JVC KS-LX200R Service Manual

SERVICE MANUAL

CASSETTE RECEIVER

KS-LX200R

E EX

KS-LX200R

Area Suffix

Continental Europe

Central Europe

Contents

Safety precaution 1-2 Disassembly method 1-3 Adjustment method 1-13 Description of major ICs 1-17

78

9 11 12

KS-LX200R

OFFSEL

10

This service manual is printed on 100% recycled paper.

No.49573 Oct. 2000

1-1

KS-LX200R

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.

1-2

KS-LX200R

Disassembly method

Removing the top chassis

(See Fig.1 to 5)

1.

Remove the two screws A attaching the bottom cover to the top chassis on the bottom of the body.

2.

Remove the two screws B attaching the top chassis on both sides of the body.

3.

Remove the screw C and the three screws D attaching the heat sink on the left side of the body.

4.

Remove the two screws E and the screw F on the back of the body.

5.

Remove the two screws G on the upper side of the body.

6.

Move the top chassis upward and disconnect the cassette mechanism connector from the main board connector by pulling it. Remove the top chassis from the body.

Bottom cover

A

Fig.1

Top chassis

Heat sink

C

E

Fig.2

D

Fig.3

B

Top chassis

B

F

G

Fig.4Fig.5

1-3

KS-LX200R

Removing the main board assembly

(See Fig.6 to 8)

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

1.

Remove the screw S attaching the bracket (L).

2.

Disconnect the flexible harness from connector CN701, the card wire from CN702 on the main board and the harness from CN503 and CN504 respectively.

3.

Remove the three screws H attaching the main board assembly to the bottom cover on the upper side of the body.

4.

Remove the screw I attaching the rear panel and the bottom cover on the back of the body. Move the main board in the direction of the arrow and release the two joints a. (At this point, the main board can be removed with the rear panel and the rear heat sink.)

5.

Remove the screw J and the two screws K attaching the rear heat sink on the back of the body.

Main board assembly

CN503

H

Joint

a

CN702

Joint

Front panel assembly

Fig.6

CN504

Bracket (L)

CN701

H

S H

a

6.

Remove the two screws L and the screw M attaching the rear panel. Now, the main board assembly will be removed.

ATTENTION:

When reassembling, correctly engage the switch S561 and S562 on the main board with the part e of the operation assembly (Refer to Fig.7, 18 and 19).

Main board

L

M

S652

Fig.7

Rear heat sink

L

e

S651

J

1-4

Rear panel

K

I

Fig.8

KS-LX200R

Removing the front panel assembly

(See Fig.9 to 11)

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

1.

Disconnect the flexible harness from connector CN701 on the main board assembly.

2.

Remove the four screws N attaching the front panel assembly on both sides of the body. Remove the front panel toward the front.

Front panel assembly

Main board assembly

CN701

Front panel assembly

Fig.9

Front panel assembly

N

Removing the Front Board (See Fig.12)

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

1.

Remove the four screws O attaching the front board on the back of the front panel assembly and release the eight joints b.

O

N

CN701

Fig.10Fig.11

Joints b

O

Joints b

Fig.12

1-5

KS-LX200R

Removing the lifter unit (See Fig.13)

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

1.

Disconnect the harness from connector CN503 and CN504 on the main board.

2.

Remove the four screws P and detach the lifter unit from the bottom cover.

Removing the feed motor (L) (See Fig.14)

Prior to performing the following procedure, remove the lifter unit.

1.

Remove the washer attaching the clutch assembly and detach the clutch assembly from the shaft of the lifter unit.

2.

Remove the two screws Q attaching the feed motor (L).

Removing the feed motor (R) (See Fig.15)

Prior to performing the following procedure, remove the lifter unit.

CN503

P

Clutch assembly

CN504

P

Lifter unit assembly

Fig.13

Lifter unit assembly

1.

Remove the washer attaching the clutch assembly and detach the clutch assembly from the shaft of the lifter unit.

2.

Remove the two screws R attaching the feed motor (R).

