[ICOM] PS-125

[Larry Young]

"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.


--- On Wed, 11/4/09, Dan Cotsirilos <k9dtc at comcast.net> wrote:

From: Dan Cotsirilos <k9dtc at comcast.net>
Subject: Re: [ICOM] PS-125
To: "ICOM Reflector" <icom at mailman.qth.net>
Date: Wednesday, November 4, 2009, 7:10 AM

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

When he plugs it into his Pro 2 the radio shorts these pins on turn on.

To use this supply with other radios these 2 pins must be manually 
connected.


Dan K9DTC
----- Original Message ----- 
From: "Walt Heilsnis - WB2VSJ" <wb2vsj at earthlink.net>
To: "ICOM Reflector" <icom at mailman.qth.net>
Sent: Wednesday, November 04, 2009 6:03 AM
Subject: Re: [ICOM] PS-125


> Mike,
>
> If you have shorted the + - temporarily, the unit will stop providing 
> power until
> the short is removed and you power cycle the PS-125.  I'm guessing you 
> stuck the meter
> probes into the plug and they shorted for a second while the unit was on?
>
>
> Walt - WB2VSJ
>
> -----Original Message-----
>>From: Mike <nf4l at nf4l.com>
>>Sent: Nov 4, 2009 6:28 AM
>>To: ICOM Reflector <icom at mailman.qth.net>
>>Subject: [ICOM] PS-125
>>
>>What's the secret for getting some power to ooze out of a PS-125? I'd
>>like to use one on some other gear, but when I try to read the plug, I
>>get nil. Works fine on the PRO II though.
>>
>>73, Mike NF4L
>>
>>----
>>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/
>>To support QSL/QTH.net: http://www.qsl.net/donate.html
>
> ----
> 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/
> To support QSL/QTH.net: http://www.qsl.net/donate.html 

----
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/
To support QSL/QTH.net: http://www.qsl.net/donate.html