JVC KS-LX200R User Manual 2

SERVICE MANUAL

CASSETTE RECEIVER

KS-LX200R

E
EX

KS-LX200R

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.

COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.

No.49573
Oct. 2000

1-1

Description of major ICs

BA4905-V3 (IC961) : Regulator

1.Pin layout

1234 56 78 9101112

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

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

Pin

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

D

2P

2P

2P

2P

2P

2P

2P

2P

2P

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

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

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.

­Connect to GND.

­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

DOOR/TRAY open/close detect switch signal input.

I

DOOR/TRAY open/close detect switch signal input.

I

DOOR/TRAY open/close detect switch signal input.

I

DOOR/TRAY open/close detect switch signal input.

I

DOOR/TRAY open/close detect switch signal input.

I

Non connect.

­AF check output.

O

AUTO SEEK/STOP select signal output.

O

Station detector input.

I

FM/AM select signal output.

O

Chip enable signal output.

O

Data output.

O

Clock signal output.

O

AM detect signal input.

I

Telephone.

I

Non connect.

­Connect to GND

­DIMMER signal input.

I

Power save 1.

I

Power ON/OFF select signal output.

O

Non connect.

­Mute signal output.

O

Woofer LPF 1 signal output.

O

Woofer LPF 2 signal output.

O

Woofer mute signal output.

O

Power supply.

­Data output.

O

Clock signal output.

O

CF select signal input.

I

Non connect.

­LCD reset signal output.

O

Chip enable 2 output.

O

Motor speed control signal output.

O

Tray motor control signal output.

O

Initial setting.

I

Mecha Motor signal output.

O

Mecha mode position detection input.

I

Standby position derection input.

I

Test terminal

I

Cassette in detection input.

O

Sub motor clock direction drive output.

O

Sub motor clock oppositte direction drive output.
Tape end detection input.

I

Kick output.

O

Voice control signal input.

I

KS-LX200R

1-23

KS-LX200R

BD3860K (IC911) : E. volume

1. Pin layout
33 ~ 23

34

22

44

2. Block diagram

GND FIL VCC SEL1

6 5 9 40 36 35 343328323130 2919 15 14

POWER
SUPPLY

A1

41

B1

42

C1

43

D1

44

INPUT

1
2
3
4

SELECTOR

A2

B2

C2

D2

~

1 ~ 11

INPUT
GAIN

0 to 18 dB

INPUT
GAIN

0 to 18 dB

~

12

VIN1 LOUD1 HF1 LF1 DET1 TIN1 TNF1 BNF1

MAIN
VOLUME
0 to -40 dB
LOUDNESS

MAIN
VOLUME
0 to -40 dB
LOUDNESS

LOW(f=50Hz) 6dB
PROCESS CONTROL +3 to 12dB
(f=10kHz)

LOGIC

LOW(f=50Hz) 6dB
PROCESS CONTROL +3 to 12dB
(f=10kHz)

TREBLE

-14 to +14dB

TREBLE

-14 to +14dB

-14 to +14dB

-14 to +14dB

BASS

BASS

BOUT1VCA1 MIX1 BBOUT1

FADER
CH1 FRONT
0 to -5 dB

FADER
CH1 REAR
0 to -5 dB

FADER
CH2 REAR
0 to -5 dB

FADER
CH2 FRONT
0 to -5 dB

13

12

10

11

7
8

OUTF1

OUTR1

SI

SC

OUTR2

OUTF2

3. Pin function

Pin

Symbol Function

No.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22

A2
B2
C2
D2

FIL

GND

SC

VCC

OUTR2

OUTF2

OUTR1

OUTF1

BOUT1

BNF1

BOUT2

BNF2
TNF2
TNF1

TIN2

BBOUT2

MIX2

CH2 input terminal A
CH2 input terminal B
CH2 input terminal C
CH2 input terminal D
1/2 VCC terminal
Ground terminal
Serial data input terminal

SI

Serial clock input terminal
Power supply
CH2 rear output terminal
CH2 front output terminal
CH1 rear output terminal
CH1 front output terminal
CH1 bus filter setting terminal
CH1 bus filter setting terminal
CH2 bus filter setting terminal
CH2 bus filter setting terminal
CH2 treble filter setting terminal
CH1 treble setting terminal
CH2 treble input terminal
CH2 BBE II signal output terminal
CH2 output mix amp negative input terminal

39 38 37 25 24 26 23 22 21 20 18 17 16

Pin

Symbol Function

No.

