CD-BA2010 (serv.man8). Part 5 - Voltage table, Troubleshooting tables, IC tables - Sharp Audio Service Manual (repair manual). Page 8

– 50 –

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 16.9344 MHz 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

16.9344 MHz 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

DRF

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), DRF (72pin),
CONT6 (75pin), CONT7 (76pin)