Dismantling / Opening A4tech bloody g437 and fix left right sound balance issue due to volume control potentiometer

Video Link : https://youtu.be/nmCBw3dQjt4

If you have issues of getting different sound level in left and right side of your headphones. Then this tutorial is for you. It will cover bloody g437 and redragon siran 2 h302, but the process should be similar for other cheap headphones as well. 

So basically, first you will need to open the component which houses the volume control potentiometer. In case of A4tech bloody g437 its in the headphones, while on Redragon h301 siran 2, its a dedicated volume control

The cushion comes right off with a little force, revealing the screws. Unscrew them to see the main PCB. make sure to only open the right side which has the volume control and all other circuitry. 

Here is the PCB of A4tech Bloody g437. Right above the potentiometer, you will see 5 pins. That's the volume control.

This is basically how the potentiometer works. One pin will always be GND = ground. We don't need to touch this. Other 4 will be L-R in and out. The CHRin is 100% volume, and comes out from CHRout with changes applied by potentiometer. If potentiometer is at 20%, then volume from CHRout will be 20%. Problem is that sometimes this component becomes faulty, so you get different levels from CHRout and CHLout. You can just replace this component if you have a spare, I couldn't find it so i thought about bypassing it completely, By simply connecting CHRin with CHRout and CHLin with CHLout. You can find out about which wires are for channel and GND by using multimeter and set it to resistance mode. Changing the potentiometer's value will change the resistance on multimeter as well.

This is how it looks finally. The red wires are the one's that are shorting the potentiometer.

Perhaps, this is a far better view. This is Redragon h301 siran 2's volume control that is directly on the wire itself, its really easy to open, just use a screw driver to open it. It has no screws. You can see the Right most pin is GND, which i didn't touch. and connected CHRin with CHRout and CHLin with CHLout.

I, now use the volume control inside windows 10 to adjust the volume of headphone. 

Hope this post helps anyone of you!