JVC KD-LX111 Service Manual

SERVICE MANUAL

CD RECEIVER

KD-LX111

Contents

Safety precaution Preventing static electricity Disassembly method Adjustment method

1-2 1-3 1-4 1-13

Area Suffix

J

Flow of functional operation unitl TOC read Maintenance of laser pickup Replacement of laser pickup Description of major ICs

Northern America

1-14 1-16 1-16 1-17~31

No.49696

Jun. 2002

KD-LX111

Safety precaution

!

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.

Please use enough caution not to see the beam directly or touch it in case of an adjustment or operation check.

1-2

KD-LX111

Preventing 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.

Grounding to prevent damage by static electricity

Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as mechanism unit. Be careful to use proper grounding in the area where repairs are being performed.

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. 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.

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

CD mechanism ass’y

Damper bracket

Front bracket

CD mechanism control board

Feed motor ass’y

FD gear

FD screw

Soldering

Pickup unit

1-3

KD-LX111

Disassembly method

Removing the top chassis

(See Fig.1 to 5)

1.

Remove the two screws A attaching the bottom cover to the top chassis on the bottom of the body.

2.

Remove the two screws B attaching the top chassis on both sides of the body.

3.

Remove the two screws C and the two screw D attaching the heat sink on the left side of the body.

4.

Remove the two screws E and the screw F on the back of the body.

5.

Remove the two screws G on the upper side of the body.

6.

Move the top chassis upward and disconnect the CD mechanism connector from the main board connector by pulling it. Remove the top chassis from the body.

Bottom cover

A

Fig.1

Top chassis

B

Fig.2

E

Fig.4

F

C

Heat sink

G

Top chassis

B

D

Fig.3

Top chassis

G

1-4

Fig.5

Removing the front panel assembly

(See Fig.6 to 8)

Prior to performing the following procedure, remove the top chassis assembly.

1.

Disconnect the flexible harness from connector CN701 on the main board assembly.

2.

Remove the four screws H attaching the front panel assembly on both sides of the body. Remove the front panel toward the front.

KD-LX111

CN701

Front panel assembly

Fig.6

Front panel assembly

H

Front panel assembly

H

Fig.7

CN701

Fig.8

Removing the Front Board (See Fig.9)

Prior to performing the following procedure, remove the top chassis assembly and the front panel assembly.

1.

Remove the four screws I attaching the front board on the back of the front panel assembly and release the eight joints a.

Joints a

I

Joints a

Fig.9

I

1-5

KD-LX111

Removing the lifter unit (See Fig.10)

Prior to performing the following procedure, remove the top chassis assembly and the front panel assembly.

1.

Disconnect the harness from connector CN503and CN504 on the main board.

2.

Remove the four screws J and detach the lifter unit from the bottom cover.

Removing the feed motor (L) (See Fig.11)

Prior to performing the following procedure, remove the lifter unit.

1.

Remove the washer attaching the clutch assembly and detach the clutch assembly from the shaft of the lifter unit.

2.

Remove the two screws K attaching the feed motor (L).

CN503

J

CN504

J

Lifter unit assembly

Fig.10

Lifter unit assembly

Removing the feed motor (R) (See Fig.12)

Prior to performing the following procedure, remove the lifter unit.

1.

Remove the washer attaching the clutch assembly and detach the clutch assembly from the shaft of the lifter unit.

2.

Remove the two screws L attaching the feed motor (R).

Clutch assembly

Washer

Clutch assembly

Feed motor (L) assembly

K

Fig.11

Lifter unit assembly

1-6

Washer

Feed motor (R) assembly

L

Fig.12

Removing the operation assembly

(See Fig.13 to 16)

Prior to performing the following procedure, remove the top chassis assembly, the front panel assembly and the lifer unit.

1.

Disconnect the card wire from connector CN702 on the main board and remove the operation assembly.

2.

Remove the three screws M attaching the right and left brackets which fix gears on both sides of the operation assembly.

3.

Remove the springs 5 and 6 from the operation assembly.

ATTENTION:

When reassembling, correctly engage the switch S651 and S652 on the main board and the right gear with the part b of the operation assembly.

Bracket (L)

M

Spring 5

Operation assembly

Fig.13

KD-LX111

Bracket (R)

M

Spring 6

CN702

Bracket (R)

Operation assembly b

S652

S651

Operation assembly b

Fig.14

Operation assembly

b

S652

S651

Fig.15Fig.16

1-7

KD-LX111

Removing the operation switch board

(See Fig.17 and 18)

Prior to performing the following procedure, remove the operation assembly.

1.

Remove the six screws N attaching the button panel on the operation assembly.

2.

Pull out the operation switch board from inside of the button panel.

NN

Button panel

Fig.17

Operation switch board

Button panel

Removing the CD mechanism assembly

(See Fig.19)

Prior to performing the following procedure, remove the top chassis.

1.

Remove the three screws O and the CD mechanism assembly from the top chassis.

O

Fig.18

O

CD mechanism assembly

1-8

Fig.19

Removing the main board assembly

(See Fig.20 to 22)

Prior to performing the following procedure, remove the top chassis.

KD-LX111

1.

Disconnect the flexible harness from connector CN701, the card wire from CN702 on the main board and the harness from CN503 and CN504 respectively.

2.

Remove the three screws P attaching the main board assembly to the bottom cover on the upper side of the body.

3.

Remove the screw Q attaching the rear panel and the bottom cover on the back of the body. Move the main board in the direction of the arrow and release the two joints c. (At this point, the main board can be removed with the rear panel and the rear heat sink.)

4.