Washer

Clutch assembly

Washer

Feed motor (L) assembly

Q

Fig.14

Lifter unit assembly

Feed motor (R) assembly

R

Fig.15

1-6

Removing the operation assembly

(See Fig.16 to 19)

Prior to performing the following procedure, remove the top chassis assembly, the front panel assembly and the lifer unit.

1.

Remove the three screws S attaching the right and left brackets which fix gears on both sides of the operation assembly.

2.

Remove the springs 5 and 6 from the operation assembly.

3.

Disconnect the card wire from connector CN702 on the main board and remove the operation assembly.

ATTENTION:

When reassembling, correctly engage the switch S561 and S562 on the main board and the right gear with the part c of the operation assembly.

Bracket (R)

S

Spring 5

Operation assembly

Fig.16

CN702

KS-LX200R

Bracket (L)

S

Spring 6

Bracket (R)

Operation assembly

S652

S651

Operation assembly

Fig.17

Operation assembly

c

S652

S651

Fig.18Fig.19

1-7

KS-LX200R

Removing the operation switch board

(See Fig.20 and 21)

Prior to performing the following procedure, remove the operation assembly.

1.

Remove the six screws T attaching the button panel on the operation assembly.

2.

Pull out the operation switch board from inside of the button panel.

TT

Button panel

Fig.20

Operation switch board

Button panel

Fig.21

Removing the cassette mechanism assembly (See Fig.22)

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

1.

Remove the four screws U and the cassette mechanism assembly from the top chassis.

U

U U

U

CD mechanism assembly

Fig.22

1-8

KS-LX200R

Disassembly method

Removing the head amplifier board

(See Fig.1)

1.

Disconnect the wire from connector CP401 on the head amplifier board.

2.

Remove the screw A.

3.

Remove the head amplifier board in the direction of the arrow to unhook two joints a.

4.

Disconnect connector CP402 on the head amplifier board from the connector board.

Removing the mechanism bracket

(See Fig.2)

Prior to performing the following procedure, remove the head amplifier board.

Connector board

A

Head amplifier board

Joints

a

Fig.1

B

1.

Remove the four screws B on the underside of the cassette mechanism assembly.

Prior to performing the following procedure, remove the head amplifier board and the mechanism bracket.

Removing the connector board

(See Fig.3)

1.

Unsolder soldering b and c on the connector board.

2.

Remove the three screws C.

3.

Remove the connector board in the direction of the arrow to unhook joint d.

C

B

C

Fig.2

Soldering

C

Mechanism bracket

b

Joint

Connector board

c

d

Fig.3

1-9

KS-LX200R

Removing the load arm assembly

(See Fig.4)

Prior to performing the following procedure, remove the connector board.

1.

Remove the slit washer e retaining the load arm assembly.

2.

Remove the spring g in the load arm assembly marked joint f.

3.

Draw out the load arm assembly from the shaft and rotate in the direction of the arrow to remove it from the cach.

ATTENTION:

The spring g comes off as the load arm assembly is drawn out from the shaft.

Load arm assembly

Holder arm

Cach

Joint

D

h

Load arm assembly

Slit washer

e

Joint

f

Load arm

assembly

Removing the sub chassis (See Fig.4)

Prior to performing the following procedure, remove the connector board and the load arm assembly.

1.

Remove the two screws D attaching the sub chassis.

2.

Draw out the sub chassis from the holder arm shaft in the direction of the arrow (marked joint h). Remove the sub chassis from the main chassis upwards.

Removing the cassette holder / holder arm (See Fig.5)

Prior to performing the following procedure, remove the connector board and the load arm assembly.

1.

Remove the screw E attaching the cassette holder / holder arm.

2.

Draw out the holder arm shaft from the sub chassis in the direction of the arrow (marked joint h).

Main chassis

Holder arm

i

Joints

Cassette holder

Fig.4

E

D

Joint

Worm gear

Sub chassis

h

Spring

g

3.

Disengage two joints i and remove the cassette holder / holder arm.

