Question Fix noise for Wii portable

[tanakorn]

Is it with an unstable power system? How can I fix it? Thanks in advance (I use google translate)

 

[Stitches]

We'd need to see a photo of the internals to provide specific advice, but to me it sounds like the amp you're using has some problems.

 

[tanakorn]

We'd need to see a photo of the internals to provide specific advice, but to me it sounds like the amp you're using has some problems.

The noise will come from the motherboard. I tried taking the audio signal from the motherboard directly to the headphones without amplifying it. But there is still noise coming out.(A little bit inside not finished yet So I haven't kept the wires.)

 

[Stitches]

You could try removing the pre-amp on the Wii

 

[tanakorn]

You could try removing the pre-amp on the Wii

The preamp you are talking about is this IC?

 

[Stitches]

Yes, that one. Sometimes having the pre-amp still on the board can cause trouble, so removing it would be my personal step 1

 

[tanakorn]

Yes, that one. Sometimes having the pre-amp still on the board can cause trouble, so removing it would be my personal step 1

Thanks, I'll try it.

 

[tanakorn]

I've tried removing the preamp IC. But still have the same noise. If it's not the power system, it's probably the motherboard. I will try to fix the power system again when I have time.

 

[Shank]

Any noise that's picked up by the audio lines between Wii and the audio amp will also be amplified. I would advise shielding these wires. It will help reduce airborne interference.

What regulators are you using? Noisy regs could also be the culprit.

 

[tanakorn]

Any noise that's picked up by the audio lines between Wii and the audio amp will also be amplified. I would advise shielding these wires. It will help reduce airborne interference.

What regulators are you using? Noisy regs could also be the culprit.

thank you this is my regulators I only have this in my country I will try to replace in case the old one may be damaged

 

[Senor Avocado]

I used those regulators in my portable and I have fine audio. I agree with shank that it is probably the long unshielded wires that are probably introducing all the noise. Also what wattage are you speakers? I think that audio amp board outputs about 3 watts per speaker, and if your speakers aren't rated for that you can get some nasty noise

 

[tanakorn]

I used those regulators in my portable and I have fine audio. I agree with shank that it is probably the long unshielded wires that are probably introducing all the noise. Also what wattage are you speakers? I think that audio amp board outputs about 3 watts per speaker, and if your speakers aren't rated for that you can get some nasty noise

Thank you. I put the NDS speakers in. I don't know how many watts. I think the noise is probably coming from the motherboard.I tried taking the audio signal from the motherboard directly to the headphones without amplifying it. But there is still noise coming out.

 

[Stitches]

Thank you. I put the NDS speakers in. I don't know how many watts. I think the noise is probably coming from the motherboard.I tried taking the audio signal from the motherboard directly to the headphones without amplifying it. But there is still noise coming out.

NDS speakers are either 0.25w or 0.5w, can't remember which, and the generic replacement units are sometimes trash. I tried using them for my first portable and they failed miserably. You'll probably want to replace them with some 1w or 2w speakers with 8ohm impedance.

 

[tanakorn]

NDS speakers are either 0.25w or 0.5w, can't remember which, and the generic replacement units are sometimes trash. I tried using them for my first portable and they failed miserably. You'll probably want to replace them with some 1w or 2w speakers with 8ohm impedance.

Thanks, I'll have to find a new speaker as you suggest.