KS-LX200R
SERVICE MANUAL
CASSETTE RECEIVER
KS-LX200R
Area Suffix
E
EX
Continental Europe
Central Europe
7
8
KS-LX200R
Contents
Safety precaution
1-2
Disassembly method
Adjustment method
Description of major ICs
1-3
1-13
1-17
This service manual is printed on 100% recycled paper.
No.49573
Oct. 2000
COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.
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KS-LX200R
CXA2510AQ (IC401) : Head AMP / Dolby
1. Pin layout & Block diagram
NR
20 MSMODE
19 DRSW
18 TAPESW
17 INSW
PBFB2 31
PBRIN 32
PBREF2 33
PBFIN2 34
VCT 35
120 /70
OFF/
B / C
T2
MS MODE
NR MODE
X1
NR BIAS
F2
TAPE / AUX
TAPE EQ
16 NRSW
15 MRMODE
14 MSOUT
13 DGND
12 MSTC
VCT
FWD / RVS
Vcc
PBGND 36
PBFIN1 37
PBREF1 38
PBRIN1 39
PBFB1 40
MS ON/
OFF
+
-
LPF
DET
F1
F3
X1
T1
11 G1FB
120 /70
NR
2. Pin functions
Pin No.
Symbol
PBEQ1
PBOUT1
Vcc
Functions
I/O
O
O
-
Resistance for selecting the equalizer amplifier time constant.
Playback equalizer amplifier out put.
Power supply
1
2
3
TAPEIN1
AUXIN1
MSLPF
LINEOUT1
TCH1
TAPE input.
I
4
External input.
I
5
Cut-off frequency adjustment of the music sensor LPF.
Line out.
-
6
O
-
7
Time constant for the HLS.
Non connection.
8
NC
-
9
G2FB
Music signal interval detection level setting.
-
10
11
12
13
14
15
G1FB
MSTC
DGND
MSUOT
NC
Time constant for detecting the music signal interval.
Logic ground (Connect to GND)
Music sensor output.
-
O
I
Non connection.
1-18
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KS-LX200R
Symbol
NRSW
INSW
Pin
16
Functions
Dolby NR control L:NR OFF H:NR ON
Line amplifier input select control L:TAPE IN H:AUX IN
Playback equalizer amplifier control L:120us H:70us
Head select control L:FORWARD H:REVERSE
Music sensor mode control Low(open):G1 High:G2
Music sensor control Low(open):MS on High:MS OFF
Non connection
I/O
I
I
17
18
19
20
21
22
23
24
25
METAL
DRSW
FF/REW
MSSW
NC
I
I
I
I
-
TCH2
-
Time constant for the HLS
LINEOUT2
DIREF
O
-
Line output
Resistance for setting the reference current (Connects 20(18)K
between DIREF pin and GND for the standard setting.)
Non connection.
NC
-
I
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
TAPEIN2
GND
TAPE input.
-
To ground.
PBOUT2
PBEQ2
PBFB2
NC
O
O
I
Playback equalizer amplifier output.
Resistance for selecting the playback equalizer amplifier time constant
Playback equalizer amplifier feedback.
Non connection.
-
PBREF2
PBFIN2
VCT
O
I
Playback equalizer amplifier reference (Vcc/2 output)
Playback equalizer amplifier input (FORWARD head connected)
Center (Vcc/2 output)
O
-
PBGND
PBFIN1
PBREF1
NC
Playback equalizer amplifier ground (Connect to ground)
Playback equalizer amplifier input (FORWARD head connected)
Playback equalizer amplifier reference (Vcc/2 output)
Non connection.
I
O
-
PBFB1
I
Playback equalizer amplifier feedback.
NJM4565M-W (IC951,IC171,IC323) : Ope amp.
