Why is VRC6 so loud on the AV Famicom? Is there a way to fix

It's a known "issue". Nintendo lowered the CPU audio volume on later red and white Famicom board revisions, which makes expansion audio louder by comparison. That change was carried over to the AV Famicom as well.

I haven't tried this myself, but supposedly you can play with these resistor values to adjust the CPU audio volume.
http://www.famicomworld.com/forum/index.php?topic=7408.0

File: Famicom circuit restoration_.jpg (958KB, 2048x1152px) Image search: [Google]

958KB, 2048x1152px

>>3957282
>>3957478
the better and easier way is to restore the original circuit.
note that a 74HCT04 should be used as some 74HC will only output 3.3v and the result will be the same.

>>3958131
It might be better, but I don't think that qualifies as "easier" than changing a couple of resistors.

>>3958165
1 desolder and 1 trace cut

vs

4 desolder

imagine butchering a piece of hardware because your autistic faggot brain can't handle a slightly louder noise

>>3958184
1 desolder and 1 trace cut and buying and soldering together a whole bunch of other shit.

You don't even need to desolder the resistors for the other method. Just add a couple in parallel to get to the desired values.

>>3958193
you obviously never played expansion audio on AVFamicom.

>>3958131
How are the noise characteristics of this method? The AV Famicom audio circuit has very little noise compared to the original Famicom. If this is going to make my AV Famicom sound as noisy as a red/white Famicom, I think I'll just deal with the louder expansion audio.

>>3958131
>gore
>babys first circuit obligatory hex inverter
I'll pass

>>3959784
the original had an inverting gate as amp.

>>3958203
it's the same.

>>3960372
Elephants have long noses. Just as relevant.

>>3960378
The same as which one?

>>3960680
AVF