No light in front panel

Although we cannot answer why you bought it at the first place, we can try to help you solve if you mention the brand, make, model and the symptom better.
Where do you see the dots and flashing lights ?
Is there pattern ?
I mean when does it happen ? as soon as you power on ?
Most flashing LED (red or green) on the front panel are Error codes. So observe, count and mention the pattern here.

Hi.please check on your device control panel if you have power control key push it ,if not please see behind the device it may be there

Hi, You have a Bose Home Theater System hooked up to your television and I'm wondering if you're controlling the volume through the Bose Home Theater System or the television because both have a volume control and if you have the television volume turned down and you're using the Bose Home Theater System for volume or visa-versa then you're not going to get a decent sound. I hope you know what I mean...... CHEERS..

Make sure you turn on the surround sound located on your remote, should be second button from the bottom all the way over on the right.

contacted sound matters directly getting a replacement....

it could be you need to put it in surround mode

change the batterys

try to download the user manual here http://www.samsung.com/us/support/download/supportDown.do?group=audiovideo&group_cd=&type=hometheater&type_cd=03030000&subtype=hometheatersystems&subtype_cd=03030100&model_nm=HT-Q70&dType=D&mType=&model_cd=&menu=download&menuLink=/support/download/supportDown.do&prd_ia_cd=03030100&disp_nm=HT-Q70&isEqualsY= let us know. thanks.

i have the same problem, has anyone found a solution?

sounds like you may have a dodgy scart lead.check that none of the pins are loose/damaged. Also check the sound settings on the tv, it may have reset itself to the default sound setting. Or it might just be the audio settings on your dvd player have been adjusted,almost all dvd movies have there own audio adjustments.