A OUTPUT
A -INPUT
A +INPUT
V-
1
2
3
4
8
7
6
5
V+
B OUTPUT
B -INPUT
B +INPUT
A
B
1-19
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KS-LX200R
KA3031 (IC831) : Motor driver
1. Pin layout
48
~
37
1
36
~
~
12
13
25
~
24
2. Block diagram
IN1.1 REG50 REG050 REF
48 47 46 45
SVCC RES50
44 43
OPIN(+) OPIN(-) OPOUT PVCC2 DO1.1 DO1.2
42 41 40 39 38 37
-
SW
+
IN1.2
1
2
36 DO2.1
35 DO2.2
+
-
ALL MUTE
T.S.D
O.V.P
OUT1
2.5V
-
IN2.1
IN2.2
3
4
34 PGND3
33 DO3.1
+
+
-
+
2P
2P
-
-
-
+
+
-
+
-
+
+
-
2P
2P
2P
OUT2
IN3.1
5
6
32 DO3.2
-
-
+
+
31 PGND2
-
+
-
+
+
-
-
-
+
+
2P
2P
-
+
+
-
+
-
-
IN3.2
OUT3
IN4.1
7
8
9
30 PGND1
-
+
+
2P
29 DO4.1
28 DO4.2
+
-
D
D
M
S
C
S
W
2P
2P
+
-
27 DO5.1
26 DO5.2
25 DO6.1
D
D
IN4.2 10
OUT4 11
CTL1 12
M
S
C
S
2P
2P
W
MUTE4
MUTE3
MUTE2
MUTE1
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
1-20
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KS-LX200R
3. Pin function
Pin No. Symbol
I/O
Function
Pin No. Symbol
I/O
Function
1
2
IN1.2
OUT1
IN2.1
IN2.2
OUT2
IN3.1
IN3.2
OUT3
IN4.1
IN4.2
OUT4
I
O
I
CH 1 op-amp input (-)
CH 1 op-amp output
CH 2 op-amp input (+)
CH 2 op-amp input (-)
CH 2 op-amp output
CH 3 op-amp input (+)
CH 3 op-amp input (-)
CH 3 op-amp output
CH 4 op-amp input(+)
CH 4 op-amp input (-)
CH 4 op-amp output
25
26
27
28
29
30
31
32
33
34
35
DO6.1
DO5.2
DO5.1
SO4.2
DO4.1
PGND
PGND
DO3.2
DO3.1
PGND
DO2.2
O
O
O
O
O
CH 6 drive outout
CH 5 drive output
CH 5 drive output
CH 4 drive output
CH 4 drive output
Power ground
3
4
I
5
O
I
6
Power ground
7
I
-
CH 3 drive output
CH 3 drive output
Power ground
8
O
I
O
O
9
10
11
I
CH 2 drive output
O
O
O
CH 5 motor speed
control
CH 2 drive output
12
CTL1
I
36
SO2.1
FWD1
REW1
I
I
CH 5 forward input
CH 5 reverse input
37
38
SO1.2
DO1.1
O
O
13
14
CH 1 drive output
CH 1 drive output
CH 6 motor speed
control
Power supply voltage
(For CH 1, CH 2, CH 3, CH 4)
CTL2
39
I
PVCC2
-
15
CH 6 torward input
CH 6 reverse input
Signal ground
CH 1 mute
OPOUT
OPIN(-)
OPIN(+)
RES50
SVCC
Opamp output
16
17
18
19
20
21
22
FED2
REW2
I
I
-
I
I
I
I
40
41
42
43
44
45
46
O
I
Opamp input (-)
Opamp input (+)
Regulator 5V reset
Signal supply voltage
Bias voltage input
regulator 5V output
SGND
I
MUTE1
MUTE2
MUTE3
MUTE4
I
CH 2 mute
-
CH 3 mute
REF
I
CH 4 mute
REG050
O
Power supply voltage
(For CH 5, CH 6)
Regulator output
REG50
IN1.1
23
24
PVCC1
DO6.2
-
47
48
O
I
CH 6 drive output
O
CH 1 opamp onput (+)
BU4066BCF-X (IC322) : Switch
1.Pin l ayout
2.Block diagram
14 13 12 11 10
9
8
14
13 12
11
10
9
8
1
2
3
4
5
6
7
1
2
3
4
5
6
7
1-21
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KS-LX200R
UPD784215AGC113 (IC701) : UNIT CPU
1.Pin layout
75
~
51
76
50
26
100
1
~
25
2.Pin function
Pin No.
Symbol
I/O
Function
1
2
3
4
5
6
7
O
O
O
I
Output for input signal level switching for MS.
Dolby on "H" output.
MS output.
Fwd, REV direction switch signal input.
Non connect
Tray light control signal output.
Dimmer signal output.
FF/REW
DOLBY
MS-OUT
F/R
HOLD
TRAYCNT
DIMMER-OUT
LCD-POWER
VDD
-
O
O
-
8
9
Non connect.
Power supply terminal.
-
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
O
I
-
O
I
I
I
I
I
I
I
I
I
-
-
-
-
I
Connecting the crystal oscillator for system main clock.
Connecting the crystal oscillator for system main clock.
Connect to GND.
Connecting the crystal oscillator for system sub clock.
Connecting the crystal oscillator for system sub clock.
System reset signal input.
Cassette mechanism detect switch.
J-BUS signal cut in input.
Power save 2.
CRUISE signal input.
RDS selial clock input.
RDS data input.
