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– 46 –

44

LVDD

–

–

L channel

Power terminal for L channel.

45

LCHO

Output

1/2VDD

D/A converter

L channel output terminal.

46

LVSS

–

–

Ground terminal for L channel. Surely connected to 0V.

47

RVSS

–

–

R channel

Ground terminal for R channel. Surely connected to 0V.

48

RCHO

OUTPUT

1/2VDD

D/A converter

R channel output terminal.

49

RVDD

–

–

Power terminal for R channel.

50

XVDD

–

–

For quartz

Power terminal for quartz oscillation.

51

XIN

Input

Oscillation

oscillation

Ground terminal of 16.9344MHz quartz oscillation.

52

XOUT

Output

Oscillation

53

XVSS

–

–

Ground terminal for quartz oscillation. Surely connected to 0V.

54

ASLRCK

Input

–

For anti

L/R clock input terminal. (When not used,connect to 0V)

55

ASDACK

Input

–

shock mode

Bit clock input terminal. (When not used,connect to 0V)

56

ASDFIN

Input

–

L/R channel data input terminal. (When not used,connect to 0V)

57*

LRSY

Output

L

For digital

L/R clock output terminal.

58*

DATACK

Output

L

data output

Bit clock output terminal.

59*

DATA

Output

L

L/R channel data output terminal.

60*

16M

Output

Clock output

16.9344MHz output terminal.

61*

SFSY

Output

L

Output terminal of synchronous signal of subcode frame.
It drops when subcode stand by.

62*

SBSY

Output

L

Output terminal of synchronous signal of subcode block.

63*

PW

Output

L

Output terminal of subcodes P,A,R,S,T,U and W.

64

SBCK

Input

–

Clock input terminal to read subcode. (When not used,connect to 0V)

65

CE

Input

–

For

Chip enable signal input terminal.

66

CL

Input

–

microcomputer

Data transmission clock input terminal.

67

DI

Input

–

interface

Data input terminal.

68

DO

Output

L

Data output terminal.

69

INT

Output

H

Interruption signal output terminal.

70

WRQ

Output

H

Interruption signal output terminal.

71

RES

Input

–

Reset input terminal of LC78640. When turning on power, set it at "L".

72

DEF

Output

L

Focus ON detection terminal.

73

VDD5V

–

–

Power terminal for microcomputer interface.

74

VSS

–

–

Ground terminal of digital system. Surely connected to 0V.

75

CONT6

In/Output

Input mode

General purpose input/output terminal 6.

Controlled with serial data command
from microcomputer. When not used,

76

CONT7

In/Output

Input mode

General purpose input/output terminal 7.

set it as the input terminal and
open it by connecting to 0V, or set it
as the output terminal and open it.

77*

V/ P

Output

H

Monitor output terminal for automatic switch of rough servo/phase control.
"H" for rough servo, and "L" for phase servo.

78*

FSEQ

Output

L

Output terminal synchronous signal detection. "H" is output when synchronous signal
detected by EFM signal matches synchronous signal internally generated.

79*

DEFECT

In/Output

Input mode

Defect terminal. After resetting, it is configured as an input terminal. It can be controlled
 from the outside. It also becomes a defect monitor terminal under command control

80*

EFMO

Output

Unfixed

EFM signal output terminal.

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

Be sure to supply the same potential to each power terminal. (VVDD,ADAVDD,VDD,LVDD,RVDD,XVDD)
Terminal witch is controlled by the power terminal (VDD5V) for a microcomputer interface :
CE (65pin), CL (66pin), DI (67pin), DO (68pin), INT (69pin), WRQ (70pin), RES (71pin), DEF (72pin),
CONT6 (75pin), CONT7 (76pin)

