@rey @typhlosion cutting the pin is probably safer and easier; when you need to remove a DIP IC and you don't need it to remain functional that's usually the best way to do it is just cut all the pins then desolder them one by one
you do need the 10NES to remain functional but not this one pin; I think there's other stuff that stops the system working if the 10NES is removed completely. i believe the pin you remove is just the one that connects to the reset signal
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@rey @typhlosion could be an impetus for you to get some side cutters though! you'd certainly have more use for them outside this project than kassy, who i don't know if she plans to do much hardware work, though i don't want to put words in her mouth of course
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@Felthry @rey i would love to get more into this stuff! though i dont really have a workspace for hardware stuff yet.
i did manage to mutilate pin 4 all the way off the 10nes chip somehow. pic attached (mild hardware gore i guess??). um. hopefully that will work??? im honestly kind of really scared, lmao.
@typhlosion @rey Looks like you've done the job there honestly! it's very hard to damage the chip inside by doing anything to the pins on the outside
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@typhlosion @rey Nope! That is indeed pin 4, and the only possible knock-on effect would be if some metal fragments bridge other pins; just give it a good brushing or even a spray from a can duster to get rid of any of those
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@Felthry @rey update: when i put my Golf cartridge in, it boots to a solid yellow screen rather than doing a reset loop. which... is progress! that tells me theres something else wrong, probably with the cartridge.
when i tried Lizard before i snipped the pin, it showed the first frame of the title screen in the reset loop, which tells me that that game was probably on a good cartridge but the lockout chip was fritzing. the fact that Golf shows a solid color tells me maybe its pins are bad
@typhlosion @rey progress! try Lizard in it again maybe? That sounds like the closest thing to a known good cartridge you have
It's also possible the cartridge connector is too oxidized to make good contact; that's easy enough to clean. You can just spray contact cleaner in there and that usually helps, but you can also get these purpose-made things like this https://www.1upcard.com/products/the-1upcard-nes-console-and-game-cleaner-bundle?variant=20327843398
it's just an NES cartridge with a mild abrasive instead of electrical contacts, so it cleans off the oxide
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@Felthry @rey yeah, i'll try lizard in it next. that one was completely unused and hadn't even been taken out of the box before i tried it last night, so if that one isn't good it's definitely not due to usage
i did a quick visual inspection of the pin connector on the NES side when i had everything off, and it didn't look corroded (i think someone had replaced it before i got it) which is why i think it's an issue with the Golf cartridge (perhaps corrosion on *those* pins)
@typhlosion @rey yeah there could be corrosion on the cartridge pins too
if someone's replaced the cartridge connector on the NES side that doesn't necessarily mean it's good, for something like this you want pretty good gold plating on the contacts and nintendo used a pretty thin gold plating (which rubbed off over many cartridge insertions) and some of the replacements don't even use gold at all (good ones would probably be like, 30-50 μ" gold and yes that's a very cursed unit)
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@typhlosion @rey (it's probably fine though)
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@Felthry @rey success!! the music plays, all the controls work and everything. there are those wavy striations on the video output but im assuming those are just an artifact of some kind of something relating to using the NES with a modern television, or such. doesn't bother me either way
cc @rainwarrior thank you for your cool game that helped me test my NES repair job
@typhlosion @rey @rainwarrior excellent! glad it worked
i could go into what the striations are if you're interested, but you're correct that it's a consequence of using it with a modern tv
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@Felthry @rey @rainwarrior isn't it something to do with the video not being precisely 60Hz? i am indeed interested
@typhlosion @rey yeah i was going to do that, dunno if rey wants to be untagged too
it might be that? more likely to be artefacts of either the RF or composite output, which both lose some information in the process of modulating stuff
i'm assuming your NES hasn't been modded to have a component or s-video output here, if it has it's something else
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@typhlosion @rey that's not a mod, some later model NESes had that
that's composite output, where the color and intensity information are both sent over the same wire
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@typhlosion @rey i mean, it *could* be a mod if it's an early model NES, the kind that only had RF output, but I dunno why you'd go to the trouble of modding it and not use component or rgb
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@typhlosion @rey If you care about compliance to FCC regulations,.... maybe?
if you don't, no
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@typhlosion @rey your radio picks up a bit more static
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i think im gonna leave it off, and then maybe see if i can get a transparent plastic casemod for the nes (at least the top cover), because i think that would look cool and also be a reminder to myself that i have in fact user-serviced it in some rudimentary way (this is a huge triumph for me)
@typhlosion @rey well congratulations! your first Electronics Thing
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@typhlosion @rey Make sure you figure out what model your NES is before getting the casemod, the case might have different mounting points and holes for connectors between models
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@typhlosion @rey aw, unfortunate
could be something wrong with the cartridge itself other than just the contacts
fortunately it's just golf, I suppose? Not exactly a rare game, checking ebay it looks like it goes for $5-6 plus another $5-6 in shipping
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@typhlosion @rey huh, that's a bit weird
i'd have to think on what that could be
could you get some photos of the inside of the nes?
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@typhlosion @rey i wonder if there's a common feature that golf, tmnt, and micro mages use that none of the other ones do
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@Felthry @rey i foolishly assumed it wasn't stochastic. in other words, i tried micro mages again and it worked this time; i even tried golf and it worked after hitting the reset button. tmnt i couldn't get to work at all but so it be
i guess its just a matter of making sure the connection with the pins is good
@typhlosion @rey ah, that probably *is* a problem with dirty contacts then, and the ethanol wasn't quite enough for it
i dunno if deoxit is good on the sorts of plastics used in the NES but might be worth a look? or just some kind of purpose-made contact cleaner like MG409, but deoxit you can probably get at home depot or something, MG409 you'd have to order
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@typhlosion @rey it could be a combination of both, and (back to the idea of a common feature) it's entirely possible that one of the pins that's particularly corroded isn't used by the carts that work reliably (we don't know if there *are* any such pins on the nes cartridge connector, but there could be)
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@Felthry @rey i also have teenage mutant ninja turtles for the nes (the famously hard one), which i had never tried playing before, and that one gives me the same problem. the blank screen is even the same yellow color, oddly
... same result for Micro Mages, even... that one should definitely be working, because it's also a new game that was unused before i started testing it
is Lizard the only game i have that my NES likes????