KS-LX200R
KS-LX200R
SERVICE MANUAL
CASSETTE RECEIVER
KS-LX200R
Area Suffix
E Continental Europe
EX Central Europe
SEL 7 8 9 10 11 12 OFF
KS-LX200R
Contents
Safety precaution 1-2
Disassembly method 1-3
Adjustment method 1-13
Description of major ICs 1-17
This service manual is printed on 100% recycled paper.
No.49573
1-1
COPYRIGHT 2000 VICTOR COMPANY OF JAPAN, LTD.
Oct. 2000
KS-LX200R
Description of major ICs
BA4905-V3 (IC961) : Regulator
1.Pin layout
1 2 3 4 5 6 7 8 9 10 11 12
2.Block diagram
REGULATOR
EXT
37K
5K
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 RESET If VDD voltage becomes 4V or less.RESET output becomes low level.
2 EXT output 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 ACC Control of the COMP output by inputting voltage.
5 VDD output 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 CTRL Output selector of CD. AUDIO, ILM and EXT.
9 VCC To be connected with the BACK UP of car.
10 ILM output 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.
1-17
Overvoltage
protection circuit
KS-LX200R
CXA2510AQ (IC401) : Head AMP / Dolby
1. Pin layout & Block diagram
NR
PBFB2 31 20 MSMODE
120 /70
OFF/
B / C
PBRIN 32 19 DRSW
T2
MS MODE
X1
NR BIAS
PBREF2 33 18 TAPESW
F2
TAPE / AUX
PBFIN2 34 17 INSW
TAPE EQ
NR MODE
VCT 35 16 NRSW
VCT
FWD / RVS
PBGND 36 15 MRMODE
Vcc
MS ON/
OFF
+
LPF
DET
PBFIN1 37 14 MSOUT
-
F1
F3
PBREF1 38 13 DGND
X1
T1
PBRIN1 39 12 MSTC
PBFB1 40 11 G1FB
120 /70
NR
2. Pin functions
Pin No. Symbol
I/O Functions
PBEQ1 O
Resistance for selecting the equalizer amplifier time constant.
1
PBOUT1 O
Playback equalizer amplifier out put.
2
Vcc
- Power supply
3
TAPEIN1 TAPE input.
I
4
AUXIN1 External input.
I
5
MSLPF - Cut-off frequency adjustment of the music sensor LPF.
6
LINEOUT1 Line out.
O
7
TCH1
- Time constant for the HLS.
8
NC
- Non connection.
9
G2FB
- Music signal interval detection level setting.
10
G1FB
11
MSTC Time constant for detecting the music signal interval.
12
DGND
- Logic ground (Connect to GND)
13
MSUOT Music sensor output.
O
14
NC Non connection.
I
15
1-18
-
+
-
+
30
PBEQ2
29
PBOUT2
28
GND
27 TAPEIN2
26
AUXIN2
25
DIREF
24
LINEOUT2
23 TCH2
22 TCL2
21
MSSW
+
-
+
-
Vcc
3
TCL1
9
TCH1
8
G2FB 10
AUXIN
5
PBEQ1
1
MSLPF
6
PBOUT1
2
TAPEIN1
4
LINEOUT1
7
KS-LX200R
Pin Symbol
I/O Functions
NRSW I Dolby NR control L:NR OFF H:NR ON
16
INSW I Line amplifier input select control L:TAPE IN H:AUX IN
17
METAL I Playback equalizer amplifier control L:120us H:70us
18
DRSW I Head select control L:FORWARD H:REVERSE
19
FF/REW I Music sensor mode control Low(open):G1 High:G2
20
MSSW I Music sensor control Low(open):MS on High:MS OFF
21
NC - Non connection
22
TCH2 - Time constant for the HLS
23
LINEOUT2 O Line output
24
DIREF - Resistance for setting the reference current (Connects 20(18)K
25
between DIREF pin and GND for the standard setting.)
NC - Non connection.
26
TAPEIN2 I TAPE input.
27
GND - To ground.
28
PBOUT2 O Playback equalizer amplifier output.
29
PBEQ2 O Resistance for selecting the playback equalizer amplifier time constant
30
PBFB2 I Playback equalizer amplifier feedback.
31
NC - Non connection.
32
PBREF2 O Playback equalizer amplifier reference (Vcc/2 output)
33
PBFIN2 I Playback equalizer amplifier input (FORWARD head connected)
34
VCT O Center (Vcc/2 output)
35
PBGND - Playback equalizer amplifier ground (Connect to ground)
36
PBFIN1 I Playback equalizer amplifier input (FORWARD head connected)
37
PBREF1 O Playback equalizer amplifier reference (Vcc/2 output)
38
NC - Non connection.
39
PBFB1 I Playback equalizer amplifier feedback.
40
NJM4565M-W (IC951,IC171,IC323) : Ope amp.
