Read LG 50PN4503-ZA / 50PN450B-ZA (CHASSIS:PD31A) Service Manual online
5. L13
Front End
Use 2ea PCB for each tuner and apply different circuit option and tool option
Tool option4
-T/C
Digital Demod-S : DVB S7
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Digital Demod-T/C : DEFAULT
Analog Demod : MSTAR_56
T2/C
-T2/C
Digital Demod-S : NO_DEMOD
Digital Demod-T/C : DVBS_SI2169
Digital Demod-T/C : DVBS_SI2169
Analog Demod : SI2176
EU/AU/JA
-T/C/S2
Digital Demod-S : DVB_S7
Digital Demod-T/C : DVBS_SI2166B
Digital Demod-T/C : DVBS_SI2166B
Analog Demod : MSTAR 58
T/C/S Tuner Area
T2/C Tuner Area
T/C Tuner Area
T/C Tuner Area
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T/C Tuner Area
Only Setellite