⟐ Commented October 12, 2023 at 12:48 MST

⟐ Edited by author March 26, 2023 at 12:49 MST

⟐ Commented February 22, 2023 at 10:59 MST

Power cable works fine on a back-up snes, swapping the power switch didn't fix this issue, and swapping the controller port still didn't light up. My best guess is that the back of the power switch might have made contact with pins on the PPU1 and/or PPU2. I don't currently have a circuit tester to see if the fuse and/or chips are still working... how doomed is this snes? Based on this, is it completely toast or is there some fix I'm overthinking?

⟐ Commented October 06, 2022 at 13:14 MST

⟐ Commented September 05, 2022 at 19:03 MST

When I turn SNES with a game cartridge in, super Mario, I here the first second of sound and the screen stays black,. Sometimes after playing with cartridge for awhile I can get it to go from black to a white screen.

Is it perhaps my tv that doesn't support the device ? I have tried with 3 seperate tv. One of which said unsupported.

I've tried blowing cartridge out, using different ones and inserting and removing it about 20 times to try and knock dust free. But now I'm at a loss.

Any help would be greatly appreciated

I’m a total beginner when it comes to soldering/circuit stuff. I’ve successfully replaced the batteries in my SNES carts without a hitch, but that’s basically it.

For a while my SNES has been having black and white screen issues. Reading about it online, I discovered this could be related to the trimmer for the crystal oscillator being out of sync. After attempting to adjust this multiple times, I found I was able to bring the colour back, but only for brief minutes or seconds before it went back to the monochrome output.

After doing further research, I was led to believe that replacing the crystal itself could fix my issues, as the problem didn’t seem to be coming from the trimmer. I ordered a replacement 21.47727 MHz crystal to solder in place of the original crystal.

However, I believe that during the process of installation I must have done something incorrectly, as there was no signal at all after putting the new crystal in. I was also not able to easily create joints around the pin holes (these have since been removed). I believe that in the process I damaged the traces and components around the area the crystal is located, as you can see in the image below:

My question is whether this is salvageable at all without a ton of work. I’m willing to put some effort into repairing this if I have a bit of guidance in the right direction. But if it’s going to be too big of a task for a beginner, it might just be easier for me to buy another SNES outright.

Thanks in advance.

⟐ Commented June 05, 2021 at 0:52 MST

⟐ Edited by author May 07, 2021 at 15:09 MST

⟐ Commented March 09, 2021 at 22:42 MST

I have a first generation SNES (1991 copyright on mother board, detachable sound card, etc).

My TV is a V-series Vizio 4K UHD Smartcast (65”).

Whenever I connect my SNES or N64 to my TV, I get the classic “No Signal” screen, and little blips of sound occasionally. Sometimes the “No Signal” screen turns black due to some type of video signal. I know the component ports work, my GameCube and Wii both work great with this TV.

My assumption is that my SNES and N64 in this case, are just putting out too weak of a signal for the TV to pick them up. Would a component to HDMI adapter help this? Considering there’s auxiliary power needed for the adapter to work.

I recently replaced the fuse on my SNES, but I know it works well because I’ve tested it on multiple TV’s and multiple sets of cables.

Thanks!

⟐ Commented February 11, 2021 at 7:12 MST

I don’t see any corrosion on the board anywhere, nor do I see any issues with the chip slot. I’m not even sure where to do a continuity to test various chips/connections as I’m not sure where this issue could be.

The top image is from Mario Paint, the bottom is from Revolution x. The sound from both appears to be ok.

⟐ Edited by author January 14, 2021 at 20:32 MST

Can live with RF for now but really want the multi out to work. Any idea what would cause it?

I’ve even tried cleaning the contacts on the port itself with rubbing alcohol but it makes no difference.

⟐ Commented May 28, 2020 at 8:36 MST

But when I try to play something this happens:

In the video I didn't put a game, but the same thing happens if I do.

I am really lost at what may be happening so any help is appreciated.

edit: I figured it out, the AC port is broken and I was connecting to just a couple of metal pieces that are still there. Hope connecting it there didnt do any damage.

Thanks!

⟐ Edited by author April 14, 2020 at 10:47 MST