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Issue with Built-in microphone in iMac
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Junior Member
Join Date: Feb 2008
Status:
Offline
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What's the best way to test if the built-in microphone in an iMac is working or not ?
I recently got skype but my callers are unable to hear me. The Input volume of the Internal microphone is at its highest level (re System Preferences) and I have the sound output going to the stereo audio amplifier.
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Clinically Insane
Join Date: Nov 1999
Location: Where Airbus babies hatch
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If you make noise, do you see the level meter in System Preferences actually registering signal?
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Moderator  Join Date: May 2001
Location: Hilbert space
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Also, double-check in the Sys Prefs that the internal microphone is actually chosen as input.
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I don't suffer from insanity, I enjoy every minute of it.
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Junior Member
Join Date: Feb 2008
Status:
Offline
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No Spheric Harlot, clapping loudly in front of the microphone registers zilch and yes Oreocookie I have that open and it is chosen.
I'm beginning to wonder if this issue is related to my broken dvd drive in that they both should operate perfectly through the logic board ?
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Professional Poster
Join Date: Mar 2004
Location: UK
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Its possible it simply wasn't properly reconnected during one of your many many repairs. They can get loose on some iMacs when repeatedly opened. Especially the white ones.
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MacBook 2.0GHz CD; MacBook Pro 15" 2.4GHz Late '08; PowerMac G4 MDD Dual 1GHz; 3x Xserve G4 1GHz; Mac Mini 2GHz; Big pile of broken and working bits;
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Junior Member
Join Date: Feb 2008
Status:
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Thank you Waragainstsleep, although I have the aluminum 2007 model it's helpful to hear of that possibility.
Nevertheless, I searched throughout the Apple support pages to see if the likely-hood of finding another solution to this issue, and leaned that running the Apple Hardware Test might at least offer up the error codes for both that issue and the intractable DVD drive issue. But hey I merely discovered that following these instructions the Apple Hardware Test wouldn't run ?
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Professional Poster
Join Date: Mar 2004
Location: UK
Status:
Offline
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Those instructions might be a bit new. Many recent Macs have AHT hidden away on their original Apple-branded HDD but before that it was on the supplied grey DVDs. Have a look at yours and see if it says AHT in the small print on either of them.
If it does, pop it in and hold the D key.
I'm not sure you will get error codes for those parts but its worth a go.
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MacBook 2.0GHz CD; MacBook Pro 15" 2.4GHz Late '08; PowerMac G4 MDD Dual 1GHz; 3x Xserve G4 1GHz; Mac Mini 2GHz; Big pile of broken and working bits;
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Junior Member
Join Date: Feb 2008
Status:
Offline
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I've been trying to run it from within the internet, largely because I'm unable to use the the DVD drive. More about that here.
Holding down the D key didn't engage the AHT, although thankfully the random noises of the DVD drive don't seem to be occurring they only happen a few times after waking from sleep mode,
Oh I thought the system itself would have somewhere in it, a list of possible error codes, although those would likely only be privy to an Apple technician, huh ?
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