jvc kd-s621 service manual

SERVICE MANUALCD RECEIVER

No.49675Jan. 2002

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

KD-S621

KD-S621

Contents

Safety precautionPreventing static electricityDisassembly methodAdjustment method

1-21-31-41-11

Flow of functional operation unit TOC readMaintenance of laser pickupReplacement of laser pickupDescription of major ICs

1-121-141-141-15 26

Area Suffix

E -------- Continental EuropeEX ------------ Central Europe

SEL

LOUD

DISP

SSM

¢

4

CD

FM

AM

SCMMODE7 8 9 10 11 12 RNDRPTMO

KD-S621

1-3

Front bracket

CD mechanismcontrol board

Damper bracket

CD mechanism ass’y

FD screwFeed motor ass’y

FD gearPickup unit

Preventing static electricity1.Grounding to prevent damage by static electricityElectrostatic 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.

3. Handling the optical pickup1. 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

Conductive material (conductive sheet) or iron plate

(caption)Anti-static wrist strap

Soldering

Attention when traverse unit is decomposed

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.

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

KD-S621

1-4

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

1.

Removing the front panel assembly (See Fig.1)

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

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

1.

Removing the front chassis assembly (See Fig.2 and 3)

Disassembly method<Main body>

Fig.1

Fig.2

Fig.3

Front panel assembly

Eject button

Tab a

Tab a

Front chassis assembly

Front chassis assembly

Heat sink Tab a

Tab a

KD-S621

1-5

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

1.

Removing the heat sink (See Fig.4)

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

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

1.

Removing the bottom cover (See Fig.5 and 6)

Fig.4

Fig.5

Fig.6

Heat sinkA A

Joints b

Joints bJoint b

Joints b

Joints b

Joint b

Bottom cover

Bottom cover

Rear panel

Rear panel

KD-S621

1-6

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

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.

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.

1.

2.

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, the bottom cover and the main board.

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

1.

Removing the CD mechanism section (See Fig.9)

Fig.7

Fig.8

Fig.9

Rear panel

B

DD

D

C

Main board

EE

CN501

CD mechanism section

FF

F

Top chassis

CC

KD-S621

1-7

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

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

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

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

1.

2.

3.

Removing the control switch board (See Fig.10 to 12)

Fig.10

Fig.11

Fig.12

G

G G

G

Rear cover

Joints c

Joints c

Front panel

Rear cover

Front panel

Control switch board

Joints c

Joints c

KD-S621

1-8

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.

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

Turn the FD gear in the direction of the arrow to move the entire pickup unit to the appropriate position where the flexible wire of the CD mechanism unit can be disconnected easily (Refer to Fig.2).

ATTENTION:

Fig.1

Fig.2

Fig.3

Fig.4

Front bracket

CD mechanismcontrol board

Shift the lock

Flexible wirePickup unit

FD gear

CD mechanism control board

Loading motor Front bracket

Front bracket Pull outwardPull outward

Flame

Damper bracket

m m

h

i

g

fI I

I

CD mechanism ass’y

F j

k

G

k

G

KD-S621

1-9

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 loading motor(See Fig.3 to 5)

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

Remove the three screws I and the damper bracket.

Raise the both sides fix arms and move the fix plates in the direction of the arrow to place the four shafts l as shown in Fig.8 and 9.

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

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.

1.

2.

3.

4.

Removing the CD mechanism ass’y(See Fig.1, 6 to 9)

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

ATTENTION:

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Rear damper bracketFix arm (R)

Damper

H

I I

Loading motor

Belt

Damper bracketCD mechanism ass’y

Flamem

m

I

I

Fix plate (L)

l

l

Rear damper bracket

Fix arm (L)

Damper

J

Fix plate(R)J

l

l

KD-S621

1-10

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

Remove the two screws K and the feed motor ass’y.1.

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), the CD mechanism ass’y and the feed motor ass’y.

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.

1.

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

2.

Removing the pickup unit(See Fig.10 and 11)

When reattaching the pickuap unit, reattach the part o of the pickup unit, then the part n of the FD screw.

ATTENTION:

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.

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.

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

1.

2.

Removing the spindle motor(See Fig.12 and 13)

Fig.10

Fig.11

Fig.12

Fig.13

Spindle motor

p p

Pickup unit

Part nFD screwFeed motor ass’y

FD gear Pickup unit

Part O

K

Nut push spring plate

Pickup mount nut

Pickup unit

FD screw

L

M

M

KD-S621

1-11

Adjustment method

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 4 (2 Speakers connection) Line out load impedance 20k Output Level Line out 2.0V (Vol. MAX)

How to connect the extension cable for adjusting

Dummy loadExclusive dummy load should be used for AM,and FM. ForFM dummy load,there is a loss of 6dB between SSG outputand antenna input.The loss of 6dB need not be considered since direct reading of figures are applied in this working standard.

Standard volume positionBalance and Bass &Treble volume : lndication"0"Loudness : OFF

Frequency BandFM 87.5MHz ~ 108.0MHzMW 522kHz ~ 1620 kHzLW 144kHz ~ 279kHz

EXTGS004-26P

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

KD-S621

1-12

Power ON Set Function to CD

Play

Jump to the first track

TOC readout

Tracking loop closed

Disc rotates

Disc inserted

YES

YES

Laser emitted

Pickup feed to the inner area

Focus search

RF signal eye-patternopens

RF signal eye-patternremains closed

"No disc"display

• When correctly focused

Focus Servo Loop ON

• When the laser diode correctly emits

Microprocessorcommands

Rough Servo Mode

CLV Servo Mode (ProgramArea)

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

• RF signal

Flow of functional operation until TOC read

• When the pickup correctly moves to the inner area of the disc

TERMINAL


FMOTC9462 "53"

FEED MOTOR+TERMINALIC581 "5"

REST SW

• When the disc correctly rotates

Tracking Servo Loop ON

Servo CLVRoughServoAccelerationAcceleration


Spindlemotor (-) IC581 "7"

0.5 Sec 0.5 Sec

KD-S621

1-13

Feed Section

Focus Section

Tracking Section

Spindle Section

Is the voltage output at IC521 pin "53" 5V or 0V?

Check the feed motor.

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

Is the wiring for IC521 (90) ~ (100) correct?

Check IC581.

Is 6V or 2V present at IC581 "5" and "6"?

Is 5V present at IC581 pin "11"?

Check the feed motor connection wiring.

Check the vicinity of IC521.

Check CD 9V and 5V.

YES

YES

YES

NONO

NO

NO

NO

YES

YES

When the lens is moving:

Check the circuits in the vicinity of IC581

pins "15" ~ "18".

Check the pickup and its connections.

NO

YES

YES

YES

Does the S-search waveform appear at

IC581 pins "17" and "18"?

Is the disk rotated?

Does the RF signal appear at TP1?

Is 4V present at IC581 pins "7" and "8" ?

Check the spindle motor and its wiring.

Is 4V present at IC521 pin "55" ?

Check the vicinity of IC581.

Check IC501 and IC521.

YES

NO

NO

NO

NO NO

YES

YES

YES

Check the circuits in the vicinity of IC501 "19" ~

"24" or the pickup

Is the RF waveform at TP1 distorted?

