JVC KD-S580 Service manual

SERVICE MANUAL

CD RECEIVER

KD-S580

KD-S580

TRACK

DIRECT

ACCESS

MO

RND

RPT

MODE

FM

CD

SSM

AM

SCM

Area Suffix

J ------ Northern America

The new CD mechanism is installed in this set.
How to distinguish the new CD mechanism is displayed in a nameplate central upper row as "J2".

Contents

Safety precaution
Preventing static electricity
Disassembly method
Adjustment method

1-2
1-3
1-5
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

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

No.49666B

Aug. 2002

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

Preventing static electricity

KD-S580

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.)

(conductive sheet) or iron plate

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-S580

< MEMO >

1-4

Disassembly

<Main body>

Removing the front panel assembly

(See Fig.1)

1.

Push the release bottom in the lower right part of the
front panel and remove the front panel assembly in
the direction of the arrow.

KD-S580

Front panel assembly

Release bottom

Fig.1

Removing the front chassis assembly

(See Fig.2, 3)

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

1.

Release the two joints a and the two joints b on
both sides of the body using a screwdriver, and
remove the front chassis assembly forward.

Front chassis assembly

Joint b

Front chassis assembly

Joint a

Fig.2

Joint a

Removing the heat sink (See Fig.4)

1.

Remove the screw A and the two screws B on the
left side of the body.

B

Joint b

A

Heat sink

Fig.3

B

Fig.4

1-5

KD-S580

Removing the bottom cover

(See Fig.5, 6)

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

1.

Tur n over the body and release the two joints c the
two joints d and the joint e .

CAUTION:

Do not damage the board when
releasing the joint e using a screwdriver.
(See Fig.5, 6)

Joint c

Joint e

Bottom cover

Bottom cover

Fig.5

Joint d

Joint d

Removing the rear panel (See Fig.7)

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

1.

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

Removing the main board assembly

(See Fig.8)

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

C

F

Joint c

Rear panel

D C

Fig.7

Joint e

Fig.6

E

D
C

D

F

1.

Remove the two screws F attaching the main
board assembly. Disconnect connector CN501 and
remove the main board assembly.

1-6

Main board assemblyCN501

Fig.8

KD-S580

Removing the CD mechanism assembly

(See Fig.9)

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

1.

Remove the three screws G .

Removing The LCD key operation board

(See Fig.10~12)

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

H

CD mechanism assembly

G

G

Fig.9

G

Front chassis

H

1.

Remove the four screws H on the back of the front
panel assembly.

2.

Release the twelve joints f .

3.

Pull out the LCD key operation board.

Joint f

H

Front panel

Rear cover

LCD operation board

Joint f

Fig.10

Joint f

Fig.11

H

Joint f

Joint f

Fig.12

1-7

KD-S580

< CD mechanism section >

Removing the top cover

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.1 and 2)

(See Fig.3 to 5)

Top cover

A

A

Joints a

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.

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:

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.

Unsolder the short-circuit point after
reassembling.

A

Fig.1

Joints a

Top cover

Fig.2

DET switch

B

1-8

Flexible wire

Frame

Connector board

Fig.5

B

Connector board

Joints b

Flexible wire

Short-circuit

Fig.3

Fig.4

Pickup

Short-circuit point

(Soldering)

Pickup

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-S580

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)

Fig.7

Suspension spring (L)

Shafts

Damper

Damper

Damper

Frame

Fig.8

1-9

KD-S580

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-S580

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

Fig.16

Feed rack

Joint f

Feed sw. holder

Fig.17

1-11

KD-S580

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-S580

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)

Link plate spring

Top plate

Link plate

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)

Fig.22

Hook u

Joint t

Joint t

Select lock arm

Fig.23

Link plate spring

Select arm (L)

Fig.24

Joint r

Fig.25

Joint s

Select
lock arm

Point x

1-13

KD-S580

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'

Joint y

Link plate

Joint z

Joint s

Fig.21

Select lock arm

Select lock arm

Joint b'

Select arm (L)

Select lock arm

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 joint 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'

Joint y

Joint y

Fig.22

Select arm (L)

Joint b'

Select
lock arm

Joint z

Fig.25

1-14

Link plate

Fig.26

KD-S580

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

Part 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-S580

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.
Pull out the loading gear(3).(see Fig.31)

1.

Pull out the feed gear.

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).

Feed gear

Change plate
rivet assembly

Shafts

KD-S580

Slot j'

Slide plate

Loading plate assembly

Joint k'

Slot j'

Fig.33

Joint l'

Loading gear (4)

Loading gear plate
rivet assembly

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’.

Loading plate assembly

Loading plate spring

Joint k'

Slide hook

Slide plate

Slot j'

E-washer

Washer

Loading gear (2)

Loading plate spring

Adjusting washer

Change plate
rivet assembly

E-washer

Loading gear (1)

Loading gear (2)

Loading gear (1)

Change gear (2)

Fig.34

Loading gear (2)

Change lock lever

Loading gear (4)

Slot j'

Chassis rivet assembly

Chassis rivet assembly

Loading gear plate rivet assembly

Fig.36Fig.35

1-17

KD-S580

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-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

EXTSH002-22P

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

1

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.

CN501

Extension cable

EXTSH002-22P

1-19

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

1-20

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.

NONO

KD-S580

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

NO

YES

NO

Check IC581.

Check the circuits in

the vicinity of IC581

pins "15" ~ "18".

YES

Check the pickup and

its connections.

Is 4V present at IC581

pins "7" and "8" ?

YES

Check the spindle motor

and its wiring.

NO

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.

1-21

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.

1-22

Play a disc.

Check the eye-pattern at TP1.

Finish.

Description of major ICs

HA13164A (IC901) : Regulator

1.Pin layout

123456789101112131415

KD-S580

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)

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.

1-23

KD-S580

AN8806SB-W (IC501) : RF & 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

728

29

27

910 17

8

11

19

12

­+

- +

­+

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

1-24

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

1-25

KD-S580

LA4743K(IC321):Power AMP

1.Block diagram

IN 1

TAB

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

-

+

+

-

1-26

ON TIME C

22 F

Muting &

16

+

ON Time Control

Circuit

PWR GND4

24