1-10

Main chassis

Cassette holder

Fig.5

Sub chassis

Removing the sub motor

(See Fig.4 and 6)

Prior to performing the following procedure, remove the connector board and the load arm assembly.

1.

Remove the slit washer j and the worm gear.

Slit washer

KS-LX200R

j

2.

Remove the two screws F.

Removing the play head / pinch roller assembly (twin set) (See Fig.7)

Prior to performing the following procedure, remove the connector board, the load arm assembly and the sub chassis.

1.

Remove the spring K retaining the play head assembly and pull out the play head assembly.

Sub motor

Pinch roller assembly

Slit washer

F

Worm gear

Fig.6

Pinch roller assembly

l

Play head

Slit washer

l

2.

Remove the two screws G.

3.

Remove the two slit washers l attaching the pinch roller assembly (twin set). Pull out each pinch roller assembly.

Spring

1

G

Spring

Fig.7

2

k

1-11

KS-LX200R

Removing the reel disc assembly (twin set) (See Fig.8 to 10)

Prior to performing the following procedure, remove the connector board, the load arm assembly, the sub chassis and the cassette holder / holder arm.

1.

Remove the two slit washers m while pushing down the reel driver on the two reel disc assemblies.

2.

Pull out the two screws I from the shaft with the reel driver and the spring respectively.

Removing the flywheel assembly (F) and (R) (See Fig.8 and 11)

Prior to performing the following procedure, remove the connector board, the load arm assembly, the sub chassis and the cassette holder / holder arm.

1.

Remove the belt from the underside of the mechanism assembly.

Soldering

Slit washers

Motor

q

m

Reel driver

Reel disc assembly

Fig.8

Slit washer

m

Slit washers

n

2.

Remove the two slit washers on the upper side of the mechanism assembly.

3.

Pull out the flywheel assembly (F) and (R) from underside of the mechanism assembly.

Removing the reel disc board

(See Fig.11)

1.

From the underside of the mechanism assembly, unsolder soldering o on the reel disc board.

2.

Unbend the joint hook p retaining the reel disc board.

3.

Remove the screw H.

Removing the motor (See Fig.8and 11)

1.

Unsolder soldering q on the motor.

2.

Remove the belt from the underside of the mechanism assembly.

Belt

Spring

Flywheel (F)

Fig.9

Fig.10

Reel driver

Reel disc

I

H

Motor

I

Soldering

Reel disc board

Joint hook

p

o

3.

Remove the two screws I from the underside of the mechanism assembly.

1-12

Flywheel (R)

Fig.11

Tab

Reel disc board

Adjustment method

KS-LX200R

Test Instruments reqired for adjustment

1.Digital osclloscope(100MHz)

2.Frequency Counter meter

3.Electric voltmeter

4.Wow & flutter meter

5.Test Tapes VT724 VT739 VT712

For wow flutter & tape speed measurement

VT703

6.Torque gauge

For playback frequency measurement

for DOLBY level measurement

For head azimuth measurement

Cassette type for CTG-N (mechanism adjustment)

Measuring conditions(Amplifier section)

Power supply voltage Load impedance

4 (2Speakers connection)

DC14.4V(10.5~16V)

Line out

Standard volume position Balance and Bass,Treble volume .Fader

20k

Tuner section

BAND STEP FM : 100kHz (Seek), 50kHz (Manual) AM : 9kHz step

Preset Memory Initialization

Preset Memory

Band

FM(MHz) AM(kHz)

M1

87.5 153

M2

89.9 216

M3

97.9 603

M4

105.9 999

M5

108.0 1404

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.

M6

87.5

1620

: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).

