Jvc Ks-fx611 User manual

SERVICE MANUAL

CASSETTE RECEIVER

No.49677

Feb. 2002

KS-FX611

Area Suffix

UOther area

Scan

Music

Multi

MO

DISP

SCAN

LOUD

891011127

CD CHANGER CONTROL

Contents

Safety precaution

Disassembly method

Adjustment method

Description of major ICs

1- 2

1- 3

1-12

1-15~23

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TEL 13942296513 QQ 376315150 892498299

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KS-FX611

1-2

!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.

Safety precaution

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KS-FX611

1-3

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 aon 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

Fig.1

Fig.2

Fig.3

Front panel assembly

Eject button

Tab a

Front chassis assembly

Front chassis

assembly

Heat sink Tab a

Tab a

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KS-FX611

1-4

Remove the three screws Aon 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 bwith

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 sink

AA

Joints b

Joint b

Joints b

Joint b

Bottom cover

Rear panel

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KS-FX611

1-5

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 five screws C and the two

screws Dattaching the rear bracket on the back of

the body. Remove the rear panel.

Remove the two screws Eattaching the main board

on the bottom of the body. Disconnect connector

CP701 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 four screws Fattaching the cassette

mechanism section on the back of the top chassis.

1.

Removing the cassette mechanism section

(See Fig.9)

Fig.7

Fig.8

Fig.9

Rear panel

B

D

C

Main board

E

CP701

Cassette mechanism section

F

Top chassis

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KS-FX611

1-6

Prior to performing the following procedure, remove

the front panel assembly.

Remove the four screws Gattaching the rear cover

on the back of the front panel assembly.

Unjoint the eleven joints cwith 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

GG

G

Rear cover

Joints c

Front panel

Rear cover

Front panel

Control switch board

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KS-FX611

1-7

For the 6pin wire extending from connector CN402

on the head amplifier board, disconnect it from the

head relay board.

Disconnect the card wire from connector CN403 on

the head amplifier board.

Remove the screw Aattaching the head amplifier

board.

Move the tab aas shown in Fig.2 and remove the

head amplifier board while moving it in the direction

of the arrow.

1.

2.

3.

4.

Removing the head amplifier board.

(See Fig.1 and 2)

Disconnect the 6pin wire from connector CN402 and

the card wire from CN403 on the head amplifier

board (Refer to Fig.1 and 2).

Remove the four screws Bon the bottom of the

cassette mechanism.

1.

2.

Removing the cassette mechanism

assembly (See Fig.1 to 3)

Fig.1

Cassette mechanism ass’y

Head relay

board

6pin

wire

CN402 CN403

CN402

Head amplifier board

Fig.2

Tab a

Head amplifier board

Fig.3

Cassette mechanism ass’y

B

A

Head amplifier board

CN403

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KS-FX611

1-8

Unsolder the soldering bon the head relay board.

Remove the screw Cattaching the head relay board.

Remove the head relay board in the direction of the

arrow while releasing the two joints c.

1.

2.

3.

Removing the head relay board

(See Fig.4)

Remove the E washer attaching the load arm using

a pincette or something like that and remove the

spring d.

Move the part of the load arm marked upwards to

release it from the axis of rotation. Then rotate the

load arm in the direction of the arrow to remove it

from the cach.

1.

2.

Removing the load arm (See Fig.5)

Prior to performing the following procedure, remove

the head relay board.

Remove the screw Dattaching the sub chassis.

Push the tab ein the direction of the arrow to detach

the one side of the sub chassis. Then release the

sub chassis from the tab f.

1.

2.

Removing the sub chassis (See Fig.6)

Prior to performing the following procedure, remove

the head relay board, the load arm and the sub

chassis.

Remove the screw Eattaching the reinforce bracket.

Remove the reinforce bracket.

Push the tab gfixing the cassette holder in the

direction of the arrow and open the cassette holder

and the holder arm upward until they stop at an

angle of 45 degrees. Move the two joints hto the

side and remove the cassette holder and the holder

arm from the shaft.

1.

2.

3.

Removing the cassette holder and the

holder arm in the eject mode

(See Fig.7 and 8)

Fig.4 CSoldering b Joint c

Fig.6

Tab f

D

Tab e

Cach

Head relay board

Fig.7

Reinforce bracket

Reinforce

bracket

E

Cassette holder

Sub chassis

Head relay

board

Joint h

Holder arm

Load arm

Joint h

tab g

Fig.5

Spring d

Load arm E washer

Cassette mecha chassis

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KS-FX611

1-9

Prior to performing the following procedure, remove

the head relay board and the sub chassis.