– 47 –

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

1

VDD

VDD

—

(+) Power supply

2

P37

NO USE

—

GND

3*

P36

S-BUSY

Output

Commijntcate to MPEG 

µ

–COM

4

P35

T–BIAS

Output

Tape record BIAS

5

P34

T–T1/T2

Output

Tape T1/T2 change

6

P33

REC/PLAY

Output

Tape REC/PLAY change

7

P32

RES OUT

Output

CD DSP reset & MPEG 

µ

-COM reset

8

P31

DRF

Input

CD RF level detection

9

P30

WRQ

Input

CD DSP write requset

10

RESET

RESET

Input

Reset

11

X2

X2

Output

Main clock

12

X1

X1

Input

Main clock

13

Vpp/IC

VPP/IC

—

GND

14*

XT2

XT2

—

Open

15

P04

CD INT

Input

CD DSP interrupt

16

VDD

VDD

—

(+) Power supply

17

P27

CD CLK

Output

CD DSP Clock/MPEG 

µ

-COM clock

18

P26

CD DI

Outout

CD DSP Command/MPEG 

µ

-COM COMMA

19

P25

CD DO

Input

CD DSP code Q Out/MPEG 

µ

-COM data input

20

P24

CD CE

Output

CD DSP CE output

21

P23

CE

Output

CE output

22

P22

CLK

Output

CLOCK output

23

P21

DI

Output

DATA output

24

P20

DO

Output

DATA input

25

AVss

AVSS

—

Analog ground

26

P17/ANI7

M-BUSY/TUN SM

Input

Tuner signal meter input
Communjcate to MPEG 

µ

-COM M_BUSY

27

ANI6

NO USE

Input

GND

28

ANI5

SPEANA 2

Input

SPEANA data input 16 kHz

29

ANI4

SPEANA 1

Input

SPEANA data input 1 kHz

30

ANI3

SPEANA 0

Input

SPEANA data input 63 kHz

31-33

ANI2-ANI0

KEY2-KEY0

Input

Key input

34

AVDD

AVDD

—

Analog VDD

35

AVREF

AVref

—

Analog REF voltage

36

INTP3

SYS STOP

Input

System stop input

37

P02

SP_RLY

Output

Speaker output relay control

38

INTP1

NO USE

Input

GND

39

INTP0

REMOCON

Input

Remocon input

40

Vss

VSS

—

Ground voltage

41

P74

SMUTE

Output

System mute control

42

P73

T_SOL_B

Output

Tape2 solenoid control

43

P72

T_SOL_A

Output

Tape1 solenoid control

44

P71

T_MOTOR

Output

Tape motor control

45

P70

TIMER LED

Output

Timer LED control

46

VDD

VDD

—

(+) Power supply

47

P127

AC RLY_CONT

Output

AC relay control

48*

P126

NC

—

Open

49

P125

SPK_DET

Input

Speaker output detection

50

P124

T1 RUN

Input

Tape1 ran pluse input

51

P123

T2 RUN

Input

Tape2 ran pluse input

52

P122

CD CLAMP SW

Intput

CD changer clamp switch

53

P121

PLAY SW_A

Input

Play switch for T1

– 48 –

54

P120

PLAY SW_B

Input

Play switch for T2

55

P119

FPA

Input

Tape2 A–side full proof

56

P118

FPB

Input

Tape2 B_side full proof

57

P117

MIC IN

Input

Mic switch

58

P116

KARAOKE LATCH

Output

KARAOKE latch (When not used, connect to 0V)

59

P115

DISTOUT/SW OUT

Output

Distination output

60*

FIP39

SPN

Input

Tuner span change

61*,62*

FIP38-FIP37

NC

Input

Open

63-66

FIP36-FIP33

P22-P19

Output

FL diaplay daiver

67-70

FIP32-FIP29

P18-P15

Output

FL diaplay daiver

P103-P100

DIST3-DIST0

Input

Distination intput

71-78

FIP28-FIP21

P14-P7

Output

FL display driver

79

VLOAD

VLOAD

––

FL driver (–) power supply.–30V

80-85

FIP20-FIP15

P6-P1

Output

FL display segment

86*-89*

FIP14-FIP11

NC

Input

Open

90-100

FIP30-FIP0

G11-G1

Output

FL display segment driver

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

1

IN2-

CH2 inverted input.

2

IN1A-

CH1 inverted input.

3*

IN1B-

CH1 output offset control.

4

OUT1-

CH1 inverted output.

5

OUT1+

CH1 non-inverted output.

6

OUT2-

CH2 inverted output.

7

OUT2+

CH2 non-inverted output.

8-14

GND

GND

15

OUT3+

CH3 non-inverted output.

16

OUT3-

CH3 inverted output.

17

IN3-

CH3 inverted input.

18

VCC1

Power supply 1 (CH1, CH2, CH3)

19

STANDBY

STANDBY signal input.

20

VRFE

CH1-CH4 Reference voltage input.

21

MUTE

Mute signal input (CH6).

22

IN5-

CH5 inverted input.

23

IN5+

CH5 non-inverted input.

24

VCC2

Power supply 2 (CH4).

25

IN4-

CH4 inverted input.

26

OUT4-

CH4 inverted output.

27

OUT4+

CH4 non-inverted output.

28

VCC3

Power supply 3 (CH5).

29-35

GND

GND

36*

OUT5+

CH5 non-inverted output.

37*

OUT5-

CH5 inverted output.

38

OUT6+

CH6 non-inverted output.

39

OUT6-

CH6 inverted output.

40

VCC4

Power supply 4 (CH6).

41

IN6-

CH6 inverted input.

42

IN6+

CH6 non-inverted input.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

27

26

25

24

23

22

IN2–

IN1A–

IN1B–

OUT1–

OUT1+

OUT2–

OUT2+

OUT3+

OUT3–

IN3–

VCC1

STANDBY

VREF

MUTE

GND

GND

VCC3

OUT4+

OUT4–

IN4–

VCC2

IN5+

IN5–

IN6+

IN6–

VCC4

OUT6–

OUT6+

OUT5–

OUT5+

M63001FP

In this unit, the terminal with asterisk mark (*) is (open)
terminal which is not connected to the outside.

– 49 –

19

20

21

22

23

24

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

18

17

LVref

RVref

CONTROL

CIRCUIT

CONTROL

CIRCUIT

CONTROL

CIRCUIT

LOUT

LBASS

LIN

LSELO

L4

L3

L2

L1

R1

R2

R3

R4

RSELO

RIN

RTRE

LTRE

RBASS

ROUT

VREF

VDD

CLK

DI

CE

VSS

CCB

INTERFACE

AUX

DECK

TUN

CD

24 23 22 21 20 19 18 17 16 15 14 13

1

2

3

4

5

6

7

8

9

10 11 12

LC75341

DI

CE

VSS

LOUT

LBASS

LTRE

LIN

LSELO

L4

L3

L2

L1

CLK

VDD

VREF

ROUT

RBASS

RTRB

RIN

RSELO

R4

R3

R2

R1