JVC KD-LX333 Service Manual

SERVICE MANUAL

CD RECEIVER

KD-LX333

KD-LX333

Contents

Safety precaution
Preventing static electricity
Disassembly method
Adjustment method

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

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

Flow of finctional operation intil opelation
until TOC read
Maintenance of laser pickup
Replacement of laser pickup
Description of Major ICs

Area Suffix

J Northern America

1-14
1-16
1-16
1-17~33

No.49722

Jun. 2002

KD-LX333

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-LX333

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-LX333

Disassembly method

<Main body>

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

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-LX333

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-LX333

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-LX333

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-LX333

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

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-LX333

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

QR

S651

R

Rear heat sink

1-9

KD-LX333

<CD mechanism section>

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

1.

Unsolder the part a and b on the CD mechanism
control board.

2.

Remove the stator fixing the CD mechanism control
board and the damper bracket (To remove the stator
smoothly, pick up the center part).

3.

Remove the screw A attaching the CD mechanism
control board.

4.

Remove the CD mechanism control board in the
direction of the arrow while releasing it from the two
damper bracket slots d and the front bracket slot e.

5.

Disconnect the flexible wire from connector on the
pickup unit.

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)

CD mechanism assembly

D

h

Front bracket

Pickup unit

Damper bracket

D

A

Fig.1

e

b

Flexible wire

a

h

c

D

d

CD mechanism
control board

Shift the lock

Removing the loading motor

(See Fig.3 to 5)

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

1.

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

2.

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

3.

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

Loading motor

C

FD gear

f

B

Loading motor

Pull outward

Fig.2

CD mechanism control board

f

B

Front bracket

Fig.3

Front bracket

Pull outward

1-10

Fig.5

Belt

Flame

Fig.4

KD-LX333

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 D 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 E 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

h

Front bracket

CD mechanism

D

Flame

assembly

D

assembly

h

D

Damper bracket

D

A

Fig.5

e

b

Damper bracket

D

Fig.6

a

h

c

D

d

CD mechanism
control board

h

Fix plate (L)

g

Fix arm (R)

D

Fig.7

Rear damper bracket

g

Fig.8

Rear damper bracket

E

Fix plate(R)

E

Fix arm (L)

Damper

Damper

g

g

Fig.9

1-11

KD-LX333

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) and the CD mechanism assembly.

1.

Remove the two screws F 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 i of the FD screw.

Feed motor assembly

F

FD gear

Nut push spring plate

FD screw

Pickup unit

Fig.10

Part i

Part j

Pickup unit

G

Pickup mount nut

Pickup unit

ATTENTION:

2.

Remove the screw G 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 j of the pickup unit,
then the part i 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.

2.

Turn the turn table, and remove the two screws H
and the spindle motor.

FD screw

k

Spindle motor

Fig.11

k

Fig.12

H

1-12

H

Fig.13

Adjustment method

KD-LX333

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
EXTGS004-22P

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

requency Band

F

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 interv

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.

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

al set to 9 kHz)

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

No.

1
2
3
4
5
6
7

Parts number Quantity Description
EXTLX001-2P
EXTLX001-6PF
EXTLX001-6PC
EXTLX002-16PF
EXTLX002-16PC
EXTLX002-SWPWB
EXTLX002-4P

2
1
1
1
1
1
1

EXTGS004-26P

EXTLX001-16PF

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

EXTLX002-4P

EXTLX002-SWPWB

EXTLX002-16PC

EXTLX001-2P

EXTLX001-6PC

EXTLX001-2P

EXTLX001-6PF

1-13

KD-LX333

Flow of functional operation until TOC read

Power ON

When the pickup correctly moves

v

to the inner area of the disc

Set Function CD

When the laser diode correctly

emits

Microprocessor
commands

FMO
TC94A14FA" 40"

FEED MOTOR
+TERMINAL
IC501"4"

REST SW

When correctly focused

FEO
TA2157" 15"

