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– 59 –

•

1 to 5

TIN3 to TIN7

I/O

Input of the 4

×

8 matrix test keys (“L” is always output, except in test mode)     Not used (open)

6

LOAD

O

Loading motor control signal output to the motor driver (IC305)    *1

7

EJECT

O

Loading motor control signal output to the motor driver (IC305)    *1

8, 9

NCO

O

Not used (open)

10

MDMON

O

Power supply on/off control signal output of the MD mechanism deck section main power supply
and loading motor drive (IC305) power supply    “H”: power on

11

E-SW

I

Inputs the disc loading completion detect switch (S902) detection signal
“L”: When completed of the disc loading operation

12

AG-OK

O

Output of aging status in test mode    “H”: aging completed, “L”: under aging    Not used (open)

13

ADJ-OK

O

Output of status when aging completed in test mode    “H”: aging OK, “L”: aging NG
Not used (open)

14 to 17

NCO

O

Not used (open)

18

DFCTSEL

I

Select whether defect function is used for the CXD2652AR (IC301)
“H”: not used this function, “L”: used this function (fixed at “H” in this set)

19

DPLLSEL

I

Select whether digital pll function is used for the CXD2652AR (IC301)
“H”: not used this function, “L”: used this function (fixed at “H” in this set)

20

EMPHSEL

I

Select whether emphasis signal output from pin or unilink data
“H”: output from pin only, “L”: outputs from both pin and unilink data    Not used (open)

21

LOCK

O

Mini-disc lock detection signal output to the master controller (IC700)    “H”: lock

22

NCO

O

Not used (open)

23

2M/4M

I

Select whether D-RAM capacitance 2M bit or 4M bit    “H”: 2M bit (internal D-RAM of
CXD2652AR), “L”: 4M bit (external D-RAM) (fixed at “L” in this set)

24, 25

NCO

O

Not used (open)

26

MNT0

I

Focus OK signal input from the CXD2652AR (IC301)
“H” is input when focus is on (“L”: NG)

27

MNT1

I

Track jump detection signal input from the CXD2652AR (IC301)

28

MNT2

I

Monitor 2 signal input from the CXD2652AR (IC301)

29

MNT3

I

Monitor 3 signal input from the CXD2652AR (IC301)

30

RESET

I

System reset signal input from the master controller (IC700), reset signal generator (IC801) and
reset switch (S900)    “L”: reset    For several hundreds msec. after the power supply rises, “L” is
input, then it changes to “H”

31

EXTAL

O

Main system clock output terminal (10 MHz)

32

XTAL

I

Main system clock input terminal (10 MHz)

33

VSS

—

Ground terminal

34

TX

O

Sub system clock output terminal (32.768 kHz)    Not used (open)

35

TEX

I

Sub system clock input terminal (32.768 kHz)    Not used (fixed at “L”)

36

AVSS

—

Ground terminal (for A/D converter)

37

AVREF

I

Reference voltage input terminal (+5V) (for A/D converter)

38

INIT

I

Initial reset signal input terminal (A/D input) (fixed at “H”)

39

TEMP

I

Temperature sensor (TH501) input terminal (A/D input)

40

ACNT

I

Select the number of load/eject aging times (A/D input)
0H – 54H (30 times), 55H – OA9H (20 times), OAAH – OFFH (10 times)

41

DO-SEL

I

Select the digital output bits (A/D input)

42

EE-CS

O

Chip select signal output to the external EEPROM device    Not used (open)

43

EE-CKO

O

Serial data transfer clock signal output to the external EEPROM device    Not used (open)

44

EE-SIO

I/O

Two way data bus with the external EEPROM device    Not used (open)

45

MD-SO

O

Writing serial data signal output to the CXD2652AR (IC301) and CXA2523R (IC302)

46

LINKOFF

O

Unilink on/off control signal output for the SONY bus    “H”: link off, “L”: link on

– 60 –

47

UNIREQ

O

Data request signal output terminal (for SONY bus)    “H”: request on    Not used (open)

48

UNCKI

I

Serial data transfer clock signal input from the master controller (IC700) (for SONY bus)

49

UNISI

I

Serial data input from the SONY bus interface (IC600)

50

UNISO

O

Serial data output to the SONY bus interface (IC600)

51

MD-CKO

O

Serial data transfer clock signal output to the CXD2652AR (IC301) and CXA2523R (IC302)

52

MD-SI

I

Reading serial data signal input from the CXD2652AR (IC301)

53

NCO

O

Not used (open)

54

SENS

I

Internal status (SENSE) input from the CXD2652AR (IC301)

55

CC-XINT

I

Interrupt status input from the CXD2652AR (IC301)