A OUTPUT 1 8 V+
A -INPUT 2 7 B OUTPUT
AB
A +INPUT 3 6 B -INPUT
V- 4 5 B +INPUT
1-19
KS-LX200R
KA3031 (IC831) : Motor driver
1. Pin layout
48 ~ 37
1 36
~ ~
12 25
13 ~ 24
2. Block diagram
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
-
SW
+
IN1.2 1 36 DO2.1
+ -
ALL MUTE T.S.D
OUT1 2 35 DO2.2
O.V.P
2.5V
IN2.1 3 - 34 PGND3
+
+
+
2P
-
-
-
+
+
IN2.2 4 - 33 DO3.1
2P
-
+ +
+
2P
OUT2 5 - 32 DO3.2
-
-
+
- +
2P
IN3.1 6 31 PGND2
-
+
+
+
2P
-
-
-
+
-
+
2P
-
+
+
+
2P
-
IN3.2 7 30 PGND1
-
-
+
- +
2P
OUT3 8 29 DO4.1
+
D
M
S
2P
S
W
C
28 DO4.2
-
IN4.1 9 D
2P
+
27 DO5.1
D
IN4.2 10
M
S
2P
S
W
C -
D
2P 26 DO5.2
OUT4 11
MUTE4
MUTE3
25 DO6.1
MUTE2
CTL1 12
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
KS-LX200R
3. Pin function
Pin No. Symbol I/O Function Pin No. Symbol I/O Function
1 IN1.2 I CH 1 op-amp input (-) 25 DO6.1 O CH 6 drive outout
2 OUT1 O CH 1 op-amp output 26 DO5.2 O CH 5 drive output
3 IN2.1 I CH 2 op-amp input (+) 27 DO5.1 O CH 5 drive output
4 IN2.2 I CH 2 op-amp input (-) 28 SO4.2 O CH 4 drive output
5 OUT2 O CH 2 op-amp output 29 DO4.1 O CH 4 drive output
6 IN3.1 I CH 3 op-amp input (+) 30 PGND Power ground
7 IN3.2 I CH 3 op-amp input (-) 31 PGND - Power ground
8 OUT3 O CH 3 op-amp output 32 DO3.2 O CH 3 drive output
9 IN4.1 I CH 4 op-amp input(+) 33 DO3.1 O CH 3 drive output
10 IN4.2 I CH 4 op-amp input (-) 34 PGND Power ground
11 OUT4 O 35 DO2.2 O CH 2 drive output
CH 4 op-amp output
CH 5 motor speed
CH 2 drive output
12 CTL1 I 36 SO2.1 O
control
FWD1 I CH 5 forward input 37 SO1.2 O
13 CH 1 drive output
REW1 I CH 5 reverse input 38 DO1.1 O
14 CH 1 drive output
CH 6 motor speed
Power supply voltage
CTL2 39
I PVCC2 -
15
control
(For CH 1, CH 2, CH 3, CH 4)
CH 6 torward input OPOUT Opamp output
16 FED2 I 40
O
CH 6 reverse input OPIN(-) Opamp input (-)
17 REW2 I 41
I
Signal ground OPIN(+) Opamp input (+)
18 SGND - 42
I
CH 1 mute RES50 Regulator 5V reset
19 MUTE1 I 43
I
CH 2 mute SVCC Signal supply voltage
20 MUTE2 I 44
-
CH 3 mute REF Bias voltage input
21 MUTE3 I 45
I
CH 4 mute REG050 regulator 5V output
22 MUTE4 I 46
O
Power supply voltage
REG50 Regulator output
23 PVCC1 - 47
O
(For CH 5, CH 6)
