JVC KS D580 Service Manual

SERVICE MANUAL

CD RECEIVER

KD-S6250 / KD-S580

KD-S6250

KD-S6250/KD-S580

Contents

Safety precaution
Preventing static electricity
Disassembly method
Adjustment method

31

KD-S580

Difference point

KD-S6250

KD-S580

MO

MO

1-2
1-3
1-4
1-11

DIRECT

DIRECT

TRACK

TRACK

Color

ACCESS

ACCESS

RND

RPT

KD-S580

RND

RPT

MODE

KD-S6250

CD

AM

MODE

SCM

FM

CD

AM

SCM

Remocon

FM

SSM

SSM

Silver

Metallic gray

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

Area Suffix

J ------ Northern America

1-12
1-14
1-14
1-15

COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.

No.49666

Dec. 2001

KD-S6250/KD-S580

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-S6250/KD-S580

Preventing static electricity

1.Grounding to prevent damage by static electricity

Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged,
can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.

2.About the earth processing for the destruction prevention by static electricity

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

2-1 Ground the workbench

Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over
it before placing the traverse unit (optical pickup) on it.

2-2 Ground yourself

Use an anti-static wrist strap to release any static electricity built up in your body.

(caption)
Anti-static wrist strap

Conductive material

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.

(conductive sheet) or iron plate

4.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

Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for pick-up and how to
detach the substrate.

1.Solder is put up before the card wire is removed from connector on
the CD substrate as shown in Figure.
(When the wire is removed without putting up solder, the CD pick-up
assembly might destroy.)

2.Please remove solder after connecting the card wire with
when you install picking up in the substrate.

Front bracket

Feed motor ass’y

FD screw

CD mechanism
control board

Soldering

FD gear

Pickup unit

1-3

KD-S6250/KD-S580

Disassembly method

<Main body>

Removing the front panel assembly

(See Fig.1)

1.

Press the eject button in the lower right part of the
front panel. Remove the front panel assembly from
the body.

Front panel assembly

Eject button

Fig.1

Removing the front chassis assembly

(See Fig.2 and 3)

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

1.

Release the four joint tabs a on both sides of the
front chassis assembly and remove the front chassis
assembly toward the front.

Tab a

Tab a

Front chassis assembly

Heat sink

Fig.2

Tab a

1-4

Fig.3

Tab a

Front chassis
assembly

Removing the heat sink (See Fig.4)

1.

Remove the three screws A on the left side of the
body.

KD-S6250/KD-S580

Removing the bottom cover

(See Fig.5 and 6)

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

1.

Turn over the body and unjoint the five joints b with
the bottom cover and the body using a screwdriver.

A

Joints b

Joint b

Heat sink

Fig.4

Rear panel

Fig.5

A

Bottom cover

Joints b

Bottom cover

Joints b

Joints b

Joint b

Rear panel

Fig.6

1-5

KD-S6250/KD-S580

Removing the main board

(See Fig.7 and 8)

Prior to performing the following procedure, remove
the front panel assembly, the front chassis assembly,
the heat sink and the bottom cover.

1.

Remove the screw B, the four screws C and the
three screws D attaching the rear bracket on the
back of the body. Remove the rear panel.

2.

Remove the two screws E attaching the main board
on the bottom of the body. Disconnect connector
CN501 on the main board in the direction of the
arrow.

D

E

Rear panel

CC

D

Fig.7

Main board

B

C

D

E

Removing the CD mechanism section

(See Fig.9)

Prior to performing the following procedure, remove
the front panel assembly, the front chassis assembly,
the heat sink, the bottom cover and the main board.

1.

Remove the three screws F attaching the cassette
mechanism section on the back of the top chassis.

CN501

F

Fig.8

CD mechanism section

F

Fig.9

F

Top chassis

1-6

KD-S6250/KD-S580

Removing the control switch board

(See Fig.10 to 12)

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

1.

Remove the four screws G attaching the rear cover
on the back of the front panel assembly.

2.

Unjoint the eleven(KD-S625)or nine(KD-S580) joints
c with the front panel and the rear cover.

3.

Remove the control switch board on the back of the
front panel.

