Sony KDP 57XBR2 Operating Instructions Manual page 79

Other Information
Tips
If more than one code number is listed, try entering them one by
one until you come to the correct code for your equipment.
If you enter a new code number, the code number you previously
entered at that setting is erased.
In some cases, you may not be able to operate your equipment
with the Sony remote control. In such cases, use the equipment's
own remote control unit.
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