Jvc Kd-lx333 User manual

SERVICE MANUAL

CD RECEIVER

No.49722

Jun. 2002

KD-LX333

Area Suffix

J Northern America

Contents

Safety precaution

Preventing static electricity

Disassembly method

Adjustment method

1-2

1-3

1-4

1-13

1-14

1-16

1-17~33

Flow of finctional operation intil opelation

until TOC read

Maintenance of laser pickup

Replacement of laser pickup

Description of Major ICs

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-2

!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.

Safety precaution

!Please use enough caution not to see the beam directly or touch it in case of an

adjustment or operation check.

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-3

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.

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

(caption)

Anti-static wrist strap

Conductive material

(conductive sheet) or iron plate

Front bracket

CD mechanism

control board

Damper bracket

CD mechanism ass’y

FD screw

Feed motor ass’y

FD gear Pickup unit

Soldering

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-4

Remove the two screws Aattaching the bottom

cover to the top chassis on the bottom of the body.

Remove the two screws Battaching the top chassis

on both sides of the body.

Remove the two screws Cand the two screw D

attaching the heat sink on the left side of the body.

Remove the two screws Eand the screw Fon the

back of the body.

Remove the two screws Gon the upper side of the

body.

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.

1.

2.

3.

4.

5.

6.

Disassembly method

Removing the top chassis(See Fig.1 to 5)

Fig.1

Fig.2

Fig.3

Fig.4

Fig.5

Bottom cover

A

B

Top chassis

Heat sink

C

B

EFTop chassis

G

D

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-5

Prior to performing the following procedure, remove

the top chassis assembly.

Disconnect the flexible harness from connector

CN701 on the main board assembly.

Remove the four screws Hattaching the front panel

assembly on both sides of the body. Remove the

front panel toward the front.

1.

2.

Removing the front panel assembly

(See Fig.6 to 8)

Prior to performing the following procedure, remove

the top chassis assembly and the front panel

assembly.

Remove the four screws Iattaching the front board

on the back of the front panel assembly and release

the eight joints a.

1.

Removing the Front Board (See Fig.9)

Fig.6

Fig.8

Fig.7

Fig.9

Front panel assembly

H

Front panel assembly

I

Joints a

CN701

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-6

Prior to performing the following procedure, remove

the top chassis assembly and the front panel

assembly.

Disconnect the harness from connector CN503and

CN504 on the main board.

Remove the four screws J and detach the lifter unit

from the bottom cover.

1.

2.

Removing the lifter unit (See Fig.10)

Prior to performing the following procedure, remove

the lifter unit.

Remove the washer attaching the clutch assembly

and detach the clutch assembly from the shaft of the

lifter unit.

Remove the two screws Kattaching the feed motor

(L).

1.

2.

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

Prior to performing the following procedure, remove

the lifter unit.

Remove the washer attaching the clutch assembly

and detach the clutch assembly from the shaft of the

lifter unit.

Remove the two screws Lattaching the feed motor

(R).

1.

2.

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

Clutch assembly

Fig.10

J

Lifter unit assembly

CN504

CN503

J

Fig.11

Fig.12

Lifter unit assembly

Feed motor (L) assembly

Washer K

L

Clutch assembly

Washer

Feed motor (R) assembly

Lifter unit assembly

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-7

Prior to performing the following procedure, remove

the top chassis assembly, the front panel assembly

and the lifer unit.

Disconnect the card wire from connector CN702 on

the main board and remove the operation assembly.

Remove the three screws Mattaching the right and

left brackets which fix gears on both sides of the

operation assembly.

Remove the springs 5 and 6 from the operation

assembly.

1.

2.

3.

Removing the operation assembly

(See Fig.13 to 16)

When reassembling, correctly engage

the switch S651 and S652 on the

main board and the right gear with

the part bof the operation assembly.

