Sounds like it could be the power distribution board electrolytic caps
needing replacement.
Barry N1EU
On Tue, May 13, 2014 at 9:19 PM, Vance Leedy <w7iex@sbcglobal.net> wrote:
> My Orion has a problem in that it will reduce power from 100w to approx
> 25w primarly on dits during cw operation, not all dits, just one or two now
> and then if it is in a failure mode. Of course this is not consistent.
> SSB operation and both receivers work well. When it fails the ALC does not
> illuminate and there is no audible click from the relay on the A0 board.
> Typical conditions/settings are as follows: Keying- Internal, external
> or straight key. Two different DC supplies tried. QSK delay=17%, cw
> weighting 100 (range 50-150). Antennas: either of two antennas or dummy
> load. Keying speed usually 20-25wpm. CW rise time 7ms
> If someone has encountered this I would like to hear the resolution.
>
> To add to the mystery, another condition exists, but am not sure if it is
> my rig or all Orion I's . Setup- reduce power to 1-5 watts, send a few
> characters. Increase power to 100w. Perform a key down. My rig takes
> approx three seconds to reach 100w. Normal?
> Subsequent key down operations immediately goto 100w.
>
> Thanks for you time,
> Van
> W7IEX
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