Focus Servo Loop ONo

$83

$82

$81

3.3V
Hi-Z
0V

6V
4V
2V

OFF
ON

Pickup feed to the inner area

2.2V

RF signal eye-patternn
remains closed

RF signal eye-pattern
opens

Disc inserted

YES

Laser emitted

Focus search

Disc rotates

Tracking loop closed

TOC read out

YES

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"

$84 $86 $ A200

Acceleration Servo CLV

Rough
Servo

0.5 Sec 0.5 Sec

$84

3.3V
0V

4V
0V

3.3V

2.2V
0V

6V

3.2
2V

1-14

Jump to the first track

Play

Tracking Servo Loop ON

RF signal

Rough Servo Modev

CLV Servo Mode
(Program Area)

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

Feed section

Is the voltage output at
IC541 pin "40" 5V or 0V?

YES

Is 4V present at both
sides of the feed motor?

YES

NO YES NO

NO

Is the wiring for IC541

(56)~(64) correct?

NO

Is 6V or 2V present at

IC501 "4" and "5"?

NO

Is 3.3V present at IC501

pin "20"?

Check the vicinity of

IC541.

YES

Check the feed motor

connection wiring.

YES

Check CD 8V

KD-LX333

and 5V.

Check the feed motor.

Focus section

When the lens is

moving:

4V

Does the S-search

waveform appear at

IC501 pins "8" and "9"?

Spindle section

Is the disk rotated?

YES

Does the RF signal

appear at TP1?

YES

Is the RF waveform at TP1

distorted?

YES

Proceed to the Tracking

section

Check IC501.

NO

YES

NO

NO

NO

Check the circuits in
the vicinity of IC501
pins "8","9"and"15".

Check the pickup and

its connections

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

YES

YES

NO

Is 4V present at IC541

pins "41" ?

Check the vicinity of

IC501.

NO

YES

Check IC541 and

IC521.

racking section

T

When the disc is rotated

Is the tracking error signal

output at IC521 "11"?

Check IC541.

at first:

Approx. 1.2V

YES

YES YES

Check the circuit in the

vicinity of IC521 pins

"2"~"12".

Check the pickup and

its connections

1-15

KD-LX333

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.

Is RF output

1.3 0.4Vp-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 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..

1-16

Play a disc.

Check the eye-pattern at TP1.

Finish.

Description of major ICs

/

TC9490FA (IC521) : DSP & DAC

1.Pin layout & Block daiagram

KD-LX333

DV

SS3

RO

DV

DD3

DVR

LO

DV

SS3

ZDET

SS5

V

BUS0

BUS1

BUS2

BUS3

BUCK

/CCE

/RST

VXDD3XOXI

SS3

XV

TEIN

DD3VSS3

V

DMO

FMO

DD3

AV

SEL

TEBC

RFGC

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

49

50

51

52

LPF

Clock

generator

1-bit

DAC

PWM

Servo control

A/D

53

54

55

56

Address

circuit

ROM

RAM

Digital equalizer

automatic

adjustment circuit

57

58

59

60

61

62

Micro-

controller

interface

circuit

Correction

Audio output

circuit

16k

RAM

Digital output

CLV servo

Sync signal

protection

EFM

Sub code

detector

TMAX

63

VCO

PLL

REF

V

D/A

Data
slicer

TRO

FOO

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

TEZI

TEI

SBAD

FEI

RFRP

RFZI

RFCT

DD3

AV

RFI

SLCO

AV

SS3

VCOF

REF

RV

LPFO

LPFN

64

DD5

V

17

TMAX

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

BCK

LRCK

AOUT

DOUT

IPF

DD3

V

V

SBOK

CLCK

DATA

SFSY

SBSY

/HSO

UHSO

DD3

PV

PDO

SS3

1-17

KD-LX333

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

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.

-

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.

-

REF pin.

"PVDD3"

"HIZ"

"AV

SS3"

1-18

KD-LX333

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

DD3

RO

DD3

LO

SS5

DD5

SS3

SS3

SS3

I/O

O
O
O

­O
O

-

-

I

-

I

O

-

­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.