24 DO6.2 O CH 6 drive output 48
IN1.1 I 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
VDD
C1
C4
I/O 4
O/I 4
O/I 3
I/O 3
C2
C3
VSS
I/O 1
O/I 1
O/I 2
I/O 2
KS-LX200R
UPD784215AGC113 (IC701) : UNIT CPU
1.Pin layout
75 ~ 51
76 50
100 26
1 ~ 25
2.Pin function
Pin No. Symbol I/O Function
1 FF/REW O Output for input signal level switching for MS.
2 DOLBY O Dolby on "H" output.
3 MS-OUT O MS output.
4 F/R I Fwd, REV direction switch signal input.
5 HOLD - Non connect
6 TRAYCNT O Tray light control signal output.
7 DIMMER-OUT O Dimmer signal output.
8 LCD-POWER - Non connect.
9 VDD - Power supply terminal.
10 X2 O Connecting the crystal oscillator for system main clock.
11 X1 I Connecting the crystal oscillator for system main clock.
12 VSS - Connect to GND.
13 XT2 O Connecting the crystal oscillator for system sub clock.
14 XT1 I Connecting the crystal oscillator for system sub clock.
15 RESET I System reset signal input.
16 SW1 I Cassette mechanism detect switch.
17 BUS-IN I J-BUS signal cut in input.
18 PS2 I Power save 2.
19 CURUISE I CRUISE signal input.
20 RDS-SCK I RDS selial clock input.
21 RDS-DA I RDS data input.
22 REMOCON I Remove control signal input.
23 AVDD - Power supply terminal.
24 AVREF0 - Connect to GND.
25 NC - Connect to GND.
26 NC - Connect to GND.
27 KEY0 I Key control 0 input.
28 KEY1 I Key control 1 input.
29 KEY2 I Key control 2 input.
30 LEVEL I Level meter signal input.
31 SQ I S.quality level input.
32 S.METER I S.meter level input.
33 AVSS - Connect to GND.
34 W-VOL O Woofer volume signal output.
35 DOT CONT O Dot contrast signal input.
36 AVREF - Power supply terminal.
37 BUS-SI I/O J-BUS data I/O terminal.
38 BUS-SO O J-BUS data output.
39 BUS-SCK I/O J-BUS serial clock signal I/O.
40 STAGE2 I Initial setting.
41 LCD-DA O Data output for LCD driver.
42 LCD-CL O Clock otput for LCD driver.
43 LCD-LEI O Chip enable 1 output for LCD driver.
44 BUZZER O BUZZER control signal output.
45 E2PR-DA-I I Data input terminal from EEPROM.
46 E2PR-DA-O O Data output terminal from EEPROM.
47 E2PR-CLK I/O Data input terminal from EEPROM.
48 BUS-I/O I/O J-BUS I/O signal terminal.
49 TM0 O Tray motor negative signal output.
50 TM1 O Tray motor positive signal output.
1-22
~
~
KS-LX200R
Pin No. Symbol I/O Function
51 DM0 O Door motor negative signal output.
52 DM1 O Door motor positive signal output.
53 ST I Stereo signal input.
54 LOCAL - Non connect.
55 MONO O Manual ON/OFF select signal output.
56 CA-SW1 I DOOR/TRAY open/close detect switch signal input.
57 CA-SW2 I DOOR/TRAY open/close detect switch signal input.
58 CA-SW3 I DOOR/TRAY open/close detect switch signal input.
59 CA-SW4 I DOOR/TRAY open/close detect switch signal input.
60 CA-SW5 I DOOR/TRAY open/close detect switch signal input.
61 VCR-CONT - Non connect.
62 AFCK O AF check output.
63 SEEK/STOP O AUTO SEEK/STOP select signal output.
64 SD I Station detector input.
65 FM/AM O FM/AM select signal output.
66 PLL-CE O Chip enable signal output.
67 PLL-DA O Data output.
68 PLL-CK O Clock signal output.
69 BAND IN I AM detect signal input.
70 TEL-MUTE I Telephone.
71 AMP KILL - Non connect.
72 VSS - Connect to GND
73 DIMMER-IN I DIMMER signal input.
74 DSI I Power save 1.
75 POWER O Power ON/OFF select signal output.
76 CD-ON - Non connect.
77 MUTE O Mute signal output.
78 W-LPF1 O Woofer LPF 1 signal output.
79 W-LPF2 O Woofer LPF 2 signal output.
80 W-MUTE O Woofer mute signal output.
81 VDD - Power supply.
82 VOL-DA O Data output.
83 VOL-CLK O Clock signal output.
84 CF-SEL I CF select signal input.
85 NC - Non connect.
86 LCD RST O LCD reset signal output.
87 LCD-CE2 O Chip enable 2 output.
88 DMK O Motor speed control signal output.
89 TMK O Tray motor control signal output.
90 STAGE1 I Initial setting.
91 MOTOR O Mecha Motor signal output.
92 MODE I Mecha mode position detection input.
93 STANDBY I Standby position derection input.
94 TEST I Test terminal
95 TAPE-IN O Cassette in detection input.
96 SUBMO- O Sub motor clock direction drive output.
97 SUBMO+ Sub motor clock oppositte direction drive output.
98 TAPE-END I Tape end detection input.
99 KICK O Kick output.
100 VOICE IN I Voice control signal input.
1-23
KS-LX200R
BD3860K (IC911) : E. volume
1. Pin layout
33 ~ 23
34 22
44 12
1 ~ 11
2. Block diagram
GND FIL VCC SEL1 VIN1 LOUD1 HF1 LF1 DET1 VCA1 MIX1 BBOUT1 TIN1 TNF1 BNF1 BOUT1
6 5 9 40 36 35 34 33 28 32 31 30 29 19 15 14
POWER
FADER
SUPPLY
MAIN
INPUT
CH1 FRONT
13 OUTF1
TREBLE BASS
VOLUME
GAIN 0 to -5 dB
LOW(f=50Hz) 6dB
0 to -40 dB
PROCESS CONTROL +3 to 12dB -14 to +14dB -14 to +14dB
A1
41
LOUDNESS
0 to 18 dB
(f=10kHz)
FADER
B1
42
CH1 REAR 12 OUTR1
0 to -5 dB
C1
43
SI
7
D1 44
INPUT
SC
LOGIC 8
FADER
SELECTOR
A2 CH2 REAR 10 OUTR2
1
0 to -5 dB
B2
2
MAIN
INPUT
TREBLE BASS
VOLUME
GAIN
C2 3
LOW(f=50Hz) 6dB FADER
0 to -40 dB
-14 to +14dB -14 to +14dB
PROCESS CONTROL +3 to 12dB CH2 FRONT OUTF2
11
LOUDNESS
0 to 18 dB
D2
4
(f=10kHz) 0 to -5 dB
39 38 37 25 24 26 23 22 21 20 18 17 16
SEL2 VIN2 LOUD2 HF2 LF2 DET2 VCA2 MIX2 BBOUT2 TIN2 TNF2 BNF2 BOUT2
3. Pin function
Pin Pin
Symbol Function Symbol Function
No. No.
1 A2 CH2 input terminal A 23 VCA2 CH2 high frequency VCA output terminal
2 B2 CH2 input terminal B 24 LF2 CH2 low frequency filter setting terminal
3 C2 CH2 input terminal C 25 HF2 CH2 high frequency filter setting terminal
4 D2 CH2 input terminal D 26 DET2 CH2 high frequency attack release time setting
5 FIL 1/2 VCC terminal 27 NC Non connect
6 GND Ground terminal 28 DET1 CH1 high frequency attack release time setting
7 SI Serial data input terminal 29 TIN1 CH1 treble input terminal
8 SC Serial clock input terminal 30 BBOUT1 CH1 BBE II signal output terminal
9 VCC Power supply 31 MIX1 CH1 output mix amp. negative input terminal
10 OUTR2 CH2 rear output terminal 32 VCA1 CH1 high frequency VCA output terminal
11 OUTF2 CH2 front output terminal 33 LF1 CH1 low frequency filter setting terminal
12 OUTR1 CH1 rear output terminal 34 HF1 CH1 high frequency filter setting terminal
13 OUTF1 CH1 front output terminal 35 LOUD1 CH1 loudness filter setting terminal
14 BOUT1 CH1 bus filter setting terminal 36 VIN1 CH1 main volume input terminal
15 BNF1 CH1 bus filter setting terminal 37 LOUD2 CH2 loudness filter setting terminal
16 BOUT2 CH2 bus filter setting terminal 38 VIN2 CH2 main volume input terminal
17 BNF2 CH2 bus filter setting terminal 39 SEL2 CH2 input gain output terminal
18 TNF2 CH2 treble filter setting terminal 40 SEL1 CH1 input gain output terminal
19 TNF1 CH1 treble setting terminal 41 A1 CH1 input terminal A
20 TIN2 CH2 treble input terminal 42 B1 CH1 input terminal B
21 BBOUT2 CH2 BBE II signal output terminal 43 C1 CH1 input terminal C
22 MIX2 CH2 output mix amp negative input terminal 44 D1 CH1 input terminal D
1-24
~
~
KS-LX200R
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
DRIVER VCO STOP
VCO
PC LPF
FF PACAN
LPF SCHMIT
PD
SEPARATION
ADJ.
