LG GSA-4081B, Service Manual

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Pin no. Pin Name Type Function
68 EQON Differential-Output RF Equalizer differential output port.
69 EQOP Differential-Output RF Equalizer differential output port.
70 EQOS/RRF/WRF Analog-Output RF Equalizer single output port.
71 RQHPF External-capacitor required AGC-DET input high path filter capacity connecting
port.
72 VCC1 Power Power.
73 AGHPF External-capacitor required High path filter capacity connection for AGC.
74 AGFU External-capacitor required AGC filter connecting port.
75 AGFR External-capacitor required AGC filter connecting port.
76 SUMF Analog-Input/ SUM RF input/SUM differential AMP DC filter
connecting port.
77 SUMF2 Analog-Input SUM RF input.
78 RFIP Differential-Input RF differential input port.
79 RFIN Differential-Input RF differential input port.
80 IREFT External-resistor required External resistor connecting port for reference current
setting.
81 VREF1 Analog-Output 2.1V reference bias voltage output port.
82 VCC2 Power Power.
83 HAVC Analog-Input Pick-Up reference voltage input port.
84 HAVC2 Analog-Input Pick-Up reference voltage input port.
85 SRVREF Analog-Input DSP power voltage [3.3V] input.
86 SA Analog-Input Sub beam 4D input port.
87 SB
88 SC
89 SD
90 TRP Differential-Input Tracking error differential direct input port.
91 TRN
92 FOP Differential-Input Focus error differential direct input port.
93 FON
94 GND2 Ground Ground.
95 MA Analog-Input Main beam 4D input port.
96 MB
97 MC
98 MD
99 LPSIN1 Analog-Input Lens shift signal input port.
100 LPSIN2 Analog-Input Lens shift signal input port.
External-capacitor required