Proceed to the Tracking section

When the disc is rotated at first:

Check the circuit in the vicinity of IC501 pins

"2" ~ "12".

Check IC521.

Check the pickup and its connections.

YESYES

YES

Is the tracking error signal output at IC501 "12"?

Approx. 1.2 V

4V

KD-S621

1-14

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.

Replacement of laser pickup

Is RF output1.0 0.35Vp-p? Replace it.

NO

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.

Turn off the power switch and,disconnect thepower 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.

Play a disc.

Check the eye-pattern at TP1.

Finish.

KD-S621

1-15

2

1

11

12

10

15 13

14

5

4

6

38

9

7

ILM AJGND

C610u

C50.1u

C40.1u

C30.1u

AUDIO OUT

CD OUT

CTRL

ANT CTRL

EXT OUT

ANT OUT

VCC ACC

Surge Protector

BIAS TSD

C1 100u

C2 0.1u

+B

ACC

BATT.DET OUT

COMPOUT

VDD OUT

SW5VOUT

ILMOUT

C70.1u

C80.1u

R1

UNIT R: C:F

note1) TAB (header of IC)connected to GND

HA13164A(IC901) : Regulator

1.Pin layout

2.Block diagram

3.Pin function

Pin No. Symbol Function

12

3456789

101112131415

EXTANT

ACCVDDSW5VACC5VANT CTRLMEMORYBATT DET9VCTRLCD8VAJILMIGND

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 levelto ANT-CTRL.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 ONConnected 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 ONOutput 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 2 3 4 5 6 7 8 9 10 11 12 13 14 15

ME

MO

RY

Description of major ICs

KD-S621

1-16

1.Pin layout

2.Block diagram

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

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

36 PDAC35 PDBD34 PDF33 PDE32 PDER31 PDFR30 TBAL29 FBAL28 EF-27 EF OUT26 TE-25 TE OUT24 CROSS23 TE BPF22 VDET21 LD OFF20 VREF19 ENV

30 24 25 26 23 22 1 4 3

33

32

34

31

36

35

13

14

15

16

20

2

21

6 297 28 27 8 9 10 17 11 12 19

ENV CURCUITRF

DETAGCEQ

BDO

OFTR

- +

VCBA

VCBA

VCBA+-

+-

-+

-+

-+

-+

-+

-+

-+

-+

-+

- +

- +

+ -

+ -

- + - +

VCBA

KD-S621

1-17

35

36

34

33

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

3. Pin function

PD AC

FBAL

TBAL

PDFR

PDER

PDF

PDE

PD BD

TE BPF

VDET

CROSS

TE OUT

TE-

FE OUT

FE-

/NRFDET

GND

LD OFF

VREF

ENV

OFTR

C.AGC

ARF

C.ENV

C.EA

CS BDO

BDO

CS BRT

LD

LD ON

LDP

VCC

RF-

RF OUT

RF IN

PD

Pin No. Symbol I/O

I

O

I

--

--

I

O

I

I/O

O

I/O

I/O

I/O

O

I/O

O

O

--

O

O

--

O

I

O

O

I

O

I

I

I

I/O

I/O

I

I

I

I

Function

APC amp . Input terminal

APC amp . Output terminal

LD ON/OFF control terminal

Connect to GND

Power supply

RF amp . Reversing input terminal

RFamp . Output terminal

AGC input terminal

AGC loop filter connection terminal

ARF output terminal

RF detection capacity connection terminal

HPF-amp capacity connection terminal

Capacity connection terminal for RF discernment side envelope detection

BDO output terminal

Capacity connection terminal for RF discernment side envelope detection

OFTR output terminal

RFDET output terminal

Connect to GND

3TENV output terminal

VREF output terminal

APC OFF control terminal

VDET output terminal

VDET input terminal

CROSS output terminal

TE amp . Output terminal

FE amp . Reversing input terminal

FE amp . output terminal

FE amp . Reversing input terminal

F.BAL control terminal

T.BAL control terminal

I-V amp conversion resistance adjustment terminal

I-V amp conversion resistance adjustment terminal

I-V amp input terminal




AN8806SB-W

KD-S621

1-18

11

6 20

1

4

10

15

25

13

14

16

12

9

8

5

7

2

22

17

19

18

21

23

24

3

-

+ -

+

-

+ -

+

-

+ -

+

-

+ -

+IN 1

IN 2

ST BY

Vcc 1/2 Vcc 3/4

OUT 1+

OUT 1-

PWR GND1

OUT 2+

OUT 2-

PWR GND2

R.F

IN 3

IN 4

PRE GND

ON TIME CMuting &

ON Time ControlCircuit

Protective circuit

Protective circuit

Mute

circuit

Ripple

Filter

Stand by

Switch

N.C

+

+

0.22 F

2200 F 0.022 F

0.22 F

TAB

+5VST ON

+

+

+

+

47 F

0.22 F

0.22 F

22 F

+

Mute 10K

+

3.3 F

OUT 3+

OUT 3-

Low LevelMute ON

PWR GND3

OUT 4+

OUT 4-

PWR GND4

LA4743K(IC321):Power AMP

1.Block diagram

KD-S621

1-19

2.Terminal layout

3.Pin function LA4743K

TABGNDOUTRR-STBYOUTRR+VCC1/2OUTRF-GNDOUTRF+RIPPLEINRFINRRSGNDINLRINLFONTIMEOUTLF+GNDOUTLF-VCC3/4OUTLR+MUTEOUTLR-GNDNC

12345678910111213141516171819202122232425

SymbolPin No. Function

Header of ICPower GNDOutpur(-) for front RchStand by inputOutput (+) for front RchPower inputOutput (-) for rear RchPower GNDOutput (+) for rear RchRipple filterRear Rch inputFront Rch inputSignal GNDFront Lch inputRear Lch inputPower on time controlOutput (+) for rear LchPower GNDOutput (-) for rear LchPower inputOutput (+) for frontMuting control inputOutput (-) for frontPower GNDNon connection

KD-S621

1-20

VCC2

V05-

V05+

V04+

V04-

V03+

V03-

VC2+

V02-

V01+

V01-

VCC1

VIN1

VIN1G

FR

REV

FWD

S-GND

VCONT

VIN4

VIN4G

VCC-S

VREF-IN

REG-OUT

REG-IN

VIN3G

VIN3

VIN2G

VIN2

FR

28

27

26

25

24

23

22

21

20

19

18

17

16

15

FR

1

2

3

4

5

6

7

8

9

10

11

12

13

14

FR

CH 3,4,5Power supply

Out

put c

ontr

ol

CH5

CH4

CH2

CH1

CH3

22K 11K

5VREG(PNPTrThe outside puuting)

22K

22K22K

11K

11K

11K

CH1,2Power supply

LA6567H-X(IC541):CD DRIVE

1.Pin layout & blockdiagram

Leve

l shi

ftLe

vel s

hift

Leve

l shi

ftLe

vel s

hift

Thermal shutdown

Inpu

tSignal system power supply

KD-S621

1-21

2. Pin function

123456789101112131415161718192021222324252627

28

Pin no. Symbol

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 terminalCH1 Input terminal(For gain adjustment)CH2 Input terminalCH2 Input terminal(For gain adjustment)CH3 Input terminalCH3 Input terminal(For gain adjustment)Regulator terminal(Outside putting PNP base)Regulator terminal(Outside putting PNP collector)Standard voltage input terminalSignal system power supply(It is short with VCC1,VCC2)CH4 Input terminal(For gain adjustment)CH4 Input terminal5CH(VLO) Output voltage set terminalSignal system GND5CH(VLO)Signal output switch terminal(FWD),Input of logic of loading part

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

Function

VCC2V05-V05+V04+V04-V03+V03-V02+V02-V01+V01-VCC1VIN1

VIN1GVIN2

VIN2GVIN3

VIN3GREG-IN

REG-OUTVREF-INVCC-SVIN4GVIN4

VCONTS-GNDFWD

REV

LA6567H-X(2/2)

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.

