
– 112 –
Pin No.
Pin Name
I/O
Function
83
TS25
I
Test pin (Connected to ground).
84
LDDR
O
Laser APC signal output
85
TRDR
O
Tracking servo drive signal output (–)
86
TFDR
O
Tracking servo drive signal output (+)
87
FFDR
O
Focus servo drive signal output (+)
88
DVDD
—
Power supply (+5V) (Digital system)
89
FRDR
O
Focus servo drive signal output (–)
90
FS4
O
176.4 kHz clock signal output (MCLK system)
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
DCLO
O
Usually not used (Open).
96
DCLI
I
Usually not used (Connected to DVDD).
97
XDCL
—
Usually not used (Open).
98
OFTRK
O
Off track signal output
99
COUT
O
Traverse count signal output
100
DVSS
—
GND (Digital system)
* I/O (3) stands for 3-state output. (A) stands for analog output.
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