powerbook no sound

[Calum2]

Having a minor problem with my powerbook 17" 1.5ghz considering how cheap it was. There is no sound at all through the computers speakers, the jacks work perfectly though. When doing the thermal paste I had a look around inside and everything related to audio is visibly in working order.

Any ideas? thanks

 

[Traace]

First of all idk if your powerbook has digital audio support. Mine from 2005 has, so I guess this one too.

1. Remove your headphones from jack.

2. Take a look into OSX Sound System Settings, does it shows Internal Speaker, just Digital-Output or nothing?
3. If it says only digital output, check the output jack, hold a white paper or something in front of it, does it have a red light on?

 

[Calum2]

First of all idk if your powerbook has digital audio support. Mine from 2005 has, so I guess this one too.

1. Remove your headphones from jack.

2. Take a look into OSX Sound System Settings, does it shows Internal Speaker, just Digital-Output or nothing?
3. If it says only digital output, check the output jack, hold a white paper or something in front of it, does it have a red light on?

for the sound in system it says: Internal speakers> built in audio
I do not see a red light from the headphone jack
in the midi settings everything looks normal to me

edit: just realised you didnt mean headphone jack, I dont have one of the other ports that you mean

 

[Traace]

edit: just realised you didnt mean headphone jack, I dont have one of the other ports that you mean

I mean the headphone jack , some powerbooks use them as a multi-port for analog(electrical) but also digital audio(optical). Their circuit switch chip is known to be fauly.
However it seems as your powerbook 17" 1.5ghz doesn't support digital audio its not affected anyway.



Must be something different. Try a clean install first. Then test the speakers alone with a low input signal. Also check if the connector to the mainboard is still fine.

If its all fine, I would mesure mainboard audio lanes from connector to its chip. Then mesure all parts involved.

 

[Calum2]

I mean the headphone jack , some powerbooks use them as a multi-port for analog(electrical) but also digital audio(optical). Their circuit switch chip is known to be fauly.
However it seems as your powerbook 17" 1.5ghz doesn't support digital audio its not affected anyway.



Must be something different. Try a clean install first. Then test the speakers alone with a low input signal. Also check if the connector to the mainboard is still fine.

If its all fine, I would mesure mainboard audio lanes from connector to its chip. Then mesure all parts involved.

Thanks ill go and measure all the points, test the speakers on something else etc, it came with a fresh install when I got it so I dont think that that is related

 

[Dronecatcher]

Have you reset PRAM? Used software update to make sure you're on 10.4.11 or 10.5.8?

 

[Calum2]

Have you reset PRAM? Used software update to make sure you're on 10.4.11 or 10.5.8?

Yes ive reset pram aswell as the other one, I just updated everything via software update but no change sadly