KD-S621

1-22

I/O

LC72366-9A73 (IC801) : System CPU

Symbol FunctionPin No.XIN

TEST2J-BUS SIJ-BUS SO

J-BUS SCKJ-BUS I/O

SUBQ

SQCKRESETLCD SILCD SO

LCD SCKLCD CE

FM ILLUMIAM ILLUMICD ILLUMI

DIMMER OUTLM0LM1

KS2KS1KS0

DETACHK2K1K0VddSW2

CD LSI RESETMCLKMDATAMLD

SCLSDA

II----

I/O-

I/OI-OOO----OO---OOOI-II-IOOOO--OO

Crystal oscillator input portConnect to ground

CD LSI subcode data inputNo useCD LSI subcode clockMicon reset pinNo useLCD driver data outputLCD driver clock signalLCD driver chip enable portNo useNo useNo useNo useCD loading motor outputCD loading motor outputNo useNo useNo useOutput for initial setting diode matrixOutput for initial setting diode matrixOutput for initial setting diode matrixFront panel detect No useInput for initial setting diode matrixInput for initial setting diode matrix5V power supply port (+B)CD mechanism detect switch CD LSI resetCD LSI command clock signalCD LSI command data outputCD LSI command load signalNo use No useE.volume clock outputE.volume data output

12345678910111213141516171819202122232425262728293031323334353637383940

1. Pin layout

2. Pin function

24 ~ 1

41 ~ 64

25

40

~

80

65~

No useNo useNo useNo use

KD-S621

1-23

I/OPort Name FunctionPin No.

41424344454647484950515253545556575859

606162636465666768697071727374757677787980

CD ONRELAYBLKCKBEEPSW4SW1SW3REST

FLOCKTLOCK

CD SENSESTATUS

P.SAVES2SD/ST

REMOCONJ BUS INT

BANDMONO

IFRQ/AGC

MUTELEVEL

S.METERKEY CHANGE

KEY2KEY1KEY0

P.SAVE1SENSE

FM IF COUNTNCNCVdd

AM OSCFM OSC

VSSNCE0

TEST1XOUT

--I-IIIIIIIIIII-O-O

OII-IIIII-I---II--O-O

No useCD mechanism detect switchCD mechanism detect switchCD mechanism detect switchCD pickup rest positionFocus lock signal output Active:LowTracking lock signal output Active :lowCD LSI sense signalCD LDI status signalpower save 2:+B detectStation detection,Stereo signal input H:SDRemocon inputNo useFM/AM band selectionFM mono selectionDuring FM auto search,IF request output H after SD detected. During AMsuto search,AGC outputMuting switchLevel meter inputS meter inputControl to GNDKey 2 input portKey 1 input portKey 0 input portPower save 1,ACC power detectionVoltage sensor portNo useFM frequency detectingNo useNo use5V power supply (+B)No useFM limited signal inputGround port for power supplyNo useError signal output port for PLLTest port for LSI, To connect ground 4.5MHz crystal oscillator output

LC72366-9A73(2/2)

CD 8V supply on5V power contorlSub-code/block/clock signal output

KD-S621

1-24

12345678910111213141516

S1S2S3S4S5S6S7S8S9

S10S11S12S13S14S15S16

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

48474645444342414039383736353433

S48S47S46S45S44S43S42S41S40S39S38S37S36S35S34S33

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

S17

S18

S19

S20

S21

S22

S23

S24

S25

S26

S27

S28

S29

S30

S31

S32

DI

CL

CE

OS

CV

ssV

DD

2V

DD

1IN

HV

DD

CO

M3

CO

M2

CO

M1

S52

S51

S50

S49

LC75823W (IC601) : LCD driver1. Pin Layout & Symbol

2. Pin Function

Pin No.1 to 52

53 to 55

56

57

58

59

6061

62

63

64

I/OO

O

--

I

I

I

--I/O

I

Segment output pins used to display data transferredby serial data input.Common driver output pins. The frame frequency is givenby : t0=(fosc/384)Hz.Power supply connection. Provide a voltage of between4.5 and 6.0V.Display turning off input pin.INT="L" (Vss) ----- off (S1 to S52, COM1 to COM3="L"INT="H" (VDD)----- onSerial data can be transferred in display off mode.Used for applying the LCD drive 2/3 bias voltageexternally.Must be connected to VDD2 when a 1/2 bias drive schemeis used.Used for applying the LCD drive 1/3 bias voltageexternally.Must be connected to VDD1 when a 1/2 bias drive schemeis used.Power supply connection. Connect to GND.Oscillator connection.An oscillator circuit is formed by connecting an externalresistor and capacitor at this pin.Serial data CE : Chip enableinterface connectionto the controller. CL : Sync clock

DI : Transfer data

SymbolS1 to S52

COM1 to COM3

VDD

INH

VDD1

VDD2

VssOSC

CE

CL

DI

Function

KD-S621

1-25

12345678910111213141516

32313029282726252423222120191817

SDAGND

OUTLROUTLF

TLB2LB1LIVLILL

QSLIDL

MUTEICLIMDIBLIAL

SCLVCCOUTRROUTRFTRB2RB1RIVRILRQSRIDRVrefICRCAPIBRIAR

CD-CH

TAPETUNER

POWER

SUPPLY

SOURCE

SELECTOR

VOLUME 1+20 to -31 dBLOUDNESS

LEFT

BASSLEFT

+15 dB

TREBLELEFT

+12 dB

BASSRIGHT+15 dB

TREBLERIGHT+12 dB

MUTEFUNCTION

ZERO CROSSDETECTOR

VOLUME 20 to 55 dBBALANCE

FENDER REAR

VOLUME 20 to 55 dBBALANCE

FENDER FRONT

HC BUSREC

VOLUME 20 to -55dBBALANCE

FENDER FRONT

VOLUME 20 to -55dBBALANCE

FENDER REAR

VOLUME 1+20 to -31 dBLOUDNESS

RIGHT

LOGIC

21312

19

16151311

22201817

14

23 25 24 26 27 28

30

29

1

32

3

4

10 8 9 7 6 5 12

1.Pin layout

3.Pin functions

2.Block diagram

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

PinNo.