ATTENTION: Fig.13

Fig.14

Fig.15Fig.16

M

Spring 6

CN702

Operation assembly

Spring 5

M

Operation assembly b

S652

S651

Operation assembly

b

Operation assembly b

S652 S651

Bracket (L) Bracket (R)

Bracket (R)

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-8

Prior to performing the following procedure, remove

the operation assembly.

Remove the six screws Nattaching the button panel

on the operation assembly.

Pull out the operation switch board from inside of the

button panel.

1.

2.

Removing the operation switch board

(See Fig.17 and 18)

Prior to performing the following procedure, remove

the top chassis.

Remove the three screws Oand the CD mechanism

assembly from the top chassis.

1.

Removing the CD mechanism assembly

(See Fig.19)

Button panel

Operation switch board

Button panel

CD mechanism assembly

Fig.17

Fig.18

Fig.19

NN

O

OO

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-9

Prior to performing the following procedure, remove

the top chassis.

Disconnect the flexible harness from connector

CN701, the card wire from CN702 on the main board

and the harness from CN503 and CN504

respectively.

Remove the three screws Pattaching the main

board assembly to the bottom cover on the upper

side of the body.

Remove the screw Qattaching 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.)

Remove the three screws Rattaching the rear heat

sink on the back of the body.

Remove the two screws Sand the screw T

attaching the rear panel. Now, the main board

assembly will be removed.

1.

2.

3.

4.

5.

Removing the main board assembly

(See Fig.20 to 22)

When reassembling, correctly engage

the switch S651 and S652 on the

main board and the right gear with

the part bof the operation assembly

(Refer to Fig.21).

ATTENTION:

Fig.20

Fig.22

Fig.21

P

CN504

CN701

Front panel assembly

CN702

CN503

P

S652

Main board S651

R

QR

S

T

Rear panel Rear heat sink

S

Joint c Joint c

b

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-10

Unsolder the part aand bon the CD mechanism

control board.

Remove the stator fixing the CD mechanism control

board and the damper bracket (To remove the stator

smoothly, pick up the center part).

Remove the screw Aattaching the CD mechanism

control board.

Remove the CD mechanism control board in the

direction of the arrow while releasing it from the two

damper bracket slots dand the front bracket slot e.

Disconnect the flexible wire from connector on the

pickup unit.

1.

2.

3.

4.

5.

Removing the CD mechanism control

board (See Fig.1 and 2)

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)

ATTENTION:

Prior to performing the following procedure, remove

the CD mechanism control board.

Remove the two springs fattaching the CD

mechanism assembly and the front bracket.

Remove the two screws Band the front bracket

while pulling the flame outward.

Remove the belt and the screw Cfrom the loading

motor.

1.

2.

3.

Removing the loading motor

(See Fig.3 to 5)

Fig.2

Fig.3

Fig.4

Shift the lock

Flexible wire

Pickup unit

FD gear

CD mechanism control board

Loading motor Front bracket

Front bracket Pull outward

Pull outward

Flame

f

B

f

B

Fig.5

C

Loading motor

Belt

Fig.1

Front bracket CD mechanism

control board

Damper bracket

h

c

d

b

a

DD

D

CD mechanism assembly

Ae

h

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-11

Prior to performing the following procedure, remove

the CD mechanism control board and the front

bracket (loading motor).

Remove the three screws Dand the damper

bracket.

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.

Remove the CD mechanism assembly and the two

springs hattaching the flame.

Remove the two screws Eand both sides rear

damper brackets from the dampers. Detach the CD

mechanism assembly from the left side to the right

side.

1.

2.

3.

4.

Removing the CD mechanism assembly

(See Fig.1, 6 to 9)

The CD mechanism assembly can be

removed if only the rear damper

bracket on the left side is removed.

