To Cancel The Learned Operating Codes - Toshiba VCR remote Programming Manual

function names of the AUX buttons you have programmed.
Use a ballpoint pen etc. to write the function names.
AUD. SET UP OPTION
0 0 0 0
LEARN m USE

TO CANCEL THE LEARNED OPERATING CODES

Set the TV/CABLE/VCR/AUX switch to AUX.
for about 1 second until the LEARN indicator lights up.
Hold d own RECALL and RESET at the same time for about 6 seconds
until the LEARN indicator goes off after blinking.
Note:
You cannot cancel the programming if you release the button
while the indicator is blinking.
Set
the LEARN-USE switch to USE.
LEARN 1-u USE