– 40 –
Pin No. Pin Name I/O Function
79 MUTE I Mute signal input terminal Fixed at “L” in this set
80 SENS O Internal status (SENSE) signal output to the system controller (IC701)
81 XRST I
Reset signal input from the system controller (IC701) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
82 DIRC I 1-track jump mode input terminal Not used (fixed at “H”)
83 SCLK I Sense serial data reading clock signal input from the system controller (IC701)
84 DFSW I Defect on/off select signal input terminal Not used (fixed at “L”)
85 ATSK I Input terminal for the anti-shock Not used (fixed at “L”)
86 DATA I Serial data input from the system controller (IC701)
87 XLAT I Serial data latch pulse signal input from the system controller (IC701)
88 CLOK I Serial data transfer clock signal input from the system controller (IC701)
89 COUT O Track number count signal output terminal Not used (open)
90 DVDD — Power supply terminal (+3.3V) (digital system)
91 MIRR O Mirror detection signal output terminal Not used (open)
92 DFCT O Defect signal output terminal Not used (open)
93 FOK O Focus OK signal output terminal Not used (open)
94 FSW O Selection signal output terminal of the output filter for spindle motor Not used (open)
95
MON O Spindle motor on/off control signal output terminal Not used (open)
96
MDP O Spindle servo control signal output to the BA3890F (IC602)
97
MDS O Spindle servo control signal output to the BA3890F (IC602)
98
LOCK O
GFS is sampled by 460 Hz “H” output when GFS is “H” Not used (open)
99 SSTP I
Detection input from the sled limit-in detect switch (S910)
The optical pick-up is inner position when “H”
100 SFDR O Sled servo drive PWM signal (+) output to the MPC17A38ZVMEL (IC502)
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