How to undo a PAL-M to NTSC modification on SCPH - 7501
Posted: July 5th, 2020, 10:27 pm
Hello,
I am from Brazil, here we have a different color system. It is a PAL-M, something like a 60Hz PAL. Because this all psx that came here in the 90's were modified from NTSC to PAL-M.
This weekend I tried to remove this modification from my PSX model SCPH - 7501, but something got wrong. Could someone help me?
I will try to explain what have happened. I have opened my psx and found this mod there.
This circuit in the left is the new crystal to achieve the PAL-M, but the original one is placed there yet. So I read that if I want to return my video game to NTSC all that I need to do was remove these wires.
Here another pictures: Well.., I removed the four wires but the image has turned horrible? Something like an RF signal with bad antenna.
My question is: has someone of the forum who already removed this type of modification? Are there any other point to be aware? I read that in the other side of the board there had to be a welding point too. But on my board there is not.
Could some one help me?
I think that the mod from NTSC to PAL-M is pretty like the one from NTSC to PAL. This is the reason that I came here
Best Regards.
I am from Brazil, here we have a different color system. It is a PAL-M, something like a 60Hz PAL. Because this all psx that came here in the 90's were modified from NTSC to PAL-M.
This weekend I tried to remove this modification from my PSX model SCPH - 7501, but something got wrong. Could someone help me?
I will try to explain what have happened. I have opened my psx and found this mod there.
This circuit in the left is the new crystal to achieve the PAL-M, but the original one is placed there yet. So I read that if I want to return my video game to NTSC all that I need to do was remove these wires.
Here another pictures: Well.., I removed the four wires but the image has turned horrible? Something like an RF signal with bad antenna.
My question is: has someone of the forum who already removed this type of modification? Are there any other point to be aware? I read that in the other side of the board there had to be a welding point too. But on my board there is not.
Could some one help me?
I think that the mod from NTSC to PAL-M is pretty like the one from NTSC to PAL. This is the reason that I came here

Best Regards.