Technics STHD-501 Schematic

SCHEMATICDIAGRAM 1

TUNER CIRCUIT

A

JK101

FM ANT (75ohm)

AM ANT

EXT

LOOP

L101

0.68uH

0.01

C110

Z120 FM FRONT END (RAL0035)

22P

1

2 3 4 5

R110

F=7.2MHz

1K

FM/AM

1P

15P

0.47uH

18P

100K

0.022

L102

0.68uH

Z101

6A

5

AM ANT AM OSC

C136

1000P

R114

5.6K

1.9V P P

2.1V P P

2.7K47P

8P

33K

C134

1

2

34

27P

:POSITIVE VOLTAGE LINE

2SK238

RF AMP

8P

100K

C107

0.047

(7.2MHz)

Ca

22

7P

33K

0.022

100

2SK360

FM OSC

8P

3P

A

R112

X103

20 19 18 17 16 15 14 13 12 11

1 2 3 4 5 6 7 8 9 10

R138

10K

R130

10K

100K

6

5

8.2P

C108

100K

R113

27P

C112

C133

0.01

2.6V

Vss

X OUT

XIN

CE

2.6V 0V 0V 0V 1.2V 3.7V 3.7V 0V 0V

330

8P

10K 10K

A

1

2

34

10K

(3.8V)

2.9V 0.9V 0.9V 5.2V 2.5V 0V 4.1V 0V

A OUT

DI

C111

R115

25V4.7 560

AIN

CL

R116

1K

C125

B

C

D

16V22

D101

MA4051MTA

PD

IC102 LC72131MDTLM

PLL FREQUENCY SYNTHESIZER

DO

33K

2SC2996

BUFFER AMP

33P

1.2K

DD

V

AM

4P

:FM SIGNAL LINE :FM OSC SIGNAL LINE

2SC2620

FM MIXER

4P

1P

22P

1uH

220P

220

0.022 16V100

470K

2P

2SC2996

18P

BUFFER AMP

L103

0.47uH

C113

C132

C130

1000P

(0V) (2.5V) (0V)

FM IN

AM IN

MONO

SDC

STRQ

LW

R133

1K

1.5M

330

6.3V100

FM IF IN

(14.8V)(4.2V)(0V)

R132

:AM SIGNAL LINE :AM OSC SIGNAL LINE

10K

150

0.022

15P

8

R111

390

R128

82

68K

R117

R129

27K

C124 100P

10K

7

R103

0.01

C102

100

16V100

6

C101

A

B

C

D

E

F

V

FM

8.1V

1.6V

87.5MHz 108MHz

V

AM

4.6V

0.9V

F

522kHz 1629kHz

R1371KR1361KR1351KR134

ABCD

F

1K

SCHEMATICDIAGRAM 2

:POSITIVE VOLTAGE LINE :FM SIGNAL LINE :AM SIGNAL LINE :AM OSC SIGNAL LINE

+B

FM LINE

A D

R118

B C

R104

10K

C103

CF201

13

2

IC101 LA1833MN

FM/AM IF AMP, DET/AM OSC,MIX/FM MPX

C114

C109

50V3.3

3.3K

(4.2V)

3.7V

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

OSC OUT

R109

330

0.01

R105

470

C104

1000P

R106 470K

(0V) 12V

(0V)

0.7V

Q101 2SC2787LTA

FM IF AMP

22K

R143

C116

0.033

1000P

R107

C105

330

R108 470K

(0V)

0.7V

Q102 2SC2787LTA

FM IF AMP

C120

16V10

22K

R121

(0V) 12V

C138

TLM

C139

4700P

C119 390P

4.7K

R102

1000P

C115 25V4.7

R120 47K

(5.7V)

2.2V 2.2V 1.7V 2.1V 2.1V 2.1V 1.9V 1.9V

5.2V

AFC

OSC

AM RF IN

AGC

(2.1V)0V(0.3V)

AM OUT

FM

3.2V

DET OUT

0.12V P

PILOT IN

P

R123

C131 100P

MPX IN

CF202

13

2

0.01

68K

C137 4700P

Lch

Rch

PILOT OUT

Q106 UN4111TA

POWER SUPPLY (FM:ON)

(0V)

14.7V

10K

0V (14.8V)

10K

14.8V

C118

C117

0.018

C142 50V1

C141 50V1

R142

1K

R141

1K

R146

R145

100K

C144

C143

14.8V

B

4700P

A

4700P

SD

1.5K

R125

R126

AB

1.5K

ST

0V (4.7V)

R124

X102

C147

FM DET

270

1000P

3.4V (4.1V)

