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iPod Classic Firmware 1.1 WARNING - Page 2

post #16 of 147
1/20/08 at 3:37pm
Quote:
Originally Posted by serpico View Post
I would just exchange it for another just to make sure it's not the device. If you get the same problem with the new one, then it's probably a defect in the series. Maybe a flash model is better or just another brand.
Its definitely the 1.1 update causing this problem. I haven't experienced such problems prior to the latest update.
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post #17 of 147
1/20/08 at 4:45pm
I just measured the DC offset on my 80GB iPod Classic. I only found DC offset on one of the two channels, and while it was alarmingly high (ranged between about 30mV-80mV), I didn't measure it as high as 0.5V.

Cheers,
Brad
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post #18 of 147
1/20/08 at 5:02pm
I've also noticed that there is significant DC offset even while music is playing. I don't think I will be using any of my good headphones with this iPod until they fix this issue with the DC offset!
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post #19 of 147
1/20/08 at 5:13pm
Quote:
Originally Posted by Clutz View Post
I've also noticed that there is significant DC offset even while music is playing. I don't think I will be using any of my good headphones with this iPod until they fix this issue with the DC offset!
How dangerous is this for headphones
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post #20 of 147
1/20/08 at 5:16pm
Im really glad i haven't upgraded the firmware. Ill stay put till they sort it out!

Interestingly there isnt any talk of this over at Mac Rumors. I did mention it in a thread, but nothing.


Is anyone having issues with the LOD? Apparently that might be yet an another issue of the 1.1 upgrade. (I mean worse than the pausing/skipping discussed in the other thread)
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post #21 of 147
1/20/08 at 5:17pm
Quote:
Originally Posted by me7 View Post
How dangerous is this for headphones
It's quite dangerous. It could cause permanent damage. When building a headphone amp, you generally wouldn't connect your headphones to the headphone amp unless it had less than 10mV of DC offset - and I usually wait until I have less than 1mV if I'm able to get there. 80mV is a lot. 500mV (0.5V) is really a lot.
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post #22 of 147
1/20/08 at 5:28pm
Can i measure this myself with my cheap on-board audio in?

EDIT: Is there a way to downgrade a iPod? iTunes does not offer an option for that.
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post #23 of 147
1/20/08 at 5:31pm
No, I don't think so. You would either need to have a voltmeter or a scope. Volt meters are pretty cheap though - you can get one at Radioshack for about $10. It wouldn't be a great one, but it would let you measure the voltage output.
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post #24 of 147
1/20/08 at 6:21pm
I found an easy way to downgrade my iPod classic. First "Open iTunes and in Preferences uncheck automatic check for updates".

If you are a mac user, read here. Windows users need a different folder. Open "Documents and Settings", search the folder that represents your username and open the hidden folder "Application Data\Apple Computer\iTunes". Now proceed like the link tells.

Maybe someone with a voltmeter can check if the issue is really not present in the older firmware (maybe it was just undetected?).
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post #25 of 147
1/20/08 at 6:38pm
I think I will wait for a few days to see if Apple responds to this bug before I take that route. It took me nearly 3 days to transcode & copy all my ALAC files to 256 VBR AACs
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post #26 of 147
1/20/08 at 6:46pm
You know that you won't loose your library? Your iPod will be resynced immediately with iTunes.
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post #27 of 147
1/20/08 at 7:33pm
Quote:
Originally Posted by zumaro View Post
Ahh the explanation for what so many of us are experiencing - hiss and static noises after the iPod is turned off. Well done Apple - your quality control department must have been fired by now with crap update after crap update slipping through?


I am starting to wonder if Apple out sourced all Ipod QA to India recently....
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post #28 of 147
1/20/08 at 11:34pm
Well at least I know now that my ipod isnt messed, when I first heard the afformentioned noise I was getting ready to return the damn thing.
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post #29 of 147
1/20/08 at 11:42pm
Knowing Apple they won't update the Classic any more, and then 6 months from now charge users $20. Crazy fruit company.
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post #30 of 147
1/21/08 at 12:23am
Wow. Will Apple be replacing all the Shure and UE IEMs that are damaged by this mishap?
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