Amps
[Top] [All Lists]

Re: [Amps] 91B problem in Paraguay

To: amps@contesting.com
Subject: Re: [Amps] 91B problem in Paraguay
From: Ian White GM3SEK <gm3sek@ifwtech.co.uk>
Reply-to: Ian White GM3SEK <gm3sek@ifwtech.co.uk>
Date: Sun, 21 Mar 2010 14:56:19 +0000
List-post: <amps@contesting.com">mailto:amps@contesting.com>
DALE LONG wrote:
>Turned on my hosts amp this morning and tripped the 2amp slow-blow 
>fuse...Got more fuses this afternoon and same thing keeps happening.
> 
>Seemed to shut down normally althought there may have been a problem 
>with a sticky T/R relay before turning off the amp.
> 
>Any ideas what could be causing the 2 amp fuses to blow when turning on 
>the switch?

I don't have the schematic but am fairly sure the "2A T" fuses protect 
the step start resistors at the mains input. They blow when the 
step-start relay fails to close. You should be able to hear that relay 
click, a few moments after you switch on.



-- 

73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek
_______________________________________________
Amps mailing list
Amps@contesting.com
http://lists.contesting.com/mailman/listinfo/amps

<Prev in Thread] Current Thread [Next in Thread>