Front panel

Joints c

G

G

Rear cover

Fig.10

Joints c

G

G

Joints c

Rear cover

Joints c

Front panel

Front panel

Joints c

Joints c

Joints c

Fig.11

(KD-S6250)

Joints c

Rear cover

(KD-S580)

Fig.12

Control switch board

1-7

KD-S6250/KD-S580

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

Unsolder the part f and g on 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 F attaching 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 i and the front bracket slot j.

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 ass’y

m

Front bracket

Damper bracket

I

g

F

Fig.1

Pickup unit

I

j

Flexible wire

f

m

h

I

i

CD mechanism
control board

Shift the lock

FD gear

k

G

Loading motor

Pull outward

Fig.2

CD mechanism control board

Front bracket

Fig.3

Front bracket

k

G

Pull outward

1-8

Flame

Fig.4

KD-S6250/KD-S580

Removing the loading motor

(See Fig.3 to 5)

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

Remove the two springs k attaching the CD mechanism
ass’y and the front bracket.

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

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

Removing the CD mechanism ass’y

(See Fig.1, 6 to 9)

CD mechanism ass’y

I

Flame

Loading motor

m

H

Belt

Fig.5

Damper bracket

m

I

Fig.6

I

I

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

1.

Remove the three screws I 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 l
as shown in Fig.8 and 9.

3.

Remove the CD mechanism ass’y and the two
springs m attaching the flame.

4.

Remove the two screws J and both sides rear
damper brackets from the dampers. Detach the CD
mechanism ass’y from the left side to the right side.

ATTENTION:

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

Fix plate (L)

l

Fix arm (R)

Fig.7

Rear damper bracket

l

Fig.8

Rear damper bracket

J

Fix plate(R)

J

Fix arm (L)

Damper

Damper

l

l

Fig.9

1-9

KD-S6250/KD-S580

Removing the feed motor ass’y

(See Fig.10)

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

1.

Remove the two screws K and the feed motor ass’y.

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 ass’y and the
feed motor ass’y.

1.

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

Feed motor ass’y

K

FD gear

Nut push spring plate

FD screw

Pickup unit

Fig.10

Part n

Part O

Pickup unit

L

Pickup mount nut

Pickup unit

ATTENTION:

2.

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

When reattaching the pickuap unit,
reattach the part o of the pickup unit,
then the part n 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 ass’y and the
feed motor ass’y.

1.

Turn up the CD mechanism ass’y and remove the
two springs p on both sides of the clamper arms.
Open the clamper arm upward.

2.

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

FD screw

p

Spindle motor

Fig.11

p

Fig.12

M

1-10

M

Fig.13

Adjustment method

KD-S6250/KD-S580

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 1

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

How to connect the extension cable for adjusting

Standard volume position
Balance and Bass &Treble volume : lndication"0"
Loudness : OFF
BBE : OFF
Frequency Band
FM 87.5MHz ~ 107.9MHz
AM 530kHz ~ 1710 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.

The cardboard is cut in a suitable size.
uses for the insulation stand of mechanism.

EXTGS004-26P

1-11

KD-S6250/KD-S580

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 focused

Focus Servo Loop ON

Disc inserted

Pickup feed to the inner area

Laser emitted

Focus search

Disc rotates

RF signal eye-pattern
remains closed

Tracking loop closed

RF signal eye-pattern
opens

TOC readout

YES

YES

Microprocessor

commands

"No disc"

display

• When the disc correctly rotates

Microprocessor
commands

Spindle
motor (-)
IC581 "7"

AccelerationAcceleration

0.5 Sec

Rough

Servo

0.5 Sec

Servo CLV

1-12

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 feed motor?

YES

NO

Is the wiring for IC521

(90) ~ (100) correct?

NO

Is 6V or 2V present at

IC581 "5" and "6"?

NO

YES

YES

Is 5V present at IC581

pin "11"?

YES

Check the vicinity of

IC521.

Check the feed motor

connection wiring.

KD-S6250/KD-S580

NONO

Check CD 9V

and 5V.

Check the feed motor.

Focus Section

When the lens is

moving:

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

Check IC581.

NO

YES

NO

NO

Check the circuits in
the vicinity of IC581

pins "15" ~ "18".

Check the pickup and

its connections.

Is 4V present at IC581

pins "7" and "8" ?