PinNo.

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

SDA

GND

OUTLR

OUTLF

TL

B2L

B1L

IVL

ILL

QSL

IDL

MUTE

ICL

IMO

IBL

IAL

Serial data input/output.

Ground.

output left rear.

output left front.

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

Bass control capacitor left channel.

Input volume 1. left control part.

Input loudness. left control part.

Output source selector. left channel.

Not used

Not used

Input C left source.

Not used

Input B left source.

Input A left source.

I/O

-

O

O

I

-

-

I

I

O

-

-

I

-

I

I

Symbol I/O Symbol I/O

Input A right source.

Input B right source.

Electronic filtering for supply.

Input C right source.

Reference voltage (0.5Vcc)

Not used

Output source selector right channel.

Input loudness right channel.

Input volume 1. right control part.

Bass control capacitor right channel

Bass control capacitor right channel oroutput to an external equalizer.Treble control capacitor right channel orinput from an external equalizer.

Output right front.

Output right rear.

Supply voltage.

Serial clock input.

I

I

-

I

-

-

O

I

I

-

O

I

O

O

-

I

IAR

IBR

CAP

ICR

Vref

IDR

QSR

ILR

IVR

B1R

B2R

TR

OUTRF

OUTRR

Vcc

SCL

Functions Functions

TEA6320T-X (IC301) : E.volume

KD-S621

1-26

8

7

6

54

3

2

1 V+

B OUTPUT

B INPUT

B INPUT

A INPUT

A INPUT

A OUTPUT

-

V- +

+ -

NJM4565M-WE (IC151) : Ope. amp

A B C D E F G

1

2

3

4

5

2-1

KD-S621

REST SWITCH

LOADINGMOTOR

FEEDMOTOR

SPINDLEMOTOR

SW1 SW4

PICK UP

REST

LOADING

FEED

SPINDLE

A,B,C LD,MDE,F,TRACKINGFOCUS

SW1 SW4

CN

501

IC541SERVO

BTLDRIVER

IC561DSP

&DAC

IC501RF AMP

IC151CDLPF

LOADING

LOADINGSPINDLEFEEDTRACKINGFOCUS

VA,VB,VCVE,VF,MD,LD

TRV,TVD,ECM,ECS,KICK,TRD,FOD

CD,SENSECD,RESETSTATUSSUBQ,SQCKBLKCK,TLOCKFLOCK,MLDMDATA,MCLK

TBALFBALFE,TETRCRSVDETLDONARFBDOOFTRRFDETRFENV

OUT LOUT R

CD LCHCD RCH

CJ601

IC602REMOCON

S601 S620KEY MATRIX

KEY0KEY1

KEY2 REMOCON

IC601LCDDRIVER

LCD1

CN

801

TU701FM/AMTUNER

IC801MICON

IC301E.VOL

FM/AMFM.OSCIFCAGCS.METERSD/ST

MONOEQ

IC321POWER

AMP

IC901REGULATOR

SPKBATTERY

EACH BLOCK

TU.LCHTU.RCH

OUT LFOUT RFOUT LROUT RR

LRORRO

CD.LCHCD.RCH

CJ302LINE OUT

LFRFLRRR

LM0LM1

COM1COM2COM3S1 S48

LCD_CLKLCD_SOLCD_LE

SDASCL

CJ701ANT

Block diagram

Tuner Signal

CD signal

Front signal

Rear signal

Parts are safety assurance parts.When replacing those parts makesure to use the specified one.

Main amp section

Standard schematic diagrams

HA B C D E F G

1

2

3

4

5

KD-S621KD-S621

2-2

R828R814

R815

R816

C803

C804

CJ701

R832

R834

R831

D804

C802

Q902

D903

C801

IC901

R907

R827

R811

R704

R823

R702

R808

R826R825

C328

C331

C330

C329

R323

R807

D321

C405

C305

C404

C304

R401

R301

Q321

R307

R308

R408

R407

Q792

R333

IC801

R812

R840

R841R842

C321

C327

R321

D332

D333

R322

C902

Q432

Q332

R845

R336

R433

L701

CN801

R201

R101R703

TU701

R436

R434

IC321

D802

D805

D803

C334

C335

C332

F1

C333

C433

C432

C435

C434

C427

R902C916

IC301

Q861

Q791

R791

Q732

Q731

C731

C732

R732 R733

R731

R701

C901

D901

R334

R829

D801

C807

D90

2

C90

4

D86

7

R86

2

D82

2

C71

7

R82

2

X80

1

D90

4

C72

0

R83

3

R83

5

C86

2

R79

6

D79

1

Q70

2

C71

8

R90

6

R91

0

C71

2

R79

8

R91

1

R90

9

R80

3

R90

4

R90

5

R90

1

R90

3

C90

3

C31

9

R81

7

L801

R80

1

C90

6C90

9

C91

0

CJ3

21

R83

0

C71

3

R81

8

C71

6

C91

1

C90

8

C90

5

C71

5

Q90

3

C91

4

C91

5

C40

3

C40

6C

306

C30

3

C40

2C

302

C31

2

C31

1

C40

7

C40

8

C30

9

C30

7

C30

8

R40

2R

302

C31

0

R30

4

R30

3

R40

4

R40

3

R79

9

R79

3

R72

5C

725

R79

4

C32

0

D79

2

R79

5

R84

3

R79

7

R84

4

*C71

4

L901

R80

4

D86

6

C70

9

C71

0

D86

8

R80

5

C20

1

C10

1

R20

2R

102

D86

9

C70

2

R90

8

C42

0C

419

D82

4

Q70

1

D82

3

D82

1

D82

5

D82

6

D82

7

D82

8C82

1

C82

2

R70

5

C90

7

C82

3

Q79

3

R79

2

C73

3 R73

4

D73

1

C70

3

C70

1

D70

1D

702

R70

8

C71

1

D86

1

C86

1

R86

1

D81

0

R83

6

R80

9

R81

0

R81

3

47k47k

47k

47k

22p

33p

QNB0100-002

22k

22k

4.7k

1SS254-T2

0.01

2SC2412K/R/-X

1SS254-T2

220/6.3

HA13164A

39k

47k

3.3k

47k

1k

47k

47k

47/16

0.022

0.022

4.7/25

1k

47k

1SS254-T2

0.033

0.033

0.22

0.22

22k

22k

DTC114EKA-X

27k

27k

27k

27k

2SA1037AK/RS/-X

1k

LC72366-9A73

3.3k

47k

47k

47k

100/16

4.7/25

47k

1SS355-X

1SS355-X

470

0.01

2SD1781K/QR/-X

2SD1781K/QR/-X

0

2.2k

1k

4.7u

VMC0334-001

1k

QAU0257-001

2.2k

100

LA4743K

1SS254-T2

1SS254-T2

1SS254-T2

1/50

1/50

0.1

QMFZ047-150-T

0.1

0.1

0.1

1/50

1/50

22/16

1k2.2/50

TEA6320T-X

DTA114EKA-X

2SB1197K/QR/-X

10k

2SC2412K/R/-X

2SC2412K/R/-X

2.2/50

0.001

1k 10k

1.5k

1k

2200/16

1N5401-TU-15

100

47k

1SS254-T2

10/16

SB

10-0

3A3-

T2

22/1

6

1SS

355-

X

470

UD

ZS

6.2B

-X

220p

2.2k

QA

X04

06-0

01Z

CR

S03

-W

220/

10

4.7k

4.7k

0.08

2

15

1SS

355-

X

DT

C14

4EK

A-X

0.02

2

4.7k

47k

0.1/

50

22k

47k

27k

3.3k

100K

4.7k

9.1k

4.7k

22/1

6

220p

4.7k 4.

