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by spoz
Tue Feb 28, 2017 8:15 pm
Forum: General discussion
Topic: Pi3 with a lightning bolt?
Replies: 48
Views: 194740

Re: Pi3 with a lightning bolt?

You are totally right. In between now and my last post I discovered the test points on the pi and did some probing. Turns out all of my USB cables are dropping 150-180mV. Though the input stage of the pi (current mirror and fuse) drops nearly 60mV. Edit: So after the input stage at TP7, I am still g...
by spoz
Tue Feb 28, 2017 7:09 pm
Forum: General discussion
Topic: Pi3 with a lightning bolt?
Replies: 48
Views: 194740

Re: Pi3 with a lightning bolt?

I have the same issue, I get the lightning bolt symbol quite often on boot. I have checked my power supply and it reads 5.21v the entire time, an the pi never draws more than 0.5A. I havent checked the ripple with an oscilloscope but I am using two good quality USB supplies and 0.5A is well within t...

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