play

Tracking Servo Loop ON

• RF signal

Rough Servo Mode

CLV Servo Mode
(ProgramArea)

CLV Servo Mode
(Lead-In Area;
Digital: 0)

Feed Section

Is the voltage output at

IC631 pin "26" 2.5V or

YES

Is 4V present at both

sides of the feed motor?

YES

NO

Is the wiring for IC941

(10) ~ (15) correct?

NO

Is 6V or 2V present at

IC601 "26" and "27"?

NO

YES

YES

Is 5V present at IC601

pin "5"?

YES

Check the vicinity of

IC941.

Check the feed motor

connection wiring.

NONO

Check CD 9V

and 5V.

Check the feed motor.

Focus Section

When the lens is

moving:

Does the S-search

waveform appear at

IC601 pins "17" and "18"?

Spindle Section

Is the disk rotated?

YES

Does the RF signal

appear at TP1?

YES

4V

Check IC661.

NO

YES

NO

NO

Check the circuits in

the vicinity of IC661

pins "17" ~ "20".

Check the pickup and

its connections.

Is 3.5V present at IC661

pins "1" and "2" ?

Check the spindle motor

and its wiring.

YES

YES

NO NO

Is 4V present at IC631

pin "25" ?

YES

Check the vicinity of

IC661.

Check IC601 and

IC631.

Is the RF waveform at TP1

distorted?

YES

Proceed to the Tracking

section

Tracking Section

When the disc is rotated

at first:

Is the tracking error signal

output at IC631 "33"?

Check IC601.

NO

Approx. 1.2 V

YES

Check the circuits in the

vicinity of IC601 "10" ~

"18" or the pickup

Check the circuit in the

vicinity of IC601 pins

"20" ~ "40".

YESYES

Check the pickup and

its connections.

Block diagrams

KD-LX30

Front speaker

IC151

CD LPF

L-CH

R-CH

IC521

DSP & DAC

FOO,TRD
DMO,FMO

CDON
CASW1
CASW2
CASW3

BUS0
BUS1
BUS2
BUS3
BUCK
CCE
RST

DOOR TRAY

CN503 CN504

LMO

LMI

DMO

DMI

DMK

TM0

TM1

TMK

SEL,TEB,TE
SBAD,FE,RF
RFGC,RFAP

M M

DOOR

MOTOR

TRAY

MOTOR

RDS

J1

IC51
RDS

RDSDA
RDSSCK
AMAF

LCDRST

TUNER PACK

FM/AM

S.METER

SEEK/STOP

SD/ST
PLLCE
PLLDA
PLLCL

LCDDA

LCDCL
LCDCE1
LCDCE2

CD&TRAY/DOOR

RESET
INV
REMOCON
KEY1
KEY2

CN701

SW1~SW4,REST

IC501

RF AMP.

IC581

DRIVER

FEED ,SPINDLE
TRACKING ,FOCUS
LDON,LOADING

TU1

VA,VB,VC
MO,LD

FMDET.ADJ
SEPA.ADJ

KEY0
KEY1

CN702

IC31
MPX

ST

LOADING
REST
SPINDLE
FEED
SW1~SW4

CN501

A,B,C,LD
FOCUS
TRACKING

L-CH

R-CH

CD-L,CD-R

RESET

IC702

RESET

IC951

REGULATOR

IC701

CPU

M

M
M

PICKUP

OPTIMA720

FOCUS

COIL

IC911

E.VOLUME

LEVEL

VOL-DA

VOL-CLK

PON

ACC5V

14V

LOADING MOTOR

REST SWITCH
FEED MOTOR

SPINDLE MOTOR
SW1~SW4

TRACKING

COIL

W.VOL

W-LPF1
W-LPF2

LOUTF
LOUTR

LOUTF
LOUTR

SDA
SCL

SI/SO,SO,I/OBUSINT,BUSSCK
CRUISE

AU.L,AU.R

IC321

SUBWOOFER

IC322

SWITCHING

IC361

Lch

LINE AMP.

IC461

Rch

LINE AMP.

IC703

EPROM

LCDRST,LCDCE2,LCDCL,LCDDA

REMOCON

CN601CN631

to CN701to CN702

KEY0
KEY1

INFL
INRL

INFR
INRR

IC771

JVC BUS

IC323

SUBWOOFER

REMOCON

LCDRST,LCDCE1,LCDCL,LCDDA

KEY1,KEY2,INV

LED

POWER AMP.

