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– 25 –

75

SBSO

O

Sub-code P-W serial data output terminal    Not used (open)

76

EXCK

I

Sub-code P-W serial data reading clock signal input terminal    Not used (fixed at “L”)

77

SUBQ

O

Sub-code Q data signal output to the system controller (IC351)

78

SQCK

I

Sub-code Q data reading clock signal input from the system controller (IC351)

79

MUTE

I

Mute signal input from the system controller (IC351)

80

SENS

O

Internal status (SENSE) signal output to the system controller (IC351)

81

XRST

I

System reset signal input from the reset signal generator (IC206)    “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

82

DIRC

I

1-track jump mode input terminal    Not used (fixed at “H”)

83

SCLK

I

Sense serial data reading clock signal input from the system controller (IC201)

84

DFSW

I

Defect on/off select signal input terminal    Not used (fixed at “L”)

85

ATSK

I

Input terminal for the anti-shock    Not used (fixed at “L”)

86

DATA

I

Serial data input from the system controller (IC351)

87

XLAT

I

Serial data latch pulse signal input from the system controller (IC351)

88

CLOK

I

Serial data transfer clock signal input from the system controller (IC351)

89

COUT

O

Track number count signal output terminal    Not used (open)

90

DVDD

—

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

91

MIRR

O

Mirror detection signal output terminal    Not used (open)

92

DFCT

O

Defect signal output terminal    Not used (open)

93

FOK

O

Focus OK signal output terminal    Not used (open)

94

FSW

O

Selection signal output terminal of the output filter for spindle motor    Not used (open)

95

MON

O

Spindle motor on/off control signal output terminal    Not used (open)

96

MDP

O

Spindle servo control signal output terminal

97

MDS

O

Spindle servo control signal output terminal    Not used (open)

98

LOCK

O

GFS is sampled by 460 Hz    “H” output when GFS is “H”    Not used (open)

99

SSTP

I

Detection input from the sled limit-in detect switch (SW102)
The optical pick-up is inner position when “H”

100

SFDR

O

Sled servo drive PWM signal (+) output to the BA6297AFP (IC102)

– 26 –

1

A3

O

2

A4

O

3

A5

O

4

A6

O

5

A7

O

6

A8

O

7

A9

O

8

A10

O

9

A11

O

10

A12

O

11

WE

O

Write enable signal output to the static RAM (IC352)

12

NC

O

Not used (open)

13

NC

O

Not used (open)

14

LED-PLAY

O

( LED (D871) drive signal output terminal    “H”: LED on

15

LED-PAUSE

O

P LED (D872) drive signal output terminal    “H”: LED on

16

LED-FILTER

O

FILTER LED (D873) drive signal output terminal    “H”: LED on

17

SPDL-MUTE

O

Mute signal output to the spindle motor driver (IC102, 104)

18

SHIFT-ON/OFF

O

Reset signal output to the CXD2562Q-CS (IC302)    “L”: reset

19

VOL UP

O

Volume up control signal output to the volume control motor driver (IC354)

20

VOL DOWN

O

Volume down control signal output to the volume control motor driver (IC354)

21

BLANK

O

Blank signal output to the fluorescent indicator tube driver (IC801 to IC803)

22

FL D0

O

Serial data output to the fluorescent indicator tube driver (IC803)

23

FL D1

O

Serial data output to the fluorescent indicator tube driver (IC802)

24

FL D2

O

Serial data output to the fluorescent indicator tube driver (IC801)

25

FL CLK

O

Serial data transfer clock signal output to the fluorescent indicator tube driver (IC801 to IC803)

26

FL WR

O

Read/write select signal output to the fluorescent indicator tube driver (IC801 to IC803)

27

SENSER SW

O

On/off control signal output to the stabilizer detect sensor (IC361)    “H”: on

28

SENSER

I

Detect signal input from the stabilizer detect sensor (IC361)    “H”: on

29

LIMIT OUT

I

Detection input from the sled limit-out detect switch
The optical pick-up is outer position when “L” Not used (fixed at “L”)

30

RESET

I

System reset signal input from the reset signal generator (IC206)    “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

31

XTALI

I

Main system clock input terminal (4 MHz)

32

XTALO

O

Main system clock output terminal (4 MHz)

33

VSS

—

Ground terminal

34

TX

O

Sub system clock output terminal    Not used (open)

35

TEX

I

Sub system clock input terminal    Not used (fixed at “L”)

36

AVSS

—

Ground terminal (for A/D converter)

37

AVREF

I

Reference voltage input terminal (+5V)

38

ADJ/AFADJ

I

Setting terminal for the test mode    “L” active

39

K0

I

Key input terminal (A/D input)    (fixed at “H”)

40

K1

I

Key input terminal (A/D input)
P MODE, TIME keys (S819S820) input

41

K2

I

Key input terminal (A/D input)
ERASE, CHECK, CLEAR, FILTER, 

0, ) , keys (S801 to S806) input

Address signal output to the static RAM (IC352)

•

– 27 –

42

K3

I

Key input terminal (A/D input) EDIT/TIME FADE, REPEAT, FILE,
§ OPEN/CLOSE, (,  P, p keys (S811 to S817) input