SUB
HPF LPF
ANTI-BRIDGE
MAIN
GATE
DECODER
HCC
SNC
TRIG
AGC
CONTROL
1 2 3 4 5 6 7 8 9 10 11 12
3. Pin function
Pin
Function Description
No.
1 Noise sense Noise sensitivity adjustment
2 Noise AGC
3 Gate time
4 Signal hold
5 Pilot output
6 Vcc Vcc=+8.0V
7 Capacitor for HCC High pass filter
8 SNC control Stereo noise controlled voltage
9 HCC control High cut controlled voltage
10 Lch output
11 Rch output
12 Pican input pilot cancel signal input
13 Pican output pilot cancel signal outpt
14 Separation ADJ
15 NC
16 NC
17 456kHz OSC Ceramic resonator
18 Phase comp LPF (+) Phase comparator low pass filter
19 Phase comp LPF (-) Phase comparator low pass filter
20 GND
21 PLL input Phase locked loop signal input
22 Stereo indicator Active low
23 Composite input Composite signal input
24 Pilot det LPF
1-25
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
No. No.
1 TAB Header of IC 14 LFIN Front Lch input
2 GND1 Power GND 15 LRIN Rear Lch input
3 RFO- Output (-) for front Rch 16 ONTIME Power on time control
4 STBY Stand by input 17 LRO+ Output (+) for rear Lch
5 RFO+ Output (+) for front Rch 18 GND3 Power GND
6 VCC1/2 Power input 19 LRO- Output (-) for rear Lch
7 RRO- Output (-) for rear Rch 20 VCC3/4 Power input
8 GND2 Power GND 21 LFO+ Output (+) for front
9 RRO+ Output (+) for rear Rch 22 MUTE Muting control input
10 R.F Ripple filter 23 LFO- Output (-) for front
11 RRIN Rear Rch input 24 GND4 Power GND
12 RFIN Front Rch input 25 NC Non connection
13 SGND Signal GND
1-26
TA B
GND1
OUTFR+
STBY
OUTFR-
VCC1/2
OUTRR+
GND2
OUTRR-
VREF
INRR
INFR
SGND
INFR
INRL
ONTIME
OUTRL+
GND3
OUTRL-
VCC3/4
OUTFL+
MUTE
OUTFL-
GND4
NC
OUT 3+
PWR GND3
OUT 4+
OUT 4-
PWR GND4
OUT 2-
MUTE
OUT 3-
PWR GND2
OUT 1-
OUT 2+
8
PWR GND1
9
OUT 1+
5
2
21
24
22
23
18
17
+
20
Mute
circuit
VCC3/4
Protective
circuit
Protective
circuit
+
+
-
-
7
-
+
+
-
3
+
-
-
19
-
+
+
-
6
VCC1/2
Ripple
filter
Stand by
switch
Muting &
on time control
circuit
4
12
10
25
13
14
16
R.F
N.C
TA B
1
IN 1
11
IN 2
IN 3
15
IN 4
ST BY
ON TIME
PRE GND
KS-LX200R
LC75873NW (IC601) : LCD driver
1.Block diagram
VDD1
COMMOM
SEGMENT DRIVER
DRIVER
VDD2
INH
CLOCK
OSC
SHIFT REGISTER
GENERATOR
VDD
VSS
ADDRESS
DETECTOR
2.Pin functions
Pin No. Symbol Description
I/O
1~66 S3~S68 O Segment Output.
67~69 COM1~3 O Common Driver Output.
70 VDD - Power Supply Connection.
71 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.
72 VDD2 I 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.
73 VSS - Power supply connection.
74 OSC I/O Oscillator connection. An oscillator circuit is formed by connecting an
external resistor and capacitor to this pin.
75 INH I Display off control input.
76 CE I Chip enable input.
77 CLOCK I Synchronization clock input.
78 DI I Serial data input.
79 S1 O Signal output.
80 S2 O Signal output.
1-27
S5
S4/P4
S3/P3
S2/P2
S1/P1
S68
S67
COM3
COM2
COM1
KS-LX200R
BA3220FV-X (IC301) : Driver
1. Pin layout & Block diagram
CL- LGND OUTL OUTR RGND CR - CR +
14 13 12 11 10 9 8
REFL REFR
FILTER
14 5 7
2 36
CL+ Vcc INL NFL FIL NFR INR
2. Pin function
Pin
Symbol Function
No.
1 CL+ Powe supply terminal for amp.
2 Vcc power supply terminal.
3 INL input terminal.
4 NFL Negative feedback terminal.
5 FIL Filter terminal.
6 NFR Negative feedback terminal.
7 INR Input terminal
8 CR+ Power supply terminal for amp.
9 CR- Output terminal of internal amp.
10 RGND Rch GND terminal.
11 OUTR Rch output terminal.
12 OUTL Lch output terminal.
13 LGND Lch GND terminal.
14 CL- Output terminal of internal amp.
1-28
KS-LX200R
BR24C32F-X (IC703) : EEPROM
1. Pin layout
Vcc WP SCL SDA
A1 A2
A0 GND
2. Block diagram
A0 1
8 Vcc
32k bit EEPROM ARRAY
8bit
12bit
SLAVE/WORD
ADDERESS DATA
A1 2
7 WP
12bit
ADDRESS REGISTER
DECODER REGISTER
START STOP
A2 3
6 SCL
CONTROL LOGIC
ACK
GND 4 HIGH VOLTAGE GEN.
