Hi, I finally could put my hands at a japanese Gimmick! cartridge.
It's a nice game but I wasn't getting the aditional audio out of my clone, a Phantom System.
I traced it's audio path and thats what I've got:
As seem on the schematics, it had a connection to the cartridge pin 54.
I tried to route the external audio to this pin inside the adapter and got no external sound, even with a resistor.
I ended cutting the trace of the pin 54 and routed to the negative pin of the electrolytic capacitor, with a 100k resistor inside the adapter.
Sounded fine to me. Now I think that small video would help to show how it is sounding... I'll do it as soon as possible.
My doubts are:
1- Is this mod correct? I mean, won't It fry something on the long run?
2- How different is this mod from the original NES mod recommended in many places? Sorry, I didn't find the schematics for that...
3- Would an simpler adapter mod, without the need to mod the console be possible? How?
Thanks in advance!
It's a nice game but I wasn't getting the aditional audio out of my clone, a Phantom System.
I traced it's audio path and thats what I've got:
Attachment:
File comment: Audio path Phantom System
Phantom System audio path.png [ 6.36 KiB | Viewed 4972 times ]
Phantom System audio path.png [ 6.36 KiB | Viewed 4972 times ]
As seem on the schematics, it had a connection to the cartridge pin 54.
I tried to route the external audio to this pin inside the adapter and got no external sound, even with a resistor.
I ended cutting the trace of the pin 54 and routed to the negative pin of the electrolytic capacitor, with a 100k resistor inside the adapter.
Sounded fine to me. Now I think that small video would help to show how it is sounding... I'll do it as soon as possible.
My doubts are:
1- Is this mod correct? I mean, won't It fry something on the long run?
2- How different is this mod from the original NES mod recommended in many places? Sorry, I didn't find the schematics for that...
3- Would an simpler adapter mod, without the need to mod the console be possible? How?
Thanks in advance!