EvilAsh wrote:One other problem I'm running into is my SNES had a very feint thick translucent white line straight down the center of the screen. It's barely noticeable. I figures it was my SCART cable but when I switched to S-Video cables the line is even more noticeable. I'm wondering if it's my TV or SNES. I haven't noticed this line with any other consoles.
Thanks!
The white vertical bar is actually a well-known and fairly well-documented problem with almost all SNES motherboard revisions. It's caused by spikes and drops in power draw in the system, except in the 1CHIP and Mini SNES models.
Thankfully, it is fixable. There are two options to fixing the problem:
1) You can bypass the internal RGB signal using the famed N64 THS7314-based amp. This, in my opinion, produces a slightly worse video signal, but eliminates the bar completely.
2) You can add two capacitors (RECOMMENDED). On the 7805 regulator, attach the + leg of a polarized capacitor with a value of at least 220µf (past 470µf is not helpful, and can actually cause glitches thanks to power draw) to the 'O', or 'output' leg, and attach the - leg to 'G' or 'ground'. Then add another cap (same value range: 220µf-470µf) on the video encoder. If you have an S-ENC, S-ENC B, BA6592F, or BA6594AF encoder, the - leg must attach to leg 2, and the + leg must attach to leg 5. However, if you have the BA6595F, the BA6596F, the S-RGB, or S-RGB A chip, then the - leg of the cap must be attached to leg 16, and the + leg must go on pin 19. (Note that it is okay to attach the legs of the cap to some wire and have the cap out of the way, but I wouldn't recommend having wire longer than 4" on the cap legs. In this application, I don't think it will actually hurt anything, but it's a good habit to keep all wiring short.)
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