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I am not an electrical engineer, but because I broke the 3.5mm jack of my headphone, I decided to mod it to have a removable cable.

It's a headphone with mic (HyperX Cloud2). It works well when I plug a 3 conductor audio cable into it (left and right speakers working properly.)

The issue is when I use a 4 conductor audio cable, the sound becomes really weird, kind of echoish.

I wonder what the cause could be.

  • Did I solder wires on wrong pins?
  • Are some cables still insulated?

How could I test this to know where this issue is coming from?

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  • \$\begingroup\$ Ah..the Cloud2. Them 3.5mm cables are always broken. xD Echo in an earphone denotes a bad ground. Can you show pictures or details of your mod? I'm not sure exactly how you modded it. I think you reversed the ground and Mic pins though. \$\endgroup\$
    – Natsu Kage
    Jan 27, 2020 at 3:42
  • \$\begingroup\$ Did you wire it like this? i.imgur.com/WrlzIUC.png If you reversed the Mic and GND locations, you will have your issue. \$\endgroup\$
    – Natsu Kage
    Jan 27, 2020 at 3:50
  • \$\begingroup\$ Ok, thank you! I' ll try to revert the mic and gnd cables tonight. (I'll also add photos so It will be easier to understand) \$\endgroup\$
    – volail
    Jan 27, 2020 at 4:09

2 Answers 2

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Natsu Kage was right.

I inverted the microphone wire with a ground wire.

Here is how it looks after the fix:

enter image description here

(Yes, it looks really dirty but well, I had a lot of troubles.)

I had swapped the white and red wires.

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    \$\begingroup\$ I've done this error multiple times myself when I first started repairing headsets like the Cloud2, haha. You might want to add the picture I gave earlier in the comments to your answer, to help others. \$\endgroup\$
    – Natsu Kage
    Jan 27, 2020 at 13:19
  • \$\begingroup\$ Keep in mind that this convention is not consistent between manufacturers. Moving forward, there is a tendency to put mic on shell and ground on ring2, but it's not consistent in legacy devices. \$\endgroup\$ Jan 27, 2020 at 15:05
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What i did? Mine has:

  • Red(mic)
  • gold (ground)
  • blue
  • green
  • red+blue

I soldered the dual colored wire(red+blue) with either blue or green wire. I thought the dual color wire was ground. Everything worked.

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