Sony RMT-V293A, LX70S, RMT-V294A, LX60S System Control VIDEO/RP Block Interface MA-405 Board IC160

5-3. SYSTEM CONTROL — SYSTEM CONTROL PERIPHERAL CIRCUIT INTERFACE (MA-405 BOARD IC160)

Signal	Pin No.	I/O	I/O level
RESET	MA-405 Board	I	Normally “H”, “L” when service interruption detected or restored.
	IC160 ef
I2C DATA 1	MA-405 Board	I/O	Serial communication data to EEPROM I2C161.
	IC160 es
I2C CLOCK 1	MA-405 Board	O	Serial communication clock to EEPROM I2C161.
	IC160 ea
I2C DATA VIDEO	MA-405 Board	I/O	Serial communication data to video and audio microprocessor.
	IC160 us
I2C CLOCK VIDEO	MA-405 Board	O	Serial communication clock to video and audio microprocessor.
	IC160 ua
(ARC) S OUT 1	MA-405 Board	I/O	Serial communication data to ARC microprocessor.
	IC160 rs
(ARC) CLK 1	MA-405 Board	O	Serial communication clock to ARC microprocessor.
	IC160 ra

5-4. SYSTEM CONTROL AND RF MODULATOR — INPUT SELECTION BLOCK INTERFACE (MA- 405 BOARD IC160)

Signal	Pin No.
ANT SEL	MA-405 Board
	IC160 wa

I/O	I/O level
O	“H” when RF modulator through.

5-5. SYSTEM CONTROL — VIDEO/RP BLOCK INTERFACE (MA-405 BOARD IC160)

Signal	Pin No.	I/O	STOP/FF	TAPE	TAPE	PB	REC	REC/
			/REW	LOADING	UNLOADING			PAUSE
RF SWP	MA-405 Board	O	*1	*1	*1	*1	*1	*1
	IC160 qk
QVD	MA-405 Board	O	L	L	L	*2	L	L
	IC160 qd
C SYNC	MA-405 Board	I	*3	*3	*3	*3	*3	*3
	IC160 tk

*1. Synchronized with drum rocation, 30Hz 50% duty pulse.

*2. Normal “L”, “H” when video signal is not rgenerated.

*3. Composite sync signal (positive).

5-6. SYSTEM CONTROL — AUDIO BLOCK INTERFACE (MA-405 BOARD IC160)

Signal	Pin No.	I/O	STOP/FF	TAPE	TAPE	PB	REC	REC/
			/REW	LOADING	UNLOADING			PAUSE
A MUTE	MA-405 Board	O	L	L	L	L	L	L
	IC160 yd
AF REC P	MA-405 Board	O	L	L	L	L	H	L
	IC160 ws

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