Remove control signal input.
Power supply terminal.
Connect to GND.
Connect to GND.
Connect to GND.
Key control 0 input.
Key control 1 input.
Key control 2 input.
Level meter signal input.
S.quality level input.
S.meter level input.
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
I
I
I
I
I
-
Connect to GND.
O
O
-
I/O
O
I/O
I
O
O
O
O
I
O
I/O
I/O
O
O
Woofer volume signal output.
Dot contrast signal input.
Power supply terminal.
J-BUS data I/O terminal.
J-BUS data output.
J-BUS serial clock signal I/O.
Initial setting.
Data output for LCD driver.
Clock otput for LCD driver.
Chip enable 1 output for LCD driver.
BUZZER control signal output.
Data input terminal from EEPROM.
Data output terminal from EEPROM.
Data input terminal from EEPROM.
J-BUS I/O signal terminal.
Tray motor negative signal output.
Tray motor positive signal output.
TM1
1-22
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KS-LX200R
Pin No.
Symbol
I/O
Function
Door motor negative signal output.
Door motor positive signal output.
Stereo signal input.
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
O
O
I
-
O
I
I
I
I
I
DM0
DM1
ST
LOCAL
MONO
CA-SW1
CA-SW2
CA-SW3
CA-SW4
CA-SW5
VCR-CONT
AFCK
Non connect.
Manual ON/OFF select signal output.
DOOR/TRAY open/close detect switch signal input.
DOOR/TRAY open/close detect switch signal input.
DOOR/TRAY open/close detect switch signal input.
DOOR/TRAY open/close detect switch signal input.
DOOR/TRAY open/close detect switch signal input.
Non connect.
AF check output.
AUTO SEEK/STOP select signal output.
Station detector input.
FM/AM select signal output.
Chip enable signal output.
Data output.
Clock signal output.
AM detect signal input.
Telephone.
Non connect.
Connect to GND
DIMMER signal input.
Power save 1.
Power ON/OFF select signal output.
Non connect.
-
O
O
I
O
O
O
O
I
I
-
-
I
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
I
O
-
O
O
O
O
-
O
O
I
Mute signal output.
Woofer LPF 1 signal output.
Woofer LPF 2 signal output.
Woofer mute signal output.
Power supply.
Data output.
Clock signal output.
CF select signal input.
Non connect.
-
O
O
O
O
I
O
I
I
LCD reset signal output.
Chip enable 2 output.
Motor speed control signal output.
Tray motor control signal output.
Initial setting.
Mecha Motor signal output.
Mecha mode position detection input.
Standby position derection input.
Test terminal
Cassette in detection input.
Sub motor clock direction drive output.
Sub motor clock oppositte direction drive output.
Tape end detection input.
Kick output.
LCD RST
LCD-CE2
DMK
TMK
STAGE1
MOTOR
MODE
STANDBY
TEST
TAPE-IN
SUBMO-
SUBMO+
TAPE-END
KICK
I
O
O
I
O
I
Voice control signal input.
VOICE IN
1-23
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KS-LX200R
BD3860K (IC911) : E. volume
1. Pin layout
33
~
23
34
22
12
44
1
~
11
2. Block diagram
GND FIL VCC
SEL1
40
VIN1 LOUD1
HF1 LF1 DET1 VCA1 MIX1 BBOUT1 TIN1 TNF1
BNF1 BOUT1
15 14
6
5
9
36
35
34 33 28 32 31 30
29 19
POWER
SUPPLY
FADER
MAIN
INPUT
GAIN
CH1 FRONT
0 to -5 dB
13 OUTF1
TREBLE
BASS
VOLUME
LOW(f=50Hz) 6dB
0 to -40 dB
-14 to +14dB
-14 to +14dB
PROCESS CONTROL +3 to 12dB
(f=10kHz)
A1
B1
C1
D1
41
42
43
44
LOUDNESS
0 to 18 dB
FADER
OUTR1
SI
CH1 REAR
0 to -5 dB
12
7
INPUT
SC
8
LOGIC
FADER
SELECTOR
OUTR2
A2
B2
C2
D2
CH2 REAR
0 to -5 dB
10
1
2
3
4
MAIN
INPUT
GAIN
TREBLE
BASS
VOLUME
0 to -40 dB
LOUDNESS
FADER
LOW(f=50Hz) 6dB
-14 to +14dB
-14 to +14dB
CH2 FRONT
0 to -5 dB
OUTF2
PROCESS CONTROL +3 to 12dB
(f=10kHz)
11
0 to 18 dB
39
SEL2
38
VIN2
37
LOUD2
25 24 26 23 22 21
HF2 LF2 DET2VCA2MIX2 BBOUT2 TIN2 TNF2
20 18
17
16
BNF2 BOUT2
3. Pin function
Pin
Pin
Symbol
Function
Symbol
Function
No.
