W2 problems

Posted by STEPHEN BUNTING on
URL: http://elecraft.85.s1.nabble.com/W2-problems-tp6905837.html

Hi gang,

I have a w2 wattmeter that worked well when it was first built and has
been in storage for the last few months. Now, when I apply DC the start
up calibration routine runs just fine and the meter is ready to go.
However, when I apply RF several LEDs light as expected but within a
second or so the meter turns itself off. I have tested with a dummy load
rather than an antenna and different frequencies and at RF power levels
all with the same result. Once the meter is off I can restart it by
simply pressing the power button again.

Any idea what has gone wrong and how I can fix this issue?
73
Steve
M0BPQ
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