Sony MDX-C5970R service manual Sfdr, Sprd, Spfd, TEST1 TEST2, TEST3 Dvss

Pin No.	Pin Name	I/O	Function
92	SFDR	O	Sled servo drive PWM signal (+) output to the BH6511FS (IC303)
93	SPRD	O	Spindle servo drive PWM signal (–) output to the BH6511FS (IC303)
94	SPFD	O	Spindle servo drive PWM signal (+) output to the BH6511FS (IC303)
95	FGIN	I	Not used (fixed at “L”)
96	TEST1	I
97	TEST2	I	Input terminal for the test (fixed at “L”)
98	TEST3	I
99	DVSS	—	Ground terminal (digital system)
100	EFMO	O	EFM signal output terminal when recording mode Not used (open)

* I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.

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