1
2
3
4
5
6
7
8
9
No.
A2
B2
C2
D2
FIL
CH2 input terminal A
CH2 input terminal B
CH2 input terminal C
CH2 input terminal D
1/2 VCC terminal
23 VCA2 CH2 high frequency VCA output terminal
24 LF2 CH2 low frequency filter setting terminal
25 HF2 CH2 high frequency filter setting terminal
26 DET2 CH2 high frequency attack release time setting
27
NC
Non connect
GND Ground terminal
SI
SC
28 DET1 CH1 high frequency attack release time setting
29 TIN1 CH1 treble input terminal
Serial data input terminal
Serial clock input terminal
30 BBOUT1 CH1 BBE II signal output terminal
31 MIX1 CH1 output mix amp. negative input terminal
32 VCA1 CH1 high frequency VCA output terminal
33 LF1 CH1 low frequency filter setting terminal
34 HF1 CH1 high frequency filter setting terminal
35 LOUD1 CH1 loudness filter setting terminal
36 VIN1 CH1 main volume input terminal
37 LOUD2 CH2 loudness filter setting terminal
38 VIN2 CH2 main volume input terminal
39 SEL2 CH2 input gain output terminal
VCC Power supply
10 OUTR2 CH2 rear output terminal
11 OUTF2 CH2 front output terminal
12 OUTR1 CH1 rear output terminal
13 OUTF1 CH1 front output terminal
14 BOUT1 CH1 bus filter setting terminal
15 BNF1 CH1 bus filter setting terminal
16 BOUT2 CH2 bus filter setting terminal
17 BNF2 CH2 bus filter setting terminal
18 TNF2 CH2 treble filter setting terminal
19 TNF1 CH1 treble setting terminal
20 TIN2 CH2 treble input terminal
21 BBOUT2 CH2 BBE II signal output terminal
40 SEL1 CH1 input gain output terminal
41
42
43
A1
B1
C1
D1
CH1 input terminal A
CH1 input terminal B
CH1 input terminal C
CH1 input terminal D
22 MIX2 CH2 output mix amp negative input terminal 44
1-24
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KS-LX200R
LA3460M-X (IC31) : FM noise canceller & Stereo MPX demodulator
1. Pin layout
24
13
1
12
2. Block diagram
24
23
22
21
20
19
18
17
16
15
14
13
DRIVER
VCO STOP
VCO
PC
PD
LPF
FF
PACAN
LPF
SCHMIT
SEPARATION
ADJ.
SUB
HPF
LPF
ANTI-BRIDGE
DECODER
MAIN
GATE
HCC
SNC
TRIG
AGC
CONTROL
1
2
3
4
5
6
7
8
9
10
11
12
3. Pin function
Pin
No.
Function
Description
1
2
3
4
5
6
7
8
9
Noise sense
Noise AGC
Gate time
Signal hold
Pilot output
Vcc
Capacitor for HCC
SNC control
HCC control
Noise sensitivity adjustment
Vcc=+8.0V
High pass filter
Stereo noise controlled voltage
High cut controlled voltage
10 Lch output
11 Rch output
12 Pican input
13 Pican output
14 Separation ADJ
15 NC
pilot cancel signal input
pilot cancel signal outpt
16 NC
17 456kHz OSC
18 Phase comp LPF (+)
19 Phase comp LPF (-)
20 GND
Ceramic resonator
Phase comparator low pass filter
Phase comparator low pass filter
21 PLL input
Phase locked loop signal input
Active low
Composite signal input
22 Stereo indicator
23 Composite input
24 Pilot det LPF
1-25
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KS-LX200R
LA4743B (IC941) :Power amp
1.Terminal layout
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
2.Block diagram
3.Pin function
Pin
Pin
Symbol
Function
Symbol
Function
Front Lch input
Rear Lch input
No.
1
No.
