There are actually at least 4 versions of the TBC-3000.
- Some are PAL only, others NTSC only.
- Some NTSC swap to PAL, but the PAL is awful. Some PAL do NTSC, but the NTSc is awful.
- Some have quirks when swapped.
- Some swap fine.
Not all have the DIP, only certain gen models. (FYI, if you're looking at that $3k scratched model of
eBay, probably not it. The seller is a goober that wouldn't know a TBC from a toaster. No idea how these units should function, nor how to test the functionality.)
The proc amp also differed over the years.
This is one of those items that I've written about for decades, and in that time units changed, more info brought to light one existing.