:question: Hello guys. need your help, recently bought a av famicom, played in General fine, but after some time this happen http://cs630219.vk.me/v630219648/1a008/KKt1dxE5BuQ.jpg
that is, the graph is poured, never opened the console, the power supply I use AC/DC 9V and 1A
and so every 10 minutes, or immediately when you change your cartridge. :question:
So the exact same thing is happening for all games?
First thing to do is try cleaning all pins in your carts and Famicom cart slot. Use pure alcohol (90% isopropan alcohol is popular for this) and cotton swabs. If there's heavy oxidation on carts you can file it away with fine sandpaper or fiberglaspen.
Quote from: P on February 24, 2016, 12:20:31 am
So the exact same thing is happening for all games?
First thing to do is try cleaning all pins in your carts and Famicom cart slot. Use pure alcohol (90% isopropan alcohol is popular for this) and cotton swabs. If there's heavy oxidation on carts you can file it away with fine sandpaper or fiberglaspen.
Yes to all. What is most interesting, in my famiclone all cartridges are working properly. I was offered the option to check the regulator 7805 and another to check the heating of the chips.
Like after my purchase played two hours normally. For Example Gradius 2. Took, passed, and included other, spilling schedule. I turned it on again, too, begins to crumble.
But what is most interesting, when I turned on the game cartridge Akumajou Densetsu Reproduction - there's nothing spilling. Pretty weird.
Sounds like the carts are fine then. Yes check if anything becomes hot to the touch. It only ever happens after the console have been used for a while? It never happens when it's cold and haven't been played all day?
Quote from: P on February 24, 2016, 12:45:52 am
Sounds like the carts are fine then. Yes check if anything becomes hot to the touch. It only ever happens after the console have been used for a while? It never happens when it's cold and haven't been played all day?
With sound everything is good. Didn't play all day of course, and not in a cool room temperature, but something is clearly wrong. Still plugged AC/DC 10V and 1.2 A, but there was a small buzz. Well and started to test with this adapter. First 10 minutes everything was fine, but then it hangs the game. Even weird. Included adapter with 9V and 1A, the buzz is there, but after 5-10 minutes showered graphics
Quote from: Death_Devil on February 24, 2016, 01:05:33 am
With sound everything is good. Didn't play all day of course, and not in a cool room temperature, but something is clearly wrong. Still plugged AC/DC 10V and 1.2 A, but there was a small buzz. Well and started to test with this adapter. First 10 minutes everything was fine, but then it hangs the game. Even weird. Included adapter with 9V and 1A, the buzz is there, but after 5-10 minutes showered graphics
hey dude, relax!
he didn't asked you about the sound. :)
but you've spotted the light on the issue.
in general, the buzzing shouldn't be presented at all. Original cartridges for famicom were made at least a couple of decades ago, so, nobody will wonder that a cartridge itself could consume the same amount of power that entirely famicom console consumes.
that explains why you didn't have any issue with famiclone cartridges. They don't consume so much power as original ones.
do you have a multimeter or just a ohm meter around?
could you measure the resistance of inputs of the adapter?
it seems that the adapter you're using is a quite overrated. Please try to find good power adapter. True 1A should be way enough.
feel free to PM me (even in russian)
Quote from: famifan on February 25, 2016, 08:15:53 am
Quote from: Death_Devil on February 24, 2016, 01:05:33 am
With sound everything is good. Didn't play all day of course, and not in a cool room temperature, but something is clearly wrong. Still plugged AC/DC 10V and 1.2 A, but there was a small buzz. Well and started to test with this adapter. First 10 minutes everything was fine, but then it hangs the game. Even weird. Included adapter with 9V and 1A, the buzz is there, but after 5-10 minutes showered graphics
hey dude, relax!
he didn't asked you about the sound. :)
but you've spotted the light on the issue.
in general, the buzzing shouldn't be presented at all. Original cartridges for famicom were made at least a couple of decades ago, so, nobody will wonder that a cartridge itself could consume the same amount of power that entirely famicom console consumes.
that explains why you didn't have any issue with famiclone cartridges. They don't consume so much power as original ones.
do you have a multimeter or just a ohm meter around?
could you measure the resistance of inputs of the adapter?
it seems that the adapter you're using is a quite overrated. Please try to find good power adapter. True 1A should be way enough.
feel free to PM me (even in russian)
Yes not, with a unit power of norms, even 9V and 350mA works fine, but the same effect .
Quote from: Death_Devil on February 25, 2016, 10:53:00 am
Yes not, with a unit power of norms, even 9V and 350mA works fine, but the same effect .
просто напиши в личку. Трудно понимать гугло-перевод и переводить это обратно 2 раза :) Врядли остальные хоть чучуть поймут тебя тут (без обид).
найди нормальный БП и всё. :-X
///
i recommend to replace your power adapter with a good one. Like i said, 9 or 10V true 1A rated is well enough for famicom. :)
so, the guy got a very strange noise at PPU buses somewhere. So basically, all tiles/sprites looked correct but they're placed at the wrong positions and floating around under some patterns. Background is almost fine though.. Idk the root cause. I suspect the worn-out slot. Otherwise it could be a damaged ICs/circuitry around PPU.
glad, it has nothing to do with the power adapter :)