Sony 4-216-840-0 Ader, Byte, Cnvss, Down, Beep OUT, L3-CLOCK, Flcs, Flclk, Da Rst

•MAIN BOARD IC501 M30620MC-400FP (SYSTEM CONTROLLER)

Pin No.	Pin Name		I/O			Description
1, 2		NC	O	Not used (open)
3		C1	O	Monitor output terminal for the test		C1 error rate is output when test mode
4		ADER	O	Monitor output terminal for the test		ADER is output when test mode
5		SQSY	I	Subcode Q sync (SCOR) input from the CXD2654R (IC121)
				“L” is input every 13.3 msec	Almost all, “H” is input
6		RMC	I	Remote control signal input from the remote control receiver (IC781)
7		A1 IN	I	Sircs remote control signal input of the CONTROL A1				Not used
8		BYTE	I	External data bus line byte selection signal input			“L”: 16 bit, “H”: 8 bit (fixed at “L”)
9		CNVSS	—	Ground terminal
10		XT-IN	I	Sub system clock input terminal (32.768 kHz)			Not used (fixed at “L”)
11		XT-OUT	O	Sub system clock output terminal (32.768 kHz)			Not used (open)
12		S.RST	I	System reset signal input from the reset signal generator (IC406) “L”: reset
				For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
13		XOUT	O	Main system clock output terminal (10 MHz)
14		GND	—	Ground terminal
15		XIN	I	Main system clock input terminal (10 MHz)
16		+3.3V	—	Power supply terminal (+3.3V)
17		NMI	I	Non-maskable interrupt input terminal (fixed at “H” in this set)
18		DQSY	I	Digital In U-bit CD format subcode Q sync (SCOR) input from the CXD2654R (IC121)
				“L” is input every 13.3 msec	Almost all, “H” is input
19		P.DOWN	I	Power down detection signal input terminal “L”: power down, normally: “H”
20	KEYBOARD CLK		I	Not used (open)
21	KEYBOARD DATA		I	Not used (open)
22	BEEP OUT		O	Beep sound drive signal output terminal Not used (open)
23		XINT	I	Interrupt status input from the CXD2654R (IC121)
24 to 27		NC	O	Not used (open)
28	L3-CLOCK		O	Serial data transfer clock signal output to the A/D, D/A converter (IC301)
29		NC	O	Not used (open)
30	L3-DATA		O	Serial data output to the A/D, D/A converter (IC301)
31		SWDT	O	Writing data output to the CXD2654R (IC121)
32		SRDT	I	Reading data input from the CXD2654R (IC121)
33		SCLK	O	Serial clock signal output to the CXD2654R (IC121)
34		FLCS	O	Chip select signal output to the FL/LED driver (IC761)
35		FLDATA	O	Serial data output to the FL/LED driver (IC761)
36		NC	O	Not used (open)
37		FLCLK	O	Serial data transfer clock signal output to the FL/LED driver (IC761)
38 to 40		NC	O	Not used (open)
41		NC	I	Not used (fixed at “L”)
42		JOG1	I	JOG dial pulse input from the rotary encoder (S713 = AMS +) (B phase input)
43		JOG0	I	JOG dial pulse input from the rotary encoder (S713 = AMS +) (A phase input)
44		NC	O	Not used (open)
45		A1 OUT	O	Sircs remote control signal output of the CONTROL A1				Not used
46		NC	I	Not used (fixed at “L”)
47	L3-MODE		O	L3 mode control signal output to the A/D, D/A converter (IC301)
48		DA RST	O	Reset signal output for the A/D, D/A converter			“L”: reset Not used (open)
49		MUTE	O	Audio line muting on/off control signal output terminal				“L”: line muting on

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