Remove the three screws R attaching the rear heat sink on the back of the body.

5.

Remove the two screws S and the screw T attaching the rear panel. Now, the main board assembly will be removed.

ATTENTION:

When reassembling, correctly engage the switch S651 and S652 on the main board and the right gear with the part b of the operation assembly (Refer to Fig.21).

CN503

P

Joint c

CN702

CN504

CN701

P

Joint c

Front panel assembly

Fig.20

b

Main board

S

Rear panel

T

S652

Fig.21

S

Fig.22

Rear heat sink

QR

S651

R

1-9

KD-LX111

Removing the CD mechanism control board (See Fig.1 and 2)

Remove the screw A and the pickup cover attached

1. to the front bracket with the double-sided tapes.

Unsolder the three parts a, b and c on the CD

2. mechanism control board.

Remove the stator fixing the CD mechanism control

3. board and the damper bracket (To remove the stator smoothly, pick up the center part).

Remove the screw B attaching the CD mechanism

4. control board.

Remove the CD mechanism control board in the

5. direction of the arrow while releasing it from the two damper bracket slots d and the front bracket slot e.

Disconnect the flexible wire from connector on the

6. pickup unit.

Pickup cover

B

Double-sided tape

Damper bracket

A

E

b

Front bracket

Pickup unit

c

Fig.1

E

e

Flexible wire

a

E

d

CD mechanism control board

Shift the lock

ATTENTION:

Turn the FD gear in the direction of the arrow to move the entire pickup unit to the appropriate position where the flexible wire of the CD mechanism unit can be disconnected easily (Refer to Fig.2).

Removing the loading motor

(See Fig.3 to 5)

Prior to performing the following procedure, remove the CD mechanism control board and the pickup cover.

1.

Remove the two springs f attaching the CD mechanism assembly and the front bracket.

2.

Remove the two screws C and the front bracket while pulling the flame outward.

3.

Remove the belt and the screw D from the loading motor.

Spring f

C

FD gear

Loading motor

Fig.2

CD mechanism control board

Spring f

C

Front bracket

Fig.3

1-10

Pull outward

Flame

Front bracket

Fig.4

Pull outward

Loading motor

Fig.5

KD-LX111

D

Belt

Removing the CD mechanism assembly

(See Fig.1, 6 to 9)

Prior to performing the following procedure, remove the CD mechanism control board and the front bracket (loading motor).

1.

Remove the three screws E and the damper bracket.

2.

Raise the both sides fix arms and move the fix plates in the direction of the arrow to place the four shafts g as shown in Fig.8 and 9.

3.

Remove the CD mechanism assembly and the two springs h attaching the flame.

4.

Remove the two screws F and both sides rear damper brackets from the dampers. Detach the CD mechanism assembly from the left side to the right side.

ATTENTION:

The CD mechanism assembly can be removed if only the rear damper bracket on the left side is removed.

CD mechanism assembly

E

Flame

Spring h

E

Fix plate (L)

Damper bracket

E

Fig.6

E

Fig.7

Rear damper bracket

F

Spring h

Fix arm (L)

Shaft g

Fix arm (R)

Damper

Shaft g

Fig.8

Rear damper bracket

F

Shaft g

Fig.9

Damper

Fix plate(R)

Shaft g

1-11

KD-LX111

k

Removing the feed motor assmbly

(See Fig.10)

Prior to performing the following procedure, remove the CD mechanism control board, the front bracket (loading motor) and the CD mechanism assembly.

1.

Remove the two screws G and the feed motor assembly.

Removing the pickup unit

(See Fig.10 and 11)

Prior to performing the following procedure, remove the CD mechanism control board, the front bracket (loading motor), the CD mechanism assembly and the feed motor assembly.

1.

Detach the FD gear part of the pickup unit upward. Then remove the pickup unit while pulling out the part j of the FD screw.

Feed motor assembly

G

FD gear

Nut push spring plate

FD screw

Pickup unit

Fig.10

Part j

Part i

Pickup unit

H

Pickup mount nut

Pickup unit

ATTENTION:

2.

Remove the screw H attaching the nut push spring plate and the pickup mount nut from the pickup unit. Pull out the FD screw.

When reattaching the pickup unit, reattach the part i of the pickup unit, then the part j of the FD screw.

Removing the spindle motor

(See Fig.12 and 13)

Prior to performing the following procedure, remove the CD mechanism control board, the front bracket (loading motor), the CD mechanism assembly and the feed motor assembly.

1.

Turn up the CD mechanism assembly and remove the two springs k on both sides of the clamper arms. Open the clamper arm upward.

Spring k

FD screw

Spindle motor

Fig.11

Spring

Fig.12

I

2.

Turn the turn table and remove the two screws I and the spindle motor.

1-12

I

Fig.13

Adjustment method

Test instruments required for adjustment

1. Digital oscilloscope (100MHz)

2. AM Standard signal generator

3. FM Standard signal generator

4. Stereo modulator

5. Electric voltmeter

6. Digital tester

7. Tracking offset meter

8. Test Disc JVC :CTS-1000

9. Extension cable for check EXTGS004-26P

Standard measuring conditions Power supply voltage DC14.4V(10.5~16V) Load impedance 20Kohm(2 Speakers connection) Output Level Line out 2.0V (Vol.

1

MAX)

Standard volume position Balance and Bass &Treble volume : lndication"0" Loudness : OFF BBE :

Frequency Band FM 87.5MHz ~ 107.9MHz

87.5MHz ~ 108MHz MW 530kHz ~ 1710 kHz

531kHz ~ 1602 kHz

Dummy load Exclusive dummy load should be used for AM,and FM. For FM dummy load,there is a loss of 6dB between SSG output and antenna input.The loss of 6dB need not be considered since direct reading of figures are applied in this working standard.

