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Since it's the MMC5 that's actually producing the audio how would you go about wiring up the EXT audio into the cartridge connector? OR what pin on the cartridge would to audio be coming out on?

I piped the famicom extra audio to pin 3 of the expansion port through a 100k ohm resistor and a 4.7 uF capacitor.

http://johnslife.tripod.com/NES_pin_article.pdf

82atari5200 wrote:Since it's the MMC5 that's actually producing the audio how would you go about wiring up the EXT audio into the cartridge connector? OR what pin on the cartridge would to audio be coming out on?

Did you even get this game to load on a PowerPak because I can't....

eastbayarb wrote:Did you even get this game to load on a PowerPak because I can't....

The PowerPak has no support for the MMC5.

I'm not sure what you are asking. Do you want to play Just Breed through a 60 to 72 adapter and get extra audio, or are you making a Just Breed repro using an american/european MMC5 cart and want the extra audio ?

In the first case you'll have to add a wire in your adapter and add a resistor in your NES (possibly a capacity too). In the second case you'll have to add a few resistors and capacities on the board (there is already slots for all of them), and a wire in your NES (don't even need to open it if you use the expansion connector I guess, but I haven't done that so I don't know how well this will work).

Bregalad wrote:I'm not sure what you are asking. Do you want to play Just Breed through a 60 to 72 adapter and get extra audio, or are you making a Just Breed repro using an american/european MMC5 cart and want the extra audio ?

In the first case you'll have to add a wire in your adapter and add a resistor in your NES (possibly a capacity too). In the second case you'll have to add a few resistors and capacities on the board (there is already slots for all of them), and a wire in your NES (don't even need to open it if you use the expansion connector I guess, but I haven't done that so I don't know how well this will work).

I'd like to play Just Breed on a repro cart, but I don't know how to make one. I have already done the audio mod on my NES.

You'd have to use two EPROM on a EKROM/ETROM/EWROM board, and rewire them so that the work with the MMC5.

For the sound, just add resistors and capacities where the board have slots for (it even says the values), but the audio pin used is EXP 6 (pin 54) which is probably not the same as the power pak or Famicom->NES adapters so you'll have to add one more wire anyway.

Or just use Just Breed japanese as a donnor cart. Altough with a FC->NES adapter the cart is longer than supposed so it gets out of the NES, and you have to use a pencil to block it as low as possible (that worked great for me at least).

Actually powerpak uses pin 54 cause mmc5 carts output to that pin.

Bregalad wrote:You'd have to use two EPROM on a EKROM/ETROM/EWROM board, and rewire them so that the work with the MMC5.

For the sound, just add resistors and capacities where the board have slots for (it even says the values), but the audio pin used is EXP 6 (pin 54) which is probably not the same as the power pak or Famicom->NES adapters so you'll have to add one more wire anyway.

Or just use Just Breed japanese as a donnor cart. Altough with a FC->NES adapter the cart is longer than supposed so it gets out of the NES, and you have to use a pencil to block it as low as possible (that worked great for me at least).

That's what I was asking was about the donor carts. Thanks for the info. Just took a look at my Castlevania III cart. (us version) and noticed a pin on the backside of the cart in the middle I believe it's pin 54 Question is...why put a sound pin on a cart that the pin will never be used unless you mod the system in the first place? So basically all i have to do is ad a wire and resistor from exp 6 to cart port 54 and my just breed repro will have extended sound.

Well they probably were planning an exp port jumper. Also for the just breed audio you do need to add the sound components in the cart.

Castlevania III can't be a donnor for Just Breed because it has no SRAM. You need one of the Koei games (any will do, because JB needs 8kb of SRAM, but any game with 16 or 32kb will work fine as well, JB doesn't relies on the SRAM to be mirrored or something evil like that).

It's great that the power pak uses the same pin as MMC5 carts, tough the output resistor is already in the MMC5 board. If you added it on the exp port already you'd probably just want to place a wire above the slot for a resistor, else both will be in series and the total resistor will be too high ? I might be completely wrong here I don't really know.

No, I know about Castlevania. It was the only MMC5 cart I had lying around. Gemfire will be here this weekend. I plan on using that cart.

I once saw a video where someone added the sram to cv3

Jeroen wrote:I once saw a video where someone added the sram to cv3

wow do tell!

I havnt looked into it so I cant tell you how. Check youtube