No Sound

tazlad · tazlad #1 (**permalink**)

05-18-2009, 02:06 PM

I'm fairly new to macs so I hope you can help a newbee at this. Today i played music from my Macbook Pro via a cable plugged into my headphone port and into my amp. Everything was great until i unplugged and now no sound will play out of my macs own speakers. What have i done wrong? There is a red light on in the headphone port if that helps anyone?

dtravis7 · dtravis7 #2 (**permalink**)

05-18-2009, 02:07 PM

It's stuck in Optical Digital mode for the Tos-Link cable. Try plugging the plug back in and out a couple of times and see if the sound comes back.

tazlad · tazlad #3 (**permalink**)

05-18-2009, 02:17 PM

Tried that. Still no luck. Any other ideas?

dtravis7 · dtravis7 #4 (**permalink**)

05-18-2009, 02:24 PM

Try this tip:

It sounds like it is jammed in optical audio out mode.

There's a microswitch that turns the port on and off. Looking into the port, the switch is a small metal thing near the back of the port, on the right side. Take a toothpick or some similar object and poke at the switch until it unsticks and the light goes off.

Also I saw it suggested to try the headphones in and out 10 or more times.

Also another Tip was to reset the PMU. Shut down your Macbook Pro, disconnect the magsafe adapter, and remove the battery. Press and hold the power button for at least 5 seconds.

tazlad · tazlad #5 (**permalink**)

05-18-2009, 03:23 PM

A bit more in and out and its working. Thanks for your help.

dtravis7 #2 (permalink)
Member Since: Jan 04, 2005 Location: Modesto, Ca. Posts: 25,771 Mac Specs: iMac C2D Late 2007 20" with 10.8.3, Macbook Santa Rosa 4GB Ram OSX 10.8.3	05-18-2009, 02:07 PM It's stuck in Optical Digital mode for the Tos-Link cable. Try plugging the plug back in and out a couple of times and see if the sound comes back. ...Dennis Mac-Forums Community Guidelines
	QUOTE Thanks

dtravis7 #4 (permalink)
Member Since: Jan 04, 2005 Location: Modesto, Ca. Posts: 25,771 Mac Specs: iMac C2D Late 2007 20" with 10.8.3, Macbook Santa Rosa 4GB Ram OSX 10.8.3	05-18-2009, 02:24 PM Try this tip: It sounds like it is jammed in optical audio out mode. There's a microswitch that turns the port on and off. Looking into the port, the switch is a small metal thing near the back of the port, on the right side. Take a toothpick or some similar object and poke at the switch until it unsticks and the light goes off. Also I saw it suggested to try the headphones in and out 10 or more times. Also another Tip was to reset the PMU. Shut down your Macbook Pro, disconnect the magsafe adapter, and remove the battery. Press and hold the power button for at least 5 seconds. ...Dennis Mac-Forums Community Guidelines Last edited by dtravis7; 05-18-2009 at 02:33 PM.
	QUOTE Thanks

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tazlad #1 (permalink)
Member Since: May 18, 2009 Posts: 3	05-18-2009, 02:06 PM I'm fairly new to macs so I hope you can help a newbee at this. Today i played music from my Macbook Pro via a cable plugged into my headphone port and into my amp. Everything was great until i unplugged and now no sound will play out of my macs own speakers. What have i done wrong? There is a red light on in the headphone port if that helps anyone?
	QUOTE Thanks

tazlad #5 (permalink)
Member Since: May 18, 2009 Posts: 3	05-18-2009, 03:23 PM A bit more in and out and its working. Thanks for your help.
	QUOTE Thanks

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