Try to measure and reduce the? IRF bias to manage the recommended Idrain under idle condition(without any signal input)
On Wed, Feb 15, 2017 at 10:32 AM, Mparnell
<barakuda318@...> wrote:
I just recently wired up the bitx40 and when I turn on the power the display flashes and the speaker clicks but that it all. When I remove power from the PA socket, the radio resets itself and it begins to receive just fine (the display gets bright and the contrast is too high) but I can tune around and receive just fine. As soon as I plug the power back in to the PA socket, it display begins to flash again and the speaker clicks with the flash. I have searched for obvious signs of shorts etc.. however everything looks fine. I also noticed "by touch" that the final mosfet gets very hot. I checked to make sure nothing was shorted out against this and it is not touching ground. I would assume at this point that the output mosfet is toasted, or am I missing something??
