Between these two AV modifications, there're no differences on the screen ...

Started by famiav, March 03, 2013, 02:28:24 am

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famiav

On my first Famicom, I make this AV modification : http://www.famicomworld.com/forum/index.php?topic=4713.msg109867#msg109867

The image on the screen was very beautiful with great colors. But my problem was jailbars, like everyone...

So, I decided to make this revision of AV mod : http://jpx72.detailne.sk/modd_files/fc/avmod.htm  I felt that jailbars be minimized with this.

However, the picture on my TV is exactly the same as the first mod ! And I always jailbars on the image ...

I dare not desolder the PPU to put the "copper foil",  I welded ceramic capacitors around the PPU between a +5 V and GND point, but I have no difference ...

80sFREAK

Sounds like "i want to cook onion soup, but i don't want to use onion, what i should do?"
I don't buy, sell or trade at moment.
But my question is how hackers at that time were able to hack those games?(c)krzy

famifan

Quote from: famiav on March 03, 2013, 02:28:24 am
I dare not desolder the PPU to put the "copper foil"

actually i'd wrapped PPU by copper foil without any desoldering. And it works without jailbars!

famiav

Quote from: famifan on March 03, 2013, 04:11:43 am
Quote from: famiav on March 03, 2013, 02:28:24 am
I dare not desolder the PPU to put the "copper foil"

actually i'd wrapped PPU by copper foil without any desoldering. And it works without jailbars!


Hmm. Interesting ! If you do not mind famifan, could you send me exactly what you've done and implanted into your AV mod and on the motherboard in the form of steps please? That would be great!

Also, in my Famicom, there is a metal plate affixed to the PPU, silver in color. What is it?

Finally, regarding jailsbars, look at this French site, according to them, a 100uF capacitor and a 3300 uF are enough to get rid of jailbars. Strange: http://www.otakus-store.net/fr/content/12-famicom-av

80sFREAK

Quote from: famiav on March 03, 2013, 05:23:26 am
Also, in my Famicom, there is a metal plate affixed to the PPU, silver in color. What is it?
heatsink
Quote
Finally, regarding jailsbars, look at this French site, according to them, a 100uF capacitor and a 3300 uF are enough to get rid of jailbars. Strange: http://www.otakus-store.net/fr/content/12-famicom-av
Very neat job, but very complicated.
I don't buy, sell or trade at moment.
But my question is how hackers at that time were able to hack those games?(c)krzy


famiav


80sFREAK

Quote from: famiav on March 03, 2013, 12:46:44 pm
Great thanks ! SMD capacitors are really better ?
Remember - pins as short as possible. You don't need to buy'em new, desolder from old PC mobo.
I don't buy, sell or trade at moment.
But my question is how hackers at that time were able to hack those games?(c)krzy