LG CRD-8483B Service Manual page 23

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