JVC KD-SX980 Service Manual

SERVICE MANUAL

CD RECEIVER

KD-SX980

Detachable

KD-SX980

Contents

Safety precaution
Preventing static electricity
Disassembly method
Adjustment method

SOUND

U

SOURCE

F

R

D

VOL

VOL

Area Suffix

J Northern America

1-2
1-3
1-4
1-19

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

1-20
1-22
1-22
1-23~43

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

No.49709

Mar. 2002

KD-SX980

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-SX980

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
(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.

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-SX980

Disassembly method

Removing the front panel unit

(See Fig.1)

1.

Press the release switch and remove the front panel
unit in the direction of the arrow.

Removing the front chassis
(See Fig.2 to 4)

1.

Remove the two screws A attaching the front
chassis.

Front panel unit

Fig.1

2.

Remove the two screws B on each side of the body.

3.

Release the two joints a and the two joints b on the
sides. Release the two joints c at the bottom and
remove the front chassis toward the front.

Joint c

Joint c

A

Joint a

Joint a

Fig.2

B

Front chassis

Fig. 3

Front chassis

Joint b

Joint b

Fig.4

Removing the heat sink (See Fig.5)

1.

Remove the four screws C attaching the heat sink
on the left side of the body, and remove the heat
sink.

1-4

C

C

Heat sink

Fig. 5

C

KD-SX980

Removing the bottom cover (See Fig.6)

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

1.

Turn the body upside down.

2.

Insert a screwdriver to the two joints d and two joints
e on both sides of the body and the joint f on the
back of the body, then detach the bottom cover from
the body.

CAUTION:

When disengaging the joint f using a
screwdriver, do not damage or break the
board.

Removing the rear panel (See Fig.7 )

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

Joints d

Joint f

Rear panel

Bottom cover

Joints e

Fig. 6

E

1.

Remove the eight screws D attaching the rear panel
and one screw E attaching the pine jack on the back
of the body.

D

Removing the main amplifier board assembly

(See Fig.8)

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

1.

Remove the two screws F attaching the main
amplifier board assembly on the top cover.

D D

D

D

Fig. 7

2.

Disconnect connector CN101 on the main amplifier
board assembly from the cassette mechanism
assembly.

F

Main board assembly

F

CN101

Fig. 8

1-5

KD-SX980

Removing the MP3 board

(See Fig.9)

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

1.

Disconnect the wire from connector CN601on the
MP3 board.

2.

Remove the five screws G and the MP3 board, releasing
the joint g and h.

G

g

h

CN601

G

Fig.9

Removing the CD mechanism assembly

(See Fig.10)

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

1.

Remove the three screws H attaching the cassette
mechanism assembly from the top cover.

Top cover

H

H

H

CD mechanism assembly

Fig. 10

1-6

Removing the (LCD & key) control switch

board (See Fig.11 to 13)

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

1.

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

2.

Unjoint the nine joints i with the front panel and the
rear cover.

3.

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

KD-SX980

I

I

Fig. 11

I

I

Joints i

Front panel

Joints i

LCD & Key control board

Rear cover

Joints i

Joints i

Fig. 12

Fig. 13

1-7

KD-SX980

<CD mechanism section>

Removing the top cover

(See Fig.1 and 2)

1.

Remove the two screws A on each side of the body.

2.

Lift the front side of the top cover and move the
cover backward to release the two joints a.

Removing the connector board

(See Fig.3 to 5)

CAUTION:

1.

Remove the screw B fixing the connector board.

2.

Solder the short-circuit point on the connector board.

Disconnect the flexible wire from the pickup.

Before disconnecting the flexible wire
from the pickup, solder the short-circuit
point on the pickup. No observance of
this instruction may cause damage of
the pickup.

Top cover

A

A

Joints a

A

Fig.1

Joints a

3.

Move the connector board in the direction of the
arrow to release the two joints b.

4.

Unsolder the wire on the connector board if
necessary.

CAUTION:

Unsolder the short-circuit point after
reassembling.

B

Connector board

Flexible wire

B

Connector board

Joints b

Flexible wire

Fig.2

Short-circuit

Fig.3

Top cover

DET switch

Pickup

Short-circuit point

(Soldering)

1-8

Frame

Pickup

Fig.4Fig.5

Removing the DET switch

(See Fig.3 and 6)

1.

Extend the two tabs c of the feed sw. holder and pull
out the switch.

2.

Unsolder the DET switch wire if necessary.

Removing the chassis unit

(See Fig.7 and 8)

Prior to performing the following procedure, remove
the top cover and the connector board.

B

Connector board

Joints b

Short-circuit

Fig.3

KD-SX980

DET switch

Pickup

1.

Remove the two suspension springs (L) and (R)
attaching the chassis unit to the frame.

CAUTION:

The shape of the suspension spring (L)
and (R) are different. Handle them with
care.

CAUTION:

When reassembling, make sure that the
three shafts on the underside of the
chassis unit are inserted to the dampers
certainly.

Chassis unit

Suspension spring (R)

Suspension spring (L)

Frame

DET switch

Chassis unit

Tab c

Feed sw. holder

Tab c

Fig.6

Shaft

Suspension spring (R)

Suspension spring (L)

Shafts

Damper

Damper

Damper

Frame

Fig.8Fig.7

1-9

KD-SX980

Removing the clamper assembly

(See Fig.9 and 10)

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

1.

Remove the clamper arm spring.

2.

Move the clamper assembly in the direction of the
arrow to release the two joints d.

Removing the loading / feed motor
assembly (See Fig.11 and 12)

Prior to performing the following procedure, remove
the top cover, the connector board and the chassis
unit.

1.

Remove the screw C and move the loading / feed
motor assembly in the direction of the arrow to
remove it from the chassis rivet assembly.

Clamper arm
spring

Joint d

Joint d

Clamper assembly

Fig.9

Clamper arm spring

Chassis rivet
assembly

Joint d

Clamper assembly

Joint d

2.

Disconnect the wire from the loading / feed motor
assembly if necessary.

CAUTION:

When reassembling, connect the wire
from the loading / feed motor assembly
to the flame as shown in Fig.11.

Chassis rivet assembly

Fig.10

Loading / feed motor assembly

C

1-10

Loading / feed motor assembly

Fig.12Fig.11

KD-SX980

Removing the pickup unit

(See Fig.13 to 17)

Prior to performing the following procedure, remove
the top cover, the connector board and the chassis
unit.

1.

Remove the screw D and pull out the pu. shaft
holder from the shaft.