Remove the two screws Fattaching the play head

(The spring under the play head comes off at the

same time).

1.

Removing the play head (See Fig.9)

Prior to performing the following procedure, remove

the head relay board and the sub chassis.

Push each tab i in the direction of the arrow and pull

out the pinch rollers on both sides.

1.

Removing the pinch roller ass’y

(See Fig.9)

Unsolder the soldering jon the reel disc board.

Push the seven tabs kon the bottom of the cassette

mechanism assembly in the direction of the arrow.

1.

2.

Removing the reel disc board

(See Fig.10)

Unsolder the two soldering lof the motor and the sub

motor.

Release the sub motor from the three tabs m. Push

the sub motor upward and pull out it.

Remove the belt on the bottom of the cassette

mechanism assembly and remove the two screws G

attaching the motor.

1.

2.

3.

Removing the motor and the sub motor

(See Fig.10 and 11)

The motors can be detached before

removing the load arm.

ATTENTION:

Fig.8

Cassette holder

and holder arm

Joint h

Shaft

Joint h

Fig.9

Tab i

Pinch roller ass’yPinch roller ass’y

F

Play head

Spring

Fig.11

Sub motor

Tab m

Load arm

Motor

Soldering l

Tab m

Soldering l

Tab m

Soldering j

Pinch roller ass’y

Tab i Tab i

Tab i

Fig.10

Cassette mechanism ass’y

Tabs k

Reel disc board

Soldering j

Tabs k

G

Motor Belt

Flyhwheel

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TEL 13942296513 QQ 376315150 892498299

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KS-FX611

1-10

Prior to performing the following procedure, remove

the head relay board, the load arm, the sub chassis,

the cassette holder, the holder arm and the reel disc

board.

Remove the belt on the bottom of the cassette

mechanism ass’y.

Remove the slit washer attaching the flywheel on the

upper side of the cassette mechanism ass’y and pull

out the flywheel downward. Then remove another

flywheel in the same way.

1.

2.

3.

Removing the flywheel

(See Fig.10 and 12)

Prior to performing the following procedure, remove

the head relay board, the load arm, the sub chassis,

the cassette holder and the holder arm.

Disengage the part ninside of the reel driver which

engages with the shaft, using a pincette or

something like that. Then remove the reel driver from

the shaft.

Remove the reel driver spring and the reel table.

1.

2.

Removing the reel disc ass’y( )

(See Fig.12 to 14)

When reassembling, make sure to use

a new slit washer.

ATTENTION:

Fig.10

Cassette mechanism ass’y

Tab k

Reel disc board

Soldering j

Tab k

G

Motor Belt

Flyhwheel

Fig.12

Plate

The part n

Reel driver

Reel disc ass’y( )

Push aside

the gear

Tabs o

Reel disc

ass’y( )

The part n

Reel driver

Tab o

Fig.13

Reel driver

Shaft

The part n

Fig.14

Reel driver spring

Reel table

Slit washer

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KS-FX611

1-11

Release the plate from the three tabs o.

Push aside the gear over the reel table using a

pincette or something like that.

Remove the reel disc ass’y ( ) as with the reel disc

ass’y ( ).

1.

2.

3.

Removing the reel disc ass’y( )

(See Fig.12 to 15)

Do not break the front panel tab fitted

to the metal cover.

ATTENTION:

Prior to performing the following

procedure, remove the reel disc ( ).

ATTENTION:

Fig.15

Push aside the gear and reattach the reel disc Ass’y( ).

Reel disc ass’y( )

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TEL 13942296513 QQ 376315150 892498299

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KS-FX611

1-12

Adjustment method

1.Digital osclloscope(100MHz)

Measuring conditions(Amplifier section)

Power supply voltage

Load impedance

Line out

Standard volume position

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 receiving.

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

deviation pilot off mono.

FM stereo mode 1kHz,67.5kHz dev. pilot7.5kHz dev.