56

LIMIT-IN

I

Detection input from the sled limit-in detect switch (S903)
The optical pick-up is inner position when “L”

57

EJT-KEY

I

Eject request signal input terminal    “L”: eject on    Not used (fixed at “H”)

58

ERROR-PWM

O

PWM error monitor output terminal (C1and ATER is output when test mode)    Not used (open)

59

MD-RST

O

Reset signal output to the CXD2652AR (IC301) and BH6511FS (IC303)    “L”: reset

60

BU-IN

I

Battery detect signal input from the SONY bus interface (IC600) and battery check circuit
“H”: battery on

61

BUS-ON

I

SONY bus on/off control signal input from the master controller (IC700)    “L”: bus on

62

SQSY

I

Subcode Q sync (SCOR) input from the CXD2652AR (IC301)
“L” is input every 13.3 msec    Almost all, “H” is input

63

C-SW

I

Inputs the disc loading start or disc eject completion detect switch (S901) detection signal
“L”: When start or eject completed of the disc loading operation

64

MD-LAT

O

Serial data latch pulse signal output to the CXD2652AR (IC301) and CXA2523R (IC302)

65

MD-ON

O

Power supply on/off control signal output of the MD mechanism deck section main power supply
“H”: power on

66

DEEMP

O

Emphasis on/off control signal output terminal    “H”: emphasis on    Not used

67

A-MUTE

O

Audio muting on/off control signal output terminal    Not used

68

NCO

O

Not used (open)

69

TSTCKO

O

Output of clock signal for the test mode display    Not used (open)

70

TSTSO

O

Output of data for the test mode display    Not used (open)

71

TSTMOD

I

Setting terminal for the test mode    “L”: test mode, “H”: normal mode

72

VCC

—

Power supply terminal (+5V)

73

NC

—

Not used (fixed at “H”)

74 to 77

TOUT0 to TOUT3

O

Output of the 4

×

8 matrix test keys     Not used (open)

78 to 80

TIN0 to TIN2

I/O

Input of the 4

×

8 matrix test keys (“L” is always output, except in test mode)     Not used (open)

*1  Loading motor (M903) control

LOAD (pin 6)

“H”

“L”

“H”

“L”

EJECT (pin 7)

“L”

“H”

“H”

“L”

Terminal

Operation

IN

OUT

BRAKE

STOP

– 61 –

•

1 to 7

NC

O

Not used (open)

8

VCC

—

Power supply terminal (+5V)

9

PLL SI

I

PLL serial data input from the FM/AM PLL (IC100)

10

PLL SO

O

PLL serial data output to the FM/AM PLL (IC100)

11

PLL CKO

O

PLL serial data transfer clock signal output to the FM/AM PLL (IC100)

12

NOSE SW

I

Detects the removal of the attaching and removing type front panel block    “L”: attaching

13

LCD SO

O

Serial data output to the liquid crystal display driver (IC801)

14

LCD CKO

O

Serial data transfer clock signal output to the liquid crystal display driver (IC801)

15

BEEP

O

Beep sound drive signal output terminal

16

DBMOD2

O

D-BASS mode control signal output to the SM5852ES (IC201)

17 to 19

NC

O

Not used (open)

20

UNI SI

I

Serial data input from the SONY bus interface (IC600)

21

UNI SO

O

Serial data output to the SONY bus interface (IC600)

22

UNI CKO

O

Serial data transfer clock signal output to the MD mechanism controller (IC501) and SONY bus
interface (IC600)

23 to 25

NC

O

Not used (open)

26

VOL SO

O

Serial data output to the electrical volume (IC300)

27

VOL CKO

O

Serial data transfer clock signal output to the electrical volume (IC300)

28

DSTSEL0

I

Destination setting terminal
(US, Canadian models: fixed at “H”, E model and MDX-C7900R: fixed at “L”)

29

SYSRET

O

System reset signal output to the MD mechanism controller (IC501) and SONY bus interface
(IC600)    “L”: reset

30

DSTSEL1

I

Destination setting terminal
(US, Canadian models and MDX-C7900R: fixed at “L”, E model: fixed at “H”)

31

DMOD1

O

D-BASS mode control signal output to the SM5852ES (IC201)

32

TESTIN

I

Setting terminal for the test mode    “L”: test mode (normally fixed at “H”)

33

VSS

—

Ground terminal

34

C

—

Connected to capacitor (for coupling)

35

NC

O

Not used (open)

36

BUS ON

O

Bus on/off control signal output to the MD mechanism controller (IC501) and SONY bus
interface (IC600)    “L”: bus on

37

AD ON

O

Power supply on/off control signal output for the A/D converter    “L”: power on

38

DVCC

—

Power supply terminal (+5V) (for D/A converter)