Vcc LEVEL DETECT 5 SDA
3. Pin function
Pin No. I/O Functions
Vcc - Power supply
GND - Ground (0V)
AO,A1,A2 IN Slave address set
SCL IN Serial clock input
SDA I/O Slave and word address/Serial data output
WP IN Write protect input
1-29
KS-LX200R
SAA6579T-X (IC51) : RDS demodulator
1. Pin layout 2. Pin function
Pin
Symbol Function
No.
1 QUAL Quality indication output
1 16
2 RDDA RDS data output
2 15
3 Vref Reference voltage output (0.5VDDA)
3 14
4 MUX Multiplex signal input
4 13
5 VDDA +5V supply voltage for analog part
6 VSSA Ground for analog part (0V)
5 12
7 CIN Sub carrier input to comparator
6 11
8 SCOUT Sub carrier output of reconstruction filter
7 10
9 MODE Oscillator mode / test control input
8 9
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 OSCO VDDD
3. Block diagram
13 14 12
ANTI- 57kHz
OSCILLATOR QUAL
4
1
QUALITY BIT
RECONSTRUCTION
MUX ALIASING BAND PASS
AND
GENERATOR
FILTER
FILTER (8th ORDER)
DIVIDER
8
SCOUT
COSTAR LOOP
BIPHASE RDDA
7
CLOCKED 2
DIFFERENTIAL
CIN
VARIABLE AND SYMBOL
COMPARATOR DECODER
DECODER
FIXED DIVIDER
5
16
VDDA Vp1 RDCL
CLOCK
3 15
TEST LOGIC AND OUTPUT
REFERENCE
Vref REGENERATION T57
SELECTOR SWITCH
VOLTAGE
AND SYNC
6 91011
VSSA MODE TEST VSDD
IC-PST600M/G/-W (IC702) : System reset
1
IN
3
Vout
Co1
OP1
2
OUT
1-30
KS-LX200R
HD74HC126FP-X (IC771) : Buffer
1. Pin layout 2. Pin function
Inputs Outputs
1 14
C A Y
2 13
L X Z
3 12
H L H
4 11
H H L
5 10
6 9
7 8
3. Block diagram
Vcc Vcc
1k
1A Output
1Y S1
2A
3A
Input 2Y
4A CL
1k
1C
2C
Output
3C
2Y
Sample as Load Circuit 1
4C
Output
3Y
Sample as Load Circuit 1
Output
4Y Sample as Load Circuit 1
RPM6938-SV4 (IC602) : Remote control receiver
Vcc Vcc
AGC
22k
ohm
AMP
Comp
Rout
I/V
BPF
Detector
conversion
PD for
trimming
circuit
GND
magnetic shield
1-31
See Function Table
KS-LX200R
M5282FP-XE (IC321) : E. volume
1. Pin layout 2. Block diagram
10
1 10
1
2 9
3 8
2
4 7
9
5 6
3
4 5 7 8
3. Pin function
Pin
Symbol Function
No.
1 Vcc/2 Vcc/2 output for microphone amp.
2 Amp+IN Microphone amp. positive input terminal.
3 Amp-IN Microphone amp. negative input terminal.
4 Amp OUT Microphone amp. output terminal.
5 GND Ground.
6 NC Non connection.
7 VCA IN VCA input terminal.
8 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 VZ IN1 IN2 VCC2 P2 OUT2
VCC1
2. Pin function
Input Output
Mode
IN1 IN2 OUT1 OUT2
0 0 0 0 Brake
1 0 1 0 CLOCKWISE
0 1 0 1 COUNTER-CLOCKWISE
1 1 0 0 Brake
1-32
KS-LX200R
Block diagram
6
IC301
FMDET.ADJ
LOUTFL
TU1
L-ch IC911 INFL
IC31
Lch LINE
SEPA.ADJ
LOUTRR
TUNER PACK
R-ch E.VOL. INRL
MPX
AMP.
FRONTL
M
FM/AM
STANDBY,TAPEEND
RDS
ST
FRONTR
Lch,Rch S.METER
IC401
INFR
ROUTFL
IC401
MSOUT SD/ST
Rch LINE
IC51
INRR
ROUTRR
HEAD AMP
NRSW PLLCE
REARL
AMP.
Lch,Rch RDS
FF REW PLLDA
REARR
HEAD COMMON
AU.L
PLLCL
5 M AU.R
MODE,F/R,TAPE IN
TAPE.L
TAPE.R VOLDA
IC901
SUBMO
IC402
VOLCLK
IC701
POWER AMP.
MOTOR
IC321 IC323
SUBMO ,TAPE IN CPU
DRIVER SUBMO
W.VOL E.VOL OPE.AMP.
STANDBY,MODE
MOTOR,FF REW
WLPF1
DOLBY,MSOUT,F/R IC322
WLPF2
SI/SO SWITCHING
LED &
4
KEY0,KEY1 SCL SO,I/O
KEY MATRIX
SDDA BUSINT
CH.L
BUSSCK
CH.R
IC703 SCK,SI/SO
IC771
IC603
EEPROM
JVC-BUS
REMOCON
LCD1
REMOCON
DOTCONT
COM1~3
LCDRST,LCDCE1
3
REMOCON,KEY1
S1~S86
LCDCL,LCDDA IC951
KEY2,LCDCA
OPE.AMP.
LCDCL,LCDCE1 IC171
KEY1
IC601
LINE IN
KEY2
LCD DRIVER
RESET
FRONTL
EACH
FRONTR
KEY
BLOCK
REARL
MATRIX
REARR
TM0
2
TM1
TRAY
IC961
DM0
MOTOR
REG.