7u

10K

0.1

100/

10

0.01

QN

N01

70-0

01

22k

47k

220/

10

100/

10

22/1

6

2SA

1037

AK

/RS

/-X

0.1

2.2

0.18

0.00

56

0.00

560.18

0.00

820.

0082

47/1

6

100/

10

4.7/

25

4.7/

25

100/

10

4.7/

25

4.7/

25

2.2k

2.2k

0.01

47k

47k

47k

47k

47k

10k

0.01

2.2k

220p

1SS

355-

X

15

0

10

0

QQ

R07

03-0

01

3.3k

1SS

355-

X

1SS

355-

X

3.3k

1/50

1/50

1SS

355-

X

0.1/

50

68k

220p

220p

UD

ZS

6.2B

-X

DT

C11

4EK

A-X

UD

ZS

6.2B

-X

UD

ZS

6.2B

-X

UD

ZS

6.2B

-X

UD

ZS

6.2B

-X

UD

ZS

6.2B

-X

UD

ZS

6.2B

-X

0.1

0.1

10k

0.01

0.1

DT

C11

4EK

A-X

1k220/

10

470

MT

ZJ1

0B-T

2

0.1/

50

47/1

0

1SS

254-

T2

1SS

254-

T2

8.2k

0.01

MT

ZJ4

.7B

-T2

220/

6.3

470

1SS

355-

X

47k

10k

100k47

k

RF+

IFC

SW5V

GND

TU.RCH

RR+

VDD

CD.RESET

LR+

SW3

LCD.CE

TU.LCH

CD8V

SDA

DETACH

R5V

LF+

DETACH

CD.RCH

RF-

RR-

LR-

LF-

9V

SCL

ILL_10V

EO

FM.OSC

CD.LCH9V

LRO

RRO

CD8V

MUTE

MCLK

MDATA

MCLK

MLD

CD.SENSE

SW2

SQCK

SUBQ

STATUSCD.RESET

RESTSW1

SW2

LM1

LM0

SW4

R5V

TLOCK

MDATA

FLOCK

MLD

BLKCK

REMOCON

LCD.SCK

LCD.SO

KEY0

KEY1KEY2

SD

A

SC

L

AG

CS

W1

SW

3

RE

ST

SQ

CK

ILL_

10V

LCD

.CE

LCD

.SC

KC

D.S

EN

SE

LM0

ST

AT

US

LM1

EO

S.M

ET

ER

IFC

SU

BQ

SW

4

LCD

.SO

SW

5V

TU

.RC

H

FM

/AM

LF+

SD

/ST

CD

.RC

H

KE

Y2

CD

.LC

H

MO

NO

LRO

LR+

LF-

ILL_

10V

LR-

RF

-

MU

TE

SD

/ST

RR

+

RR

O

RR

-

TU

.LC

H

RE

MO

CO

N

KE

Y1

9V

S.M

ET

ER

BLK

CK

MO

NO

TLO

CK

FLO

CK

FM

/AM

AG

C

KE

Y0

FM

.OS

C

RF

+

CD signal

A B C D E F G

1

2

3

4

5

2-3

KD-S621

CD servo & control section

IC501

C152

R152

R560

C253

L501

R151

RF

X561

R251

R153

ARF

IC541

C503

IC151

R155

L562

IC561

C513

C527

R550

VREF

Q541

R517

R516

R515

R514

R512

R513

C521 C520

C519

C523

C522

R509 R508

R506

C563

D551

R573

C155

C255

C252 R255

C573

C574

R253

R252

R154 R156

R256R254

C153

FE TE

CN501

C543

C524

C525

C541

R56

9

R58

0

R58

1

R54

9R

503

C25

6C53

0

R51

9

C55

2

R57

7

C55

1

L561

R57

0

Q50

1

C25

1

R50

7

R57

6

C15

1

C57

9

C57

6

R50

2

C50

2

R50

1

C50

4

C50

5C

506

R50

4C

507

C50

8

C50

9

C51

0

C51

1

C51

2

C51

6

C51

4

C51

8

R51

1

R51

0

R50

5

C56

4

C56

5

C56

8

C56

6

R57

9

C57

1

R57

5

R57

1

R57

4 C57

2

C56

7

C57

7C

561

R55

1

C52

8

C52

9

R51

8

R56

8

R56

7

R56

4

R56

3

R56

2

R56

1

C50

1

C56

2

C51

5

R54

1R

542

R54

4

R54

5

R54

6

R54

7

R54

3

R54

8

C54

2

AN8806SB-W

4.7/25

12k

100( 1/8W)

