JVC KSFX-621 Service manual

49825200303

KS-FX621

SERVICE MANUAL

CASSETTE RECEIVER

KS-FX621

11

RPT

1097

12

8

MO

RND

S

C

M

MODE

Area Suffix

U ------ Other Areas

TABLE OF CONTENTS

1 Safety precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2

2 Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3

3 Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-17

4 Description of major ICs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-21

No.49825

2003/03

KS-FX621

SECTION 1

Safety precaution

CAUTION

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.

1-2 (No.49825)

SECTION 2

Disassembly method

2.1 Main body

2.1.1 Removing the front panel assembly (See Fig.1)

(1) Press the release button and remove the front panel as-

sembly.

2.1.2 Removing the bottom cover (See Fig.2)

• Prior to performing the following procedure, remove the front

panel assembly. (1) Turn the body upside down. (2) Insert a screwdriver under the joints to release the two

joints a on the left si de, the two joints b on the right side and the joint c on the back of the body, then remove the bottom cover from the body.

CAUTION:

When releasing the joint c using a screwdriver, do not damage the main board.

Front panel assembly

Joint a

Fig.1

Bottom cover

KS-FX621

Release button

Joint

b

2.1.3 Removing the front chassis (See Fig.3)

• Prior to performing the following procedure, remove the front

panel assembly and bottom cover. (1) Remove the screw A on each side of the body. (2) Release the two joints d and the two joints e on the sides,

then remove the front chassis toward the front.

Joint a

Joint c

Fig.2

Joint d

Joint e

A

Joint d Joint e

Front chassis

Fig.3

Joint b

(No.49825)1-3

KS-FX621

2.1.4 Removing the heat sink (See Fig.4)

• Prior to performing the following procedure, remove the front

panel assembly. (1) Remove the two scre ws B and two screws C attaching the

heat sink on the left side of the body, and remove the heat sink.

2.1.5 Removing the rear panel (See Fig.5)

• Prior to performing the following procedure, remove the front

panel assembly and bottom cover. (1) Remove the two screws D, three screws E and three

screws F attaching the rear panel on the back of the body.

CB C

Heat sink

Fig.4

2.1.6 Removing the main board (See Fig.6)

• Prior to performing the following procedure, remove the front

panel assembly, bottom cover, front chassis, heat sink and rear panel. (1) Remove the two screws G attaching the main board on the

top chassis.

(2) Disconnect the connectors CP701 on the main board from

the cassette mechanism assembly.

E

G

D

Rear panel

EFF

D

Fig.5

Main board assembly

G

1-4 (No.49825)

CP701

Fig.6

2.1.7 Removing the cassette mechanism assembly

(See Fig.7)

• Prior to performing the following procedure, remove the front

panel assembly, bottom cover, front chassis, heat sink, rear panel and main board. (1) Remove the four screws H attaching the cassette mecha-

nism assembly from the top chassis.

2.1.8 Removing the mecha bo ar d

(See Fig.8)

• Prior to performing the following procedure, remove the front

panel assembly, bottom cover, front chassis, heat sink, rear panel, main board and cassette mechanism assembly. (1) Disconnect the wire from the connectors CN402 and

CN403 on the mecha board.

(2) Remove the screw J attaching the mecha board.

KS-FX621

Cassette mechanism assembly

H

H H

Top chassis

Fig.7

CN402

J

2.1.9 Removing the front board

(See Figs.9 to 11)

• Prior to performing the following procedure, remove the front

panel assembly. (1) Remove the four screws L attaching the rear cover on the

back of the front panel assembly. (See fig.9)

(2) Release the eleven joints f, the front panel and the rear

cover become separate. (See fig.10)

(3) Remove the front board from the front panel assembly.

(See fig.11)

K

K K

Fig.9

CN401

Front panel assembly

Joint h

LCD & Key control board

Fig.8

Joint h

Fig.10

CN403

Joint h

Rear cover

Fig.11

(No.49825)1-5

KS-FX621

r

2.2 CD Mechanism Assembly

REFERENCE:

Prior to performing the following procedures, turn the mode gear on the bottom of the body until the respective part comes to the EJECT position (Refer to Fig.1).

2.2.1 Removing the cassette guide (See Fig.2)

(1) Turn the mode gear to set to RVS play or subsequent

mode.

(2) Remove the casse tte guide from the main chassis while re-

leasing each two joint tabs a in the direction of the arrow.

Mode gea

Fig.1

Cassette guide

2.2.2 Removing the load arm (See Fig.3)

(1) Remove the E-washer attaching the load arm. (2) Move the load arm in the direction of the arrow and release

the joint b on the cassette catch.

Load arm

E-washer

Tab a

Fig.2

Joint b

Fig.3

1-6 (No.49825)

2.2.3 Removing the cassette hanger assembly / cassette holder

y

(See Fig.4 to 7)

(1) Check the mode is set to EJECT. Push down the front part

of the cassette holder and move in the directi on of the arrow to release the joint c.

(2) Move the rear part of the cassette hanger assembly in the

direction of the arrow to release it from the two joint bosses d.

(3) Release the holder stabilizer spring from the hooks e and

f, then pull out from the cassette hanger assembly.

(4) Bring up the rear side of the cassette hanger assembly to

release the joint g and h.

(5) Pull out the cassette catch from the cassette hanger as-

sembly.

Cassette holder assembly

KS-FX621

Cassette hanger assembly

Cassette stabilizer spring

Hook f

Hook e

Fig.5

Side bracket

Joints c

Cassette holder assembly

Fig.4

Boss d

Cassette hanger assembly

Boss d

assette holder

ssembly

Cassette hanger assembl

Hook g

Hook h

Fig.6

Cassette hanger assembly

Cassette catch

Cassette holder assembly

Fig.7

(No.49825)1-7

KS-FX621

2.2.4 Removing the side bracket assembly (See Fig.8 to 10)

(1) Remove the screw A attaching the side bracket assembly. (2) Detach the front side of the side bracket assembly upward

and pull out forward to release the joint i and j in the rear.

CAUTION:

When reassembling, make sure that the boss k of the main chassis is set in the notch of the load rack under the side bracket assembly. Do not reattach the load rack on the boss k.

CAUTION:

After reattaching the side bracket assembly, confirm operation.

Side bracket assembly

Joint i

Side bracket assembly

Joint i

Joint j

Load rack

A

Joint j

Boss k

Fig.9

Side bracket assembly

Fig.8

Boss k

Load rack

1-8 (No.49825)

Fig.10

2.2.5 Removing the pinch arm (F) assembly

r

(See Fig.11 and 12)

(1) Remove the polywasher and pull out the pinch arm (F) as-

sembly.

(2) Remove the compulsion spring.

KS-FX621

Pinch arm (F) assembly

Polywasher

Compulsion spring

Polywasher

Pinch arm (R) assembly

2.2.6 Removing the pinch arm (R) assembly

(See Fig.11 and 13)

(1) Remove the polywasher and pull out the pinch arm (R) as-

sembly.

Pinch arm (R) assembly

Pinch arm (F) assembly

Fig.11

Polywashe

Fig.12

Joint l

Slide chassis

assembly

Fig.14

Fig.13

2.2.7 Removing the slide chassis assembly

(See Fig.14 and 15)

REFERENCE:

It is not necessary to remove the head and the tape guide. (1) Move the slide chassis assembly in the direction of the ar-

row to release the two joints l and remove from the main chassis.

(2) Remove the rack link.

CAUTION:

When reassembling, first reattach the rack link, and next fit the boss m and hook n of the slide chassis assembly to the hole of the main chassis, and engage the two joints l.

Head

Tape guide

Boss m

Rack link

Hook

n

Fig.15

(No.49825)1-9

KS-FX621

2.2.8 Removing the head / tape guide (See Fig.16 and 17)

REFERENCE:

It is not necessary to remove the slide chassis assembly. (1) Remove the band attaching the wire to the head. (2) Remove the two screws B, the head and the head support

spring. (3) Remove the pinch arm spring from the tape guide. (4) Remove the tape guide and the pinch spring arm.

CAUTION:

When reattaching the pinch arm spring, set both end of it to the pinch spring arm ( remarked o).

CAUTION:

When reattaching the head, set the wires into the groove of the tape guide (Fig.16).

Slide chassis assembly

B

Pinch arm spring

Head

Head support spring

Tape guide

o

B

Pinch spring arm

o

Head

Fig.16

2.2.9 Removing the flywheel assembly (F) & (R) (See Fig.18 and 19)

REFERENCE:

It is not necessary to remove the slide chassis assembly. (1) Remove the belt at the bottom. (2) Remove the two polywashers on the upper side. (3) Pull out each flywheel assembly downward.

Flywheel assembly (F)

Tape guide

Belt

Slid chassis assembly

Fig.17

Polywasher

Flywheel assembly (F)

Flywheel assembly (R)

1-10 (No.49825)

Flywheel assembly (R)

Fig.19

Fig.18

2.2.10 Disassembling the flywheel assembly (F )

r

(See Fig.20 and 21)

(1) Push and turn counterclockwise the spring holder (F) to re-

lease the three joints p on the bottom of the flywheel.

(2) The spring holder (F), the TU spring and the friction gear

play come off.

(3) Remove the polywasher and felt.

KS-FX621

Polywasher Spring holder (F)

TU spring

Flywheel assembly (F)

Joints p

Joint p

Fig.20

2.2.11 Disassembling the flywheel assembly (R)

(See Fig.20 and 22)

(1) Push and turn clockwise the spring holder (R) to release

the three joints q on the bottom of the flywheel.

(2) The spring holder (R), the FF spring and the friction gear

FF come off.

(3) Remove the polywasher and the felt.

Polywasher

Spring holder (R)

FF spring

Flywheel assembly (R)

Joints q

Joint q

Friction gear play

Felt

Flywheel assembly (F)

Fig.21

FFC pad

C

Joint

Friction gear FF

Felt

Flywheel assembly (R)

Fig.22

2.2.12 Removing the reel board

(See Fig.23 and 24)

(1) Remove the two screws C attaching the reel board. (2) Move the reel board in the direction of the arrow to release

the joint r.

(3) Unsolder the wires if necessary.

CAUTION:

When reattaching, confirm operation of the MODE switch and the ST-BY switch. The mode position between EJECT and ST-BY is optimum for reattaching. Connect the card wire extending from the reel board to the FFC pad before reattaching the reel board.

C

Reel board

Fig.23

FFC pad

CT-1 switch

MODE switch

ST-BY switch

Soldering

Fig.24

(No.49825)1-11

KS-FX621

2.2.13 Removing the gear base arm / gear base link assembly (See Fig.25 to 27)

(1) Move the gear base arm in the direction of the arrow. (2) Insert a slotted screwdriver to the gear base spring under

the gear base arm, and release the gear base arm upward from the boss on the gear base assembly.

(3) Remove the gear base arm from the main chassis while re-

leasing the two joints s.

(4) Move the gear base link assemby in the direction of the ar-

row to release the two joints t.

REFERENCE:

When reattaching the gear base arm, make sure that the boss on the gear base assembly is inside the gear base spring.