23
24
25
26
27
28
29

BBOUT1

30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

VCA2

LF2

HF2

DET2
DET1

TIN1

MIX1

VCA1

LF1

HF1

LOUD1

VIN1

LOUD2

VIN2
SEL2
SEL1

CH2 high frequency VCA output terminal
CH2 low frequency filter setting terminal
CH2 high frequency filter setting terminal
CH2 high frequency attack release time setting
Non connect

NC

CH1 high frequency attack release time setting
CH1 treble input terminal
CH1 BBE II signal output terminal
CH1 output mix amp. negative input terminal
CH1 high frequency VCA output terminal
CH1 low frequency filter setting terminal
CH1 high frequency filter setting terminal
CH1 loudness filter setting terminal
CH1 main volume input terminal
CH2 loudness filter setting terminal
CH2 main volume input terminal
CH2 input gain output terminal
CH1 input gain output terminal
CH1 input terminal A

A1

CH1 input terminal B

B1

CH1 input terminal C

C1

CH1 input terminal D

D1

BOUT2BNF2TNF2TIN2BBOUT2MIX2VCA2DET2LF2HF2LOUD2VIN2SEL2

1-24

LA3460M-X (IC31) : FM noise canceller & Stereo MPX demodulator

1. Pin layout

24 13

112

2. Block diagram
24 23 22 21 20 19 18 17 16 15 14 13

KS-LX200R

123456789101112

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

DRIVER

HPF LPF

TRIG

AGC

GATE

PC

PD

LPF

Function Description

Noise sense

Noise sensitivity adjustment
Noise AGC
Gate time
Signal hold
Pilot output
Vcc
Capacitor for HCC
SNC control
HCC control

Vcc=+8.0V

High pass filter

Stereo noise controlled voltage

High cut controlled voltage
Lch output
Rch output
Pican input
Pican output

pilot cancel signal input

pilot cancel signal outpt
Separation ADJ
NC
NC
456kHz OSC
Phase comp LPF (+)
Phase comp LPF (-)

Ceramic resonator

Phase comparator low pass filter

Phase comparator low pass filter
GND
PLL input
Stereo indicator
Composite input

Phase locked loop signal input

Active low

Composite signal input
Pilot det LPF

LPF

SCHMIT

HCC

VCO

FF

MAIN

CONTROL

VCO STOP

PACAN

SEPARATION

ADJ.

SUB

ANTI-BRIDGE

DECODER

SNC

1-25

KS-LX200R

LA4743B (IC941) :Power amp

1.Terminal layout

TAB

GND1

OUTFR+

STBY

OUTFR-

1 2 3 4 5 6 7 8 910111213141516171819202122232425

2.Block diagram

VCC1/2

OUTRR+

GND2

OUTRR-

VREF

INRR

INFR

SGND

INFR

INRL

ONTIME

OUTRL+

GND3

OUTRL-

VCC3/4

OUTFL+

MUTE

OUTFL-

GND4

NC

206

VCC3/4

VCC1/2

3.Pin function

Pin
No.

1
2
3
4
5
6
7
8

9
10
11
12
13

OUT 1+

7

9

+

-

+

-

11

IN 1

Symbol Function

TAB
GND1
RFO­STBY
RFO+
VCC1/2
RRO­GND2
RRO+
R.F
RRIN
RFIN
SGND

1

TAB

Header of IC
Power GND
Output (-) for front Rch
Stand by input
Output (+) for front Rch
Power input
Output (-) for rear Rch
Power GND
Output (+) for rear Rch
Ripple filter
Rear Rch input
Front Rch input
Signal GND

8

Protective

circuit

OUT 2+

5

+

-

PWR GND1

OUT 1-

OUT 2-

3

-

+

12

IN 2

PWR GND2

2

Stand by

switch

4

ST BY

Pin
No.

14
15
16
17
18
19
20
21
22
23
24
25

OUT 3-

19

-

Protective

-

25

N.C

PWR GND3

18

circuit

MUTE

22

OUT 3+

17

+

Mute

circuit

+

Ripple

filter

10

R.F

Symbol Function

LFIN
LRIN
ONTIME
LRO+
GND3
LRO­VCC3/4
LFO+
MUTE
LFO­GND4
NC

15

IN 3

Front Lch input
Rear Lch input
Power on time control
Output (+) for rear Lch
Power GND
Output (-) for rear Lch
Power input
Output (+) for front
Muting control input
Output (-) for front
Power GND
Non connection