2.

Remove the screw E attaching the feed sw. holder.

3.

Move the part e of the pickup unit upward with the
shaft and the feed sw. holder, then release the joint f
of the feed sw. holder in the direction of the arrow.
The joint g of the pickup unit and the feed rack is
released, and the feed sw. holder comes off.

4.

Remove the shaft from the pickup unit.

5.

Remove the screw F attaching the feed rack to the
pickup unit.

Reattaching the pickup unit

(See Fig.13 to 16)

Joint f

Shaft

D

Joint e

Pu. shaft holder

Feed sw. holder

Pickup unit

Fig.13

Pickup unit

E

Joint f

Joint e

1.

Reattach the feed rack to the pickup unit using the
screw F.

2.

Reattach the feed sw. holder to the feed rack while
setting the joint tab g to the slot of the feed rack and
setting the part f of the feed rack to the switch of the
feed sw. holder correctly.

3.

As the feed sw. holder is temporarily attached to the
pickup unit, set to the gear of the joint g and to the
bending part of the chassis (joint h) at a time.

CAUTION:

4.

Reattach the feed sw. holder using the screw E.

5.

Reattach the shaft to the pickup unit. Reattach the
pu. shaft holder to the shaft using the screw D.

Make sure that the part i on the underside
of the feed rack is certainly inserted to the
slot j of the change lock lever.

F

Feed rack

Feed rack

E

Joint g

Feed sw. holder

Part i

Pickup unit

Slot j

Joint g

Feed sw. holder

Fig.14

Shaft

Joint f

Joint h

Fig.15

D

Pu. shaft holder

Pickup unit

Pickup unit

Feed rack

Joint f

Feed sw. holder

Fig.17Fig.16

1-11

KD-SX980

Removing the trigger arm

(See Fig.18 and 19)

Prior to performing the following procedure, remove
the top cover, the connector board and the clamper
unit.

1.

Turn the trigger arm in the direction of the arrow to
release the joint k and pull out upward.

Joint k

Trigger arm

CAUTION:

When reassembling, insert the part l and

m of the trigger arm into the part n and
o at the slot of the chassis rivet

assembly respectively and join the joint
k at a time.

Chassis rivet assembly

Chassis rivet assembly

Trigger arm

Fig.18

Part n

Part o

Part l

Part m

Fig.19

Removing the top plate assembly

(See Fig.20)

Prior to performing the following procedure, remove
the top cover, the connector board, the chassis unit,
and the clamper assembly.

1.

Remove the screw H.

2.

Move the top plate assembly in the direction of the
arrow to release the two joints p.

3.

Unsolder the wire marked q if necessary.

1-12

H

Top plate assembly

Joints p

q

Fig.20

KD-SX980

Removing the select arm (L) / select lock
arm (See Fig.21 and 22)

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

1.

Bring up the select arm (L) to release from the link
plate (joint r) and turn in the direction of the arrow to
release the joint s.

2.

Unsolder the wire of the select arm (L) marked q if
necessary.

3.

Turn the select lock arm in the direction of the arrow
to release the two joints t.

The select lock arm spring comes off the select lock
arm at the same time.

Reassembling the select arm (L) / select
lock arm (See Fig.23 to 25)

Select arm (R)

Joint z

Link plate spring

Top plate

Joint a'

Joint y

Link plate

Joint z

Joint s

Fig.21

Select lock arm

Select lock arm

Joint b'

Joint r

Select arm (L)

Select lock arm

q

Top plate

Hook u

Select lock
arm spring

Joints t

REFERENCE:

1.

Reattach the select lock arm spring to the top plate

Reverse the above removing procedure.

and set the shorter end of the select lock arm spring
to the hook u on the top plate.

2.

Set the other longer end of the select lock arm spring
to the boss v on the underside of the select lock arm,
and join the select lock arm to the slots (joint t). Turn
the select lock arm as shown in the figure.

3.

Reattach the select arm (L) while setting the part r to
the first peak of the link plate gear, and join the joint
s.

CAUTION:

When reattaching the select arm (L),
check if the points w and x are correctly
fitted and if each part operates properly.

Joint r

Link plate

Link plate

Select lock arm spring

Boss v

Select arm (R)

Joint a'

Fig.22

Hook u

Joint t

Joint t

Select lock arm

Fig.23

Link plate spring

Select arm (L)

Joint b'

Joint r

Fig.25Fig.24

Joint s

Select
lock arm

Point x

1-13

KD-SX980

Removing the select arm (R) / link plate

(See Fig.21 and 22)

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

1.

Bring up the select arm (R) to release from the link
plate (joint y) and turn as shown in the figure to
release the two joints z and joint a’.

2.

Move the link plate in the direction of the arrow to
release the joint b’. Remove the link plate spring at
the same time.

REFERENCE:

Before removing the link plate, remove
the select arm (L).

Reattaching the Select arm (R) / link
plate (See Fig.25 and 26)

REFERENCE:

Reverse the above removing procedure.

Select arm (R)

Joint z

Link plate spring

Top plate

Joint a'

Part y

Link plate

Joint z

Joint s

Fig.21

Select lock arm

Select lock arm

Joint b'

Joint r

Select arm (L)

Select lock arm

q

Top plate

Hook u

Select lock
arm spring

1.

Reattach the link plate spring.

2.

Reattach the link plate to the link plate spring while
joining them at joint b’.

3.

Reattach the part y of the select arm (R) to the first
peak of the link plate while joining the two joints z
with the slots. Then turn the select arm (R) as shown
in the figure. The top plate is joined to the joint a’.

CAUTION:

When reattaching the select arm (R),
check if the part c’ is correctly fitted and
if each part operates properly.

Select arm (R)

Joint z

Link plate

Link plate spring

Joint a'

Part y

Part y

Fig.22

Joint b'

Joint z

Fig.25

Joints t

Select arm (L)

Select
lock arm

Point x

1-14

Link plate

Fig.26

KD-SX980

Removing the loading roller assembly

(See Fig.27 to 29)

Prior to performing the following procedure, remove
the clamper assembly and the top plate assembly.

1.

Push inward the loading roller assembly on the gear
side and detach it upward from the slot of the joint d’
of the lock arm rivet assembly.

Detach the loading roller assembly from the slot of
the joint e’ of the lock arm rivet assembly.

The roller guide comes off the gear section of the
loading roller assembly.

Remove the roller guide and the washer from the
shaft of the loading roller assembly.

2.