Check the spindle motor

and its wiring.

YES

YES

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 pickup

Check the circuit in the

vicinity of IC501 pins

"2" ~ "12".

YESYES

Check the pickup and

its connections.

1-13

KD-S6250/KD-S580

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.

1-14

Play a disc.

Check the eye-pattern at TP1.

Finish.

Description of major ICs

HA13164 (IC901) : Regulator

1.Terminal layout

123456789101112131415

KD-S6250/KD-S580

2.Block diagram

3.Pin function

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

0.1u

C8

C1

100u

VCC ACC

8

2

1

7

Surge Protector

BIAS TSD

15

3

note1) TAB (header of IC)

connected to GND

ILM AJGND

13

C2

0.1u

C:F

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 applies 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 applies to CTRL pin.

Connected to GND.

1-15

KD-S6250/KD-S580

AN8806SB-W (IC501) : RF & Servo amp.

1.Pin layout

PD 1

LD 2
LDON 3
LDP 4
VCC 5
RF- 6
RF OUT 7
RF IN 8
C.AGC 9

ARF 10
C.ENV 11
C.EA 12
CS BDO 13

BDO 14
CS BRT 15
OFTR 16

/NRFDET 17

GND 18

2.Block diagram

36 PDAC
35 PDBD
34 PDF
33 PDE
32 PDER
31 PDFR
30 TBAL
29 FBAL
28 EF­27 EF OUT
26 TE­25 TE OUT
24 CROSS
23 TE BPF
22 VDET
21 LD OFF
20 VREF
19 ENV

