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– 39 –

•

1

DEFI

I

Defect detection signal input from the RF amplifier (IC101)

2

TAI

I

PLL test input terminal    Not used (fixed at “L”)

3

PDO

O

PLL phase comparison output for external VCO control

4

VVSS

—

Ground terminal (internal VCO system)

5

ISET

I

Connected to a current adjusting resistor for the PDO output

6

VVDD

—

Power supply terminal (+5V) (internal VCO system)

7

FR

I

Adjusts the VCO frequency range

8

VSS

—

Ground terminal (digital system)

9

EFMO

O

Slice level control to EFM signal output

10

EFMIN

I

Playback EFM RF signal input from the RF amplifier (IC101)

11

TEST2

I

Test input terminal (fixed at “L” in this set)

12

CLV+

O

13

CLV–

O

14

V/P

O

Sled servo on/off control signal output to the RF amplifier (IC101)    Rough servo/phase control
automatic switching monitor output     “H”: rough servo, “L”: phase servo

15

HFL

I

Tracking detection signal input from the RF amplifier (IC101) (Schmitt input)    HFL (High
Frequency Level) is used to determine whether the main beam is positioned on a pit or mirror

16

TES

I

Tracking error signal input from the RF amplifier (IC101) (schmitt input)

17

TOFF

O

Tracking off control signal output to the RF amplifier (IC101)
Tracking becomes off when TOFF is “H”

18

TGL

O

Tracking gain control signal output to the RF amplifier (IC101)  (Raises gain when “L”)

19

JP+

O

20

JP–

O

21

PCK

O

EFM data playback clock monitor output terminal (4.3218 MHz when phase is locked)

22

FSEQ

O

Sync signal detection output terminal (“H” when a sync signal detected from the EFM signal and
that generated internally coincide)

23

VDD

—

Power supply terminal (+5V) (digital system)

24

CONT1

I

Guard frame sync input terminal

25

CONT2

I

Sled servo on/off control signal input terminal

26

CONT3

O

Sled servo drive control signal output terminal

27

CONT4

I

Sled limit-in detect switch (S101) input terminal    The optical pick-up is inner position when “L”

28

CONT5

O

Not used (open)

29

EMPH

O

De-emphasis control signal output terminal
The de-emphasis disc is being played back when “H”    Not used (open)

30

C2F

O

C2PO (error condition monitor) signal output terminal

31

DOUT

O

Digital signal output terminal (EIAJ format)

32

TEST3

I

Test input terminal (fixed at “L” in this set)

33

TEST4

I

Test input terminal (fixed at “L” in this set)

34

NC

—

Not used (open)

35

MUTEL

O

Line muting on/off control signal output terminal (for L-ch side)    “H”: muting on

36

LVDD

—

Power supply terminal (+5V) (L-ch D/A converter system)

37

LCHO

O

Analog audio signal output from the internal D/A converter block (for L-ch side)

38

LVSS

—

Ground terminal (L-ch D/A converter system)

39

RVSS

—

Ground terminal (R-ch D/A converter system)

40

RCHO

O

Analog audio signal output from the internal D/A converter block (for R-ch side)

41

RVDD

—

Power supply terminal (+5V) (R-ch D/A converter system)

Disc motor control signal output to the RF amplifier (IC101)
(3-value output available depending on the command)

Track jump control signal output to the RF amplifier (IC101)
(3-value output available depending on the command)

– 40 –

42

MUTER

O

Line muting on/off control signal output terminal (for R-ch side)    “H”: muting on

43

XVDD

—

Power supply terminal (+5V) (crystal oscillator system)

44

XOUT

O

System clock output terminal (16.9344 MHz)

45

XIN

I

System clock input terminal (16.9344 MHz)

46

XVSS

—

Ground terminal (crystal oscillator system)

47

SBSY

O

C1, C2, single correction, and double correction monitor output terminal    Not used (open)

48

EFLG

O

Subcode P to W output terminal

49

PW

O

Subcode frame sync signal output terminal    Not used (open)

50

SFSY

O

Write frame clock signal output terminal    Not used (open)

51

SBCK

I

Subcode reading clock signal input terminal (schmitt input)    Not used (fixed at “L”)

52

FSX

O

7.35 kHz sync signal output divided from the crystal oscillation

53

WRQ

O

Subcode Q synchronizing signal output to the system controller (IC801)

54

RWC

I

Command chip enable signal input from the system controller (IC801) (schmitt input)

55

SQOUT

O

Subcode Q output to the system controller (IC801)

56

COIN

I

Command serial data input from the system controller (IC801)

57

CQCK

I

Command serial clock signal input from the system controller (IC801) (schmitt input)
Fetching clock input or subcode extracting clock input from SQOUT (pin %∞)

58

RES

I

System reset signal input from the reset signal generator (IC701)    “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

59

TEST11

O

Test output terminal    Not used (open)

