Sony HCD-PX333 LVL1, LVL0, Darst, Slicersel, Ld-Low, Ldin, Mod, Byte, Cnvss, Cin, Reset, VSS0

HCD-PX333

•MD DIGITAL BOARD IC1001 M30805MG-205GP (MD MECHANISM CONTROLLER)

Pin No.

Pin Name

I/O

Description

1, 2

—

O

Not used (open)

3

LVL1

O

L-ch level output terminal Not used (open)

4

LVL0

O

R-ch level output terminal

Not used (open)

5 to 7

—

O

Not used (open)

8

O

Muting control signal output to the D/A converter (IC1006) “L”: muting

MUTE

9

DARST

O

Reset signal output to the D/A converter (IC1006)

“H”: reset

10

SLICERSEL

O

IEC958 input selection signal output to the D/A converter (IC1006) “L”: MD, “H”: CD

11

LD-LOW

O

Loading motor drive voltage control signal output for the loading motor driver (IC1004)

“H” active

12

LDIN

O

Motor control signal output to the loading motor driver (IC1004)

“L” active

*1

13

LDOUT

O

Motor control signal output to the loading motor driver (IC1004)

“L” active

*1

Laser modulation select signal output to the HF module switch circuit

Stop: “L”, Playback power: “H”,

Recording power:

14

MOD

O

0.5 sec

2 sec

15

BYTE

I

External data bus line byte selection signal input

“L”: 16 bit, “H”: 8 bit (fixed at “L”)

16

CNVSS

I

Mode setting terminal “L ”: single-chip mode (fixed at “L ”)

17

X-CIN

I

Sub system clock input terminal

Not used (open)

18

X-COUT

O

Sub system clock output terminal

Not used (open)

System reset signal input from the reset signal generator (IC931)

“L”: reset

19

RESET

I

For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”

20

XOUT

O

Main system clock output terminal (10 MHz)

21

VSS0

—

Ground terminal

22

XIN

I

Main system clock input terminal (10 MHz)

23

VCC0

—

Power supply terminal (+3.3V)

24

I

Non-maskable interrupt input terminal “L” active (fixed at “H” in this set)

NMI

25

DQSY

I

Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2662R (IC151)

“L” is input every 13.3 msec

Almost all, “H” is input

26

P.DOWN

I

Power down detection signal input from the system controller (IC501)

“L”: power down, normally: “H”

27

SQSY

I

Subcode Q sync (SCOR) input from the CXD2662R (IC151)

“L” is input every 13.3 msec

Almost all, “H” is input

28

NC

O

Not used (open)

29

LDON

O

Laser diode on/off control signal output to the automatic power control circuit

“H”: laser on

30

LIMIT-IN

I

Detection input from the sled limit-in detect switch (S101)

The optical pick-up is inner position when “L”

*1 Loading motor (M103) control

Mode

LOADING

EJECT

BRAKE

RUN IDLE

Terminal

LDIN (pin qs)

“L”

“H”

“L”

“H”

LDOUT (pin qd)

“H”

“L”

“L”

“H”

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