[ICOM] 775 PSu problem

[Anders Janis SM4RNA]

I have shared the scematic and componentlist to www.mods.dk and Adam VA7OJ/AB4OJ's great site.

I have been told by ICOM peolpe that the PS for the IC-775 was made by the same company that makes the PS-125. Two great PS without any QRN generator. (I also have a weak memory that also the PS for the PW-1 is the same brand.)

The PS-85 was built by someone else,,,,,,,,

/Anders


----- Original Message ----- 
From: "Brian Hemmis" <k3usc at adelphia.net>
To: "ICOM Reflector" <icom at mailman.qth.net>
Sent: Monday, November 07, 2005 5:21 PM
Subject: Re: [ICOM] 775 PSu problem


> I've heard that the PS for the 775 was built for Icom by an outside  
> vendor, no longer in business. Also that the PS has no schematic -  
> even in the service manual and that Icom can't/won't repair it. I  
> heard this yesterday from a ham on 40m using an external supply made  
> by Power Mate Corp. in Hackensack, NJ- I have no reason to doubt this  
> but can anyone verify it ?
> 
> 
> On Nov 7, 2005, at 11:10 AM, Marcus (pa2db) wrote:
> 
> > Hi, i have a nice 775dsp and sudently with transmitting the PSU  
> > blow up. A real heavy BOEM and a internal FET from the PSU  
> > (IRFPE50) is exploded. Im wondering is someone have this also and  
> > what he have done to solve this. Because is it only a bad FET or  
> > was there a reason to blow up. I saw another message with almost  
> > the same Question but no answers. With external 12V the mainboard  
> > is still working. The PA is not easy to test because the 28V. I  
> > hope not of course! Someone experience with this? Marcus pa2db
> > ----
> > 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/
> 
> ----
> 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/