Front G5 Audio Jack - Sound only coming from Left

[gavinstubbs09]

This is bugging me, no matter what set of headphones I use the audio only comes out of the left side.

I checked the sound under system preferences, it was balanced to the center, moving to the right did nothing. Next I opened Audio MIDI Setup and everything I changed in there did nothing. Third thing I did was remove the front I/O board from my 2.7 that I know works and put it into the 2.3, and even after doing this the audio still played to the left. I also swapped the black cable that connects the I/O board to the Logic Board.


Any ideas?

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And I've also noticed the "Bong" when I start up only comes from the left side as well, so certainly not an OS issue. Booted up into Tiger and same issue.

 

[poiihy]

Speaker plug not plugged in all the way, and/or audio jack is bad. Maybe some dirt preventing plug from going in all the way.

 

[Altemose]

Speaker plug not plugged in all the way, and/or audio jack is bad. Maybe some dirt preventing plug from going in all the way.

OP tried swapping the front board which would eliminate that possibility but it is a good thought.

 

[gavinstubbs09]

Nobody has one idea?!?!?

 

[Intell]

Replace the logicboard.

 

[DeltaMac]

Do you also get only left audio from the rear audio-out port?
That should decide that the logic board is bad.

 

[gavinstubbs09]

Do you also get only left audio from the rear audio-out port?
That should decide that the logic board is bad.

The rear works fine with L/R audio, but the front panel is only the left.

 

[poiihy]

The rear works fine with L/R audio, but the front panel is only the left.

Most likely not the logic board and instead a connection between the front I/O assembly and the system. Inspect the lines.

 

[DeltaMac]

Most likely not the logic board and instead a connection between the front I/O assembly and the system. Inspect the lines.

OP said he already tried swapping the connector cable for that front panel board.

Pins 17 & 18 are right & left, respectively, on that connector cable.

So - if you can't get the right channel to work on the front connection, and the front panel board, and its connection cable don't fix - then it's a line on the logic board. I think that's a printed circuit line, but you COULD pull the logic board to examine the back of the front panel connector, and the rest of the printed circuit for that.
I'm thinking that you'll now need some luck to fix that issue - so you might consider forgetting the front audio out, and just use the rear port - if that works.