Joint t

Gear base arm

Joints s

Hook u

FFC pad

Hook u

2.2.14 Removing the FFC pad (See Fig.27 and 29)

(1) Push each joint hook u of the FFC pad and remove toward

the bottom.

Gear base link assembly

Joint t

Gear base spring

Gear base link assembly

Fig.25

Gear base arm

Screwdriver

Fig.26

Gear base arm

1-12 (No.49825)

FFC pad

Fig.27

KS-FX621

r

2.2.15 Removing the mode gear

(See Fig.28 and 31)

(1) Remove the polywasher on the bottom and pull out the

mode gear.

2.2.16 Removing the mode switch actuator

(See Fig.28, 29 and 31)

(1) Pull out the mode switch actuator at the bottom.

REFERENCE:

When reattaching the mode switch actuator to the main chassis, make sure to set on the shaft and insert v into the slot w.

2.2.17 Removing the direction link / direction plate

(See Fig.29 to 31)

(1) Remove the polywasher attaching the direction link. (2) Bring up the direction link to release the three joints x, y

and z at a time.

(3) Move the direction plate in the direction of the arrow to re-

lease the two joints a'.

REFERENCE:

When reattaching the direction plate, engage the two joints a' and move in the direction of the arrow (Refer to Fig.30).

REFERENCE:

When reattaching the direction link, move the direction plate in the direction of the arrow and engage the three join t x, y and

z at a time (Refer to Fig.31).

2.2.18 Removing the mode rack assembly

(See Fig.29 and 30)

(1) Move the mode rack assembly in the direction of the arrow

to release the two joints b' and the joint c'.

REFERENCE:

When reattaching, set the two b' Eon the bottom of the mode rack assembly into the slots of the main chassis and move in the direction of the arrow (See Fig.30).

Mode switch actuator

Direction plate

Direction link

Fig.28

Slot w

Mode rack assembly

Joints a'

Joint z

Direction link

Polywasher

Joint y

Fig.29

Joint x

Direction plate Mode rack assembly

Joint b'

Mode gear

Polywashe

Joint b'

Joint c'

Joints a'

Fig.30

Direction link

Mode switch actuator

Polywasher

v

Mode gea

Direction plate

Mode rack assembly

Fig.31

(No.49825)1-13

KS-FX621

2.2.19 Removing the gear base assembly / take up gear / reflector gear (See Fig.32 to 34)

(1) Push in the pin d' of the gear base assembly on the upper

side of the body and move the reflector gear toward the bottom, then pull out.

(2) Remove the polywasher on the bottom and pull out the

take up gear.

(3) Move the gear base assembly in the direction of the arrow

to release it from the two slots e' of the main chassis.

REFERENCE:

The parts are damaged when removed. Please replace with new ones.

Slot e'

Gear base assembly

Pin d'

Slot e'

Fig.32

2.2.20 Removing the reel driver / reel spindle (See Fig.34)

(1) Draw out the reel driver from the shaft on the main chassis

and remove the reel driver spring and the reel spindle respectively.

CAUTION:

The reel driver is damaged when removed. Please replace with a new one.

Polywasher

Reflector gear

Reel driver

Reel driver spring

Reel spindle

Take up gear

Fig.33

Reel driver

Reel driver spring

Reel spindle

Gear base assembly

1-14 (No.49825)

Main chassis

Reflector gear

Slots e

Take up gear

Polywasher

Fig.34

2.2.21 Removing the side bracket assembl y

(See Fig.35 to 39)

(1) Remove the eject cam plate spring. (2) Push the joint f' through the slot to remove the load rack

downward.

(3) Move the eject cam limiter in the direction of the arrow to

release it from the boss g'of the side brack et assembly and from the two joints h'.

(4) Move the eject cam plate in the direction of the arrow to re-

lease the joint i'.

CAUTION:

When reassembling, confirm operation of each part before reattaching the eject cam plate spring.

Joint f'

Side bracket

assembly

Boss g'

Eject cam limiter

Joint h'

Eject cam plate

Fig.37

Side bracket assembly

Boss g'

KS-FX621

Joint h'

Eject cam plate spring

Side bracket assembly

Boss g'

Joint h'

Fig.35

Eject cam limiter

Joint f'

Load rack

Joint h'

Eject cam plate

Joint i'

Fig.38

Side bracket assembly

Joint i’

Fig.39

Fig.36

Load rack

(No.49825)1-15

KS-FX621

r

2.2.22 Removing the main motor assembly / sub motor assembly (See Fig.40 to 42)

(1) Remove the belt at the bottom. (2) Remove the polywasher and pull out the mode gear. (3) Pull out the reduction gear (B). (4) Remove the polywasher and pull out the reduction gear

(A).

(5) Remove the two screws D attaching the main motor as-

sembly.

(6) Remove the two scre ws E attaching the sub motor assem-

bly.

(7) Unsolder the wires on the reel board if necessary.

CAUTION:

When reassembling, adjust the length of the wires extending from the sub motor asswmbly by attaching them to the side of the sub motor assembly with the wires extending from the main motor assembly using a spacer.

Belt

Reduction gear (B)

Mode gear

Polywasher

Fig.40

Polywasher

D

E

Main motor assembly

Reduction gear (A)

Polywashe

Sub motor assembly

E

Spacer

Main motor assembly

Reduction gear (A)

D

Main motor assembly

Sub motor assembly

Fig.41

1-16 (No.49825)

Sub motor assembly

Fig.42

Spacer

SECTION 3

Adjustment

3.1 Adjustment method

Test instruments reqired for adjustment Standard volume position

1. Digital oscilloscoe(100MHz)

2.Frequency counter meter

3.Electric voltmeter

4.Wow & flutter meter

5.Test tapes

VT724.......................for DOLBY level measurement

VT739............For playback frequency measurement

VT712....For wow flutter & tape speed measurement

VT703.....................For head azimuth measurement

6.Torque gauge...................Cassette type for CTG-N

(Mechanism adjustment)

Measuring conditions(Amplifier section)

Balance and Bass, Treble volume, Fader : Center(Indication"0") Loudness, Dolby NR, Sound, Cruise : Off Volume position is about 2V at speaker output with following conditions, Playback the test tape VT721.

AM mode 999kHz/62dB, INT/400Hz, 30%

modulation signal on recieving.

FM mono mode 97.9MHz/66dB, INT/400Hz, 22.5kHz

deviation pilot off mono

FM stereo mode 1kHz, 67.5kHz dev.pilot 7.5kHz dev Output level 0dB (1 V,50 /open terminal)

KS-FX621

Power supply voltage.............. DC14.4V(11V to 16V allowance)

Load impedance............ 4 (4 to 8 allowance)

Line out level/Impedance..............1.0V/20k load (250 nWb/m)

Frequency band

Band

FM

AM

87.5 MHz to 108.0MHz 522 kHz to 1620 kHz

MW

LW

144 kHz to 279 kHz

(No.49825)1-17

KS-FX621

Information for using a car audio service jig

1. We're advancing efforts to make our extension cords common for all car audio products. Please use this type of extension cord as follows.

2. As a U-shape type top cover is employed, this type of extension cord is needed to check operation of the mechanism assembly after disassembly.

3. Extension cord : EXTKSRT002-18P ( 18 pin extension cord ) For connection between mechanism assembly and main board.

4. Check for mechanism driving section such as motor ,etc.

D

i

sassembl

1. Remove the front panel assembly.

2. Remove the bottom cover.

3. Remove the front chassis.

4. Remove the rear panel.

5. Remove the heat sink.

6. Remove the main board.

7. Reattach the heat sink with two screw B. (Refer to Disassembly method.)

8. Install the front chassis and front panel assmbly.

9. Confirm that current is being carried by connecting an extension cord jig. Note Available to connect to the CJ701 connector when installing the front panel.

y met

hod

CAUTION : Be sure to attach a heat sink on the power amplifier IC of a main board when supplying the power. If voltage is applied without attaching the heat sink, the power amplifier IC will be destroyed by heat.

To Cassette mechanism

Extension cord EXTKSRT002-18P

To Main board

EXTKSRT002-18P

Cassette mechanism

1-18 (No.49825)

Front panel assembly

Main board

Arrangement of adjusting & test points

A

Cassette mechanism (Surface)

Motor assembly

Tape speed adjust

KS-FX621

Azimuth screw

(Forward)

Playback head

Head section view

Azimuth screw B

(Reverse)

Azimuth screw B

(Reverse)

Playback head

Azimuth screw A

(Forward)

(No.49825)1-19

KS-FX621

Item

Head

1. azimuth adjustment

Conditions

Test tape: SCC-1659 VT703(10kHz)

Adjustment and Confirmation methods

Head height adjustment Adjust the azimuth directly. When you adjust the height using a mirror tape, remove the cassette housing from the mechanism chassis. After installing the cassette housing, perform the azimuth adjustment.

Load the SCC-1659 mirror tape. Adjust with

1. height adjustment screw A and azimuth adjustment screw B so that line A of the mirror tape runs in the center between Lch and Rch in the reverse play mode.

After switching from REV to FWD then to

2. REV, check that the head position set in procedure 1 is not changed. (If the position has shifted, adjust again and check.)

Adjust with azimuth adjustment screw B so

3. that line B of the mirror tape runs in the center between Lch and Rch in the forward play mode.

Head azimuth adjustment Load VT724 (1kHz) and play it back in

1. the reverse play mode. Set the Rch output level to max.

Load VT703 (10kHz) and play it back in

2. the forward play mode. Adjust the Rch and Lch output levels to max, with azimuth adjustment screw B. In this case, the phase difference should be within 45 .

Engage the reverse mode and adjust the

3. output level to max, with azimuth adjustment screw C. (The phase difference should be 45 or more.)

When switching between forward and

4. reverse modes, the difference between channels should be within 3dB. (Between FWD L and R, REV L and R.)

S.Values Adjust

A line

Head shield

The head is at low position during.

B line

Head shield

The head is at High position during REV.

Output level: Maximum

PBHead

FWD Adj B

REV Adj C

(0 ) (45 )

HEIGHT Adj A

phase

Tape speed

2. and wow flutter confirmation

Play back

3. frequency response confiramation

1-20 (No.49825)

When VT721 (315Hz) is played back,

5. the level difference between channels should be within 1.5dB.

Test tape: VT712 (3kHz)

Test tape: VT724 (1kHz) VT739 (63Hz / 1kHz / 10kHz)

The tuner section is of an adjustment-freedesign. In case the tuner is in trouble, replace the tuner pack.

Check to see if the reading of the F, counter /

1. wow flutter meter is within 3015Hz to 3045Hz

(FWD/ REV), and less than 0.35% (JIS RMS). In case of out of specification, adjust the

2. motor with a built-in volume resistor.

Play test tape VT724, and set the volume

1. position at 2V.

Play test tape VT739 and confirm.

2. 1kHz / 10kHz: -1 3dB, 1kHz / 63Hz: 0 3dB,

When 10kHz is out of specification, it will be

3. necessary to read adjust the azimuth.