ATTENTION:

Fig.6

Fig.7

Fig.8

Fig.9

Rear damper bracket

Fix arm (R)

Damper

DD

Damper bracket

CD mechanism

assembly

Flame h

h

D

Fig.5

Front bracket CD mechanism

control board

Damper bracket

h

c

d

b

a

DD

D

CD mechanism

assembly

A

e

Fix plate (L)

g

Rear damper bracket Fix arm (L)

Damper

E

Fix plate(R)

E

g

h

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-12

Prior to performing the following procedure, remove

the CD mechanism control board, the front bracket

(loading motor) and the CD mechanism assembly.

Remove the two screws Fand the feed motor

assembly.

1.

Removing the feed motor assembly

(See Fig.10)

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.

Detach the FD gear part of the pickup unit upward.

Then remove the pickup unit while pulling out the

part iof the FD screw.

1.

Remove the screw Gattaching the nut push spring

plate and the pickup mount nut from the pickup unit.

Pull out the FD screw.

2.

Removing the pickup unit

(See Fig.10 and 11)

When reattaching the pickup unit,

reattach the part jof the pickup unit,

then the part iof the FD screw.

ATTENTION:

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.

Turn up the CD mechanism assembly and remove

the two springs kon both sides of the clamper arms.

Open the clamper arm upward.

Turn the turn table, and remove the two screws H

and the spindle motor.

1.

2.

Removing the spindle motor

(See Fig.12 and 13)

Fig.10

Fig.11

Fig.12

Fig.13

Spindle motor

kk

Pickup unit

Part i

FD screw

Feed motor assembly

FD gear Pickup unit

Part j

F

Nut push spring plate

Pickup mount nut

Pickup unit

FD screw

G

H

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-13

Adjustment method

Test instruments required 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.Test disc(CTS-1000)

8.Extension cable for check

Standard measuring conditions

Power supply voltage DC 14.4V(11V to 16V allowance)

Load impedance 4 (4 to 8 allowance)

Line-out Level/Impedance

: 2.0 V/20k load(full scale)

Output impedance : 1k

Standard volume position

Balance and Bass & Treble volume : Indication "0"

Loudness : OFF

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 workingo

standard.

EXTGS004-22P

Frequency Band

FM: 87.5 MHz to 107.9 MHz

(with channel interval set to 200 kHz)

87.5 MHz to 108.0 MHz

(with channel interval set to 50 kHz)

AM: 530 kHz to 1710kHz

(with channel interval set to 10 kHz)

531 kHz to 1602 kHz

(with channel interval set to 9 kHz)

EXTGS004-26P

EXTLX001-2P

EXTLX001-6PC

EXTLX001-6PF

EXTLX001-16PF

EXTLX002-4P

EXTLX002-SWPWB

EXTLX002-16PC

EXTLX001-2P

EXTLX002-JIG : Kit including the following 8 extension parts.

1

2

3

4

5

6

7

2

1

2Pin, 30cm extension cord

6Pin, 30cm flat wire

6Pin x 2, interlocking connector

16Pin flat wire

16Pin, interlocking connector

3 switch PWB

4Pin, 30cm extension cord

EXTLX001-2P

EXTLX001-6PF

EXTLX001-6PC

EXTLX002-16PF

EXTLX002-16PC

EXTLX002-SWPWB

EXTLX002-4P

No. Parts number Quantity Description

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-14

When the pickup correctly moves

to the inner area of the disc v

Microprocessor

commands

FMO

TC94A14FA" 40"

FEED MOTOR

+TERMINAL

IC501"4"

REST SW

When correctly focused

Focus Servo Loop ONo

Power ON

Set Function CD

Disc inserted

Pickup feed to the inner area

YES

Laser emitted

Focus search

YES

Disc rotates

RF signal eye-patternn

remains closed

Tracking loop closed

RF signal eye-pattern

opens

TOC read out

Jump to the first track

Play

When the laser diode correctly

emits

Microprocessor

commands

SEL

TC94A14FA"38"

LD

CN501"15"

"No disc"

display

When the disc correctly rotates

Microprocessor

commands

DMO

TC94A14FA"41"