OUT 4-

OUT 4+

21

23

+

-

-

+

13

PRE GND

14

IN 4

PWR GND4

24

Muting &

on time control

circuit

16

ON TIME

1-26

LC75873NW (IC601) : LCD driver

1.Block diagram

COM3

COM2

COM1

S68

S67

S5

S4/P4

S3/P3

S2/P2

S1/P1

KS-LX200R

VDD1
VDD2

INH

OSC

VDD

VSS

COMMOM

DRIVER

CLOCK
GENERATOR

SEGMENT DRIVER

SHIFT REGISTER

ADDRESS

DETECTOR

2.Pin functions
Pin No. Symbol Description

1~66

67~69

70
71

S3~S68

COM1~3

VDD

VDD1

I/O

Segment Output.

O

Common Driver Output.

O

Power Supply Connection.

­Used for applying the LCD drive 2/3 bias voltage externally.

I

Must be connected to VDD2 when a 1/2 bias drive scheme in used.

72

VDD2

Used for applying the LCD drive 1/3 bias voltage externally.

I

Must be connected to VDD1 when a 1/2 bias drive scheme in used.

73
74

VSS
OSC

Power supply connection.

­Oscillator connection. An oscillator circuit is formed by connecting an

I/O

external resistor and capacitor to this pin.

75
76
77
78
79
80

INH

CE

CLOCK

DI
S1
S2

Display off control input.

I

Chip enable input.

I

Synchronization clock input.

I

Serial data input.

I

Signal output.

O

Signal output.

O

1-27

KS-LX200R

BA3220FV-X (IC301) : Driver

1. Pin layout & Block diagram

CL- LGND OUTL OUTR RGND CR - CR +

1314

REFL REFR

1112 9 810

FILTER

CL+ Vcc INL NFL FIL NFR INR

2. Pin function

Pin

Symbol Function

No.

1

CL+
2
3
4

NFL
5
6

NFR

7

INR
8

CR+

9

CR-

10

RGND

11

OUTR

12

OUTL

13

LGND

14

Vcc
INL

FIL

CL-

2143675

Powe supply terminal for amp.
power supply terminal.
input terminal.
Negative feedback terminal.
Filter terminal.
Negative feedback terminal.
Input terminal
Power supply terminal for amp.
Output terminal of internal amp.
Rch GND terminal.
Rch output terminal.
Lch output terminal.
Lch GND terminal.
Output terminal of internal amp.

1-28

BR24C32F-X (IC703) : EEPROM

KS-LX200R

1. Pin layout

2. Block diagram

A0 1

A1 2

A2 3

Vcc WP SCL SDA

A0

A1 A2

GND

32k bit EEPROM ARRAY

12bit

ADDERESS
DECODER

CONTROL LOGIC

SLAVE/WORD

12bit

ADDRESS REGISTER

START

STOP

ACK

8bit

DATA
REGISTER

8 Vcc

7 WP

6 SCL

GND 4

3. Pin function

HIGH VOLT AGE GEN.

Vcc LEVEL DETECT

Pin No. I/O Functions

Vcc

GND

AO,A1,A2

SCL

SDA

WP

-

Power supply

-

Ground (0V)

IN

Slave address set

IN

Serial clock input

I/O

Slave and word address/Serial data output

IN

Write protect input

5 SDA

1-29

KS-LX200R

SAA6579T-X (IC51) : RDS demodulator

1. Pin layout 2. Pin function

1
2
3
4
5
6
7
8

16
15
14
13
12
11
10

9

Pin

Symbol Function

No.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

QUAL

RDDA

Vref

MUX
VDDA
VSSA

CIN

SCOUT

MODE

TEST
VSSD
VDDD

OSCI

OSCO

T57

RDCL

Quality indication output
RDS data output
Reference voltage output (0.5VDDA)
Multiplex signal input
+5V supply voltage for analog part
Ground for analog part (0V)
Sub carrier input to comparator
Sub carrier output of reconstruction filter
Oscillator mode / test control input
Test enable input
Ground for digital part (0V)
+5V supply voltage for digital part
Oscillator input
Oscillator output
57kHz clock signal output
RDS clock output

3. Block diagram

57kHz

BAND PASS

(8th ORDER)

