Universal Remote Control Universl Remote Owner's Manual page 21

IMPORTANT: If you don't press a button within 20 seconds, the
LED light will turn off and exit the set-up mode and you will need
to start over.
STEP 2: Press the VOLUME UP button and then press either the TV
or AUDIO button that you want to use for volume. The component
LED light will blink three times to confirm it is saved. This sets up
a group of three buttons (VOLUME UP, VOLUME DOWN and MUTE)
in one action!
Repeat Steps 1-2 for all other components.
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