[Amps] Help ! Hard Fault 99

[W0UN--John Brosnahan]

Hi, Jamie--

I didn't mean to send the copy of the Glenn note to the reflector!    ;-)
But now that I have I guess I will continue.  Without the error code
I don't know what to tell you.  The AC mains issue is only one
scenario that comes to mind.  And I copied the reply to the reflector
for the education of other readers--not to embarrass anyone!    ;-)
I am especially bad about not reading manuals--computer manuals
specifically!

Basically Eimac specs filament voltage at +/- 5%.   And 5% of
240 volts (the tap you set) is 12 volts.  240 volts minus 12 volts
is 228 volts as a lower limit.  You say your line voltage is 230 volts
+/- 5 volts.   Or 225 to 235 volts.   If it drops to 225 then it is outside
the range of the 240 volt tap and its +/- 5% range.   So I think a line
voltage issue is a distinct possibility--maybe even a probability.
You need to set your line voltage tap to the proper one for your
line voltage and also contact CrossLink about resetting the fault 99.

I have three Alpha 87As--although that does not make me an
expert on faults.    I have had very, very few over the 10+ years
that I have owned 87As.

Good luck--John   W0UN

At 10:18 PM 2/2/2003 -0600, James C. Hall, MD wrote:
>Thanks John for your very good information.  I indeed missed the part 
>about the fault 99 and the 6 tries, your out deal.  But I did read the 
>rest of the manual.  Checking the AC main prior to hookup, I measured 230 
>volts +/- 5 volts.  I left the tap at 240 volts.  Was this an error 
>?  Should I have moved the tap to 220 volts ???  After resetting the 
>microprocessor, I tried again, this time looking directly at the segment 
>lights and with the terminal on.  It again failed and shut off immediately 
>- no indication on the segment lights was given and the terminal program 
>returned no useful information.
>
>I, like you, think I might have erred on the tap setting.  I will 
>re-evaluate and discuss with Glenn tomorrow.
>
>Thanks again,
>
>Jamie  WB4YDL