Spindle

motor(-)

IC501"7"

Tracking Servo Loop ON

RF signal

Rough Servo Modev

CLV Servo Mode

(Program Area)

CLV Servo Mode

(Lead-In Area;

Digital :0)

Flow of functional operation until TOC read

$83 $82 $81

0V

6V

4V

2V

OFF

ON

3.3V

Hi-Z

FEO

TA2157" 15"

2.2V

$84

3.3V

0V

4V

0V

$84 $86 $ A200

3.3V

2.2V

0V

6V

3.2

2V

Rough

Servo

Acceleration Servo CLV

0.5 Sec0.5 Sec

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-15

Feed section

Focus section

Spindle section

Tracking section

Is the voltage output at

IC541 pin "40" 5V or 0V? Is the wiring for IC541

(56)~(64) correct? Is 3.3V present at IC501

pin "20"?

Check CD 8V

and 5V.

Check the vicinity of

IC541.

Check the feed motor

connection wiring.

Is 6V or 2V present at

IC501 "4" and "5"?

Check IC501.

Is 4V present at both

sides of the feed motor?

Check the feed motor.

YES

NO YES NO

YES

NO

YES

YES YES

YES

YES YES

YES

When the lens is

moving:

4V

Does the S-search

waveform appear at

IC501 pins "8" and "9"?

Check the circuits in

the vicinity of IC501

pins "8","9"and"15".

Check the pickup and

its connections

Is the disk rotated?

Does the RF signal

appear at TP1?

Is the RF waveform at TP1

distorted?

Proceed to the Tracking

section

Is 4V present at IC501

pins "6" and "7"?

Check the spindle motor

and its wiring

Check the circuits in the

vicinity of IC521 "19"~

"24" or the pickup

Is 4V present at IC541

pins "41" ?

Check IC541 and

IC521.

Check the vicinity of

IC501.

When the disc is rotated

at first:

Approx. 1.2V

Is the tracking error signal

output at IC521 "11"?

Check IC541.

Check the circuit in the

vicinity of IC521 pins

"2"~"12".

Check the pickup and

its connections

NO

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-16

Maintenance of laser pickup

(1) Cleaning the pickup lens

Before you replace the pickup,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:amplitude

of eye patterrn) will be low.

(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.

Is RF output

1.3 0.4Vp-p?

YES

NO

O.K

Replace it.

Replacement of laser pickup

Turn of the power switch and, disconnect the

power cord.

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.

Check the eye-pattern at TP1.

Finish.

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-17

Descri

p

tion of ma

j

or ICs

Micro-

controller

interface

Audio output

circuit Digital output

16k

RAM

Address

circuit

1-bit

DAC Servo control

Clock

generator

LPF

PWM D/A

A/D

ROM

CLV servo

Sync signal

protection

EFM

Sub code

detector

Data

slicer

VCO

PLL

TMAX

Digital equalizer

automatic

adjustment circuit

RAM

Correction

circuit

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

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

64

63

62

61

60

59

58

57

56

55

54

53

52

51

50

49

BCK

LRCK

AOUT

DOUT

IPF

V

DD3

V

SS3

SBOK

CLCK

DATA

SFSY

SBSY

/HSO

/

UHSO

PV

DD3

PDO

VXDD3

XO

XI

XV

SS3

TEIN

V

DD3

V

SS3

DMO

FMO

AV

DD3

SEL

TEBC

RFGC

V

REF

TRO

FOO

DV

SS3

RO

DV

DD3

DVR

LO

DV

SS3

ZDET

V

SS5

BUS0

BUS1

BUS2

BUS3

BUCK

/CCE

/RST

V

DD5

TEZI

TEI

SBAD

FEI

RFRP

RFZI

RFCT

AV

DD3

RFI

SLCO

AV

SS3

VCOF

RV

REF

LPFO

LPFN

TMAX

TC9490FA (IC521) : DSP & DAC

1.Pin layout & Block daiagram

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-18

2.Pin function (1/2)

I/O

O

-

O

I/O

O

-

O

I

O

-

O

-

O

I

-

I

O

-

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.