150p

4.7U

18k

TP

QAX0714-001Z

18k

27k

TP

LA6557H-X

68p

NJM4565M-WE

1.5k

4.7U

MN6627482WA

330p

0.022

6.8k

TP

2SA1706/ST/-T

12k

12k

12k

12k

56k

56k

560p 47p

0.047

0.022

0.022

22k 100k

22k

0.001

DSK10C-T1

33k

47/6.3

47/6.3

4.7/251.5k

220/6.3

0.01

27k

12k

22k 22k

22k22k

150pBTBT

TP TP

QGB2027M1-26S

GNDGND

GND

0.033

0.001

0.001

22/16

1k

220k

0

20k

1k

100/

1068p

1M

0.01

100k

220/

10

4.7U

1k

2SA

1706

/ST

/-T

0.00

1

8.2k

0

0.00

1

0.00

1

0.00

15

22 100/

10

22

100/

10

0.01

3p 3.9k

0.1

1/50

100p

0.02

7

0.00

47

0.01

100/

10

0.1

0.22

270k

150k

220k

0.27

0.1 0.01

0.47

1k

0.01

220

33k

220

100/

10

100/

10

0.1

0.01

8.2k

0.00

18

0.00

12

BT

BT

GN

DG

ND

IC2

8.2k

GN

D

1k 1k 1k 1k 1k 1k

0.01

0.01

0.01

620

4.3k

3.3k

12k

56k

150k

30k

4.3k

0.00

47

CD8V

ARF

VC

MD

VC

VB

VA

VE

VF

LD

GND

RFENV

FOCUS-

FOCUS+

MD

LD

REST

VREF

FOCUS-

FOCUS+TRACKING+

TRACKING-

RESTSPINDLE+

SPINDLE-

FEED-

TLOCK

SW4

FEED+

SW1

LOADING+

LOADING-

SW4

OFTR

SW3

SW1

SW2

VCC

VE

VB

VA

VF

VC

VR

VCC

LM0

TRACKING+

FOD

VF

TRD

KICK

ECS

ECM

TVDTRV

TRACKING-

FBALTBAL

SPINDLE+

FE

TE

RFENV

VDET

TRCRS

RFDET

BDO

LDON

SPINDLE-

FEED-

SW1

VCC

SQCK

SW2

LOADING+

FEED+

LOADING-

MCLK

VREF

SW3

SW2

VE

VB

VA

MD

LD

REST

GND

MDATA

SUBQ

CD.RESET

LM1

SW4

CD.LCH

MLD

CD.SENSE

SW3

STATUS

CD.RCH

FLOCK

BLKCK

CD

.SE

NS

E

VD

ET

CD

.RE

SE

T

TV

DT

RA

CK

ING

+

TR

D

LDO

N

AR

F

TR

AC

KIN

G-

BD

O

TB

AL

TR

CR

S

LM0

KIC

K

FO

CU

S+

FO

D

TE

LM1

FE

FO

CU

S-

FB

AL

FE

ED

-E

CS

TR

V

ST

AT

US

EC

M

SU

BQ

SQ

CK

TLO

CK

MLD

MD

AT

A

MC

LK

BLK

CK

OF

TR

RF

DE

T

FE

ED

+

SP

IND

LE+

SP

IND

LE-

LOA

DIN

G+

LOA

DIN

G-

FLO

CK

HA B C D E F G

1

2

3

4

5

KD-S621KD-S621

2-4

LCD & key control section

D608

R658

R653

C603

D642

D603

D604

D605 D617

PL601 PL602

D616

D620

IC602

R661

C612C611

D615D601

D614

D613D612D602

D611

D610

D609

D607

D619

D618

IC601

LCD1

D606

D643

CJ601

S601

S620

R652

R654R655

R656

R617

S603

S608

S614

S602S604S605S606

S609S610S611S612S613

S615S616S617S618S619

R614 R613R615R616

R606R607R611 R610 R609 R608

R601R602R603R604R605

R651

S607

R612

D641D645

D644

R63

2

R63

4

R66

2

R64

3

R64

2

R64

1

R63

5

R63

3

R63

6

R63

8

R64

0

R63

7

R63

9

R65

7

C60

1

C60

2

R64

4

R64

5

R63

1

3

180k

10k

10/6.3

1SS355-X

LOUD

SEL

DISP AM

CD

POWER

RPM6938-SV4

10k

4.7/6.30.012

FMVOL+

EJECT

SCMMODEVOL-

6

5

4

2

DOWN

UP

LC75823W

QLD0210-002

1

1SS355-X

VMC0335-001

2.2k

10k

10k

10k

1.5k 680 5609101.2k

6805601.5k 1.2k 910 680

6805606809101.2k

2.2k

680

UDZS5.1B-X

UDZS5.1B-X

820

510

470

510

510

270

510

820

1.5k

270

270

1.5k

270

51k

0.02

2

680P820

820

820

UD

ZS

6.2B

-X

R5V

ILL_10V

COM1

S32

S31

REMOCON

S30

S29

S28

S27

S26

COM2

S25

S24S23

S22

S21

S20

S19

S18

S17

LCD.SCK

LCD.CE

KEY1KEY2

KEY0

LCD.SD

GND

COM3

LCD.CE

KEY1

KEY0

LCD.SCK

LCD.SD

KEY2

CO

M1

S1

S2

S3

S4

CO

M2

CO

M3 S

33

S1

S2

S3

S4

S5

S6

S7

S8

S9

S10

S11

S12

S13

S14

S15

S16

S17

S5

S6

S7

S8

S9

S10

S11

S18

S19

S20

S21

S22

S23

S24

S25

S26

S27

S28

S29

S30

S31

S32

S33

S34

S35

S36

S37

S38

S39

S40

S41

S42

S43

S44

S45

S46

S47

S48

S12

S13

S14

S15

S16

S34

S35S36

S37

S38

S39

S40

S41

S42

S43

S44

S45

S46

S47

S48

KD-S621

3-2

Exploded view of general assembly and parts listBlock No. M MM1

Mai

n bo

ard

Fron

t

boa

rd

41

9

13 12

35

38

5

39

4

8

48

8

4847

8

46

42

44

40

43

45

2

6

1

6

24

7

7

103

916

1115

14

31

27

28

23

22

2126

29

19

31

30

36

32

33

34

6

25

20

17

18

KD-S621

3-3

Item Parts number Parts name AreaA

Parts list (General assembly)

Q'ty Description

Block No. M1MM

1 ------------ CD MECHA 1 TN-CCD1001Z

2 FSJC1029-404 TOP CHASSIS 1

3 FSMH3001-202 SIDE PANEL 1

4 FSKM3011-002 BOTTOM COVER 1

5 FSMA3004-203 INSULATOR 1

6 QYSDST2604Z SCREW 3 CHASSIS+MECHA BKT

7 FSKZ4005-001 SCREW 2 CHASSIS+SIDE PANEL

8 QYSDST2604Z SCREW 3 CHASSIS+REAR BKT

9 QYSDST2606Z SCREW 2 CHASSIS+MAIN PWB

10 FSKZ4005-001 SCREW 1 SIDE PANEL+IC BKT

11 FSJC2013-013 FRONT CHASSIS 1

12 FSKS3010-001 LOCK LEVER 1

13 FSKW4005-003 TORSION SPRING 1 FOR LOCK LEVEL

14 FSXP3026-002 RLS KNOB 1

15 FSKW3002-015 COMP.SPRING 1

16 FSPK3009-002 BLIND 1

17 GE10037-001A FRONT PANEL 1

18 GE30300-008A FINDER ASSY 1

19 GE20119-001A PRESET BUTTON 1

20 GE30304-001A POWER BUTTON 1

21 GE30305-001A EJECT BUTTON 1

22 GE20131-001A D FUNC BUTTON 1 FM/CD/AM

23 GE30307-001A SND FTN BUTTON 1

24 GE20130-001A PUSH BUTTON 1

25 GE20118-001A +/- BUTTON 1

26 GE20120-001A UP/DOWN BUTTON 1

27 GE30306-001A DETACH BUTTON 1

28 FSKW3002-012 COMP. SPRING 1 FOR DETACH BUTTON

29 GE30117-001A LIGHT LENS 1

30 GE10038-001A REAR COVER 1

31 VKZ4777-001 MINI SCREW 4 FRONT+REAR

32 QLD0210-002 LCD 1

33 GE30302-002A LCD CASE 1

34 FSJK3035-001 LCD LENS 1

35 FSKS3022-003 LENS CASE 1

36 FSYH4078-002 LIGHTING SHEET 1

38 QNZ0442-001 RUBBER CONNE 1

39 GE30348-002A NAME PLATE 1

40 QMFZ047-150-T FUSEA 1

41 VMA4652-001SS EARTH PLATE 1

42 FSKM3010-020 REAR BRACKET 1

43 FSKL4024-001 IC BRACKET 1

44 GE40104-001B HEAT SINK 1

45 GE40103-001A REGULATOR BKT 1

46 QYSDST2606Z SCREW 1 FOR ANT

47 QYSDSF3006Z SCREW 1 LINE OUT

48 QYSDST2606Z SCREW 3 16P & TR BRACK

KD-S621

3-4

101

10223

102

231

101

101

101

49

2062

68

67

61

72

110

62

66

65

6410

11

8

9

1002

14

15

13

1217

16

90

70

71

57

91

4

3

7

6

19

18

105

4843

50

41

42103

49

49

56

107

131

36

107

107

38

32

33

130

106 29108

106

135

104

107

40

63

39

51

52

109

132

86

113

113134

80

11792

8479

88

93

22

22

89

62

8182

116102

101108

100

133

57

d

d

c

a

d

a

b

cb

TN-CCD1001Z-136J

CD mechanism assembly and parts listBlock No. M MMBGrease

G-31SAG-31SA(Bottom side)RX-405

KD-S621

3-5


Parts list (CD mechanism)