KD-LX111

OFF

How to connect the extension cable for adjusting

EXTGS004-26P

EXTLX002-4P

EXTLX002-16PC

EXTLX001-2P

EXTLX001-16PF

EXTLX002-SWPWB

EXTLX001-6PC

EXTLX001-6PF

EXTLX001-2P

1-13

KD-LX111

Acceler

ation

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 TC9462 "53"

FEED MOTOR +TERMINAL

TERMINAL

IC581 "5"

REST SW

When correctly f

Focus Servo

ocused

Loop ON

Disc inser

Pickup feed to the inner area

Laser emitted

F

ocus search

Disc rotates

RF signal eye-pattern remains closed

Tracking loop closed

RF signal eye-pattern opens

TOC readout

ted

YES

Microprocessor

commands

"No disc"

y

displa

When the disc correctly rotates

Microprocessor commands

Spindle motor (-) IC581 "7"

Acceleration

Acceler

ation

0.5 Sec

Rough

Servo

0.5 Sec

Servo CLV

1-14

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

IC521 pin "53" 5V or 0V?

YES

Is 4V present at both

sides of the f

eed motor?

YES

NO

Is the wiring for IC521

(90) ~ (100) correct?

NO

Is 6V or 2V present at

IC581 "5" and "6"?

NO

YES

Is 5V present at IC581

pin "11"?

YES

Check the vicinity of

IC521.

Check the feed motor

connection wir

ing.

NONO

KD-LX111

Check CD 9V

and 5V.

Check the feed motor

Focus Section

When the lens is

mo

ving:

4V

Does the S-search

waveform appear at

IC581 pins "17" and "18"?

Spindle Section

Is the disk rotated?

YES

Does the RF signal

appear at

TP1?

YES

.

NO

YES

NO

Is 4V present at IC581

Check the spindle motor

NO

k IC581.

Chec

Check the circuits in the vicinity of IC581

pins "15" ~ "18".

YES

Check the pickup and

its connections.

pins "7" and "8" ?

YES

and its wir

ing.

NO NO

Is 4V present at IC521

pin "55" ?

YES

Check the vicinity of

IC581.

Check IC501 and

IC521.

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 IC501 "12"?

Check IC521.

NO

Approx. 1.2 V

YES

Check the circuits in the

vicinity of IC501 "19" ~

"24" or the pic

kup

Check the circuit in the

vicinity of IC501 pins

"2" ~ "12".

YESYES

Check the pickup and

its connections.

1-15

KD-LX111

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.

(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:ampli tude of eye pattern) will be low.

Is RF output

1.0 0.35Vp-p?

YES

O.K

(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.

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.

1-16

Play a disc.

Check the eye-pattern at TP1.

Finish.

Description of major ICs

FAN8037 (IC581) : CD driver

1. Pin layout & Block diagram

KD-LX111

2. Pin function

Symbol

No.

1

IN2+

2

IN2-

3

OUT2

4

IN3+

5

IN3-

6

OUT3

7

IN4+

8

IN4-

9

OUT4

10

CTL1

11

FWD1

12

REV1

13

CTL2

14

FWD2

15

REV2

16

SGND

17

FWD3

18

REV3

19

CTL3

20

SB

21

PS

22

MUTE

23

PVCC2

24

DO7-

48 47 46 45 44 43 42 41 40 39 38

1

2

3

4

5

6

7

8

9

10

11

12

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

I/O

Function

I

CH2 op-amp input(+)

I

CH2 op-amp input(-)

O

CH2 op-amp output

I

CH3 op-amp input(+)

I

Ch3 op-amp input(-)

O

CH3 op-amp output

I

CH4 op-amp input(+)

I

CH4 op-amp input(-)

O

CH4 op-amp output(+)

I

CH5 motor speed control

I

CH5 forward input

I

CH5 reverse input

I

CH6 motor speed control

I

CH6 forward input

I

CH6 reverse input

-

Signal ground

I

CH7 forward input

I

CH7 reverse input

I

CH7 motor speed control

I

Stand by

I

Power save

I

All mute

-

Power supply voltage

O

CH7 drive output(-)

M

s

S

w

C

M

s

S

w

C

M

s

S

w

C

T.S . D

D

STAND BY ALL MUTE

POWER SAVE

Pin No.

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

DO7+

DO6-

DO6+

PGND2

DO5-

DO5+

DO4-

DO4+

DO3-

DO3+

PGND1

DO2-

DO2+

DO1-

DO1+

PVCC1

REGOX

REGX RESX

VREF

SVCC

IN1+

IN1-

OUT1

37

36

35

34

33

32

31

30

29

28

27

26

25

Function

I/O

O

CH7 drive output(+)

O

CH6 drive output(-)

O

CH6 drive output(+)

-

Power ground2

O

CH5 drive output(-)

O

CH5 drive output(+)

O

CH4 drive output(-)

O

CH4 drive output(+)

O

CH3 drive output(-)

O

CH3 drive output(+)

-

Power ground1

O

CH2 drive output(-)

O

CH2 drive output(+)

O

CH1 drive output(-)

O

CH1 drive output(+)

-

Power supply voltage

I

Regulator feedback input

O

Regulator output

I

Regulator reset input

I

Bias voltage input

-

Signal supply voltage

I

CH1 op-amp input(+)

I

CH1 op-amp input(-)

