Sony MZ-R37 Avss, Fili, Filo, Xlrf, Lddr, FS4, Srdr, Sfdr, Sprd, Spfd, TEST1, TEST2, TEST3

Pin No.	Pin name	I/O	Pin Description
56	AVSS	—	Ground terminal.
57	PDO	—	Not used (Open).
58	PCO	O	Decoder PLL master clock PLL phase comparison output.
59	FILI	I	Decoder PLL master clock PLL filter input.
60	FILO	O	Decoder PLL master clock PLL filter output.
61	CLTV	I	Decoder PLL master clock PLL VCO control voltage input.
62	PEAK	I	Inputs peak hold signal for light amount signal from RF amplifier (IC501).
63	BOTM	I	Inputs bottom hold signal for light amount signal from RF amplifier (IC501).
64	ABCD	I	Light amount signal from RF amplifier (IC501).
65	FE	I	Input focus error signal from RF amplifier (IC501).
66	AUX1	I	Input of auxiliary signal from RF amplifier (IC501).
67	VC	I	Input of middle point voltage (+1.4 V) from RF amplifier (IC501).
68	ADIO	—	Not used (Open).
69	AVDD	—	Power supply (+2.8 V) for analog.
70	ADRT	—	Not used (Connect to +2.8 V).
71	ADRB	—	Not used (Connect to ground).
72	AVSS	—	Ground terminal.
73	SE	I	Input of sled error signal from RF amplifier (IC501).
74	TE	I	Input of tracking error signal from RF amplifier (IC501).
75	AUX2	—	Not used (Connect to +2.8 V).
76	DCHG	—	Not used (Connect to +2.8 V).
77	APC	—	Not used (Connect to +2.8 V).
78	ADFG	I	Input of ADIP dual FM signal from RF amplifier (IC501) (22.05 kHz ± 1 kHz).
			(TTL Schmit input)
79	FO CONT	O	Focus control output to RF amplifier (IC501).
80	XLRF	I	Latch signal input from RF amplifier (IC501).
81	CKRF	O	RFCK clock (7.35 kHz) signal output.
82	DTRF	I	Serial data input from RF amplifier (IC501).
83	APCREF	I	Laser power setting signal input.
84	LDDR	—	Not used (Open).
85	TRDR	O	Tracking servo drive signal output (–).
86	TFDR	O	Tracking servo drive signal output (+).
87	DVDD	—	Power supply (+2.8 V) for digital.
88	FFDR	O	Focus servo drive signal output (+).
89	FRDR	O	Focus servo drive signal output (–).
90	FS4	O	176.4 kHz clock signal output (MCLK).
91	SRDR	O	Sled servo drive signal output (–).
92	SFDR	O	Sled servo drive signal output (+).
93	SPRD	O	Spindle servo drive signal output (–).
94	SPFD	O	Spindle servo drive signal output (+).
95	FGIN	I	FG signal input from spindle motor driver (IC761).
96	TEST1	—	Not used (Connect to ground).
97	TEST2	—	Not used (Connect to ground).
98	TEST3	—	Not used (Connect to ground).
99	DVSS	—	Ground terminal.
100	EFMO	O	EFM recording signal output.

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