Tape speed: 3015Hz to 3045Hz Wow flutter: less than 0.35%

Speaker out 1kHz / 63Hz : 0 3db 1kHz / 10kHz : -1 3db

Built-in volume resistor

4.1 CXA2559Q (IC401) : Head amp.

•Pin layout

KS-FX621

SECTION 4

Description of major ICs

• Block diagram

1

10

31 32 33 34 35 36 37 38 39 40

45k

30

7k/12k

300k

7k/12k

30

21

F2

30k

F1

29

-

+

-

28

100k

X1

100k

27

T2

T1

26

TAPE EQ

FWD/RVS

LPF

25

BIAS

MUTE

Vcc

+

-

F3

+

24

-

23

24dB

22

MS MODE

MS ON/

OFF

DET

21

20 19 18 17 16 15 14 13 12 11

1

2

3

4

5

6

7

8

9

10

(No.49825)1-21

KS-FX621

c

Y

4.2 HD74HC126P (IC801) : Changer control

• Pin arrangement • Pin function

11C

21A

31Y

14

13

12

Vc

4C

4A

Input Output

CA Y

LX Z HL L HH H

• Block diagram

42C

52A

62Y

7GND

11

10

4Y

3C

9

3A

8

3Y

( TOP VIEW )

1A

1

1C

2A

2

2C

3A

3C

4A

4C

3

4

1-22 (No.49825)

4.3 KIA7810PI (IC902) : Regulator

•Pin layout

1 2 3

• Block diagram

KS-FX621

1 INPUT

R4 R18

Q12

R5

Z1

R6

R7

R1

Q1

Q13

R10 R3

Q8

Q10

Q5

Q7

R8

R2

Q6

Q2

R15

Q14

C1

R14

Q4

Q9

R16

R9

Q15

Q3

Q11

R13

R21

R17

Q16

R12

R19

Q17

R11

3 OUTPUT

R20

2 GND

(No.49825)1-23

KS-FX621

4.4 LC72366-9B41 (IC701) : Micon

• Pin layout

65 ~ 80

64 ~ 41

40 ~ 25

1 ~ 24

• Pin function Pin No. Symbol I/O Function

1 XIN I 4.5MHz crystal oscillation 2 TEST2 - Connect to ground 3 J-BUS SI I J-BUS signal data input (to 74HC126) 4 J-BUS SO O J-BUS signal data output (to 74HC126) 5 J-BUS SCK O J-BUS output clock signal (to 74HC126) 6 J-BUS I/O I/O J-BUS I/O control ie. "H" = "O", "L" = "I" (to 74HC126) 7NC-No use 8 LCD SO O LCD driver data output (to LC75823E pin 64)

9 LCD SCK O LCD driver clock signal (to LC75823E pin 63) 10 LCD CE O LCD driver chip enable port (to LC75823E pin 62) 11 NC - No use 12 SDA O E. volume data output (to TEA632 0T pin 1) 13 SCL O E. volume clock output (to TEA6320T pin 32) 14 NC - No use 15 TUNER_ILL O Connect to LED (of TUNER button ) 16 TAPE_ILL O Connect to LED (of TAPE button) 17 CD_ILL O Connect to LED (of CD button) 18 DIMMER O Connect to display lamp supply

19~24 NC - No use

25 KS1 O Output for initial setting diode matrix 26 KS0 O Output for initial setting diode matrix 27 K3 I Input for initial setting diode matrix 28 K2 I Input for initial setting diode matrix 29 K1 I Input for initial setting diode matrix 30 K0 I Input for initial setting diode matrix 31 Vdd - 5V supply 32 TEST I Change key input to test mode 33 FF/REW O Change MS IC input sensitivity (L at FF/REW) 34 SEEK/STOP O IF count REQ and output [H] at seek.and scan 35 MONO O Output [H] at FM forced monoral mode 36 R/T O Output of mode radio / tape (Radio:H.Tape:L) 37 NC - No use 38 POWER ON - Output [H] at power on 39 ACC O Output [H] during [ACC DET] is [H] 40 IFC CONT O IF count control output (To tuner cct) 41 MOTER O Main motor output (Drive:H Stop:L) 42 SUB MOTER+ O Sub motor output (sub motor loading ) 43 SUB MOTER- O Sub motor output (sub motor eject) 44 BEEP O Beep on (output f :2.25KHz)

1-24 (No.49825)

Pin No. Symbol I/O Function

45 TAPE IN I Detect cassette in SW. [H] at cassette in 46 STAND BY I Detect stand by SW position. 47 REEL I Pulse input 48 MODE I Detect mode position. 49 F/R O Output F/R ( Forward:L Reverse:H) 50 MS IN I Detect MS. [H] at no music. 51 SD/ST I Station detect and FM stereo signal input [H] at SD 52 DETACH I Front panel detect 53 JOG-0 I Rotary encoder input 0 54 JOG-1 I Rotary encoder input 1 55 JBUS INT I J-BUS interrupt (to 74HC126) 56 REMOCON I Remocon input 57 BAND O FM/AM band selection ("H" : FM, "L" : AM) 58 DOLBY O Output DOLBY mode ("H" : DOLBY on) 59 IFRQ/AGC O During FM auto search IF request output 'H' after SD detected.

During AM auto search AGC output ("H" : auto search) 60 MUTE O Muting switch 61 P.SAVE2 I Power save 2 : +B detect 62 LEVEL I Level meter input 63 S.METER I S meter input 64 KEY2 I Key 2 data input (AD) 65 KEY1 I Key 1 data input (AD) 66 KEY0 I Key 0 data input (AD) 67 P.SAVE1 I Power save 1, ACC power detect 68 SNS I Voltage sense 69 NC 70 FM IF COUNT I FM IF counter data input 71 NC 72 NC 73 Vdd - 5V supply 74 NC 75 FM OSC I FM input frequency 76 Vss - Ground 77 NC 78 EO O PLL error output signa l 79 TEST1 - Connect to ground 80 XOUT O 4.5MHz crystal oscillation

KS-FX621

(No.49825)1-25

KS-FX621

4.5 LA4743K (IC301) : Power amp.

• 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

-

+

-

ON TIME C

1-26 (No.49825)

22 F

Muting &

16

+

ON Time Control

Circuit

PWR GND4

24

4.6 PT6523LQ (IC651) : LCD driver

•Pin layout

48 ~ 33

49

KS-FX621

32

• Block diagram

64

1 ~ 16

17

COMMON

DRIVER

CLOCK

GENERATOR

ADDRESS

DETECTOR

SEGMENT DRIVER & LATCH

SHIFT REGISTER

• Piin function Pin No. Pin Name I/O Description

1~ 52 SG1 ~ SG52 O Segment Output Pins

53~55 COM1 ~ COM3 O Common Driver Output Pins

56 VDD - Power Supply 57 INH

I Display OFF Control Input Pin

When this pin is "Low", the Display is forcibly turned OFF. (SG1 to SG52, COM1 to COM3 are set to "LOW"). (See Note 1) When this pin is set to "High", the Displa is ON.

58 VDD1 I Used for the 2/3 Bias Voltage when the Bias Voltages are provied externally. Connect to VDD2

when 1/2 Bias is used.

59 VDD2 I Used for 1/3 Bi as Voltage when the Bias Voltages are provided externally. Connect to VDD1

when 1/2 Bias is used. 60 VSS - Ground Pin. 61 OSC I/O Oscillation Input /Outout Pin 62 CE I Chip Enable Pin 63 CLK I Synchronization Clock 64 DI I Transfer Data Pin

Note 1:

When INH

= "LOW" : Serial data trensfers can be performed when the display is forcibly OFF.

(No.49825)1-27

KS-FX621

4.7 RPM6938-SV4 (IC652) : Remote sensor

• Pin diagram

1 2 3

• Block diagram

AGC

AMP

I/V conversion

PD

magnetic shield

BPF

fo trimming circuit

Detector

4.8 LB1641 (IC402) : DC motor driver

• Pin layout • Truth table

GND

OUT1

P1

VZ IN1 IN2

VCC1 VCC2

P2

OUT2

1 2 3 4 5 6 7 8 9

10

Input Output Mode

IN1 IN2 OUT1 OUT2

0000 Brake 1010 CLOCKWISE 0 1 0 1 COUNTER-CLOCKWISE 1100 Brake

Vcc

Comp

Vcc

22k

Rout

GND

1-28 (No.49825)

4.9 TEA6320T-X (IC161) : E.volume

•Pin layout

SDA

1

GND

TL B2L B1L

IVL

ILL

QSL

IDL

MUTE

ICL

IMD

IBL IAL

2 3 4 5 6 7 8

9 10 11 12 13 14 15 16

CD-CH

TAPE

TUNER

OUTLR

OUTLF

• Block diagram

10 8 9 7 6

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

SCL VCC OUTRR OUTRF TR B2R B1R IVR ILR QSR IDR Vref ICR CAP IBR IAR

KS-FX621

5

12

21 31

2

19

POWER SUPPLY

VOLUME 1

+20 to -31 dB

LOUDNESS

LEFT

16 15 13

11

14

22 20

SOURCE

SELECTOR

VOLUME 1

+20 to -31 dB

LOUDNESS

RIGHT

18 17

23 25 24 26 27 28

• Pin functions Pin No. Symbol I/O Functions

1 SDA I/O Serial data input/output. 2 GND - Ground. 3 OUTLR O output left rear. 4 OUTLF O output left front. 5 TL I Treble control capacitor left channel or

input from an external equalizer.

6 B2L - Bass control capacitor left channel or

output to an external equalizer. 7 B1L - Bass control capacitor left channel. 8 IVL I Input volume 1. left control part. 9 ILL I Input loudness. left control part.

10 QSL O Output source selector. left channel. 11 IDL - Not used 12 MUTE - Not used 13 ICL I Input C left source. 14 IMO - Not used 15 IBL I Input B left source. 16 IAL I Input A left source.

BASS LEFT

+15 dB

LOGIC

BASS RIGHT +15 dB

VOLUME 2

0 to 55 dB

BALANCE

FENDER REAR

VOLUME 2

0 to 55 dB BALANCE

FENDER FRONT

HC BUS

REC

3

4

32

TREBLE

LEFT

+12 dB

MUTE

FUNCTION

ZERO CROSS

DETECTOR

1

VOLUME 2

TREBLE

RIGHT +12 dB

0 to -55dB BALANCE

FENDER FRONT

VOLUME 2

0 to -55dB

BALANCE

FENDER REAR

29

30

Pin No. Symbol I/O Functions

17 IAR I Input A right source. 18 IBR I Input B right source. 19 CAP - Electronic filtering for supply. 20 ICR I Input C right source. 21 Vre f - Reference voltage (0.5Vcc) 22 IDR - Not used 23 QSR O Output source selector right channel. 24 ILR I Input loudness right channel. 25 IVR I Input volume 1. right control part. 26 B1R - Bass control capacitor right channel 27 B2R O Bass control capacitor right channel or

output to an external equalizer.

28 TR I Treble control capacitor right channel or

input from an external equalizer. 29 OUTRF O Output right front. 30 OUTRR O Output right rear. 31 Vcc - Supply voltage. 32 SCL I Serial clock input.