Remove the screw I attaching the lock arm rivet
assembly.

3.

Push the shaft at the joint f’ of the lock arm rivet
assembly inward to release the lock arm rivet
assembly from the slot of the slide plate. Extend the
lock arm rivet assembly outward and release the
joint g’ from the boss of the chassis rivet assembly.
The roller guide springs on both sides come off.

Roller guide

Washer

Loading roller assembly

Roller guide

Joint e'

Roller guide spring

Roller guide spring

Joint d'

Loading roller assembly

Roller guide spring

Lock arm rivet assembly

Fig.27

Loading roller assembly

Roller guide
spring

CAUTION:

When reassembling, reattach the left
and right roller guide springs to the lock
arm rivet assembly before reattaching
the lock arm rivet assembly to the
chassis rivet assembly. Make sure to fit
the part h’ of the roller guide spring (L)
inside of the roller guide (Refer to
Fig.30).

Roller guide

Washer

Roller shaft assembly

Joint h'

Loading roller assembly

Roller guide
spring

Fig.28-1

Fig.28-2

Chassis rivet assembly

Boss

Slide plate

Roller guide spring

I

Frame

Loading roller

Roller guide spring

Lock arm rivet assembly

Joint f'

Part g'

Fig.29Fig.30

1-15

KD-SX980

Removing the loading gear (5), (6) and
(7) (See Fig.31 and 32)

Prior to performing the following procedure, remove
the top cover, the chassis unit and the top plate
assembly.

1.

Remove the screw J attaching the loading gear
bracket. The loading gear (6) and (7) come off the
loading gear bracket.

2.

Pull out the loading gear (5).

Loading gear bracket

J

Loading gear (6)

Loading gear (5)

Loading gear (3)

Fig.31

J

Loading gear bracket

Loading gear (5)

Loading gear (6)

Loading gear (7)

Fig.32

1-16

Removing the gears (See Fig.33 to 36)

Prior to performing the following procedure, remove
the top cover, the chassis unit, the top plate
assembly and the pickup unit.

1.

Pull out the feed gear.

KD-SX980

Slot j'

Slide plate

2.

Move the loading plate assembly in the direction of
the arrow to release the slide plate from the two slots
j’ of the chassis rivet assembly.

3.

Detach the loading plate assembly upward from the
chassis rivet assembly while releasing the joint k’.
Remove the slide hook and the loading plate spring
from the loading plate assembly.

4.

Pull out the loading gear (2) and remove the change
lock lever.

5.

Remove the E-washer and the washer attaching the
changer gear (2).

6.

The changer gear (2), the changer gear spring and
the adjusting washer come off.

7.

Remove the loading gear (1).

8.

Move the hang plate rivet assembly in the direction
of the arrow to release from the three shafts of the
chassis rivet assembly upward.

9.

Detach the loading gear plate rivet assembly from
the shaft of the chassis rivet assembly upward while
releasing the joint l’.

Feed gear

Change plate
rivet assembly

Shafts

E-washer

Loading plate assembly

Joint k'

Slot j'

Fig.33

Joint l'

Loading gear (4)

Loading gear plate
rivet assembly

Loading gear (2)

Loading gear (1)

Change gear (2)

10.

Pull out the loading gear (4).

Loading plate assembly

Loading plate spring

Slot j'

Chassis rivet assembly

Joint k'

Slide hook

Slide plate

Slot j'

E-washer

Washer

Loading gear (2)

Loading plate spring

Adjusting washer

Change plate
rivet assembly

Chassis rivet assembly

Fig.34

Loading gear (1)

Loading gear (2)

Change lock lever

Loading gear (4)

Loading gear plate rivet assembly

Fig.36Fig.35

1-17

KD-SX980

Removing the turn table / spindle motor

(See Fig.37 and 38)

Prior to performing the following procedure, remove
the top cover, the connector assembly and the
chassis / clamper assembly.

1.

Remove the two screws K attaching the spindle
motor assembly through the slot of the turn table on
top of the body.

2.

Unsolder the wire on the connector board if
necessary.

K

Turn table

Fig.37

K

Turn table

1-18

Spindle motor

Fig.38

Adjustment method

KD-SX980

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

EXTGS004-26P

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

Frequency Band
FM 87.5MHz - 108.0 MHz
AM 530kHz - 1710kHz

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.

How to connect the extension cable for adjusting

CD Mechanism

Extension cable

EXTGS004-26P

1-19

KD-SX980

Flow of functional operation unit 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
IC561"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(-)
IC561"1"

$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

1-20

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
IC521 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 IC521

(56)~(64) correct?

NO

Is 6V or 2V present at

IC561 "4" and "5"?

NO

Is 3.3V present at IC561

pin "20"?

Check the vicinity of

IC521.

YES

Check the feed motor

connection wiring.

YES

Check CD 8V

KD-SX980

and 5V.

Check the feed motor.

Focus section

When the lens is

moving:

4V

Does the S-search

waveform appear at

IC561 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 IC561.

NO

YES

NO

NO

NO

Check the circuits in
the vicinity of IC561
pins "8","9"and"15".

Check the pickup and

its connections

Is 4V present at IC561

pins "6" and "7"?

Check the spindle motor

and its wiring

Check the circuits in the

vicinity of IC501 "19"~

"24" or the pickup

YES

YES

NO

Is 4V present at IC521

pins "41" ?

Check the vicinity of

IC561.

NO

YES

Check IC521 and

IC501.

Tracking section

When the disc is rotated

at first:

Is the tracking error signal

output at IC501 "11"?

Check IC521.

Approx. 1.2V

YES

YES YES

Check the circuit in the

vicinity of IC501 pins

"2"~"12".

Check the pickup and

its connections

1-21

KD-SX980

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..

1-22

Play a disc.

Check the eye-pattern at TP1.

Finish.

Description of major ICs

BR24C01AFV-W-X (IC502) : EEPROM

KD-SX980

1.Pin layout

2.Block diagram

A0

1

A1

2

A2

3

Vcc WP SCL SDA

A0 A1 A2 GND

1kbit EEPROM ARRAY

7bit

ADDRESS
DECODER

CONTROL LOGIC

SLAVE/WORD

7bit

ADDRESS REGISTER

START

STOP

ACK

8bit

DATA
REGISTER

Vcc

8

WP

7

SCL

6

GND

4

HIGH VOLTAGE GEN.

3.Pin function

Pin name I/O

Vcc

GND

A0,A1,A2

SCL

SDA

WP

*1 An open drain output requires a pull-up resister.

