Cannot control receiver from remote
Does the power button on either remote work? If nothing works, we'll try to see if your remotes are actually functioning.
Get some electronic device which can view a live image on a screen. A cell phone camera, digital camera, digital video camera, and (I think) even a web-cam will work. If you're using a digital (still) camera, you don't need to take a picture as long as you see a live image on the screen. Take your remotes and find the LED on the front end. There may be one or two. (If there's two, one actually isn't an LED, but that's not too important.) Point the front of the remote at the camera (LED's facing the camera), and press buttons. You should see the LED's light up in the live image. While these LED's normally produce light which the human eye can't see, digital image sensors can, and they change this invisible light to light we can see, on the screen. (Cool right?) So, if your remotes are working then you'll see the LED light up on the display. (To make sure your camera is actually working as I am suggesting here, find a remote which you know does work and try it.)
If the LED's are not lighting up, (and you've verified that your live digital video device can "see" these type of LED's), then your remotes are dead. Yes, it's unlikely that both your original and universal remotes are both dead - but it's possible. If the LED's are lighting up then you have one of two problems. One: the remote is not correctly paired with your system, and two: the IR receiver in your system is pooched. Let's look at the fixes for these.
Not correctly paired. Your universal remote has some sort of programming or learning function. Try programming it again, or programming it to a slightly different model of receiver and see if it works. If you've "learned" it from your original remote and it's not working, then maybe your original remote isn't paired correctly with your unit. If this is the case, contact either the place you bought it, or the manufacturer and tell them what's happened. You can't change how the original remote "talks" to your system.
The IR receiver in your system is pooched. Contact the place you purchased the unit, or the manufacturer, and have SA-HT930 system serviced. If you're handy with electronics you might get lucky and find something burnt out inside, but in my experience this will be %0.25 successful. If the rest of your system works perfectly, I wouldn't crack open the case - it's not worth your time.