O

CH1 op-amp output

1-17

KD-LX111

UPD784215AGC101 (IC701) : Main micon

1.Pin layout

100 ~ 76

1

75

~

25

26 ~ 50

2.Pin functions(1/3)

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

Symbol SW2 SW3 SW4 RST-SW LMO LM1 DIM-OUT ILLUM1 VDD X2 X1 VSS XT2 XT1 RESET SW1 BUS-INT PS2 CRUISE NC NC REMOCON AVDD AVREFO TEM1 KEY0 KEY1 KEY2 LEVEL NC SQ SM AVSS W-VOL DOT-CNT AVREF BUS-SI BUS-SO BUS-SCK STAGE2 LCD-DA LCD-SCK

~

51

I/O

Function

I

CD mechanical switch 2 detection signal input

I

CD mechanical switch 3 detection signal input

I

CD mechanical switch 4 detection signal input

I

Rest switch detection signal input

O

Motor signal control signal output at loading

O

Motor signal control signal output at leject

O

DIMMER pulse control output

O

POWER ON:H,FLAT PANEL:L

-

5V

-

GND

-

I

Reset detection teaminal

I

CD mechanical switch 1 detection signal input

I

J-BUS int

I

POWER SAVE2. Operating together with BACKUP.H input:STOP

I

Pulse signal for CRUISE input(only in 330R)

-

I

Remocon input

-

5V

-

5V

I

Temperature detection input

I

Key input 0

I

Key input 1

I

Key input 2

I

Level meter input

I

S.QUALITY level input

I

S.METER level input

-

GND

O

Subwoofer volume control analog output

O

Dot matrix contrast adjustment analog output

-

5V

I

J-BUS data input

O

J-BUS data output

I/O

J-BUS clock input and output

I

H:LX300 L:LX100

O

Data output to LCD driver

O

Clock output to LCD driver

1-18

2.Pin functions(2/3)

KD-LX111

Pin No.

43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94

Symbol

LCD-CE1

BUZZER

12C-DAI

12C-DAO

12C-CLK

BUS-I/O

TMO

TM1

DMO

DM1

ST

NC

MONO C-SW1 C-SW2 C-SW3 C-SW4 C-SW5

VOL1 VOL2

SEEK/STP

NC

FM/AM

PLL-CE

PLL-DO

PLL-CLK

PLL-DI

NC

AMP-KILL

VSS

DIM -IN

PS1

POWER

CD-ON

MUTE W-LPF1 W-LPF2

W-MUTE

VDD

VOL-DA

VOL-CLK

NC

GVSW

LCD RST

NC

DMK

TMK

NC

BUCK

CCE

RST

TEST

I/O

Function

O

Chip enable output 1 to LCD driver

O

Buzzer output

I

12C communication data input

O

12C communication data output

O

12C communication clock output

O

J-BUSI/O signal terminal

O

Tray motor negative signal output terminal

O

Tray motor positive signal output terminal

O

Motor control signal output in door down

O

Motor control signal output in door up

I

Stereo detector stereo signal input H:Brordcasting station L:Stereo O O

Monaural ON/OFF selection output MONO ON:H

I

Chameleon machanical switch 1 detection signal input

I

Chameleon machanical switch 2 detection signal input

I

Chameleon machanical switch 3 detection signal input

I

Chameleon machanical switch 4 detection signal input

I

Chameleon machanical switch 5 detection signal input

I

Rotary volume signal 1 input

I

Rotary volume signal 2 input O

Auto seek/stop selection output SEEK:H STOP:L O

-

FM/AM selection output FM:H AM:L O

IC control CE output O

IC control data output O

IC control clock output

I

IC control data input O

Telephone mute detection input O

POWER AMP ON/OFF selection output

-

GND

I

Dimmer detection input L:dimmer ON

I

Power save 1 Operating together with ACC.Power save :L Operating :H O

Power ON/OFF selection output Power ON:H O

CD power supply control signal output CD:H O

Mute output MUTEON:L O

Subwoofer cut off frequency control output 1 O

Subwoofer cut off frequency control output 2 O

Subwoofer mute output MUTE ON:H

-

5V O

data output terminal O

clock signal output terminal O O

CD-DA/CD-RW selection control output CD-RW:L O

Reset signal output to LCD driver

-

O

Door motor kick signal output O

Tray motor kick signal output

-

O

Data cmmunication clock output with CDLSI O

Data cmmunication clock CE with CDLSI O

CDLSI reset signal output

GND

1-19

KD-LX111

/

2.Pin functions(3/3)

Pin No.

95 96 97 98 99

100

Symbol

BUSO

BUS1 BUS2 BUS3

DISCSEL

NC

I/O

Function

I/O

Data communication input and output port 0 with CDLSI

I/O

Data communication input and output port 1 with CDLSI

I/O

Data communication input and output port 2 with CDLSI

I/O

Data communication input and output port 3 with CDLSI

I

H:not for 8cm DISC L:for 8cm DISC

O

TC9490FA (IC521) : DSP & DAC

1.Pin layout & Block daiagram

SS3

DV

SS3

RO

DD3

DVR

LO

VXDD3XOXI

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

49

50

51

52

53

LPF

XV

Clock

generator

1-bit DAC

TEIN

DD3VSS3

V

DMO

PWM

DD3

FMO

AV

Servo control

SEL

TEBC

RFGC

A/D

REF

V

D/A

TRO

FOO

32

31

30

29

28

TEZI

TEI

SBAD

FEI

RFRP

DV

SS3

ZDET

V

SS5

BUS0

BUS1

BUS2

BUS3

BUCK

/CCE

/RST

V

DD5

54

55

56

57

58

59

60

61

BCK

Micro-

controller

interface

LRCK

AOUT

62

63

64

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Correction

Audio output

circuit

DOUT

circuit

IPF

Address

circuit

16k

RAM

Digital output

SS3

DD3

V

SBOK

ROM

RAM

CLCK

Digital equalizer

adjustment circuit

CLV servo

Sync signal

protection

EFM

Sub code

detector

DATA

automatic

SFSY

SBSY

/HSO

VCO

PLL

TMAX

UHSO

Data slicer

DD3

PV

PDO

27

26

25

24

23

22

21

20

19

18

17

RFZI

RFCT

AV

DD3

RFI

SLCO

AV

SS3

VCOF

RV

REF

LPFO

LPFN

TMAX

1-20

KD-LX111

2.Pin function (1/2)

