SNES No Video Model 1

[MarioMania]

I have a 1st Gen SNES Non 1Chip

There's No Video at all, I cleaned it, No Dice..Turns on just a Black Screen

I took it all apart, What can it be , Witch Chip is the one that has the video on it?

Sorry no Pics, It's in Storage

[Skawo]

SNES black screens can be due to a multitude of things.
Most often, though, it's the CPU that fails, and it's generally not possible to find a replacement for it.

Check that you are actually getting a black screen though - and not "no signal". No signal can mean the capacitors have failed or that there's a break in some trace going to the video out.

[P]

The typical dirty connector problem with NES games also gives a black screen on SNES.
I'd try multiple games known to work in other SNES units.

[Pikkon]

Which model exactly do you have?

Do you have a flash cart,if so I would run the burn in test cart if your snes can boot it.

[dongbeijockey]

It sounds like the famous chip problem if it's a CPU01 or CPU02 first generation board....However, I like to go through a basic to more in-depth check list. Something that might seem complicated might just be a simple problem to repair. NOTE: This is what I would do if I were in the situation. Do at your own risk etc.

Basics
1) Check the AV cable (try another one if you have it)
2) Check with another game (could be a game issue)
3) Clean the test game cart pins with IPA and cotton bud/Q-tip (I use 99% IPA)
4）Clean the SNES cart slot with IPA (I do this with a new soft toothbrush)
5) Check the video port is clean and clear of dirt, dust,
6) Try the RF (if possible and if you don't have another AV cable)
7) Check it on another TV (if possible)
Give it a smell. Does it have a burning smell? Is the unit feeling really hot?

After opening it up
1) look around the board at all components (are they all there, do they look ok and solidly attached to the board, how are the solder connections? how are the AV connection solder points?)
2) Really look at the capacitors for leakage/swelling (both surface and thru-hole)
3) Check for board corrosion especially around chip pins.Is the board ok? look at traces.
4) look at all the chip pins and see if they are sold (i like to take a clean DRY toothpick and VERY gently push on the pins to see of they are all solid and don't move)

After all that if no dice then I would move onto cap replacing...Chip replacing the more complicated stuff

Good luck. I hope you can easily fix the problem.

[Skawo]

The capacitors can't really be the reason behind getting a black screen. You'd get distorted video/music, but you would get *something*.