Samsung UE32D6510WK E-Manual page 179

Method 1
4-1. For example, suppose that you want to input "105Chang".
4-2. Press the TTX/MIX button on the remote 3 times to change the input mode
from lower case to numbers.
4-3. Press the 1, 0 and 5 button in numerical order.
4-4. Press the TTX/MIX button on the remote 4 times to change the input mode
from numbers to upper case.
4-5. Press the 2 button on the remote 3 times to input C.
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4-6. Press the TTX/MIX button on the remote 3 times to change the input mode
from upper case to lower case.
4-7. Press buttons on the remote to input the rest of "Chang". When done, press
the ENTERE button.
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