6

29

728

27

910 17

8

11

12 19

­+

- +

­+

EQ

AGC

RF
DET

ENV CURCUIT

36

­+

35

­+

31

34

-

+

VCBA

-

+

VCBA

-

-

VCBA

+

­+

OFTR

BDO

­+

13

14

15

16

20

+

- +

32

33

­+

-

VCBA

+

+ -

­+

- +

21

2

+

-

24 25

30

23

26

22

14

3

1-16

KD-S6250/KD-S580

3. Pin function

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

Symbol

RF OUT

CS BDO

CS BRT

/NRFDET

LD OFF

TE BPF
CROSS
TE OUT

FE OUT

PD

LD

LD ON

LDP

VCC

RF-

RF IN

C.AGC

ARF

C.ENV

C.EA

BDO

OFTR

GND
ENV

VREF

VDET

TE-

FE­FBAL
TBAL

PDFR

PDER

PDF

PDE
PD BD
PD AC

I/O

I

APC amp . Input terminal
APC amp . Output terminal

O

LD ON/OFF control terminal

I

Connect to GND

-­Power supply

-­RF amp . Reversing input terminal

I

RFamp . Output terminal

O

AGC input terminal

I

AGC loop filter connection terminal

I/O

ARF output terminal

O

RF detection capacity connection terminal

I/O

HPF-amp capacity connection terminal

I/O

Capacity connection terminal for RF discernment side envelope detection

I/O

BDO output terminal

O

Capacity connection terminal for RF discernment side envelope detection

I/O

O

OFTR output terminal
RFDET output terminal

O

--

Connect to GND

O

3TENV output terminal

O

VREF output terminal

--

APC OFF control terminal

O

VDET output terminal

I

VDET input terminal

O

CROSS output terminal

O

TE amp . Output terminal

I

FE amp . Reversing input terminal

O

FE amp . output terminal

I

FE amp . Reversing input terminal

I

F.BAL control terminal

I

T.BAL control terminal

I/O

I-V amp conversion resistance adjustment terminal

I/O

I-V amp conversion resistance adjustment terminal

I

I-V amp input terminal
I-V amp input terminal

I
I

I-V amp input terminal

I

I-V amp input terminal

Function

AN8806SB-W

1-17

KD-S6250/KD-S580

LA4743K(IC321):Power AMP

1.Block diagram

IN 1

TA B

IN 2

+

0.22 F

+

0.22 F

11

1

12

Vcc 1/2 Vcc 3/4

6 20

-

+

Protective

circuit

-

+

2200 F 0.022 F

+

9

­7

+

OUT 1+

OUT 1-

PWR GND1

8

+

OUT 2+

5

-

OUT 2-

3

PWR GND2

2

ST BY

R.F

47 F

IN 3

PRE GND

IN 4

+5V
ST ON

+

0.22 F

N.C

+

0.22 F

4

Stand by

Switch

Mute

10

+

Ripple

Filter

Mute

22

circuit

3.3 F

+

15

-

+

-

17

19

10K

+

OUT 3+

OUT 3-

Low Level
Mute ON

25

18

21

23

PWR GND3

OUT 4+

OUT 4-

13

14

Protective

circuit

-

+

+

-

1-18

ON TIME C

22 F

Muting &

16

+

ON Time Control

Circuit

PWR GND4

24

2.Terminal layout

KD-S6250/KD-S580

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

TA B
GND
OUTRR­STBY
OUTRR+
VCC1/2
OUTRF­GND
OUTRF+
RIPPLE
INRF
INRR
SGND
INLR
INLF
ONTIME
OUTLF+
GND
OUTLF­VCC3/4
OUTLR+
MUTE
OUTLR­GND
NC

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

LA4743K

1-19

KD-S6250/KD-S580

LA6567H-X(IC581):CD DRIVER

1.Pin layout & blockdiagram

VCC2

V05-

V05+

V04+

V04-

V03+

V03-

FR

1

2

3

4

5

6

7

FR

CH 3,4,5

Power supply

CH5

CH4

CH3

Thermal shutdown

Output control

Level shiftLevel shiftLevel shiftLevel shift

Input

22K 11K

Signal system power supply

28

27

26

25

24

23

22

FR

REV

FWD

S-GND

VCONT

VIN4

VIN4G

VCC-S

FR

V02+

V02-

V01+

V01-

VCC1

VIN1

VIN1G

8

9

10

11

12

13

14

CH2

CH1

CH1,2

Power supply

11K

22K

5VREG(PNPTr

The outside putting)

22K

11K

22K

11K

21

20

19

18

17

16

15

VREF-IN

REG-OUT

REG-IN

VIN3G

VIN3

VIN2G

VIN2

1-20

KD-S6250/KD-S580

2. Pin function

Pin no. Symbol

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

VCC2

V05­V05+
V04+

V04­V03+

V03­V02+

V02­V01+

V01-

VCC1

VIN1

VIN1G

VIN2

VIN2G

VIN3

VIN3G

REG-IN

REG-OUT

VREF-IN

VCC-S

VIN4G

VIN4

VCONT

S-GND

FWD

LA6567H-X(2/2)

Function

CH3,4,5 Power supply( It is short with VCC1,VCC-S)
Loading output(-)
Loading terminal (+)
CH4 Output terminal(+)
CH4 Output terminal(-)
CH3 Output terminal(+)
CH3 Output terminal(-)
CH2 Output terminal(+)
CH2 Output terminal(-)
CH1 Output terminal(+)
CH1 Output terminal(-)
CH1,2(BTL) Power supply(It is short with VCC-S,VCC2)
CH1 Input terminal
CH1 Input terminal(For gain adjustment)
CH2 Input terminal
CH2 Input terminal(For gain adjustment)
CH3 Input terminal
CH3 Input terminal(For gain adjustment)
Regulator terminal(Outside putting PNP base)
Regulator terminal(Outside putting PNP collector)
Standard voltage input terminal
Signal system power supply(It is short with VCC1,VCC2)
CH4 Input terminal(For gain adjustment)
CH4 Input terminal
5CH(VLO) Output voltage set terminal
Signal system GND
5CH(VLO)Signal output switch terminal(FWD),Input of logic of loading part

28

REV

5CH(VLO)Signal output switch terminal(REV),
Input of logic of loading part

Frame(FR)at the center becomes system GND.
Please be short-circuited on the outside and use the terminal of the power supply system
and three teminals of VCC-S, VCC1,VCC2.

1-21

KD-S6250/KD-S580

LC72366-9A73 (IC801) : System CPU

1. Pin layout

25

~

40

2. 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
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

J-BUS SCK

DIMMER OUT

CD LSI RESET

24 ~ 1

41 ~ 64

Symbol FunctionPin No.