39

DVSS

—

Ground terminal (for D/A converter)

40

LCDANG

O

Output signal for the LCD view angle adjustment    “H”: When front panel is full open

41

VOL CE

O

Chip enable signal output to the electrical volume (IC300)

42

AVCC

—

Power supply terminal (+5V) (for A/D converter)

43

AVRH

I

Reference voltage (+5V) input terminal (for A/D converter)

44

AVRL

I

Reference voltage (0V) input terminal (for A/D converter)

45

AVSS

—

Ground terminal (for A/D converter)

46

KEY IN0

I

Key input terminal (A/D input)             OFF, SOURCE, SEEK/AMS > M + . m – ,
SOUND, SHIFT, 1, 2, 3, 4 keys input (LSW801 to LSW804 and LSW806 to LSW811)

– 62 –

47

KEY IN1

I

48

KEY IN2

I

Key input terminal (A/D input)    Not used (fixed at “L”)

49

RC IN0

I

Rotary remote commander shift key A/D input terminal

50

D-BASS IN

I

D-BASS switch (LSW805) input terminal (A/D input)

51

NC

I

Not used (fixed at “L”)

52

MPDH (MTP)

I

Multi path input from the RDS decoder (IC102)    Used for the MDX-C7900R only

53

S METER (VSM)

I

FM and AM (MW/LW) signal meter voltage detection input from the FM/AM tuner unit (TU1)

54

VCC

—

Power supply terminal (+5V)

55

AMP ATT

O

Muting control signal output to the power amplifier (IC500)    “H”: muting on

56

AMP ON

O

Standby control signal output to the power amplifier (IC500)    “L”: standby, “H”: amp on

57

ILL IN

I

Illuminate line detect signal input for the auto dimmer control    Dimmer is present at input of “L”

58

LOCK IN

I

Mini-disc lock detection signal input from the MD mechanism controller (IC501)    “H”: lock

59

EMPH ON

O

Emphasis control signal output to the D/A converter (IC202)    “H”: emphasis on

60

AU ATT

O

Audio line muting on/off control signal output terminal    “H”: muting on

61

AF ATT

O

RDS AF playing attenuate signal output terminal    Not used (open)

62

TU ATT

O

Tuner signal (FM and AM) muting on/off control signal output    “H”: muting on

63

VSS

—

Ground terminal

64

ACC IN

I

Accessory detect signal input terminal    “L”: accessory on

65

AF SEEK

O

RDS AF seek control signal output terminal    Used for the MDX-C7900R only

66

NC

O

Not used (open)

67

DAVN

I

Data transmit completed detect signal input from the RDS decoder (IC102)
Used for the MDX-C7900R only

68, 69

NC

O

Not used (open)

70

RDS SI

I

Serial data input from the RDS decoder (IC102)    Used for the MDX-C7900R only

71

RDS CKI

I

Serial data transfer clock signal input from the RDS decoder (IC102)
Used for the MDX-C7900R only

72

RC IN1

I

Rotary remote commander shift key A/D input terminal

73

X1A

O

Sub system clock output terminal (32 kHz)

74

X0A

I

Sub system clock input terminal (32 kHz)

75

NC

O

Not used (open)

76

BU IN

I

Battery detect signal input from the SONY bus interface (IC600) and battery check circuit
“H”: battery on

77, 78

NC

O

Not used (open)

79

KEYACK

I

Input of acknowledge signal for the key entry    Acknowledge signal is input to accept function
and eject keys in the power off status    On at input of “H”

80

TEL ATT

I

Telephone muting signal input terminal    At input of “L”, the signal is attenuated by –20 dB

81

ST IN/MONO

I/O

82

SEEKOUT

O

Seek control signal output to the FM/AM tuner unit (TU1) (AM mode: used for IF count output,
SD request, AGC cut etc., FM mode: used for SEEK, BTM, AF playing SD speed up etc.)

83

SD IN

I

Station detector detect input from the FM/AM tuner unit (TU1)
Stop level for SEEK, BTM, etc. is determined    SD is present at input of “H”

84

NC (MONO)

I

Not used (open)

Input of FM stereo detection signal from FM/AM tuner unit (TU1), and output of forced
monaural control signal to FM/AM tuner unit (TU1)  (Commonly used for stereo display input
and forced monaural output)
FM stereo detection at input of “L”, forced monaural at output of “L”

Key input terminal (A/D input)
MDX-C7900: Z, LIST, DSPL, 10, 9, 8, 7, 6, 5 keys input (LSW812 and LSW814 to LSW821)
MDX-C7900R: Z, DSPL, LIST PTY, AF/TA, 10, 9, 8, 7, 6, 5 keys input
(LSW812  to LSW821)