Pin No.

1 2

3 4

Symbol

BCK

LRCK

AOUT DOUT

5

6 7 8

9 10 11 12

13

14

VDD3

VSS3 SBOK CLCK

DATA

SFSY SBSY

/HSO

/UHSO

IPF

I/O

O O

O O O

-

O

I/O

O O O

O

TC9490FA(2/3)

Function Bit clock outputpin 32fs, 48fs, or 64fs selectable by command. L/R channel clock output pin."L" for L channe and "H" for R channel. Output polarity can be inverted by command. Audio data output pin. MSB-first or LSB-first selectable by command. Digital data output pin. Outputs up to double-speed playback. Correction flag output pin.When set to "H",AOUT output cannot be corrected by C2 correction processing. Digital 3.3V power supply voltage pin. Digital GND pin. Subcode Q data CRCC result output pin."H" level when result is OK. Subcode P-W data read clockI/O pin. I/O polarity selectable by command. Subcode P-W data output pin. Playback frame sync signal output pin. Subcode block sync signal output pin. "H" level at S1 when subcode sync is detected. Playback speed mode flag output pins.

/HSO

H H

L

--

H

L L

--

Playback speed/UHSO

Normal Double 4 times

---

15 16 17

18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35

PVDD3

PDO

TMAX

LPFN

LPFO

PVREF

VCOF

SS3

AV SLCO

RFI

AV

RFCT

RFZI

RFRP

FEI

SBAD

TEI TEZI FOO

TRO

REF

V

-

PLL-only 3.3V power supply voltage pin.

O

EFM and PLCK phase difference signal output pin.

O

TMAX detection result output pin.

TMAX OutputTMAX Detection result

Longer than fixed period

Within fixed period

Shorter than fixed period

I

Inverted input pin for PLL LPF amp.

O

Output oin for PLL LPF amp.

REF

-

PLL-only V VCO filter pin.

O

Analog GND pin.

DAC output pin for data slice level generation.

O

RF signal input pin.Zin selectable by command.

I

Analog 3.3V power supply voltage pin.

RFRP signal center level input pin.

I

RFRP signal zero-cross input pin.

I

RF ripple signal input pin.

I

Focus error signal input pin.

I

Sub-beam adder signal input pin.

I

Tracking error input pin. Inputs when tracking servo is on.

I

Tracking error signal zero-cross input pin.

I

Focus equalizer output pin.

O

Tracking equalizer output pin.

O

Analog reference power supply voltage pin.

-

pin.

"PV

"HIZ"

"AV

DD3

SS3"

"

1-21

KD-LX111

2.Pin function (2/2)

Pin No.

36 37 38

39 40 41 42 43 44 45

Symbol

RFGC

TEBC

SEL

AV

FMO

DMO

V

V TESIN XV

46 47 48 49

XV DV

50 51 52

DV

DVR 53 54 55 56 57 58 59 60 61 62

63 64

DV

ZDET

V BUS0 BUS1 BUS2 BUS3

BUCK

/CCE

/RST V

DD3

SS3

DD3

XI

XO

RO

LO

SS5

DD5

SS3

DD3

SS3

DD3

SS3

I/O

O O O

O O

-

I

-

I

O

-

O

-

O

-

I/O

I I

I

-

TC9490FA(3/3)

Function RF amplitude adjustment control signal output pin. Tracking balance control signal output pin. APC circuit ON/OFF signal output pin. At laser on,high impedance with UHS="L" ,H output with UHS="H". Analog 3.3V power supply voltage pin. Feed equalizer output pin. Disc equalizer output pin. Digital GND pin. Digital 3.3V power supply voltage pin. Test input pin. Normally,fixed to "L". System clock oscillator GND pin. System clock oscilatoe input pin. System clock oscillator output pin. System clock oscillator 3.3V power supply voltage pin. DA converter GND pin. R-channel data forward output pin. DA converter 3.3V power supply pin. Reference voltage pin. L-channel data forward output pin. DA converter GND pin. 1 bit DA converter zero data detection flag output pin. Microcontroller interface GND pin.

Microcontroller interface data I/O pins.

Microcontroller interface clock input pin. Microcontroller interface chip enable signal input pin.At "L". Bus0 to BUS3 are active. Reset signal input pin. At reset,"L". Microcontroller interface 5V power supply pin.

