[Kenwood] TS950SDX reduced output

[Peter Ravn]

During operation the output on my TS950SDX suddenly went down to 50W, and there it remains. According to the instruction manual the power is lowered to 50W, if the power transformer temperature rises to about 80C. This is to protect the power transformer. However, the transformer temperature in my TS950SDX is no more than 55-60C, and both all three fans work as they should.

Any clue? Thanks in advance.
OZ8CTH
Peter