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1.4.2 Servo Pin List
Pin Name
Pin No.
DEFECT
51
BLANK
57
TZC
58
SFG
86
TLD
87
SPD
88
LDD
89
LED
90
FE
100
PE
101
SIGM
102
TE
103
LPSA
104
LPSB
105
TCPH
106
TIBH
107
BCENT
108
VRDC2N
109
VRDC2NREF
112
PUTEMP
113
DRVOFSP
114
DRVOFSM
115
FOD
116
TRD
117
TVDP
118
TVDN
119
DAVC
120
I/O
Destination
I
AFE
I
AFE
I
AFE
IU
DRVR
TO
DRVR
TO
DRVR
TO
DRVR
TO
PU
AI
AFE
AI
AFE
AI
AFE
AI
AFE
AI
AFE
AI
AFE
AI
AFE
AI
AFE
AI
AFE
AI
AFE
AI
OP Amp
AI
PU
AI
DRVR
AO
DRVR
AO
DRVR
AO
DRVR
AO
DRVR
Function
Defect (scratch detect) signal
Blank signal input (also connected to the H8S interrupt port
INT5)
Tracking Zero Crossing signal input
Spindle FG pulse (also input to the H8S interrupt port INT4)
Tilt drive signal (PWM output)
Spindle drive signal (PWM output)
Loading drive signal (PWM output)
LPS_LED control signal (PWM output)
Focus error: sampled at 352.8 kHz
Laser power error : sampled at 176.4 kHz
Signal monitor: sampled at 176.4 kHz
Tracking error: sampled at 352.8 kHz
Lens positioning/lens error : sampled at 88.2 kHz
Lens positioning B : sampled at 88.2 kHz
Tracking center/BETA top hold : sampled at 44.1/176.4 kHz
Tilt error/BETA bottom hold: sampled at 44.1/176.4 kHz
BETA center: sampled at 176.4 kHz
APC read system laser driver control pin: sampled at 176.4
kHz
APC reference voltage input: sampled at 88.2 kHz
Pick-up temperature monitor input: sampled at 88.2 kHz
Driver offset adjustment input (plus/minus)
sampled at 88.2 kHz
Focus control signal
Tracking control signal
Sled drive signal (normal phase)
Sled drive signal (counter phase)
Servo system Vcc/2 voltage output pin
59
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