I messed up somehow. I don't really know how though or if it's just timing and it would have given up anyway.
(I think someone else have replaced the caps in it before me because the legs are really long, long enough to touch legs on some of the chips if bent.)
This is what I did.
So I bought a pretty cheap nes, that was working. I tried it out, it had some problems with the Honeybee adapter, the game got recognized but just blinked, so I region modded it(the wire version, first time I try that one but it worked) so after that the game worked with steady picture.
I then added the audio channel resistor mod and it was working fine.
I added the stereo monomix mod to the resistors R4 and R3, not directly to the cpu, but for some reason sound stopped working but I still had picture(I'm thinking this is where something might have gone wrong).
I've done this mod plenty of times, never had any issue before. So I started checking over the stereo mod and one of the rca jacks had a bit of a bad solder joint so I re-did that one. This however shouldn't have done any difference but when I pushed it on again the screen turned gray.
I couldn't get the game to show up even trying with and without the cartridge bay and wiggling the game.
I figured maybe it's a dirty connector and me messing around with it have made it lose contact.
So I cleaned and boiled the 72pin connector and cleaned the really dirty connectors on the board with copper polish and isopropanol. After the connector had dried around 12 hours later, I put it back and still a gray screen. So I replaced the 72 pin connector and tried two other known working ones. Still gray.
I let the NES be on for 10-20 minutes with gray screen and it turned off on it's own.
When turning it back on power got back again.
After a while the LED looked like it had a bad connection or was going to break, then it stopped, so I measured power and it still had power.
I replaced the power regulator.
Didn't work so I removed all mods.
I don't know where to go from here. Right now the NES is blinking until I guess it gets a good connection with a game, then it just turn solid gray constantly. After around 2-5 minutes it turn off, maybe overheating?
(I think someone else have replaced the caps in it before me because the legs are really long, long enough to touch legs on some of the chips if bent.)
This is what I did.
So I bought a pretty cheap nes, that was working. I tried it out, it had some problems with the Honeybee adapter, the game got recognized but just blinked, so I region modded it(the wire version, first time I try that one but it worked) so after that the game worked with steady picture.
I then added the audio channel resistor mod and it was working fine.
I added the stereo monomix mod to the resistors R4 and R3, not directly to the cpu, but for some reason sound stopped working but I still had picture(I'm thinking this is where something might have gone wrong).
I've done this mod plenty of times, never had any issue before. So I started checking over the stereo mod and one of the rca jacks had a bit of a bad solder joint so I re-did that one. This however shouldn't have done any difference but when I pushed it on again the screen turned gray.
I couldn't get the game to show up even trying with and without the cartridge bay and wiggling the game.
I figured maybe it's a dirty connector and me messing around with it have made it lose contact.
So I cleaned and boiled the 72pin connector and cleaned the really dirty connectors on the board with copper polish and isopropanol. After the connector had dried around 12 hours later, I put it back and still a gray screen. So I replaced the 72 pin connector and tried two other known working ones. Still gray.
I let the NES be on for 10-20 minutes with gray screen and it turned off on it's own.
When turning it back on power got back again.
After a while the LED looked like it had a bad connection or was going to break, then it stopped, so I measured power and it still had power.
I replaced the power regulator.
Didn't work so I removed all mods.
I don't know where to go from here. Right now the NES is blinking until I guess it gets a good connection with a game, then it just turn solid gray constantly. After around 2-5 minutes it turn off, maybe overheating?