Sony MDX-C6500RV service manual Illin

Pin No.	Pin Name	I/O			Description
78	ILLIN	I	Auto dimmer control illumination line detection signal input terminal
			“H” is input at dimmer detection	Not used (fixed at “L”)
79	TELATT	I	Telephone detection signal input terminal		At input of “H”, the signal is attenuated by –20 dB
80	NCO	O	Not used (open)
81	TEST IN	I	Setting terminal for the test mode	“L”: test mode, Normally: fixed at “H”
82	ACC IN	I	Accessory detection signal input terminal		“L”: accessory on
83	NCO	O	Not used (open)
84	LOCKIN	I	Mini-disc lock detection signal input from the MD mechanism controller (IC501) “H”: lock
85	RCIN1	I	Rotary remote commander shift key input terminal				“L”: shift
86	HSTX	I	Hardware standby input terminal	“L”: hardware standby mode				Reset signal input in this set
87	MD2	I	Setting terminal for the CPU operational mode (fixed at “L” in this set)
88	MD1	I	Setting terminal for the CPU operational mode (fixed at “H” in this set)
89	MD0	I	Setting terminal for the CPU operational mode (fixed at “H” in this set)
90	RSTX	I	System reset signal input from the reset signal generator (IC652) and reset switch (SW503)
			“L”: reset “L” is input for several 100 msec after power on, then it changes to “H”
91	VSS	—	Ground terminal
92	X0	I	Main system clock input terminal (3.68 MHz)
93	X1	O	Main system clock output terminal (3.68 MHz)
94	VCC	—	Power supply terminal (+5V)
95 to 97	NCO	O	Not used (open)
98	DIM SEL	I	Setting terminal for the dimmer	“L”: dimmer in, “H”: no dimmer (fixed at “L” in this set)
99	TAP CD	I	Setting terminal for the internal mechanism tape or CD
			“L”: CD, “H”: tape (fixed at “L” in this set)
100, 101	NCO	O	Not used (open)
102	AMTL IN	I	Auto metal detection signal input terminal “L”: auto metal Not used (open)
103	AMS IN	I	Input terminal of whether a music is present or not is detected at auto music sensor
			“L”: music is present, “H”: music is not present			Not used (open)
104	REEL	I	Rotation detect signal input terminal Not used (open)
105	POS0	I
			Tape position (EJECT/FF/REW/REV/		POS0: “L”: EJECT mode, “H”: others mode
106	POS1	I
			FWD mode) detect input from the tape		POS1: “L”: FF and FWD mode, “H”: others mode
107	POS2	I	operation switch on the deck mechanism		POS2: “L”: REW mode, “H”: others mode
			Not used this function (open)		POS3: “L”: REV and EJECT mode, “H”: others mode
108	POS3	I
109	LM EJ	O	Loading motor control signal output terminal			“H” active
			(For the eject direction and reverse side operation)				Not used (open)
110	LM LD	O	Loading motor control signal output terminal			“H” active
			(For the loading direction and forward side operation) Not used (open)
111	CM ON	O	Capstan/reel motor control signal output terminal				“H”: motor on	Not used (open)
112	TAPON	O	Tape system power supply on/off control signal output terminal “H”: tape on Not used (open)
113	N ROUT	O	Forward/reverse direction control signal output terminal
			“L”: forward direction, “H”: reverse direction			Not used (open)
114	AMSON	O	Tape auto music sensor control signal output terminal
			“L” is output to lower the gain for audio level at FF/REW mode					Not used (open)
			METAL control in/out terminal
115	MTLON	I/O	At initial mode: auto/manual mode selection input of METAL function (manual at “L” input)
			At manual mode: METAL on/off control signal output terminal (METAL on at “H” output)
			Not used this function (open)
			Dolby control in/out terminal
116	DOLON	I/O	At initial mode: valid/invalid selection input of dolby function (valid at “L” input)
			At normal mode: dolby on/off control signal output terminal (dolby on at “H” output)
			Not used this function (open)

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