-

-

IN

IN

IN / OUT

IN

Power supply

Ground (0v)

Slave address set

Serial clock input

Slave and word address,
serial data input, serial data output *1

Write protect input

Vcc LEVEL DETECT

Function

SDA

5

1-23

KD-SX980

LA6579H-X (IC681) : 4-Channel bridge driver

1. Pin layout & Block diagram

VIN1-A

VIN1+A

VCCP1

1

­+

VIN1_SW
[H]: OP-AMP_A
[L]: OP-AMP_B

2

3

[H]

[L]

28

VIN1

27

VIN1-B

-

+

26

VIN1+B

VO+

VO-

VO2+

VO2-

FR

VO3+

VO3-

4

5

6

7

FR

8

9

Power system
GND

Level shift

33k

11k

-

Signal system
power supply

25

S-GND

+

24

VIN1-SW

Level shift

­+

Level shift

All outputs ON/OFF

H : ON
L : OFF

3.3VREG
(External:PTP Tr)

MUTE

Power system GND

Signal system
power supply

23

22

FR

21

20

MUTE

VREFIN

FR

VCCS

3.3VREG

1-24

VO4+

VO4-

VCCP2

VIN4

VIN4G

10

11

12

13

14

11k

33k

­+

Level shift

33k

33k

+

-

19

18

REGIN

VIN2G

11k

-

17

VIN2

+

16

VIN3G

11k

-

15

VIN3

+

3.Pin function

Pin No. Symbol Function

CH1 input AMP_inverted input
CH1 input AMP_non-inverted input
CH1 and CH2 power stage power supply
Output pin(+)for channel 1
CH1 output pin (-) for channel 1
Output pin(+)for channel 2
Output pin(-)for channel 2
Output pin(+)for channel 3
Output pin(-)for channel 3
Output pin(+)for channel 4
Output pin(-)for channel 4
CH3 and CH4 power stage powr supply
Input pin for channel 4
Input pin for channel 4(for gain adjustment)
Input pin for channel 3
Input pin for channel 3(for gain adjustment)
Input pin for channel 2
Input pin for channel 2(for gain adjustment)
External PNP transistor, base connection

3.3VREG output pin, external PNP transistor,collector connection

Signal system GND
Reference voltage application pin
Output ON/OFF pin
CH1 input OP AMP_changeover pin
Signal system GND
CH1 AMP_B non-inverted input pin
CH1 AMP_B inverted input pin
CH1 input pin, input OP_AMP output pin

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

1
2
3
4
5
6
7
8
9

VIN1-A
VIN1+A
VCCP1
VO1+
VO1­VO2+
VO2­VO3+
VO3­VO4+
VO4­VCCP2
VIN4
VIN4G
VIN3
VIN3G
VIN2
VIN2G
REGIN

3.3VREG
VCCS
VREFIN
MUTE
VIN1_SW
S_GND
VIN1+B
VIN1-B
VIN1

KD-SX980

W24L010AJ-AS-X (IC653) : SRAM

1.Pin layout 2.Block diagram 3.Pin functions

NC

A16

A14

A12

I/O1

I/O2

I/O3

Vss

1

2

3

4

5

A7

6

A6

7

A5

8

A4

9

A3

10

A2

11

A1

12

A0

13

14

15

16

32

VDD

31

A15

30

CS2

29

WE

28

A13

27

A8

26

A9

25

A11

24

OE

23

A10

22

CS1

21

I/O8

20

I/O7

19

I/O6

18

I/O5

17

I/O4

VDD

VSS

A16

CS2
CS1

OE

WE

A0

DECODER

CONTROL

CORE
ARRAY

DATA I/O

I/O1

I/O8

Symbol
A0-A16

I/O1-I/O8

CS1,CS2

WE

OE
VDD
VSS

NC

Function
Address inputs
Data inpts/outputs
Chip select input
Write enable input
Output enable input
Power supply
Ground
No connection

1-25

KD-SX980

TC94A14FA (IC621) : DSP & DAC

1.Terminal layout & block daiagram

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

48 47 46 45 44 43 42 41 40 39

Clock

LPF

generator

Micro­controller
interface

1-bit
DAC

Audio out

circuit

Address

circuit

circuit

Correction

Digital
output

16 k

RAM

PWM

Servo
control

ROM

RAM

CLV servo

Synchronous

guarantee

EFM

decoder

Sub code

decoder

38 37 36 35 34 33

D/A

A/D

Digital equalizer

automatic

adjustment circuit

Data
slicer

VCO

PLL

TMAX

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

64

2.Pin function

Pin

Symbol I/O Descroption

No

1

BCK

2

LRCK

O

Bit clock output pin.32fs,48fs,or 64fs selectable by command.

O

L/R channel clock output pin."L" for L channel and "H" for R channel. Output polarity
can be inverted by command.

3

AOUT

4

DOUT

5

IPF

O

Audio data output pin. MSB-first or LSB-first selectable by command.

O

Digital data output pin.Outputs up to double-speed playback.

O

Correction flag output pin. When set to "H", AOUT output cannot be corrected by C2
correction processing.

6

10
11
12
13
14
15

V

DD3

7

V

SS3

8

SBOK

9

CLCK

DATA
SFSY
SBSY

HSO

UHSO
PV

DD3

-

Digital 3.3V power supply voltage pin.

-

Digital GND pin.

O

Subcode Q data CRCC result output pin. "H" level when result is OK.

O

Subcode P-W data read I/O pin. I/O polarity selectable by command.

O

Subcode P-W data output pin.

O

Playback frame sync signal output pin.

O

Subcode block sync signal output pin. "H" level at S1 when subcode sync is detected.

I/O

General-purpose input / output pins.
Input port at reset.

-

PLL-only 3.3V power supply voltage pin.

17

161514131211101 2 3 4 5 6 7 8 9

1-26

Pin

Symbol I/O Description

No

16
17

PDO

TMAX

EFM and PLCK phase difference signal output pin.

O

TMAX detection result output pin.

O

KD-SX980

TC94A14FA

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
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

LPFN
LPFO

PVREF

VCOF

AVSS3

SLCO

RFI

AVDD3

RFCT

RFZI

RFRP

FEI

SBAD

TEI
TEZI
FOO
TRO

VREF
RFGC
TEBC

SEL

AVDD3

FMO

DMO

VSS3

VDD3

TESIN

XVSS3

XI

XO

XVDD3

DVSS3R

RO

DVDD3

DVR

LO

DVSS3L

ZDET
VSS5
BUS0
BUS1
BUS2
BUS3

BUCK

/CCE
/RST

VDD5

TMAX Detection Result
Longer than fixed period

Within fixed period
Shorter than fixed period

Inverted input pin for PLL LPF amp.

