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Odd fuse blowing. iMac 2010

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Re: Odd fuse blowing. iMac 2010

Postby DAGGILARR » Thu May 09, 2019 6:03 pm

ef37a wrote:
I would not think so. Have to get it out and have the correct capacitor fitted and have a good look for other damage and, because it is a mains side repair it will need a PAT cert.

Dave.

I am going to take the machine to a tech tomorrow. What should I tell him to check? If I can avoid having to buy a PSU that would be great.
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Re: Odd fuse blowing. iMac 2010

Postby ef37a » Thu May 09, 2019 6:09 pm

DAGGILARR wrote:
ef37a wrote:
I would not think so. Have to get it out and have the correct capacitor fitted and have a good look for other damage and, because it is a mains side repair it will need a PAT cert.

Dave.

I am going to take the machine to a tech tomorrow. What should I tell him to check? If I can avoid having to buy a PSU that would be great.

Oooo! Techs rarely like to be "told" things! Puts zeros on bills. I would send him a link to this thread first!

Dave.
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Re: Odd fuse blowing. iMac 2010

Postby DAGGILARR » Mon May 20, 2019 4:15 pm

It turns out it is not the power supply. A new one has been tried and the thing still blows fuses when it comes out of sleep. What in the world could it be that can fire in excess of 13 amps out through the power lead and not completely fry the machine?
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Re: Odd fuse blowing. iMac 2010

Postby Folderol » Mon May 20, 2019 4:50 pm

Sorry to hear this.
Unfortunately the 'power supply' is only half of the actual supply control and distribution. At this stage I think your only option is to take the machine to a real expert.
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Re: Odd fuse blowing. iMac 2010

Postby DAGGILARR » Mon May 20, 2019 4:57 pm

Folderol wrote:Sorry to hear this.
Unfortunately the 'power supply' is only half of the actual supply control and distribution. At this stage I think your only option is to take the machine to a real expert.

I am up against the law of diminishing returns here, but yeah, that’s the thing to do. Or just use it without sleeping it.
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Re: Odd fuse blowing. iMac 2010

Postby DAGGILARR » Tue May 21, 2019 7:59 pm

Update.

The machine still blows fuses, but only when coming out of stand by. It is not a fault with the power supply. The current is definitely coming out of the machine and blowing the first fuse it encounters. It does not blow when the display wakes. It functions fine apart from this. Consensus is the fault is on the logic board.

Thanks for all the support and input on this rather odd fault. I shall continue to use it without letting it go into stand by. I have started fund raising for a replacement, had two good pledges from pals already.
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Re: Odd fuse blowing. iMac 2010

Postby Janneman » Tue May 21, 2019 10:35 pm

Hi there, contact this guy. Maybe he can give some more info.

https://rossmanngroup.com/
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Re: Odd fuse blowing. iMac 2010

Postby DAGGILARR » Tue May 21, 2019 10:58 pm

Janneman wrote:Hi there, contact this guy. Maybe he can give some more info.

https://rossmanngroup.com/

I followed the link. Do you think he will be open to advising me despite the fact that I am in the UK, and the US?
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Re: Odd fuse blowing. iMac 2010

Postby Janneman » Wed May 22, 2019 7:29 am

Goodmorning, send him a email. Maybe he will give you some advice how to handle. Regards from Holland.
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