Your “ground” is connected via the big 2R2 inductor direct to vsys. If vsys is shorted, you can hope that something is getting warm if 1V are injected. Otherwise there are many possible places for a short.
Your “ground” is connected via the big 2R2 inductor direct to vsys. If vsys is shorted, you can hope that something is getting warm if 1V are injected. Otherwise there are many possible places for a short.