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Re: Input RF switch fault found on TinySA ultra

 

Kindly suggestion: never use a graphite pencil as a pointer to components on a PCB. One might inadvertantly create a conductive path on the board without knowing it. This is just a general rule of thumb.

DaveD
KC0WJN


On Tue, Apr 1, 2025 at 04:36 pete verrando via <pverrando=[email protected]> wrote:
Based on the "fault finding" tab at , my SA ultra's input RF switch chip U22 (AS179-92LF) has failed. This chip is so tiny it seems there is not a soldering iron or tweezer small enough to replace it. It's like a microscope-dependent repair! Has anyone had success with this repair, or is it just smarter to buy a whole new SA Ultra?
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