Unscrew the BVP-4 and look inside. The fuse should be obvious. I'd take a photo of mine, but it's in use at the moment.
Rather than type out what I have, I just took a quick snapshot with my P&S camera. It's a bit blurry, but you can still read it okay.
radioshack-bvp4-fuses.jpg
If the unit powers on, it should be okay. However, weak power may cause odd errors like this on electronics, so it might be worth the quick check.
I don't want to jump to the conclusion that the unit is dead.
If this on a power converter of any kind. What country are you in? Is it being fed a PAL or NTSC signal?