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Need some quick help with soldering drivers without a diagram

Discussion in 'DIY (Do-It-Yourself) Discussions' started by Viber, Jun 14, 2018.
  1. Viber

    I actually did this fix in the past, but im not so sure: which wire goes where?
    Obviously my cable got a ground wire + colored wire for each driver, why are there 4 connections on the driver itself? is the red marker on the magnet an indication for something?

    Thanks for the help and sorry about the nooby questions!
  2. Oscar-HiFi
    Normally the red dot is the + side. But that is not the same for all manufacturers. I would ask the manufacturer or seller of the drivers.
    Viber likes this.
  3. Viber
    What is "+ side" ? The ground wire or the colored one?
  4. Oscar-HiFi
    Coloured should be the + signal.
    Viber likes this.
  5. Viber
    hmmm seller wasnt helpful. I think ground under the red marking sounds slightly better, really hard to tell.
  6. HiGHFLYiN9
    Impossible to know. You'll have to wire them up and then put through a polarity test. I purchased one on the phone app store for a couple of bucks, it uses the speaker and mic and lets you know if the speaker is in phase or not.
    Viber likes this.
  7. Viber
    ok so i already lost my mind lol.
    Tested with 2 cables, did polarity tests here:

    Everything they say is noticeable with my PC speakers, but with these drivers "In Phase" and "Out of Phase" samples sound the same no matter if i connect the "+" on the most right "pad" or the most left one. Wish i knew what i'm doing wrong...
  8. HiGHFLYiN9
    I tried that one too, got nowhere, Try Speaker Pop in your phone's app store, I've verified it works with headphone drivers.
    Viber likes this.
  9. Viber
    not on Android tho...

    JBL brasil seems to have a similar app, i'll check it tomorrow.

    Thank you for your help so far!
  10. hasmac
    Hi Viber, coloured dot is signal (+) side, non-coloured dot is ground side. Even if this particular headphone is 'the other way' it doesn't matter, so long as you do the same on both drivers, then they'll both be in phase. Solder the wires to the outer tabs only, the inner tabs are for the coil wire, you can see the inner tab is connected to it's respective outer tab in the circuit board copper, you can see a lighter colour in the circuit board between the inner and outer tabs indicating copper connection. The coil wire is soldered to the inner tabs, it is best not to solder to the same tabs since excess heat from the iron can dislodge the coil wires, and that will likely become unrepairable. That's why the wires go to separate tabs, to provide some thermal isolation for the coil wires.
    Viber likes this.
  11. Viber
    You sound like you know what you're talking about and this is line with stuff I've read in the past. Thank You!

    Anyone has something important to add ? :nerd:

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