AULI
TRAY DM1
AURI
M
CN771
IC831 CN901
CD-CH
DOOR
DRIVER
SUB LINE IN LINE OUT
MOTOR
WOOFER
M
OUT
DOOR
1
A DE G H
BC F I
2-1
CP401
CP402
CN703
CP403
CN631
CN702
CN601
CN701
CN504
CN503
KS-LX200R KS-LX200R
Standard schematic diagrams
Main amp. section
C163 D161
R162
12K 1SS355
0.047
IC941 LA4743B
C161
Q161
2SD601A
TU1
1/50
R165 R303
QAU0157-002
33K
390
6
IC301 BA3220FV
C307
100/10
C305
4.7/25 24K C308 4.7/25
R3
R301
C301 C309
10 Q1 4.7/25
C120
47/16 4.7/25
C141
R4 UN2211
1/50
C303 C310
470P
C306
10K
L1 4.7u C302 R302
24K 100/10
4.7/25
C142
4.7/25
C11 1/50
D3 PP3
R305 R304
1SS355
150K
0.047
IC911 33K
BA3860K
PP4 R2 RDSDA
C218
100K
0.047 R403
GND
R354 C241
C354 33K
1/50
0.1
6.8K IC401 BA3220FV
Q13 C352 C220 470P C407
100/10
R11 2SB709A
Q11 C44 1/50 0.01 R355 C355
C40 C242
1/50 220K 470P C219 10/16 1/50
8.2( 1/8W) 2SB815 R40
R454 C454
0.1 C357 0.0047 C405 4.7/25 R401 C408
R941
5.6K 4.7/25
Q21 C43 1/50 6.8K C457 0.0047 4.7/25 C401 24K
R942
27K
2SC2412K C455 R455 C409
C39 C459 0.22 47/16
470P 27K
R458 3.3K 4.7/25 R943
R43 100K C42 1/50 0.1/50 220K C458 0.22 C403
5 R118 C112
C41 C356 C456 10/16 C358 0.22 C406 C402 R402 1K
0.01 C410
CH.L 100 10/16 R358 3.3K 4.7/25 4.7/25 24K
100/10
4.7/10
TAPE.L R119 0 C359 0.22 R404
R405
Q33
RDSSCK 150K Q942
Q12 X51 1/50
R120
2SD601A 33K
UN2211
UN2211 C104
FM/AM 10K
R45
47K
C327
Q34 R323 R327
S.METER C212 C322 0.01 0.082
R218
UN2111
10K 5.6K
CH.R 100
10K R324
AMAF 4.7/10 R322
Q23
TAPE.R R219 0 R328
R37 D101 100K
2SC2412K 15K
MA152WK GND R22010K
1/50
R27 2.2K R101
SQ
470 C204
UN2211 10K
C22 C103 0.22/50
C24
Q32 R954 VOL-CLK LEVEL
R201
0.1 10K
R451 220k C321 VOL-DA
0.01
10K
C203 0.22/50 R452 220k
D201 10/16
MA152WK D451
MA152WK
Q24 C325 C328 SUBW
R326
R329
UN2211 0
W-VOL 10K
0.0068
2.2/50
C921 100P
CN703
Q35 GND C922 100P
2SB709A R177
R175 R174
TAPE.L AU.L C173 R332 100K C923 100P
4 Q132 Q232
GND 1K 10k 8.2K 22/6.3 C924 100P
2SD1048 2SD1048
R176 R173
TAPE.R Q36 C172 W-LPF2 0.0056 C925 100P
C331
F/R UN2211 10k 8.2K 10/16 C926 100P
R344
Q321 C927 100P
1M R343
SW14V UN2211 C928 100P
1M D961
MSOUT IC171
1N5401TU
DOLBY NJM4565M
FF/REW
R951
C951 0.1 C961
MOTOR VSS
2200/16
5.6K
DOTCONT R276
R273
MODE C272
10/16
STANDBY 10k 8.2K
R277
R275 R274
TAPE-IN AU.R C273 MEMORY
SUBMO- 1K 10k 8.2K R334
5V22/6.3
R341 R342
SUBMO+ R735 4.7K L701 47u R321
47K
TEL
D962
TAPE-END R734 4.7K W-LPF1 1M 1M 1K
CRS03-W
Q322 ILL
IC703 BR24C32F
KICK R733 47K
R961
UN2211
R732 47K
Q324 1K( 1/8W)
CN704
R731 47K
QGA1201C2-04X C710
UN2211
CASW1
220/10 W-MUTE
CASW2
MUT
IC701
CASW3
UPD784215GC-XXX
AU.LI
C711
NSW0120-002X S651
CN301
3 VDD 470P AU.G CN901
NSW0120-002X S652 QGA2501C1-07
QNZ0090-001
AU.RI
Q977 Q979
NSW0120-002X S653
UN2111 UN2111
MUTE
CN504
R723
QGA2501F1-02 W-LPF1
Q966 IC961 BA4905
W-LPF2 I/O
TRAY- 1K TD 2SB709A
R970
W-MUTE
TRAY+
R722 10K 12K
DOOR+
VOL-DA R721 10K
C712
DOOR- 0.047 RD
VOL-CLK R720 330 BUZZER
CFSEL R766 2.2K R719 1.8uH LCDCE1
CN503
QGA2501F1-02 CASW4
R718 1.8uH LCDCL
CASW5 330 R752
R767 LCDDA
CN702
QGF0501F1-06X
R758 330 R717 4.7K 47K
TRAY10V DMK R716 4.7K BUSSCK
TMK R715 4.7K SO DIMIN Q964
2SB709A
R740 47K SI/SO AU.LI
D963
C719 MOTOR DOTCONT AU.G
MA152WA
KEY0
MODE W-VOL AU.RI
KEY1
470P R964
STANDBY Q983 SUBW R338
R742 R714 10K S.METER 2SD601A 47k GND 100
TELMUTE
RESET TAPE-IN 10K R713 10K SQ Q981 R339
UN2111
ACC5V SUBMO- LEVEL 100
Q982
10V SUBMO+ R712 10K GND
UN2211
TAPE-END R711 10K KEY2
2
REMOCON KICK R743 R710 10K KEY1
Q963
KEY1 47K KEY0 Q986 UN2213
R709 4.7K
KEY2 R746
UN2211
R708 4.7K
47K
DOT
R707 4.7K
LCDDA VPP
LCDCL SCK
LCDCE1 R747 47K CH.L
R748 47K R775
R749 47K 10k
R776
Q991
R750 47K
100k TAPE REC SIGNAL
SI/SO
X1 R777
CH.R
HOLD
UDZS5.1B-X
TUNER SIGNAL
CN701 22K
QGF0503C1-16V R778
R781
330
14V 100
CD-CH SIGNAL
DM0
IC702 LINE IN SIGNAL
PST600MG DM1
R774
X701 X702 100 DMK
Q702
TM0 FRONT SIGNAL
2SB815 R706
TM1
RESET
10K
IC771 TMK
REAR SIGNAL
HD74HC126FP
PP1 R831
Q791
UN2211
4.7K
1
IC831
R793
PP2
R833
KA3031
Parts are safety assurance parts.
