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 ...
Sounds like "i want to cook onion soup, but i don't want to use onion, what i should do?"
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!
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
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.
easily
http://www.famicomworld.com/forum/index.php?topic=4713.msg117815#msg117815
http://www.famicomworld.com/forum/index.php?topic=4713.msg117816#msg117816
http://www.famicomworld.com/forum/index.php?topic=4713.msg112281#msg112281
http://www.famicomworld.com/forum/index.php?topic=4713.msg117161#msg117161
Spoiler
(http://www.famicomworld.com/forum/index.php?action=dlattach;topic=4713.0;attach=2029;image)
http://www.famicomworld.com/forum/index.php?topic=4713.msg112179#msg112179
Spoiler
(http://www.famicomworld.com/forum/index.php?action=dlattach;topic=4713.0;attach=1801;image)
disclaimer: mad soldering, resin's drops, ignore additional wires!
Great thanks ! SMD capacitors are really better ?
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.