60

16M

O

Master clock signal (16.9344 MHz) output terminal    Not used (open)

61

4.2M

O

Reference clock signal (4.2336 MHz) output to the RF amplifier (IC102)

62

TEST5

I

Test input terminal (fixed at “L” in this set)

63

CS

I

Chip select signal input terminal    Not used (fixed at “L”)

64

TEST1

I

Test input terminal (fixed at “L” in this set)

– 41 –

•

1

TSENS1

I

Disc table flag detect sensor (IC51) input terminal

2

RMIN

I

Remote control signal input from the remote control receiver (IC802)

3

DOOR SW

I

Front cover open/close detect switch (S821) input terminal    “L”: close, “H”: open

4, 5

NC

O

Not used (open)

6

BUSIN

I

Audio bus signal input for the audio bus interface

7

RWC

O

Command chip enable signal output to the RF amplifier (IC101) and DSP (IC102)

8

CQCK

O

Command serial clock signal output to the RF amplifier (IC101) and DSP (IC102)

9

SQOUT

I

Subcode Q data input from the DSP (IC102)

10

COIN

O

Command serial data output to the RF amplifier (IC101) and DSP (IC102)

11

TGL

I

Tracking gain control signal input from the DSP (IC102)                                                                   
Gain becomes low when tracking gain is “H”

12

DRF

I

RF level detection signal input from the RF amplifier (IC101)

13

NC

O

Not used (open)

14

SL+

O

Sled feeding signal (external direction) output to the RF amplifier (IC101)

15

SL–

O

Sled feeding signal (internal direction) output to the RF amplifier (IC101)

16

LOAD OUT

O

Loading motor (M61) drive signal output to the BA6780 (IC601)    “L” active

17

LOAD IN

O

Loading motor (M61) drive signal output to the BA6780 (IC601)    “L” active

18

TABLE L

O

Table motor (M62) drive signal output to the BA6780 (IC601)    “L” active

19

TABLE R

O

Table motor (M62) drive signal output to the BA6780 (IC601)    “L” active

20

DOWN SW

I

Inputs the loading out switch (S52) detection signal

21

UP SW

I

Inputs the loading in switch (S51) detection signal

22

DSENS

I

Inputs the disc sensor (Q51) detection signal (A/D input)

23

KEY0

I

Key input terminal (A/D input) (S801, 802 and RE801)                                                                     
CLEAR, CHECK, DISC PUSH ENTER keys input

24

KEY1

I

Key input terminal (A/D input) (S803 to 810)                                                                                     
±, ≠, p, P, ·, PLUS ONE, REPEAT, PLAY MODE keys input

25

KEY2

I

Key input terminal (A/D input) (S811 to 816)                                                                                     
BLOCK FILE 5/4/3/2/1,  

I

/

u keys input

26

TEST MODE

I

Setting terminal for the test mode (ADJ mode) (A/D input)                                                                
“L”: test mode, Normally: fixed at “H”

27

CD1/2/3

I

Inputs the CD COMMAND MODE switch (S831) detection signal (A/D input)

28

JOG1

I

Jog dial pulse input of the rotary encoder (RE801) (A/D input)

29

JOG2

I

Jog dial pulse input of the rotary encoder (RE801) (A/D input)

30

RESET

I

System reset signal input from the reset signal generator (IC703)    “L”: reset                                   
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

31

10MHz

—

Connected to oscillator (10 MHz)

32

10MHz

—

Connected to oscillator (10 MHz)

33

GND

—

Ground terminal

34

PLAY LED

O

LED drive signal (D801 

·) output terminal    “H”: LED on

35

PAUSE LED

O

LED drive signal (D802 

P) output terminal    “H”: LED on

36

P1 LED

O

LED drive signal (D803 PLUS ONE) output terminal    “H”: LED on

37

POWER LED

O

LED drive signal (D804 STANDBY) output terminal    “H”: LED on

38

ICSW

O

Power on/off control signal output to the LA5602 (IC701)    “H”: power on, “L”: standby

39, 40

NC

O

Not used (open)

41 to 62

P1 toP22

O

Segment drive signal output to the fluorescent indicator tube (FL801)

63 to 65

NC

O

Not used (open)

– 42 –

66 to 70

G1 to G5

O

Grid drive signal output to the fluorescent indicator tube (FL801)

71

VFDP

I

Reference voltage input for the fluorescent indicator tube (FL801)

72

VDD

—

Power supply terminal (+5V)

73

(VDD)

—

Power supply terminal (+5V)

74, 75

NC

O

Not used (open)

76

BUSOUT

O

Audio bus signal output for the audio bus interface

77

TEST PULSE

O

Table position detect pulse output terminal (for disc sensor alignment)

78

WRQ

I

Subcode Q synchronizing signal input from the DSP (IC102)

79

TSENS3

I

Disc table home position detect sensor (IC53) input terminal

80

TSENS2

I

Disc table flag detect sensor (IC52) input terminal