System dies when SNES power hooked up

Kurt_ · Post by **Kurt_** » Tue Sep 19, 2006 7:10 am

Same post, different topic, only one useless response.

I wanted to do some testing. So I disconnected the SNES +5V so if I fried something I would mess up only the screen which I believed to be already messed up and not the super nintendo.

However the system (Screen batteries gauge and such) works when the SNES +5Vin is disconnected.

All I did recently (that I haven't undid) was move the controller port. I hooked up pins 1-4 and 7, skipping the 2 on each side which are ground, the same as 7. Should I hook these up or will it make no difference?

No sodler or anyhting is on the board. THe protection circuit keeps the system from frying.

Is there something bridges to ground or something?

What would cause the system to engage the protection circuit when the SNES is hooked up? And it's not overvoltage/current or anything of the sort. It works just fine except for the fact that it currently doesn't. If that makes sense.

atari2600a · Post by **atari2600a** » Tue Sep 19, 2006 10:04 am

Maybe you're putting too high a voltage into them. what are you running things off of?

Kurt_ · Post by **Kurt_** » Wed Sep 20, 2006 9:37 am

Nevermind. It's a short. Any ideas where I should start looking? I can't find it.

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Wed Sep 20, 2006 10:35 am

the little black box like thing soldered next to the big white fuse, remove that and put 5 volts directly into both spot were the 7805 was no where elseand just wire the ground up to the grounding strips

Kurt_ · Post by **Kurt_** » Thu Sep 21, 2006 5:41 am

Are you sure this will do it? The rectifier, althuogh not use anymore, hardly seems harmful.

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Thu Sep 21, 2006 8:59 am

it helped me out it was bridging my + and - leads

Kurt_ · Post by **Kurt_** » Thu Sep 21, 2006 9:54 am

Well somehow I got it working for a few seconds. The ohms went from 0.7 (shorted, my multimeter sucks) to about 2-3. It worked then. However it didn't last long. The controller port is COMPLETELY removed, and it still doesn't do much. Would disconnecting/reconnecting everything do anything?

Kurt_ · Post by **Kurt_** » Fri Sep 22, 2006 8:37 am

BUMP!

When the system DOES work, mario skips to the file select menu and you can't do anything. If the problems are related, where would I look on the board where the file select whatever happens.

Turbo Tax 1.0 · Post by **Turbo Tax 1.0** » Fri Sep 22, 2006 12:55 pm

is this running off wall power?

Kurt_ · Post by **Kurt_** » Sat Sep 23, 2006 12:57 pm

No. Batteries. Fully charged.