(No.49825)1-29

KS-FX621

4.10 AN80T05 (IC901) : Regulator

• Terminal layout & Block diagram

Reference Voltage

Thermal

Protection

ASO & Peak

Current Protection

Pre

Drive

Pre

Drive

AMP

Out

AMP

Out

Pre

Drive

123456789101112

ILL

10V

MODE2 MODE1 STB VDD

5.6V

AMP VCC ANT COM

• Pin function Pin No. Symbol Function

1 ILL 10V power supply for illumination. 2 MODE2 When 5V is input,becomes AM. and the antenna output is turned on. 3 MODE1 When 5V is input,becomes AM. and the output of FM is switched. 4 STB When 5V is input outputs to ILL,COM,and AMP. It is 0V usually. 5 VDD 5.6V power supply. 6 AMP Power supply supply to remote amplifier 7 VCC Back up. conn ects with ACC with it. 8 ANT Psower supply supply to auto antenna.

9 COM 8.7V power supply. 10 AM The power supply of 8.7V to AM. 11 FM The power supply of 8.7V to FM. 12 GND Ground

Pre

Drive

8.7VAM8.7VFM8.7V

Pre

Drive

GND

1-30 (No.49825)

KS-FX621

(No.49825)1-31

KS-FX621

VICTOR COMPANY OF JAPAN, LIMITED

AV & MULTIMEDIA COMPANY MOBILE ENTERTAINMENT CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.49825)

Printed in Japan

200303WPC

PARTS LIST

[ KS-FX621 ]

* All printed circuit boards and its assemblies are not available as service parts.

Area suffix

KS-FX621

U --------------------- Other Areas

- Contents -

Exploded view of general assembly and parts list (Block No.M1) Cassette mechanism assembly and parts list (Block No.MP) Electrical parts list (Block No.01~03)

Packing materials and accessories parts list (Block No.M3,M5)

3-2 3-4 3-8

3-12

No. 49825 3-1

KS-FX621

Exploded view of general assmbly and parts list

56

15

58

59

60

57

15

53

50

54

10

14

17

14

52

A

55

Main board

B

24

25

12

16

20

21

18

16

42

Block No.

41

M

11

M

1

M

48

45

49

47

43

46

LCD1

23

22

19

18

A

8

B

6

9

2

13

5

3

5

42

Front board

5

4

5

7

13

1

13

36

38

31

35

51

30

29

28

32

26

27

37

40

34

39

33

44

3-2

Exploded view of general assembly and parts list

Block No. [M][1][M][M]



Symbol No.

1 ------------ MECHA 2 FSYH4036-050 SPACER 3 GE20136-001A MECHA BKT(L) 4 FSKL2002-002 MECHA BKT(R) 5 QYSDST2606Z SCREW 2.6mm x 6mm(x4) 6 QYSDST2606Z SCREW 2.6mm x 6mm 7 LV40847-002A SPACER 8 GE10043-011A TOP CHASIS 9 GE40135-001A EARTH PLATE 10 GE30568-006A HEA T SINK 11 GE30393-001A BOTTOM COVER 12 FSMA3004-203 INSULATOR 13 QYSDST2604Z SCREW 2.6mm x 4mm(x4) 14 FSKZ4005-001 SCREW (x2) 15 QYSDST2604Z SCREW 2.6mm x 4mm(x2) 16 QYSDST2606Z SCREW 2.6mm x 6mm(x2) 17 QYSDST2612Z SCREW 2.6mm x 12mm(x2) 18 QYSDST2004M MINI SCREW 2mm x 4mm(x2) 19 GE10054-001A FRONT CHASSIS 20 GE30583-001A LOCK LEVER 21 FSKW4005-003 TORSION SPRING 22 FSXP3026-002 RLS KNOB 23 FSKW3002-004 COMP. SPRING 24 FSJC3014-003 CASSETTE LID 25 VKW4947-002 DOOR SPRING 26 GE10039-001A FRONT PANEL 27 GE30303-006A FINDER ASSY 28 FSJK3014-001 LIGHT LENS 29 GE20119-001A PRESET BUTTON 30 FSYH4036-077 SHEET 31 GE30304-001A POWER BUTTON 32 GE30305-001A EJECT BUTTON 33 GE20131-012A D.FUNC. BUTTON 34 GE30307-001A SND FUNC BUTTON 35 FSYH4036-032 SHEET 36 GE20130-002A PUSH BUTTON 37 GE20120-001A UP/DOWN BUTTON 38 GE20118-002A +/- BUTTON 39 GE30306-001A DETACH BUTTON 40 FSKW3002-012 COMP.SPRING 41 GE10040-002A REAR COVER 42 VKZ4777-001 MINI SCREW (x4) 43 GE30308-001A LCD LENS 44 GE30309-001A LCD CASE 45 GE30310-001A LENS CASE 46 GE40125-003A LIGHTING SHEET 47 GE40171-001A LIGHTING SHEET 48 GE30648-001A NAME PLATE 49 QNZ0440-001 LCD CONNECTOR



50 QMFZ047-150-T FUSE 15A 51 GE30854-001A LED HOLDER 52 GE30382-013A REAR BRACKET 53 GE40103-002A REG BRACKET 54 GE40136-001A IC BRACKET 55 GE40107-002A HEA T SINK 56 QYSDST2606Z SCREW 2.6mm x 6mm 57 QYSDSF2606Z SCREW 2.6mm x 6mm(x2) 58 QYSDSF2606Z SCREW 2.6mm x 6mm 59 QYSDST2606Z SCREW 2.6mm x 6mm 60 QYSDST2606Z SCREW 2.6mm x 6mm LCD1 QLD0251-001 LCD MODULE

Part No. Part Name Description Local

KS-FX621

3-3

KS-FX621

Cassette mechanism assembly and parts list

59

CDS-802JE3

24

28

64

116

27

108

Block No.

4

M

P

M

94

7

33

10

93

17

45

65

11

106

16

44

111

34

117

37

111

43

40

114

46

39

47

66

38

22

50

3

23

63

32

66

96

73

67

91

38

114

25

5

62

35

75

1

114

26

6

51

21

110

31

42 61

49

113

109

2

113

41

60

48

3-4

82

87

84

107

83

86

107

85

111

13

74

72 12

71

Cassette mechanism

Block No. [M][P][M][M]



Symbol No.

1 X-0802-1009S MAIN CHASSIS AS 2 X-0802-1002S SLIDE CHASSIS A 3 X-0802-1003S SIDE BKT ASSY 4 X-0802-1004S CASSETTE HANGER 5 X-0802-1005S PINCH ARM F ASS 6 X-0802-1006S PINCH ARM R ASS 7 X-0802-1007S GEARBASE LINK A 10 X-0802-2001S MODE RACK ASSY 11 X-0802-2002S GEAR BASE ASSY 12 1-0802-6001S FLYWHEE L ASSY F 13 1-0802-6002S FLYWHEE L ASSY R 16 X-0802-7002S SUB MOTOR ASSY 17 X-0802-7004S MAIN MOTOR ASSY 21 1-0802-1002S DIRECTION PLATE 22 1-0802-1005S DIRECTION LINK 23 1-0802-1006S CASSETTE HOLDER 24 1-0802-1011S EJECT CAM LIMIT 25 1-0802-1012S HEAD SUPT SPG 26 1-0802-1013S PINCH SPG ARM 27 1-0802-1014S LOAD ARM 28 1-0802-1015S EJECT CAM PLA T E 31 1-0101-2056S IDLE PULLEY(A1) 32 1-0802-2001S CASSETTE GUIDE 33 1-0802-2004S GEAR BASE ARM 34 1-0802-2006S LOAD RACK 35 1-0802-2007S TAPE GUIDE 37 1-0802-2009S REDUCTION GEARA 38 1-0802-2010S REEL SPINDLE (x2) 39 1-0802-2011S REEL DRIVER (x2) 40 1-0802-2012S REDUCTION GEARB 41 1-0802-2013S SPG HOLDER F 42 1-0802-2014S SPG HOLDER R 43 1-0802-2015S MODE GEAR 44 1-0802-2016S TAKE UP GE AR 45 1-0802-2017S REFLECTOR GEAR 46 1-0802-2018S RACK LINK 47 1-0802-2019S MODE SW ACTUATR 48 1-0802-2020S FRICTION GEARPL 49 1-0802-2021S FRICTION GEARFF 50 1-0802-2022S CASSETTE CA TCH 51 1-0802-2026S FFC PAD 59 1-0802-4001S EJECT CAM PL SP 60 1-0802-4002S TU SPG 61 1-0802-4003S FF SPG 62 1-0802-4004S PINCH ARM SPG 63 1-0802-4005S HOLDER STA B SPG 64 1-0802-4006S HOLDER CUSH SPG 65 1-0802-4007S GEAR BASE SPG 66 1-0802-4008S REEL DRIVER SPG (x2) 67 1-0802-4013S COMPULSION SPG 71 1-0802-5001S BELT 72 1-0802-5002S FELT 7.5*18.5*1 73 1-0802-5003S AZIMUTH SCREW (x2) 74 1-0802-5004S FELT 11*18.5*1 75 1-0050-5023S WTRE CLAMPER 82 1-0802-7001S REEL PCB DL

83 1-0802-7010S 84 1-0802-7003S SW(MICMPU11750)

85 1-0802-7016S FLAT CABLE 10P 86 1-0801-7024S PHOTO SENSOR 87 1-0802-7009S SW(MICMPU12370)

91 1-0802-7007S 93 1-0801-7009-0S M.MOTOR WIRE B

94 1-0801-7009-1S M.MOTOR WIRE R 96 1-0802-7017S JOINT WIRE ASSY 106 2-1032-0025-C2S SCREW (x2) 107 2-13S2-0025-P2S +PLAIN SCR M2 (x2) 108 2-1112-6035-C2S +PLAIN SCR M2.6 109 2-1816-0032-E8S MYLA R WASHER(S) (x2) 110 2-1812-0032-D2S PSW-S 1.2 111 1-0036-5024S PSW(REEL) (x3) 113 2-1821-0040-D1S POLY W ASH ER (x2)

Part No. Part Name Description Local

SW(MATSUCHITA ESE22)

HEAD(MITSUMI P-

5344)



Symbol No.

114 2-1821-0040-D2S PSW-S 2.1 (x3) 116 2-1711-5040-16S E RING 117 2-1031-7030-C2S SCREW (x2)

Part No. Part Name Description Local

KS-FX621

3-5

KS-FX621

Grease point 1/2

FG-84M MEA-512R MEN-223

SW-902

CFD-409 CFD-250H EP-56 SW-474B

1

2

3

3-6

5

6

4

Grease point 2/2

7

KS-FX621

10

21

27

11

24

28

12

13

33

35

41

39

44

46

42

62

3-7

KS-FX621

Electrical parts list

Main board

Block No. [0][1][0][0]



Symbol No.