NJM2904M (IC951) : Ope amp

1.Pin layout

1A OUT

2A -IN

3A +IN

4

1-22

NJM2100M (IC821) : Operational amp

A OUT

8

7

6

5GND

+

V

B OUT

B -IN

B +IN

A IN–

A IN+

VEE

1

A

+–

2

B

+–

3

4

8

VCC

7

B OUT

6

B IN–

5

B IN+

BD3860K (IC911):E.Vol & Loud

1.Terminal layout

33 23

KD-LX111

2.Block diagram

GND FIL VCC SEL1

6 5 9 40 36 35 343328323130 2919 15 14

POWER

SUPPLY

A1

41

B1

42

C1

43

D1

44

INPUT

1

2

3

4

SELECTOR

A2

B2

C2

D2

34

44

1 11

INPUT

GAIN

0 18 dB

INPUT

GAIN

0 18 dB

22

12

VIN1 LOUD1 HF1 LF1 DET1 TIN1 TNF1 BNF1

MAIN

VOLUME

0 -40 dB

LOUDNESS

MAIN

VOLUME

0 -40 dB

LOUDNESS

LOW(f=50Hz) 6dB

PROCESS CONTROL +3 to 12dB

(f=10kHz)

LOGIC

LOW(f=50Hz) 6dB

PROCESS CONTROL +3 to 12dB

(f=10kHz)

TREBLE

-14 +14dB

TREBLE

-14 +14dB

BASS

BOUT1VCA1 MIX1 BBOUT1

FADER

CH1 FRONT

0 -5 dB

FADER

CH1 REAR

0 -5 dB

FADER

CH2 REAR

0 -5 dB

FADER

CH2 FRONT

0 -5 dB

13

12

37

10

11

7

8

OUTF1

OUTR1

SI

SC

OUTR2

OUTF2

3.Pin function

Symbol Function

No.

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22

A2 B2 C2 D2

FIL

GND

SI

SC

VCC

OUTR2

OUTF2

OUTR1

OUTF1

BOUT1

BNF1

BOUT2

BNF2 TNF2 TNF1

TIN2

BBOUT2

MIX2

CH2 Input Pin A CH2 Input Pin B CH2 Input Pin C CH2 Input Pin D 1/2 VCC Pin Ground Pin Serial Data Receiving Pin Serial Clock Receiving Pin Power Supply Pin CH2 Rear Output Pin CH2 Front Output Pin CH1 Rear Output Pin CH1 Front Output Pin CH1 Bass Filter Setting Pin CH1 Bass Filter Setting Pin CH2 Bass Filter Setting Pin CH2 Bass Filter Setting Pin CH2 Treble Filter Setting Pin CH1 Treble Filter Setting Pin CH2 Treble Input Pin CH2 BBE II Signal Output Pin CH2 Output MIX Amplifier Inverse Input Pin

39 38 37 25 24 26 23 22 21 20 18 17 16

Symbol Function

No.

23 24 25 26 27 28 29 30

BBOUT1 31 32 33 34 35 36 37 38 39 40 41 42 43 44

VCA2

LF2

HF2

DET2

DEF

DET1

TIN1

MIX1

VCA1

LF1

HF1

LOUD1

VIN1

LOUD2

VIN2 SEL2 SEL1

A1

B1 C1 D1

CH2 High Pass VCA Output Pin CH2 Low Pass Filter Setting Pin CH2 High Pass Filter Setting Pin CH2 High Pass Attack/Release Time Setting Pin BBE ON/OFF switching time constant pin CH1 High Pass Attack/Release Time Setting Pin CH1 treble Input Pin CH1 BBE II Signal Output Pin CH1 Output MIX Amplifier Inverse Input Pin CH1 High Pass VCA Output Pin CH1 Low Pass Filter Setting Pin CH1 High Pass Filter Setting Pin CH1 Loudness Filter Setting Pin CH1 Main Volume Input Pin CH2 Loudness Filter setting Pin CH2 Main Volume Input Pin CH2 Input Gain Output Pin CH1 Input Gain output Pin CH1 Input Pin A CH1 Input Pin B CH1 Input Pin C CH1 Input Pin D

BOUT2BNF2TNF2TIN2BBOUT2MIX2VCA2DET2LF2HF2LOUD2VIN2SEL2

1-23

KD-LX111

TA2147F-X (IC501) : RF amp.

1.Terminal layout

2.Block diagram

VRO

FEO

FEN

RFRP

RFRPIN

RFGO

RFGC

AGCIN

RFO

RFN

13GVSW

14

15

16

17

18

19

20

21

22

23

10pF

40k

30k

20k 20k

20k

3k

15k

50 A

12k

BOTTOM

PEAK

20k

180k

40pF

20k

PEAK

1.3V

180k

40k

240k 15pF

240k

15pF

60k

40k

40pF

60k

50k

2k

20 A

20k

60 A

50k

14k

k

1

80k

x0.5

80k

20k

15k

x2

1k

2k

1.75k

10pF

12 RFDC

11

TEO

10

TEN

TEBC

9

8

SEL

7

LDO

MDI

6

5

TNI

4

TPI

3

FPI

2

FNI

1-24

GND

24

3k

1

Vcc

3.Pin function

KD-LX111

Pin No.

1 2 3 4 5 6 7 8

9

10 11

12 13

Symbol

Vcc FNI FPI TPI TNI

MDI

LDO

SEL

TEBC

TEN TEO

RFDC

GVSW

I/O

O

Function

-

3.3V Power supply pin

I

Main-beam amp input pin

I

Main-beam amp input pin

I

Sub-beam amp input pin

I

Sub-beam input pin

I

Monitor photo diode amp input pin Laser diode amp output pin

I

APC circuit ON/OFF control signal,laser diode (LDO) control signal input or bottom/peak detection frequency change pin.