Arrangement of Adjusting

Cassette Mechanism Section

Capstan motor

Cassette mechanism (Surface)

Azimuth screw

Playback head

(Forward side)

Azimuth screw (Reverse side)

Tape speed adjust

1-13

KS-LX200R

Arrangment of adjusting

Head amplifier board section (Reverse side)

VR402:Rch (Dolby NR level adj)

VR401:Rch (Dolby NR Frequency response adj)

B402

E Q401

D401

B401

CP401

1

R420

1

R423

R421 R422

Q402

B409

Q403

D402

B408

FSMW1101A

VR402

C417

D403

C418

R424

IC402

R425

C419

C414

B403

B410

B404

C410

C412

C411

R413

1

C415

R416

R415

C416

R418

R419

CP403

C409

R411

B415

C413

1

11

B411

IC401

B412

17

VR401

B416

R412

R410

C405

R408

31

C407

21

C408

R417

B413

R404

B406

B414

R409

C406

R414

R407

1

B405

TPP

C404

CP402

1

R402

C401

2

R405

C403

R401

R406

R403

C402

B407

Information for using a Car Stereo service jig (for adjustment and checking)

We are advancing efforts to make our extension cords comman for all Car Stereo products. Please use this type of extension cord as follows. As a U -shape type top cover is employed,this type of extension cord needed to check operation of the mechanism assembly after disassembly. Extension cords

EXT-KSRT002-18P(18 pin extension cord)

For connection between mechanism assembly and main board assembly. Check for mechanism-driving section such as moter ,etc.

Disassembly method. (Refer to mthod to remove main parts)

1.Remove the bottom cover.

2.Remove the front panel assembly.

3.Remove the top cover. (Remove the screws at each side of heat sink and rear panel)

4.Install the front panel (whose assembly was removed in step 2) to the main unit.

5.Confirm that current is being is carried by connecting an extension cord jig. Connection diagram

1-14

EXT-KSRT002-18P

EXTLX001-16PF

EXTLX002-4P

EXTLX002-16PC

EXTLX002-SWPWB

EXTLX001-2P

EXTLX001-6PC

EXTLX001-2P

EXTLX001-6PF

Extension cord list

EXTLX002-JIG : Kit including the following 8 extension parts.

KS-LX200R

No.

1 2 3 4 5 6 7

Parts number Quantity Description EXTLX001-2P EXTLX001-6PF EXTLX001-6PC EXTLX002-16PF EXTLX002-16PC EXTLX002-SWPWB EXTLX002-4P

Besides the above kit, we offer the conventional extension cord for CASSETTE mechanism which are not essential to operation check or service. The mechanism should be directly connected to the board using the extension wire. EXT-KSRT002-18P

2 1 1 1 1 1 1

2Pin, 30cm extension cord 6Pin, 30cm flat wire 6Pin x 2, interlocking connector 16Pin flat wire 16Pin, interlocking connector 3 switch PWB 4Pin, 30cm extension cord

EXTGS004-26P

EXTLX001-16PF

EXTLX002-SWPWB

EXTLX002-4P

EXTLX002-16PC

EXTLX001-2P

EXTLX001-6PC

EXTLX001-2P

EXTLX001-6PF

1-15

KS-LX200R

Item

1.

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

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

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

2. 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

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

1-16

When VTT721 (VT721) (315Hz) is played

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

Test tape: VTT712 (3kHz)

Test tape: VTT724 (1kHz) VTT739 (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 3015 3045(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 VTT724, and set the volume

1. position at 2V.

Play test tape VTT739 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: 3015 3045Hz Wow flutter: less than 0.35%

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

Built-in volume resistor

Description of major ICs

BA4905-V3 (IC961) : Regulator

1.Pin layout

1234 56789101112

2.Block diagram

KS-LX200R

REGULATOR

EXT

RESET

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

RESET COMP VDD 5.7V CD 8V VCC AJ

EXT ACC AUDIO 9V CTRL ILM 10V GND

3.Pin function Pin no. Symbol Function

1 2

RESET

EXT output

If VDD voltage becomes 4V or less.RESET output becomes low level. This output voltage is approximately 0.5V lower than VCC. and max output current is 300mA.

3

COMP output

A voltage supply for ACC block. This output voltage is approximately

0.7V lower than VDD'S. The max output current is 100mA. 4 5

ACC

VDD output

Control of the COMP output by inputting voltage. This output voltage is 5.7V, and max output current is 100mA. This voltage supply is for microcomputer. Whenever back up voltage supply is connected, the output keeps on running.

