On Friday, September 19, 2003, at 12:24 AM, Graeme Finlayson wrote:
Hi folks,
I recently bought a Classic II to add to my collection of compact mac's and the seller indicated that it made a noise like an old fashioned kettle boiling on a gas stove - and true to his word it did when I took it out the box. My first suspicion was that the hard drive bearings were shot so I decided to replace the hard disk which has lessened the problem considerably, but it still makes a whistling noise when running - even when the hard drive isn't being accessed. Anybody got any ideas? I'm not sure if I could be looking at a problem with the motherboard or not as the drive I installed was a known good, silent runner on a Mac SE just before I put it in.
Any advice or ideas appreciated!
Disconnect the speaker and see if it goes away. If it does it's a dead capacitor in the audio section of the main board. In a huge batch of LCs I bought I had 2 LCIIs that did this and both had massive patches of goop all over the audio section (near the audio controller and the headphone port at the back) that look, from my experience with similar problems on an SE/30, like capacitor electrolyte - my dad also concurred (electronics guru) that it is a likely cause of audio whistle. Yet another example of Apple indulging in a phase of cheap a$$ manufacturing :)
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