I just bought a Loewe 9383 about 2 weeks ago and I believe you can. I haven't tested it yet, however. There is a 15-pin VGA port in the back. Supposedly the Key Digital KD-CTCA3 box will allow you to use that as another component input since the thing only has one.
Here's the kicker, though. I'm waiting right now for a repair guy. It's got some kind of blue discoloration in the upper left corner. I'll let you know how this turns-out.