COSTAR LOOP
VARIABLE AND
FIXED DIVIDER

CLOCK

REGENERATION

AND SYNC

RECONSTRUCTION

MUX

SCOUT

CIN

VDDA

Vref

ANTI-

4

ALIASING

FILTER

8

7

CLOCKED

COMPARATOR

5

3

REFERENCE

VOLT AGE

Vp1

6

IC-PST600M/G/-W (IC702) : System reset

FILTER

OSCI OSCO VDDD

13 14 12

OSCILLATOR

AND

DIVIDER

BIPHASE

SYMBOL

DECODER

TEST LOGIC AND OUTPUT

SELECTOR SWITCH

91011

QUALITY BIT
GENERA TOR

DIFFERENTIAL

DECODER

VSDDTESTMODEVSSA

16

15

1

2

QUAL

RDDA

RDCL

T57

1-30

Co1

OP1

1

3

2

IN

Vout

OUT

HD74HC126FP-X (IC771) : Buffer

KS-LX200R

1. Pin layout

1
2
3
4
5
6
7

3. Block diagram

Input

14

13

12

11

10

9
8

Vcc Vcc

1A
2A
3A
4A
1C
2C
3C

See Function Table

4C

2. Pin function

Output

1Y

2Y

Output

2Y

Output

3Y

Output

4Y

Inputs Outputs
C

A

L

X

H

L

H

H

Y
Z
H
L

1k

CL

1k

Sample as Load Circuit 1
Sample as Load Circuit 1

Sample as Load Circuit 1

S1

RPM6938-SV4 (IC602) : Remote control receiver

AGC

AMP

I/V
conversion

PD

magnetic shield

BPF

for
trimming
circuit

Detector

Vcc

Comp

Vcc

22k
ohm

Rout

GND

1-31

KS-LX200R

M5282FP-XE (IC321) : E. volume

1. Pin layout

1
2
3
4
5

3. Pin function

Pin

Symbol Function

No.

1

Vcc/2

2

Amp+IN

3

Amp-IN

4

Amp OUT

5

GND
6
7

VCA IN
8
9

VCA OUT

10

NC

Vc

Vcc

2. Block diagram

10

9
8
7
6

1

2
3

10

457

Vcc/2 output for microphone amp.
Microphone amp. positive input terminal.
Microphone amp. negative input terminal.
Microphone amp. output terminal.
Ground.
Non connection.
VCA input terminal.
VCA control terminal.
VCA output terminal.
Power supply.

9

8

LB1641 (IC402) : DC Motor driver

1. Pin layout

1 2 3 4 5 6 7 8 9

GNDOUT1 P1

VZ IN1 IN2

2. Pin function

Input Output

IN1 IN2 OUT1 OUT2

0 0 0 0
1 0 1 0
0 1 0 1
1 1 0 0

VCC1

VCC2 P2

10

OUT2

Mode

Brake

CLOCKWISE

COUNTER-CLOCKWISE

Brake

1-32

Block diagram

KS-LX200R

6

M

5

M

4

3

2

1

CP401 CP402

STANDBY,TAPEEND

Lch,Rch
HEAD COMMON

MODE,F/R,TAPE IN

SUBMO

LCD1

COM1~3

S1~S86

LCD DRIVER

MOTOR

DRIVER

IC601

Lch,Rch

IC401

HEAD AMP

IC402

IC603

REMOCON

LCDRST,LCDCE1
LCDCL,LCDDA

MSOUT
NRSW
FF REW

SUBMO

LED &

KEY MATRIX

REMOCON

KEY

MATRIX

KEY1
KEY2
RESET

TRAY

MOTOR
M

DOOR

MOTOR

M

CN703

CP403

CN631

CN601

CN504 CN503CN702 CN701

RDS

IC51
RDS

TAPE.L
TAPE.R

SUBMO ,TAPE IN
STANDBY,MODE
MOTOR,FF REW
DOLBY,MSOUT,F/R

KEY0,KEY1

REMOCON,KEY1
KEY2,LCDCA
LCDCL,LCDCE1

TRAY

DRIVER

DOOR

TU1

TUNER PACK

FM/AM

S.METER

SD/ST

PLLCE

PLLDA

PLLCL

TM0
TM1
DM0
DM1

IC831

FMDET.ADJ
SEPA.ADJ

IC701

CPU

SCL
SDDA

ST

VOLDA
VOLCLK

W.VOL

IC703

EEPROM

DOTCONT

IC951

OPE.AMP.

BLOCK

SI/SO
SO,I/O
BUSINT
BUSSCK

EACH

IC961

REG.

IC31
MPX

L-ch
R-ch

CN901

IC911

E.VOL.

WLPF1
WLPF2

IC771

JVC-BUS

FRONTL
FRONTR
REARL
REARR

LOUTFL
LOUTRR

ROUTFL
ROUTRR

IC321

E.VOL

IC322

SWITCHING

SCK,SI/SO

IC323

OPE.AMP.

