Sony service manual MZ-R500/R500PC, Sldw

MZ-R500/R500PC

Pin No.	Pin Name		I/O		Description
99		SLDW	O	Sled motor drive signal output (W) to the motor driver (IC701)/drive control signal
				output (2+)
100		SLCU	I	Spindle motor drive comparison signal input (U) from the motor driver (IC701)
101		SLCV	I	Spindle motor drive comparison signal input (V) from the motor driver (IC701)
102		SLCW	I	Spindle motor drive comparison signal input (W) from the motor driver (IC701)
103	DIFVDD1		—	Power supply terminal (for DSP I/F) (+2.3 V)
104	DIFVSS1		—	Ground terminal (for DSP I/F)
105		EFMO	O	EFM encode data output for the record to the over write head drive (IC601)
106	(MNT0)		O	Internal DSP monitor output (0) terminal		Not used (open)
107	(MNT1)		O	Internal DSP monitor output (1) terminal		Not used (open)
108		MNT2	O	Internal DSP monitor output (2) terminal		Not used (open)
109	(MNT3)		O	Internal DSP monitor output (3) terminal		Not used (open)
110	(SENSE)		O	Internal DSP (SENS) monitor output terminal Not used (open)
111		(TX)	O	Record data output enable signal output monitor terminal of the internal DSP
				Not used (open)
112	(RECP)		O	Laser power changeover signal output monitor terminal Not used (open)
113	DAPVDD3		—	Power supply terminal (for DSP block) (+1.5 V)
114 – 117		NC	O	Output terminal for the external D-RAM		Not used (open)
118	DRAMVSS0		—	Ground terminal (for the external D-RAM)
119	DRAMVDD0		—	Power supply terminal (for the external D-RAM) (+2.4 V)
120 – 138		NC	O	Output terminal for the external D-RAM		Not used (open)
139	DRAMVDD1		—	Power supply terminal (for the external D-RAM) (+2.4 V)
140	DRAMVSS1		—	Ground terminal (for the external D-RAM)
141	TSB MST VDD		—	Power supply terminal (for TSB master communication) (+2.8 V)
142	RMC DTCK		I/O	TSB serial data input/output with the remote commander attached headphone
143	TSB SLV VDD		—	Power supply terminal (for I/F to TSB slave communication) (+2.3 V)
144	(TSB SLVI)		I	TSB slave signal input from the remote commander attached headphone (fixed at “L”)
145	(TSB SLVO)		O	TSB slave signal output from the remote commander attached headphone
				Not used (open)
146		TDI	I	Data input terminal for JTAG	Not used (open)
147		TMS	I	Test mode control input terminal for JTAG		Not used (open)
148		TCK	I	Clock input terminal for JTAG	Not used (open)
149	XTRST		I	Reset input terminal for JTAG	Not used (open)
150		TDO	O	Data output terminal for JTAG	Not used (open)
151	JTAGVDD		—	Power supply terminal (for JTAG) (+2.4 V)
152	JTAGVSS		—	Ground terminal (for JTAG)
153	MCUVDD2		—	Power supply terminal (for the microcomputer block) (+1.5 V)
154	MIFVDD0		—	Power supply terminal (for the microcomputer I/F block) (+2.3 V)
155	MIFVSS0		—	Ground terminal (for the microcomputer I/F block)
156, 157	TEST1, TEST0		I	Input terminal for the main test (normally fixed at “L”)
158		EVA	I	EVA/FLASH chip discrimination terminal		“L”: FLASH chip, “H”: EVA chip
159	OPR LED		O	Not used (open)
160	SSB DATA		I/O	Input/output of SSB serial data with RF amp (IC501)
161	SSB CLK		O	SSB serial clock output to RF amp (IC501)
162	MCUVSS0		—	Ground terminal (for the microcomputer block)
163	(VREC PWM)		O	Over write head control spare terminal Not used (open)
164	VL PWM		O	PWM for the laser automatic power supply voltage control signal output to the power
				control (IC901)
165	VC PWM		O	PWM signal output for the system power supply voltage control to the power control
				(IC901)
166	SPDL AUX PWM		O	PWM signal output for the spindle support to the motor driver (IC701)
167	XPD ADAAUX		O	Not used (open)
168		NC	O	Not used (open)

33