Output level 0dB(1 V,50 /open terminal).

for DOLBY level measurement

For playback frequency measurement

For wow flutter & tape speed measurement

For head azimuth measurement

Cassette type for CTG-N

(mechanism adjustment)

DC14.4V(10.5~16V)

4 (2Speakers connection)

20k

Tuner section

BAND STEP

FM : 100kHz (Seek), 50kHz (Manual)

AM : 9kHz step

DUMMY LOAD

Exclusive dummy load should be used for AM

and FM dummy load,there is a loss of 6dB

between SSG output and antenna input. The

loss of 6dB need not be considered since

direct reading of figures are applied in this

working standard.

Arrangement of Adjusting

Cassette Mechanism Section

Azimuth screw

(Forward side)

Azimuth screw

(Reverse side)

Playback head

Tape speed adjust

Capstan motor

Cassette mechanism

(Surface)

Test Instruments reqired for adjustment

2.Frequency Counter meter

3.Electric voltmeter

4.Wow & flutter meter

5.Test Tapes

VT724

VT739

VT712

VT703

6.Torque gauge

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KS-FX611

1-13

1

C401

C402

C403

C404

C405

C406

C407

C408

C409

C410

C411

C412

C413

C414

C415

C416

C417

C418

C419

CP401

CP402

CP403

D401

D402

D403

IC401

IC402

Q401

Q402

Q403

R401

R402

R403

R404

R405

R406

R407

R408

R409

R410

R411

R412

R413

R414

R415

R416

R417

R418

R419

R420

R421

R422

R423

R424

R425

VR402 VR401

B403

B415

B413

B407

B416

B406

B414

B405

B412

B404

B410

B402

B408

B401 B409

B411

1

11

21

1

17

1

2

E

1

FSMW1101A

31

TPP

VR402:Rch

(Dolby NR level adj)

VR401:Rch

(Dolby NR Frequency response adj)

Arrangment of adjusting

Head amplifier board section (Reverse side)

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 assembly.

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

Disassembly method

1. Remove the bottom cover.

2. Remove the front panel assembly.

3. Remove the top cover .

4. Install the front panel.

5. Confirm that current is being carried by connecting

an extension cord jig.

Note

Available to connect to the CP701 connector when in-

stalling the front panel.

Cassette mechanism

EXTKSRT002-18P

Extension cord

EXTKSRT002-18P

to Main board

to Cassette mechanism

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KS-FX611

1-14

Item Conditions Adjustment and Confirmation methods S.Values Adjust

Head

azimuth

adjustment

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

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

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

that line B of the mirror tape runs in the

center between Lch and Rch in the forward

play mode.

Test tape:

SCC-1659

VT703(10kHz)

Test tape: VTT712

(3kHz)

Test tape: VTT724

(1kHz)

VTT739

(63Hz / 1kHz / 10kHz)

1.

Tape speed

and wow

flutter

confirmation

2.

Play back

frequency

response

confiramation

3.

1.

2.

3.

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

wow flutter meter is within 3015 3045(FWD

/ REV), and less than 0.35% (JIS RMS).

In case of out of specification, adjust the

motor with a built-in volume resistor.

1.

2.

Play test tape VTT724, and set the volume

position at 2V.

Play test tape VTT739 and confirm.

1kHz / 10kHz: -1 3dB,

1kHz / 63Hz: 0 3dB,

When 10kHz is out of specification, it will be

necessary to read adjust the azimuth.

1.

2.

3.

Load VTT724 (VT724) (1kHz) and play it

back in the reverse play mode. Set the Rch

output level to max.

Load VTT703 (VT703) (10kHz) and play it

back in 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

output level to max, with azimuth

adjustment screw C.

(The phase difference should be 45 or

more.)

When switching between forward and

reverse modes, the difference between

channels should be within 3dB. (Between

FWD L and R, REV L and R.)

When VTT721 (VT721) (315Hz) is played

back, the level difference between channels

should be within 1.5dB.

1.

2.

3.

4.

5.

Head azimuth adjustment

Tape speed:

3015

3045Hz

Wow

flutter: less

than 0.35%

Speaker out

1kHz / 63Hz

: 0 3db

1kHz / 10kHz

: -1 3db

Built-in volume

resistor

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

A line

B line

Head shield

PBHead

FWD Adj B

REV Adj C HEIGHT Adj A

phase

(0 ) (45 )

Head shield

The head is at low position

during.

The head is at High position

during REV.