6

AUDIO output

This output voltage is 9.0v, and max output current is 500mA. This voltage supply for AUDIO.

7

CD output

This output voltage is 8.0V, and max output current is 1A.

This voltage supply for CD. 8 9

10

CTRL

VCC

ILM output

Output selector of CD. AUDIO, ILM and EXT.

To be connected with the BACK UP of car.

This output voltage is 10V, and max output current is 500mA.

Output voltage is adjustable.

11

AJ

Putting a resistance between ILM and AJ or between AJ and GND

makes ILM output voltage adjustable.

12

GND

Ground.

Overvoltage

protection circuit

37K

5K

1-17

KS-LX200R

CXA2510AQ (IC401) : Head AMP / Dolby

1. Pin layout & Block diagram

30 PBEQ2

29 PBOUT2

28 GND

27 TAPEIN2

26 AUXIN2

PBFB2 31

PBRIN 32

PBREF2 33

PBFIN2 34

VCT 35

PBGND 36

PBFIN1 37

PBREF1 38

PBRIN1 39

PBFB1 40

VCT

F1

-

F2

120 /70

+

120 /70

T2

X1

TAPE / AUX

FWD / RVS

LPF

X1

T1

25 DIREF

24 LINEOUT2

+

NR BIAS

TAPE EQ

Vcc

+

F3

+

OFF/

-

B / C

-

23 TCH2

NR

22 TCL2

MS MODE

NR MODE

MS ON/ OFF

DET

21 MSSW

20 MSMODE

19 DRSW

18 TAPESW

17 INSW

16 NRSW

15 MRMODE

14 MSOUT

13 DGND

12 MSTC

11 G1FB

2. Pin functions Pin No.

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15

PBEQ1 1

PBOUT1 2

Symbol

PBEQ1 PBOUT1 Vcc TAPEIN1 AUXIN1 MSLPF LINEOUT1 TCH1 NC G2FB G1FB MSTC DGND MSUOT NC

Vcc 3

TCL1 9

AUXIN 5

TAPEIN1 4

MSLPF 6

TCH1 8

LINEOUT1 7

I/O

O

Resistance for selecting the equalizer amplifier time constant.

O

Playback equalizer amplifier out put. Power supply

TAPE input.

I

External input.

I

Cut-off frequency adjustment of the music sensor LPF.

Line out.

O

Time constant for the HLS.

Non connection.

Music signal interval detection level setting.

-

G2FB 10

Functions

Time constant for detecting the music signal interval. Logic ground (Connect to GND)

Music sensor output.

O

Non connection.

I

1-18

KS-LX200R

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

NRSW INSW METAL DRSW FF/REW MSSW NC TCH2 LINEOUT2 DIREF

NC TAPEIN2 GND PBOUT2 PBEQ2 PBFB2 NC PBREF2 PBFIN2 VCT PBGND PBFIN1 PBREF1 NC PBFB1

I/O

I

Dolby NR control L:NR OFF H:NR ON

I

Line amplifier input select control L:TAPE IN H:AUX IN

I

Playback equalizer amplifier control L:120us H:70us

I

Head select control L:FORWARD H:REVERSE

I

Music sensor mode control Low(open):G1 High:G2

I

Music sensor control Low(open):MS on High:MS OFF

-

Non connection

-

Time constant for the HLS

O

Line output

-

Resistance for setting the reference current (Connects 20(18)K between DIREF pin and GND for the standard setting.)

-

Non connection.

I

TAPE input.

-

To ground.

O

Playback equalizer amplifier output.

O

Resistance for selecting the playback equalizer amplifier time constant

I

Playback equalizer amplifier feedback.

-

Non connection.

O

Playback equalizer amplifier reference (Vcc/2 output)

I

Playback equalizer amplifier input (FORWARD head connected)

O

Center (Vcc/2 output)

-

Playback equalizer amplifier ground (Connect to ground)

I

Playback equalizer amplifier input (FORWARD head connected)

O

Playback equalizer amplifier reference (Vcc/2 output)

-

Non connection.