NJM4565MD (IC151,IC171,IC323) : Operational amp

+

A OUTPUT

-

A INPUT

+

A INPUT

V

1

2

3

-

4

8

V

B OUTPUT

7

B INPUT

-

6

5

+

B INPUT

1-19

KD-LX333

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

1-20

2.Pin functions(2/3)

KD-LX333

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

1-21

KD-LX333

+

­+

-

-

+

+

-

-

-

+

+

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

BA3220FV-X (IC301,IC401) : Line out amp

1.Pin layout
14

3220

17

8

2.Block diagram

1

CL-

14

LGND

13

REFL

2

Vcc

OUTL OUTR RGND

3

INL

1112

4

NFLCL+

10

REFR

FILTER

56

FIL

CR-

9

NFR

CR+

8

7

INR

1-22

BD3860K (IC911) : E.Vol & Loud

1.Terminal layout

33 23

KD-LX333

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

-14 +14dB

-14 +14dB

BASS

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

Pin

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

Pin

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-LX333

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

20k

3k

15k

50 A

12k

12k

BOTTOM

PEAK

20k

180k

40pF

20k

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

80k
20k

20k

15k

x0.5

x2

x0.5

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
Pin No.

1
2
3
4
5
6
7
8

Symbol

Vcc
FNI

FPI
TPI

TNI

MDI

LDO

SEL

I/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

O

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.

KD-LX333

9

10
11

12
13

TEBC

TEN

TEO

RFDC

GVSW

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

O

Tracking error signal generation amp output pin.
Combining TEO signal and RFRP signal with TC9490F/FA configures
tracking search system.

O

RF signal peak detection output pin

I

AGC/FE/TE amp gain change pin

GND

HIZ
Vcc

Connected to Vcc
through 1k resistor

Control signal output

ON

Control signal output

ON

ModeGVSW

CD-RW

CD-DA
CD-DA

LDOSEL

14
15
16
17

18
19
20

21
22
23
24

VRO
FEO

FEN

RFRP

RFRPIN

RFGO
RFGC

AGCIN

RFO
RFN

GND

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

-

1-25

KD-LX333

F

TA8273H (IC941) : Power amp

1.Block diagram

INRF

0.22 F

AC CONT1

INRR

0.22 F

+

Vcc 1/2 Vcc 3/4

2200 F 0.022

6 20

+

11

-

+

+

-

9

7

OUT RF+

OUT RF-

1

Protective

circuit

+

-

+

12

+

-

GND

8

OUTRR+

5

OUTRR-

3

GND

2

ST BY

REF

47 F

INLF

AC CONT2

PRE GND

INLR

+5V
ST ON

+

0.22 F

+

0.22 F

4

Stand by

Switch

Mute

10

+

Ripple

Filter

Mute

22

circuit

3.3 F

+

15

-

+

-

17

19

10K

+

OUTLF+

OUTLF-

Low Level
Mute ON

25

18

21

23

GND

OUTLR+

OUT LR-

13

14

Protective

circuit

-

+

+

-

1-26

ON TIME

22 F

Muting &

16

+

ON Time Control

Circuit

GND

24

2.Terminal layout

KD-LX333

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

RPM6938-SV4 (IC602) : Remote sensor

1.Block diagram

AMP

I/V
conversion

PD

magnetic shield

BPF

fo
trimming
circuit

AGC

Detector

Vcc

Comp

Vcc

22k

Rout

GND

1-27

KD-LX333

BR24C16F-X (IC703) : EEPROM

1. Pin layout

VCC WP SCL SDA

A0 A1 A2 GND

3. Block diagram

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 W ard
Address resister

Power supply
voltage det.

STOP

BU4066BCFV-X (IC322) : Quad analog switch

1. Pin layout & Block diagram
VDD C1 C4 I/O4 I/O3O/I4 O/I3

14 13 12 11 810 9

ACK

8bit

Data
resister

8 Vcc

7 WP

6 SCL

5 SDA

1-28

1234 756

I/O1 O/I1 O/I2 I/O2 VssC2 C3

FAN8037 (IC581) : CD driver

1. Pin layout & Block diagram

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

KD-LX333

2. Pin function

Pin

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-

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
D

D
D

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

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

1-29

KD-LX333

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

TAB

note1) TAB (header of IC)

connected to GND

ILM AJGND GND

13

C2

0.1u

C:F

1-30

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.