TAB
Header of IC
14 LFIN
15 LRIN
2
GND1
RFO-
STBY
RFO+
VCC1/2
RRO-
GND2
RRO+
Power GND
3
Output (-) for front Rch
Stand by input
16 ONTIME Power on time control
4
17 LRO+
18 GND3
19 LRO-
20 VCC3/4
21 LFO+
22 MUTE
23 LFO-
24 GND4
25 NC
Output (+) for rear Lch
Power GND
5
Output (+) for front Rch
Power input
6
Output (-) for rear Lch
Power input
7
Output (-) for rear Rch
Power GND
8
Output (+) for front
Muting control input
Output (-) for front
Power GND
9
Output (+) for rear Rch
Ripple filter
10 R.F
11 RRIN
12 RFIN
13 SGND
Rear Rch input
Front Rch input
Signal GND
Non connection
1-26
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KS-LX200R
LC75873NW (IC601) : LCD driver
1.Block diagram
VDD1
COMMOM
SEGMENT DRIVER
SHIFT REGISTER
DRIVER
VDD2
INH
CLOCK
OSC
GENERATOR
VDD
VSS
ADDRESS
DETECTOR
2.Pin functions
Pin No. Symbol
1~66 S3~S68
67~69 COM1~3
Description
I/O
O
O
-
Segment Output.
Common Driver Output.
70
71
VDD
Power Supply Connection.
VDD1
I
Used for applying the LCD drive 2/3 bias voltage externally.
Must be connected to VDD2 when a 1/2 bias drive scheme in used.
Used for applying the LCD drive 1/3 bias voltage externally.
Must be connected to VDD1 when a 1/2 bias drive scheme in used.
Power supply connection.
72
VDD2
I
73
74
VSS
OSC
-
I/O Oscillator connection. An oscillator circuit is formed by connecting an
external resistor and capacitor to this pin.
75
76
77
78
79
80
INH
CE
I
I
Display off control input.
Chip enable input.
Synchronization clock input.
Serial data input.
CLOCK
DI
I
I
S1
O
O
Signal output.
S2
Signal output.
1-27
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KS-LX200R
BA3220FV-X (IC301) : Driver
1. Pin layout & Block diagram
CL-
14
LGND
OUTL
12
OUTR
11
RGND
10
CR -
9
CR +
8
13
REFL
REFR
FILTER
1
2
Vcc
3
4
5
6
7
CL+
INL
NFL
FIL
NFR
INR
2. Pin function
Pin
Symbol
Function
No.
1
2
3
4
5
6
7
8
9
CL+
Vcc
INL
NFL
FIL
NFR
INR
CR+
CR-
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.
10 RGND
11 OUTR
12 OUTL
13 LGND
14 CL-
Rch output terminal.
Lch output terminal.
Lch GND terminal.
Output terminal of internal amp.
1-28
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KS-LX200R
BR24C32F-X (IC703) : EEPROM
1. Pin layout
Vcc
WP
SCL
SDA
A1
A2
GND
A0
2. Block diagram
A0 1
8 Vcc
7 WP
6 SCL
5 SDA
32k bit EEPROM ARRAY
8bit
12bit
SLAVE/WORD
ADDRESS REGISTER
ADDERESS
DECODER
DATA
REGISTER
A1 2
A2 3
12bit
START
CONTROL LOGIC
STOP
ACK
HIGH VOLTAGE GEN.
GND 4
Vcc LEVEL DETECT
3. Pin function
Pin No. I/O
Functions
Vcc
GND
-
-
Power supply
Ground (0V)
AO,A1,A2 IN Slave address set
SCL
SDA
WP
IN Serial clock input
I/O Slave and word address/Serial data output
IN Write protect input
1-29
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KS-LX200R
SAA6579T-X (IC51) : RDS demodulator
1. Pin layout
2. Pin function
Pin
Symbol
Function
No.
