Hi Ted.
Yes, most recievers dont convert from one video type to another.
I strongly suggest you standardize on SVideo for all inputs and for the monitor out.
A receiver that converts SVideo to Composite is actually down-converting the signal. You dont want to do this if your television takes SVideo.
"Home Theater" magazine compared all 3 video connection types on a "Reference" 50" RPTV and concluded:
- Composite - baseline quality
- SVideo - 20% improvement over Composite
- Component - 25% improvement over composite
From a good source, SVideo will give you a better picture.
If you have 1 old device that only outputs composite, there is a cheap $20 Composite-to-SVideo converter you can get at Radio Shack.
Hope this helps.