I

Output pin for PLL LPF amp.

O

PLL-only VREF pin.

­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.

­RF amplitude adjustment control signal output pin.

O

Tracking balance control signal output pin.

O

APC circuit ON/OFF signal output pin. At laser on, high impedance with UHS="L",

O

TMAX Output

DD3

"PV

"
"HiZ"
"AV

SS3

"

H output with UHS="H".
Analog 3.3V power supply voltage pin.

­Feed equalizer output pin.

O

Disc equalizer output pin.

O

Digital GND pin.

­Digital 3.3V power supply voltage pin.

­Test input pin. Normally, fixed to "L".

I

System clock oscillator GND pin.

­System clock oscillator input pin.

I

System clock oscillator output pin.

O

System clock oscillator 3.3V power supply voltage pin.

­DA converter GND pin.

­R-channel data forward output pin.

O

DA converter 3.3V power supply pin.

­Reference voltage pin.

­L-channel data forward output pin.

O

DA converter GND pin.

­1 bit DA converter zero detection flag output pin.

O

Microcontroller interface GND pin.

-

Microcontroller interface data I/O pins.

I/O

Microcontroller interface clock input pin.

I

Microcontroller interface chip enable signal input pin.At "L", BUS0 to BUS3 are active.

I

Reset signal input pin. At reset, "L".

I

Microcontroller interface 5V power supply pin.

-

1-27

KD-SX980

UPD784215AGC175 (IC701) : Main micon

1.Pin layout
100 ~ 76

1

75

~

25

26 ~ 50

2.Pin functions(1/2)

Pin No.

1
2

3~7

8

9
10
11
12
13
14
15
16
17
18

19~21

22
23
24
25
26
27
28
29
30
31
32
33

34,35

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

49~52

Symbol

CD RESET

CD MUTING

ANT CONT

VDD

VSS

XT2
XT1

RESET
CD REQ
BUS-INT

PS2

REMOCON

AVDD

AVREF0

VOL1

VOL2
KEY0
KEY1
KEY2

LEVEL

SM

AVSS

AVREF
BUS-SI

BUS-SO

BUS-SCK

BUS-I/O

LCD-DA

LCD-SCK

LCD-CE

BUZZER

E2PROM-DI

E2PROM-DO

E2PROM-CLK

OPEN

-

X2
X1

-

-

-

-

~

51

I/O

Function

O

Reset output for CD sub-micon

I

Muting request of CD sub-micon

-

No use

O

Anntena remote control

-

Micon power supply

-

-

-

GND

-

­I

Sysyem reset

I

CD request from CD sub-micon

I

J-BUS int

I

Power save2 H:STOP mode

-

-

I

Remocon input

-

A/D converter power supply

-

A/D reference voltage

I

Volume encoder pulse input 1

I

Volume encoder pulse input 2

I

Key input 0

I

Key input 1

I

Key input 2

I

Level meter input

-

-

I

S.METER input

-

GND

-

-

-

Reference voltage

I

J-BUS data input

O

J-BUS data output

I/O

J-BUS clock input/output

O

J-BUS I/O selection Output:H Input:L

O

Data output for LCD driver

O

CLK output for LCD driver

O

CE for LCD driver

O

Buzzer output

I

I2C data input

O

I2C data output

O

I2C clock output

I

Door open switch

-

-

1-28

2.Pin functions(2/2)

KD-SX980

Pin No.

53
54
55

56~60

61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77

78~80

81
82
83
84
85
86

87~89

90

91~93

94

95~99

100

Symbol

SD/ST

-

MONO

-

DETACH

-

SEEK/STOP

-

FM/AM

PLL-CE

PLL-DO

PLL-CLK

PLL-DI

TEL-MUTING

-

VSS

DIM-IN

PS1

POWER

CD-ON

MUTING

-

VDD

-

VOL-DA

VOL-CLK

-

SUB MUTING

-

STAGE1

-

TEST

-

CD-RW

I/O

Function

I

Station detector or stereo indicator input

-

-

O

Monoral selection output H:Monoral

-

-

I

Detach detect input H:Detach

-

-

O

Auto seek and stop selecting output

-

-

O

FM,AM band selecting output H:FM

O

CE output for PLL IC

O

Data output for PLL IC

O

Clock output for PLL IC

I

Data input from PLL IC

I

Telephone muting detection input

-

-

-

GND

I

Dimmer detector input L:Dimmer ON

I

Power save 1 L:ACC off

O

Power ON/OFF control output H:Power on

O

CD power supply control output H:CD power on

O

Muting output L:Muting on

-

-

-

Micon power supply

-

-

O

Data output for E-volume IC

O

Clock output for E-volume IC

-

-

O

Muting control output for subwoofer

-

-

I

Model selecting input

-

-

-

For rewriting flash memory

-

-

O

RF gain control L:CD-RW H:CD-DA

NJM4565V-X (IC572) : Dual ope amp

1.Terminal layout & Pin function

1

A

2

3

4

+

-

B

+

-

8

7

6

5

1

AOUTPUT

2

A-INPUT

3

A+INPUT

4

V

5

B+INPUT

6

B-INPUT

7

B OUTPUT

8

V

1-29

KD-SX980

UPD784225GK-623 (IC501) : CPU

1.Pin layout

60 ~ 41

61

40

~

80

1 ~ 20

2.Pin functions (1/2)

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

41~43

44
45
46

Symbol

TEMP IN

-

AVSS

ADCONT

-

AVREF1

EPROMDI

EPROMDO

EPROMCK

LCD CE
LCD DA
LCD CK
BUS I/O
BUS I/O

BUS SI

BUS SO

BUS SCK

BUSOUT

CD ON

CD REQ

CD MUTE

-

DSP RESET

CCE

BUCK

BUS3
BUS2
BUS1
BUS0

2X PLAY

RW SEL

VSS1

LD

LD/FE

MP3 DI

MP3 DO

MP3 CK

MP3 RESET

MP3 STB

-

DAC ML
DAC MC
DAC MD

21

~

I/O

O

O

I/O

O
O
O
O
O

O

I/O

O
O
O
O

O
O

O
I/O
I/O
I/O
I/O

O

O

O

O

O

O

O

O

O

O

O

Function

I

-

-

Temp. detection input terminal
No use
Connect to GND
Output H level at power to on

