Read LG 42LV5400 (CHASSIS:LA12E) Service Manual online
18. Trouble shooting - Wireless media box - connection error
Check input Wireless media box & dongle
Check wireless Cable conductors
for damage or open conductor
Check JK1001
Soldering state
Check L1001 24V
ok
ok
ok
No
No
Replace Jack
ok
Check power board
Check Wireless _DET
Check R1007 3.3V
Replace Jack
3.3V
Replace BCM( IC101)
or Main Board.
High
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