Acer Aspire 3830TG,speakers work but built-in microphone doesn't work, OS: Windows 7 64 bit Ultimate

245

Answers

  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    Same problem still exists. I accidentally clicked on the option that it solved my problem.
  • JackE
    JackE ACE Posts: 44,868 Trailblazer
    >>>I accidentally clicked on the option that it solved my problem. >>>

    I don't understand? Is your problem solved by accidently clicking on ***what*** option? Jack E/NJ

    Jack E/NJ

  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    No. I accidentally clicked here  on yes. Problem still exists. Sorry!!!
  • JackE
    JackE ACE Posts: 44,868 Trailblazer
    OK, let's try to test the internal microphone with no external mic connected. Make sure it's enabled. Then select it and click on Configure. Then click on Setup Microphone. Select microphone type from the list presented. Click next to follow the on-screen prompts. Report back with results. Jack E/NJ

    Jack E/NJ

  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    It gives me some text to read it. But my internal microphone does't record anything. Microphone is not muted, I checked it.
  • JackE
    JackE ACE Posts: 44,868 Trailblazer
    edited February 2018
    OK. I suspect the internal microphone---or its two wires---or its connector are open-circuited. To test this, remove the connector from the mainboard. Then insert 2 fine wires into the mic's connector and check their continuity with a multimeter. They should be about 30-40 ohms between the two wires. Jack E/NJ      

    Jack E/NJ

  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    I'll try. 
  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    Is this micophone. When I disconnect it, the recordig device's list doesn't change. But there are 4 wires and they are conected to the monitor connector. And all together to MB.
  • JackE
    JackE ACE Posts: 44,868 Trailblazer
    The internal microphone is located at the #10 position on this image. Jack E/NJ

    Jack E/NJ

  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    Yes, that is picture from that position. Microphone has 4 pins and it is connected with monitor cable. 
  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    I follow the cable and t is connected with monitor cable. And they are all together connected to MB on the same connector. Do you need picture?
  • JackE
    JackE ACE Posts: 44,868 Trailblazer
    If the connector with the four wires is fully disconnected from the main board, you should be able to check for 30-40 ohms between any 2 of the 4 solder bumps that I've circled on the image below. I think it's the black & red wires but I'm not sure. Can you read the letters above each bump? If all you find are open circuits, the mic is probably no good. Jack E/NJ
       

    Jack E/NJ

  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    I am going to check it now. I will text you very soon.
  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    I am give values between 615ohm and 1200ohms.
  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    I give values between 615ohms and 1000ohms.
  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    *get values sorry
  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    And that are values between first and second pin from left. Any other combination gives me 0ohms.
  • JackE
    JackE ACE Posts: 44,868 Trailblazer
    >>>Any other combination gives me 0ohms.>>>

    0 ohms??? Zero ohms??? Something's wrong? 0 ohms is a dead short!! Do you mean infinite ohms? Open circuit? Jack E/NJ

    Jack E/NJ

  • krstivoje
    krstivoje Member Posts: 58 Troubleshooter
    It is possible that it is open circuit. But my multimeter shows me 0. It is digital miltimeter. Are values between 0.6kOhms and 1kOhms ok?
  • JackE
    JackE ACE Posts: 44,868 Trailblazer

    >>>It is possible that it is open circuit>>>

    We need to check multimeter. If multimeter probes are touching each other, its display should be zero ohms or very close to zero ohms. If multimeter probes are then separated, its display should be infinite ohms or a symbol that represents infinite ohms.    Jack E/NJ

    Jack E/NJ