-

­I

­Connect to 3.3V
EEPROM data input terminal
EEPROM data output terminal
EEPROM clock signal input/output terminal
Chip enable output for LCD driver
Data output for LCD driver
Clock outout for LCD driver
JVC BUS input/output control terminal (negative)
JVC BUS input/output control terminal

I

JVC BUS data input terminal
JVC BUS data output terminal
JVC BUS clock input/output terminal
JVC BUS BUSOUT output terminal
Power supply (3.3V) control for CD
CD mechanism power supply to on request signal output terminal
CD mute signal output terminal

-

­CD DSP reset signal output terminal
CD DSP chip enable output terminal
CD DSP data clock output terminal
CD DSP data 3 input/output terminal
CD DSP data 2 input/output terminal
CD DSP data 1 input/output terminal
CD DSP data 0 inout/output terminal
RF frequency responce select output of 2xspeed playback
CD-RW select output terminal (RW:L)

-

Connect to GND
Loading signal output terminal
Loading/Feed select signal output terminal (H:LD,L:FE)

I

CD MP3 data input terminal
CD MP3 data output terminal
Clock signal output terminal for CD MP3 data
CD MP3 reset signal output terminal
CD MP3 standby signal output terminal (H:Standby)

-

­DAC mode control latch output terminal
DAC mode control BCK output terminal
DAC mode control data output terminal

1-30

2.Pin functions (2/2)

KD-SX980

Pin No.

47

48~51

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

Symbol

DAC CS

-

DISC SEL

DAC SEL

-

TEST MODE

MP3 SEL

8V DET

REST

SW2

RESET

SW1

B.DET

P.DET

BUS INT

MP3 REQ

-

VSS0

VDD1

X2
X1

VPP

XT2

XT1
VDD0
AVDD

IOP

KEY0
KEY1
KEY2
KET3

I/O

O

­I
I

­I
I
I
I
I
I
I
I
I
I
I

-

-

-

O

I

-

O

I

-

­I
I
I
I
I

Function
DAC chip select terminal
No use
8cm disc corespondance mode select terminal (respondance:L)
DAC select mode input terminal

­LCD/AD key/Remocon invalid select mode input terminal L:invalid
MP3 select mode input terminal
CD mechanism power supply detection terminal (L:8V on)
CD mechanism rest switch input terminal
CD mechanism SW2 input terminal
Riset signal input terminal
CD mechanism SW1 input terminal
Backup power supply detection input terminal (H:Stop mode)
Main power off detection input terminal (H:HALT mode)
JVC BUS comunication start squeeze input terminal
CD MP3 request signal input terminal

­Connect to GND
Connect to 3.3V
Ocsillator (6MHz)
Oscillator (6MHz)
Connec to GND
Open
Connect to GND
Connect to 3.3V
Connect to ADCONT
Pickup IOP measurment input terminal
Key input 0 (8bit A/D input) terminal
Key input 1 (8bit A/D input) terminal
Key input 2 (8bit A/D input) terminal
Key input 3 (8bit A/D input) terminal

LA47503 (IC301) : Power amp

1. Pin layout 2. Block diagram

20

Protective

125

6

circuit

235879

Mute

circuit

Protective

Ripple

filter

Stand by

switch

12111

232118191722

circuit

14132515104

24

Muting &

ON Time control

Circuit

16

1-31

KD-SX980

TC94A02F-005 (IC651) : DSP

AD11

32

33

AD10

AD12

31

CKS

30

TESTP

29

VSSR

28

VRAR

27

Ro

26

VDAR

25

VDAL

24

Lo

23

VRAL

22

VSSL

21

VSS

20

STANDBY

19

VDD

18

17

/oE

16

/CE

AD9

VDDT

AD8

AD7

AD6

REQ

VSS

AD13

DAC

34

Bus

register

C-Pointer

register

Y-Pointer

register

X-Pointer

Switch

register

X0 X1 X2

35

36

37

General

Output Port

38

39

40

41

Flag

2sets

Address Calc.

ERAM

2k word

*3

CROM

4k word

Y0 Y1 Y2

DAC

AX AY

MX MY MZ

MAC ALU

A3

A2

A0 A1

round & limit

round & limit

Audio.I/F

15

AD5

14

LRCKiA

13

BCKiA

12

SDi0

AD4

11

AD3

10

9

SDo

87

VDDT

AD14

/WR

AD16

AD15

io0

io1

VSS

VSSX

AD2

6

/MiCK

543

MiDio

AD1

AD0

MiMD

2

/RESET

1

42

YRAM

4k word

43

Timer

44

4546

47

48

Interrupt

Control

SRAM I/F

General Input Port

49

50

io2

io3

I-Bus

51

io4

XRAM

4k word

52

VDD

53

io5

X-Bus

Start

Prog.

54

io6

Y-Bus

DIT

55

io7

56

VSSP

PRAM

256word

57

PDo

Control

Program

PROM

4k*2+2k

VC0

58

VCoi

=10kword

59

VDDP

40bit

60

CK0

Decoder

Instruction

Timing

Generator

61

62

VDDX

Microcom.I/F

63

Xi

64

Xo

1-32

KD-SX980

3.Pin function (1/2)

Pin No. Symbol 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
41
42
43
44
45
46
47
48
49
50

/RESET
MiMD
AD0
AD1
MiDio
/MiCK
AD2
VDDT
SDo
AD3
AD4
SDi0
BCKiA
LRCKiA
AD5
CE
OE
VDD
STANBY
VSS
VSSL
VRAL
LO
VDAL
VDAR
RO
VRAR
VSSR
TESTP
CKS
AD12
AD11
AD10
AD9
VDDT
AD8
AD7
AD6
REQ
VSS
AD13
AD14
WR
AD16
AD15
io0
io1
VSS
io2
io3

I/O

O
O

I/O

O

O
O
O

O
O
O

O

O

O
O
O
O

O
O
O
O

O
O
O
O

O
I/O
I/O

I/O
I/O

I

Hard reset input terminal(H:Normal operation L: Reset)

I

Micon I/F mode select input terminal
External SRAM address output 0 terminal
External SRAM address output 1 terminal
Micon I/F data input/output terminal

I

Micon I/F clock input terminal
External SRAM address output 2 terminal

-

Digital power supply (3.3V)
Data output terminal
External SRAM address output 3 terminal
External SRAM address output 4 terminal