IC161 TEA6320T-X IC IC301 LA4743K POWER IC IC701 LC72366-9B41 IC IC801 HD74HC126P IC IC901 AN80T05 IC IC902 KIA7810PI 10V REGULATOR

Q4 KRC102M-T DIGI TRANSISTOR Q31 KTC3199/GL/-T TR I/M Q32 KTC3199/GL/-T TR I/M Q241 KTC3199/GL/-T TR I/M Q301 KRC102M-T DIGI TRANSISTOR Q321 2SD2144S/VW/-T TRANSISTOR Q351 2SD2144S/VW/-T TRANSISTOR Q701 KTC3199/GL/-T TR I/M Q781 KRA102M-T DIGI TRANSISTOR Q782 KRA102M-T DIGI TRANSISTOR Q901 KTA1267/YG/-T TRANSISTOR Q902 KRC102M-T DIGI TRANSISTOR Q903 KRA102M-T DIGI TRANSISTOR Q904 KRC102M-T DIGI TRANSISTOR Q905 2SA1855/RST/-T TRANSISTOR Q906 KRC102M-T DIGI TRANSISTOR Q907 KTA1267/YG/-T TRANSISTOR Q976 KTA1267/YG/-T TRANSISTOR Q977 KTC3199/GL/-T TR I/M

D1 1SS133-T2 SI DIODE D2 1SS133-T2 SI DIODE D10 RB721Q-40-T2 DIODE D31 MTZJ9.1C-T2 Z.DIODE I M D32 1SS133-T2 SI DIODE D79 1SS133-T2 SI DIODE D241 RB721Q-40-T2 DIODE D242 RB721Q-40-T2 DIODE D310 1SS133-T2 SI DIODE D321 1SS133-T2 SI DIODE D702 1SS133-T2 SI DIODE D704 1SS133-T2 SI DIODE D705 MTZJ6.2B-T2 Z DIODE D706 MTZJ6.2B-T2 Z DIODE D707 MTZJ6.2B-T2 Z DIODE D708 MTZJ6.2B-T2 Z DIODE D709 MTZJ6.2B-T2 Z DIODE D710 MTZJ6.2B-T2 Z DIODE D711 MTZJ6.2B-T2 Z DIODE D715 MTZJ6.2B-T2 Z DIODE D781 1SS133-T2 SI DIODE D782 MTZJ11B-T2 Z DIODE D901 1N5401-F64 DIODE D902 1SS133-T2 SI DIODE D903 1A3G-T1 SI DIODE D904 1A3G-T1 SI DIODE

C1 QERF1CM-106Z E CAPACITOR 10uF 16V M C2 QEKJ1CM-106Z E CAPACITOR 10uF 16V M C4 QDVB1EZ-223Y C CAPACITOR 0.022uF 25V Z C6 QDYB1CM-103Y C CAPACITOR 0.01uF 16V M C8 QCBB1HK-121Y C CAPACITOR 120pF 50V K C9 QEKJ1HM-104Z E CAPACITOR 0.1uF 50V M C10 QDGB1HK-102Y C CA PACITOR 1000pF 50V K C12 QDYB1CM-103Y C CAPACITOR 0.01uF 16V M C13 QERF1AM-107Z E CAPACITOR 100uF 10V M C31 QEKJ1HM-104Z E CAPACITOR 0.1uF 50V M C32 QEKJ1HM-104Z E CAPACITOR 0.1uF 50V M C33 QEQF1HM-225Z E CAPACITOR 2.2uF 50V M C34 QDGB1HK-102Y C CA PACITOR 1000pF 50V K C35 QERF1AM-227Z E CAPACITOR 220uF 10V M C81 QDX11EK-183Z C CAPACITOR 0.018uF 25V K C82 QERF1HM-105Z E CAPACITOR 1uF 50V M C91 QDX11EK-183Z C CAPACITOR 0.018uF 25V K C92 QERF1HM-105Z E CAPACITOR 1uF 50V M

Part No. Part Name Description Local



Symbol No.

C162 QERF1HM-105Z E CAPACITOR 1uF 50V M C163 QERF1HM-105Z E CAPACITOR 1uF 50V M C164 QFLA1HJ-822Z M CAPACITOR 8200pF 50V J C165 QFVD1HJ-154Z MF CAPACITOR 0.15uF 50V J C166 QFVD1HJ-224Z MF CAPACITOR 0.22uF 50V J C167 QFV61HJ-333Z MF CAPACITOR 0.033uF 50V J C168 QDXB1CM-562Y C CAPACITOR 5600pF 16V M C172 QERF1HM-105Z E CAPACITOR 1uF 50V M C173 QERF1HM-105Z E CAPACITOR 1uF 50V M C174 QFLA1HJ-822Z M CAPACITOR 8200pF 50V J C175 QFVD1HJ-154Z MF CAPACITOR 0.15uF 50V J C176 QFVD1HJ-224Z MF CAPACITOR 0.22uF 50V J C177 QFV61HJ-333Z MF CAPACITOR 0.033uF 50V J C178 QDXB1CM-562Y C CAPACITOR 5600pF 16V M C181 QERF1HM-105Z E CAPACITOR 1uF 50V M C182 QERF1HM-105Z E CAPACITOR 1uF 50V M C191 QERF1HM-105Z E CAPACITOR 1uF 50V M C192 QERF1HM-105Z E CAPACITOR 1uF 50V M C195 QERF1CM-476Z E CAPACITOR 47uF 16V M C196 QERF1AM-107Z E CAPACITOR 100uF 10V M C197 QERF1AM-107Z E CAPACITOR 100uF 10V M C198 QDYB1CM-103Y C CAPACITOR 0.01uF 16V M C199 QCFB1HZ-104Y C CAPACITOR 0.1uF 50V Z C241 QERF1HM-105Z E CAPACITOR 1uF 50V M C242 QERF1CM-226Z E CAPACITOR 22uF 16V M C243 QCFB1HZ-473Y C CAPACITOR 0.047uF 50V Z C244 QERF1HM-474Z E CAPACITOR 0.47uF 50V M C301 QERF1CM-106Z E CAPACITOR 10uF 16V M C302 QERF1HM-475Z E CAPACITOR 4.7uF 50V M C303 QERF1EM-475Z E CAPACITOR 4.7uF 25V M C304 QCBB1HK-223Y C CAPACITOR 0.022uF 50V K C305 QERF1CM-226Z E CAPACITOR 22uF 16V M C306 QCFB1HZ-104Y C CAPACITOR 0.1uF 50V Z C307 QCFB1HZ-104Y C CAPACITOR 0.1uF 50V Z C308 QCFB1HZ-104Y C CAPACITOR 0.1uF 50V Z C309 QCFB1HZ-104Y C CAPACITOR 0.1uF 50V Z C321 QCBB1HK-471Y C CAPACITOR 470pF 50V K C322 QFVD1HJ-224Z MF CAPACITOR 0.22uF 50V J C331 QCBB1HK-471Y C CAPACITOR 470pF 50V K C332 QFVD1HJ-224Z MF CAPACITOR 0.22uF 50V J C341 QCBB1HK-471Y C CAPACITOR 470pF 50V K C342 QFVD1HJ-224Z MF CAPACITOR 0.22uF 50V J C351 QCBB1HK-471Y C CAPACITOR 470pF 50V K C352 QFVD1HJ-224Z MF CAPACITOR 0.22uF 50V J C701 QDUB1HJ-270Y C CAPACITOR 27pF 50V J C702 QDCB1HJ-220Y C CAPACITOR 22pF 50V J C703 QERF1CM-106Z E CAPACITOR 10uF 16V M C704 QERF0JM-107Z E CAPACITOR 100uF 6.3V M C705 QFVD1HJ-224Z MF CAPACITOR 0.22uF 50V J C707 QCFB1HZ-104Y C CAPACITOR 0.1uF 50V Z C711 QCBB1HK-103Y C CAPACITOR 0.01uF 50V K C781 QERF1AM-227Z E CAPACITOR 220uF 10V M C782 QERF1CM-476Z E CAPACITOR 47uF 16V M C801 QCFB1HZ-473Y C CAPACITOR 0.047uF 50V Z C901 QEZ0615-228 E CAPACITOR 2200uF C902 QERF1CM-106Z E CAPACITOR 10uF 16V M C903 QERF1AM-106Z E CAPACITOR 10uF 10V M C904 QERF1AM-227Z E CAPACITOR 220uF 10V M C905 QERF1CM-106Z E CAPACITOR 10uF 16V M C906 QERF1CM-106Z E CAPACITOR 10uF 16V M C907 QERF1CM-106Z E CAPACITOR 10uF 16V M C909 QDYB1CM-103Y C CAPACITOR 0.01uF 16V M C910 QERF1AM-227Z E CAPACITOR 220uF 10V M C911 QFVD1HJ-104Z MF CAPACITOR 0.1uF 50V J C912 QEZ0423-228 E CAPACITOR 2200uF C917 QFV11HJ-334AZ MF CAPACITOR 3.34F 50V J

R1 QRE141J-100Y C RESISTOR 10Ω 1/4W J R4 QRE141J-100Y C RESISTOR 10Ω 1/4W J R6 QRE141J-820Y C RESISTOR 82 R7 QRE141J-103Y C RESISTOR 10k R8 QRE141J-822Y C RESISTOR 8.2kΩ 1/4W J R9 QRE141J-223Y C RESISTOR 22k R11 QRE141J-473Y C RESISTOR 47k R31 QRE141J-102Y C RESISTOR 1kΩ 1/4W J R32 QRE141J-102Y C RESISTOR 1k

Part No. Part Name Description Local

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

3-8



Symbol No.

Part No. Part Name Description Local



Symbol No.