I

Playback equalizer amplifier feedback.

Functions

NJM4565M-W (IC951,IC171,IC323) : Ope amp.

V-

1

2

8

V+

7

B OUTPUT

AB

3

4

6

B -INPUT

5

B +INPUT

A OUTPUT

A -INPUT

A +INPUT

1-19

KS-LX200R

KA3031 (IC831) : Motor driver

1. Pin layout

48 ~ 37

1

36

~

12

13 ~ 24

2. Block diagram

1

IN1.2

2

OUT1

3

IN2.1

4

IN2.2

5

OUT2

6

IN3.1

7

IN3.2

8

OUT3

9

IN4.1

~

25

IN1.1 REG50 REG050 REF SVCC RES50 OPIN(+) OPIN(-) OPOUT PVCC2 DO1.1 DO1.2

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

T.S.D O.V.P

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

D

2P

2.5V

SW

+ -

+

-

+

-

+

-

+

-

+

-

+

-

+

-

+

S W

ALL MUTE

+

-

+

-

+

-

+

-

M S C

36

35

34

33

32

31

30

29

28

DO2.1

DO2.2

PGND3

DO3.1

DO3.2

PGND2

PGND1

DO4.1

DO4.2

1-20

IN4.2

OUT4

CTL1

10

11

12

S W

MUTE4 MUTE3 MUTE2 MUTE1

+ M S C

D

-

D

2P

13 14 15 16 17 18 19 20 21 22 23 24

FWD1 REV1 CTL FWD2 REV2 SGND MUTE1 MUTE2 MUTE3 MUTE4 PVCC1 DO6.2

27

26

25

DO5.1

DO5.2

DO6.1

3. Pin function

Pin No. Symbol I/O Function Pin No. Symbol I/O Function

1 2 3 4 5 6 7 8

9 10 11

12 13

14 15

16 17 18 19 20 21 22

23 24

IN1.2

OUT1

IN2.1 IN2.2

OUT2

IN3.1 IN3.2

OUT3

IN4.1 IN4.2

OUT4

CTL1

FWD1 REW1

CTL2

FED2 REW2 SGND

MUTE1 MUTE2 MUTE3 MUTE4

PVCC1

DO6.2

I

CH 1 op-amp input (-) CH 1 op-amp output

O

CH 2 op-amp input (+)

I

CH 2 op-amp input (-)

I

CH 2 op-amp output

O

CH 3 op-amp input (+)

I

CH 3 op-amp input (-)

I

CH 3 op-amp output

O

CH 4 op-amp input(+)

I

CH 4 op-amp input (-)

I

O

CH 4 op-amp output CH 5 motor speed

I

control CH 5 forward input

I

CH 5 reverse input

I

CH 6 motor speed

I

control CH 6 torward input

I

CH 6 reverse input

I

Signal ground

CH 1 mute

I

CH 2 mute

I

CH 3 mute

I

CH 4 mute

I

Power supply voltage

-

(For CH 5, CH 6) CH 6 drive output

O

25 26 27 28 29 30 31 32 33 34 35

36 37

38 39 40

41 42 43 44 45 46

47 48

DO6.1 DO5.2 DO5.1 SO4.2 DO4.1 PGND PGND DO3.2 DO3.1 PGND DO2.2

SO2.1 SO1.2

DO1.1

PVCC2

OPOUT OPIN(-)

OPIN(+)

RES50

SVCC

REF

REG050

REG50

IN1.1

O

CH 6 drive outout CH 5 drive output

O

CH 5 drive output

O

CH 4 drive output

O

CH 4 drive output

O

Power ground Power ground

CH 3 drive output

O

CH 3 drive output

O

Power ground CH 2 drive output

O

CH 2 drive output

O O

CH 1 drive output

O

CH 1 drive output Power supply voltage

-

(For CH 1, CH 2, CH 3, CH 4) Opamp output

O

Opamp input (-)

I

Opamp input (+)

