[ICOM] FW: Info on Icom PS-55 Needed

[D C _Mac_ Macdonald]

I'm going to have to dive into the P.S. to figure out what's going on.  Both the added toggle on the P.S. AND the IC-735 power switch have to be on to power up the radio.  I suspect, but have not checked, that the 735 power switch MAY activate a relay that switches the 13.8 VDC as well as applying AC power to the P.S.  As it is, the P.S. WILL power the 735. 
 
In checking the PS-55, I find that the added toggle does get 13.8 VDC to the six-pin power plug. 
 
I also discovered that the P.S. output is running about 14.6!  I believe it to be advisable to reset the voltage to the specified 13.8 for safety of my 735.
 
* * * * * * * * * * * 
* 73 - Mac, K2GKK/5 * 
* (Since 30 Nov 53) * 
* k2gkk hotmail com * 
* Oklahoma City, OK * 
* USAF & FAA (Ret.) * 
* * * * * * * * * * * 
 

> Date: Thu, 18 Jun 2015 14:08:05 -0700
> From: gfiber at comcast.net
> To: icom at mailman.qth.net
> Subject: Re: [ICOM] FW: Info on Icom PS-55 Needed
> 
> So far as I remember the AC for the PS-55 did indeed go through the 
> IC-735 power switch. The PS-55 6 pin connector has 6 wires, 4 are the DC 
> and the other two are the AC. Some over the years did wire a separate 
> switch into the PS-55 since there was no other way of powering up that 
> supply with out connection to an Icom product or installing a switch or 
> at least jumping the 2 AC wires together.
> 
> Gary K8IZ
> 
> On 6/18/2015 11:40 AM, Jim Hargrave wrote:
> > Sounds like someone wired the toggle switch in series with the 735
> > power switch.
> > If you leave the toggle switch ON, does the 735 switch power the
> > supply ON/OFF?
> > Another thought. The 735 power switch is small and should not be
> > wired directly to the AC input.
> > Perhaps someone has wired a relay circuit to turn on the primary.
> >
> > 73, Jim - w5ifp at gvtc.com