Output

level:

Maximum

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4

2

9

8

0

5

1

5

1

3

6

7

3

Q

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KS-FX611

1-15

Description of major ICs

AN80T05 (IC901) : Regulator

1.Terminal layout & Block diagram

2.Pin function

Pre

Drive

Thermal

Protection

Reference Voltage

Pre

Drive

AMP

Out

ASO & Peak

Current Protection

AMP

Out

Pre

Drive Pre

Drive

1 2 3 4 5 6 7 8 9 10 11 12

ILL

10V MODE2 MODE1 STB VDD

5.6V AMP VCC ANT COM

8.7V AM

8.7V FM

8.7V GND

1

2

3

4

5

6

7

8

9

10

11

12

ILL

MODE2

MODE1

STB

VDD

AMP

VCC

ANT

COM

AM

FM

GND

10V power supply for illumination.

When 5V is input,becomes AM. and the antenna output is turned on.

When 5V is input,becomes AM. and the output of FM is switched.

When 5V is input, outputs to ILL,COM,and AMP. It is 0V usually.

5.6V power supply.

Power supply supply to remote amplifier

Back up. connects with ACC with it.

Power supply supply to auto antenna.

8.7V power supply.

The power supply of 8.7V to AM.

The power supply of 8.7V to FM.

Ground

No.

Symbol Function

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

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KS-FX611

1-16

I/O

LC72366-9985 (IC701) : System CPU

Symbol FunctionPin No.

XIN

GND

J-BUS SI

J-BUS SO

J-BUS SCK

J-BUS I/O

NC

LCD SO

LCD SCK

LCD CE

DIMMER IN

EVOL SO

EVOL SCK

NC

TUNER ILLUM

TAPE ILLUM

CD ILLUM

DEMERIT

NC

OPEN

NC

KS1

KS0

K3

K2

K1

K0

Vdd

TEST

FF/REW MODE

SEEK/STOP

MONO

RADIO/TAPE

BEEP LEVEL

PWR-CNT

ACC

KICK

I

-

I

O

-

O

-

O

-

O

I

-

I

-

I

O

-

O

-

Crystal oscillator input port

Connect to GND

Data input for J-BUS information

Data output for J-BUS information

Clock output for J-BUS information

Switching signal output for J-BUS information I/O, H:Out L:In

None connection

Data output for LCD driver

Information clock output for LCD driver data

Chip enable output for LCD driver

None connection

Data output for electrical volume

Clock output for electrical volume information

Non connection

Diode matrix output port for initial establishing

Non connection

Diode matrix output port for initial establishing

5V power supply port (+B)

Turn on all light indicator of LCD, L: All light a LED indicator

FF/REW mode select signal output

H:Auto seek, L: Stop Use both as IF count REQ and Seek/Stop

Forced monaural output port, H:Turn on Forced monaural

Non connection

"H" : Turn on power

Non connection

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

1. Pin layout

2. Pin function

24 ~ 1

41 ~ 64

25

40

~

80

65

~

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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KS-FX611

1-17

I/OPort Name FunctionPin No.

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

MOTOR

SUBMO+

SUBMO-

BEEP

TAPE IN

STANDBY

REEL

MODE

F/R

MS

SD/ST

DETACH

ENC1

ENC2

J-BUS INT

REMOCON

FM/AM

DOLBY

NC

MUTE

MEM DET

LEVELMETER

S.METER

KEY2

KEY1

KEY0

ACCDET

SENSE

AM IF COUNT

FM IF COUNT

NC

Vdd

AM OSC

FM OSC

VSS

NC

E0

TEST1

XOUT

O

-

I

O

I

-

O

-

O

I

-

I

-

I

-

O

-

O

Main motor output, H:Transport L: Stop

Sub-motor output(+), Loading direction to transport output

Sub-motor output(-), Eject direction to transport output

Non connection

Switch for detecting to input cassette, L: Cassette in

Switch for detecting standby position

Switch for detecting tape end position

Detecting mode position input

Switch for detecting forward/reverse , H:FWD L:REV

MS input port,

Station detector, Stereo signal input, H:SD

Front panel detect

Connect to encoder 1

Connect to encoder 2

Cut in signal detecting port from J-Bus information

Non connection

FM/AM mode switching signal port, H:FM L:AM

Non connection

Mute output port, L:Mute

Back-up power supply detecting port, H:input L:no input

Pressure voice level voltage input for level meter.

