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LG CRD-8483B Service Manual page 23

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Pin No.
Symbol
FMO2
151
152
ENDM
153
DMO
TEBC
154
155
RFGC
156
PWMVREF
PWM2VREF
157
158
PDMVSS
159
TRO
FOO
160
161
PDMVDD
Signal Amplifier Interface
162
SBAD
163
TEZILP
TEZI
164
165
TEI
166
FEI
RFRO
167
168
RFRPSLV
169
HRFZC
RFBIAS
170
171
RFIS
172
RFI
ADCVSS
173
174
RFDTSLV
175
SCO
ADCVDD
176
Type
Description
Analog Output
Programming PWM output. For stepping motor (sledge) application.
TTL Output
Enable/disable disk motor. A logical high enables disk motor.
Analog Output
Disk motor control output. PWM output.
Analog Output
Tracking error balance control. PWM output.
Analog Output
RF data gain control. PWM output.
Analog Input
A reference voltage input for PWM circuitry. A typical value of 2.0 v.
Analog Input
A reference voltage input for PWM circuitry. A typical value of 4.0 v.
Ground
Ground for PDM circuitry.
Analog Output
Tracking servo output. PDM output of tracking servo compensator.
Analog Output
Focus servo output. PDM output of fucus servo compensator.
Analog Power(5V)
Power for PDM circuitry.
Analog Input
Sub beam add input (E+F).
Analog Input
Tracking error zero crossing low pass input.
Analog Input
Tracking error zero crossing input.
Analog Input
Tracking error input.
Analog Input
Focus error input.
Analog Output
RF ripple detect output.
Analog Output
RF ripple slice level output.
Analog Input
High frequency RF ripple zero crossing.
Analog Input
RF ripple bias adjustment input.
Analog Input
RF ripple input.
Analog Input
RF signal input
Ground
Ground pin for ADC circuitry.
Analog Output
RF data slicer level output.
Analog Output
Analog slicer current output.
Analog Power(5V)
Power pin for ADC circuitry.
21

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