1
2
3
4
5
6
7
QUAL Quality indication output
RDDA RDS data output
Vref Reference voltage output (0.5VDDA)
MUX Multiplex signal input
VDDA +5V supply voltage for analog part
VSSA Ground for analog part (0V)
CIN Sub carrier input to comparator
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
8 SCOUT Sub carrier output of reconstruction filter
9 MODE Oscillator mode / test control input
10 TEST Test enable input
11 VSSD Ground for digital part (0V)
12 VDDD +5V supply voltage for digital part
13 OSCI Oscillator input
14 OSCO Oscillator output
15 T57 57kHz clock signal output
16 RDCL RDS clock output
OSCI
13
OSCO
14
VDDD
12
3. Block diagram
57kHz
BAND PASS
(8th ORDER)
ANTI-
ALIASING
FILTER
QUAL
RDDA
OSCILLATOR
AND
DIVIDER
4
1
QUALITY BIT
GENERATOR
RECONSTRUCTION
FILTER
MUX
8
SCOUT
COSTAR LOOP
VARIABLE AND
FIXED DIVIDER
BIPHASE
SYMBOL
DECODER
7
2
16
15
CLOCKED
COMPARATOR
DIFFERENTIAL
DECODER
CIN
5
VDDA
Vp1
RDCL
T57
CLOCK
REGENERATION
AND SYNC
3
TEST LOGIC AND OUTPUT
SELECTOR SWITCH
REFERENCE
VOLTAGE
Vref
6
9
10
11
VSSA
MODE
TEST
VSDD
IC-PST600M/G/-W (IC702) : System reset
1
IN
3
2
Vout
OUT
Co1
OP1
1-30
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KS-LX200R
HD74HC126FP-X (IC771) : Buffer
1. Pin layout
2. Pin function
Inputs
Outputs
1
2
3
4
5
6
7
14
13
12
11
10
9
C
L
H
H
A
X
L
Y
Z
H
L
H
8
3. Block diagram
Vcc
Vcc
1k
1A
2A
3A
4A
1C
2C
3C
4C
Output
S1
1k
1Y
2Y
Input
CL
Output
Output
Output
2Y
3Y
4Y
Sample as Load Circuit 1
Sample as Load Circuit 1
Sample as Load Circuit 1
RPM6938-SV4 (IC602) : Remote control receiver
Vcc
Vcc
AGC
22k
ohm
AMP
Comp
Rout
I/V
conversion
BPF
Detector
PD
for
trimming
circuit
GND
magnetic shield
1-31
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KS-LX200R
M5282FP-XE (IC321) : E. volume
1. Pin layout
2. Block diagram
10
1
2
3
4
5
10
9
1
8
2
3
7
9
6
4
5
7
8
3. Pin function
Pin
Symbol
Vcc/2
Function
No.
1
Vcc/2 output for microphone amp.
2
3
Amp+IN Microphone amp. positive input terminal.
Amp-IN Microphone amp. negative input terminal.
4 Amp OUT Microphone amp. output terminal.
5
6
7
8
GND
NC
Ground.
Non connection.
VCA IN VCA input terminal.
Vc VCA control terminal.
9 VCA OUT VCA output terminal.
10 Vcc Power supply.
LB1641 (IC402) : DC Motor driver
1. Pin layout
10
1
2
3
4
5
6
7
8
9
GND OUT1 P1
VCC1
VCC2 P2
OUT2
VZ
IN1 IN2
2. Pin function
Input
Output
Mode
IN1
0
IN2
OUT1
OUT2
Brake
0
0
1
1
0
1
0
0
0
0
1
0
CLOCKWISE
1
COUNTER-CLOCKWISE
Brake
0
1
1-32
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KS-LX200R
Block diagram
IC301
Lch LINE
AMP.
FMDET.ADJ
SEPA.ADJ
LOUTFL
LOUTRR
TU1
TUNER PACK
IC911
E.VOL.
L-ch
R-ch
INFL
INRL
IC31
MPX
FRONTL
FRONTR
M
M
FM/AM
S.METER
SD/ST
STANDBY,TAPEEND
RDS
ST
Lch,Rch
MSOUT
NRSW
IC401
Rch LINE
AMP.
INFR
INRR
ROUTFL
ROUTRR
IC401
HEAD AMP
IC51
RDS
PLLCE
PLLDA
PLLCL
REARL
REARR
Lch,Rch
FF REW
HEAD COMMON
AU.L
AU.R
MODE,F/R,TAPE IN
TAPE.L
TAPE.R
VOLDA
IC901
POWER AMP.
SUBMO
IC402
VOLCLK
IC701
CPU
MOTOR
DRIVER
IC321
E.VOL
IC323
OPE.AMP.
SUBMO ,TAPE IN
STANDBY,MODE
MOTOR,FF REW
DOLBY,MSOUT,F/R
SUBMO
W.VOL
WLPF1
WLPF2
IC322
SI/SO
SO,I/O
SWITCHING
SCK,SI/SO
LED &
KEY MATRIX
KEY0,KEY1
SCL
SDDA
BUSINT
BUSSCK
CH.L
CH.R
IC703
EEPROM
IC771
JVC-BUS
IC603
REMOCON
REMOCON
LCD1
COM1~3
DOTCONT
LCDRST,LCDCE1
LCDCL,LCDDA
REMOCON,KEY1
KEY2,LCDCA
LCDCL,LCDCE1
S1~S86
IC951
OPE.AMP.
IC171
LINE IN
KEY1
KEY2
RESET
IC601
LCD DRIVER
FRONTL
FRONTR
REARL
EACH
BLOCK
KEY
MATRIX
REARR
TM0
TM1
DM0
DM1
TRAY
IC961
REG.