XIN

TEST2

J-BUS SI

J-BUS SO

J-BUS I/O

SUBQ

SQCK
RESET
LCD SI

LCD SO

LCD SCK

LCD CE
FM ILLUMI
AM ILLUMI
CD ILLUMI

LM0
LM1

KS2
KS1
KS0

DETACH

K2
K1
K0

Vdd

SW2

MCLK

M DATA

MLD

SCL

SDA

80

65

~

I/O

I

Crystal oscillator input port

I

Connect to ground

-

No use

-

No use

-

No use

-

No use

I/O

CD LSI subcode data input

-

No use

I/O

CD LSI subcode clock

I

Micon reset pin

-

No use

O

LCD driver data output

O

LCD driver clock signal

O

LCD driver chip enable port

-

No use

-

No use

-

No use

-

No use

O

CD loading motor output

O

CD loading motor output

-

No use

-

No use

-

No use

O

Output for initial setting diode matrix

O

Output for initial setting diode matrix

O

Output for initial setting diode matrix

I

Front panel detect

-

No use

I

Input for initial setting diode matrix

I

Input for initial setting diode matrix

-

5V power supply port (+B)

I

CD mechanism detect switch

O

CD LSI reset

O

CD LSI command clock signal

O

CD LSI command data output

O

CD LSI command load signal

-

No use

-

No use

O

E.volume clock output

O

E.volume data output

1-22

41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59

60
61
62
63

KEY CHANGE

64
65
66
67
68
69
70

FM IF COUNT

71
72
73
74
75
76
77
78
79
80

CD ON
RELAY

BLKCK

BEEP

SW4
SW1
SW3

REST
FLOCK
TLOCK

CD SENSE

STATUS

P.SAVES2

SD/ST

REMOCON

J BUS INT

BAND

MONO

IFRQ/AGC

MUTE

LEVEL

S.METER

KEY2

KEY1

KEY0

P.SAVE1

SENSE

NC
NC

Vdd
AM OSC
FM OSC

VSS

NC

E0

TEST1

XOUT

I/OPort Name FunctionPin No.

CD 8V supply on

­5V power contorl

­Sub-code/block/clock signal output

I

No use

­CD mechanism detect switch

I

CD mechanism detect switch

I

CD mechanism detect switch

I

CD pickup rest position

I

Focus lock signal output Active:Low

I

Tracking lock signal output Active :low

I

CD LSI sense signal

I

CD LDI status signal

I

power save 2:+B detect

I

Station detection,Stereo signal input H:SD

I

Remocon input

I

No use

­FM/AM band selection

O

FM mono selection

­During FM auto search,IF request output H after SD detected. During AM

O

suto search,AGC output
Muting switch

O

Level meter input

I

S meter input

I

Control to GND

­Key 2 input port

I

Key 1 input port

I

Key 0 input port

I

Power save 1,ACC power detection

I

Voltage sensor port

I

No use

­FM frequency detecting

I

No use

­No use

­5V power supply (+B)

­No use

I

FM limited signal input

I

Ground port for power supply

­No use

­Error signal output port for PLL

O

Test port for LSI, To connect ground

-

4.5MHz crystal oscillator output

O

KD-S6250/KD-S580

LC72366-9A73(2/2)

1-23

KD-S6250/KD-S580

LC75823W (IC601) : LCD driver

1. Pin Layout & Symbol

S1
S2
S3
S4
S5
S6
S7
S8

S9
S10
S11
S12
S13
S14
S15
S16

DICLCE

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

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

S17

S18

S19

OSC

S20

Vss

S21

VDD2

VDD1

S22

S23

INH

S24

VDD

S25

COM3

COM2

S26

S27

COM1

S52

S28

S29

S51

S30

S50

S31

S49

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

S32

S48
S47
S46
S45
S44
S43
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33

2. Pin Function

Pin No.

1 to 52

53 to 55

COM1 to COM3

56

57

58

59

60
61

62

63

Symbol

S1 to S52

VDD

INH

VDD1

VDD2

Vss

OSC

CE

CL

I/O

O

Segment output pins used to display data transferred

Function

by serial data input.

O

Common driver output pins. The frame frequency is given
by : t0=(fosc/384)Hz.

--

Power supply connection. Provide a voltage of between

4.5 and 6.0V.

