There is an over voltage protection diode inside. Maybe it was tripped?
Easy to replace.. I think it is right rear when looking from the top and
front of the radio. Just a short HV spike can trigger that diode. You
can find it on the K3 schematic.
Dave K1WHS
On 5/6/2023 2:30 PM, Bill Gillenwater wrote:
Current setup.
K3 with P3 early serial. Back to factory for complete update. Gold
Pins etc.
Today K3 shut down.
Found blown 15 amp fuse in ground side of power supply cable
Power supply is MFJ 4035MW.
Have had no previous problems with this setup.
Occasionally there was a message on the K3 saying LOW VOLTAGE.
Thanks for ideas and assistance.
73 Bill K3SV
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