50LA6650 (CHASSIS:LA33B) - LG TV Service Manual (repair manual). Page 74

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3. RF Pairing / Un-pairing Method
Method
Description
RF Pairing
™ Method1
– If unpaired, just press Wheel key.
– If paired, press Wheel key after 
unpairing.
™ Method 2 (Repairing)
– Press “BACK" button for 5 sec.
• When do pairing, the remote 
should make pairing request IR 
signal(0x29) to TV.
• When TV receive the IR signal, it 
should send "pairing request 
packet" to the RF receiver.
• After pairing success, the remote 
should blink LED for some time and 
TV send "pairing success packet" 
back to TV.
• When remote try to unpairing, it 
doesn’t care about state of 
receiver(stand alone).
RF Unpairing
Press “HOME" button and “BACK" button at 
the same time for 5 sec.
• When remote try to unpairing, it 
doesn’t care about state of 
receiver(stand alone).
• After unpairing, all pairing 
information should be erased.
• After unpairing, LED should be 
blinked for 3sec.
• The remote just becomes to IR 
mode.
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