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Re: QMX(+) Build experience, Poor Audio Filter Sweep/RF Filter Sweep/Image Sweep/ADC IQ test and resolution with new PCM1804


 

Hi Jerry
?
If boards with a failed PCM1804 never fail when the part is replaced, that points to counterfeit parts.?

No, it doesn't; counterfeit parts is only one option; there could also be ESD problems causing it, either during assembly, or subsequent handling somewhere along the line; or there could be problems during our bootloader flashing and testing procedures.?
?
And I'd not have them stuffed at that assembly house, make it?a hand add at QRP Labs instead.

Just when I thought I was already having the maximum amount of fun possible per day...

73 Hans G0UPL

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