In my case, I went out of my way to ensure that I had proper ESD procedures in place when I opened and assembled my kit. Wrist strap, anti-static mat with grounds. The unit powered up perfectly the first time, no problems except for a bad pcm1804. I am convinced
that the chip was DOA.
Note that there are a variety of failure modes. That is telling us something.
Tony
AD0VC
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Both my QMX builds came in an anti-static bag.
The instructions do say to observe ESD precautions, but the boards see quite a bit of handling by the builder to separate the various sub-boards and file down the rough edges.? I know I personally wasn't observing ESD precautions at that particular juncture
in the building process, but humidity levels were fairly high when I was doing so.?? Or perhaps some builders don't have soldering equipment with grounded tips?? It certainly is an enigma...
72 de Russ, va3rr
On Thu, Jul 11, 2024 at 10:16 AM, Chuck AI7SY wrote:
> A possible solution could be as simple as antistatic bagging the main board
> for shipping.