43

K4

I

Rotary encoder input terminal (A/D input)    AMS 

± key (RV801) input

44

K5

I

Rotary encoder input terminal (A/D input)    AMS 

≠ key (RV801) input

45

IN/OUT SW

I

Detection input from the loading in/out detect switch (S281, S282)  (A/D input)

46

SCLK

O

Sense serial data reading clock signal output to the CXD2545Q (IC101)

47

PRGL

O

Serial data latch pulse signal output to the CXD8595Q (IC301)

48

CLK

O

Serial data transfer clock signal output to the CXD2545Q (IC101) and CXD8595Q (IC301)

49

SENSE

I

Internal status (SENSE) signal input from the CXD2545Q (IC101)

50

DATA

O

Serial data output to the CXD2545Q (IC101) and CXD8595Q (IC301)

51

SQCK

O

Sub-code Q data reading clock signal output to the CXD2545Q (IC101)

52

SUBQ

I

Sub-code Q data signal input from the CXD2545Q (IC101)

53

TEST

O

Output terminal for the test    Not used (open)

54

SEL1

I

Destination setting terminal (fixed at “L”)

55

SEL0

I

Destination setting terminal (fixed at “L”)

56

RMIN

I

Remote control signal input from the remote control receiver (IC804)

57

TIMER

I

Timer control input terminal    Not used (fixed at “H”)

58

TEST

O

Output terminal for the test    Not used (open)

59

TEST

O

Output terminal for the test    Not used (open)

60

SCOR

I

Sub-code sync (S0+S1) detection signal input from the CXD2545Q (IC101)

61

AMUTE

O

Muting control signal output to the analog mute driver and mute relay driver

62

LDON

O

Laser diode on/off selection signal output to the RF amplifier in optical pick-up

63

XLT

O

Serial data latch pulse signal output to the CXD2545Q (IC101)

64

LOAD OUT

O

Loading motor (M2) drive signal output to the NJM4558 (IC182)    *1

65

LOAD IN

O

Loading motor (M2) drive signal output to the NJM4558 (IC182)    *1

66

DOUT

O

Digital out on/off control signal output to the CXD2545Q (IC101) Not used (Open)

67

DMUTE

O

Muting control signal output to the CXD2545Q (IC101) and CXD8595Q (IC301)

68

D0

I/O

69

D1

I/O

70

D2

I/O

71

D3

I/O

72

VDD

—

Power supply terminal (+5V)

73

NC

I

Not used (fixed at “H”)

74

D4

I/O

75

D5

I/O

76

D6

I/O

77

D7

I/O

78

A0

O

79

A1

O

Address signal output to the static RAM (IC352)

80

A2

O

Two-way data bus with the static RAM (IC352)

Two-way data bus with the static RAM (IC352)

*1   Loading motor (M2) control

LOAD OUT (pin ^¢)

“L”

“H”

“L”

“H”

LOAD IN (pin ^∞)

“L”

“L”

“H”

“H”

OFF

OUT

I N

BRAKE

Operation

Terminal

– 28 –

SPDL-MUTE (pin  !¶)
From the viewpoint of performance of the set, the disc must
not move nor sway when the disc table opens.

These

problems however occur in the actual case due to the offset
voltage generated and the voltage generated because of the
positional relation between the BSL coil and Hall element.
The spindle motor driver (IC102, IC104) is therefore muted
while the tray is open.  Pin !¶ provides the timing for this.

H

L

OPEN

Reverses after a
certain period of time.

SP MUTE

(MUTE ON)

CLOSE

SPINDLE

KICK

Reverses after a
certain period of time.

PLAY

Time while the
disc can be seen
(Estimate).

The spindle
motor driver is
muted during
this time.

BLANK (pin  @¡)
This port is required because the display tube in this set static
lights

up and a dedicated screwdriver is required. It is

basically a RESET pin.

But as problems will occur if used

also as RESET, timings are specially provided using the
micro-processor.

SENSER (pin  @•)
The results of the detection of IC361 IS471F is output to this
pin. It becomes “ L” when there is no stabilizer (when light
reaches). The next process of imposing the next focus is not
performed.  (Effective only when pin @¶ is “H”.)
Therefore, it must be noted that if PLAY is performed when th
servo board at the top of the CDM is not assembled properly,
the detection circuit operates and this pin does not operate.
It is does not operate, refer to 1. SERVICING NOTES ” Prep-
arations for Adjustment and Measurement” on page 3.

GLout pin
output waveform

@¶)

As IC361 IS471F operate in pulse as shown in the figure, the
sound quality may be affected if operated constantly.

As the

purpose of IC361 is to detect if the presence of the stabilizer,
it should be operated only when the tray is drawn in. IC361
operates as it is “H” only at this time.  Normally it is “L”.

Ee

0

Eep

Eed

Time

Eep is the luminance of the signal light tuned with the low
level timing of the GLout pin output.
Eed is the luminance of the D.C. light.

The light source is

the infrated-emitting diode (

λ

p=940 nm).

*