KS-FX621

Part No. Part Name Description Local

R33 QRE141J-102Y C RESISTOR 1kΩ 1/4W J R34 QRE141J-103Y C RESISTOR 10kΩ 1/4W J R35 QRE141J-152Y C RESISTOR 1.5kΩ 1/4W J R36 QRE141J-471Y C RESISTOR 470Ω 1/4W J R81 QRE141J-332Y C RESISTOR 3.3kΩ 1/4W J R82 QRE141J-682Y C RESISTOR 6.8k R91 QRE141J-332Y C RESISTOR 3.3k R92 QRE141J-682Y C RESISTOR 6.8kΩ 1/4W J R161 QRE141J-223Y C RESISTOR 22kΩ 1/4W J R162 QRE141J-222Y C RESISTOR 2.2kΩ 1/4W J R163 QRE141J-392Y C RESISTOR 3.9kΩ 1/4W J R164 QRE141J-122Y C RESISTOR 1.2kΩ 1/4W J R171 QRE141J-223Y C RESISTOR 22kΩ 1/4W J R172 QRE141J-222Y C RESISTOR 2.2kΩ 1/4W J R173 QRE141J-392Y C RESISTOR 3.9kΩ 1/4W J R174 QRE141J-122Y C RESISTOR 1.2kΩ 1/4W J R195 QRE141J-100Y C RESISTOR 10Ω 1/4W J R241 QRE141J-154Y C RESISTOR 150kΩ 1/4W J R242 QRE141J-154Y C RESISTOR 150kΩ 1/4W J R243 QRE141J-184Y C RESISTOR 180kΩ 1/4W J R244 QRE141J-223Y C RESISTOR 22k R245 QRE141J-123Y C RESISTOR 12k R246 QRE141J-101Y C RESISTOR 100Ω 1/4W J R247 QRE141J-102Y C RESISTOR 1kΩ 1/4W J R248 QRE141J-563Y C RESISTOR 56kΩ 1/4W J R301 QRE141J-472Y C RESISTOR 4.7kΩ 1/4W J R303 QRE141J-272Y C RESISTOR 2.7kΩ 1/4W J R321 QRE141J-273Y C RESISTOR 27kΩ 1/4W J R322 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R325 QRE141J-222Y C RESISTOR 2.2kΩ 1/4W J R331 QRE141J-273Y C RESISTOR 27kΩ 1/4W J R332 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R341 QRE141J-273Y C RESISTOR 27kΩ 1/4W J R342 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R343 QRE141J-102Y C RESISTOR 1kΩ 1/4W J R344 QRE141J-101Y C RESISTOR 100Ω 1/4W J R351 QRE141J-273Y C RESISTOR 27kΩ 1/4W J R352 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R353 QRE141J-102Y C RESISTOR 1kΩ 1/4W J R354 QRE141J-101Y C RESISTOR 100Ω 1/4W J R355 QRE141J-222Y C RESISTOR 2.2kΩ 1/4W J R701 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R702 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R703 QRE141J-472Y C RESISTOR 4.7kΩ 1/4W J R704 QRE141J-472Y C RESISTOR 4.7kΩ 1/4W J R705 QRE141J-472Y C RESISTOR 4.7kΩ 1/4W J R706 QRE141J-472Y C RESISTOR 4.7kΩ 1/4W J R708 QRE141J-472Y C RESISTOR 4.7kΩ 1/4W J R709 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R710 QRE141J-473Y C RESISTOR 47k R711 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R712 QRE141J-473Y C RESISTOR 47k R713 QRE141J-563Y C RESISTOR 56k R714 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R716 QRE141J-473Y C RESISTOR 47k R717 QRE141J-472Y C RESISTOR 4.7k R718 QRE141J-472Y C RESISTOR 4.7kΩ 1/4W J R719 QRE141J-472Y C RESISTOR 4.7k R720 QRE141J-472Y C RESISTOR 4.7kΩ 1/4W J R721 QRE141J-222Y C RESISTOR 2.2k R722 QRE141J-222Y C RESISTOR 2.2k R723 QRE141J-222Y C RESISTOR 2.2kΩ 1/4W J R724 QRE141J-332Y C RESISTOR 3.3k R725 QRE141J-332Y C RESISTOR 3.3k R727 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R728 QRE141J-222Y C RESISTOR 2.2k R729 QRE141J-222Y C RESISTOR 2.2k R730 QRE141J-222Y C RESISTOR 2.2k R731 QRE141J-472Y C RESISTOR 4.7k R734 QRE141J-103Y C RESISTOR 10kΩ 1/4W J R735 QRE141J-103Y C RESISTOR 10k R736 QRE141J-103Y C RESISTOR 10k R737 QRE141J-103Y C RESISTOR 10kΩ 1/4W J R738 QRE141J-222Y C RESISTOR 2.2k R743 QRE141J-472Y C RESISTOR 4.7k R750 QRE141J-683Y C RESISTOR 68kΩ 1/4W J R801 QRE141J-104Y C RESISTOR 100k R802 QRE141J-104Y C RESISTOR 100k

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

Ω

1/4W J

R803 QRE141J-101Y C RESISTOR 100Ω 1/4W J R804 QRE141J-334Y C RESISTOR 330kΩ 1/4W J R805 QRE141J-334Y C RESISTOR 330kΩ 1/4W J R806 QRE141J-104Y C RESISTOR 100kΩ 1/4W J R807 QRE141J-101Y C RESISTOR 100Ω 1/4W J R808 QRE141J-223Y C RESISTOR 22k R809 QRE141J-103Y C RESISTOR 10k R810 QRE141J-104Y C RESISTOR 100kΩ 1/4W J R811 QRE141J-682Y C RESISTOR 6.8kΩ 1/4W J R812 QRE141J-242Y C RESISTOR 2.4kΩ 1/4W J R813 QRE141J-242Y C RESISTOR 2.4kΩ 1/4W J R814 QRE141J-682Y C RESISTOR 6.8kΩ 1/4W J R901 QRE141J-101Y C RESISTOR 100Ω 1/4W J R902 QRE141J-682Y C RESISTOR 6.8kΩ 1/4W J R903 QRE141J-113Y C RESISTOR 11kΩ 1/4W J R908 QRE141J-473Y C RESISTOR 47kΩ 1/4W J R909 QRE141J-102Y C RESISTOR 1kΩ 1/4W J R910 QRE141J-102Y C RESISTOR 1kΩ 1/4W J R976 QRE141J-433Y C RESISTOR 43kΩ 1/4W J R977 QRE141J-683Y C RESISTOR 68kΩ 1/4W J R978 QRE141J-273Y C RESISTOR 27k R979 QRE141J-473Y C RESISTOR 47k

L1 QQL231K-4R7Y INDUCTOR I/M 4.7uH K L901 QQR0703-001 CHOKE COIL L902 QQL231K-470Y INDUCTOR I/M 47uH K L903 QQL231K-470Y INDUCTOR I/M 47uH K

CJ321 QNN0519-001 PIN JACK CJ701 VMC0334-001 CONNECTOR CP701 QGB1214J1-18S CONNECTOR B-B (1-18) CP801 QNZ0095-001 CONNECTOR CP981 QNZ0611-001 16P CONNECTOR J1 QNB0100-002 CAR ANT JACK TU1 QAU0281-001 TUNER PACK X701 QAX0406-001Z CRYSTAL

Ω Ω

Front board

Block No. [0][2][0][0]



Symbol No.

IC651 PT6523LQ IC IC652 RPM6938-SV4 REMOCON RCV

D601 SML-310LT/MN/-X LED D602 LNJ308G81/1-3/X LED D603 LNJ308G81/1-3/X LED D604 LNJ308G81/1-3/X LED D605 LNJ308G81/1-3/X LED D606 LNJ308G81/1-3/X LED D607 LNJ308G81/1-3/X LED D608 SML-310VT/JK/-X LED D609 LNJ308G81/1-3/X LED D610 LNJ308G81/1-3/X LED D611 LNJ308G81/1-3/X LED D612 LNJ308G81/1-3/X LED D613 LNJ308G81/1-3/X LED D614 LNJ308G81/1-3/X LED D615 LNJ308G81/1-3/X LED D616 LNJ308G81/1-3/X LED D617 LNJ308G81/1-3/X LED D618 LNJ308G81/1-3/X LED D619 LNJ308G81/1-3/X LED D620 LNJ308G81/1-3/X LED D640 NSPW310BS/B2RS/ LED D641 NSPW310BS/B2RS/ LED D651 UDZS5.6B-X Z DIODE 1.5kΩ 1/10W J D652 MA152WA-X DIODE D653 MA152WA-X DIODE D654 MA152WK-X DIODE D655 MA152WK-X DIODE D657 MA3062/H/-X Z DIODE

Part No. Part Name Description Local

1/4W J 1/4W J

3-9

KS-FX621



Symbol No.

C651 NCB21HK-223X C CAPACIT OR 0.022uF 50V K C652 NBE20JM-106X TS E CAPACIT OR 10uF 6.3V M C653 NCB21HK-681X C CAPACIT OR 680pF 50V K C654 NBE20JM-475X TS E CAPACIT OR 4.7uF 6.3V M

D651 UDZS5.6B-X Z DIODE 1.5k R601 NRSA63J-681X MG RESISTOR 680 R602 NRSA63J-561X MG RESISTOR 560Ω 1/16W J R603 NRSA63J-681X MG RESISTOR 680Ω 1/16W J R604 NRSA63J-911X MG RESISTOR 910Ω 1/16W J R605 NRSA63J-122X MG RESISTOR 1.2kΩ 1/16W J R607 NRSA63J-681X MG RESISTOR 680Ω 1/16W J R608 NRSA63J-561X MG RESISTOR 560Ω 1/16W J R609 NRSA63J-681X MG RESISTOR 680Ω 1/16W J R610 NRSA63J-911X MG RESISTOR 910Ω 1/16W J R611 NRSA63J-122X MG RESISTOR 1.2kΩ 1/16W J R612 NRSA63J-152X MG RESISTOR 1.5kΩ 1/16W J R613 NRSA63J-681X MG RESISTOR 680Ω 1/16W J R614 NRSA63J-561X MG RESISTOR 560Ω 1/16W J R615 NRSA63J-681X MG RESISTOR 680Ω 1/16W J R616 NRSA63J-911X MG RESISTOR 910 R617 NRSA63J-122X MG RESISTOR 1.2k R618 NRSA63J-152X MG RESISTOR 1.5kΩ 1/16W J R630 NRS181J-331X MG RESISTOR 330Ω 1/8W J R631 NRS181J-331X MG RESISTOR 330Ω 1/8W J R635 NRSA02J-821X MG RESISTOR 820Ω 1/10W J R636 NRSA02J-821X MG RESISTOR 820Ω 1/10W J R637 NRSA02J-821X MG RESISTOR 820Ω 1/10W J R638 NRSA02J-511X MG RESISTOR 510Ω 1/10W J R639 NRSA02J-511X MG RESISTOR 510Ω 1/10W J R640 NRSA02J-122X MG RESISTOR 1.2kΩ 1/10W J R641 NRSA02J-122X MG RESISTOR 1.2kΩ 1/10W J R642 NRSA02J-221X MG RESISTOR 220Ω 1/10W J R643 NRSA02J-221X MG RESISTOR 220Ω 1/10W J R644 NRSA02J-221X MG RESISTOR 220Ω 1/10W J R645 NRSA02J-221X MG RESISTOR 220Ω 1/10W J R646 NRSA02J-511X MG RESISTOR 510Ω 1/10W J R647 NRSA02J-511X MG RESISTOR 510Ω 1/10W J R648 NRSA02J-821X MG RESISTOR 820Ω 1/10W J R649 NRSA02J-821X MG RESISTOR 820Ω 1/10W J R652 NRSA02J-473X MG RESISTOR 47kΩ 1/10W J R653 NRSA02J-184X MG RESISTOR 180kΩ 1/10W J R654 NRSA02J-103X MG RESISTOR 10kΩ 1/10W J R655 NRSA02J-103X MG RESISTOR 10kΩ 1/10W J R656 NRSA02J-103X MG RESISTOR 10kΩ 1/10W J R657 NRSA63J-103X MG RESISTOR 10kΩ 1/16W J R658 NRSA63J-471X MG RESISTOR 470Ω 1/16W J R659 NRSA02J-222X MG RESISTOR 2.2kΩ 1/10W J R660 NRSA02J-222X MG RESISTOR 2.2kΩ 1/10W J R661 NRSA63J-103X MG RESISTOR 10k

CP701 VMC0335-001 PANEL CONNECTOR S601 NSW0124-001X TACT SW S602 NSW0124-001X TACT SW S603 NSW0124-001X TACT SW S604 NSW0124-001X TACT SW S605 NSW0124-001X TACT SW S606 NSW0124-001X TACT SW S608 NSW0124-001X TACT SW S609 NSW0124-001X TACT SW S610 NSW0124-001X TACT SW S611 NSW0124-001X TACT SW S612 NSW0124-001X TACT SW S613 NSW0124-001X TACT SW S614 NSW0124-001X TACT SW S615 NSW0124-001X TACT SW S616 NSW0124-001X TACT SW S617 NSW0124-001X TACT SW S618 NSW0124-001X TACT SW S619 NSW0124-001X TACT SW S620 NSW0124-001X TACT SW S621 NSW0124-001X TACT SW

Part No. Part Name Description Local

Ω

1/10W J

Ω

1/16W J

Ω

1/16W J

Ω

1/16W J

Ω

1/16W J

Mecha control board

Block No. [0][3][0][0]



Symbol No.