Q'ty Description

Block No. MBMM

1 30310101T FRAME 1

2 30310103T DANPER PIN 2

3 30310107T UPPER PLATE 1

4 30310108T SEL STOP PLATE 1

5 30310142T SEL ARM (L)L 1

6 30310143T SEL ARM (R)L 1

7 30310145T S ARM SPRING(L) 2

8 30310112T TRIG LEVER 1

9 30310155T TRIG PL(Z) 1

10 30310115T TRIG PL SPRING 1

11 30310116T TRIG ARM 1

12 30310134T FIX ARM (L)B 1

13 30310159T FIX ARM (R)Z 1

14 30310150T FIX PL (L)Z 1

15 30310156T FIX PL (R) Z 1

16 30310138T LDG GR (6)B 1

17 30310122T LDG GEAR (6)SP 1

18 30310148T S.L ARM(N) 1

19 30310125T S.L ARM SPRING 1

20 30310149T REAR DAM BKT(Z) 1

22 30310151T HUNG UP SP (FZ) 2

23 30310129T HUNG UP SP (R) 2

29 30300510T PU GEAR(B) 1

32 30310544T F.M.BASE(Z) 1

33 30310547T FD GR BLK(Z) 1

36 30310546T PU GUIDE(Z) 1

38 30310533T THRUST SPR(M) 1

39 30310548T PU M NUT(Z) 1

40 30310512T NUT PUSH SPR PL 1

41 30310558T CLP ARM(Z) 1

42 30310514T CLP ARM SPRING 1

43 30310552T CLAMPER(Z) 1

48 30310557T CLAMPER PLATE(Z 1

49 30310524T DAMPER (J) 3

50 30310525T CLP ARM SPR (L) 1

51 30310545T F SCREW GUIDE(Z 1

52 30310556T PU G.SP PLT(Z) 1

56 64180405T DET SW 1 ESE11SF4

57 OPTIMA-720L1 C.D PICK (CAR) 1

61 30311035T FPC HOLDER(Z) 1

62 19501403T WIRE CLAMPER 3

63 30311037T PICK UP FPC(Z) 1

64 30311036T CONNECT.PCB(Z-J 1

65 30311038T WIRE (5P-Z) 1

66 30311039T WIRE (LD-Z) 1

67 30311040T WIRE (FD-Z) 1

68 30311041T WIRE (RS-Z) 1

70 64180402T DET SWITCH 2 ESE22MH1

KD-S621

3-6

Item Parts number Parts name AreaA Q'ty Description

71 64180403T DET SWITCH 2 ESE22MH3

72 68150232T CONNECTOR 1 TKC-W26X-C1

79 30311105T SOPPORT PLATE 1

80 30311138T GR MT BLK(N) 1

81 30311109T LDG GEAR (2) 1

82 30311110T LDG GEAR (3) 1

84 30311112T LDG GEAR (5) 1

86 30311136T LDG ROLLER 2

88 30311118T L.P SPRING (L) 1

89 30311119T L.P SPRING (R) 1

90 30311123T SW PCB 1

91 30311124T SW ACTUATOR 1

92 30311129T LDG BELT 1

93 30311140T FRONT BRKT (J) 1

100 9C0620503T C B TAP SCREW 2 M2X5

101 9C2020401T C SCREW TS.G 5 M2X4

102 9C4320403T C B TAP SCREW 4 M2X4

103 9C0117223T SCREW 2 M1.7X2.2

104 9C0917703T C TAP SCREW S3 1 M1.7X7

105 9C0320201T C TAP SCREW S3 1 M2X2

106 9C4920013T C TAP SCREW S3 2 M2X10

107 9C4920603T C TAP SCREW B3 4 M2X6

108 9P0220031T TAMS SCREW 2 M2X3

109 9C0314203T C TAP SCREW 1 M1.4X2

110 9C0420253 C TAP SCREW 1 M2X2.5

113 9W0330276 NW BLUE 2 2.9X5X0.3

116 9W0725030T LUMILAR W 1 2.3X9.8X0.25

117 9W0640030T WASHER 1 1.4X3.2X0.4

130 303105310T FEED MO ASSY 1

131 303105311T SPINDLE MO ASSY 1

132 303105312T FEED SCREW ASSY 1

133 303111301T LDG MOTOR ASSY 1

134 303111302T RDG RLR SFT ASY 1

135 303105502T T.T.BASE ASSY 1

Parts list (CD mechanism) Block No. MBMM

KD-S621

3-7

Electrical parts list (Main board) Block No. 01

Item Parts number Parts name AreaRemarksA Item Parts number Parts name AreaRemarksA

C 101 QERF1HM-105Z E CAPACITOR 1.0MF 20% 50V

C 151 NCB31HK-102X C CAPACITOR

C 152 QEKJ1EM-475Z E CAPACITOR 4.7MF 20% 25V

C 153 NDC31HJ-151X C CAPACITOR

C 155 QEKJ0JM-476Z E CAPACITOR 47MF 20% 6.3V



C 252 QERF1EM-475Z E CAPACITOR 4.7MF 20% 25V


C 255 QERF0JM-476Z E CAPACITOR 47MF 20% 6.3V

C 256 QERF1AM-107Z E CAPACITOR 100MF 20% 10V


C 303 NCB21CK-184X C CAPACITOR






C 309 QEKJ1AM-107Z E CAPACITOR 100MF 20% 10V



C 312 QEKJ1CM-476Z E CAPACITOR 47MF 20% 16V

C 319 NCS31HJ-221X C CAPACITOR


C 321 QERF1CM-107Z E CAPACITOR 100MF 20% 16V






C 332 NCB31EK-104X C CAPACITOR























C 506 NDC31HJ-3R0X C CAPACITOR


C 508 QEKJ1HM-105Z E CAPACITOR 1.0MF 20% 50V









C 518 NCB31AK-224X C CAPACITOR






















C 566 NCB31AK-474X C CAPACITOR











C 702 QEKJ1HM-104Z E CAPACITOR .10MF 20% 50V

C 703 QERF1HM-104Z E CAPACITOR .10MF 20% 50V




C 712 QEKJ1HM-104Z E CAPACITOR .10MF 20% 50V





















C 901 QEZ0337-228 E CAPACITOR 2200MF



KD-S621

3-8

Item Parts number Parts name AreaRemarksA












CJ321 QNN0170-001 PIN JACK (REEL)

