Universal Remote Control (URS) UR3-SR3 - Manual (Page 20)

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*Note : For TV/DVD combination units, Please use
following steps to operate the volume control.
STEP1 Press the [CBL] button and the [OK/SEL] button
simultaneously for 3 seconds. The device LED
will turn on for 20 seconds. The next step must
be performed while the LED is on.
STEP2 Press the [VOL
5] button.
STEP3 Press the [DVD] button. The CBL device LED will
blink twice to confirm the programming.