you also need to look at the manual for the remote because you have to program the volume keys.
I am assuming your using the four button universal remote., so this would be what you would want to do.
OPTIONAL: Reprogram How the Channel, Volume and Power Keys Operate
THE VOLUME KEYS
VOL+
, VOL- and Mute always control the TV volume even when you are in STB or DVD modes. (However, the Volume Keys will always control the AUX device when in AUX mode.) This is the way most people will want the remote to work. However, you can change how the Volume Keys work.
If you always want the Volume Keys to control the AUX device …
Some people may want to always adjust the volume using their AUX device (typically a home theater receiver) regardless of the mode they are in.
1. Press and hold the
STB key.
2. While holding down the
STB key, press OK.
3. Release both keys. The Device Keys will blink twice.
4. Press
9 - 5 - 5. The STB key will blink twice.
5. Press
AUX. The AUX key will blink 3 times to indicate success in programming.
Note: To return to controlling the volume via the TV, press
TV in step 5. If you want to control the volume through any device (by pressing a Device Key, then a Volume Key), press OK in step 5. This will also control the volume of your STB in STB mode.