CDM-630 as a TBC? Composite-only timebase corrector?

[bhs00]

I purchased a cdm-630 from eBay yesterday and it says it has a built in time based corrector. In fact it looks a lot like a avt-8710, but it doesn't have s-video. It is marketed as a device to switch between NTSC and PAL. Does anyone know about this unit? Will it work for TBC purposes?

[volksjager]

if it doesnt have s-video i wouldnt even bother with it.

[bhs00]

Well it was only $15 shipped, so I figured it was worth that just to play with.

[Cyclone82]

Here is the info so people know what you are talking about
http://www.tvone.com/cdm-630.shtml

[lordsmurf]

The CDM-630 is an interesting yet unpopular device.

In hardware, it converts PAL to NTSC, and NTSC to PAL.
And then it will pass NTSC to NTSC and PAL to PAL.

As far as the TBC goes, there's a catch. It ONLY works on conversion, not passing native. So it cannot be used a general TBC. It's a direct pass, bypassing the TBC altogether. I've seen devices like this before. It's sort of like how S-VHS VCRs combine DNR with TBC, and you cannot shut off the DNR. Here it's paired with signal conversion, or not at all.

If you want a conversion box, I've see worse. It's mostly good for lazy conversion, where you don't want to mess with the quality software conversion methods (Avisynth, audio editors for 4% adjustment, etc).