Schematic needed for Nintendo 101. This is the top load version of the original NES. The schematic may be the same for both, so would like to obtain either. Unit does not work, the 5 volt regulator gets very hot so seems to be a short or low resistance somewhere. It has a double sided board, and hard to trace the path from the regulator.
regulator.
Schematics are probably not available to anyone but an authorized service center. 5v will go to the power pin of each IC, that's normally the upper-left corner. Check for shorted capacitors, particularly if any tantalum units are used, a schematic will not be very helpful, there's no getting around having to remove parts and test them.
Hey there:
I don't know if this helps you or not, since this is for the original NES, but a schematic can be purchased here:
I am assuming that these schematics are simply reverse-engineered, and I cannot vouch for their quality. I have purchased other things (mostly VCR and microwave parts) from this company, however, and I've not had any trouble.
Just curious: what kind of symptoms are you having with the system? Are you seeing a power indicator at all?
Hope it helps,
-Darrick
Quite a few people have made hardware and software emulators of the NES line. I'm sure that there are schematics floating around somewhere. Try the emulator community if you haven't found anything yet.
In the meantime, have you checked the cartridge socket for bent pins?
Thanks for replies, sorry I'm late getting back, been tied up on other things. Guess I'm going to have to forget about repairing this, with the double sided board would just about HAVE to have one of the expensive soldering stations such as Pace, that sucks the solder out after it's melted. I'll probably just put it back on ebay and sell as is, maybe get some of the money back I paid for it. I was taking a chance that it would be something simple to fix, such as problems with the AC adapter, or the TV connection adapter (forget proper name for it), but luck wasn't with me! I replaced the
regulator.
Hey there:
I don't know if this helps you or not, since this is for the original NES, but a schematic can be purchased here:
I am assuming that these schematics are simply reverse-engineered, and I cannot vouch for their quality. I have purchased other things (mostly VCR and microwave parts) from this company, however, and I've not had any trouble.
Just curious: what kind of symptoms are you having with the system? Are you seeing a power indicator at all?
Hope it helps,
-Darrick
SMT soldering/desoldering doesn't necessarily have to be an expensive proposition. If you have nothing to lose, consider CHIP-QUIK; I was able to repair a surface-mounted CF socket on my digital camera with it.
Sorry to hear about your troubles, though. I understand that the top-loading model NES is rather hard to come by, with a commensurately higher resale value. I'm also told that the cartridge connector is by far much more reliable than that of the original, front-loading model.
Good luck,
-Darrick
If you don't have an expensive desolderer, and you are removing a dead ic, an easy and cheap way to remove old chips is to simply cut all of the leads off. Then you can remove the package and take the leads out one at a time. Then you can use a braid to remove the solder from all of the through holes.
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