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Groups > comp.sys.mac.system > #99899

Re: Old MBP's headphone jack port don't always work with connected speakers.

Cross-posted to 2 groups.

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On 2017-02-08, Ant <ANTant@zimage.com> wrote:
> In comp.sys.mac.portables David Empson <dempson@actrix.gen.nz> wrote:
>
>> A possible explanation is a faulty socket which is mistakenly activating
>> digital optical audio output rather than analog audio output. If it only
>> happens for some speakers, it might only be happening while the plug
>> from those particular speakers is connected - perhaps it is a slightly
>> different shaped plug which is falsely triggering the digital optical
>> output mode, or there could be a physical obstruction in the socket
>> which is preventing the plug from going all the way in, resulting in the
>> same effect.
>
> I forgot to mention that these are analog speakers only.
>
>> If the output was stuck in digital mode you would see a red light in the
>> socket when looking into it, but if it only happens while a plug is
>> inserted, it may be hard to spot.
>
> Hmm, we never saw this red light before but then we don't have any 
> digital speakers.

The output can still get stuck in digital mode; so you should look for
the red light to make sure it's not turned on.

-- 
E-mail sent to this address may be devoured by my ravenous SPAM filter.
I often ignore posts from Google. Use a real news client instead.

JR

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Thread

Old MBP's headphone jack port don't always work with connected speakers. ANTant@zimage.com (Ant) - 2017-02-07 00:41 -0600
  Re: Old MBP's headphone jack port don't always work with connected speakers. Nelson <nelson@nowhere.com> - 2017-02-07 04:31 -0500
  Re: Old MBP's headphone jack port don't always work with connected speakers. dempson@actrix.gen.nz (David Empson) - 2017-02-08 10:33 +1300
    Re: Old MBP's headphone jack port don't always work with connected speakers. ANTant@zimage.com (Ant) - 2017-02-08 02:14 -0600
      Re: Old MBP's headphone jack port don't always work with connected speakers. dempson@actrix.gen.nz (David Empson) - 2017-02-08 21:29 +1300
      Re: Old MBP's headphone jack port don't always work with connected speakers. Jolly Roger <jollyroger@pobox.com> - 2017-02-08 15:14 +0000
        Re: Old MBP's headphone jack port don't always work with connected speakers. ANTant@zimage.com (Ant) - 2017-02-09 03:02 -0600
          Re: Old MBP's headphone jack port don't always work with connected speakers. Jolly Roger <jollyroger@pobox.com> - 2017-02-09 13:11 +0000
            Re: Old MBP's headphone jack port don't always work with connected speakers. ANTant@zimage.com (Ant) - 2017-02-09 19:18 -0600
              Re: Old MBP's headphone jack port don't always work with connected speakers. Jolly Roger <jollyroger@pobox.com> - 2017-02-10 02:10 +0000
              Re: Old MBP's headphone jack port don't always work with connected speakers. Lewis <g.kreme@gmail.com.dontsendmecopies> - 2017-02-10 23:51 +0000
          Re: Old MBP's headphone jack port don't always work with connected speakers. Steve Carroll <frelwizzen@gmail.com> - 2017-02-10 18:21 -0800

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