Read LG 50PH670S-ZD (CHASSIS:PD32A) Service Manual online
17. 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
Main Chip(IC105) & Recheck
Y
Replace one of
BT Ass’y & Recheck
BT Ass’y & Recheck