Help using TBC

[julioc]

I have just bought a TBC (Av tools CTB 530-TR) .
I need to capture (digitize) 100 old S-VHS tapes with timing errors, but I am newby using a TBC. Until now I have always work with Betacam or digital video sources.
I have connected the TBC between my S-VHS player and the capture workstation, but the vertical lines continue to look a little wavy.
Please, has the TBC its own internal sync generator, or it is always neccesary to connect an external sync source (genlock)?
Can I do anything in order to fix this "wavy" vertical lines? Maybe adjusting horizontal or vertical positioning with Proc Amp controls?
Excuse me for my silly questions. I am newbye, but it is an important work for me.
Thanks in advance.

Julio C. Castaño
Spain.

[2Bdecided]

They're not silly questions.

Most external TBCs seem to correct "slow" time base errors, but leave "fast" time base errors quite uncorrected. So vertical lines still wobble.

The TBCs built into high end S-VHS decks will correct fast time base errors much better. It seems the TBCs built into _some_ DVD recorders, and _some_ of the miniDV camcorders with analogue input, can also correct such errors well.

Check out the restoration and capturing forums at http://forum.videohelp.com/ .

Cheers,
David.