KD-LX333

T

HD74HC126FP (IC771) : Changer control

OE1

A1

Y1

OE2

A2

Y2

Vss

1

2

3

4

5

6

7

HD74HC126

14

13

12

11

10

9

8

Vcc

OE4

A4

Y4

OE3

A3

Y3

NJM2100M (IC821) : Operational amp

A OUT

A IN–
A IN+

VEE

1

A

+–

2

B

+–

3
4

8
7

6
5

VCC
B OUT

B IN–
B IN+

NJM2904M (IC951) : Ope amp

1.Pin layout

1A OUT

2A -IN

8

7

+

V

B OU

M5282FP-X (IC321) : E. volume

1. Pin layout

1
2
3
4
5

3. Pin function

Pin

Symbol Function

No.

1

Vcc/2

2

Amp+IN

3

Amp-IN

4

Amp OUT

5

GND
6
7

VCA IN
8
9

VCA OUT

10

NC

Vc

Vcc

10

9
8
7
6

Vcc/2 output for microphone amp.
Microphone amp. positive input terminal.
Microphone amp. negative input terminal.
Microphone amp. output terminal.
Ground.
Non connection.
VCA input terminal.
VCA control terminal.
VCA output terminal.
Power supply.

2. Block diagram

3A +IN

4

10

1

2
3

457

9

8

6

5GND

B -IN

B +IN

1-31

KD-LX333

LC75878W (IC601) : LCD driver

1. Pin layout

100 ~ 76

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

1-32

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

TB2118F-X (IC21) : PLL

1.Terminal Layout

2423222120191817161514

KD-LX333

13

2.Block diagram

osc

2

1

XO

24

XI

FM VCO

AMVCO

IFC

CE

DIN

CK

DOUT

15

16

13

3

4

5

6

123456789

Buff.

ON/OFF

OSC circuit

AMP

AMP

AMP

Serial

Interface

101112

Reference Counter

Prescaler

20-bit BINARY COUNTER

Resistor 1
Resistor 2

I/O PORT

Phase

Comparator

4-bit

Swallow counter

12-bit

Programmable counter

22-bit

40bit shift register

OUTPUT PORT

Constant

power supply voltage

switch

Vdd

Vcc

switch

AM CP.

20

­+

+

-

RF

22

19

Vt

18

FM cp

3.Pin Function

Pin

Symbol I/O Function

No.

XOUT

10
11
12

1
2
3
4
5
6
7
8
9

OSC

CE

DI

CK

DOUT

SR
I/01
I/02

OUT1
OUT2
VDD2

Crystal oscillator pin

O

Non connect

­Chip enable input

I

Serial data input

I

Clock input

I

Serial data output

O

Register control pin

O

I/O ports

I/O

I/O ports

I/O

Non connect

­Non connect

­Single power supply for REF. frequency block

-

7
SL

8

9

I/O -2I/O -1

10 11

12

out-2out-1

vdd2

Pin

Symbol I/O Function

No.

IFC

13

VDD

14

FMIN

15

AMIN

16

DGND

17

FMCP

18

Vt

19

AMCP

20

VCC

21

RF

22

AGND

23

XIN

24

17

14

IF signal input

I

Power pins for digital block

­FM band local signal input

I

AM band local signal input

I

Connect to GND (for digital circuit)

­Charge pump output for FM

O

Tuning voltage biased to 2.5V.

­Charge pump output for AM

O

Power pins for analog block

­Ripple filter connecting pin

I

Connect to GND (for analog circuit)

­Crystal oscillator pin

I

21

23

a-gnd

vccd-gndvdd

1-33

KD-LX333

VICTOR COMPANY OF JAPAN, LIMITED

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

(No.49722)

200206