I

Display turning off input pin.
INT="L" (Vss) ----- off (S1 to S52, COM1 to COM3="L"
INT="H" (VDD)----- on
Serial data can be transferred in display off mode.

I

Used for applying the LCD drive 2/3 bias voltage
externally.
Must be connected to VDD2 when a 1/2 bias drive scheme
is used.

I

Used for applying the LCD drive 1/3 bias voltage
externally.
Must be connected to VDD1 when a 1/2 bias drive scheme
is used.

--

Power supply connection. Connect to GND.

I/O

Oscillator connection.
An oscillator circuit is formed by connecting an external
resistor and capacitor at this pin.
Serial data CE : Chip enable
interface connection

I

to the controller. CL : Sync clock

1-24

64

DI

DI : Transfer data

TEA6320T-X (IC301) : E.volume

1.Pin layout

2.Block diagram

10 8 9 7 6

KD-S6250/KD-S580

5

12

SDA

1

GND

2

OUTLR

OUTLF

MUTE

TL
B2L
B1L

IVL

ILL

QSL

IDL

ICL

IMD

IBL
IAL

3
4
5
6
7
8

9
10
11
12
13
14
15
16

3.Pin functions

Pin

Symbol

No.

SDA

1

SCL

32

VCC

31

OUTRR

30

OUTRF

29

TR

28

B2R

27

B1R

26

IVR

25

ILR

24

QSR

23

IDR

22

Vref

21

ICR

CD-CH

TAPE

TUNER

20
19
18
17

CAP
IBR
IAR

I/O

Serial data input/output.

I/O

MUTE

21
31

2

19

16
15
13
11

14

22
20
18
17

Functions Functions

POWER
SUPPLY

SOURCE

SELECTOR

23 25 24 26 27 28

VOLUME 1

+20 to -31 dB

LOUDNESS

LEFT

VOLUME 1

+20 to -31 dB

LOUDNESS

RIGHT

Pin
No.

17

Symbol

IAR

BASS
LEFT

+15 dB

LOGIC

BASS

RIGHT

+15 dB

I/O

I

Input A right source.

TREBLE

LEFT

+12 dB

TREBLE

RIGHT
+12 dB

FUNCTION

ZERO CROSS

DETECTOR

VOLUME 2

0 to 55 dB
BALANCE

FENDER REAR

VOLUME 2

0 to 55 dB
BALANCE

FENDER FRONT

HC BUS

REC

VOLUME 2

0 to -55dB
BALANCE

FENDER FRONT

VOLUME 2

0 to -55dB
BALANCE

FENDER REAR

3

4

32

1

29

30

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

GND

OUTLR

OUTLF

TL

B2L

B1L

IVL

ILL

QSL

IDL

MUTE

ICL

IMO

IBL

IAL

Ground.

-

output left rear.

O

output left front.

O

Treble control capacitor left channel or

I

input from an external equalizer.
Bass control capacitor left channel or

-

output to an external equalizer.
Bass control capacitor left channel.

-

Input volume 1. left control part.

I

Input loudness. left control part.

I

Output source selector. left channel.

O

Not used

-

Not used

-

Input C left source.

I

Not used

-

Input B left source.

I

Input A left source.

I

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

IBR

CAP

ICR

Vref

IDR

QSR

ILR

IVR

B1R

B2R

TR

OUTRF

OUTRR

Vcc

SCL

I

Input B right source.

-

Electronic filtering for supply.

I

Input C right source.

-

Reference voltage (0.5Vcc)

-

Not used

O

Output source selector right channel.

I

Input loudness right channel.

I

Input volume 1. right control part.

-

Bass control capacitor right channel
Bass control capacitor right channel or

O

output to an external equalizer.
Treble control capacitor right channel or

I

input from an external equalizer.

O

Output right front.

O

Output right rear.

-

Supply voltage.

I

Serial clock input.

1-25

KD-S6250/KD-S580

NJM4565M-WE (IC151) : Ope. amp

A OUTPUT

1

+

8

V

-

A INPUT

+

A INPUT

V

2

3

-

4

B OUTPUT

7

B INPUT

-

6

5

+

B INPUT

1-26

KD-S6250/KD-S580

VICTOR COMPANY OF JAPAN, LIMITED

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

(No.49666)

200112