CJ701 QNB0100-002 ANT TERMINAL

CN501 QGB2027M1-26S CONNECTOR

CN801 VMC0334-001 CONNECTOR

CN901 QNZ0002-001 CONNECTOR

D 321 1SS254-T2 SI DIODE

D 332 1SS355-X DIODE


D 551 DSK10C-T1 DIODE



D 731 MTZJ10B-T2 Z DIODE





D 821 UDZS6.2B-X SI DIODE








D 861 MTZJ4.7B-T2 Z DIODE





D 901 1N5401-TU-15 DIODE

D 902 SB10-03A3-T2 SB DIODE


D 904 CRS03-W SB DIODE

IC151 NJM4565M-WE IC

IC301 TEA6320T-X IC

IC321 LA4743K IC

IC501 AN8806SB-W IC

IC541 LA6567H-X IC

IC561 MN6627482WA IC

IC801 LC72366-9A73 IC

IC901 HA13164A IC

L 501 QQL231K-4R7Y INDUCTOR





L 901 QQR0703-001 CHOKE COIL

Q 321 DTC114EKA-X TRANSISTOR

Q 332 2SD1781K/QR/-X TRANSISTOR

Q 432 2SD1781K/QR/-X TRANSISTOR

Q 501 2SA1706/ST/-T TRANSISTOR

Q 541 2SA1706/ST/-T TRANSISTOR



Q 731 2SC1623/5-6/-X TRANSISTOR


Q 791 2SB1197K/QR/-X TRANSISTOR

Q 792 2SA812/5-6/-X TRANSISTOR


Q 861 DTA114EKA-X DIGI TRANSISTOR


Q 903 2SA812/5-6/-X TRANSISTOR

R 101 NRSA63J-471X MG RESISTOR







R 156 NRS181J-223X MG RESISTOR
















































KD-S621

3-9





























R 576 NRSA63J-0R0X MG RESISTOR
































































R 902 QRZ0125-102X C RESISTOR 1.0K 1W










TU701 QAU0257-001 TUNER

X 561 QAX0714-001Z C RESONATOR

X 801 QAX0406-001Z CRYSTAL



KD-S621

3-10




C 603 NBE20JM-106X TS E CAP SVB20J

CJ601 VMC0335-001 CONNECTOR

D 601 LNJ308G81/1-3/X LED VOL+ G LED

D 602 LNJ308G81/1-3/X LED VOL- G LED

D 603 LNJ308G81/1-3/X LED LOUD G LED

D 604 LNJ308G81/1-3/X LED SEL G LED

D 605 LNJ308G81/1-3/X LED DISP G LED

D 606 LNJ308G81/1-3/X LED 1 G LED

D 607 LNJ308G81/1-3/X LED 2 G LED

D 608 LNJ308G81/1-3/X LED 3 G LED

D 609 LNJ308G81/1-3/X LED 4 G LED

D 610 LNJ308G81/1-3/X LED 5 G LED

D 611 LNJ308G81/1-3/X LED 6 G LED

D 612 LNJ308G81/1-3/X LED MODE G LED

D 613 SML-310VT/JK/-X LED SCM R LED

D 614 LNJ308G81/1-3/X LED EJECT G LED

D 615 LNJ308G81/1-3/X LED FM G LED

D 616 LNJ308G81/1-3/X LED CD G LED

D 617 LNJ308G81/1-3/X LED AM G LED

D 618 LNJ308G81/1-3/X LED UP G LED

D 619 LNJ308G81/1-3/X LED DOWN G LED

D 620 SML-310LT/MN/-X LED POWER R LED

D 641 UDZS5.1B-X Z DIODE




IC601 LC75823W IC

PL601 QLL0056-001 PILOT LAMP

PL602 QLL0056-001 PILOT LAMP









































S 601 NSW0066-001X TACT SWITCH POWER

S 602 NSW0066-001X TACT SWITCH VOL-

S 603 NSW0066-001X TACT SWITCH VOL+

S 604 NSW0066-001X TACT SWITCH LOUD

S 605 NSW0066-001X TACT SWITCH DISP

S 606 NSW0066-001X TACT SWITCH 1

S 607 NSW0066-001X TACT SWITCH SELECT





S 612 NSW0066-001X TACT SWITCH EJECT

S 613 NSW0066-001X TACT SWITCH UP


S 615 NSW0066-001X TACT SWITCH MODE

S 616 NSW0066-001X TACT SWITCH SCM

S 617 NSW0066-001X TACT SWITCH DOWN

S 618 NSW0066-001X TACT SWITCH AM

S 619 NSW0066-001X TACT SWITCH FM

S 620 NSW0066-001X TACT SWITCH CD

Electrical parts list (Front board) Block No. 02


KD-S621

3-12

Packing materials and accessories parts listBlock No. M MM3

Block No. M MM5

P1A1~A5

P1A1

P8

P5

P7

P6

P8

A13

A6

A15A14

KIT : A7~A11P2

P3

P4

A12

KD-S621

3-13


Parts list (Packing)

Q'ty Description

Block No. M3MM

P 1 FSPG4002-001 POLY BAG 2 FOR INST BOOK

P 2 QPA00801205 POLY BAG 1 FOR SCREW KIT

P 3 QPA01003003 POLY BAG 1 FOR HARD CASE

P 4 FSYH4036-068 SHEET 1

P 5 QPA01003003 POLY BAG 1 FOR CORD ASSY

P 6 QPC03004315P POLY BAG 1 FOR SET

P 7 GE30407-017A CARTON 1

P 8 GE10036-001A EPS CUSHION 2


Parts list (Accessories)

Q'ty Description

Block No. M5MM

A 1 GET0066-001A INST BOOK 1

A 2 GET0066-002A INST BOOK E1

A 3 GET0066-003A INSTALL MANUAL 1

A 4 GET0066-004A INSTALL MANUAL E1

A 5 BT-54013-2 W.CARD 1

A 6 LV40978-001A CAUTION SHEET 1

A 7 VKZ4027-202 PLUG NUT 1

A 8 VKH4871-001SS MOUNT BOLT 1

A 9 VKZ4328-001 LOCK NUT 1

A 10 WNS5000Z WASHER 1

A 11 FSKL4010-002 HOOK 2

A 12 FSJB3001-30C HARD CASE 1

A 13 FSKM2004-202 MOUNTING SLEEVE 1

A 14 QAM0089-001 16P CORD ASSY 1

A 15 FSJD2034-001 TRIM PLATE 1

KIT KDGS717K-SCREW1 SCREW PARTS KIT 1 A7~A11

ENG, GER, FRE, DUT

SPA, ITA, SWE, FIN

SPA, ITA, SWE, FIN

ENG, GER, FRE, DUT

KD-S621

VICTOR COMPANY OF JAPAN, LIMITEDMOBILE ELECTRONICS DIVISIONPERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.49675)200201

jvc kd-s621 service manual

Documents

optical pickup laser

replacement optical

traverse unit optical

laser power

complex unit

antistatic pin

cd substrate

card wire