More Than One Version of The SNES Model 1?

[izarate]

Is this "vertical band" problem only when using s-video? Will composite video not have this artifact on any revision of the SNES?

The line is present in both composite and S-Video. RGB seems to not produce it. As far as I can tell, it seems to be a degenerative issue (failing capacitors maybe?) I thought that the S-RGB encoder chips didn't produce the line but others are reporting that it does so maybe it's just that my SNES 2 hasn't shown it yet.

What is the native output of the SNES? For example, the NES video chip outputs composite. I was under the impression that the SNES video chip outputs RGB, then the video encoder chip(s) convert it to the other types if needed.

The ROHM encoders take RGB so I'd say that it produces RGB. I'm not entirely sure, tought.

Is there any way to know if you have a particular revision based on external markings? I know the difference between the "new" and "old" case (printed vs molded "eject", etc), but if there are several hardware revisions, is there any indication on the outside? Maybe something as simple as a certain serial number range?

There are a few things that can help you identify groups of PCB versions:


SHVCs:
- FCC information is in a label underneath the console.
- Molded "EJECT"
- Cartridge connector edges are silver (open the cartridge slot cover and look through the little slits on the edge of the plastic around the connector)
Note: All silver connectors can be replaced.

GPMs:
- FCC information is molded on the underside of the console
- Printed "EJECT"
- Small grey label close to the power switch
- Cartridge connector edges are silver (open the cartridge slot cover and look through the little slits on the edge of the plastic around the connector)
Note: All silver connectors can be replaced.

RGBs, 1CHIPs:
- FCC information is molded on the underside of the console
- Printed "EJECT"
- Small grey label close to the power switch
- Cartridge connector edges are black (open the cartridge slot cover and look through the little slits on the edge of the plastic around the connector)
Note: Black edged connectors are fixed and cannot be replaced.