Q701
0 3.3K
UN2211
When replacing those parts make
sure to use the specified one.
A DE G H
BC F I
2-2
180K
1SS355
D162
R167
270K
C164
0.22/50
R161
47K
R164
R163
22K
R166
1K
C162
22/16
82K
C942
C941
47/16
C353
1/25
0
R1
SEEK
IFBW
SD
PLLCE
PLLDA
J1
4.7/25
C10 100P
C119
10/16
C913
0.1
C452
0.01
C451
0.1
R353
1M
C351
0.1
C118
0.047
AMAF
R141
47K
QAM0105-002
D111
C144
330P
C943
0.01
2.2/50
MA152WK
C57
C8
0.1
PLLCK
C56
R54
CFSEL
220/10
C5
0.022
2.2k
0.047
VR1 C9
C55
560P
C4
22/16
C1
0.047
C3
0.01
C2
22/16
D1
1SS355
D2
1SS355
220K
220K
C243
330P
C143
330P
C244
330P
R211
R111
0.018
R241
47K
R142
47K
R242
47K
R146
47K
R144
82K
R245
47K
R143 82K
R244
R246
47K
R145
47K
IC51
SAA6579T
R14
82K
R243
CF31
C6
QAX0605-001
R12
47K
R52
C38
VR31
50K
C7
0.047
D11
R13
MA152WK
4.7K
R41
1M
C944
10/16
R15
47K
D941
1SS355
R44
1K
R42
UN2111
470
Q31
C54
0.01
C53
47/6.3
IC31
R51
2.2k
100
R351 220K
R352 220K
LA3460
C52
47P
R53
C51
2.2k
82P
QAX0263-001
C323
47/16
C37
R39
22K
D351
R26
15K
0.01
MA152WK
D131
D231
MA152WA
R21
47K
MA152WA
C329
R912
2.2K
R911
2.2K
0.0015
R28
68K
MUT
0.001
C33
R325
100K
R33 2.2K
0.015
0.015
820
47K
C35
22/16
C36
R25
10K
IC321
IC323
R22
2SC2412K
3.3K
47K
C45
1/50
R202 22K
C202 680P
R102 22K
C102 680P
C25
R38
18K
C32
0.47/50
R32
470K
R31
C34
12K R34
M5282FP
R131
2.2k
R132
2.2k
R232
2.2k
R231
2.2k
C912
NJM4565M
R133
680
R335
C21
C23
R24
R23
10K
2.2K
Q22
C31
0.01
0.0068
3.9K
R35
33K
R36
100/10
R340
470K
0.47/50
330P
0.0047
C101
68K
C201
C46
1/16
AU.L
AU.R
C952
C911
47/16
C914
0.047
10/16
47K
Q323
R336
2.2/50
C335
R330
R331
100K
2.2/50
C324
10/16
Q131
Q231
R234
680
2SD1048
2SD1048
R134
680
2SD1048
R233
680
0
D31
R47
1SS355
R337
4.7K
R333
47K
C330
0.012
R953
TH951
IC951
D332
10K
MA152WK
R730
R728
NJM4565M
NAD0021-103X
R46
R135
100
R136
100
R236
100
R235
100
1K
5.6K
R952
C175
C174
R272
R172
100k
100k
0.022
DM1
10K
REF
DM0
TM1
DOT
TM0
47/6.3
IC322
9V
BU4066
L961
CASW5
68K
CASW4
CASW3
CASW2
CASW1
14V
Q325
UN2111
QQR0703-001
MUTE
47K
DIMIN
R739
TELMUTE
10K
ACC5V
C334
C333
C332
R738
PON
0.033
0.027
0.027
R765
2.2K
IFBW
R764
2.2K
PLLCK
R763
2.2K
PLLDA
R762
2.2K
PLLCE
R757
47K
FM/AM
R761
10K
SD
R737
10K
SEEK
R736
1K
R978
100K
CRS03-W
0.1
C968
D967
R976
2.2K( 1/8W)
R977
2.2K( 1/8W)
C932
0.047
C931
100P
C962
2.2/50
R725
270
R724
270
R971
39K
Q965
R962
9.1K
C978
D980
D978
C977
47/16
UN2211
47/6.3
UDZ11B
1SS355
C336
0.047
R178
470
C337
0.047
CN302
QGA2501C1-06
TH981
NAD0021-103X
1K
R984
47k
R975
120K
R987
47K
R986
D701
CRS03-W
47K
R981
R963
4.7K
D986
R965
2.2K
MA152WA
R985
C966
0.01
C969
10/16
C964
220/10
C965
220/10
C971
22/16
0.1
C117
0.1
C982
10/16
9V
TEL
ILL
10K
14V
CD8V
ACC5V
10V
DIMOUT
SO
C986
I/O
SCK
PON
CD8V
SI/SO
TRAY-
C967
22/16
TRAY+
DOOR-
PON
D00R+
BUSINT
R786
47K
R790
47K
R785
47K
R787
47K
R788
47K
MEMORY
R784
47K
R789
47K
R783
47K
CN771
QNZ0095-001
820
R702
10M
0.0022
0.0022
0.0022
FF/REW
DOLBY
MSOUT
F/R
DIMOUT
C724
C722
C723
D702
D703
100K
BUSSCK
RDSSCK
RDSDA
REMOCON
C831
