Comment on My trusty 2600 fire button issues
bridgeenjoyer@sh.itjust.works 1 day agoGetting to that! I have a multimeter and an o scope. I just need to know the test points which I think now I do. Thanks immensely for the help! Hoping JTS that green cap and not the 4050 chip…
Its just odd to me that 6 months ago it wormed perfect when i put it in the box. That’s what makes me think the cap finally gave out.
Also interesting, when using paddle controllers the fire button works fine. They use a different pin I think since those are 2 controllers on 1 port.
partial_accumen@lemmy.world 1 day ago
That green cap I think is a mylar and will cost you maybe 5 cents at retail (and .00001 cents in bulk).
That 4050 is also dirt cheap. Maybe 50 cents to $1 USD at retail. You’ll pay more in shipping costs than for the part. Today’s CMOS ICs are a bit more robust against static discharge than those made in the 1980s, but don’t risk it when you do the replacement. Make sure you use a grounding wrist strap or the like when you desolder the old 4050 and put in the new 4050, partially to protect the 4050 but really to protect that CPU which will probably cost you closer to $11-$20 (just a guess) to replace if it dies.