IC401 CXA2559Q IC IC402 LB1641 IC

Q402 UN2211-X TRANSISTOR Q403 2SB1322/RS/-T TRANSISTOR

D401 MA3047/H/-X Z DIODE D402 1A3G-T1 SI DIODE

C401 NDC31HJ-101X C CAPACITOR 100pF 50V J C402 NDC31HJ-101X C CAPACITOR 100pF 50V J C403 NDC31HJ-101X C CAPACITOR 100pF 50V J C404 NDC31HJ-101X C CAPACITOR 100pF 50V J C405 NDC31HJ-101X C CAPACITOR 100pF 50V J C406 NDC31HJ-101X C CAPACITOR 100pF 50V J C407 NDC31HJ-101X C CAPACITOR 100pF 50V J C408 NDC31HJ-101X C CAPACITOR 100pF 50V J C409 QEKJ1CM-226Z E CAPACITOR 22uF 16V M C410 QFV61HJ-153Z MF CAPACITOR 0.015uF 50V J C411 QFV61HJ-153Z MF CAPACITOR 0.015uF 50V J C412 NCB31EK-104X C CAPACITOR 0.1uF 25V K C413 NCB31EK-104X C CAPACITOR 0.1uF 25V K C414 QEKJ1CM-226Z E CAPACITOR 22uF 16V M C415 NCB31EK-103X C CAPACITOR 0.01uF 25V K C418 NDC31HJ-221X C CAPACITOR 220pF 50V J C419 QEKJ1HM-474Z E CAPACITOR 0.47uF 50V M C421 NCB31HK-183X C CAPACITOR 0.018uF 50V K C422 NCB31EK-104X C CAPACITOR 0.1uF 25V K C423 QERF1CM-106Z E CAPACITOR 10uF 16V M C424 NCB31EK-104X C CAPACITOR 0.1uF 25V K C425 NCB31HK-103X C CAPACITOR 0.01uF 50V K

R401 NRS181J-681X MG RESISTOR 680Ω 1/8W J R402 NRSA63J-104X MG RESISTOR 100kΩ 1/16W J R403 NRSA63J-104X MG RESISTOR 100kΩ 1/16W J R404 NRSA63J-104X MG RESISTOR 100kΩ 1/16W J R405 NRSA63J-104X MG RESISTOR 100kΩ 1/16W J R406 NRSA63J-181X MG RESISTOR 180Ω 1/16W J R407 NRSA63J-181X MG RESISTOR 180Ω 1/16W J R408 NRSA63J-123X MG RESISTOR 12kΩ 1/16W J R409 NRSA63J-243X MG RESISTOR 24kΩ 1/16W J R410 NRSA63J-243X MG RESISTOR 24kΩ 1/16W J R411 NRSA63J-123X MG RESISTOR 12kΩ 1/16W J R412 NRSA02J-101X MG RESISTOR 100Ω 1/10W J R413 NRSA63J-183X MG RESISTOR 18kΩ 1/16W J R414 NRSA63J-392X MG RESISTOR 3.9k R415 NRSA63J-223X MG RESISTOR 22kΩ 1/16W J R416 NRSA63J-155X MG RESISTOR 1.5M R417 NRSA63J-103X MG RESISTOR 10k R418 NRSA63J-153X MG RESISTOR 15kΩ 1/16W J R422 NRSA02J-332X MG RESISTOR 3.3k R423 NRS181J-473X MG RESISTOR 47k R424 NRSA02J-332X MG RESISTOR 3.3kΩ 1/10W J R425 NRS181J-330X MG RESISTOR 33

CN401 QGB1214K1-18S CONNECTOR B-B (1-18) CN402 QGA2001C1-06 CONNECTOR W-B (1-6) CN403 QGF1219F1-10S CONNECTOR FFC/FPC (1-10)

Part No. Part Name Description Local

Ω

1/16W J

Ω

1/16W J

Ω

1/16W J

Ω

1/10W J

Ω

1/8W J

Ω

1/8W J

3-10

<MEMO>

KS-FX621

3-11

KS-FX621

Packing materials and accessories parts list

Block No. Block No.

M M

3

M

5

M

P6

P7

P5

A9

A10

P1

A1,A2

P7

P2

KIT : A3~A7

A11

A12

A13

P3

P4

A8

3-12

KS-FX621

Packing

Block No. [M][3][M][M]



Symbol No.

P1 FSPG4002-001 POLY BAG P2 QPA00801205 POLY BAG 8cm x 12cm P3 QPA01003003 POLY BAG 10cm x 30cm P4 FSYH4036-068 SHEET P5 QPC03004315P POLY BAG 30cm x 43cm P6 GE30649-001A CARTON P7 GE10036-001A EPS CUSHION (x2)

Part No. Part Name Description Local

Accessories

Block No. [M][5][M][M]



Symbol No.

A1 GET0113-001A INST BOOK ENG ARA CHA INA A2 GET0113-002A INSTALL MANUAL ENG ARA CHA INA A3 VKZ4027-202 PLUG NUT A4 VKH4871-001SS MOUNT BOLT A5 VKZ4328-001 LOCK NUT A6 WNS5000Z WASHER A7 GE40130-001A HOOK (x2) A8 FSJB3001-30C HARD CASE A9 GE20137-003A MOUNTING SLEEVE A0 GE20135-002A TRIM PLATE A11 QAM0013-006 16P CORD ASSY A 2 RM-RK31 REMOCON UNIT A 3 ------------ BATTERY KIT KSFX480K-SCREW1 SCREW PARTS KIT A3 TO A7

Part No. Part Name Description Local

3-13

KS-FX621

SCHEMATIC DIAGRAMS

CASSETTE RECEIVER

KS-FX621

CD-ROM No.SML200303

Contents

Block diagram Standard schematic diagrams Printed circuit boards

11 RPT

1097

8 MO

12 RND

SCM

MODE

Area Suffix

U --------------- Other Areas

2-1 2-2 2-5,6

No.49825SCH

2003/03

KS-FX621

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.