S meter voltage input

Key 2 input port

Key 1 input port

Key 0 input port

Hold port for Acc detecting, L: Hold mode

Voltage sensor port

Non connection

FM frequency detecting

Non connection

5V power supply (+B)

Non connection

FM limited signal input

Ground port for power supply

Non connection

Error signal output port for PLL

Test port for LSI, To connect ground

4.5MHz crystal oscillator output

LC72366-9985(2/2)

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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KS-FX611

1-18

1.Pin layout 2.Blockdiagram

1

10

30

21

CXA2559Q (IC401) : Playback equalizer amplifier with music sensor

31

32

33

34

35

36

37

38

39

40

20

19

18

17

16

15

14

13

12

11

1

2

3

4

5

6

7

8

9

10

30

29

28

27

26

25

24

23

22

21

+

-

+

-

+

-

+

-

+

-

7k/12k

300k

100k

24dB

MS MODE

BIAS

MUTE

TAPE EQ

FWD/RVS

LPF

DET

24dB

T2

X1

F2

30k

45k

F1

300k T1

F3

Vcc

MS ON/

OFF

3.Pin function

Pin No.

1

2

3

4

5

6

7

8,9

10

11

12

13

14

15,16

17

18

19

20

21

22,23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

Symbol

PBTC1

PBOUT1

OUTREF1

TAPEIN1

Vcc

NC

LINEOUT1

NC

MSLPF

G2FB

GI1FB

MSTC

MSOUT

NC

MUTESW

TAPESW

DRSW

MSMODE

MSSW

NC

LINEOUT2

DIREF

GND

TAPEIN2

OUTREF2

PBOUT2

PBTC2

PBFB2

PNRIN2

PBGND

PBFIN2

VCT

PBREF

PBFIN1

PBGND

PBRIN1

PBFB1

I/O

-

O

I

-

O

-

O

-

I

-

O

-

I

O

-

I

-

I

O

I

-

I

Function

Terminal of capacity of reproduction equalizer reproduction

Equalizer output terminal

Output standard terminal

Tape input terminal

Power supply terminal

Non connection

Line-out output terminal

Non connection

Detection LPF terminal between tunes

Detection level set terminal between tunes

Time constant connection terminal for the detection between tunes

Detection output terminal between tunes

Non connection

Mute function control terminal

Reproduction equalizer control terminal

Head change control terminal

Detection mode control terminal between tunes

Detection function control terminal between tunes

Non connection

Line-out output terminal

Resistance connection terminal for standard current setting

Earth terminal

Tape input terminal

Output standard terminal

Reproduction equalizer output terminal

Terminal of capacity of reproduction equalizer

Reproduction equalizer return terminal

Reproduction equalizer input terminal

Reproduction equalizer system earth terminal

Reproduction equalizer input terminal

Middle point terminal

Reproduction equalizer standard terminal

Reproduction equalizer input terminal

Reproduction equalizer system earth terminal

Reproduction equalizer input terminal

Reproduction equalizer return terminal

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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KS-FX611

1-19

HA13158A (IC301) : Power amp

1. Pin layout

2. Block diagram

IN1

IN2

IN3

IN4

STBY

2

1

11

13

23

10

TAB

PROTECTOR (ASO

SURGE, TSD)

INPUTBUFFER1

INPUTBUFFER2

INPUTBUFFER3

INPUTBUFFER4

AMP1

AMP2

AMP3

AMP4

MUTE

PVCC1PVCC2

INVCC

+

-

+

-

+

-

+

-

12 22

14 18 6

3

4

5

7

8

9

15

16

17

19

20

21

1 ~ 23

1 2 3 4 5 6 7 8 9 10

GND OUT1 P1 VZ IN1 IN2 VCC1 VCC2 P2 OUT2

Input Output Mode

IN1 IN2 OUT1 OUT2

Brake

0 0 0 0

1 0 1 0

0 1 0 1

1 1 0 0

CLOCKWISE

COUNTER-CLOCKWISE

Brake

LB1641 (IC402) : DC motor driver

1. Pin layout 2. Pin function

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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KS-FX611

1-20

1A

1Y

2Y

3Y

4Y

1C

2A

2C

3A

3C

4A

4C

Input Output

CA

X

Y

ZL

LLH

HH H

11C

21A

31Y

42C

52A

62Y

7GND

Vcc

4C

4A

4Y

3C

3A

3Y

( TOP VIEW )

14

13

12

11

10

9

8

1.Pin arrangement 2. Pin function

3. Block diagram

HD74HC126P (IC801) : Changer control

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

http://www.xiaoyu163.com

JVC KS-FX611 User manual

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