MOTOR
AULI
AURI
TRAY
M
CN771
CD-CH
IC831
DRIVER
CN901
DOOR
MOTOR
SUB
LINE IN LINE OUT
WOOFER
OUT
M
DOOR
2-1
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KS-LX200R
KS-LX200R
Standard schematic diagrams
Main amp. section
C163
0.047
D161
R162
12K
1SS355
IC941
LA4743B
C161
Q161
2SD601A
TU1
1/50
R165
R303
33K
QAU0157-002
390
6
5
4
3
2
IC301
BA3220FV
C307
100/10
C305
4.7/25
C306
4.7/25
4.7/25
C301
24K
R301
C3084.7/25
R3
10
C309
4.7/25
C310
Q1
C120
470P
47/16
C141
1/50
R4
UN2211
C303
10K
L1
4.7u
C302
4.7/25
R302
24K
100/10
C142
1/50
C11
0.047
D3
1SS355
PP3
R304
33K
R305
150K
IC911
BA3860K
RDSDA
PP4
R2
100K
C218
0.047
R403
33K
GND
R354
6.8K
C241
1/50
C354
0.1
IC401
BA3220FV
Q13
2SB709A
C352
C220
C219
470P
10/16
C407
100/10
R11
0.01 R355
Q11
8.2( 1/8W) 2SB815
C44
1/50
C355
470P
C242
1/50
C40
1/50
220K
C454
0.1
R40
5.6K
C39
R454
6.8K
C357 0.0047
C457 0.0047
C405
4.7/25
4.7/25
C401
R401
24K
C408
4.7/25
R941
27K
Q21
2SC2412K
C43
C42 1/50
1/50
R942
27K
C455
470P
R455
220K
C356
10/16
C409
C459 0.22
47/16
R458
3.3K
4.7/25
R943
1K
0.1/50
C403
R43
100K
C458 0.22
C358 0.22
R118 C112
C456 10/16
C402
C41
0.01
C406
4.7/25
R402
24K
C410
100/10
CH.L
TAPE.L R119
4.7/25
100
R358
3.3K
4.7/10
C359 0.22
0
R404
33K
R405
150K
Q33
RDSSCK
Q942
Q12
X51
1/50
R120
10K
2SD601A
UN2211
UN2211
C104
FM/AM
R45
47K
C327
0.082
Q34
UN2111
R323
10K
R327
5.6K
S.METER
C212
C322 0.01
R218
100
CH.R
10K R324
AMAF
4.7/10
R322
Q23
2SC2412K
TAPE.R R219
GND
0
R328
15K
R37
D101
MA152WK
100K
10K
R220 1/50
R101
R27
470
2.2K
SQ
C204
0.22/50
UN2211
Q32
10K
C103
C203
C22
0.01
C24
0.1
R954
10K
VOL-CLK LEVEL
R201
10K
R451
R452
220k
220k
C321 VOL-DA
0.22/50
D201
10/16
MA152WK
D451
MA152WK
SUBW
GND
Q24
C325
C328
0.0068
R326
10K
R329
UN2211
0
W-VOL
2.2/50
C921 100P
C922 100P
C923 100P
C924 100P
C925 100P
C926 100P
C927 100P
C928 100P
CN703
Q35
2SB709A
R177
1K
R176
R175
10k
R174
TAPE.L
AU.L
C173
22/6.3
C172
10/16
R332
100K
Q132
2SD1048
Q232
GND
8.2K
2SD1048
R173
TAPE.R
F/R
Q36
W-LPF2
0.0056
C331
UN2211
10k
8.2K
R344
1M
Q321
UN2211
R343
1M
SW14V
D961
MSOUT
DOLBY
IC171
1N5401TU
NJM4565M
FF/REW
MOTOR
MODE
R951
5.6K
C951 0.1
C961
2200/16
VSS
DOTCONT
R276
10k
R273
C272
10/16
STANDBY
TAPE-IN
SUBMO-
SUBMO+
TAPE-END
KICK
8.2K
R277
R275
10k
R274
MEMORY
AU.R
C273
R334
47K
1K
8.2K
22/6.3
5V
R341
1M
R342
1M
R321
1K
R735
4.7K
L701
47u
TEL
ILL
D962
R734
R733
R732
R731
4.7K
47K
47K
47K
W-LPF1
CRS03-W
Q322
UN2211
IC703
BR24C32F
R961
Q324
UN2211
1K( 1/8W)
CN704
QGA1201C2-04X
C710
220/10
CASW1
CASW2
CASW3
W-MUTE
MUT
IC701
UPD784215GC-XXX
AU.LI
C711
470P
NSW0120-002X S651
NSW0120-002X S652
NSW0120-002X S653
CN301
QGA2501C1-07
AU.G
AU.RI
