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PostPosted: Wed Apr 11, 2018 5:18 am 
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Posts: 11
Hello
I buyed a another cartridge converter but i wanna mod to work expansion audio but i have a problem
Where i must soldeing to work
Image
I Ask because i must put NES Cartridge back to label to work and i don't know where i must put the resistors


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PostPosted: Wed Apr 11, 2018 9:52 am 
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Location: Seattle
I've marked pin numbers on your picture:
Attachment:
rwunsy_pins_marked.jpg
rwunsy_pins_marked.jpg [ 49.08 KiB | Viewed 572 times ]


See https://wiki.nesdev.com/w/index.php/Cartridge_connector


I think they might have already connected pin 51 for you... but to be certain I'd have to see the other side.


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PostPosted: Wed Apr 11, 2018 10:31 am 
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lidnariq wrote:
I've marked pin numbers on your picture:
Attachment:
rwunsy_pins_marked.jpg


See https://wiki.nesdev.com/w/index.php/Cartridge_connector


I think they might have already connected pin 51 for you... but to be certain I'd have to see the other side.


Image [Converted to link because the image is too large for many users' displays. --MOD]

Here is a backside


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PostPosted: Wed Apr 11, 2018 10:45 am 
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Yeah, they already connected audio for you. I've marked it in purple here:
Attachment:
fused_front_and_back_with_expansion_audio_marked.jpg
fused_front_and_back_with_expansion_audio_marked.jpg [ 70.16 KiB | Viewed 558 times ]


Unfortunately, I don't know if 72-pin connector pin 51 is actually used by anything. What pins you'll want to connect depends on what 72-pin cart with expansion audio you're trying to use... and depending on the exact hardware, you might need to cut traces and add a resistor.


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PostPosted: Wed Apr 11, 2018 11:03 am 
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Joined: Sat Sep 15, 2012 1:34 pm
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lidnariq wrote:
Yeah, they already connected audio for you. I've marked it in purple here:
Attachment:
fused_front_and_back_with_expansion_audio_marked.jpg


Unfortunately, I don't know if 72-pin connector pin 51 is actually used by anything. What pins you'll want to connect depends on what 72-pin cart with expansion audio you're trying to use... and depending on the exact hardware, you might need to cut traces and add a resistor.


Using simple Cabel or using Resistors?


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PostPosted: Wed Apr 11, 2018 11:10 am 
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Location: Seattle
It depends on the specific cart you want to play.


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PostPosted: Wed Apr 11, 2018 11:14 am 
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lidnariq wrote:
It depends on the specific cart you want to play.


I wanna run Everdrive on my Famicom/Pegasus


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PostPosted: Wed Apr 11, 2018 11:26 am 
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The current trace (that I've highlighted in purple) connects "EXP9" to the famicom audio loop.

The Everdrive N8 appears to connect "EXP6" instead.

You can see what happens if you just add a wire shorting out EXP6 and EXP9. If it works, great.

If it doesn't, you may need to do a lot more rework.


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PostPosted: Wed Apr 11, 2018 11:31 am 
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Joined: Sat Sep 15, 2012 1:34 pm
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lidnariq wrote:
The current trace (that I've highlighted in purple) connects "EXP9" to the famicom audio loop.

The Everdrive N8 appears to connect "EXP6" instead.

You can see what happens if you just add a wire shorting out EXP6 and EXP9. If it works, great.

If it doesn't, you may need to do a lot more rework.


Hmm, You can make a sheme how to connect in order to Adapter supports a expansion audio from everdrive?


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