CRUISE

LINE IN

SUBW

IC603

IC941

IC821

IC171

OUTFL ,OUTFR
OUTRL ,OUTRR

MEMORY

REGULATOR

FRONTL,FRONTR

REARL,REARR

IC602

LCD

DRIVER

CN901CN301

ACC

IC961

CH-L
CH-R

AU.LI,AU.RI

CA1~CA8,SA1~SA60

IC601

LCD

DRIVER

Rear speaker

Line out
FRONT

Line out
REAR

CN
771

Line IN

CN302

SUBWOOFER OUT

CB1~CB3

SB1~SB52

LCD1

KEY

SWITCH

KD-LX10

Front speaker

IC151

CD LPF

L-CH

R-CH

IC521

DSP & DAC

FOO,TRD
DMO,FMO

RDS

CDON
CASW1
CASW2
CASW3

BUS0
BUS1
BUS2
BUS3
BUCK
CCE
RST

DOOR TRAY

CN503 CN504

LMO

LMI

DMO

DMI

DMK

TM0

TM1

TMK

SEL,TEB,TE
SBAD,FE,RF
RFGC,RFAP

M M

DOOR

MOTOR

TRAY

MOTOR

J1

IC51
RDS

RDSDA
RDSSCK
AMAF

TUNER PACK

FM/AM

S.METER

SEEK/STOP

SD/ST

PLLCE
PLLDA
PLLCL

LCDDA

LCDCL
LCDCE1
LCDCE2

LCDRST

CD&TRAY/DOOR

RESET
INV
REMOCON
KEY1
KEY2

CN701 CN702

SW1~SW4,REST

IC501

RF AMP.

IC581

DRIVER

FEED ,SPINDLE
TRACKING ,FOCUS
LDON,LOADING

TU1

VA,VB,VC
MO,LD

FMDET.ADJ
SEPA.ADJ

KEY0
KEY1

CN501

IC31
MPX

ST

LOADING
REST
SPINDLE
FEED
SW1~SW4

A,B,C,LD
FOCUS
TRACKING

L-CH

R-CH

CD-L,CD-R

IC701

CPU

IC951

REGULATOR

OPTIMA720

FOCUS

COIL

E.VOLUME

LEVEL

VOL-DA

VOL-CLK

14V

LOADING MOTOR

M

REST SWITCH
FEED MOTOR

M
M

SPINDLE MOTOR
SW1~SW4

PICKUP

TRACKING

COIL

IC911

PON
ACC5V

LOUTF
LOUTR

LOUTF
LOUTR

SDA
SCL

SI/SO,SO,I/OBUSINT,BUSSCK
CRUISE

RESET

EPROM

IC702

RESET

to CN701to CN702

IC361

Lch

LINE AMP.

IC461

Rch

LINE AMP.

IC703

LCDRES,LCDCE2,LCDCL,LCDDF

REMOCON

CN601CN631

KEY0
KEY1

INFL

INRL

INFR
INRR

REAR L
REAR R

IC771

JVC BUS

REMOCON

LCDRST,LCDCE1,LCDCL,LCDDA

KEY1,KEY2,INV

LED

POWER AMP.

CRUISE

IC603

IC941

IC821

OUTFL ,OUTFR
OUTRL ,OUTRR

MEMORY

IC602

LCD

DRIVER

ACC

IC961

REGULATOR

CH-L
CH-R

CA1~CA3,SA1~SA52

IC601

LCD

DRIVER

CN
771

CB1~CB3

SB1~SB52

CN901CN301

Rear speaker

Line out

LCD1

KEY

SWITCH

Standard schematic diagrams

KD-LX30R Tuner & Main section

TUNER SIGNAL
CD SIGNAL
CD CHANGER SIGNAL

AUX SIGNAL
FRONT SIGNAL
RIGHT SIGNAL

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

KD-LX30R CD & LCD section

CD SIGNAL

KD-LX10R Tuner & Main section

TUNER SIGNAL
CD SIGNAL
CD CHANGER SIGNAL

FRONT SIGNAL
REAR SIGNAL

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

KD-LX10R CD & LCD section

CD SIGNAL

KD-LX30R/KD-LX10R

SERVICE MANUAL

CD RECEIVER

KD-LX30R
KD-LX10R

KD-LX30R
KD-LX10R

MODE
BAND

KD-LX30R

ATT

DISP

SOURCE

S
S
M

INTLOCALMONOSCM

TP

PTY

RDS

Line IN Sub Woofer

RPT RND

10789 11 12

Area Suffix

EX ---- Central Europe

OFFSEL

Remote
controller

This model is KD-LX30R/KD-LX10R EX that is added to the preceding model,
theKD-LX30R/KD-LX10R E . Therefore the service manual for this model is
consisting of Parts list only.
For others, please refer to the service manual of KD-LX10R/KD-LX30R E
(issue No.49551).

COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.

No.49587

Apr. 2001

KD-LX30R/KD-LX10R

Electrical parts list (Main board)

A

Item

Parts name

Parts number

E Version

P3-15

EX Version

IC701 IC UPD784215GC-167 UPD784215GC-204

Accessories parts list

A

Iten

A 2

Parts name

INST.BOOK
(LANGUAGE)

A 6

INST.BOOK LX10R
(LANGUAGE)
INST.BOOK LX30R
(LANGUAGE)

E Verdion

LVT0414-001A
(SWE,FIN)
LVT0411-001A
(SPA,ITA,SWE,FIN)
LVT0416-001A
(SPA,ITA,SWE,FIN)

P3-17

Parts number

EX Version

---------------------------

----------------------------

----------------------------

Block No.M4MM

Block No.01

Q'ty

1

1

1

VICTOR COMPANY OF JAPAN, LIMITED

MOBILE ELECTRONICS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,Japan

(No.49587)

200104