8 Wires Famicom Disk System 3206 Modchip

[Tomy]

It is more simple installation than this :
http://famicomworld.com/workshop/tech/famicom-disk-system-fd3206-write-mod/

Check here :
http://tototek.com/phpBB2/viewtopic.php?t=3306



Both method are the same. But my modchip original is from Taiwan.
So, it is not the clone of famicomworld circuit.

I have a very special one too, it is 7201 clone. Just remove original 3206, then install 7201 clone chip.
It work like original 7201 drive. But unfortunely, I lose this chip.

-Tomy

[Xious]

Hi Tomy: Thank you the link and the diagram, however I'm a tad confused... Are you selling a kit of some kind, or just providing FW members with the information?

I don't see any part number for the IC in your illustration, either here on on your site, so I'm not sure if this is something you plan to sell or simply a new way to mod the drive controller. If it's just for reference, what IC have you used for this conversion?

That's a shame about the fully-drop-in replacement IC. How old was it? Do you have any information on who made it and when it was originally on the market? That would be interesting historical information, to say the least. Thanks again.

[ericj]

He sells it on his site for $10, HERE.

[Xious]

A-ha! Good to see some new products. I just wish Tomy would've plugged the link into his post here or the forum topic on his site, as this is the first I've seen of it, and it's easily worth the price, especially if it's pre-wired, soldered and ready to install. I'm curious what he used for the main IC, or if it's a PLD of some type, purely from a technical interest.

I actually find 3206 drives to be uncommon, and the most important modification is the power board, as few exist without copy protection. In fact, I'm wondering if my PRW-03 has anti-piracy circuits, and I need to look it over again, as that drive is giving me write errors, seemingly at random...

I may pick one or two up to look them over. Thry seem like a good product for anybody wanting a quick and easy mod board that's ready-made.

I still need to contact the fellow who makes the Retro-Adapter to offer some of the controllers and whatnot that he needs and to ask if be can add the A5200 trackball to the compatibility list: That would be an awesome addition for MAME.

I have many of the controllers on his 'want to add when I get one to examine' list, and I don't mind sending a few of them over for dissection. The 5200 trackball is possibly one of the best of its kind ever made, though the Retro-Adapter already supports the Famicom HoriTrak and normal FC controllers via a built-in DA-15 port, not to mention a huge selection of other types... Considering that almost no FC games actually work with the HoriTrak, I find it amazing that he included it at all, so perhaps there's hope for the 5200 ball and MAME after all...

I also haven't heard back from you, so I hope you received my phone message. I have all that stuff for you ready to go, so call me when you can: My Internet connection is at present limited to my mobile devices...

[jpx72]

Oh great to have you on Famicomworld, Tomy of Tototek!

[satoshi_matrix]

Tomy, could you also tell me when I might be able to order two of these? http://www.tototek.com/store/index.php?main_page=product_info&cPath=23&products_id=55 I've been checking for a while now and it always says out of stock.

[Tomy]

A-ha! Good to see some new products.  I just wish Tomy would've plugged the link into his post here or the forum topic on his site, as this is the first I've seen of it, and it's easily worth the price, especially if it's pre-wired, soldered and ready to install. I'm curious what he used for the main IC, or if it's a PLD of some type, purely from a technical interest.

I make it for the people who can't find the parts or have difficult to make PCB and assemble all stuff from famicomworld circuit. And my source is not from famicomworld circuit (I mention above). It is from Taiwan's FDS modchip. It is the second one. The first one can completely replace 3206, and it work like 7201 chip. Mine is a bit different from the Taiwan one. Taiwan one use Bipolar PLD, mine use more new version PLD. Taiwan one no need to cut two wires. Mine need to cut two wires (from Japan Mag, need to cut two wires too).

You have FMD-POWER-03, so, can you post picture of it ? Never seen it before.

Sorry, it is not pre-wires. If you need, PM me.

-Tomy

[Xious]

Hi Tomy,

I have a thread with links to photos on the PWR-03 board and the HVC-CPU-(04) Famicom here:

http://www.famicomworld.com/forum/index.php?topic=5346.0

[Tomy]

Hi Xious,

I'm wondering if my PRW-03 has anti-piracy circuits

Thanks for the picture. From your picture, I think it is no protection at all.

-Tomy

[Xious]

I didn't think so either, however multiple 7201P drives have given the same error code when I used it with both Copymaster and Disk Keeper, so there has to be something different about it that is keeping disks from writing. In fact, the more I think about it, there doesn't seem to be any reason for it to exist if it didn't have some copy protection mechanism in place, as the Rev-02 design is technically sound and all changes to it on the later versions were to add a write-lockout.

I will eventually do a detailed comparison (with schematics) to illustrate the difference between the Rev-02 and Rev-03. It may be a very simple alteration as a 'stopgap' measure that Nintendo made before they perfected the full protection circuit on the Rev-04 and I'll inspect it once I have time to do things like that.

Right now I'm ill and can barely keep up with my normal tasks, so it may be a while before I get to doing this, but it's been on my to-do list for a while, so I will eventually get around to it.