Alternate AC Adaptor for NES?

[FABombjoy]

If you've tried several adapters and none of them work, assuming that they're reasonably close to 9v->12v @ 850mA, then you have something wrong internal to the NES. Sounds like something in the rectification / regulation stage, like a bad diode bridge, main filter cap, or 7805 regulator.

You mentioned that you tried a few DC supplies - are they all of the same polarity? If so, try to find one of the opposite polarity and see if it makes a difference.

[wiggyx]

Sorry to dig this thread out of its grave, but I didn't want to open a new one about it. I'm having problems with my NES ac adapter as well (it's already an alternative, 12v one): the little red led dims in and out, and the console won't work. Assuming it's a problem with the adapter, I tried to dig out some old DC ones (following the instructions I read here), and none of them worked. What could I be doing wrong here?

Do you have a multimeter? That's one way to assure that the adapter is actually the problem before you spend more money on another

[thom_m]

Do you have a multimeter? That's one way to assure that the adapter is actually the problem before you spend more money on another

No, I don't - and I wouldn't know hot to use it if I had one avaiable! Also, I really doubt that any game technician in my town has any experience with the NES, so I really hope it's not an internal problem, like FABombjoy also mentioned earlier...