PLL-only 3.3V power supply voltage pin.

EFM and PLCK phase difference signal output pin.

TMAX detection result output pin.

Inverted input pin for PLL LPF amp.

Output oin for PLL LPF amp.

PLL-only VREF pin.

VCO filter pin.

Analog GND pin.

DAC output pin for data slice level generation.

RF signal input pin.Zin selectable by command.

Analog 3.3V power supply voltage pin.

RFRP signal center level input pin.

RFRP signal zero-cross input pin.

RF ripple signal input pin.

Focus error signal input pin.

Sub-beam adder signal input pin.

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

Tracking error signal zero-cross input pin.

Focus equalizer output pin.

Tracking equalizer output pin.

Analog reference power supply voltage pin.

Symbol

BCK

LRCK

AOUT

DOUT

IPF

VDD3

VSS3

SBOK

CLCK

DATA

SFSY

SBSY

/HSO

/UHSO

PVDD3

PDO

TMAX

LPFN

LPFO

PVREF

VCOF

AVSS3

SLCO

RFI

AV

RFCT

RFZI

RFRP

FEI

SBAD

TEI

TEZI

FOO

TRO

VREF

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

TC9490FA(2/3)

Playback speed/UHSO /HSO

H

L

--

H

L

--

Normal

Double

4 times

---

TMAX OutputTMAX Detection result

Longer than fixed period

Within fixed period

Shorter than fixed period

"PVDD3"

"HIZ"

"AVSS3"

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-19

2.Pin function (2/2)

I/O

O

-

O

-

I

-

I

O

-

O

-

O

-

O

-

I/O

I

-

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.

Symbol

RFGC

TEBC

SEL

AVDD3

FMO

DMO

VSS3

VDD3

TESIN

XVSS3

XI

XO

XVDD3

DVSS3

RO

DVDD3

DVR

LO

DVSS3

ZDET

VSS5

BUS0

BUS1

BUS2

BUS3

BUCK

/CCE

/RST

VDD5

Pin No.

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

TC9490FA(3/3)

8

7

6

5

4

3

2

1V+

B OUTPUT

B INPUT

A INPUT

A OUTPUT

-

V-+

+-

NJM4565MD (IC151,IC171,IC323) : Operational amp

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

KD-LX333

1-20

UPD784215AGC101 (IC701) : Main micon

1.Pin layout

2.Pin functions(1/3)

1

~

25

75

~

51

100 ~ 76

26 ~ 50

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

I/O

I

O

-

I

-

I

-

I

-

I

-

O

-

I

O

I/O

I

O

Function

CD mechanical switch 2 detection signal input

CD mechanical switch 3 detection signal input

CD mechanical switch 4 detection signal input

Rest switch detection signal input

Motor signal control signal output at loading

Motor signal control signal output at leject

DIMMER pulse control output

POWER ON:H,FLAT PANEL:L

5V

GND

Reset detection teaminal

CD mechanical switch 1 detection signal input

J-BUS int

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

Pulse signal for CRUISE input(only in 330R)

Remocon input

5V

Temperature detection input

Key input 0

Key input 1

Key input 2

Level meter input

S.QUALITY level input

S.METER level input

GND

Subwoofer volume control analog output

Dot matrix contrast adjustment analog output

5V

J-BUS data input

J-BUS data output

J-BUS clock input and output

H:LX300 L:LX100

Data output to LCD driver

Clock output to LCD driver

Symbol

SW2

SW3

SW4

RST-SW

LMO

LM1

DIM-OUT

ILLUM1

VDD

X2

X1

VSS

XT2

XT1

RESET

SW1

BUS-INT

PS2

CRUISE

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

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

JVC KD-LX333 User manual

Popular Car Receiver manuals by other brands