Read LG 50PH4700-SD / 50PH470H-SA (CHASSIS:PB32A) Service Manual online
18. 3D Emitter
Check 3D Emitter Cable
Y
Check 3.3V voltage level at
N
Re -check of
P4100 No 1 pin
P4100 & Recheck
Y
Check Signal 3D Sync _RF
N
Replace one of
Main Chip(IC105) & Recheck
Y
Replace one of
BT Ass’y & Recheck
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