Famicom Audio Hum / Buzz

[b1aCkDeA7h]

Bought an original Famicom, got it and when put through the RF, the picture is fine but the audio hums or buzzes.

The hum/buzz carried through even after I AV modded it.

Any thoughts/ideas?

[b1aCkDeA7h]

Getting word that it may be the filter capacitor or the voltage regulator.

Fun stuff.

[aclbandit]

Bought an original Famicom, got it and when put through the RF, the picture is fine but the audio hums or buzzes.

The hum/buzz carried through even after I AV modded it.

Any thoughts/ideas?

Well, weird as it sounds, try blowing in the microphone on controller 2 to see if the noises you make come from the TV speakers.

After that, try moving controller 2 to a different spot.

My Famicom is a total weirdo, but I can hear the audio from controller 2's microphone through my TV (maybe an intended feature?) and if it's in the wrong spot, I get some audio feedback noise (like pointing the microphone at the receiver... or whatever it was that made that horrible noise back in my elementary school plays >_<;

[FABombjoy]

^^^ just went through this! Had a strange buzz, sat something down next to the famicom & heard a "clunk" through the stereo. Turned down the mic - buzz disappeared.

[aclbandit]

^^^ just went through this! Had a strange buzz, sat something down next to the famicom & heard a "clunk" through the stereo. Turned down the mic - buzz disappeared.

Cool to know that my Famicom isn't abnormal. Hopefully this fixes the original poster's issues too.

[Kiddo]

My Famicom also plays the audio through the 2nd player microphone. It seems to be an intended feature.
If that's your problem, simply turn it down to the lowest volume.

[RP2A03]

I had a similar problem on my Twin where the microphone would send feedback to the speakers, even with the microphone volume all the way down. The problem went away when I opened the controller and cleaned the slider track with alcohol. This will also take care of any scratchiness that may be present when adjusting the volume.

[b1aCkDeA7h]

Yep, the mic was the culprit. I hate it when it turns out to be a simple solution and all my stress was for nothing.

[aclbandit]

Yep, the mic was the culprit. I hate it when it turns out to be a simple solution and all my stress was for nothing.

It's bothersome, but at least it was a cheap and easy problem, right ?

[b1aCkDeA7h]

It's bothersome, but at least it was a cheap and easy problem, right ?

Indeed. Still need to fix a couple of minor things underneath but the end result will be a salvaged Famicom once thought to be broken.