I

Regulator 5V reset

I

Signal supply voltage

Bias voltage input

I

regulator 5V output

O

Regulator output

O

CH 1 opamp onput (+)

I

KS-LX200R

BU4066BCF-X (IC322) : Switch

1.Pin l ayout 14 13 12 11 10 9 8

1 2 3 4 5 6 7

2.Block diagram

VDD

14 13 12 11 10 9 8

1 2 3 4 5 6 7

I/O 1

C1

O/I 1

C4

O/I 2

I/O 4

I/O 2

O/I 4

C2

O/I 3

C3

I/O 3

VSS

1-21

KS-LX200R

UPD784215AGC113 (IC701) : UNIT CPU

1.Pin layout

75 ~ 51

76

~

50

~

100

1 ~ 25

26

2.Pin function Pin No. Symbol I/O Function

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

FF/REW

DOLBY

MS-OUT

F/R

HOLD

TRAYCNT

DIMMER-OUT

LCD-POWER

VDD

X2 X1

VSS

XT2 XT1

RESET

SW1

BUS-IN

PS2

CURUISE

RDS-SCK

RDS-DA

REMOCON

AVDD

AVREF0

NC

NC KEY0 KEY1 KEY2

LEVEL

SQ

S.METER

AVSS

W-VOL

DOT CONT

AVREF BUS-SI

BUS-SO

BUS-SCK

STAGE2 LCD-DA

LCD-CL LCD-LEI BUZZER

E2PR-DA-I

E2PR-DA-O

E2PR-CLK

BUS-I/O

TM0 TM1

I/O I/O

Output for input signal level switching for MS.

O

Dolby on "H" output.

O

MS output.

O

Fwd, REV direction switch signal input.

I

Non connect

Tray light control signal output.

O

Dimmer signal output.

O

Non connect.

Power supply terminal.

Connecting the crystal oscillator for system main clock.

O

Connecting the crystal oscillator for system main clock.

I

Connect to GND.

Connecting the crystal oscillator for system sub clock.

O

Connecting the crystal oscillator for system sub clock.

I

System reset signal input.

I

Cassette mechanism detect switch.

I

J-BUS signal cut in input.

I

Power save 2.

I

CRUISE signal input.

I

RDS selial clock input.

I

RDS data input.

I

Remove control signal input.

I

Power supply terminal.

Connect to GND.

Key control 0 input.

I

Key control 1 input.

I

Key control 2 input.

I

Level meter signal input.

I

S.quality level input.

I

S.meter level input.

I

Connect to GND.

Woofer volume signal output.

O

Dot contrast signal input.

O

Power supply terminal.

J-BUS data I/O terminal. J-BUS data output.

O

J-BUS serial clock signal I/O. Initial setting.

I

Data output for LCD driver.

O

Clock otput for LCD driver.

O

Chip enable 1 output for LCD driver.

O

BUZZER control signal output.

O

Data input terminal from EEPROM.

I

Data output terminal from EEPROM.

O

Data input terminal from EEPROM. J-BUS I/O signal terminal. Tray motor negative signal output.

O

Tray motor positive signal output.

O

1-22

Pin No. Symbol I/O Function

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 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

100

DM0 DM1

ST

LOCAL

MONO CA-SW1 CA-SW2 CA-SW3 CA-SW4 CA-SW5

VCR-CONT

AFCK

SEEK/STOP

SD

FM/AM PLL-CE PLL-DA PLL-CK

BAND IN

TEL-MUTE

AMP KILL

VSS

DIMMER-IN

DSI

POWER

CD-ON

MUTE W-LPF1 W-LPF2

W-MUTE

VDD

VOL-DA

VOL-CLK

CF-SEL

NC LCD RST LCD-CE2

DMK

TMK

STAGE1

MOTOR

MODE

STANDBY

TEST

TAPE-IN

SUBMO-

SUBMO+

TAPE-END

KICK

VOICE IN

Door motor negative signal output.

O

Door motor positive signal output.

O

Stereo signal input.

I

Non connect.

Manual ON/OFF select signal output.

O