[Amps] Alpha 87a No RS-232

[Gerry Hull]

Yep -- he already has and I have a good-to-go plan.  Glenn has been awesome.

73,

Gerry Hull, W1VE  Hancock, NH USA






On Tue, Jul 3, 2018 at 5:11 PM Mike <cwdxer at cwdxer.net> wrote:

> Gerry,
>
> I suggest you contact Glenn AE0Q at Service at alpharfsystems.com. Glenn
> has helped me for years whenever I had issues with my 87A.
>
> 73 de Mike W1YM
>
>
> On 7/2/2018 7:49 AM, Gerry Hull wrote:
> > Hello All,
> >
> > We have two Alpha 87as at K2LE.   They have been rock solid amps for
> > decades.
> > However, we operate remotely, and rely upon RS-232 using the great DF3CB
> > software.
> >
> > We have the same failure mode in both amps.   The TX side of the serial
> > port has failed.   We can command the amp on,
> > But that is it.   We have verified multiple times and multiple ways that
> > the cable and ports are working perfectly (short TX/RX
> > Pins on the amp-side connector and ensure echo on a terminal program).
> >
> > I see very little about this subject in the archives.  Has anyone else
> > experienced this?
> >
> > Does anybody know if the Max232 chip is soldered?   This is what I
> suspect,
> > since the amplifier is fully functional otherwise.
> >
> > Is there some master reset we can try with a combo of front panel
> buttons?
> >
> > Your collective wisdom appreciated.
> >
> > 73, Gerry W1VE
> > For Andy, K2LE and the team
> >
> >
>
>