Sony LX70S, RMT-V293A System Control Mechanism Block Interface MA-405 Board IC160, Signal Pin No

SLV-LX40/LX50/LX60S/LX70S

SECTION 5

INTERFACE, IC PIN FUNCTION DESCRIPTION

5-1. SYSTEM CONTROL — MECHANISM BLOCK INTERFACE (MA-405 BOARD IC160)

Signal

Pin No.

I/O

EJECTED

CASSETTE

CASSETTE

TAPE

TAPE

STOP

FF

REW

PB

REC

LOARDING

UNLOARDING

THREADING

UNTEREADING

CAM

MA-405 Board

O

*5

H

L

H

L

*5

*5

*5

*5

*5

IC160 ed

MODE 1

MA-405 Board

I

—

—

—

—

—

H

H

H

H

H

IC160 wl

MODE 2

MA-405 Board

I

—

—

—

—

—

L

L

L

H

H

IC160 wk

MODE 3

MA-405 Board

I

—

—

—

—

—

H

H

H

L

L

IC160 wj

MODE 4

MA-405 Board

I

—

—

—

—

—

H

L

L

L

L

IC160 wh

REC PRF

MA-405 Board

I

L

*1

*1

*1

*1

*1

*1

*1

*1

*1

IC160 e;

T REEL

MA-405 Board

I

H/L

H/L

H/L

H/L

H/L

H/L

*2

*2

*2

*2

IC160

8

S REEL

MA-405 Board

I

H/L

H/L

H/L

*2

*2

H/L

*2

*2

*2

*2

IC160 ul

END LED

MA-405 Board

O

L

*3

*3

*3

*3

*3

*3

*3

*3

*3

IC160 w;

T SENS

MA-405 Board

I

*3

*3

*3

*4

*4

*4

*4

*4

*4

*4

IC160

7

S SENS

MA-405 Board

I

*3

*3

*3

*4

*4

*4

*4

*4

*4

*4

IC160

6

*1 “L” When erasing protection tab is bent. “H” when not bent.

*2 Pulse of period in proportion to reel rotating speed.

*3 Approx. 2 msec period “H” pluse when tape top or end is detected.

*4 Normally “L”. 2 msec period “H” puise when tape top or end is detected. *5 Hi-Z

5-2. SYSTEM CONTROL — SERVO PERIPHERAL CIRCUIT INTERFACE (MA-405 BOARD IC160)

	Signal	Pin No.	I/O	STOP	FF	REW	TAPE	TAPE	PB	REC
							THREADING	UNTEREADING
	CTL IN+	MA-405 Board	O	*7	*7	*7	*7	*7	*7	*1
		IC160 og
DRUM PG		MA-405 Board	I	*3	*3	*3	*3	*3	*3	*3
		IC160 o;
DRUM FG		MA-405 Board	I	*4	*4	*4	*4	*4	*4	*4
		IC160 il
	CAP FG	MA-405 Board	I	H/L	*2	*2	*5	*5	*2	*2
		IC160 ij
CAP RVS		MA-405 Board	O	H/L	L	H	L	H	L	L
		IC160 ef
CAP ERR		MA-405 Board	O	L	*6	*6	*6	*6	*6	*6
		IC160 uh
DRUM ERR		MA-405 Board	O	*6	*6	*6	*6	*6	*6	*6
		IC160 uj
*1.	30Hz pulse.
*2.	Pulse of period in propotion to tape speed.
*3.	30Hz “H” pluse.
*4.	720 Hz pulse.
*5.	Unstable period pulse.
*6.	DC voltage 1 – 5V.
*7.	Hi-Z (2.5V)

5-1