[ICOM] PS-125

Mike nf4l at nf4l.com
Wed Nov 4 13:25:19 EST 2009


But I blew in it's ear and bought it a drink.....

Mike NF4L

D C *Mac* Macdonald wrote:
> Because the damned thing isn't turned on!
>  
>
>
>
>
> * In my many years, I have come to the conclusion that one useless *
> * man is a shame, two is a law firm and three or more is Congress. *
>
> * -- John Adams (1735- 1826) *
>
>
>
>
>  
> > Date: Wed, 4 Nov 2009 13:14:04 -0500
> > From: nf4l at nf4l.com
> > To: icom at mailman.qth.net
> > Subject: Re: [ICOM] PS-125
> >
> > Hmmmm....
> >
> > I haven't shorted any pins. Wonder why I can't read any voltage across
> > any combination of the 4 pins?
> >
> > Mike, NF4L
> >
> > Larry Young wrote:
> > > "I don't think that is what he means? The Icom supplies need 2 
> pins to short
> > > for the supply to work. The on off on the radio is for the both 
> the supply
> > > and the radio"
> > >
> > > This was indeed true for the earlier Icoms such as the 740 & 745 
> etc. Not true for the 756Pro series of recent radios which contain 
> settable turn on timer circuitry. These radios require the presence of 
> +13.8 V for the timer to work.
> > > Do not short any pins of the PS-125 plug. Two pins are the 
> positive and two are the negative pins.Only the front panel rocker 
> switch of the PS-125 is used to turn it off and on. Either an over 
> voltage or over current condition will cause the internal controller 
> to sut down the supply until it is reset.
> > > Larry K4LXV.
> > >
> > >
> >
> >
> > ----
> > Your Moderator: Dick Flanagan K7VC: icom-owner at mailman.qth.net
> > Icom Users Net: Sundays, 1700Z, 14.316 MHz
> > Icom FAQ: http://www.qsl.net/icom/
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