VDD
CN901
QNZ0090-001
Q977
UN2111
Q979
UN2111
MUTE
CN504
R723
1K
QGA2501F1-02
W-LPF1
Q966
2SB709A
IC961
BA4905
I/O
W-LPF2
TRAY-
TD
RD
R970
12K
W-MUTE
TRAY+
R722
R721 10K
10K
DOOR+
DOOR-
VOL-DA
C712
0.047
BUZZER
VOL-CLK
R720
R719
R718
330
LCDCE1
LCDCL
LCDDA
CFSEL R766
2.2K
330
1.8uH
1.8uH
CN503
QGA2501F1-02
CASW4
CASW5
R752
R767
R758
CN702
QGF0501F1-06X
330
R717
R716
R715
4.7K
4.7K
4.7K
47K
TRAY10V
BUSSCK
SO
DMK
TMK
DIMIN
Q964
2SB709A
SI/SO
R740
47K
AU.LI
AU.G
AU.RI
SUBW
GND
D963
MA152WA
C719
470P
MOTOR
DOTCONT
KEY0
KEY1
MODE
W-VOL
R964
47k
R338
STANDBY
Q983
R742
R714
R713
10K
10K
S.METER
SQ
2SD601A
100
R339
100
TELMUTE
RESET
ACC5V
10V
TAPE-IN
SUBMO-
SUBMO+
10K
Q981
UN2111
LEVEL
Q982
UN2211
R712
R711
R710
10K
10K
10K
GND
KEY2
KEY1
KEY0
TAPE-END
KICK
REMOCON
KEY1
R743
47K
Q963
UN2213
Q986
UN2211
R7094.7K
KEY2
R746
47K
R7084.7K
R7074.7K
DOT
LCDDA
LCDCL
LCDCE1
VPP
SCK
R747
R748
R749
R750
47K
47K
47K
47K
CH.L
R775
10k
R776
Q991
100k
TAPE REC SIGNAL
TUNER SIGNAL
CD-CH SIGNAL
LINE IN SIGNAL
FRONT SIGNAL
REAR SIGNAL
SI/SO
X1
R777
CH.R
HOLD
UDZS5.1B-X
14V
CN701
QGF0503C1-16V
22K
R778
R781
330
100
DM0
IC702
PST600MG
DM1
DMK
TM0
TM1
TMK
R774
100
X701
X702
Q702
2SB815
R706
10K
RESET
PP2
IC771
HD74HC126FP
PP1
R831
Q791
UN2211
4.7K
1
IC831
R793
0
R833
KA3031
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
Q701
3.3K
UN2211
A
D
E
G
H
B
C
F
I
2-2
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KS-LX200R
Mecha. control section
6
5
4
3
2
Q401
2SA1706/ST/-T
CP401
QGA2001F1-07
Q402
DTC114EKA
R406
300K
C406
0.01
CP402
QGB1214K1-10S
R420
15K
C405
22/16
IC401
C416 0.1
IC402
LB1641
R419
1.2M
C409
C418
0.01
0.01
R410
300K
C419
0.1
Q403
DTC114EKA
D403
MA3075( M)
CP403
QGB1214K1-18S
1
TAPE REC SIGNAL
A
D
E
G
H
B
C
F
I
2-3
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KS-LX200R
KS-LX200R
LCD & Key control section
R641
3.9k
R640
2.7k
R639
1.8k
R638
1.2k
R637
820
R636
820
CN631
6
5
4
3
2
QGF0501F1-06X
R651
220
R647
3.9K
R642
R646
2.7k
R645
R644
1.2k
R643
R635
220
R634
220
1.8k
820
820
QNZ0494-001
IC603
RPM6938-V4
CN601
QGF0501F1-16X
D626
RESET
R629
470
R625
470
R628
R627
120
R630
VDD
MA152WK
Q691
0
INV
1K
PC601
PR-20
2SD601A
KEY1
KEY2
100k
R691
S63
S42
S41
S40
S39
S38
S37
S36
S35
S34
S33
S32
S31
S30
S29
S28
S27
S26
S25
S24
S23
LCDDA
R671
R672
R673
R674
R675
330
QNZ0495-001
S64
LCDCL
330
S65
LCDCE1
LCDCE2
LCDRST
3.3K
3.3K
3.3K
PC602
PR-20
S66
S67
100k
R693
S68
IC601
COM1
COM2
COM3
Q692
2SD601A
LC75873NW
10K
R601
L612
LCDRST
LCDCE1
LCDCL
L611
NQLZ007-680X
C612
LCDDA
0.022
Q612
Q611
2SD2185
2SD2185
1
A
D
E
G
H
B
C
F
I
2-4
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