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VCCINT_EN is 18 ohms to ground, while GTY_VTT_EN is much higher (many K ohms). Both use the same DC-DC module.

So I consider that proof of a short under the Murata module for VCCINT.

This explains why the output wasn't even moving on the scope, the module was never turning on.


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Andrew Zonenberg

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Looking more I see *five* mid chip solder balls on this module. I don't think it's happy at all.


Time to grab my IR preheater I almost never use. This thing isn't coming off with just hot air.

I hate power rework... so much thermal mass on everything.

by Andrew Zonenberg ;


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