ok, I got:
* the left chanel (whyte) and connected it to the pin (left audio channel)
* the right chanel (red) and connected it to the pin (right audio channel)
* and I connected "GND" from gc to a pin in the tv named "AGND"
the video works perfect without any noise at the signal (I also used the small circuit board included inside the original "Gc/n64 Composite video/audio cable" and connect it in the middle of gc and tv. so the video is fine.
now the problem is audio. When I turn the gc on, I hear a "BFFFFFFFFF" annoying noise coming from the speakers I added to the tv spk out.
the audio signal sounds, I can hear the stereo sounds, But with an implayable "BFFFFFF" noise sound also.
I connected the original cable to a normal tv, and it sounds fine, but when I use the wired stuff (All wires I soldered from GC mobo to portable tv board) the annoying noise coming with the signal.
help will be great apreciated. dont matter if the answer is not exactly or thecnical.
only need a little orientation to know posible problems with sound.
thanks again guys
[EDIT] Fixed with some capacitors