C149

STRQ

Vcc

5.2V (5.7V)

470

R127

0.1

MONO

FM/AM

3.7V

3.9V

(1.1V)

(3.5V)

50V1

C122

C121

50V0.47

50V1

E

C123

CB

DA

DI

CL

DO

Lch OUT

R131

68

CE

BADFCE

1234567

DET

Rch OUT

2.7K

R122

To CONNECTOR CIRCUIT (CN102A) on SCHEMATIC DIAGURAM

R139

3.3K

R140

CN102B

4

Q110

(1.9V) 3V

2SC3311ARSTA

SWITCHING

7.3V1.6V

(1V)

7.3V

4.7K

A B

To CONNECTOR CIRCUIT (CN101A) on SCHEMATIC DIAGURAM 4

AB

SD

NC

+B(2)

STEYE

E

CN101B

1234567

VT

+B(1)

T.GND

461

REG

AM MIX OUT

2.1V 2.1V 0V 0V

5.2V (5.7V)

C126

0.047

3

2

C106

0.01

GND

AM IF IN

0.01

C148

FM IF IN

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

2.1V

C127

6.8K

R119

16V22

Z102

1 2 3

+

C129

6.3V100

SCHEMATICDIAGRAM 3

FL CIRCUIT

B

A

C712

C

R750 10K

:POSITIVE VOLTAGE LINE :NEGATIVE VOLTAGELINE

FL701 (RSL0273 F)

FL DISPLAY

1 3 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 51 52 53 54 57 59

M

R782 100K

12

R783 100K R784 100K R785 100K R786 100K

APXBCDEFGHI JKLMNO WVUTSRQ ACDB

5.9V

22.3V

22.2V

P50/

FLD8

P51/FLD9

P53/FLD11

P52/FLD10

P54/FLD12

P55/FLD13

P56/FLD14

P57/FLD15

P00/FLD16

P01/FLD17

4V 0V

5V

0V

P94/SOUT2

P93/SIN2

P92/SSTB2

4.6V

4.1V

1.4V

24V

IC701 M30218MAA103

FL DRIVE / SYSTEM CONTROL

0V

P91/SBUSY2

P90/SRDY2

CNVSS

P87/XCIN

0V

3.5V

2.2V

T 7.2ms.

T 27ms.

P97/CLKOUT

P96/DA1/SCLK22

P95/SCLK21

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

4.7V

4.5V0V4.2V

7.7V

11.2V

5.9V

P02/FLD18

P03/FLD19

5V

P86/XCOUT

/RESET

4.7V

2.4V

3 4 5 6

ARBCDEFGHI JKLMNOPQ

11.3V

9.3V

15V

24V

18.5V

9.4V

13.2V

22.2V

18.7V

20.4V

4.7V

0V

SS

V

VCC

P07/FLD23

T

7.2ms.

5V

0V

VCC

P85/INT5

P84/INT4

4.7V

3.8V0V4.8V

P11/FLD25

P10/FLD24

P12/FLD26

4V 0V

24V

1.4V P

P

P83/INT3

P82/INT2

P81/INT1

0V

P13/FLD27

P14/FLD28

T 36ms.

P80/INT0

P77/TA4IN/TA2OUT/CLKS1

0V0V0V

0V

P15/FLD29

P16/FLD30

P76/TA3IN/TA1OUT/CLK1

P75/TA2IN/TA0OUT/RXD1

0V

P04/FLD20

P05/FLD21

P06/FLD22

T

27ms.T 27ms.

F=10MHz

VSS

XOUT

XIN

0V

2.2V

4.7V

16.6V

13.1V

9.5V

P17/FLD31

P20/FLD32

P21/FLD33

5V

0V

P74/TA1IN/YA4OUT/TXD1

P73/TA0IN/TA3OUT

P72/TB2IN

0V

11.2V

515253545556575859606162636465666768697071727374757677787980

P23/

FLD35

FLD36

P22/FLD34

P25/FLD37 P26/FLD38 P27/FLD39 P30/FLD40 P31/FLD41 P32/FLD42 P33/FLD43 P34/FLD44 P35/FLD45 P36/FLD46 P37/FLD47 P40/FLD48 P41/FLD49 P42/FLD50 P43/FLD51

