On Thu May 4 2006 02:17 am, ARDUJENSKI@aol.com wrote:
> I got a report running the Scout that there was a chirp on the
> transmission. Checking the PS the voltage drops from 14.2 to about 10.3
> vdc. I was hoping someone could help point me to where to start in
> troubleshooting the PS.
>
> Thanks
>
>
> Alan KB7MBI
> Woodinville, WA
>
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It's my understanding that the 937 is a relabeled Astron SL-11. I haven't
found a schematic posted anywhere for it yet but the RS series especially the
RS-10 or RS-12) are probably very similar electrically. Try this link:
http://www.repeater-builder.com/astron/astron-index.html
Probably the first suspect would be a partially open bridge rectifier --- that
is a known issue with some of the TT built supplies per their repair
department.
--
73 es GL, Al
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