Hi people! Ofesad here from Argentina!
Recently I got this transcoder, got it for 10usd, tested the composite output and works fine.
Brand it's "TVX television Experts" and in the back as a "made in USA" stamp.
If feature bars generator, Svideo in/out, transcode and a procamp.
[Attachment 58387 - Click to enlarge]
I tested the composite output and it works like a charm, however the Svideo seems to have some issues.
At the beginning I has having issues (noise) in the whites.
[Attachment 58388 - Click to enlarge]
(mostly when using a 25ft svideo cable)
This was solved by increasing a trim pot in the main board, probably gain?
However the issue that remains is in the top some sort of flickering. The same happens on any cable.
I already changed the only electrolitic cap on the main board, didnt have any effect.
Here some pics to see it:
[Attachment 58389 - Click to enlarge]
[Attachment 58390 - Click to enlarge]
[Attachment 58391 - Click to enlarge]
[Attachment 58392 - Click to enlarge]
[Attachment 58393 - Click to enlarge]
BTW some IC's have been sanded. The old practices so you cant know what they are.
Capture was made with a brand new Hauppauge USB-Live2 using Virtualdub2.
Any ideas are welcome!
Also, if anyone had or has this transcoder and has the manual, would be kind enough to scan it and upload it? I haven't found any information on this device whatsoever.
Thank you for reading!.
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Try'd different ones and the problem remains.
I was thinking to change the svideo connector on the transcoder... I already clean it with isopropyl and contact cleaner. No difference.
Maybe the caps on the psu? but it delivers 4.99 ~ 4.98v quite stable.