APC

circuit

GND OFF

HIZ

Vcc

I

Tracking error balance adjustment signal pin Adjusts TE signal balance by eliminating carrier component from PWM signal(3-state output, PWM carrier = 88.2kHz) output from TC9490F/FA TEBC pin using RC-LPF and inputting DC. TEBC input voltage:GND~Vcc

I

Tracking error signal generation amp negative-phase input pin Tracking error signal generation amp output pin. Combining TEO signal and RFRP signal with TC9490F/FA configures tracking search system. RF signal peak detection output pin

I

AGC/FE/TE amp gain change pin

Connected to Vcc through 1k resistor

Control signal output

ON

Control signal output

ON

LDOSEL

14 15 16 17

18 19 20

21 22 23 24

VRO FEO FEN

RFRP

RFRPIN

RFGO RFGC

AGCIN

RFO RFN GND

ModeGVSW

GND

HIZ Vcc

Reference voltage (VRO) output pin *VRO = 1/2 Vcc when Vcc = 3.3V

O

Focus error signal generation amp output pin

O

Focus error signal generation amp negative-phase input pin

I

Signal amp output pin for track count

O

Combining RFRP signal TEO signal with TC9490F/FA configures tracking search system.

Signal generation amp input pin for track count

I

RF signal amplitude adjustment amp output pin

O

RF amplitude adjustment control signal input pin

I

Adjusts RF signal amplitude by eliminating carrier component from PWM signal (3-state output, PWM carrier = 88.2kHz) output from TC9490F/FA RFGC pin using RC-LPF and inputting DC. *RFGC input voltage : GND-Vcc RF signal amplitude adjustment amp input pin

I

RF signal generation amp output pin

O

RF signal generation amp input pin

I

GND pin

-

CD-RW CD-DA CD-DA

1-25

KD-LX111

TA8273H(IC941):Power amp

1.Block diagram

Vcc 1/2 Vcc 3/4

6 20

2200 F 0.022 F

+

INRF

AC CONT1

INRR

ST BY

+5V ST ON

REF

47 F

INLF

AC CONT2

PRE GND

+

0.22 F

+

0.22 F

+

0.22 F

11

1

12

4

10

15

25

13

Stand by

Switch

Ripple

Filter

-

+

Protective

circuit

-

+

Mute

circuit

-

+

Protective

circuit

-

+

-

9

7

OUT RF+

OUT RF-

GND

8

+

OUTRR+

5

-

OUTRR-

3

GND

2

Mute

10K

22

+

3.3 F

OUTLF+

+

Low Level Mute ON

17

-

OUTLF-

19

GND

18

+

21

OUTLR+

1-26

INLR

ON TIME

22 F

+

0.22 F

+

14

16

Muting &

ON Time Control

Circuit

+

-

OUT LR-

23

GND

24

2.Terminal layout

KD-LX111

3.Pin function

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

SymbolPin No. Function

AC CONT 1 GND OUTRRSTBY OUTRR+ VCC1/2 OUTRFGND OUTRF+ REF INRF INRR PREGND INLR INLF ONTIME OUTLF+ GND OUTLFVCC3/4 OUTLR+ MUTE OUTLRGND AC CONT 2

Header of IC Power GND Outpur(-) for Rear Rch Stand by input Output (+) for Rear Rch Power input Output (-) for Front Rch Power GND Output (+) for Front Rch Ripple filter Front Rch input Rear Rch input Signal GND Rear Lch input Front Lch input Power on time control Output (+) for Front Lch Power GND Output (-) for Front Lch Power input Output (+) for Rear Lch Muting control input Output (-) for Rear Lch Power GND Header of IC

TA8273H

NJM4565MD (IC151/IC361/IC461) : Operational amp

+

A OUTPUT

-

A INPUT

+

A INPUT

V

1

2

3

-

4

8

V

B OUTPUT

7

B INPUT

-

6

5

+

B INPUT

1-27

KD-LX111

HA13164A (IC961) : Regulator

1.Terminal layout

123456789101112131415

2.Block diagram

ANT OUT

C3

0.1u

EXT OUT

C4

0.1u

ANT CTRL

CTRL

CD OUT

C5

0.1u

AUDIO OUT

C6

10u

11

12

10

BATT.DET OUT

9

COMPOUT

6

VDD OUT

4

SW5VOUT

5

14

UNIT R:

+B

ACC

ILMOUT

R1

C7

0.1u

C8

0.1u

C1

100u

VCC ACC

8

2

1

7

Surge Protector

BIAS TSD

15

3

TA B

note1) TAB (header of IC)

connected to GND

ILM AJGND GND

13

C2

0.1u

C:F

1-28

3.Pin function

Pin No. Symbol Function

1 2

EXTOUT ANTOUT

Output voltage is VCC-1 V when M or H level applied to CTRL pin. Output voltage is VCC-1 V when M or H level to CTRL pin and H level

to ANT-CTRL. 3 4 5 6 7 8 9

10 11 12 13 14 15

ACCIN VDDOUT SW5VOUT COMPOUT ANT CTRL VCC BATT DET AUDIO OUT CTRL CD OUT ILM AJ ILM OUT GND

Connected to ACC.

Regular 5.7V.

Output voltage is 5V when M or H level applied to CTRL pin.

Output for ACC detector.

L:ANT output OFF , H:ANT output ON

Connected to VCC.

Low battery detect.

Output voltage is 9V when M or H level applied to CTRL pin.

L:BIAS OFF, M:BIAS ON, H:CD ON

Output voltage is 8V when H level applied to CTRL pin.

Adjustment pin for ILM output voltage.

Output voltage is 10V when M or H level applied to CTRL pin.

Connected to GND.