2-4

Block diagram

KS-FX621

LINE OUT

5

J1

ANT

TU1

FM/AM

TUNER

L-CH,R-CH

REAR LEFT

REAR RIGHT

IC161

TAPE.L

PHOTO

REEL

4

PHOTO REEL

SUBMO+ SUBMO -

IC402

MOTOR

TAPE.R

DRIVER

MAIN

MOTOR

SUB

MOTOR

3

SWITCH

SUBMO+ SUBMO -

TAPEIN STANDBY MODE

CN403 CN402

MOTOR REEL MODE TAPEIN STANDBY

IC401

HEAD

SUBMO+ SUBMO -

TAPE.L TAPE.R FF/REW MSOUT DIRECTION NRSW

CN401

CP701

MONO SD/ST S.METER IFREQ IFC FM/AMOSC EQ

IC701

MICON

J.BUS JBUS.SI JBUS.SO JBUS.IO JBUS.INT JBUS.SCK

E.VOLUME

L.CH R.CH

AMP

FWD-L

P. B .

HEAD

FWD-R REW-L REW-R

IC801

J-BUS

CJ321

OUTLF OUTRF OUTLR OUTRR

IC901

REGULATOR

IC301

POWER AMP

FRONTL+ FRONTLFRONTR+ FRONTRREARL+ REAERLREARR+ REARR-

2

COM1~COM3 S3~S52

LCD

IC651

LCD

CE,CLOCK,DATA

CP701

CJ701

DRIVER

KEY0~KEY2 REMOCON

SI/SO SCK

CP801

CD-CH

CP981

SKP

BATT

KEY MTRIX

S601~S620

IC652

REMOCON

1

AB CD E F G

2-1

Standard schematic diagrams

Main amp section

TU1

D708

D715

MTZJ6.2B-T2

R813

2.4k

D709

D710

MTZJ6.2B-T2

2.4K

0.1/50

C31

D711

MTZJ6.2B-T2

R814

QAU0281-001

L1

4.7u

R31

1k 10k

R33

R32

1k

C34

0.001

0.1/50

Q32

C32

KTC3199/GL/-TKTC3199/GL/-T

STDBY

TAPEIN

MODE

SUBMO+

SUBMO-

TAPE.L

TAPE.R

REEL

DOLBY

F/R

FF/REW

MOTOR

LCDSO

LCDSCK

LCDCE

KEY2

KEY1

KEY0

DETACH

C710

0.1uF

R801

R802

R803

6.8k

CH.R

GND

R804

CH.L

GND

MS

330k

1SS133-T2

D1

C33

2.2/50

Q31

ANALOGUE.BUS

100k

100

1SS133-T2

D2

R35

HD74HC126P

0.022

10

10/16

10

R1

R4

R34

MTZJ9.1C-T2

220/10

C35

D31

1.5K

470

R36D32

EO

1SS133-T2

AMVCC

REMOTE14V

10V

9V

PCNT14V

ILL10V

Vdd5V

ACC5V

0.1

C707

MEMORY

REMOTE14V

C801

0.047

R809

10k

Vdd5V

JBUS.INT

R810

JBUS.SCK

22k

100

R808

R807

IC801

330k

R805

5

QNB0100-002

J1

4

CP701

QGB1214J1-18S

To Head amp section CN401

3

CJ701

VMC0334-001

To LCD & Key control section CP701

D705

D706

D707

2

QNZ0095-001

MTZJ6.2B-T2

CP801

R812

R811

6.8k

JBUS.SI

JBUS.SO

JBUS.IO

100k

FMVCC

0.01

C12

100k

R806

82

R6

10/16

C1C2C4

FM/AM.OSC

0.01

0.018/25

C6

C81

RB721Q-40-T2

9V

REMOCON

IFREQ

MONO

J.BUS

KS-FX621

3.3k

R91

3.3k

R81

R11

47k

R8R9

8.2k

Q4

KRC102M-T

0.018/25

120p

22k

10k

C8

C91

R7

D10

IFREQ

S.METER

SD/ST

IFC

FF/REW

R701 R702 R703 R704 R705 R712 R713 R714

0.001

C10

MONO

1SS133-T2

6.8k

0.1/50

C9

R82

IC701

LC72366-9B41

D701

D702

D703

R727

47K

R728

2.2k

R729

2.2k

47k 47k

4.7k

4.7k 47k 56k 47k

KTC3199/GL/-T

1/50

C92

1/50

C82

6.8k

R92

TU.R

TU.L

Q701

REEL

MOTOR

SUBMO+

SUBMO-

TAPEIN

STDBY

EVOLCLK

EVOLDA

1.2k1.2k

R164

CH.L

3.9k

R163

TAPE.L

GND

LCDCE

LCDSO

LCDSCK

3.3k

2.2k

R724

R725

R723

R722

R721

4.7k

2.2k

R743

R731

R730

DOLBY

MS

MODE

F/R

DETACH

REMOCON

FM/AM

SD/ST

JBUS.INT

C162

TU.L

TU.R

C172

3.9k 1SS133-T2

R173

TAPE.R

CH.R

R174

JBUS.IO

JBUS.SO

JBUS.SI

JBUS.SCK

4.7k

R720

R719

R718

R717

C702

QAX0406-001Z

10k

2.2k

R735

R738

KEY2

S.METER

0.1 R162

C199

1/50

C163

C195

1/50

C173

47/16

C196

IC161

TEA6320T-X

22p

X701

C701

D704

1SS133-T2

10k

R736

R737

R706

R707 R708 R709 R710 R711 R750

KEY1

KEY0

0.15

C166

C165

0.15

C175

C176

C174 C164

0.0082 0.0082

22k 22k

R171 R161

2.2k 2.2k

R172

100/10

27p

C711

0.01

C705

0.22

C704

100/6.3

47k

R716

C703

10/16

4.7k 47k

4.7k 47k 47k 47k 68k

0.22

FM/AM.OSC

C167

0.033

C177

0.033

EO

IFC

KS-FX621

1/50

0.0056 C181

C182

C168

1/50

C178

C191

C192

1/50

0.0056

47k

10

C197

C198

R195

R352

100/10

9V

ILL10V

10V

FM/AM

Vdd5V

9V

Vdd5V

FMVCC

AMVCC

ACC5V

MEMORY

0.01

150k

R241

KTC3199/GL/-T

L903

47u

CJ321

QNN0519-001

IC301

1k

100

R354

R353

1k 100

R343 R344

47k

R342

R322

Q351

Q321

R325

R355

47k

R332

9V

12k

R245

150k

R243

C241

R242

1/50

R244

RB721Q-40-T2

180k

C243 D242

Q241

0.047

100

D241

R246

22k

1k

22/16

R247

C242

C917

0.33

Q904

KRC102M-T

C244

RB721Q-40-T2

KIA7810PI

C911

0.1

0.47/50

IC902

Q903 KRA102M-T

56k

R248

2SD2144S/VW/-T

2.2k

L902

KTA1267/YG/-T

D321

PCNT14V

IC901

AN80T05

Q901

KRC102M-T

2SA1855/RST/-T

Q906

KRC102M-T

Q902

R321

R341

R331

R351 C352

Q782

Q905

R909

1k

47u

27k

27k 0.22/50

D310

1SS133-T2

KRA102M-T

Q907

KTA1267/YG/-T

LA4743K

0.22/50

C322

C342

0.22/50

C332

0.22/50

470p

C351

Q781

47/16

MTZJ11B-T2

C782

D782

Vdd5V

R908

47k

Q977

KTC3199/GL/-T

47k

R979

1SS133-T2

D902

C912

2200/6.3

470p

C331

KRA102M-T

C781

REMOTE14V

R978

27k

C907

470p

C321

C341

D781

220/10

1SS133-T2

9V

PCNT5V

Q976

KTA1267/YG/-T

10/16

100/10

C13

C906

C905

10/16

R301

4.7k

KRC102M-T

R977

220/10

C904

4.7/25

10/16

0.022

C303

C301

C304

C306 C307

0.1 0.1

2.7k

R303

Q301

C901

2200/16

D901

1N5401-F64

L901

QQR0703-001

100

R901

R976

43k

68k

1A3G-T1

10/10

220/10

C910

C903

C902

10/16

QMFZ047-150-T

6.8k

R902

R903

11k

C909

0.01

D904

1A3G-T1

D903

1K

R910

4.7/50

22/16

C305

C302

C308

C309

0.1

CP981

QNZ0611-001

QAM0013-006

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

1

TUNER SIGNAL

TAPE SIGNAL

CD CHANGER SIGNAL

FRONT SIGNAL

REAR SIGNAL

2-2

HAB C DE FG

KS-FX621

LCD & Key control section

5

LCD QLD0251-001

To Main amp

4

section CJ701

ILL10V

REMOCON

LCDSO

LCDSCK

GND

LCDCE

ACC5V

KEY2

KEY1

KEY0

VMC0335-001

CP701

3

R659

10k

R655

10k

R656

10k

R654

R660

2.2k

D655

MA152WK-X

D654

MA152WK-X

MA152WA-X

D653

R653

180K

MA152WA-X

D652

R652

C652

C653

C651

UDZS5.6B-X

D651

0.022

10/6.3

47k

680p

R661

10k

IC651

PT6523LQ

2

R643

D611

RPM6938-SV4

10K

R657

D657

MA3062/H/-X

IC652

C654

4.7/6.3

470

R658

330

R630

D640

NSPW310BS/B2RS/

330

R631

D641

NSPW310BS/B2RS/

820

R637

D603

D602

820

R636

D601

820

R635

D608

1.2k

R640

510

R639

D604

D605

D606

510

R638

D612

D607

D609

220

1.2k

220

R642

R641

R601

680

S601

R607

680 910

S608

R613 R614 R615

680 560

S615

S616

S602

S609

R608

R602

560

S617

S603

S610

R603

R609

680

R604

910

S604

R610

S611

R616

910 1.2k

S618

S605

S619

S612

R605

1.2k

R611

1.2k

R617

S613

S620

S606

R612

R618

1.5k

S614

S621

820

R649

D620

D619

D613

D616

820

510

R648

R647

D617

D618

D614

D615

D610

510

220

R646

R645

R644

1

AB CD E F G

2-3

Head amp section

KS-FX621

5

680

CN403

QGF1219F1-10S

4

3

CN402

QGA2001C1-06

2

R401

100P

C401

100K

R402

100P

C402

100K

R403

100P

C403

100K

R404

100P

C404

100K

R405

C409

100P

22/16

100P

C408

C407

C406

C405

180 180

R406 R407

0.015

C411

0.015

C410

R408

24K

R409

12K

24K

R410

R411

12K

33K

VR402

33K

VR401

0.10.1

CXA2559Q

22/16

C414

C413C412

IC401

100

R412

18K

R413

0.1

C417

0.1

C416

220P

C418

R414

3.9K

0.47/50 C419

R417

10K

Q403

2SB1322/RS/-T

1A3G-T1

D402

R418

15k

22K

R415

C421

0.018

3.3K

R422

47K

Q402

UN2211-X

R416

1.5M

0.1

C422

R423

C415

0.01

IC402 LB1641

D401

MA3047/H/-X

3.3K

R424

10/16

C423

C425

0.01

0.1

C424

33

R425

CN401

QGB1214K1-18S

To Main amp section CP701

1

2-4

TAPE SIGNAL

HAB C DE FG

Printed circuit boards

Main board

5

KS-FX621

CP801

R344

R343

R325

C35

R355

D32

TU1

D712

D713

R36

D31

R34 R33

C33

C31

R1

C2

C12

R6

C1

C32

C81

C91

R7

C8

R729

R11

Q4

D10

R741

R746

C904

C710

R743

D705

J1

L1

4

D1

D2

C4

C5

C3

3

C10

C9

C903

R737

D715

R705

D707

D708

B761

2

R910

Q351 Q321

CP701

D321

R353

R354

C34 R31 R32

Q701

R709

R716

C707

R707

R164

C703

C162

C173

C172

C92

C195

R734

C704

R163 R173

R736

R701 R714 R713 R712

R704

C711

R703

C712

R735

L903

L718

R174 R814 R813

D709

R723

R811

R812

R730

D704

D710

Q31

Q32

R35

R4

R92

R91

R82

R81

B3

R728

R8

R9

C6

C910

R747

R742

R702

D706

CJ701

R162

C196

R750

R711

C163

R710

R722

C82

R242

C705

D711

C15

R721

IC901

R161

C166

C175

C165

C176

C13

C177

X701

C701

C168

IC161

R241

C905

C164

D903

C167

R171

IC701

C174

R172

D702

D904

C181

C702

C909

C197

C178

R708

L901

C182

R725

D901

D703

C713

C907

C192

D701

C906

C198

R724

C241

R195

C191

CP981

D310

C242

R247

R727

D760

Q906

R909

R352

R908

C331

D242

R332

R322

D79

Q905

R342

C332

C321

R246

R248

C306

D241

R731

Q782

C244

C307

R321

Q301

C782

R243 R245 C243 R244

C308

R809

R331 R351

R341

D782

Q781

D781

R719

C781

C902

Q241

D902

IC801

R902 R903

Q901

R720

C322

R810

C199

C341

R706

C342

R303

C303

R806

C351

Q907

Q902

R718

R803

IC902

C301

Q904

C309

C302

B905

C352

Q903

R901

R804

R805

R808

Q976

Q977

R807

R302

C917

IC301

R979

R801

C911

L902

C801

C901

R738

R301

R978

R977

R802

R717

R976

C305 C304

C912

1

AB C

2-5

KS-FX621

Front board

5

D601

S605

R605

S608

D618

IC652

D616

S604

R601

R604

D617

LCD1

S606

R607

D613

S609

D614

R608

S601

D619

R603

S603

R602

S602

D620

4

3

Forward side

D615

S610

R609

Reverse side

S611

D610

R610

S612

D611

S615

D612

R613

R614

R611

D609

S616

S613

D607

S617

R612

C653

R652

D608

D640

D641

D604

S620

D605

S621

D606

R615

R617

R618

R616

S618

S619

S614

D602

D603

R642

D654

D653

R655

C652

D655

C651

R656

D652

D640

D641

R631

R654

R643

R630

CP701

IC651

R657

D657

IC652

R635

R644

R658

C654

R645

R646

R648

R649

R647

R639

R638

R653

R651

R637

R636

R640

2

R641

1

2-6

AB CD

KS-FX621

Mecha board

5

C418

R415

R417

B410

C415

B411

R414

R418

R413

C417

B404

R412

CJ403

C412

B412

IC401

B405

R

9

0

4

C411

B402

R423

VR401

R408

C410

CJ401

B401

C409

C405

R407

C406

C408

C402

R406

C407

R403

R405

C403

R402

C404

R404

C401

R422

Q402

B407

C425

R410

Q401

C424

B406

R401

D402

R416

C419

C422

C414

B408

C416

C421

R420

Q403

B403

B413

R411

VR402

B409

R426

C423

4

D401

R425

C413

R424

IC402

3

2

1

AB C

2-7

KS-FX621

VICTOR COMPANY OF JAPAN, LIMITED

AV & MULTIMEDIA COMPANY 10-1,1Chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.49825SCH)

Printed in Japan

2003/03

JVC KSFX-621 Service manual

Specifications and Main Features

Frequently Asked Questions

User Manual