Sony MDS-JE630 service manual

Pin No.		Pin Name			I/O				Description
50			STB		O	Strobe signal output to the power supply circuit “L”: standby mode, “H”: power on
51		CHACK IN			I	Detection input from the disc chucking-in detect switch “L”: chucking
						Not used (fixed at “H”)
52			NC		O	Not used (open)
53		PACK-OUT			I	Detection input from the loading-out detect switch (S602)
						“L” at a load-out position, others: “H”
54			LDIN		O	Motor control signal output to the loading motor driver (IC471)				“L” active	*1
55		LDOUT			O	Motor control signal output to the loading motor driver (IC471)				“L” active	*1
56		LD-LOW			O	Loading motor drive voltage control signal output for the loading motor driver (IC471)
						“H” active
57, 58			NC		O	Not used (open)
59		REC-P			I	Detection input from the recording position detect switch (S601)				“L” active
60			PB-P		I	Detection input from the playback position detect switch (S604)				“L” active
61		REC/PB			I	Not used (fixed at “L”)
62			+3.3V		—	Power supply terminal (+3.3V)
63			NC		O	Not used (open)
64			GND		—	Ground terminal
65			SDA		I/O	Two-way data bus with the EEPROM (IC171)
66		MNT3 (SLOCK)			I	Spindle servo lock status monitor signal input from the CXD2656R (IC121)
67		WR-PWR			O	Laser power select signal output to the CXD2656R (IC121) and HF module switch circuit
						“L”: playback mode, “H”: recording mode
68		PROTECT			I	Rec-proof claw detect input from the protect detect switch (S102)				“H”: write protect
69		REFLECT			I	Detection input from the disc reflection rate detect switch (S102)
						“L”: high reflection rate disc, “H”: low reflection rate disc
70		LDON			O	Laser diode on/off control signal output to the automatic power control circuit					“H”: laser on
71			SENS		I	Internal status (SENSE) input from the CXD2656R (IC121)
72		MNT1 (SHOCK)			I	Track jump detection signal input from the CXD2656R (IC121)
73		DIG-RST			O	Reset signal output to the CXD2656R (IC121) and BH6511FS (IC152) “L”: reset
74		MNT2 (XBUSY)			I	Busy signal input from the CXD2656R (IC121)
75		XLATCH			O	Serial data latch pulse signal output to the CXD2656R (IC121)
						Laser modulation select signal output to the HF module switch circuit
						Stop: “L”, Playback power: “H”,
						Recording power:
									0.5 sec
76			MOD		O
								2 sec
77		LIMIT-IN			I	Detection input from the sled limit-in detect switch (S101)
						The optical pick-up is inner position when “L”
78		MNT0 (FOK)			I	Focus OK signal input from the CXD2656R (IC121)
						“H” is input when focus is on (“L”: NG)
*1 Loading motor (M103) control
Terminal			Mode	LOADING			EJECT	BRAKE	RUN IDLE
	LDIN (pin %¢)				“L”		“H”	“L”	“H”
	LDOUT (pin %°)				“H”		“L”	“L”	“H”

– 63 –