P44/TXD0 P45/RXD0 P46/CXL0

CST0 RST0

P71/TB1IN

P70/TB0IN

0V

R723 1K R722 1K

P24/

P47/

0.1

R746 10K

R738 100

LK IJ

R747 10K

C782

50V1

C713

R748 10K

50V10

R749 10K

C706

0.1

R734

100K

4.9V

22.2V

100

R733

R739 1K R740 1K R741 1K

R742 1K

0.1

C711

A AXBCDEFGHI JKL NOPQRSTUVWBCDEF

Q702 2SD1819ATX

FL DRIVE

A F E D C B

C715 0.1

C717 0.01

C718 0.01

C716 0.1

R751

10K

24.6V

4.7V

22.2V

24.6V

4.9V

1.1V

4.9V

4.8V

L701

P67/FLD7

82

P66/FLD6

83

P65/FLD5

84

P64/FLD4

85

P63/FLD3

86

P62/FLD2

87

P61/FLD1

88

P60/FLD0

89

EE

V

0V

90

P107/AN7

0V

91

P106/AN6

0V

92

P105/AN5

0V

93

P104/AN4

0V

94

P103/AN3

95

P102/AN2

96

P101/AN1

0V

97

AV

SS

98

P100/AN0

99

VREF

100

CC

AV

R781 100K

3 4 5 6 7 8 9

10

D711,713,714 MA111TX

20.3V

5081

16.7V

49

22.3V

48

14.7V

47

9.2V

46

20.3V

45

18.5V

44

20.2V

43

14.8V

42

13V

41

9.4V

40

5.6V

39

9.4V

38

15V

37

0V

36

0.3V

35

0V

34

0.6V

33

0V

32

0V

31

50V1

C781

D711

R727 330 R726 330 R725 100 R724 1K

F G

12

D713

D714

E F G H

I J K L M N O P Q R

15K

R721

AB

C792

6.3V100

R710

1K

C710

0.01

6.3V1000

C707

R752 1K

R753 1K

R754 1K

R755 1K

R756 1K

R757 1K

HAGFEDCB

18P

C702

R758 100

R759 100

X702

(32KHz)

C703

R702 10K

20P

R704 0ohm

13

2

4.8V

4.9V

X701

(10MHz)

Q701

D705

R703

MA111TX

100K

4.7V

C705 0.1

0V

820K

R708

R701 1K

C709

16V10

10K

47K

UN5214TX

RESET

0V

D701

C704

50V2.2

D701 MA111TX

SCHEMATICDIAGRAM 4

OPERATION CIRCUIT

C

S601

CAB

(FM/AM)

R601

6.8K

S602 (RDS

DISPLAY MODE)

R602

4.7K

S603

(AUTO/MONO)

R603

3.3K

S604

(TUNE MODE)

R605

R604

1.8K

2.2K

S605

()

TUNE/

TIME ADJUST

S606

()

R606

1.5K

S607

(SET)

R607

1.2K

S608 (CLOCK/

DEMO)

TIMER/

R6081KR609

820

S610

S609

L

( REC)

CN703B

Z601 RCDGP1U26XD

(REMOTE SENSOR)

VGO

2 13

L

( PLAY)

IN/OUT TERMINAL

D

CIRCUIT

C202

C201

R206

1K

R205

1K

100P

R202

1K

R201

1K

R208

R207

100K

C206

C205

R204

R203

100P

100K

C209

1000P

C204

C203

100P

CN105B

7 6 5 4 3 2 1

JK201

Rch

OUT

Lch

EXT/MD

JK201

Rch

0.01

C601

IN

12345

Lch

ACB

R728

R729

R730

1K

10K

4.9V

CN703A

12345

A B

:POSITIVE VOLTAGE LINE :NEGATIVEVOLTAGE LINE :FM SIGNAL LINE :AM SIGNAL LINE

A B C D E F

G

CN701B

1 2 3 4 5 6 7 8

9 10 11 12 13 14

L702

C

L703

B

L704

A

L707

D706

1SS380TE

A B C D E

17

R760

1K

L706

R709

1K

17

D703

1SS380TE

C708

0.01

17

D704

1SS380TE

R706

1K

A B C D E F

G

H

I J K L

CN702B

CONNECTOR

E

CIRCUIT

CN102A

7

Lch IN

Rch IN

DET

+B(2 )

STEYE

+B(1)

T.GND

CL

6

DO

5

DI

4 3

CE

2 1

CN101A 7 6

SD

5

NC

4 3

VT

2 1

C471

0.047

14.8V

A

To TUNER CIRCUIT

1 2 3 4 5 6 7 8

9 10 11 12 13 14

(CN102B) on SCHEMATIC DIAGURAM-2

A

To TUNER CIRCUIT (CN101B) on SCHEMATIC DIAGURAM-2

7.3V

C472

0.047

CN103B

CN104B

7 6 5 4 3 2 1