– 33 –
Pin No. Pin Name I/O Description
90 FS4 O Clock signal (176.4 kHz) output terminal (X’tal system) Not used (open)
91 SRDR O Sled servo drive PWM signal (–) output to the BH6511FS (IC152)
92 SFDR O Sled servo drive PWM signal (+) output to the BH6511FS (IC152)
93 SPRD O Spindle servo drive PWM signal (–) output to the BH6511FS (IC152)
94 SPFD O Spindle servo drive PWM signal (+) output to the BH6511FS (IC152)
95
FGIN
I (S)
96
TEST1 I
97
TEST2 I
98
TEST3 I
99 DVSS — Ground terminal (digital system)
100 EFMO O EFM signal output terminal when recording mode
* I (S) stands for schmitt input, I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.
Input terminal for the test (fixed at “L”)
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