Dub TBC

Hello to all here,
i'm new member and this is my first post.

I would like a solution about U-matic dubs,
I have a vo-9600 u-matic recorder and i wanna copy some videos to dvd.
My dvd recorder is a pioneer lx70 (external - standalone)
Some tapes need strong filters like dnr or chroma nr... also need TBC
For this reason i bought a snell & wilcox TBS24
It can denoise by default and can adjust saturation,brightness and more..
But when i use the tbs24 i can see a problem at the top of the picture,
it's like all the top going to left for some unknown reason !
So, what is wrong ?? Do i have to sync u-matic with tbs and how ?
I don't about sync :(

Thanks in advance