WOOFER

OUT

IC301

Lch LINE

AMP.

IC401

Rch LINE

AMP.

AU.L
AU.R

CH.L
CH.R

INFL
INRL

FRONTL
FRONTR

INFR
INRR

REARL
REARR

IC901

POWER AMP.

IC171

LINE IN

AULI
AURI

CN771
CD-CH

LINE OUTLINE INSUB

BC

DE

F

G

HA

I

2-1

Standard schematic diagrams

Main amp. section

TU1

4.7K

Q12
UN2211

10K

R25

TAPE.L

TAPE.R

SW14V

MSOUT
DOLBY
FF/REW
MOTOR

MODE
STANDBY
TAPE-IN

SUBMO­SUBMO+

TAPE-END

KICK

CASW1
CASW2
CASW3

TRAY-

TRAY+

DOOR+
DOOR-

CASW4
CASW5

TRAY10V

REMOCON

GND

2SB709A

R14

10K

R23

C24

0.1

R24

C23

0.0047

GND

F/R

KEY0
KEY1

RESET
ACC5V

10V

KEY1
KEY2

DOT
LCDDA
LCDCL

LCDCE1

14V

QAN0009-001Z

Q791
UN2211

J1

Q13

47K

R15

Q22

2.2K

DMK
TMK

QAU0157-002

QAM0105-002

D11

MA152WK

3.3K

47K

R21

C22

2SC2412K

0.01

47K

R22

C712

0.047

C719

470P

TAPE-END

Q21
2SC2412K

C21

UN2211

KICK

L1

PP4

2SD601A

330P

VDD5V

R43

Q33

UN2111

R28

Q24

SUBMO+

4.7u

R45
47K

Q34

68K

W-LPF1
W-LPF2
W-MUTE

VOL-DA
VOL-CLK
CFSEL

MOTOR
MODE
STANDBY

TAPE-IN
SUBMO-

47K

47K

R784

R783

1SS355

1SS355

D1

D2

R42

100K

1K

R44

UN2211

D31

1SS355

MUTE

UPD784215GC-XXX

R766

R767
R758

R740

47K

47K

47K

47K

R786

R785

R787

R788

BUZZER

TRAY10V

Q702

2SB815

Q701

UN2211

100P

R1

SEEK

IFBW

C10

1SS355

0.01

22/16

22/16

0.047

C4

C3

C2

C1

1/50

C44

C43 C457

470

1/50

C42

1M

R41

UN2111

Q31

IC31

LA3460

R37

2.2K

Q32

47K

R789

18K

0.47/50

1/50

C45

C32

R38

47K

R739

IC701

VDD

2.2K

330
330

47K

R742

10K

R743

47K

R746

47K

47K

VPP

47K

R747

R790

47K

R748

47K

R749

47K

R750

X1

10V

1K

R794

R793

0

6

R11

Q11

8.2( 1/8W)