I

Data input terminal 0

I

Bit clock input terminal A

I

LR clock input terminal A
External SRAM address output 5 terminal
External SRAM chip enable terminal
External SRAM output enable terminal

-

Digital power supply (2.5V)

I

Standby mode control terminal

-

Digital GND

-

DAC Lch GND

-

DAC Lch reference voltage terminal
DAC Lch output terminal

-

DAC Rch power supply terminal(2.5V)

-

DAC Lch power supply terminal(2.5V)
DAC Rch output terminal

-

DAC Rch reference voltage terminal

-

DAC Rch GND

I

Test terminal

I

VCO select terminal
External SRAM address output 12 terminal
External SRAM address output 11 terminal
External SRAM address output 10 terminal
External SRAM address output 9 terminal

-

Digital power supply terminal (3.3V)
External SRAM address output 8 terminal
External SRAM address output 7 terminal
External SRAM address output 6 terminal
Squeeze request terminal to host

-

Digital GND
External SRAM address output 13 terminal
External SRAM address output 14 terminal
External SRAM write signal
External SRAM address output 16 terminal
External SRAM address output 15 terminal
External SRAM data input/output 0 terminal
External SRAM data input/output 1 terminal

-

Digital GND
External SRAM data input/output 2 terminal
External SRAM data input/output 3 terminal

TC94A02F-005

1-33

KD-SX980

3.Pin function (2/2)

Pin No. Symbol Function

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

io4
VDD
io5
io6
io7
VSSP
Pdo
Vcoi
VDDP
Cko
VDDX
Xi
Xo
VSSX

I/O

I/O

I/O
I/O
I/O

O

O

O

External SRAM data input/output 4 terminal

-

Digital power supply (2.5V) terminal
External SRAM data input/output 5 terminal
External SRAM data input/output 6 terminal
External SRAM data input/output 7 terminal

-

VCO GND
PLL phase error detection signal output terminal

I

VCO control voltage input terminal

-

VCO power supply

16.934 MHz clock output terminal

-

Power supply (2.5V) terminal for oscillator

I

Connection terminal for oscillator(input)
Connection terminal for oscillator(output)

-

GND for oscillator

BR24C16F-X (IC771) : EEPROM

1. Pin layout

VCC WP SCL SDA

A0 A1 A2 GND

2. Pin function

Symbol

VCC
GND

A0,A1,A2

SCL

SDA

WP

I/O

-

­I
I

I/O

I

TC94A02F-005

Function

Power supply.
GND
No use connect to GND.
Serial clock input.
Serial data I/O of slave and ward address.
Write protect terminal.

3. Block diagram

A0 1

A1 2

A2 3

GND 4

High voltage osc circuit

11bit

Address
decoder

16kbit EEPROM allay

11bit

START

Control circuit

Slave Ward
Address resister

STOP

Power supply
voltage det.

ACK

8bit

Data
resister

8 Vcc

7 WP

6 SCL

5 SDA

1-34

HA13164A (IC901) : Regulator

1.Terminal layout

123456789101112131415

KD-SX980

2.Block diagram

ANT OUT

C3

0.1u

EXT OUT

C4

0.1u

ANT CTRL

CTRL

CD OUT

C5

0.1u

AUDIO OUT

C6

10u

11

12

10

BATT.DET OUT

9

COMPOUT

6

VDD OUT

4

SW5VOUT

5

14

UNIT R:

+B

ACC

ILMOUT

R1

C7

0.1u

C8

0.1u

C1

100u

VCC ACC

8

2

1

7

Surge Protector

BIAS TSD

15

3

TA B

note1) TAB (header of IC)

ILM AJGND GND

connected to GND

13

C2

0.1u

C:F

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.

1-35

KD-SX980

HD74HC126FP-X (IC801) : Buffer

1.Terminal layout

3.Pin function

1C

1

1A

2

1Y

3

2C

4

2A

5

2Y

6

GND

7

2.Block diagram

VU

14

4C

13

4A

12

4Y

11

3C

10

3A

9

3Y

8

Vcc Vcc

1A
2A
3A

Input

4A
1C
2C
3C

See Function Table

4C

1Y

2Y

2Y

3Y

4Y

Output

Output

Output

Output

Input

C
L
H
H

A
X
L
H

Output

Y
Z
H
L

Note) H:High level

L:Low level
X:Irrelevant
Z:Off(High-impedance)
State a 3-state input

1k

S1

CL

1k

Sample as Load Circuit 1

Sample as Load Circuit 1

Sample as Load Circuit 1

Note) CL includes probe and jig capacitance

IC-PST600M/G/-W (IC702) : System reset

Co1

OP1

1

3

2

IN

Vout

OUT

1-36

HD74HCT126T-X : (IC503) Buffer

KD-SX980

1.Terminal layout

Vcc
14

1

1C

2.Block diagram

2

1A

4C
13

3

1Y

1A

4A
12

4Y
11

4

2C

5

2A

3C
10

3A
9

6

2Y

3Y
8

7

GND

3.Pin function

INPUT

C

L

H

H

H : High level
L : Low level
X : Irrelevant

Off (Hhigh-impedance)state of a 3-stage

Z :

output

OUTPUT

A

X

L

H

Y

Z

L

H

1C

2A

2C

3A

3C

4A

1Y

2Y

3Y

4C

4Y

1-37

KD-SX980

LC75873NW (IC601) : LCD driver

1.Pin layout

60 41

61

80

1 20

3.Pin function

Pin No.

79,80
1,2,3
to 66

67
78
69

40

21

Pin name

S1/P1 TO S4/P4
S5 to S68

COM1
COM2
COM3

2.Block diagram

VDD1

VDD2

INH

OSC

VDD

VSS

I/O

O

O

S5

S4/P4

S3/P3

S2/P2

COM2

COM3

COMON
DRIVER

CLOCK

GENERATOR

COM1

S68

S67

DI

CL

SEGMENT DRIVER

SHIFT REGISTOR

ADDRESS

DETECTOR

CE

S1/P1

Description

Segment outouts for displaying the display data
transferred by serial data input.
The S1/P1 to S4/P4 pins can be used as general­purpose output ports under serial data control.

Common driver outputs.
The frame frequency f0 is given by :
f0 = (FOSC/384)Hz.

74

76
77
78

75

71

72

70

OSC

CE
CL
DI

INH

VDD1

VDD2

VDD

I/O

I
I
I

I

I

I

-

Oscillator connection
An oscillator circuit is formed by connecting an
external resistor and capacitor to this pin.

