Trash find:Sony Wega 20"

[Jon A.]

I suppose SVM was a gimmick that became feasible once overall build quality had fallen far enough. Couldn't have cost much to implement to begin with.

[zenith2134]

Well Jon, I do agree that it is a gimmick. However, from what I've read on the subject, there was a fair amount of R&D involved with SVM. It couldn't have been cheap to implement at first. By the 2000s, of course, it was more commonplace both in direct-view and in rear-projection TVs. Many sets I've seen with it, contain a 'staggered daughterboard' right behind the video output board on the tube. On some Toshibas from the early 00s, I would cut the feedback wire from this board, as it wasn't even defeatable via service mode. I am not sure which sets were the first to use a scanning velocity controller. If I had to guess, I bet Sony was the first. Anyone know for sure?

[andy]

...

[zenith2134]

What I should gave typed, is that the CRTs were poor, as others have noted. Like I said, my '04-ish 27" Wega had the classic shutting-down issue which turned out to be a hard short in the CRT. I really have no gripes about the build quality except for the cheapish cabinet with no handles, just like many modern TVs.

This one has a low/medium/high setting available for the SVM. I put up a crpsshatch pattern from my Leader LCG-396 ntsc unit and the SVM affects that pattern the most, out of all the patterns I tried. Text is also blatanly affected.

I got out one of my Sony remotes and did the ol' DISPLAY - 5 - Volume Up - Power for the service mode, and changed a handful of parameters, until my black level and contrast gave a nice usable range via customer controls, and the red push was toned down enough for my liking.

Will post more pics of it later if anyone cares

[zeno]

Originally Posted by zenith2134

Well Jon, I do agree that it is a gimmick. However, from what I've read on the subject, there was a fair amount of R&D involved with SVM. It couldn't have been cheap to implement at first. By the 2000s, of course, it was more commonplace both in direct-view and in rear-projection TVs. Many sets I've seen with it, contain a 'staggered daughterboard' right behind the video output board on the tube. On some Toshibas from the early 00s, I would cut the feedback wire from this board, as it wasn't even defeatable via service mode. I am not sure which sets were the first to use a scanning velocity controller. If I had to guess, I bet Sony was the first. Anyone know for sure?

I was at a seminar when it was introed but dont remember who !
I think it was Sylvania ?

73 Zeno