2SB815

47K

CN703

CN504

CN503

CN702

FM/AM

S.METER

SQ

C25

S651
S652
S653

R27
470

0.47/50

R12

R26

15K

2SC2412K

R13

Q23

5

4

CN704

QGA1201C2-04X

3

NSW0120-002X
NSW0120-002X
NSW0120-002X

QGA2501F1-02

QGA2501F1-02

QGF0501F1-06X

2

CN701

QGF0503C1-16V

1

PP1

UDZS5.1B-X

D702

D703

1K

R791

BZ791

C791

0.1/50

KS-LX200R KS-LX200R

R3
10

Q1

10K

0

SD

D3

0.047

R2

100K

VR1 C9

R40

5.6K

1/50 0.0047

C39

0.1/50

C41

0.01

R34

2.2K

470K

12K

0.001

C33

R33

R31

R32

C34

0.01

C31

PON

DIMIN

ACC5V

10K

R738

FF/REW

DOLBY

MSOUT

F/R

HOLD

C705

C11

3.9K

0.0068

R47

TELMUTE

470P

220/10

C40

1/50

22/16

C35

C713

IFBW

2.2K

R765

C5

C36

0

PLLCK

DIMOUT

220/6.3

C6

CF31

0.0015

R35

2.2K

R764

PLLDA

2.2K

R763

C704

PLLCE

PLLCK

AMAF

C8

0.1

0.047

0.018

C7

50K

QAX0605-001

VR31

C38

0.047

68K

R36

0.015

0.015

33K

C201

C101

Q36
UN2211

VSS

PLLCE

FM/AM

10K

47K

2.2K

R761

R757

R762

820

R702

X701R4X702

QAX0617-001

8P

27P

C703

PLLDA

C55

R101
10K
R201
10K

C46

2SB709A

SEEK

1K

10K

R736

R751 R737

47K

R701

27P

C702

560P

22K

R39

C37

1/16

Q35

R46

10M

C701

C56

0.01

47/6.3

C54

C53

0.01

MA152WK

D201

MA152WK

68K

CASW3

CASW5

CASW4

SW1

BUSINT

47K

QAX0445-001

R703

22P

UN2211

C57

0.022

R53

X51

47P

C52

D101

CASW2SDCASW1

47K

RESET

R704

PP2

CFSEL

2.2/50
R54

R52

2.2k

QAX0263-001

82P

C51

22K

R202

10K

R730

RDSSCK

RDSDA

RDSDA

2.2k

2.2k

RDSSCK

R51

AMAF

680P

22K

C202

R102

R728

REMOCON

100

REF

10K

DM1

IC51

680P

C102

DM0

SAA6579T

R735
R734
R733
R732
R731

R768

MA152WK

C354

0.1
R355

220K

0.1

C356

10/16

IC703

C711
470P

R723

1K

10K

BUZZER

LCDCE1

0.0022

0.0022

IC702
PST600MG

R706
10K

10/6.3

C708

R455

220K

C951

14V

LCDCL
LCDDA

C723

IC951

NJM4565M

KEY2
KEY1
KEY0

R709
R708
R707

C355
470P

C456

0.1

BR24C32F

4.7K

4.7K

4.7K

220K

R211

10/16

AU.L

DOTCONT

TD

RD

R752
47K

W-VOL

S.METER

LEVEL

R111

SQ

R354

6.8K
C352

0.01

C454

R454

6.8K
C455

470P

C112

R118

CH.L

100

4.7/10

0

R119

TAPE.L

1/50

R120

C104

10K

C212

R218

CH.R

100

4.7/10

0

R219

TAPE.R

10K

R220

1/50

GND

C204

0.22/50

C103

0.22/50

C203

5.6K1K

R953

TH951

NAD0021-103X

DOT

R952

TM1

TM0

9V

4.7K

4.7K
47K
47K
47K

270

270

R725

R724

R722

R721

10K
330

R720

1.8uH

R719

1.8uH

R718

4.7K

R717

4.7K

R716

4.7K

R715

10K

R714

10K

R713

R712

10K

R711

10K

R710

10K

0.0022

C724

RESET

R705

C722

47K

D711

0.01

1SS355

C707

CRUISE

47K

C120

1M

470P

0.047

0.1

10/16

C353

C119

C118

C351

R353

D111

220K

2.2K

2.2K

R911

R954

10K

AU.R

C952

L701

C710

220/10

I/O

BUSSCK

SI/SO

DOTCONT

R912

47/16

C914

C911

10/16

R951

5.6K

47u

MUTE

SO

DIMIN

R987

TELMUTE

Q986

UN2211

R779

0.047

47K

SI/SO

47K

AU.L

AU.R

4.7/25

UN2111

R776
100k

R777
22K

R778

100

0.01

0.1

0.1

C451

C452

C913

C218

0.047

C357

C458
C358

220k

R451

220k

R452

C912

100/10

R177
1K

R176
10k

C175

C174

0.022

47/6.3

R276

10k

R277

1K

Q979

Q977

UN2111

D980

C978

R986

C986

SO

47/6.3

1K

I/O

1SS355

D986

MA152WA

0.1

HD74HC126FP

C977

D978

UDZ11B

47k

