LG GSA-4167B Service Manual page 60

Servo Pin List
Pin Name
BLANK
DEFECT
SFG
EFG
TLD
SPD
LDD
LED
ATZC
FE
PE
SIGM
TE
LPSA
TCPH
TIBH
BCENT
GAD1
GAD0(VRDC2N)
FOD
TRD
TVDP
TVDN
DAVC
Pin No. I/O destination Function
156 I AFE
157 I AFE
213 IU DRVR
214 I PU
212 TO DRVR
211 TO DRVR
210 TO DRVR
209 TO PU
172 AI AFE
169 AI AFE
170 AI AFE
171 AI AFE
173 AI AFE
174 AI AFE
175 AI AFE
176 AI AFE
177 AI AFE
179 AI
178 AI
180 AO DRVR
181 AO DRVR
182 AO DRVR
183
184 AO DRVR
Blank signal input
(also connected to the H8S interrupt port INT5)
Defect (scratch detect) signal
Spindle FG pulse
(also input to the H8S interrupt port INT4)
Spindle FG pulse for Light Scribe
(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)
Tracking Zero Cross input signal
Focus error: sampled at 352.8 kHz
Laser power error: sampled at 352.8 kHz
Signal monitor: sampled at 88.2/176.4 kHz
Tracking error: sampled at 352.8 kHz
Lens positioning/lens error: 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
General AD input: sampled at 88.2 kHz
General AD input: sampled at 176.4 kHz
Focus control signal
Tracking control signal
Sled drive signal (normal phase)
Sled drive signal (counter phase)
Servo system Vcc/2 voltage output pin
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