Serial data transfer inputs.
Connected to the controller.
CE:Chip enable
CL:Synchronization clock
DI:Transfer data

Display off control input
INH= "L"(VSS) Display forced off

S1/P1 to S4/P4 = "L"
(These pins are forcibly set to the
segment output port function and held
at the low level.)
S5 to S68 = "L"
COM1 to COM3"L"

INH = "H"(HDD) Display on
However, serial data transfer is possible when
the display is forced off by this pin.

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.

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.
Provide a voltage of between 3.0 and 6.0V.

1-38

73

VSS

-

Power supply connection. Connect to ground.

NJU7241F25-X (IC651) : Regulator

1.Pin layout 2.Block diagram

KD-SX980

GND 1

5 STB

VIN 2

VIN 2

VOUT 3

4 NC

STB 5

GND 1

NJU7241F33-X (IC504) : Voltage regulator

PIN FUNCTION

1

5

2

3

4

1. GND

IN

2. V

3. VOUT

4. +NC

5. STB

Short protect

3 VOUT

Vref

1 GND

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

1-39

KD-SX980

PCM1716E-X (IC571) : D/A converter

1. Pin layout

2. Block diagram

BCK

LBCK

DATA

ML/llS
MC/DM1
MD/DM0

CS/WO

MODE

MUTE

RST

3. Pin function

Pin

Symbol Function

No.

1

LRCK

2

DATA

3

BCK

4

CLKO
5
6
7
8
9

10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

XTI

XTO

DGND

VDD

VDD2R

AGND2R

EXTR

NC
VOUTR
AGND1

Vcc1

VOUTL

NC

EXTL

AGND2L

Vcc2L
ZERO

RST

CS/IWO

MODE

MUTE
MD/DM0
MC/DM1

ML/IIS

28 15

114

Serial

Input

I/F

Mode

Control

I/F

Mult-level

8X Oversampling

Digital Filter

with

Function Controller

SCK

BPZ-Cont

Crystal OSC

XTI XTO CLKO Vcc1 VccAGND1 DGND

Delta-Sigma

Modulator

Power Supply

Vcc2L

DAC

DAC

AGND2L

Vcc2R

AGND2R

Open drain

Low-pass

Filter

Low-pass

Filter

I/O

I

LRCK clock input

I

Serial audio data input

I

Bit clock input for serial audio data

O

Buffered output of system clock

I

Oscillator input / External clock input

O

Oscillator output

-

Digital ground

-

Digital power +5V

-

Analog power +5V

-

Analog ground

O

Rch common pin of analog output amp

-

Non connection

O

Rch analog voltage output of audio signal

-

Analog ground

-

Analog power +5V

O

Lch analog voltage output of audio signal

-

Non connection

O

Lch common pin of analog output amp

-

Analog ground

-

Analog power +5V

O

Zero data flag

I

Reset

I

Chip select / Input format selection

I

Mode control select

I

Mute control

I

Mode control, Data / De-emphasis selection 1

I

Mode control, BCK / De-emphasis selection 2

I

Mode control, WDCK / Input format selection

VoutL

EXTL

VoutR

EXTR

ZERO

1-40

TB2118F-X (IC31) : PLL

1.Terminal Layout

2423222120191817161514

KD-SX980

13

2.Block diagram

osc

2

1

XO

24

XI

FM VCO

AMVCO

IFC

CE

DIN

DOUT

DIMM

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

Swallow counter

Programmable counter

Comparator

4-bit

12-bit

22-bit

40bit shift register

OUTPUT PORT

Phase

Constant

power supply voltage

switch

Vdd

switch

Vcc

AM CP.

20

­+

+

-

REG.

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

1-41

KD-SX980

SAA6579T-X (IC71) : RDS

1.Pin layout

QUAL

RDDA

Vref

MUX

ODA

V

V

SSA

CIN

SCOUT

2.Block diagram

1

2

3

4

5

6

7

8

RDCL

16

T57

15

OSCO

14

OSCI

13

V

0DD

12

V

SSD

11

TEST

10

MODE

9

121413

3.Pin function

4

8

7

CLOCKED
COMPARATOR

5

3

REFERENCE
VOLTAGE

Pin No.

1
2
3
4

ANTI­ALIASING
FILTER

6 11

Symbol

QUAL
RDDA
Vref
MUX

VP1

57 kHz
BANDPASS
(8th ORDER)

COSTAS LOOP
VARIABLE AND
FIXED DIVIDER

CLOCK
REGERATION
AND SYNC

Quality indication output
RDS data output
Reference voltage output (0.5VDDA)
Multiolex signal input

RECONSTRUCTION
FILTER

TEST LOGIC AND OUTPUT
SELECTOR SWITCH

Description

OSCILATOR
AND
DIVIDER

BIPHASE
SYMBOL
DECODER

910

QUALITY BIT
GENERATOR

DIFFERENTIAL
DECODER

1

2

15

15

1-42

5
6
7
8

9
10
11
12
13
14
15
16

VDDA
VSSA
CIN
SCOUT
MODE
TEST
VSSD
VDDD
OSCI
OSCO
T57
RDCL

+5V supply voltage for analog part
Ground for analog part (0V)
Subcarrier input to comparator
Subcarrier output of reconstruction filter
Oscllator mode / test control input
Test enable input
Ground for digital part (0V)
+5V supply voltage for digital part
Oscillator input
Oscillator output
57 kHz clock signal output
RDS clock output

TDA7404D-X (IC161) : Carradio signal processor

1.Termnal layout

28

27

26

25

24

23

22

21

20

19

18

17

1

2

3

4

5

6

7

8

9

10

11

12

2..Block diagram

MUX

ACOUTL

ACOUTR

MUTE

16

13

15

14

ACINL

KD-SX980

ACINR

DiffinL

Diffgnd

DiffinR

SE1L

SE1R

SE2L

SE2R

SE3L

SE3R

MONO+

MONO-

MIX

Input Multiplexer

Gain/Auto Zero

Mono/Beep

Mixing Stage

Beep

Supply

Vref

GND

Vcc

Volume

Loudness

Soft Mute

Digital Control I C-Bus

Tr eb l e

2

Bass

Zero cross

Mono Fader

Mono Fader

Mono Fader

Mono Fader

Mono Fader

Mono Fader

OUTLF

OUTRF

OUTLR

OUTRR

SWL

SWR

SCL
SDA

1-43

KD-SX980

VICTOR COMPANY OF JAPAN, LIMITED

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

(No.49709)

200203