R984

Q983

2SD601A

C982

TEL

R775

10k

IC771

0.0047

0.22

0.22

R275

47/16

10/16

R161

C459

C359

D451

MA152WK

10k

2SB709A

10K

R985

ILL

C161

1/50

47K

IC911
BA3860K

C220

C219

0.22

0.22

R175
10k

Q965

Q964

UN2211

R965

R774

100

C771

R163

R164

220K

R351

D351

R458

R358

R340

R964

2.2K

0.047

R162
12K

180K

22K

470P

10/16

Q966

2SB709A

47k

Q963
UN2213

R781

330

470K

BUSINT

R773R772

3.3K

3.3K

220K

R352

MA152WK

C321

10/16

R174

R173

IC171

NJM4565M

R273

R274

D963

MA152WA

R782

22k47K

IC831

KA3031

Q161
2SD601A

8.2K

8.2K

8.2K

8.2K

R971

BUSSCK

100K

R165

390

VOL-CLK
VOL-DA

R970
12K

39K

SCK

CD8V

C163

D161

1SS355

0.047

C173
22/6.3
C172
10/16

C272
10/16

C273

22/6.3

5V

270K

1SS355

0.22/50

D162

R167

1K

R166

LEVEL

C164

22/16

C162

100k100k

R172R272

9V

14V

CD8V

W-VOL

W-LPF2

W-LPF1

W-MUTE

IC961

0.01

C966

IC321

Q321
UN2211

10/16

C969

M5282FP

R326

ACC5V

C305

4.7/25

C306

4.7/25

C405

4.7/25

C406

4.7/25

C322

R322

10K

C335

IC322

Q322
UN2211

BA4905

22/16

220/10

220/10

C967

C965

C964

TRAY+

2.2/50

BU4066

TRAY-

0.01

PON

DOOR-

R834

24K

4.7/25
R301

C301

C303

R302

C302

4.7/25
R305

150K

4.7/25

R401

24K

C401

C403

C402

R402

4.7/25

24K

R405
150K

R323

10K

10K

R324
100K

C325

2.2/50

C324

10/16

0.0056
C331

47K

R333

R342

R341

1M

1M

C334

C333

0.033

120K

R975

22/16

C971

10V

D00R+

R832

3.9K

24K

0.027

TH981

R981

4.7K

47/16

47/16

C323

R332

C332

IC301

IC401

47/16

100K

R325

R344
1M

0.027

NAD0021-103X

47K

Q981
UN2111

CD8V

0.01

100/10

C831

C832

DM0
DM1
DMK
TM0
TM1
TMK

R831

4.7K
R833

3.3K

R303

R304

R403

IC323

NJM4565M

R329

0

100K

C330

R334

47K

SW14V

Q991

2SA1706/ST/-T

R994

Q992

UN2211

33K

BA3220FV

33K

33K

BA3220FV

R404

33K

R343

1M

Q324

UN2211

Q982
UN2211

DIMOUT

R992

1K

R993

C307

100/10

4.7/25

C308
C309

4.7/25
C310

100/10

C407

100/10

C408

4.7/25
C409

4.7/25

C410

100/10

C327

R327

0.082

5.6K
R328

15K

C329

47K

18K

100K

R331

D962

CRS03-W

CRS03-W

D701

R963 R962

R335

4.7K

R337

D332

MA152WK

Q325

UN2111

TEL
ILL

MUT

AU.LI
AU.G
AU.RI
SUBW
GND

4.7K 9.1K

GND

SCK
CH.L

SI/SO

CH.R

C328

0.0068

R330

0.012

R321

1K

AU.LI

AU.G

AU.RI

PON

MEMORY

47K

10K

R991

820

D967

2.2/50

R336

Q323

47K

R141

47K

SUBW

2SD1048

GND

CRS03-W

C968

0.047

C336

C117

47K

R142

47K

R241

0.1
R976

470

R178

R338
100
R339
100

0.1

82K

82K

R143

R144

C142

47K

47K

1/50

R146

R145

47K

47K

47K

R245

R246

R242

82K

R244

MUT

MEMORY

2.2K( 1/8W)

2.2K( 1/8W)

R977

C932

CN301

QGA2501C1-07

0.047

C337

C141
1/50

C241
1/50

82K

R243

680

R133

0.047

C931

CN302

QGA2501C1-06

QNZ0095-001

CN771

IC941

330P

330P330P

C144

C143C243

330P

C244

C242
1/50

R941

27K

D941

1SS355

D131

MA152WA

680

2.2k

2.2k

R132

R131

R134

Q131

2SD1048

Q132 Q232

2SD1048 2SD1048

100

100

R136

R135

100P

LA4743B

100

R236

C941

C942

47/16

1/25

0.01

C943

R942

27K

R943

1K

Q942

C944

UN2211

10/16

D231

MA152WA

680

680

2.2k

2.2k

R231

R232

R233

R234

Q231

2SD1048

100

R235

C962

QNZ0090-001

R961

1K( 1/8W)

