Looking for preferred method for composite mod for original Famicom

Started by Syco54645, November 23, 2016, 06:54:06 am

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Syco54645

I have seen 2 or 3 different methods for the original Famicom and am wondering which method is the best. Originally was going to do the NESRGB for s-video but I am unwilling to give up the eject function (kinda silly I know). So what is the preferred method as of now? Also I have pretty bad jailbars when using rf so I figure it will not be better with composite without some work.

FAMICOM_87

if you add cap between + and - you will reduce the jailbars  ;) 

Syco54645

Quote from: Mi5terDNA on December 06, 2016, 10:57:50 am
I believe they don't recommend the NESRGB on the original Famicom due to earlier PPU revisions anyway, you probably made the right choice there.  There's lots of drop-in AV mod kits on eBay now, I wonder if they're any good?

I did not know that they made dropin kits. I did not see any when I looked. Perhaps I am searching the wrong thing?

Quote from: FAMICOM_87 on December 05, 2016, 01:30:52 pm
if you add cap between + and - you will reduce the jailbars  ;)  


Which + and -?

FAMICOM_87

Syco54645, add one cap 47mF 5V  or above + on pin 22 on PPU  and - on nearest ground like in the scheme , and add one more bigger cap like in the scheme 220mF again 5V or more on any point with 5V and nearest  ground (in the scheme + is pin 40 on PPU,  I used 1000mF or more, the resolutes are better for filtering )

use on this scheme only those caps to reduce vertical lines, and for AV mod the simplest way is in the second picture :) in my case this is the best combination , and I did not disable my RF  ;)

good luck

just look my RF picture quality  8)
http://www.famicomworld.com/forum/index.php?topic=12321.0


Syco54645

Quote from: Raverrevolution on December 07, 2016, 07:42:09 am
They're still there;

http://www.ebay.com/itm/DIY-FAMICOM-AV-Module-for-your-Famicom-FC-system-/272471749277?hash=item3f7094f29d:g:lt4AAOSw3mpXKpaW

http://www.ebay.com/itm/DIY-FAMICOM-AV-Module-for-your-Famicom-system-with-3-5-Port-/272451347967?hash=item3f6f5da5ff:g:A4MAAOSw2GlXFZnj

These guys sell some neat stuff.  I wouldn't mind picking one up myself.  I wish everything was a tad cheaper though.


Wow those look awesome! I wonder how the jailbars are on it. This is pretty much exactly what I was looking for as it keeps the console as stock as possible.

famifan

Quote from: Raverrevolution on December 07, 2016, 07:42:09 am
I wish everything was a tad cheaper though.

really? no one can stop you.

just design your own PCB and send it to PCB factory. Once you get the PCBs, then solder the components.

produced PCB could be around $3-5, all required components for 1pcs are at most $3 too. so, you'd probably fit into $10 excluding your priceless time for PCB designing and soldering job.

Syco54645

Quote from: famifan on December 08, 2016, 12:43:35 pm
Quote from: Raverrevolution on December 07, 2016, 07:42:09 am
I wish everything was a tad cheaper though.

really? no one can stop you.

just design your own PCB and send it to PCB factory. Once you get the PCBs, then solder the components.

produced PCB could be around $3-5, all required components for 1pcs are at most $3 too. so, you'd probably fit into $10 excluding your priceless time for PCB designing and soldering job.


I saw nothing wrong with his statement. If we want to get technical the board costs more than a working famicom... And is coming from china where this sort of stuff is notoriously cheap and sometimes absolute crap quality.

Raverrevolution

Quote from: famifan on December 08, 2016, 12:43:35 pm
Quote from: Raverrevolution on December 07, 2016, 07:42:09 am
I wish everything was a tad cheaper though.

really? no one can stop you.

just design your own PCB and send it to PCB factory. Once you get the PCBs, then solder the components.

produced PCB could be around $3-5, all required components for 1pcs are at most $3 too. so, you'd probably fit into $10 excluding your priceless time for PCB designing and soldering job.


Geez, what the hell did I do to piss you off?  

Yeah I wish everything was a tad cheaper, "everything" is the key word here, because the AV units and the FPGA systems look great, but I can't justify it now because I'm not going to blow almost $40 to AV mod a Famicom or $169 to buy a whole new console to play my games on after I installed a hi def nes into my Famicom AV which was a gift to me.

I've never heard of someone get so pissy over such a little comment.  There's no need for hostility here and I certainly wasn't looking for or expecting it.  If I knew such a line said would piss on someone's engineering degree I would take it back, but you make even the most mundane sentence written feel like eggshells are being stepped on.