100/10
C832
0.01
CD8V
1K
R994
1K
10V
R791
BZ791
BUZZER
TRAY10V
R993
R992
QAN0009-001Z
RESET
47K
R779
Q992
2SA1706/ST/-T
SW14V
47K
CRUISE
R768
UN2211
VDD5V
47K
22k
R782
R772
R773
C705
470P
C713
18K
R703
47K
BUSINT
R704
47K
C771
R991
10K
47K
1K
0.047
R794
47K
C791
220/6.3
8P
R705
D711
27P
QAX0617-001
27P
47K
22P
QAX0445-001
SW1
0.1/50
C704
C703
C702
R701
R751
C701
1SS355
C707
0.01
C708
10/6.3
R834
3.9K
R832
4.7K
KS-LX200R
Mecha. control section
6 Q401
CP401
2SA1706/ST/-T
QGA2001F1-07
Q402
DTC114EKA
5
R406
300K
C406
0.01
CP402
QGB1214K1-10S
4
R420
C405 15K
22/16
IC401
C416 0.1
IC402
R419
LB1641
1.2M
3
C409
C418
0.01
0.01
R410
C419
0.1
300K
Q403
D403
DTC114EKA
MA3075( M)
2
CP403
QGB1214K1-18S
1
TAPE REC SIGNAL
A DE G H
BC F I
2-3
47K
R421
D401
R422
3.3K
DSK10C
0.1
C408
18K
R409
33K
VR201
18K
12K
R408
R407
C407
1/50
C404
180
100P
R404
180
R405
100P
C401
470P
C402
470P
R402
100K
R403
100K
C403
22K
R418
R411
R401
2.2K
1K
R414
C415
12K
18K
R412
1K
R417
0.01
33K
R415
3.9K
VR101
33
8R2
C417
10K
R423
3.3K
R424
R425
R416
10/16
0.1
100
1/50
C412
100P
R413
C411
C413
D402
C414
C410
22/16
MA3036( L)
0.47/50
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
QGF0501F1-06X
R651 220
R647
R646 R645 R644 R643 R642
1.8k R635 1.2k 820 820 R634
3.9K 2.7k
220 220
5
QNZ0494-001
IC603
RPM6938-V4
CN601
QGF0501F1-16X
D626 RESET
R629
R625
470
R628 R627
4 470
R630
MA152WK Q691 VDD 0 120 INV
1K
PC601 2SD601A
KEY1
PR-20
100k
KEY2
R691
S63 S42 LCDDA R671 330
QNZ0495-001
S64 S41 LCDCL R672 330
S65 S40 LCDCE1 R673 3.3K
PC602
S66 S39 LCDCE2 R674 3.3K
PR-20
S67 S38 LCDRST R675 3.3K
100k
S68 S37
IC601 R693
COM1 S36
COM2 S35
Q692
COM3 S34
2SD601A
LC75873NW
S33
10K S32
S31
R601
L612 S30
S29
LCDRST S28
L611
LCDCE1 S27
NQLZ007-680X
3 LCDCL S26
C612
LCDDA S25
0.022
S24
S23
Q612
Q611
2SD2185
2SD2185
2
1
A DE G H
BC F I
2-4
220
220
S637
S636
R633
S635
S634
R632
S633
S632
D656
D655
S631
390
390
R655
R656
220
R652
QSW0856-001X
QSW0856-001X
QSW0856-001X
QSW0856-001X
QSW0856-001X
QSW0856-001X
NSW0041-001X
CL-190UB-X-X
S643
S642
S641
S639
S638
S640
QSW0856-001
CL-190UB-X-X
QSW0856-001
QSW0856-001X
QSW0856-001X
QSW0856-001X
QSW0856-001X
S25
S26
S27
S28
S29
S30
S31
S32
S33
S34
S35
S36
S37
S38
S39
S40
S41
S42
S43
S44
S45
S46
S47
S48
S49
S50
S51
S52
S53
S54
S55
S56
S57
S58
S59
S60
S61
S62
S63
S64
S65
S66
S67
S68
COM3
COM2
COM1
10V
10K
R626
S62
S61
S60
S59
S58
S57
S56
S55
S54
S53
S52
S51
S50
S49
S48
S47
S46
S45
S44
S43
C625
D625
4.7/6.3
MA3051/M
39k
R692
S24
S23
S22
S21
S19
S18
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
39k
R694
10V
S20
INV
KEY1
RESET
47U
L613
S625
S621
390
R622
R621
220
220
R676
220p
10K
220K
R602
R603
C601
4.7/6.3
C604
680
D627
R613
R604
820
820
KEY2
R624
R623
C613
15P/3.15k
C602
0.1
C603
0.1
10K
LT1F67AF-W
D624
D623
D622
D621
4.7k
4.7k
S624
S623
S622
R612
R611
BL611
0.1
C611
10/10
C614
C615
5600P
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
S16
S17
S18
S19
S20
S21
S22
QLL0059-001