2.2/50

CN901

L961

D961

1N5401TU

C961

2200/16

QQR0703-001

R978

100K

TAPE REC SIGNAL
TUNER SIGNAL
CD-CH SIGNAL
LINE IN SIGNAL
FRONT SIGNAL
REAR SIGNAL

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

PP3

C921

100P

C922

100P

C923

100P

C924

100P

C925

100P

C926

100P

C927

100P

C928

100P

BC

DE

2-2

F

G

HA

I

Mecha. contr ol section

TAPE REC SIGNAL

C409

R410

Q403

C405

C416

R419

CP402

C406

R406

Q402

Q401

CP401

D403

IC402

C418

C419

CP403

R420

IC401

C412

R417

R412

VR101

C411

C410

R408

C415

C413

C414

R415

R418

C403

R405 R404

R403

C402

R402

C401

R411

R407

VR201

C407

R409

C404

C408

R414

R422

R421

D401

D402

R424

R425

C417

R423

R413

R401

R416

0.01

300K

DTC114EKA

22/16

0.1

1.2M

QGB1214K1-10S

0.01

300K

DTC114EKA

2SA1706/ST/-T

QGA2001F1-07

MA3075( M)

LB1641

0.01

0.1

QGB1214K1-18S

15K

100P

1K

12K

33K

1/50

22/16

18K

0.01

0.1

0.47/50

3.9K

22K

100P

180 180

100K

470P

100K

470P

18K 12K

33K

1/50

18K

100P

0.1

1K

3.3K

47K

DSK10C

MA3036( L)

33

8R2

10/16

3.3K

100

2.2K

10K

6

KS-LX200R

5

4

3

2

1

BC

DE

F

G

HA

I

2-3

KS-LX200R KS-LX200R

LCD & Key control section

R636R637R638R639R640R641

6

8208201.2k1.8k2.7k3.9k

S637

QSW0856-001X

S636

QSW0856-001X

R647

3.9K

R633

R651

220

S635

QSW0856-001X

220

2.7k

S634

QSW0856-001X

220

R632

1.8k 1.2k

S633

QSW0856-001X

S632

NSW0041-001X

D656

CL-190UB-X-X

R643R646 R645 R644

D655

CL-190UB-X-X

R655

S631

390

390

R656

QSW0856-001X

R642

820820

220

R652

R634R635
220220

CN631

QGF0501F1-06X

S643

QSW0856-001X

S642

QSW0856-001X

S641

QSW0856-001X

S640

QSW0856-001X

S639

S638

QSW0856-001

QSW0856-001

5

S64S2S65

S66

S67

S41

S42

S43

S44

S45

S46

S47

S48

S49

S50

S51

S52

S53

S54

S55

S56

COM3

COM2

COM1

S25

S26

S27

S28

S29

S30

S31

S32

S33

S34

S35

S36

S37

S38

S39

S40

S57

S58

S59

S60

S61

4

QNZ0495-001

S3S2S1

S4

S5S6S7S8S9

S10

S11

S12

S13

S14

S15

S16

S22

S23

S24

S21

S20

S19

S18

S17

10V

R621

INV

Q612
2SD2185

L612

47U

L613

L611

NQLZ007-680X

220

680

R613

D621D622

10/10

R612 R611

0.1

C615

C614

C611

5600P

2SD2185

4.7k 4.7k

Q611

0.022

C612

KEY2

RESET

3

S625

R623

R624

820

820

S622S624

S623

S621

KEY1

R676

390

D627

LT1F67AF-W

R622

220

D623

D624

S68

S62

S63

C613

BL611

QNZ0494-001

4.7/6.3

C601

15P/3.15k

QLL0059-001

R601

D626

R629

S43

S44

S45

S46

S47

S48

S49

S50

S51

S52

S53

S54

S55

S56

S57

S58

S59

S60

S61

S62S3

PC601
PR-20

S64
S65
S66
S67
S68
COM1
COM2

R603

COM3

LCDRST
LCDCE1
LCDCL

220p

LCDDA

220K

10K

C604

R604

S1

S4S5S6S7S8S9S10

10K

10K

R602

0.1

0.1

C603

C602

IC601

LC75873NW

S11

S12

S13

S14

S15

S16

S17

S18

S19

S20

S21

S22

S42S63
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23

PC602
PR-20

MA152WK

R630

470

Q691

1K

2SD601A
100k
R691

39k

R692

100k
R693

Q692

39k

R694

2SD601A

VDD

LCDDA
LCDCL
LCDCE1
LCDCE2
LCDRST

D625

IC603
RPM6938-V4

R627R628

1200

MA3051/M

CN601

QGF0501F1-16X

R671
R672
R673
R674
R675

4.7/6.3

R625

RESET

470

INV

KEY1
KEY2

330
330

3.3K

3.3K

3.3K

10V

10K

R626

C625

2

1

BC

DE

2-4

F

G

HA

I