LC75878W (IC601) : LCD driver

1. Pin layout

100 ~ 76

KD-LX111

2. Block diagram

OSC

VLCD

VLCD0

VLCD1

VLCD2

VLCD3

VLCD4

VDD

VSS

1

~

25

26 ~ 50

P1

GENERAL

PORT

CLOCK

GENERATOR

CONTRAST

ADJUSTER

P4

75

~

51

COM1

COMMON

DRIVER

COM8

S75/COM9

S74/COM10

S73

SEGMENT DRIVER & LATCH

CONTROL REGISTER

SHIFT REGISTER

CCB

INTERFACE

S1

3. Pin function

No. Symbol

1~73

74

75 76~83 84~87

88

89

90

91

92

93

94

95

96

97

98

99

100

SEG1~SEG73 SEG74 SEG75 COM8~COM1 P1~P4 VDD VLCD VLCD0 VLCD1 VLCD2 VLCD3 VLCD4 VSS OSC LCD RESET CE CL DI

DI

INH

I/O

O

Segment driver output pin.

O

Segment driver output pin.

O

Segment driver output pin.

O

Common driver output pin.

O

General-purpose output pin.

-

Logic block power supply pin.

-

LCD driver power supply pin.

O

LCD driver bias 4/4 voltage (H-level) power pin.

I

LCD driver bias 3/4 voltage (intermediate level) power pin.

I

LCD driver bias 2/4 voltage (intermediate level) power pin.

I

LCD driver bias 1/4 voltage (intermediate level) power pin.

I

LCD driver bias 0/4 voltage (L-level) power pin.

-

Power supply pin to connect to ground.

I/O

Oscillator pin.

I

Display off, general-purpose output port L fixed input pin.

I

Chip enable

I

Synchronization clock

I

Transfer data

Function

CL

CE

1-29

KD-LX111

BR24C16F-X (IC703) : EEPROM

1. Pin layout

VCC WP SCL SDA

A0 A1 A2

3. Block diagram

GND

2. Pin function

Symbol

VCC

GND

A0,A1,A2

SCL SDA

WP

I/O

-

Power supply.

-

GND

I

No use connect to GND.

I

Serial clock input.

I/O

Serial data I/O of slave and ward address.

I

Write protect terminal.

Function

A0 1

A1 2

A2 3

GND 4

11bit

Address

decoder

Control circuit

High voltage osc circuit

16kbit EEPROM allay

11bit

START

Slave Ward

Address resister

Power supply voltage det.

STOP

HD74HC126FP (IC771) : Changer Control

OE1

A1

1

2

14

13

Vcc

OE4

ACK

8bit

Data

resister

8 Vcc

7 WP

6 SCL

5 SDA

1-30

Y1

OE2

A2

Y2

Vss

3

4

5

6

7

HD74HC126

12

11

10

9

8

A4

Y4

OE3

A3

Y3

Description of major ICs

FAN8037 (IC581) : CD driver

1. Pin layout & Block diagram

48 47 46 45 44 43 42 41 40 39 38

1

2

3

4

5

6

KD-LX111

37

36

35

34

33

32

31

2. Pin function

Symbol

No.

1

IN2+

2

IN2-

3

OUT2

4

IN3+

5

IN3-

6

OUT3

7

IN4+

8

IN4-

9

OUT4

10

CTL1

11

FWD1

12

REV1

13

CTL2

14

FWD2

15

REV2

16

SGND

17

FWD3

18

REV3

19

CTL3

20

SB

21

PS

22

MUTE

23

PVCC2

24

DO7-

7

8

9

10

11

12

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

Function

I/O

I

CH2 op-amp input(+)

I

CH2 op-amp input(-)

O

CH2 op-amp output

I

CH3 op-amp input(+)

I

Ch3 op-amp input(-)

O

CH3 op-amp output

I

CH4 op-amp input(+)

I

CH4 op-amp input(-)

O

CH4 op-amp output(+)

I

CH5 motor speed control

I

CH5 forward input

I

CH5 reverse input

I

CH6 motor speed control

I

CH6 forward input

I

CH6 reverse input

-

Signal ground

I

CH7 forward input

I

CH7 reverse input

I

CH7 motor speed control

I

Stand by

I

Power save

I

All mute

-

Power supply voltage

O

CH7 drive output(-)

M

s

S

w

C

M

s

S

w

C

M

s

S

w

C

T.S . D

D

STAND BY ALL MUTE

POWER SAVE

Pin No.

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

DO7+

DO6-

DO6+

PGND2

DO5-

DO5+

DO4-

DO4+

DO3-

DO3+

PGND1

DO2-

DO2+

DO1-

DO1+

PVCC1

REGOX

REGX

RESX VREF

SVCC

IN1+

IN1-

OUT1

30

29

28

27

26

25

Function

I/O

O

CH7 drive output(+)

O

CH6 drive output(-)

O

CH6 drive output(+)

-

Power ground2

O

CH5 drive output(-)

O

CH5 drive output(+)

O

CH4 drive output(-)

O

CH4 drive output(+)

O

CH3 drive output(-)

O

CH3 drive output(+)

-

Power ground1

O

CH2 drive output(-)

O

CH2 drive output(+)

O

CH1 drive output(-)

O

CH1 drive output(+)

-

Power supply voltage

I

Regulator feedback input

O

Regulator output

I

Regulator reset input

I

Bias voltage input

-

Signal supply voltage

I

CH1 op-amp input(+)

I

CH1 op-amp input(-)

O

CH1 op-amp output

1-31

KD-LX111

VICTOR COMPANY OF JAPAN, LIMITED

MOBILE ELECTRONICS DIVISION PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.49696)

200206