No video on Sharp Aquos, using Bose Lifestyle

[msgtester]

I have a Sharp Aquos LC42D62U. It's currently connected to:
- Dish DVR 510
- Wii
- Bose Lifestyle 38 with VS-2 Video Enhancer
- ipod Dock

I can:
- watch TV and the sound is coming through the Bose
- listen to the radio playing through the Bose
- play a CD through the Bose

However, when I attempt to play the Wii or watch a DVD, I can hear the sound, but not see the picture.

I've tried hooking the Video out on the VS-2 to Input 1 on the TV and then I bought an HDMI cable and hooked that cable from the VS-2 to Input 6.
At this point I think the problem has to be with some setting on the TV, but I can't figure it out. It's been a week and a half of trying a lot of configurations, going through the manuals and playing with every TV setting I can find.

I'm stumped and frustrated. Help!

[Adrian_F]

I have an earlier model 32" Sharp and have had a similar problem if the scarts are set to accept a different input to that which you are providing. If the menus are similar, then make sure you select the appropriate input and navigate to...

Menu-Option-Input Select

and you may find some help there.

[msgtester]

Thanks Adrian. I tried that. Still no luck.